{"id":8498,"date":"2026-01-13T14:06:51","date_gmt":"2026-01-13T17:06:51","guid":{"rendered":"https:\/\/vinq.us\/?p=8498"},"modified":"2026-01-25T22:30:36","modified_gmt":"2026-01-26T01:30:36","slug":"agua-rocha-fraturada-piezometro-zerado-talude","status":"publish","type":"post","link":"https:\/\/vinq.us\/en\/agua-rocha-fraturada-piezometro-zerado-talude\/","title":{"rendered":"Water in Fractured Rock: Why a &quot;zero&quot; piezometer reading doesn&#039;t mean a safe slope."},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"8498\" class=\"elementor elementor-8498\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-5779134 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"5779134\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-5e63c2b\" data-id=\"5e63c2b\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-9597493 elementor-widget elementor-widget-text-editor\" data-id=\"9597493\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Advanced technical analysis of hydrogeological and geotechnical challenges in fractured rock slopes, aligned with LOP best practices and ISRM recommendations.<\/span><\/p><h2><b>Introduction<\/b><\/h2><p><span style=\"font-weight: 400;\">Slope safety in fractured rocks is one of the major challenges in modern geotechnical engineering, especially in environments subject to variable water action and recharge regimes that change by hours, days, and seasons. Piezometric monitoring is a cornerstone for diagnosing the potential for instability, but its function goes far beyond simply &quot;measuring pore pressure.&quot; It requires an understanding of the hydrogeological system, the connectivity between fractures, hydraulic compartmentalization, and the transient response to external triggers such as rainfall, operations, and surface drainage.<\/span><\/p><p><span style=\"font-weight: 400;\">In this context, the belief that &quot;zero&quot; readings on a piezometer automatically equate to stable conditions is dangerous. In fractured rock, a piezometer is a point observation; the slope is a three-dimensional, anisotropic system dominated by preferential flow paths. A low reading may be genuine, but it could also be a false sense of security caused by inadequate positioning, poor local connectivity, incorrect timing windows, signal damping, or instrumentation failures. The operational risk is direct: underestimating pore pressure and recharge precisely where they most degrade effective resistance, mobilize discontinuities, and reduce the safety factor with little warning.<\/span><\/p><h2>\u00a0<\/h2><h2><b>Neutral pressure and recharging: fundamentals and practical implications.<\/b><\/h2><p><span style=\"font-weight: 400;\">Water present in fractures, discontinuities, and altered zones exerts neutral pressure (u), reducing effective stresses and, therefore, shear strength along potential rupture surfaces. In fractured rock masses, the recharge process, associated with intense rainfall, seasonal variation, operational changes, and loss of drainage efficiency, can rapidly and locally increase internal pressures, activating zones of fragility that appeared &quot;quiet&quot; under conventional monitoring.<\/span><\/p><p><span style=\"font-weight: 400;\">Two points are often underestimated. The first is that the relevant pressure is the one acting on the mechanism, not the one appearing at the instrumented point. A sensor may register u\u22480 while a persistent fracture, a fault zone, or a critical interface a few meters away is pressurized. The second is that recharging is transient and often non-linear. A rain event on a system already loaded for weeks can produce a disproportionate response, with short, localized peaks that do not appear in point readings or in sensors with low connectivity.<\/span><\/p><p><span style=\"font-weight: 400;\">Good LOP practices and ISRM recommendations reinforce that readings should be interpreted within the context of the project. This includes climatology, rainfall history, surface drainage regime, hydraulic compartmentalization, and operational evolution. The reading is an indication; the diagnosis requires a conceptual model.<\/span><\/p><h2>\u00a0<\/h2><h2><b>Fracture connectivity: flow architecture and impact on stability.<\/b><\/h2><p><span style=\"font-weight: 400;\">The geometry, extent, aperture, and interconnection of fractures determine how water circulates in the rock mass. In fractured rock, the permeability of the system is often controlled by a few dominant elements. Among these, persistent fractures, shear zones, faults, lithological contacts, and regions damaged by relief and blasting stand out.<\/span><\/p><p><span style=\"font-weight: 400;\">This scenario generates two typical behaviors that explain why &quot;zeroed out&quot; can be misleading. The first is channeling and the second is... <\/span><i><span style=\"font-weight: 400;\">bypass<\/span><\/i><span style=\"font-weight: 400;\">Water follows preferential paths and can rapidly pressurize a critical zone without passing through the sensor. The second is hydraulic compartmentalization. Drained blocks and pressurized blocks coexist. A piezometer may be in a poorly connected fracture while an adjacent compartment maintains high pressures due to hydraulic barriers, sealed veins, alteration zones, or fracture closure by stress.<\/span><\/p><p><span style=\"font-weight: 400;\">Therefore, it is common to observe low or zero readings at monitored points while evidence of active water appears elsewhere on the slope. Intermittent seepage, moisture in berms, surface piping in altered materials, channel degradation, and gully erosion are examples. When this happens, it is not randomness. It is the signature of a system dominated by connectivity and heterogeneity.<\/span><\/p><p><span style=\"font-weight: 400;\">To reduce this risk, it is recommended to complement piezometry with tools that characterize the system. Hydrogeologically oriented structural mapping, packer-type permeability tests, pumping tests, tracers, and applied geophysics can be integrated into three-dimensional interpretation.<\/span><\/p><h2>\u00a0<\/h2><h2><b>Response to rain: infiltration, hidden vulnerabilities, and transient dynamics<\/b><\/h2><p><span style=\"font-weight: 400;\">The infiltration regime in fractured rocks is controlled by the intensity and duration of precipitation, antecedent conditions, efficiency of surface drainage, and the presence of fast entry pathways. Among the most common pathways are cracks, open joints, fissured berms, transitions between rock and altered material, blast damage, and faults in channels.<\/span><\/p><p><span style=\"font-weight: 400;\">Three responses are recurrent and often overlap. Rapid recharging occurs within hours to a few days, with bypass pressure pulses rapidly reaching depths. Delayed response occurs over days to weeks, reflecting redistribution and pressurization of less connected or barrier-controlled compartments. Seasonal memory occurs over weeks to months, with accumulation of antecedent conditions and non-linear behavior in intense events.<\/span><\/p><p><span style=\"font-weight: 400;\">If the monitoring does not have adequate temporal resolution or if the sensor position does not intercept the dominant waterways, the time series may not react. This is mistakenly interpreted as an absence of hydraulic risk.<\/span><\/p><p><span style=\"font-weight: 400;\">Continuous high-resolution monitoring with telemetry, correlated with rainfall across multiple windows and other indicators, is what distinguishes a system that anticipates risk from one that merely records data. Among the complementary indicators, spring flow, drain flow rates, surface moisture, and landslides stand out.<\/span><\/p><h2>\u00a0<\/h2><h2><b>Interpretation of piezometric data: a critical and multidimensional approach.<\/b><\/h2><p><span style=\"font-weight: 400;\">A zero reading recorded by a piezometer may represent a temporary absence of hydraulic head at the monitored point. In fractured rock, however, it can also result from hydraulic disconnection of the filter from the active network, a filter installed outside the critical zone of the mechanism, a hydraulic short circuit in the borehole due to inadequate sealing, clogging by fines, chemical precipitation or biofilm, a slow sensor for a fast-response system, calibration problems, or acquisition and transmission failures.<\/span><\/p><p><span style=\"font-weight: 400;\">Robust interpretation requires triangulation. Certain signs of inconsistency should trigger an immediate review of the understanding. A &quot;calm&quot; piezometry combined with intermittent seepage after rain is one example. The same applies to low piezometry with progressive degradation of berms and drainage, or with accelerated displacement during rainy periods. There are also situations where piezometry does not correlate with rain, but correlates with operation, such as blasting, pumping, local drawdown, or changes in the drainage system. In these cases, the &quot;engine&quot; may be operational, or the signal may be contaminated.<\/span><\/p><p><span style=\"font-weight: 400;\">The common mistake is to treat an absolute number as a conclusion. The correct approach is to treat the number as evidence within a conceptual model that is continuously tested and adjusted.<\/span><\/p><h2>\u00a0<\/h2><h2><b>Time windows: monitoring the process, not just the present moment.<\/b><\/h2><p><span style=\"font-weight: 400;\">Water dynamics in fractured rock are rarely captured by a single timescale. A mature program defines and uses windows consistent with the expected behavior of the system. A practical selection includes a short timeframe, from hours to 3 days, to capture peaks by <\/span><i><span style=\"font-weight: 400;\">bypass,<\/span><\/i><span style=\"font-weight: 400;\"> Surface drainage failures and infiltration through cracks and blasting damage. It also includes a medium-term period, from 3 to 21 days, to observe redistribution, pressurization of compartments, and activation of persistent fractures and fault zones. Finally, it includes a long-term period, from 21 to 120 days, for seasonality, accumulated recharge, regime changes, and gradual degradation of drainage efficiency.<\/span><\/p><p><span style=\"font-weight: 400;\">Monitoring for periods that are too short tends to ignore key peaks, lags, and water memory. The LOP and ISRM recommendations indicate campaigns and time series that span distinct climatic conditions, with interpretation based on historical data and systematic trend analysis.<\/span><\/p><h2>\u00a0<\/h2><h2><b>Instrumentation errors: sources, impacts, and mitigation.<\/b><\/h2><p><span style=\"font-weight: 400;\">Installation and maintenance failures are not minor details. They can compromise the entire governance of decision-making. In fractured rock, some failure modes are particularly critical.<\/span><\/p><p><span style=\"font-weight: 400;\">In selection, installation, and sealing, common problems include filters being outside the active fracture or critical hydrostructural domain, excessively long reading intervals that produce an &quot;average&quot; and mask localized pressures, inadequate sealing with communication between levels and short circuits through the borehole, as well as... <\/span><i><span style=\"font-weight: 400;\">grout <\/span><\/i><span style=\"font-weight: 400;\">invading fractures and altering the regime that was intended to be measured.<\/span><\/p><p><span style=\"font-weight: 400;\">In terms of operation, response, and data, the following stand out: sensors with response times incompatible with hydraulic pulses, progressive clogging by fine particles, precipitation or biofilm, drift and poor calibration, transmission problems, and power supply issues. <\/span><i><span style=\"font-weight: 400;\">datalogger<\/span><\/i><span style=\"font-weight: 400;\">in addition to noise and offsets.<\/span><\/p><p><span style=\"font-weight: 400;\">Typical mitigation measures include rigorous installation protocols, post-installation verification, response testing, scheduled maintenance, periodic audits, and redundant instrumentation in critical areas. A key element is cross-validation with other evidence, such as seepage, drain flows, displacements, and surface drainage inspections.<\/span><\/p><h2>\u00a0<\/h2><h2><b>Hydrogeological diagnosis applied to slopes: an integrated strategy and practice.<\/b><\/h2><p><span style=\"font-weight: 400;\">The leap in maturity involves shifting the focus from &quot;monitoring sensors&quot; to &quot;monitoring the system.&quot; An applied, risk-oriented diagnosis tends to include four blocks.<\/span><\/p><p><span style=\"font-weight: 400;\"><strong>First<\/strong>, the conceptual hydrogeological and hydrostructural model of the slope, with domains, persistent fractures, faults, damaged zones, hydraulic barriers, recharge sources and preferential pathways.<\/span><\/p><p><span style=\"font-weight: 400;\"><strong>Second<\/strong>Testable hypotheses linked to instability mechanisms define where pressure is decisive for each plausible mechanism and which rainfall and operating conditions most influence the response.<\/span><\/p><p><span style=\"font-weight: 400;\"><strong>Third<\/strong>, an instrumentation network designed to capture dominant flow paths, with piezometry at strategic intervals and depths, continuous monitoring where necessary, correlation with rainfall in multiple windows, and integration with deformations and field evidence.<\/span><\/p><p><span style=\"font-weight: 400;\"><strong>Room<\/strong>Decision and governance rules, with triggers based on trend and physical consistency, not just absolute value. It also includes explicit consistency criteria, so that &quot;low piezometer&quot; is not accepted as synonymous with safety when other system signals indicate otherwise.<\/span><\/p><p><span style=\"font-weight: 400;\">Investing in applied diagnostics, based on evidence and appropriate technology, reduces risk, improves the prioritization of interventions, and strengthens operational decision-making discipline.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f82f05b elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"f82f05b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-30ac578 elementor-widget elementor-widget-text-editor\" data-id=\"30ac578\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2><b>Conclusion<\/b><\/h2><p><span style=\"font-weight: 400;\">In fractured rocks, a &quot;zero piezometer reading&quot; is only a fragment of the diagnosis. Slope stability depends on understanding connectivity, compartmentalization, recharge transients, time windows, and instrumentation quality, integrating monitoring with a conceptual model and auditable decision criteria. The error lies not in using piezometers; it lies in treating them as the final verdict in a three-dimensional, heterogeneous system governed by preferential paths.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t<div class=\"elementor-element elementor-element-2b6dda36 e-flex e-con-boxed e-con e-parent\" data-id=\"2b6dda36\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-38d87b8e elementor-widget elementor-widget-text-editor\" data-id=\"38d87b8e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Authors:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-614e77f7 e-con-full e-flex e-con e-child\" data-id=\"614e77f7\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-6a2c0da7 e-con-full e-flex e-con e-child\" data-id=\"6a2c0da7\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-74c41dd e-con-full e-flex e-con e-child\" data-id=\"74c41dd\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-83a64c4 e-con-full e-flex e-con e-child\" data-id=\"83a64c4\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4f7b2785 elementor-widget elementor-widget-image\" data-id=\"4f7b2785\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"780\" height=\"780\" src=\"data:image\/svg+xml;charset=utf-8,%3Csvg xmlns%3D&#039;http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg&#039; viewBox%3D&#039;0 0 800 800&#039;%2F%3E\" class=\"attachment-large size-large wp-image-8097 ld-lazyload\" alt=\"\" data-src=\"https:\/\/vinq.us\/wp-content\/uploads\/2025\/09\/1693149511320.jpeg\" data-srcset=\"https:\/\/vinq.us\/wp-content\/uploads\/2025\/09\/1693149511320.jpeg 800w, https:\/\/vinq.us\/wp-content\/uploads\/2025\/09\/1693149511320-300x300.jpeg 300w, https:\/\/vinq.us\/wp-content\/uploads\/2025\/09\/1693149511320-150x150.jpeg 150w, https:\/\/vinq.us\/wp-content\/uploads\/2025\/09\/1693149511320-12x12.jpeg 12w, https:\/\/vinq.us\/wp-content\/uploads\/2025\/09\/1693149511320-320x320.jpeg 320w, https:\/\/vinq.us\/wp-content\/uploads\/2025\/09\/1693149511320-760x760.jpeg 760w\" data-sizes=\"(max-width: 780px) 100vw, 780px\" data-aspect=\"1\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-4fb5a26b e-con-full e-flex e-con e-child\" data-id=\"4fb5a26b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-af34406 elementor-widget elementor-widget-heading\" data-id=\"af34406\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">John Paul dos Santos<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-37fe5b96 elementor-widget elementor-widget-text-editor\" data-id=\"37fe5b96\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Bachelor in Mining Engineering (UFMG), Master in Civil Engineering and Management (University of Glasgow), Specialist in Geotechnical Engineering and Project Management.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-254f0969 elementor-widget elementor-widget-text-editor\" data-id=\"254f0969\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Mining Engineer specializing in geotechnics and project management, an international reference in dams and geotechnical structures applied to mining.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-96197dc elementor-align-left elementor-widget elementor-widget-button\" data-id=\"96197dc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"http:\/\/www.linkedin.com\/in\/joaopaulodossantos\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-icon\">\n\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fab-linkedin\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 32H31.9C14.3 32 0 46.5 0 64.3v383.4C0 465.5 14.3 480 31.9 480H416c17.6 0 32-14.5 32-32.3V64.3c0-17.8-14.4-32.3-32-32.3zM135.4 416H69V202.2h66.5V416zm-33.2-243c-21.3 0-38.5-17.3-38.5-38.5S80.9 96 102.2 96c21.2 0 38.5 17.3 38.5 38.5 0 21.3-17.2 38.5-38.5 38.5zm282.1 243h-66.4V312c0-24.8-.5-56.7-34.5-56.7-34.6 0-39.9 27-39.9 54.9V416h-66.4V202.2h63.7v29.2h.9c8.9-16.8 30.6-34.5 62.9-34.5 67.2 0 79.7 44.3 79.7 101.9V416z\"><\/path><\/svg>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Access Linkedin profile<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-4dd09982 e-con-full e-flex e-con e-child\" data-id=\"4dd09982\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-3dc6f663 e-con-full e-flex e-con e-child\" data-id=\"3dc6f663\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-37d7ea89 e-con-full e-flex e-con e-child\" data-id=\"37d7ea89\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4b3261bf elementor-widget elementor-widget-image\" data-id=\"4b3261bf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"780\" height=\"780\" src=\"data:image\/svg+xml;charset=utf-8,%3Csvg xmlns%3D&#039;http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg&#039; viewBox%3D&#039;0 0 800 800&#039;%2F%3E\" class=\"attachment-large size-large wp-image-8089 ld-lazyload\" alt=\"\" data-src=\"https:\/\/vinq.us\/wp-content\/uploads\/2025\/09\/1558569675415.jpeg\" data-srcset=\"https:\/\/vinq.us\/wp-content\/uploads\/2025\/09\/1558569675415.jpeg 800w, https:\/\/vinq.us\/wp-content\/uploads\/2025\/09\/1558569675415-300x300.jpeg 300w, https:\/\/vinq.us\/wp-content\/uploads\/2025\/09\/1558569675415-150x150.jpeg 150w, https:\/\/vinq.us\/wp-content\/uploads\/2025\/09\/1558569675415-12x12.jpeg 12w, https:\/\/vinq.us\/wp-content\/uploads\/2025\/09\/1558569675415-320x320.jpeg 320w, https:\/\/vinq.us\/wp-content\/uploads\/2025\/09\/1558569675415-760x760.jpeg 760w\" data-sizes=\"(max-width: 780px) 100vw, 780px\" data-aspect=\"1\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-587e6956 e-con-full e-flex e-con e-child\" data-id=\"587e6956\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4e639858 elementor-widget elementor-widget-heading\" data-id=\"4e639858\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Leandro Azevedo da Silva<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3b11cff9 elementor-widget elementor-widget-text-editor\" data-id=\"3b11cff9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Bachelor in Geology (UFRRJ), Master in Mining Engineering (UFMG) and Specialist in Mineral Resources Engineering.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4871c757 elementor-widget elementor-widget-text-editor\" data-id=\"4871c757\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>A geologist with nearly 20 years of experience in geotechnics, he leads technical projects at VINQ, combining innovation and safety in mining solutions.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-61c3aff3 elementor-align-left elementor-widget elementor-widget-button\" data-id=\"61c3aff3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"http:\/\/www.linkedin.com\/in\/leandro-azevedo-da-silva-5736a8139\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-icon\">\n\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fab-linkedin\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 32H31.9C14.3 32 0 46.5 0 64.3v383.4C0 465.5 14.3 480 31.9 480H416c17.6 0 32-14.5 32-32.3V64.3c0-17.8-14.4-32.3-32-32.3zM135.4 416H69V202.2h66.5V416zm-33.2-243c-21.3 0-38.5-17.3-38.5-38.5S80.9 96 102.2 96c21.2 0 38.5 17.3 38.5 38.5 0 21.3-17.2 38.5-38.5 38.5zm282.1 243h-66.4V312c0-24.8-.5-56.7-34.5-56.7-34.6 0-39.9 27-39.9 54.9V416h-66.4V202.2h63.7v29.2h.9c8.9-16.8 30.6-34.5 62.9-34.5 67.2 0 79.7 44.3 79.7 101.9V416z\"><\/path><\/svg>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Access Linkedin profile<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>In fractured rock slopes, low piezometric readings can mask critical pressures due to connectivity and transient recharge.<\/p>","protected":false},"author":3,"featured_media":8450,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[20,62],"tags":[],"class_list":["post-8498","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-geotecnia","category-risco"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u00c1gua em Rocha Fraturada: por que piez\u00f4metro \u201czerado\u201d n\u00e3o significa talude seguro - VinQ \u00b7 Geotecnia<\/title>\n<meta name=\"description\" content=\"Em taludes de rocha fraturada, leituras piezom\u00e9tricas baixas podem mascarar press\u00f5es cr\u00edticas devido \u00e0 conectividade e \u00e0 recarga transiente.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/vinq.us\/en\/agua-rocha-fraturada-piezometro-zerado-talude\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u00c1gua em Rocha Fraturada: por que piez\u00f4metro \u201czerado\u201d n\u00e3o significa talude seguro - VinQ \u00b7 Geotecnia\" \/>\n<meta property=\"og:description\" content=\"Em taludes de rocha fraturada, leituras piezom\u00e9tricas baixas podem mascarar press\u00f5es cr\u00edticas devido \u00e0 conectividade e \u00e0 recarga transiente.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/vinq.us\/en\/agua-rocha-fraturada-piezometro-zerado-talude\/\" \/>\n<meta property=\"og:site_name\" content=\"VinQ \u00b7 Geotecnia\" \/>\n<meta property=\"article:published_time\" content=\"2026-01-13T17:06:51+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-01-26T01:30:36+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/vinq.us\/wp-content\/uploads\/2026\/01\/JANEIRO-7-1024x536.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1024\" \/>\n\t<meta property=\"og:image:height\" content=\"536\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"vinq\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"vinq\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"10 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/vinq.us\/agua-rocha-fraturada-piezometro-zerado-talude\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/vinq.us\/agua-rocha-fraturada-piezometro-zerado-talude\/\"},\"author\":{\"name\":\"vinq\",\"@id\":\"https:\/\/99.79.193.6:443\/#\/schema\/person\/4bf7c915cc64fc1813b7a22fabec09a6\"},\"headline\":\"\u00c1gua em Rocha Fraturada: por que piez\u00f4metro \u201czerado\u201d n\u00e3o significa talude seguro\",\"datePublished\":\"2026-01-13T17:06:51+00:00\",\"dateModified\":\"2026-01-26T01:30:36+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/vinq.us\/agua-rocha-fraturada-piezometro-zerado-talude\/\"},\"wordCount\":2017,\"image\":{\"@id\":\"https:\/\/vinq.us\/agua-rocha-fraturada-piezometro-zerado-talude\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/vinq.us\/wp-content\/uploads\/2026\/01\/JANEIRO-7.png\",\"articleSection\":[\"Geotecnia\",\"Risco\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/vinq.us\/agua-rocha-fraturada-piezometro-zerado-talude\/\",\"url\":\"https:\/\/vinq.us\/agua-rocha-fraturada-piezometro-zerado-talude\/\",\"name\":\"\u00c1gua em Rocha Fraturada: por que piez\u00f4metro \u201czerado\u201d n\u00e3o significa talude seguro - VinQ \u00b7 Geotecnia\",\"isPartOf\":{\"@id\":\"https:\/\/99.79.193.6:443\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/vinq.us\/agua-rocha-fraturada-piezometro-zerado-talude\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/vinq.us\/agua-rocha-fraturada-piezometro-zerado-talude\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/vinq.us\/wp-content\/uploads\/2026\/01\/JANEIRO-7.png\",\"datePublished\":\"2026-01-13T17:06:51+00:00\",\"dateModified\":\"2026-01-26T01:30:36+00:00\",\"author\":{\"@id\":\"https:\/\/99.79.193.6:443\/#\/schema\/person\/4bf7c915cc64fc1813b7a22fabec09a6\"},\"description\":\"Em taludes de rocha fraturada, leituras piezom\u00e9tricas baixas podem mascarar press\u00f5es cr\u00edticas devido \u00e0 conectividade e \u00e0 recarga transiente.\",\"breadcrumb\":{\"@id\":\"https:\/\/vinq.us\/agua-rocha-fraturada-piezometro-zerado-talude\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/vinq.us\/agua-rocha-fraturada-piezometro-zerado-talude\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/vinq.us\/agua-rocha-fraturada-piezometro-zerado-talude\/#primaryimage\",\"url\":\"https:\/\/vinq.us\/wp-content\/uploads\/2026\/01\/JANEIRO-7.png\",\"contentUrl\":\"https:\/\/vinq.us\/wp-content\/uploads\/2026\/01\/JANEIRO-7.png\",\"width\":3242,\"height\":1697},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/vinq.us\/agua-rocha-fraturada-piezometro-zerado-talude\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"In\u00edcio\",\"item\":\"https:\/\/vinq.us\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u00c1gua em Rocha Fraturada: por que piez\u00f4metro \u201czerado\u201d n\u00e3o significa talude seguro\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/99.79.193.6:443\/#website\",\"url\":\"https:\/\/99.79.193.6:443\/\",\"name\":\"VinQ \u00b7 Geotecnia\",\"description\":\"Transforma\u00e7\u00f5es de desafios em solu\u00e7\u00f5es s\u00f3lidas.\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/99.79.193.6:443\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/99.79.193.6:443\/#\/schema\/person\/4bf7c915cc64fc1813b7a22fabec09a6\",\"name\":\"vinq\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/secure.gravatar.com\/avatar\/72a06bc5ba2fb28c1b704ce1845b0849a5a7f830d9d8cbc09a7e1d67b9090c8e?s=96&d=mm&r=g\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/72a06bc5ba2fb28c1b704ce1845b0849a5a7f830d9d8cbc09a7e1d67b9090c8e?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/72a06bc5ba2fb28c1b704ce1845b0849a5a7f830d9d8cbc09a7e1d67b9090c8e?s=96&d=mm&r=g\",\"caption\":\"vinq\"},\"url\":\"https:\/\/vinq.us\/en\/author\/vinq\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"\u00c1gua em Rocha Fraturada: por que piez\u00f4metro \u201czerado\u201d n\u00e3o significa talude seguro - VinQ \u00b7 Geotecnia","description":"Em taludes de rocha fraturada, leituras piezom\u00e9tricas baixas podem mascarar press\u00f5es cr\u00edticas devido \u00e0 conectividade e \u00e0 recarga transiente.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/vinq.us\/en\/agua-rocha-fraturada-piezometro-zerado-talude\/","og_locale":"en_US","og_type":"article","og_title":"\u00c1gua em Rocha Fraturada: por que piez\u00f4metro \u201czerado\u201d n\u00e3o significa talude seguro - VinQ \u00b7 Geotecnia","og_description":"Em taludes de rocha fraturada, leituras piezom\u00e9tricas baixas podem mascarar press\u00f5es cr\u00edticas devido \u00e0 conectividade e \u00e0 recarga transiente.","og_url":"https:\/\/vinq.us\/en\/agua-rocha-fraturada-piezometro-zerado-talude\/","og_site_name":"VinQ \u00b7 Geotecnia","article_published_time":"2026-01-13T17:06:51+00:00","article_modified_time":"2026-01-26T01:30:36+00:00","og_image":[{"width":1024,"height":536,"url":"https:\/\/vinq.us\/wp-content\/uploads\/2026\/01\/JANEIRO-7-1024x536.png","type":"image\/png"}],"author":"vinq","twitter_card":"summary_large_image","twitter_misc":{"Written by":"vinq","Est. reading time":"10 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/vinq.us\/agua-rocha-fraturada-piezometro-zerado-talude\/#article","isPartOf":{"@id":"https:\/\/vinq.us\/agua-rocha-fraturada-piezometro-zerado-talude\/"},"author":{"name":"vinq","@id":"https:\/\/99.79.193.6:443\/#\/schema\/person\/4bf7c915cc64fc1813b7a22fabec09a6"},"headline":"\u00c1gua em Rocha Fraturada: por que piez\u00f4metro \u201czerado\u201d n\u00e3o significa talude seguro","datePublished":"2026-01-13T17:06:51+00:00","dateModified":"2026-01-26T01:30:36+00:00","mainEntityOfPage":{"@id":"https:\/\/vinq.us\/agua-rocha-fraturada-piezometro-zerado-talude\/"},"wordCount":2017,"image":{"@id":"https:\/\/vinq.us\/agua-rocha-fraturada-piezometro-zerado-talude\/#primaryimage"},"thumbnailUrl":"https:\/\/vinq.us\/wp-content\/uploads\/2026\/01\/JANEIRO-7.png","articleSection":["Geotecnia","Risco"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/vinq.us\/agua-rocha-fraturada-piezometro-zerado-talude\/","url":"https:\/\/vinq.us\/agua-rocha-fraturada-piezometro-zerado-talude\/","name":"\u00c1gua em Rocha Fraturada: por que piez\u00f4metro \u201czerado\u201d n\u00e3o significa talude seguro - VinQ \u00b7 Geotecnia","isPartOf":{"@id":"https:\/\/99.79.193.6:443\/#website"},"primaryImageOfPage":{"@id":"https:\/\/vinq.us\/agua-rocha-fraturada-piezometro-zerado-talude\/#primaryimage"},"image":{"@id":"https:\/\/vinq.us\/agua-rocha-fraturada-piezometro-zerado-talude\/#primaryimage"},"thumbnailUrl":"https:\/\/vinq.us\/wp-content\/uploads\/2026\/01\/JANEIRO-7.png","datePublished":"2026-01-13T17:06:51+00:00","dateModified":"2026-01-26T01:30:36+00:00","author":{"@id":"https:\/\/99.79.193.6:443\/#\/schema\/person\/4bf7c915cc64fc1813b7a22fabec09a6"},"description":"Em taludes de rocha fraturada, leituras piezom\u00e9tricas baixas podem mascarar press\u00f5es cr\u00edticas devido \u00e0 conectividade e \u00e0 recarga transiente.","breadcrumb":{"@id":"https:\/\/vinq.us\/agua-rocha-fraturada-piezometro-zerado-talude\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/vinq.us\/agua-rocha-fraturada-piezometro-zerado-talude\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/vinq.us\/agua-rocha-fraturada-piezometro-zerado-talude\/#primaryimage","url":"https:\/\/vinq.us\/wp-content\/uploads\/2026\/01\/JANEIRO-7.png","contentUrl":"https:\/\/vinq.us\/wp-content\/uploads\/2026\/01\/JANEIRO-7.png","width":3242,"height":1697},{"@type":"BreadcrumbList","@id":"https:\/\/vinq.us\/agua-rocha-fraturada-piezometro-zerado-talude\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"In\u00edcio","item":"https:\/\/vinq.us\/"},{"@type":"ListItem","position":2,"name":"\u00c1gua em Rocha Fraturada: por que piez\u00f4metro \u201czerado\u201d n\u00e3o significa talude seguro"}]},{"@type":"WebSite","@id":"https:\/\/99.79.193.6:443\/#website","url":"https:\/\/99.79.193.6:443\/","name":"VinQ \u00b7 Geotecnia","description":"Transforma\u00e7\u00f5es de desafios em solu\u00e7\u00f5es s\u00f3lidas.","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/99.79.193.6:443\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/99.79.193.6:443\/#\/schema\/person\/4bf7c915cc64fc1813b7a22fabec09a6","name":"vinq","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/secure.gravatar.com\/avatar\/72a06bc5ba2fb28c1b704ce1845b0849a5a7f830d9d8cbc09a7e1d67b9090c8e?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/72a06bc5ba2fb28c1b704ce1845b0849a5a7f830d9d8cbc09a7e1d67b9090c8e?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/72a06bc5ba2fb28c1b704ce1845b0849a5a7f830d9d8cbc09a7e1d67b9090c8e?s=96&d=mm&r=g","caption":"vinq"},"url":"https:\/\/vinq.us\/en\/author\/vinq\/"}]}},"_links":{"self":[{"href":"https:\/\/vinq.us\/en\/wp-json\/wp\/v2\/posts\/8498","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vinq.us\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vinq.us\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vinq.us\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/vinq.us\/en\/wp-json\/wp\/v2\/comments?post=8498"}],"version-history":[{"count":7,"href":"https:\/\/vinq.us\/en\/wp-json\/wp\/v2\/posts\/8498\/revisions"}],"predecessor-version":[{"id":8603,"href":"https:\/\/vinq.us\/en\/wp-json\/wp\/v2\/posts\/8498\/revisions\/8603"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vinq.us\/en\/wp-json\/wp\/v2\/media\/8450"}],"wp:attachment":[{"href":"https:\/\/vinq.us\/en\/wp-json\/wp\/v2\/media?parent=8498"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vinq.us\/en\/wp-json\/wp\/v2\/categories?post=8498"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vinq.us\/en\/wp-json\/wp\/v2\/tags?post=8498"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}