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April 21, 2026SHILAP Revista de lepidopterologíaOpen Access

Electrical resistivity tomography with combined arrays for shallow karst collapse hazard identification in Fuchuan, Guangxi, China

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Authors

CGChunlei GeDLDingguo LiaoYYYang Yang

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Overview

Investigation combines electrical resistivity methods to identify karst hazards, suggesting improved safety for local engineering projects.

Key Points

  • The research aims to identify subsurface karst structures and delineate collapse hazard zones in Fuchuan, Guangxi.
  • Applied high-density electrical resistivity tomography using Wenner, Schlumberger, and combined arrays.
  • Conducted field surveys with 5 m electrode spacing across four parallel lines.
  • Validated ERT results against borehole data and resistivity depth curves.
  • The Wenner array found a broad low-resistivity karst anomaly with a depth of 30 m.
  • The Schlumberger array identified a narrower anomaly with deeper resolution at 25 m.
  • Combined arrays improved detection accuracy, revealing eight hazard zones with 92% consistency to borehole data.

Cite This Study

Ge et al. (2026) studied this question.

synapsesocial.com/papers/69e7132bcb99343efc98ce63https://doi.org/10.3389/feart.2026.1754514
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Integrated ERT and Microtremor (SPAC) Survey for Shallow Karst Detection in a Noisy Corridor: Drilling Verification and Risk Zoning2026
  2. 2Challenges in the Detection of Water-Filled Cavities in Karst Environments Using Electrical Resistivity Tomography2025
  3. 3Karst distribution characteristics in a watershed under topographic differentiation and implication for groundwater resource: A case study in Southwest China using ERT and borehole data2026
  4. 4Identification of an air-filled collapse by using ERT and SRT geophysical methods. A case study from Latvia2024
  5. 5Underwater ERT method to image Karst cave distribution below the river water2024