Application of frequency electromagnetic sounding method in detection of rock fracture zone in dam foundation

LI Teng; YANG Siyun

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Application of frequency electromagnetic sounding method in detection of rock fracture zone in dam foundation

更新时间：2026-07-09

- Application of frequency electromagnetic sounding method in detection of rock fracture zone in dam foundation
- Vol. 0, Issue 2, (2026)
- 作者机构：
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  CLC： TV698
- Online First：03 July 2026，
  
  Published：2026
- 稿件说明：
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李腾, 杨斯允. 频率电磁测深法在坝基岩体破碎带探查中的应用[J]. 大坝与安全, 2026, 0(2): 42-.

LI Teng, YANG Siyun. Application of frequency electromagnetic sounding method in detection of rock fracture zone in dam foundation[J]. 2026, 0(2).
李腾, 杨斯允. 频率电磁测深法在坝基岩体破碎带探查中的应用[J]. 大坝与安全, 2026, 0(2): 42-. DOI：

LI Teng, YANG Siyun. Application of frequency electromagnetic sounding method in detection of rock fracture zone in dam foundation[J]. 2026, 0(2). DOI：

摘要

坝基渗漏问题是决定大坝能否长期稳定运行的关键因素，而坝基岩体破碎带往往是产生坝基渗漏的直接原因。以挂钟岭水库大坝物探勘察工作为例，以频率电磁测深法为物探手段，探查拟建场地内岩体破碎带分布情况。与后序钻孔取样结果对比显示，频率电磁测深法在探查坝基岩体破碎带方面具有较高的精度，可以为坝基防渗处理方案的设计工作提供可靠的依据。

Abstract

The seepage issue of dam foundation is a critical factor determining whether the dam can op_ erate stably in long term. The rock mass fracture zone in dam foundation is often the direct cause of seep_ age. Taking the geophysical investigation work of the dam in Guazhongling reservoir as an example

the frequency electromagnetic sounding method is adopted. By comparing with subsequent drilling and sam_ pling results

the result shows that the frequency electromagnetic sounding method has high accuracy in detecting rock fracture zones in dam foundation

which can provide reliable evidence for the design of seepage prevention treatment plans for dam foundation.

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