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重庆交通大学学报（自然科学版）

重庆交通大学学报（自然科学版） ›› 2009, Vol. 28 ›› Issue (6): 1097-1101.DOI: 10.3969/j.issn.1674-0696.2009.06.31

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电阻率成像技术在土石坝渗漏诊断中的应用

赵明阶,徐??容,王俊杰,王??朋   

  1. 重庆交通大学河海学院,重庆400074
  • 收稿日期:2009-09-07 修回日期:2009-10-15 出版日期:2009-12-15 发布日期:2015-04-15
  • 作者简介:赵明阶(1967—),男,四川广元市人,教授,博士生导师,主要从事岩土及水工结构工程教学与科研工作。E-mail:m..jzhao@163.com。
  • 基金资助:
    国家自然科学基金项目( 50779081); 重庆市科技攻关项目( CSTC2007AC6037)

Application?of?Electrical?Resistivity?Tomography?to?Leakage??Diagnosis?of?Earth?Rock-Fill?Dam

ZHAO Ming-jie, XU Rong, WANG Jun-jie, WANG Peng   

  1. School?of?River?＆?Ocean?Engineering,?Chongqing?Jiaotong?University,?Chongqing?400074,?China
  • Received:2009-09-07 Revised:2009-10-15 Online:2009-12-15 Published:2015-04-15

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摘要： 为了能较准确诊断土石坝渗漏部位,基于介质电阻率参数对水较为敏感这一特性,将电阻率层析成像技术应 用于大林病险水库土石坝渗漏的诊断测试中,查明了扩建坝体黏土斜墙331??50m高程以上部分坝体及左岸岩体 中存在的渗漏通道,同时原均质土坝在高程329??0m以上的近右坝肩存在渗漏隐患。依据诊断结果提出了该病险 水库加固设计方案中需将331??50m以上坝体挖除、防渗帷幕向左岸延伸61m以及置换原均质土坝在高程329??0 m以上的近右坝肩部分坝体等建议。为保证大林病险水库除险加固的顺利实施提供了科学依据。

关键词: 电阻率成像, 土石坝, 渗漏诊断

Abstract: In?order?to?make?a?more?accurate?diagnosis?of?leakage?position,?the?resistivity?tomographic?technology?is?used?in?the?leakage?diagnosis?of?earth?rock-fill?dam?at?Dalin?reservoir,for?the?resisitivity?parameters?of?medium?are?sensitive?to?the?water.?The?results?of?field?investgation?show?that,?there?are?seepage?flows?located?above?the?part?of?331.5?m?at?the?extended?earth?rock-fill?dam?and?the?left?bank?part?of?the?dam?;?at?the?same?time,?there?is?seepage?potential?located?above?329.?0?m?at?the?fight?bank?part?of?homogeneous?earth?dam.?The?reinforced?methods?are?proposed?according?to?the?diagnosis?results,?including?replacing?earth-rock?matierials?located?above?331.5?m?and?329.?0?m?at?the?right?bank?part?of?homogeneous?earth?dam,?constructing?a?61?m?length?impermeable?barrier?and?so?on,?which?provide?scientific?basis?for?the?repairment?and?reinforcement?of?earth?rock-fill?dam?of?Dalin?reservoir

Key words: electrical resistivity tomography , earth rock-fill dam , leakage diagnosis

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