应用水力层析法对渗漏通道进行成像  

Imaging Leakage Passage Using Hydraulic Tomography

作　　者：陈晓瑞[1] 陈小林[1] 赵帅军[2] 

机构地区：[1]河海大学岩土工程研究所,南京210098 [2]后勤工程学院,重庆401331

出　　处：《河南科学》2015年第6期970-976,共7页Henan Science

基　　金：河海大学中央高校基本科研业务费专项资金项目资助(2012B02314);中国博士后科学基金资助项目(2012M511193);江苏省博士后科研资助计划项目(1102073C);高等学校博士学科点专项科研基金(20120094120015)

摘　　要：精确探测含水层渗漏通道,对堤坝安全防治起着重要的作用.通过对含水层进行数值抽水实验,应用水力层析法对渗漏通道进行成像.建立一个20 m×20 m的二维饱和渗漏含水层,整个含水层共有三口斜井.在渗漏通道和斜井的相交处分别进行抽水实验,在观测点收集水头响应数据,应用SSLE算法对含水层渗透性进行估计.实验研究证明,水力层析法结合SSLE算法,能够准确地识别含水层渗漏通道分布;非稳定流条件下的成像比稳定流条件下的清晰;地质资料齐全情况下的成像比地质资料缺乏情况下的清晰.Leakage passages are found to dominate the dam safety. In this paper,we have applied hydraulic tomography technology to image the leakage passages. The leakage hypothetical aquifer is a two-dimensional vertical domain of 20 m ×20 m with three inclined boreholes. We assume that three inclined boreholes are installed in the domian to estimate leakages of the aguifer by using SSLE（Sequential Successive Liner Estimator）. The experiments demonstrate that the hydraulic tomography with SSLE can precisely detect the leakage passage distribution. The imaging results of transient state are better than steady state. The more complete data are be given ,the better results would be acquired.

关 键 词：水力层析法 稳定流 非稳定流 渗漏通道 成像 

分 类 号：TU441[建筑科学—岩土工程]