天然示踪法在贮灰场土坝渗漏探测中的应用  

Application of natural tracer method to leakage detection for ash field earth dam

作　　者：王新建[1] 陈建生[1] 陈亮[1] 

机构地区：[1]河海大学岩土工程研究所,江苏南京210098

出　　处：《水利水电科技进展》2005年第6期67-71,74,共6页Advances in Science and Technology of Water Resources

基　　金：国家自然科学基金资助项目(50179009);国家自然科学基金重点资助项目(50139030)

摘　　要：简述天然示踪法的概念、地下水温度场和电导场分布特征、热源法原理及电导渗漏测试原理.分析某贮灰场土坝垂向和水平温度分布特征、电导水平分布特征,并利用渗漏探测虚拟热源法模型,计算出该土坝的集中渗漏通道的空间位置、展布特点、范围大小和渗漏强度,为堤坝渗漏治理提供科学依据.A brief introduction was given to the concept of natural tracer method, the characteristics of temperature and conductance distribution in groundwater, and the theory of heat-souree method and conductance method for leakage detection. The characteristics of temperature distribution in vertical and horizontal directions and the conductance distribution in horizontal direction in an earth dam were analyzed, and the locations, distribution characteristics, ranges, and leakage rate of main leakage passages of the dam were calculated by use of the virtual heat-souree method presented in this paper, The result of study provides a scientific basis for dam leakage control.

关 键 词：天然示踪法 土坝 渗漏 温度场 电导 虚拟热源法 

分 类 号：TV698.12[水利工程—水利水电工程]