摘要
基于堤坝病险加固过程中所采用的高聚物防渗墙具有绝缘性和不透水性,提出一种无损检测高聚物防渗墙完整性方法——电位映像法,该方法利用墙体对堤坝表面电场重分布的影响规律来判别墙体是否存在缺陷。通过开展墙体施工前后、不同墙体深度以及墙体存在缺陷时的数值模拟试验和现场试验,结果表明:电位映像法具有快速高精度等特点,是一种检测高聚物防渗墙完整性的有效方法。
Based on the insulation and impermeability of the polymer impervious wall used in the reinforcement process of dangerous dam,a method for non-destructive testing of the integrity of the polymer impervious wall-potential imaging method-is proposed,and this method uses the influence of the wall on the redistribution of the electric field on the surface of the dam to determine whether the wall has defects.Through carrying out the numerical simulation test and field test before and after the wall construction,at different wall depths and when the wall has defects,the results show that the potential imaging method has the characteristics of high speed and high precision,and it is an effective method to detect the integrity of high polymer impervious wall.
作者
李延卓
李姝昱
梁小勇
Li Yanzhuo;Li Shuyu;Liang Xiaoyong(Yellow River Institute of Hydraulic Research,Yellow River Conservancy Commission,Zhengzhou 450003,China;Huanghe Horun Engineering Design Co.,Ltd.,Yinchuan 750000,China)
出处
《山西建筑》
2023年第3期186-188,共3页
Shanxi Architecture
基金
黄河水利科学研究院基本科研业务费专项项目:基于LEC法的堤防险工险段安全风险评估方法研究(HKY-JBYW-2021-10)。
关键词
堤坝
电位映像法
电场分布
dykes and dams
potential imaging method
electric field distributions
