综合物探技术在堤坝隐患探测中的应用

Application of comprehensive geophysical exploration technique to hidden trouble detection of dyke

本文给出笔者参与的浙江温岭东浦新塘隐患探测、椒江外沙海塘渗漏探测、缙云白马水库和玉环里墩水库坝体渗漏探测等几个实例,详细说明了综合物探技术在堤坝隐患探测中的作用、优点和需要注意的问题,具体分析了堤坝隐患的不同特征和综合物探方法的特点.工作实践表明:高密度电阻率法、探地雷达法、瑞雷波法及其综合运用能有效探测坝体缺陷,查明渗漏原因.同时,由于每种方法各有应用前提及局限性,故应针对可能的隐患特征,选用合适的探测方法及其组合,并努力提高信号采集和处理解释水平.

The article presents several examples of detecting sea dyke and reservoir dam bodies, such as hidden trouble detection of DongPuXinTang in Wenling, leakage detection of Waisha Sea dyke in Jiaojiang, leakage detection of dam bodies at Baima reservoir in Jinyun,and Lidunin reservoir in Yuhuan of Zhejiang Province, It explains the action, virtue and some important problems of comprehensive geophysical exploration technique to hidden trouble detection of dyke in detail, analyses different characteristics of hidden trouble of dyke and the feature of comprehensive geophysical exploration technique. According to the detecting examples, we find that the methods of high-density resistivity, GPR,rayleigh wave and their synthetical application, could detect hidden trouble of dyke and find the reason of leakage. Because every method has its application prerequisite and limitation, we must based on the characteristics of pos- sible hidden trouble of dyke, to take suitable detecting method and its combination, raise the signal collecting and managing level.