多维雷达结合瞬变电磁法在海塘隐患探测中的应用  

Application of Multi-dimensional Radar Combined with Transient Electromagnetic Method in the Detection of Hidden Dangers in Seawalls

作　　者：余延芬 王海礼 胡海忠 杨瑞东 YU Yanfen;WANG Haili;HU Haizhong;YANG Ruidong(Zhejiang Qiantang River Basin Management Center,Hangzhou 310016,Zhejiang,China;Survey and Design Institute of Zhejiang Qiantang River Management Bureau,Hangzhou 310016,Zhejiang,China)

机构地区：[1]浙江省钱塘江流域中心,浙江杭州310016 [2]浙江省钱塘江管理局勘测设计院,浙江杭州310016

出　　处：《浙江水利科技》2023年第5期21-26,共6页Zhejiang Hydrotechnics

基　　金：浙江省水利科技项目(RC2205)。

摘　　要：海塘是重要的防洪御潮工程,其隐患探测是水利工程的一个重要课题。在现有地球物理探测方法中,结合钱塘江海塘特点,进一步对海塘隐患探测技术设备参数进行比选。为提高海塘隐患探测结果的准确性,将多维地质雷达和瞬变电磁法相结合,全面排查目标段海塘空洞、脱空、疏松、富水体等隐患,并依托现有工程进行试验检测、开挖验证,建立较为完善的海塘隐患探测体系,总结形成一套无损、准确、高效、低成本的海塘隐患综合物理探测方法。Seawalls are an important kind of tide control projects,and the hidden danger detection is an important subject of hydraulic engineering.Considering the characteristics of the seawalls of the Qiantang River,a comparative study is carried out on the selection of technical equipment among the existing geophysical exploration methods for the detection of hidden dangers in the seawalls.Multi-dimensional geo-radar and TEM are used for mutual verification and analysis,so as to improve the accuracy of detection results of hidden dike hazards,comprehensively investigate hidden hazards of seawalls in the target section,such as cavity,void,loose and eutrophicated water,etc.Based on test detection and excavation verification of existing projects,a relatively complete seawall hidden danger detection system is established,and a set of non-destructive,accurate,efficient and low-cost detection methods suitable for seawall detection is summarized.

关 键 词：海塘工程 探地雷达 瞬变电磁法 水工构筑物 

分 类 号：P631[天文地球—地质矿产勘探] U656.314[天文地球—地质学]