Application of Geological Radar and High Density Electrical Method in Urban Underground Potential
Risks Detection
夏培 XIA Pei
（武汉市测绘研究院，武汉 430022）
（Wuhan Geomatics Institute，Wuhan 430022，China）
摘要： 随着城市工程建设对地下空间的开发力度增大，需要对地下隐患进行准确定位，指导工程安全施工和危害预防。基于地质雷达和高密度电阻率法综合物探，针对同一工区探测地下空间存在的空洞、脱空、疏松体、废弃人防等隐患。结果表明：地质雷达分辨率高，适合探测浅层小型空洞，不适用于大范围的含水结构探测；高密度电法适合具有目标指向性的精细探测，对于含水结构的探测敏感性高，适用于大体积深度较深的含水空洞探测；两种物探方法有效组合，能够准确探测隐患位置。
Abstract: With the increasing development of underground space in urban engineering construction, it is necessary to accurately locate underground potential risks to guide safe construction and hazard prevention. Based on integrated geophysical prospecting of geological radar and high-density resistivity, it can detect potential risks such as cavities, voids, loose soil, and abandoned civil air defenses in the underground space in the same work area. The result shows: geological radar has high resolution and is suitable for detecting shallow small cavities, but not suitable for large-scale water-bearing structure detection; high-density electrical method has high sensitivity to the detection of water-bearing structures, is suitable for fine detection with target directivity and detection of large volume and deep water-bearing cavities; the effective combination of these two geophysical methods can accurately detect the location of potential risks.
关键词： 高密度电法；地质雷达；空洞探测；地下人防；综合物探
Key words: high-density electrical method；geological radar；cavity detection；integrated geophysical prospecting；underground civil air defense
中图分类号：P631 文献标识码：A 文章编号：1006-4311（2022）22-145-04
DOI:10.3969/j.issn.1006-4311.2022.22.048.
文章出处：夏培. 地质雷达和高密度电法在城市地下隐患探测中的应用[J]. 价值工程,2022,41(22):145-148.
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