防空洞物探方法探测效果对比分析  

Comparison and analysis of detection effect of geophysical methods in air-raid shelter

作　　者：李亮 汶小岗 王辉 乔会 LI Liang;WEN Xiaogang;WANG Hui;QIAO Hui(Shaanxi Coalfield Geophysical Surveying and Mapping Co. ,Ltd. ,Xi’an 710005,China;Key Laboratory of Coal Exploration and Comprehensive Utilization,Ministry of Natural Resources,Xi’an 710026,China)

机构地区：[1]陕西省煤田物探测绘有限公司,陕西西安710005 [2]自然资源部煤炭资源勘查与综合利用重点实验室,陕西西安710026

出　　处：《陕西煤炭》2021年第6期68-72,共5页Shaanxi Coal

基　　金：城市地下空洞微动探测技术研究(SMDZ-2019CX-10)。

摘　　要：未知防空洞的存在给城市建设带来安全隐患,目前地下空洞探测以地质调查、工程钻探、地球物理勘探为主,辅以变形观测、水文试验等。针对西安市东郊某厂区防空洞进行物探方法探测,选取的主要物探方法有浅层地震勘探、高密度电法勘探和微动探测。由于防空洞一般埋深较浅,数据采集时均采用小道距,以提高浅部分辨率,并对浅层地震勘探、高密度电法勘探和微动探测效果进行对比。分析表明,高密度电法和微动探测对未知防空洞探测效果较好,采用高密度电法和微动探测结合进行防空洞探测可以提升物探成果精度,以此为类似工程问题提供借鉴。The existence of unknown air-raid shelters brings safety hazards to urban construction.At present,underground cavern detection mainly focuses on geological survey,engineering drilling and geophysical exploration,supplemented by deformation observation and hydrological test.For the detection of air-raid shelter in a factory in the eastern suburb of Xi’an,the main geophysical methods include shallow seismic exploration,high-density electrical exploration and fretting detection.Due to the shallow buried depth of air-raid shelters,small track spacing is used in data acquisition to improve the shallow resolution,and the effects of shallow seismic exploration,high-density electrical exploration and fretting detection are compared.The results show that high-density electrical method and fretting detection have better detection effect on unknown air-raid shelter.Therefore,the combination of high-density electrical method and fretting detection can improve the accuracy of geophysical exploration results,so as to provide reference for similar engineering problems.

关 键 词：防空洞 浅层地震勘探 高密度电法勘探 微动探测 

分 类 号：TB22[天文地球—大地测量学与测量工程] P631[一般工业技术—工程设计测绘]