高精度重力在城市地下空间探测研究中的应用  

Application of high precision gravity in the research of urban underground space exploration

作　　者：徐燕君 陈明 伍卓鹤 张轩国 Xu Yanjun;Chen Ming;Wu Zhuohe;Zhang Xuanguo(Center for Guangzhou Municipal Investment Project Research and Evaluation,Guangzhou 510000,Guangdong,China;Guangdong Geological and Geophysical Engineering Investigation Institute,Guangzhou 510000,Guangdong,China)

机构地区：[1]广州市政府投资项目研究评审中心,广东广州510000 [2]广东省地质物探工程勘察院,广东广州510000

出　　处：《地质学刊》2021年第4期425-432,共8页Journal of Geology

基　　金：广州市2019年度科学研究计划项目“城市地下空间探测技术研究”(2019-03-01-14-1008-0001)。

摘　　要：城镇城市化与城市地下空间开发给高精度重力探测技术的发展带来了良好机遇,从重力探测设备、高密度数据采集、精细数据处理和解释应用等方面介绍了高精度重力在城市地下空间探测研究应用取得的成果,包括重力仪精度及在干扰情况下的读数时间、三维坐标获取、地形改正方法、异常数据计算、反演方法及成果解释等,可对城市进行无损探测获取地下地质结构及特殊地质体分布信息,同时满足城市绿色环保勘探的要求,为城市空间探测挖掘重要地质信息提供了一种新的方法技术。Urbanization and underground space utilization provide a good opportunity to the development of high-precision gravity detection technology.This paper introduces the application of high precision gravity detection technology in urban underground space detection from the viewpoint of gravity detection equipment,intensive data acquisition,data processing and interpretation.It specifies the accuracy of gravimeter and its reading time in case of interference,the acquisition of 3D coordinates and its correction method for terrain,the calculation of abnormal data,the technique of inversion and result interpretation,etc.It can be used for non-destructive detection of urban underground geological structure and distribution of special geological bodies.As an urban green and environmentally friendly method for exploration,it can be seen as a new method to extract the important geological information of urban space detection.

关 键 词：城市地下空间 高精度重力测量 高密度 地形改正 正反演技术 成果解释 

分 类 号：P631.123[天文地球—地质矿产勘探]