黄河泛滥平原第四系地面塌陷机理研究--以菏泽市牡丹区为例  

Analysis on the Mechanism of Quaternary Ground Collapse Induced by Ancient Human Activity Relics in the Yellow River Flood Plain--Taking Mudan District in Heze City as an Example

作　　者：王华锋[1] 马龙[1] 孟凡奇 张勇 梁文继 亓贞才 贾琛[1] 张晓飞 陈洪海[1] 张晔 WANG Huafeng;MA Long;MENG Fanqi;ZHANG Yong;LIANG Wenji;QI Zhencai;JIA Chen;ZHANG Xiaofei;CHEN Honghai;ZHANG Ye(Shandong Provincial Lu'nan Geology and Exploration Institute(Shandong Provincial Bureau of Geology and Mineral Resources No.2 Geological Brigade),Shandong Ji’ning 272000,China;Shandong Monitoring Center of Geological Environment,Shandong Ji'nan 250014,China;CGC Geological and Mineral Construction Co.,Ltd,Shandong Ji'nan 250013,China)

机构地区：[1]山东省鲁南地质工程勘察院(山东省地质矿产勘查开发局第二地质大队),山东济宁272000 [2]山东省国土空间生态修复中心,山东济南250014 [3]中地地矿建设有限公司,山东济南250013

出　　处：《山东国土资源》2024年第11期12-17,共6页Shandong Land and Resources

基　　金：菏泽市牡丹区自然资源局,项目名称:菏泽市牡丹区地质灾害风险普查,编号:HZSMDCGF2021-026。

摘　　要：本文以菏泽市牡丹区地质灾害风险普查为依托,从牡丹区已发生的24处第四系地面塌陷中选取9处塌陷点进行分析,并优选了1处塌陷通过高密度电阻率法、地质雷达、钻探、原位测试、分析化验等方法对其形成机理进行了研究。通过综合物探查出视电阻率低阻异常区,在异常区经钻探验证,并取样分析,在原塌陷坑处的物理力学性质明显比周围差。经研究分析可知:第四系地面塌陷的主要原因是由于原地下存在着建(构)筑物,当发育于全新世的黄河古河道改道时,掩埋了原建(构)筑物,形成了空洞,当受到地下水位波动频繁等外力作用时,打破了古建(构)筑物的应力平衡,当持力层遭到破坏后,便发生了第四系地面塌陷。Based on geological hazard risk survey in Mudan district in Heze city,selecting 9 collapse points from 24 ground collapses in Quaternary and one collapse point,by using high-density resistivity method,geological radar,drilling,in-situ testing,analysis and laboratory testing,the formation mechanism of the collapse have been studied.Through comprehensive exploration,a low resistance anomaly area with apparent resistivity has been identified.Through drilling verification and sampling analysis in the anomaly area,it is found that physical and mechanical properties at the original collapse pit are significantly worse than those around it.Through research and analysis,it can be concluded that main cause of ground collapse in Quaternary system is the presence of buildings underground.When the ancient Yellow River channel developed in the Holocene changed course,it buried the original buildings(structures)and formed voids.When subjected to frequent fluctuations in groundwater level and other external forces,the stress balance of the ancient buildings(structures)was broken.When the bearing layer was destroyed,the Quaternary ground collapse occurred.

关 键 词：高密度电阻率法 地质雷达 第四系地面塌陷 应力平衡 形成机理 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]