摘要
为有效预测地质组成,准确分析地质材料的综合属性,合理判断地质灾害发生的概率,根据岩溶塌陷的发生原因,提出了将电磁场法和高密度电阻法综合的物探方法。利用综合物探方法对某地的施工区域进行地质探测,得到该地一些岩溶密度、承受压力和基地摩擦系数等物理属性,并与文献记载的物理数值进行对比分析给出,该地地层中岩溶主要包括松软泥土、黏土、泥质白云岩和白云质灰岩。研究结果对地质勘探和灾害预防具有一定参考价值。
Due to the frequent occurrence of geological disasters caused by karst collapse,the current high-intensity construction operations exacerbate the frequency of geological disasters.To effectively predict the geological composition,accurately analyze the comprehensive properties of geological materials,and seek a reasonable method to determine the probability of geological disasters,a geophysical exploration method combining electromagnetic field method and high-density resistivity method is proposed based on the causes of karst collapse.Using comprehensive geophysical methods to conduct geological exploration of a construction area in a certain place,some physical properties such as karst density,bearing pressure,and base friction coefficient are obtained.After comparing with the physical values recorded in the literature,it is found that the geophysical prospecting method can accurately detect the composition of karst in the formation,mainly soft soil,clay,muddy dolomite,and dolomite limestone.The research results can be used as a reference for geological exploration and disaster prevention.
作者
张赞萍
ZHANG Zanping(The Fourth Geological and Mineral Survey Institute of Henan Bureau of Geologyand Mineral Exploration and Development,Zhengzhou 450000,China)
出处
《现代应用物理》
2023年第4期205-212,共8页
Modern Applied Physics
关键词
岩溶塌陷
物探方法
物理属性
岩溶结构
karst collapse
geophysical prospecting method
physical property
karst structure
