微动探测方法和高密度电法在地灾调查评价中的综合应用  

Integrated application of micromotion detection methods and high-density electrical methods in the investigation and evaluation of geohazards

作　　者：李婧 杨小明 秦长春 Li Jing;Yang Xiaoming;Qin Changchun(Second Comprehensive Geophysical Exploration Brigade Co.,Ltd of Shaanxi Geological and Mineral,Xi'an 710016)

机构地区：[1]陕西地矿第二综合物探大队有限公司,西安710016

出　　处：《陕西地质》2024年第1期76-81,共6页Geology of Shaanxi

摘　　要：随着物探技术方法在地质灾害调查评价中应用越来越广泛,对其物探方法的选择即决定了探测效果的好坏。近年来,迅速发展起来的微动探测方法将环境噪声作为信号源,实现了将干扰信号变废为宝,具有抗干扰能力强、施工条件受限少等优势;高密度电法因采样密度高、叠加观测,具有观测精度和分辨率高的特点。本文从实际出发,将微动探测方法和高密度电法综合应用于延安宝塔区地质灾害风险调查评价项目中,工程钻探验证结果显示,该两种方法综合对比研究推断的结果准确可靠,说明了微动探测方法和高密度电法在地灾调查评价中综合应用的可行性和有效性,具有一定的借鉴意义。The utilization of physical exploration technology in the assessment of geological hazards is contingent upon the selection of a suitable detection method.In recent years,the micromotion detection method,which employs environmental noise as a signal source to transform interference into valuable data,has gained popularity due to its strong anti-interference capabilities and minimal construction restrictions.In contrast,the high-density electric method,with its high observation accuracy and resolution resulting from its high sampling density and superimposed observations,offers several distinct advantages.In this study,the micromotion detection method and high-density electric method were jointly applied to geological disaster risk assessment projects in Baota District,Yan'an.The results of the engineering drlling verification confirm the accuracy and reliability of the conclusions derived from the comprehensive comparative study,thereby validating the feasibility and practicality of integrating these two methods in the investigation and assessment of geological disasters and providing a useful reference for future research.

关 键 词：微动探测方法 高密度电法 视速度:视电阻率 

分 类 号：P641.54[天文地球—地质矿产勘探]