综合物探方法在某抽水蓄能电站库址勘察中的应用对比  

Application of Integrated Geophysical Exploration Method to a pumped storage power station

作　　者：习肖伟 贾金典 韩艳军[1] 张雷[1] 要悦稳 XI Xiaowei;JIA Jindian;HAN Yanjun;ZHANG Lei;YAO Yuewen(Geophysical Exploration Academy of China Metallurgical Geology Bureau,Baoding 071051,Hebei province,China)

机构地区：[1]中国冶金地质总局地球物理勘查院,河北保定071051

出　　处：《地质找矿论丛》2025年第1期129-134,共6页Contributions to Geology and Mineral Resources Research

摘　　要：为解决抽水蓄能电站预可行性研究阶段库址勘察中遇到的不同工程地质问题,采用高密度电阻率法、音频大地电磁法(AMT)、微动探测等3种物探方法,对库区同1条剖面进行探测,分析对比探测结果,并评判其有效性。对比发现:高密度电法可以弥补AMT在浅部横向分辨率不高的不足,该2种方法配合使用能取得更好的探测效果;AMT对于探明深部可能存在的断层、破碎带或其他不良地质体有着绝对的优势;微动探测在抽水蓄能电站库坝选址勘查中,能够准确区分基覆层,可选择性地用于查明上下水库坝轴线、上下水库进出水口处覆盖层厚度、基岩面分布形态并进行风化分层。In order to solve different engineering geological problems encountered during the pre-feasibility study stage of pumped storage power stations high-density resistivity,AMT,and Microtremor Survey are integrated to explore the same profile of the reservoir area and the results compared and analyzed,and their effectiveness evaluated showing that high-density electrical method can compensate for the low lateral resolution of AMT at shallow depth.Combination of the two methods can achieve better results.AMT has an absolute advantage in identifying potential faults,fractured zones,or other unfavorable geological bodies to depth.Microtremor Survey can accurately distinguish the foundation cover layer in the site selection survey of pumped storage power station dams,determine the axis of the upper and lower reservoir dams selectively and the thickness of the cover layer at the inlet and outlet of the upper and lower reservoirs,morphological distribution of the bedrock surface and the weathering layer.

关 键 词：抽水蓄能电站库址勘察 高密度电阻率法 音频大地电磁法(AMT) 微动探测 

分 类 号：P631[天文地球—地质矿产勘探]