本文選題：南水北調(diào) + 音頻大地電磁法�。� 參考：《地球物理學(xué)進(jìn)展》2017年03期

【摘要】：針對山區(qū)長埋深隧洞勘測技術(shù)的研究,是近年來我國隧洞地質(zhì)勘查中的研究熱點(diǎn),然而傳統(tǒng)的鉆探等手段在多山區(qū)域有很大的局限性,因此,近些年來地球物理勘探方法逐漸面向工程勘探,而單一的物探方法往往在異常判斷方面存在局限性,鑒于此在工程勘探中往往運(yùn)用多種地球物探方法相結(jié)合,可以在一定程度上減小了單一物探方法的多解性,提高物探解釋的質(zhì)量以及精度.本文以南水北調(diào)某工程為例,在某受水段分別布置了大地電磁法、地震淺層反射物探方法,其中大地電磁法主要用于輔助查明隧洞覆蓋層厚度、地層巖性、隱伏構(gòu)造、地下水位等工程地質(zhì)條件,地震淺層反射用于查明小規(guī)模的地質(zhì)構(gòu)造(小斷層、溶洞等)的勘查,經(jīng)過這兩種方法的結(jié)合,有效的查明了工程受水區(qū)的基本地質(zhì)情況.
[Abstract]:In recent years, the research on the investigation technology of long buried tunnel in mountainous area is a hot topic in the tunnel geological exploration in China. However, the traditional drilling methods have great limitations in mountainous areas. In recent years, geophysical exploration methods have been gradually oriented to engineering exploration, but single geophysical exploration methods often have limitations in anomaly judgment. In view of the fact that many geophysical methods are often used in engineering exploration, It can reduce the multi-solution of single geophysical exploration method to some extent, and improve the quality and precision of geophysical exploration interpretation. Taking a project of South-to-North Water transfer as an example, magnetotelluric method and seismic shallow reflection geophysical exploration method are arranged in a certain water receiving section, in which magnetotelluric method is mainly used to assist in determining the thickness of the tunnel overburden, the lithology of the strata, and the concealed structure. The seismic shallow reflection is used to find out the exploration of small scale geological structure (small fault, cave, etc.). Through the combination of these two methods, the basic geological conditions of the engineering water-receiving area are effectively ascertained.
【作者單位】： 長安大學(xué)地質(zhì)工程與測繪學(xué)院;甘肅省電力設(shè)計院;
【分類號】：P631;U452.11

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