综合物探技术在盾构隧道基岩段的应用  

Application of Comprehensive Geophysical Prospecting Technology in the Bedrock Section of Shield Tunnel

作　　者：陈达 刘静 王绎栋 CHEN Da;LIU Jing;WANG Yidong(Zhejiang Huazhan Engineering Research and Design Institute Co.,Ltd.,Ningbo,Zhejiang 315012)

机构地区：[1]浙江华展工程研究设计院有限公司,浙江宁波315012

出　　处：《都市快轨交通》2023年第5期32-37,92,共7页Urban Rapid Rail Transit

基　　金：国家自然科学基金(41877283)。

摘　　要：为了查明盾构隧道基岩浅埋段各种不良地质作用的分布特征,通过采用高密度电阻率法、浅层地震折射波法、微动勘探法等综合物探技术,对隧道基岩埋深、断裂破碎带及孤石等异常地质状况进行探测及研究。综合比较三种物探手段,结合钻探、地质调查成果,对复合地层进行有效划分,并对盾构选型设计和施工措施提出针对性建议。To investigate the distribution characteristics of various adverse geological effects in a shallow buried section of a shield tunnel in bedrock,a comprehensive geophysical exploration technique was employed,including high-density resistivity,shallow seismic reflection wave,and microtremor exploration methods.Anomalous geological conditions such as the depth of the bedrock,fractured and fragmented zones,and isolated stones were detected and studied.By comparing and analyzing the results of the three geophysical methods and combining them with drilling and geological investigation results,the complex strata were effectively divided,and targeted suggestions were proposed for the selection and design of tunnel shields and construction measures.

关 键 词：盾构法 基岩浅埋 断裂破碎带 高密度电阻率法 浅层地震折射波 微动勘探法 

分 类 号：U231[交通运输工程—道路与铁道工程]