厦门地区花岗岩复合地层盾构施工地质调查及孤石预处理

摘要

Southeast China coastal area,the geological conditions is a typical composite granite formation,Xiamen area is particularly representative,subway shield in this stratum construction has a great influence by boulders,floating stones and bedrock protruding.This paper mainly introduces the boulders and floating stones detection and disposed method before and in the process of the shield construction,and combined with the engineering example,the above methods have carried on the reason analysis,and to achieve the purpose of control in both technology and economy.%我国东南沿海地区地质条件为典型的花岗岩复合地层，厦门地区尤其具有代表性，地铁盾构在此种地层中施工受孤石、飘石、基岩突起影响极大。本文主要介绍盾构施工前及过程中孤石、飘石探测及处理方法，并结合工程具体实例，对孤石基岩探测方法、处理方法进行合理的选择，进而达到技术、经济双控的目的。