复合地层盾构掘进隧道地表沉降及支护受力分析  

Analysis of the Ground Settlement and the Stress of the Support and Supporting Lining of a Shield-Drilled Tunnel in Composite Stratum

作　　者：王双龙 

机构地区：[1]中铁十七局集团第六工程有限公司,福建福州350014

出　　处：《国防交通工程与技术》2016年第6期53-57,共5页Traffic Engineering and Technology for National Defence

基　　金：国家自然科学基金(51278427);国家自然科学基金(51678503)

摘　　要：以海岛复合地层为典型代表，盾构穿越较节理发育的全风化花岗片麻岩时，地表以及地层变形难以控制，其施工安全性是需重点解决的问题之一。以厦门地铁一号线董任站～集美中心站盾构区间隧道为工程背景，对盾构穿越的典型节理复合地层盾构开挖进行数值模拟，探明了复合地层盾构施工地表沉降和支护结构力学行为特征的规律，从而为保证复合地层盾构施工安全提供指导。With the composite stratum of the sea island as the typical representative of the composite strata,when a shield is drilling through a joint-well developed stratum of fully-weathered granite gneiss, it is extremely difficult to control the ground surface and the deformation of the stratum, in which case the security of construction is one of the most important problems that have to he focused on and solved. With the shield-drilled section of the tunnel of trine One of the Xiamen Metro between the Dongren Station and the Jimei Central Station as the engineering background, the shield＇s drilling through a typical ioint-well- developed composite stratum is numerically simulated in the paper, with the laws of the ground settlement and the features of the mechanical behavior of the supporting structure in the course of a shield drilling through the composite stratum made clear. upon the basis of which the shield-drilling construction is guided in time and the security of the construction is ensured.

关 键 词：复合地层 盾构法 地表沉降 节理 

分 类 号：U452.12[建筑科学—桥梁与隧道工程]