浅埋偏压隧道围岩稳定性数值分析研究  

Research on numeric analysis of stability of surrounding rock of shallow buried unsymmetrical loading tunnels

作　　者：刘天宇 

机构地区：[1]中油辽河工程有限公司,辽宁盘锦124010

出　　处：《山西建筑》2013年第3期150-152,共3页Shanxi Architecture

基　　金：国家自然科学基金资助项目(项目编号:51109035);中央高校基本科研业务费专项资金资助项目(项目编号:N110401006;N110301006)

摘　　要：以红石沟隧道为工程实例,针对隧道入口段浅埋偏压的情况,建立数值计算模型,运用数值模拟软件FLAC3D对隧道入口段进行模拟,分析了隧道开挖状态下围岩应力场、位移场、塑性区的变化特征,为工程设计和施工提供了依据。Taking the Hongshigou Tunnel as the engineering example,the paper establishes the numeric calculation model according to the shallow buried and unsymmetrical states of the entrance section of the tunnel,adopts the numeric simulation software,FLAC 3D,to simulate the tunnel entrance section,and analyzes the change features of the stress field,the displacement field and the plastic zone in the tunnel excavation status,so as to provide some reference for the engineering design and the construction.

关 键 词：偏压隧道 围岩应力 围岩位移 塑性区 数值模拟 

分 类 号：U451.2[建筑科学—桥梁与隧道工程]