摘要
相比于一般隧道,偏压隧道常常位于隧道洞口浅埋段,其围岩破碎,地质环境条件差,围岩荷载不对称,给隧道施工和稳定性带来一定影响。以回头沟隧道为依托工程,在洞口段选择监测断面,根据隧道围岩与初衬间压力的监测结果,分析围岩压力的大小、变化规律;分析是否存在偏压现象及隧道的稳定性,得出了相应的结论。
Compared with the general tunnel,the bias tunnel is often located in the shallow buried section of the hole,with broken surrounding rock,poor geological conditions and asymmetric surrounding rock load,bringing some impact to the tunnel construction and stability.Based on the Huitougou tunnel project,selecting the monitoring section in the hole section,the surrounding rock pressure and its variation law are analyzed according to the monitoring results of the pressure between the surrounding rock and the lining of the tunnel.And whether there is bias phenomenon and the stability of the tunnel are also analyzed,and corresponding conclusions are drawn.
作者
代树林
李彦明
郭海洋
高杰
DAI Shulin;LI Yanming;GUO Haiyang;GAO Jie(Construction Engineering College of Jilin University,Changchun 130026,China)
出处
《路基工程》
2018年第2期107-111,共5页
Subgrade Engineering
基金
吉林省交通厅科技项目:公路偏压隧道围岩稳定与施工方法研究(2014-4-1-10-2)
关键词
偏压隧道
围岩压力
初衬
压力监测
施工
bias tunnel
surrounding rock pressure
early lining
pressure monitoring
construction