岩土力学2009，Vol.30Issue(12)：3765-3770,6.
隧洞地表稳定性监测及计算分析
Monitoring and analysis of tunnel surface stability
摘要
Abstract
The buried depth of Liziba tunnel is shallow, and surrounding rocks at entrance and exit are soft. Many houses and one water tower have been constructed over the tunnel. According to the engineering condition, the ahead ductile, I-steel and shotcrete are used in the first support, grounting and inverted arch are constructed at tunnel bottom, and the semicircular arch of reinforced concrete is used in the second lining. To ensure the construction safety and the building stability during construction, the stability of the most dangerous section is calculated, and the calculated stability factor is 1.9. The settlements of the surface, the water tower and the houses are monitored, and the arch settlement and horizontal convergence of the side-wall are monitored, too. The results show that settlements of the surface and the houses are little, the settlement of water tower goes down equably, and the deformations of arch and side-wall are little, too.关键词
隧道/稳定性/监测/沉降Key words
tunnel/ stability/ monitoring/ settlement分类
交通工程引用本文复制引用
贾剑青,王宏图,刘大鹏,安龙奇..隧洞地表稳定性监测及计算分析[J].岩土力学,2009,30(12):3765-3770,6.基金项目
兰州交通大学'青蓝'人才工程基金资助计划资助(QL-08-16A) （QL-08-16A）
国家自然科学基金(No.50774106) （No.50774106）
国家重点基础研究发展规划(973)项目(No. 2005CB221502) （973）
国家自然科学创新群体基金(No. 50621403). （No. 50621403）
