摘要
排楼隧道洞口段处在Ⅴ级围岩中,围岩自稳能力差,对隧道衬砌结构带来不利的影响。本文采用荷载结构法对Ⅴ级围岩衬砌结构进行了静力计算,得出初期支护和二次衬砌的最大轴力、最大弯矩,以此来评价衬砌结构的稳定性。
Pai Lou tunnel entrance section is in the Five grade surrounding rock, and the stability of surrounding rock is poor,which has a negative impact on the tunnel lining structure. This paper carry out a static calculation on the lining structure by load structure method, obtain the initial maximum axial force and the maximum bending moment, evaluate the stability of lining structure.
出处
《公路工程》
北大核心
2013年第2期165-169,共5页
Highway Engineering
关键词
隧道
V级围岩
衬砌
轴力和弯矩
稳定性
tunnel
surrounding rock
lining
axial force and bending moment
stability
