摘要
为了深入探讨浅埋、大跨度、偏压等复杂条件下公路隧道衬砌结构的安全性,结合卧龙岗隧道左线出口段浅埋偏压、边坡滑动以及断裂带等不利因素,对可能出现的隧道结构安全问题进行了分析论证;通过分析围岩位移稳定性、边坡稳定性以及衬砌结构受力情况,对隧道二衬的安全性进行了全面评价。结果表明:卧龙岗隧道围岩位移基本趋于稳定,边坡处于稳定状态,隧道出口段整体是安全稳定的;该评价结果为隧道后期的安全运营提供了可靠依据。
In order to deeply discuss the safety of highway tunnel lining structure under shallow burial,large span,bias and other complex conditions,combined with special geological conditions,such as shallow-buried bias,slop sliding,fracture zone in left line outlet of Wolonggang Tunnel,authors analyzed the safety problem of tunnel structure in detail which probably appeared in construction period.Through analyzing the stability of surrounding rock deformation,the stability of the slope and the tunnel lining stress,the safety of tunnel lining was comprehensively evaluated.The results show that the surrounding rock displacement of Wolonggang Tunnel is smooth and steady.The slope is stable and the tunnel outlet is safe.The evaluated result provides beneficial references for later operation of tunnel.
出处
《中国公路学报》
EI
CAS
CSCD
北大核心
2010年第3期70-75,共6页
China Journal of Highway and Transport
基金
国家自然科学基金创新研究群体基金项目(40821001)
关键词
隧道工程
衬砌结构
监控量测
浅埋偏压
大跨度
稳定性
tunnel engineering
lining structure
monitoring and measurement
shallow-buried bias
large span
stability
