厦门东通道CRD法施工段中隔壁安全性分析  

Analysis of Security of Temporary Supports by CRD Method in Xiamen East Passageway

作　　者：张建国[1] 王明年[1] 俞尚宇[1] 

机构地区：[1]西南交通大学土木工程学院,成都市610031

出　　处：《公路》2008年第3期207-211,共5页Highway

摘　　要：针对目前国内采用CRD法修建隧道施工过程中对临时中隔壁的安全性研究很少的情况,结合厦门东通道(翔安)海底隧道对中隔壁采用现场监测和数值模拟两种手段做了对比分析,两种方法所得结果吻合良好。研究结果表明,在CRD1、CRD3部超前和CRD1、CRD2部超前的情况下,中隔壁上部的水平位移都明显大于下部,但结构安全系数相差不大。以上研究为隧道的信息化施工提供了依据,也为今后的相关工程积累了经验。In view of the lacked study on security of temporary supports on domestic tunnelling construction by CRD method at present,two ways are employed,in-situ monitoring and numerical simulation,in the phase of Xiamen East Passageway.The results turned out to be perfectly matched by comparison and analysis.The research indicates that horizontal displacement of upside is obviously higher than downside's whether CRD1、CRD3 keeps ahead or CRD1、CRD2 keeps ahead,and safety factor of temporary supports is basically the same.As a result,this study provides evidence for information-oriented construction of tunnel as well as experience for the future related projects.

关 键 词：海底隧道 CRD法 中隔壁 安全分析 现场监测 数值模拟 信息化施工 

分 类 号：U459.5[建筑科学—桥梁与隧道工程]