潜盾隧道环片设计参数之研究

A Study on Parameters of Bored Tunnel Lining Design

潜盾隧道环片设计之合理性,取决于设计参数的选择。这些参数主要包括:静止土压系数K0、土壤劲度Eg、地下水位高度、片间接头旋转弹簧常数Kθ、环间接头剪切弹簧常数Ks等。针对以上五个主要参数,考虑环片错缝拼接效应,以村上博智及小泉淳两位教授共同研发的计算机软件MOLEMAN-i,建立三环模式,进行参数敏感度分析,进而得到对环片设计有所帮助的建议。

The rationality of tunnel lining design is based on the choice of design parameters. These main parameters are included coefficient of earth pressure at rest K0, soil young's modulus Eg, segment connection rotational spring Kθ, and circumferential connection shear spring Ks. In this paper, we will focus on these five parameters and consider the staggered effect of tunnel linings. Furthermore, the MOLEMAN-i computer program developed by Prof. Murakami and Koizumi is used to establish 3-ring model for the tunnel lining. The output data will be used for parameter sensitivity analyses and get useful suggestions for tunnel lining design.