摘要
某市轨道交通三号线某区间双线隧道 ,隧道断面大 ,埋深浅 ,岩性差 ,且隧道顶部离3 0号、3 1号楼桩基很近。针对上述特点 ,提出用CRD工法加辅助工法施工 ,并采用弹塑性有限单元法对该工法按施工步骤进行分步模拟计算 ,为施工设计提供依据。
For the double line tunnel of a section in the rail transit No.3 of certain city, there is a large cross section, a shallow overburden and poor quality of the rock, besides, the top of the tunnel is close to the pile foundation of No.30 and No.31 buildings. Based on abovementioned characteristics, the CRD process and auxiliary process are proposed, and an elastic-plastic finite element method is used to simulate calculation for the process according to its construction steps. It can serve as a basis for the design of construction.
出处
《地下空间》
CSCD
2002年第4期285-289,305,共6页
Underground Space
关键词
地铁
双线隧道
CRD工法
数值计算
metro
double line tunnel
CRD process
auxiliary process
numerical calculation
