岩土力学2011，Vol.32Issue(9)：2759-2764,6.
大跨度高边墙地下洞室分层间隔施工方法
Layered interval excavation method for large span and high sidewall underground cavern
刘保国 1徐干成2
作者信息
- 1. 北京交通大学土建学院,北京100044
- 2. 空军工程设计研究局,北京100068
- 折叠
摘要
Abstract
The layered interval excavation method for a large span and high sidewall underground cavern is described in detail. Through numerical simulation, its feasibility is proved. A large span and high sidewall cavern construction practice is as follows; detailed large cavern reserved rock clapboard, upper, middle and bottom chamber between rock clapboard parallel excavation, and finally clear the rock clapboard full of this new method of construction of the excavation process. Through numerical simulation, the largest deformation caused by excavation, distribution of plastic zone and tension of rock bolting of two excavation methods are compared. The results show that the new method of rock excavation damage to surrounding rock is small. Finally, the applicable conditions for this new method are pointed. This method has universal significance for similar conditions of underground large cavern construction.关键词
大断面洞室/开挖方法/平行作业/围岩变形Key words
large section cavern/ excavation methods/ parallel operation/ surrounding rock mass deformation分类
建筑与水利引用本文复制引用
刘保国,徐干成..大跨度高边墙地下洞室分层间隔施工方法[J].岩土力学,2011,32(9):2759-2764,6.
