摘要
目前,城市地铁隧道施工主要是采用盾构法.依据现有的文献资料以及施工经验,针对盾构法施工引起地面沉降、盾构法施工引起的附加应力对周围环境的影响、盾构法施工排水及防水的影响和地震作用对盾构法施工隧道的影响进行了探讨,并认为,盾构法隧道施工引起地面沉降的根本原因是施工对周围土体的扰动和施工过程中地下水疏排产生的一定范围的地面沉降.同时,从粘性土层中盾构法隧道的地震响应和盾构法隧道砂土层围岩的地震液化判别方法两个方面论述了地震作用对盾构法施工隧道的影响.
At the present time,the shield tunneling is a main method of the subway tunneling in city.In this paper,the influence of subway by shield tunneling on environment,such as surface subsidence,subsidiary stress due to shield tunneling,drainage and waterproof,and the influence of earthquake on shield tunnel,are studied, according to existing documentation and construction experience.Based on this,the viewpoint is presented that the main reason of generating surface subsidence is that construction disturbs surrounding soil in the process of shield tunneling,and another reason is the drainage groundwater.The effect of earthquake on tunnel by shield driven is discussed on the aspect of earthquake response of the tunnel by shield driven in clay soil and identification of earthquake-caused ground liquefying in sandy soil arround tunnel by shield driven.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2003年第z1期2464-2468,共5页
Chinese Journal of Rock Mechanics and Engineering
基金
国家自然科学基金重大研究计划资助项目(90102002).
关键词
隧道工程
盾构法施工
地面沉降
附加应力
冻结法
地震液化
环境工程
tunneling engineering
shield construction
surface subsidence
subsidiary stress
freezing work method
earthquake-caused ground liquefying
environment engineering
