摘要
新建管线不可避免地与运营地铁线路交叉,顶管法以其对周边环境影响小、拆迁量少等优点成为下穿运营地铁线路采用的工艺之一。以某一工程案例为依托,对顶管近距离穿越既有运营地铁线路的关键控制技术进行论述,并采用有限元分析软件PLAXIS3D对穿越工况进行模拟,提出了顶管顶进施工控制措施,以期为类似工程提供参考。
The newly built pipelines are inevitably intersected with the operating subway lines. The pipe jacking method is one of the techniques used in the underground operating subway lines because of its small impact on the surrounding environment, a few removals and the other advantages. Based on an engineering case, the key control technologies of pipe jacking crossing under the existing metro line in close distance are discussed. And the finite element analysis software PLAXIS3D is used to simulate the crossing condition. The construction control measures of pipe jacking are put forward in order to provide reference for the similar projects.
出处
《城市道桥与防洪》
2022年第8期144-147,M0016,M0017,共6页
Urban Roads Bridges & Flood Control
关键词
顶管法
土压力
总顶力
摩阻系数
注浆量
pipe jacking method
earth pressure
total jacking force
coefficient of friction resistance
grouting quantity
