摘要
以广州某实际工程为例,利用有限元软件Midas GTS模拟盾构施工的实际工况,对盾构隧道施工过程进行三维动态模拟分析,深入研究新建盾构隧道-土体-已有地铁隧道的相互关系,重点进行了土舱压力与注浆压力的影响分析,通过施工参数的优化,全面分析盾构隧道施工时已有地铁隧道的变形及内力变化的规律。其分析结果可为优化设计和施工提供有益的参考。
Based on a practical project in Guangzhou, the shield construction processes are simulated by the threedimensional dynamical finite element software （i.e. Midas GTS） , where the interaction of the operating tunnel- soil- existing tunnel system is comprehensiv in the soil storage and the grouting pressure ely and investigated. Through the salient study of the effects of the pressure optimization of construction parameters, the deformation and stresses in the existing tunnel structure are comprehensively analyzed, which can provide valuable reference for optimized design and construction of the tunnels above existing subway lines.
作者
陈志平
黄学龙
韩映忠
CHEN Zhi-ping HUANG Xue-long HAN Ying-zhong(Guangzhou First Construction Engineering Co.,Ltd., Guangzhou 510060 Technology Development Center of Guangzhou Institute of Building Science Co., Ltd., Guangzhou 510440)
出处
《广州建筑》
2016年第5期33-38,共6页
GUANGZHOU ARCHITECTURE
关键词
盾构施工
注浆压力
土舱压力
有限元
shield construction
grouting pressure
pressure in the soil storage
finite element
