摘要
盾构法已经成为城市地铁区间隧道施工的一种重要方法,在盾构法隧道施工过程中,经常要从地上和地下重要建筑物附近穿越。某盾构隧道需要近距离从已有高架桥桩基下穿过,通过适当简化,采用平面连续介质有限元,模拟双洞单线盾构隧道施工的整个过程,考虑不同阶段土体的应力释放率,分析盾构隧道施工对桩基变形和内力的影响。
Shield method has become an important method of metro tunnel construction in dries. During the construction of shield tunnel, it often occurs that the tunnel has to pass through some important constructions closely. In certain project, the shield tunnel needs to go through the underground piles of a viaduct in parallel. By simplifying the problem according to the project characteristic, the planar finite element is adopted to analyze the impact of whole process of the double single line tunnels construction on the deformation and internal force of the piles, considering the ratio of soil stress release.
出处
《地下空间与工程学报》
CSCD
2005年第6期972-975,982,共5页
Chinese Journal of Underground Space and Engineering
关键词
盾构法
高架桩基
应力释放
变形
内力
shield tunnel
pile foundation of viaduct
stress release
deformation
internal force
