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| 桩基托换中筏板基础及地基加固的优化设计 | |
| 引用本文： | 金方方,徐前卫,马忠政,马静,明娟. 桩基托换中筏板基础及地基加固的优化设计[J]. 地下空间与工程学报, 2011, 7(Z1): 1436-1441 |
| 作者姓名： | 金方方 徐前卫 马忠政 马静 明娟 |
| 作者单位： | 1. 上海理工大学土木工程系,上海,200093 2. 同济大学城市轨道与铁道工程系,上海,200092 3. 上海申通地铁集团有限公司,上海,200010 |
| 摘 要： | 桩基托换是解决盾构穿越障碍的有效方法之一,以上海市地铁10号线在沙泾港桥处盾构穿越桥梁桩基为例,采用有限元法对箱型结构体系进行了受力和变形分析,发现桥面板和筏板最大的变形发生在中跨,其最大变形和沉降量分别为8.197 mm和3.835 mm,因此需要对筏板下地基进行加固处理.计算结果表明:随着筏板厚度的增加,桥梁跨中最... |
| 关 键 词： | 有限元法 桩基托换 箱型结构体系 |
Optimal Design of the Raft Foundation and the Foundation Reinforcement during the Pile Underpinning |
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| Jing Fangfang,Xu Qianwei,Ma Zhongzheng,Ma Jing,Ming Juan. Optimal Design of the Raft Foundation and the Foundation Reinforcement during the Pile Underpinning[J]. Chinese Journal of Underground Space and Engineering, 2011, 7(Z1): 1436-1441 | |
| Authors: | Jing Fangfang Xu Qianwei Ma Zhongzheng Ma Jing Ming Juan |
| Affiliation: | Jing Fangfang1,Xu Qianwei2,Ma Zhongzheng3,Ma Jing1,Ming Juan1 (1.Department of Civil Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China,2.Urban Rail Transit and Railway Engineering Department,Tongji University,Shanghai,200092,3.Shanghai Shentong Metro Co.,Ltd,Shanghai 200010,China) |
| Abstract: | Pile underpinning is one of the effective methods for shield traversing obstacles.In this paper,taking shield passing through bridge pile foundation of Shanghai Metro Line 10 at Shajinggang bridge as the example and adopting finite element method,a series of analysis on the internal force and deformation of the box structural system during the construction process were carried out.It's concluded that the greatest deformation of the bridge slab and the raft occurred in the midspan.The largest deformation and... |
| Keywords: | finite element method pile underpinning box structure system |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
