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| 顶管施工对条形基础沉降影响分析与地基加固 | |
| 引用本文： | 吕礼春,周志云,杨允表,邓杨军.顶管施工对条形基础沉降影响分析与地基加固[J].工程建设与设计,2009(10):85-89. |
| 作者姓名： | 吕礼春 周志云 杨允表 邓杨军 |
| 作者单位： | 1. 上海理工大学城市建设与环境工程学院,上海,200093 2. 合乐中国有限公司,上海,200021 3. 陕西延长石油,集团,有限责任公司,陕西延安,716001 |
| 摘 要： | 排水管道顶管施工控制不当，导致老桥条形基础出现不均匀沉降。分析了老桥条形基础的安全性，考虑土体损失对条形基础沉降的影响。采用平面应变有限元模型计算顶管施工引起的条形基础的沉降，并提出了地基加固处理措施。加固后条形基础沉降得到有效控制，保证了原桥梁基础的稳定性。 |
| 关 键 词： | 顶管施工 土体损失 有限元方法 不均匀沉降 地基 加固 |
Settlement Influence Analysis of Strip Foundation Caused By Pipe Thrusting and Groundsill Consolidation |
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| LV Li-chun,ZHOU Zhi-yun,YANG Yun-biao,DENG Yang-jun.Settlement Influence Analysis of Strip Foundation Caused By Pipe Thrusting and Groundsill Consolidation[J].Construction & Design for Project,2009(10):85-89. | |
| Authors: | LV Li-chun ZHOU Zhi-yun YANG Yun-biao DENG Yang-jun |
| Affiliation: | LV Li-chun, ZHOU Zhi-yun ,YANG Yun-biao , DENG Yang-jun (1 .College of Urban Construction ＆ Environmental Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China; 2. Halcrow China Ltd., Shanghai 200021,China;3. Shanxi Yanchang Petroleum (Group)Co.,LTD., Yan＇an 716001, China) |
| Abstract: | Differential settlement occurred in strip foundation of old bridge due to improper construction of drainage pipeline pipe thrusting. Security of the strip foundation of old bridge was analyzed considering the influence of soil slip on strip foundation. Plane strain finite element model is used to calculate the strip foundation settlement caused by drainage pipeline pipe thrusting construction. A groundsill consolidation method is proposed and strip foundation settlement is under control after groundsill consolidation. The stability of the old bridge is guaranteed. |
| Keywords: | pipe thrusting ground loss finite element method differential settlement groundsill consolidation |
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