| 隧道盾构施工对临近桩基影响的数值模拟 |
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| 引用本文： | 李文举,武亚军,常莹. 隧道盾构施工对临近桩基影响的数值模拟[J]. 上海大学学报(自然科学版), 2010, 16(2): 210-215. DOI: 10.3969/j.issn.1007-2861.2010.02.019 |
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| 作者姓名： | 李文举 武亚军 常莹 |
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| 作者单位： | 1.上海大学 土木工程系,上海 200072; 2.上海隧道工程股份有限公司,上海 200082 |
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| 基金项目： | 上海高校选拔培养优秀青年教师科研专项基金资助项目，国家科技支撑项目 |
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| 摘 要： | 以上海轨道交通7号线隧道盾构施工为工程背景，将隧道盾构施工过程简化为4个典型阶段.采用岩土工程数值分析软件，侧重于隧道衬砌完成后短期内软土不排水的状态，通过应力释放系数法与注浆等代层变刚度法相结合,实现盾构施工的二维动态仿真模拟，分析盾构施工对临近桩基的轴力、剪力、弯矩和位移的影响.该简化较真实地反映隧道盾构施工的实际情况，并可以得到比较真实的数据.
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| 关 键 词： | 隧道盾构施工；桩基础；有限差分法；二维动态仿真模拟 |
| 收稿时间： | 2008-09-30 |
Numerical Simulation of Influence of Pile Foundation Due to Shield Construction |
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| LI Wen-ju,WU Ya-jun,CHANG Ying. Numerical Simulation of Influence of Pile Foundation Due to Shield Construction[J]. Journal of Shanghai University(Natural Science), 2010, 16(2): 210-215. DOI: 10.3969/j.issn.1007-2861.2010.02.019 |
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| Authors: | LI Wen-ju WU Ya-jun CHANG Ying |
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| Affiliation: | 1.Department of Civil Engineering, Shanghai University, Shanghai 200072, China;2. Shanghai Tunnel Engineering Co., Ltd., Shanghai 200082, China |
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| Abstract: | Based on the tunnel shield construction of Shanghai's No.7 Metro line,the tunnel shield construction was divided into four typical construction stages.The two-dimensional dynamical simulation of the influence of building pile foundation induced by adjacent tunnel shield construction is implemented.By combining a stress release factor method with a method of variable rigid body to simulate the grouting,an elasto-plastic finite difference method is used to analyze the impact of building pile foundation induce... |
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| Keywords: | shield tunneling pile foundation finite difference method two-dimensional dynamic analog simulation |
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