| 浅埋暗挖隧道内桩基主动托换技术方案可靠性研究 |
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| 引用本文： | 蔡治奎,解立波.浅埋暗挖隧道内桩基主动托换技术方案可靠性研究[J].铁道建筑技术,2010(6):53-58. |
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| 作者姓名： | 蔡治奎 解立波 |
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| 作者单位： | 1. 中铁十四局集团第五工程有限公司,山东兖州,271200
2. 山东科技大学土木与建筑工程学院,山东青岛,266510 |
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| 摘 要： | 为了验证深圳地铁老街站东端站台扩建工程桩基主动托换方案的可靠性,保证隧道施工以及施工过程中隧道上部建筑物的安全,采用大型非线形数值分析软件ABAQUS,对桩基主动托换前后以及各个托换工序进行仿真模拟,计算得到了各工序沉降分布云图、结构各关键点的沉降时程曲线。结果表明既有施工方案是安全可行的。
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| 关 键 词： | 浅埋暗挖隧道 主动托换 可靠性 |
The Program Reliability Analysis of Initiative Pile Foundation Underpinning in Shallow Buried Tunnel |
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| Cai Zhikui,Xie Libo.The Program Reliability Analysis of Initiative Pile Foundation Underpinning in Shallow Buried Tunnel[J].Railway Construction Technology,2010(6):53-58. |
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| Authors: | Cai Zhikui Xie Libo |
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| Institution: | 1. China Railway 14th Bureau Group Co. Ltd. , Yanzhou 271200, China; 2. College of Civil Engineering ＆ Architecture, SUST, Qingdao 266510, China) |
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| Abstract: | In order to verify the reliability of the program of Shenzhen Metro initiative pile foundation underpinning in the shallow buried tunnel and ensure the safety of the tunnel construction and buildings above, we use the large-scale nonlinear numerical analysis software ABAQUS to simulate the process of the initiative pile foundation underpinning. Then we gain the distribution nephogram of the settlement process and the settlement time-history curves of each key point. The results show that the new construction program is safe and feasible. |
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| Keywords: | shallow buried tunnel underpinning reliability |
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