| 跨越既有线段隧道动态施工数值模拟 |
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| 引用本文： | 张英,万文,戴永波.跨越既有线段隧道动态施工数值模拟[J].西部交通科技,2011(7):72-77. |
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| 作者姓名： | 张英 万文 戴永波 |
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| 作者单位： | 1. 重庆地质矿产研究院外生成矿与矿山环境重庆市重点实验室,重庆,400042
2. 湖南科技大学,湖南湘潭,411201 |
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| 基金项目： | 湖南省自然科学基金资助项目(10JJ3007) |
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| 摘 要： | 文章以重庆市地铁1号线大坪车站跨越既有线段施工为研究对象,介绍采用FLAC3D对近距离叠交情况下新建隧道施工引起既有隧道衬砌的应力和位移进行了模拟和分析,同时分析了新建隧道以桩＋承台的方法跨越隧道施工后桩轴力和承台梁弯矩的分布情况,研究成果为今后类似地铁工程建设提供参考依据。
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| 关 键 词： | 跨越既有线 衬砌应力 衬砌位移 桩轴力 承台梁弯矩 |
Dynamic Construction Data Simulation for Existing Line Crossing |
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| ZHANG Ying,WAN Wen,DAI Yong-bo.Dynamic Construction Data Simulation for Existing Line Crossing[J].Western China Communication Science & Technology,2011(7):72-77. |
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| Authors: | ZHANG Ying WAN Wen DAI Yong-bo |
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| Institution: | ZHANG Ying1,2,WAN Wen3,DAI Yong-bo1,2(1.Chongqing Key Laboratory for Mining Formation and Environment,Chongqing Institution of Geology and Mineral Resources,Chongqing,400042,2.State Key Labora-tory of Coal Resource and Safe Mining Chongqing Branch,3.Hunan University of Science and Technology,Xiangtan,Hunan,411201) |
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| Abstract: | Taking the existing line construction in Chongqing subway 1 train station as study object,the article introduces the method of using FLAC3D to perform simulation and analy-sis on the lining stress and displacement under tunnel construction.It also analyzes the distr-ibution of pile shaft force and apron piece bending moment under this method.The result shows that this study can provide reference to related project. |
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| Keywords: | Cross the existing line Lining stress Lining displacement Pile shaft force Apron piece bending moment |
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