| 考虑渗流场作用下的隧道开挖分析 |
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| 引用本文： | 赵二项,高江涛.考虑渗流场作用下的隧道开挖分析[J].岩土工程技术,2009,23(5):232-236. |
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| 作者姓名： | 赵二项 高江涛 |
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| 作者单位： | 1. 中国科学院寒区旱区环境与工程研究所冻土工程国家重点实验室,甘肃兰州,730000
2. 中铁一局集团有限公司房屋建筑工程分公司,陕西西安,710054 |
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| 基金项目： | 中国科学院冻土工程国家重点实验室基金资助项目 |
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| 摘 要： | 由于隧道的开挖，破坏了初始地应力场与渗流场。以圆形隧道为例，采用有限差分程序计算考虑渗流场作用时，隧道开挖后洞室周围应力场、孔隙水压力、位移场的分布情况，并对比计算了是否考虑渗流效应时位移场的差异，以及不同水位导致的位移场的不同分布状态。提出了相应的隧道防排水、设计与施工相关建议。
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| 关 键 词： | 渗流场 流固耦合 有限差分法 隧道 快速拉格朗日分析方法 |
Analysis of the Tunnel Excavation Under Considering the Seepage Field |
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| Zhao Erxiang,Gao Jiangtao.Analysis of the Tunnel Excavation Under Considering the Seepage Field[J].Geotechnical Engineering Technique,2009,23(5):232-236. |
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| Authors: | Zhao Erxiang Gao Jiangtao |
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| Institution: | Zhao Erxiang Gao Jiangtao (1. State Key Laboratory of Frozen Soil Engineering, CAREERI, CAS, Lanzhou 730000, Gansu, China; 2. China Railway First Group Co. , Ltd. Buildings Structural Engineering Company, Xian 710054, Shanxi,China) |
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| Abstract: | The initial geostress and seepage field are destroyed because of tunnel excavation. Take circular tunnel for example,the distribution of stress field, pore water pressure and displacement field after tunnel excavation will be obtained with Finite-difference procedures considering seepage force. Meanwhile, the difference of displacement field is contrasted between whether or not take into account seepage effect and also the different distribution of displacement field under diverse water line. Eventually, the relative suggestion of waterproof and drainage, design and construction on tunnel is provided. |
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| Keywords: | seepage force Fluid--solid coupling FDM tunnel Fast Lagrangian Analysis of Continua |
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