| 地铁联络通道冻结暗挖施工三维数值模拟 |
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| 引用本文： | 张金荣.地铁联络通道冻结暗挖施工三维数值模拟[J].现代城市轨道交通,2011(2):45-48,51. |
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| 作者姓名： | 张金荣 |
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| 作者单位： | 杭州市地铁集团有限责任公司,高级工程师,浙江,杭州,310020 |
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| 摘 要： | 建立包括双线盾构隧道、冻土帷幕、联络通道以及泵房在内的三维数值模型,模拟了地层冻结、联络通道开挖和支护的整个过程。分析了联络通道以及泵房开挖对冻土帷幕、初支护和主隧道的影响。从而,确定了初支护及冻土帷幕的受力最不利位置和发生最大变形的位置,并提出相应的控制指标。
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| 关 键 词： | 联络通道 冻土帷幕 数值分析 |
Three-dimensional Numerical Simulation of Freezing and Subsurface Excavation Construction for Metro Connecting Passage |
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| Zhang Jinrong.Three-dimensional Numerical Simulation of Freezing and Subsurface Excavation Construction for Metro Connecting Passage[J].Modern Urban Transit,2011(2):45-48,51. |
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| Authors: | Zhang Jinrong |
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| Institution: | Zhang Jinrong |
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| Abstract: | Three-dimensional numerical models for double-line shield tunnel,curtain of frozen soil,connecting passage and pump house are established.The whole process of ground freezing as well as excavation and support for connecting passage is simulated.The effects of excavation of connecting passage and pump house on frozen soil curtain,primary support and main tunnel are analyzed to determine the position of worst stress direction for primary support and frozen soil curtain and the position of maximum distortion. ... |
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