| 某地铁区间隧道冻结施工冻胀效应随机预测分析 |
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| 引用本文： | 周太全,华渊,吕宝华.某地铁区间隧道冻结施工冻胀效应随机预测分析[J].冰川冻土,2009,31(1). |
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| 作者姓名： | 周太全 华渊 吕宝华 |
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| 作者单位： | 1. 江南大学环境与土木工程学院,江苏无锡,214122
2. 中铁十九局集团第五工程有限公司,辽宁大连,116000 |
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| 基金项目： | 中铁19局集团科技攻关项目，无锡市建设系统科技项目 |
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| 摘 要： | 土层冻结引发冻胀,引起地面上升和变形,过量的不均匀沉降或变形可能危及周围地面建筑.南京地铁某区间隧道穿过地层为软一流塑状淤泥质粉质粘土,拟采用人工冻结法作为辅助施工方法穿越该不良地段.为对地面建筑物进行变形控制,需要对冻结法施工冻胀效应进行预测.采用随机介质理论对该工程冻结施工的冻胀效应进行预测,介绍了冻胀效应分析的基本过程,编制了计算分析程序,分析了水平冻胀引起的地面隆起、曲率变形规律.结果表明:水平冻胀引起的地面变形均满足地面变形控制要求.
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| 关 键 词： | 冻结法 冻胀效应 随机预测 地铁隧道 地面变形控制 |
Stochastic Prediction for Frost Heave Effect of a Subway Tunnel |
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| ZHOU Tai-quan,HUA Yuan,L Bao-hua.Stochastic Prediction for Frost Heave Effect of a Subway Tunnel[J].Journal of Glaciology and Geocryology,2009,31(1). |
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| Authors: | ZHOU Tai-quan HUA Yuan L Bao-hua |
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| Institution: | 1.College of Environmental and Civil Engineering;Jiangnan University;Wuxi Jiangsu 214122;China;2.No.5 Engineering Department;China Railway Construction Group No.19 Company Limited;Dalian Liaoning 116000;China |
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| Abstract: | Horizontal freezing induces ground frost heave and ground displacement.Excessive uneven displacement or deformation may damage the surrounding building.The stratum that a Nanjing subway tunnel will traverse through is of soft and silt clay.The artificial freezing construction method is proposed to help the tunnel to traverse through the worse stratum.To control the ground building deformation and displacement due to the ground frost heave,the frost heave effect for the artificial freezing construction shoul... |
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| Keywords: | artificial freezing frost heave effect stochastic prediction subway tunnel ground deformation control |
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