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| 地铁隧道水平冻结法施工冻结壁温度场影响参数分析 | |
| 引用本文： | 毕贵权,程形燕,石磊,马希金.地铁隧道水平冻结法施工冻结壁温度场影响参数分析[J].兰州理工大学学报,2009,35(3). |
| 作者姓名： | 毕贵权 程形燕 石磊 马希金 |
| 作者单位： | 1. 兰州理工大学,能源与动力工程学院,甘肃,兰州,730050;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. 兰州理工大学,能源与动力工程学院,甘肃,兰州,730050 3. 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 |
| 基金项目： | 科学院知识创新工程重大项目 |
| 摘 要： | 以地铁隧道水平冻结法施工中最常见的粉质粘土为例,应用大型数值分析软件ANSYS系统研究冻结管直径、冻结管间距、盐水温度、土层含水量4大因素对冻结法施工中温度场的影响,提出各因素对冻结壁厚度和冻结时间的灵敏度公式;在各影响因素下通过灵敏度对比分析,得出各因素对冻结壁厚度灵敏度影响规律,该影响规律由大到小依次为:盐水温度、冻结管间距、冻结管直径、土层含水量. |
| 关 键 词： | 冻结壁 温度场 冻结管直径 冻结管间距 盐水温度 土层含水量 |
Analysis of influencing parameters of temperature field within freezing wall of subway tunnel construction with horizontal ground freezing |
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| BI Gui-quan,CHENG Xing-yan,SHI Lei,MA Xi-jin.Analysis of influencing parameters of temperature field within freezing wall of subway tunnel construction with horizontal ground freezing[J].Journal of Lanzhou University of Technology,2009,35(3). | |
| Authors: | BI Gui-quan CHENG Xing-yan SHI Lei MA Xi-jin |
| Institution: | BI Gui-quan1,2,CHENG Xing-yan1,SHI Lei2,MA Xi-jin1(1.College of Energy and Power Engineering,Lanzhou Univ.of Tech.,Lanzhou 730050,China,2.State Key Laboratory of Frozen Soil Engineering,CAREERI,CAS,Lanzhou Gansu 730000,China) |
| Abstract: | Taking the most common silty clay used in subway tunnel construction with horizontal freezing method as an example,the effects of brine temperature,diameter of frozen pipes,interval of frozen pipes,and moisture content of soil layer on the temperature field within frozen wall for the freeing construction were systematically investigated with large-scale numerical software ANSYS.The formulas of sensitivity of every above-mentioned factor to the thickness of the frozen wall and freezing time were presented.By... |
| Keywords: | frozen wall temperature field diameter of frozen pipes interval of frozen pipes brine temperature moisture content of soil layer |
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