| 双圈管黏土冻结壁形成过程冻胀力模型试验研究 |
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| 引用本文： | 李海鹏,杨维好,黄家会,宋雷,张涛.双圈管黏土冻结壁形成过程冻胀力模型试验研究[J].冰川冻土,2011,33(4):801-806. |
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| 作者姓名： | 李海鹏 杨维好 黄家会 宋雷 张涛 |
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| 作者单位： | 中国矿业大学深部岩土力学与地下工程国家重点实验室,江苏徐州221008;中国矿业大学力学与建筑工程学院,江苏徐州221116;中国矿业大学力学与建筑工程学院,江苏徐州,221116 |
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| 基金项目： | 国家科技支撑计划项目(2006BAB16B01); 国家自然科学基金项目(40801032;40604015)资助 |
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| 摘 要： | 基于相似理论，开展了双圈管同步冻结条件下黏土冻结壁形成过程冻胀力模型试验研究．在试验条件下黏土冻结壁交圈顺序为外圈管、内圈管，两圈管之间，冻结310d后冻结壁发展到井帮位置．随时间发展，外圈管内侧温度分布逐渐均匀，而外圈管外侧仍存在较大温度梯度．结果表明：冻胀力的发展变化与冻结温度场密切相关，且表现出显著的时空不均匀性...
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| 关 键 词： | 冻结壁 双圈管 黏土 温度场 冻胀力 |
Model Test of Frost Heaving Pressure during Formation of Clay Freezing Wall with Two-Cycle Freezing-Tube |
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| LI Hai-peng,YANG Wei-hao,HUANG Jia-hui,SONG Lei,ZHANG Tao.Model Test of Frost Heaving Pressure during Formation of Clay Freezing Wall with Two-Cycle Freezing-Tube[J].Journal of Glaciology and Geocryology,2011,33(4):801-806. |
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| Authors: | LI Hai-peng YANG Wei-hao HUANG Jia-hui SONG Lei ZHANG Tao |
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| Institution: | LI Hai-peng1,2,YANG Wei-hao1,HUANG Jia-hui2,SONG Lei1,ZHANG Tao2(1.State Key Laboratory for Geomechnics and Deep Underground Engineering,China University of Mining and Technology,Xuzhou Jiangsu 221008,China,2.School of Mechanics and Civil Engineering,China University of Miningand Technology,Xuzhou Jiangsu 221116,China) |
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| Abstract: | Based on similarity theory,a model test was carried out of frost heaving pressure during the formation of clay freezing wall with two-cycle freezing-tube.In the test,closured freezing wall firstly formed in the outer cycle of the freezing-tube,and then formed in the inner cycle of the freezing-tube,lastly formed between the two cycles.Temperature difference between the inside the outer cycles decreased gradually.However,there was still at high temperature gradient outside of the outer cycle until the test f... |
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| Keywords: | freezing wall two-cycle freezing-tube clay temperature field frozen heaving pressure |
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