复杂地层差异温度人工冻结试验与数值分析

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (0 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要针对立井冻结工程中存在的导热性能差异较大复杂地层，为加快局部地层冻结并对冷能进行优化，提出一种冻结管差异温度优化冻结方案，并研发单管双循环系统冻结器。为验证该方案的强化冻结效果和冻结器对冷能的调控能力，采用2套盐水循环系统对冻结器上、下管段提供不同温度的低温盐水，在模型试验箱体内进行砂土和粉质黏土的单管冻结试验，研究冻结管不同管段在不同盐水温度作用下形成的冻结壁温度场分布特征，并采用FLAC3D对冻结管进行冻结数值模拟。结果表明：该冻结器实现界面附近9.1 ℃的管段差异温度冻结，优化方案能有效调整冻结壁的厚度和平均温度，使导热性能稍差的粉质黏土较砂土得到一定程度强化冻结。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章

关键词 ：土力学, 双循环系统, 冻结器, 温度场, 人工冻结, 强化冻结

Abstract：There is a great difference of thermal conductivity between strata in some shaft construction projects by artificial freezing method. An optimization freezing suggestion of flowing two types of negative temperature solutions in a freezing pipe is proposed to accelerate the freezing rate of local strata and to optimize cold energy adjustment. And a single freezing pipe of dual circulation system is developed for this purpose. To verify the effect of intensified freezing and the adjustment ability of the freezing pipe，a single freezing pipe test for sand and silty clay is conducted in a model test box using two sets of circulatory systems to provide calcium chloride solution of different negative temperatures for two sections of a single freezing pipe. Temperature field distribution characteristics of frozen wall in different levels of freezing pipe are analyzed. Meanwhile，the numerical simulation is adopted to calculate temperature field of the case using FLAC3D software. The results show that the difference of temperature can reach 9.1℃ between adjacent outer walls of the two different temperature sections，and the thickness and average temperature of freezing wall can be adjusted effectively. The silty clay has been intensified frozen more than sand certainly.

Key words： soil mechanics dual circulation system freezing pipe temperature field artificial freezing intensified freezing

收稿日期: 2012-10-04

引用本文:

刘波1，陈玉超1，2，李东阳1，宋常军1，3. 复杂地层差异温度人工冻结试验与数值分析[J]. 岩石力学与工程学报, 2013, 32(s2): 3328-3336.
LIU Bo1，CHEN Yuchao1，2，LI Dongyang1，SONG Changjun1，3. SCALE MODEL TESTS AND NUMERICAL ANALYSIS OF ARTIFICIAL FREEZING AT DIFFERENT TEMPERATURES IN COMPLICATED STRATA. , 2013, 32(s2): 3328-3336.

链接本文:

https://rockmech.whrsm.ac.cn/CN/Y2013/V32/Is2/3328

[1]	陈湘生. 对深冻结井几个关键问题的探讨[J]. 煤炭科学技术， 1999，27(1)：36-38.(CHEN Xiangsheng. Discuss on several key issues for deep frozen shaft[J]. Coal Science and Technology，1999，27(1)：36-38.(in Chinese))
[2]	崔广心，杨维好，吕恒林. 深厚表土层中的冻结壁和井壁[M]. 徐州：中国矿业大学出版社，1998：90-94.(CUI Guangxin，YANG Weihao，LU Henglin. Frozen wall and shaft wall in deep alluvium[M]. Xuzhou：China University of Mining and Technology Press，1998：90-94.(in Chinese)) " target="_blank">
[3]	岳丰田，王涛. 扎赉诺尔矿区白垩系地层冻结温度场实测与分析[J]. 河北理工大学学报：自然科学版，2009，31(2)：119-122.(YUE Fengtian，WANG Tao. Survey and analysis of frozen temperature field of the cretaceous stratum in the Zhalainuoer mining site[J]. Journal of Hebei Polytechnic University：Natural Science，2009，31(2)：119-122.(in Chinese))
[4]	杨更社，奚家米，李慧军，等. 三向受力条件下冻结岩石力学特性试验研究[J]. 岩石力学与工程学报，2010，29(3)：459-464.(YANG Gengshe，XI Jiami，LI Huijun，et al. Experimental study of rock mechanical properties under triaxial compressive and frozen conditions[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(3)：459-464.(in Chinese))
[5]	李栋伟，汪仁和，范菊红. 白垩系冻结软岩非线性流变模型试验研究[J]. 岩土工程学报，2011，33(3)：398-403.(LI Dongwei，WANG Renhe，FAN Juhong. Nonlinear rheological model for frozen soft rock during cretaceous period[J]. Chinese Journal of Geotechnical Engineering，2011，33(3)：398-403.(in Chinese))
[6]	周晓敏，王梦恕，张绪忠. 渗流作用下地层冻结壁形成的模型试验研究[J]. 煤炭学报，2005，30(2)：196-201.(ZHOU Xiaomin，WANG Mengshu，ZHANG Xuzhong. Model test research on the formation of freezing wall in seepage ground[J]. Journal of China Coal Society，2005，30(2)：196-201.(in Chinese))
[7]	杨平，皮爱如. 高流速地下水流地层冻结壁形成的研究[J]. 岩土工程学报，2001，23(2)：167-171.(YANG Ping，PI Airu. Study on the effects of large groundwater flow velocity on the formation of frozen wall[J]. Chinese Journal of Geotechnical Engineering，2001，23(2)：167-171.(in Chinese))
[8]	崔云龙. 简明建井工程手册[M]. 北京：煤炭工业出版社，2007：1 170-1 175.(CUI Yunlong. A concise handbook of mine construction engineering[M]. Beijing：China Coal Industry Publishing House，2007：1 170-1 175.(in Chinese)) " target="_blank">
[9]	中华人民共和国行业标准编写组. MT/T 1124—2011煤矿冻结法开凿立井工程技术规范[S]. 北京：煤炭工业出版社，2011.(The Professional Standards Compilation Group of People?s Republic of China. MT/T 1124—2011 Coal mine technical specification for vertical shaft sinking by freezing method[S]. Beijing：China Coal Industry Publishing House，2011.(in Chinese)) " target="_blank">
[10]	马芹永. 人工冻结法的理论与施工技术[M]. 北京：人民交通出版社，2007：265-271.(MA Qinyong. Theory and construction technology of artificial freezing method[M]. Beijing：China Communications Press，2007：265-271.(in Chinese)) " target="_blank">
[11]	李金华，王衍森，李大海，等. 开挖前多圈管冻结时冻结管受力变形的模拟试验研究[J]. 岩土工程学报，2011，33(7)：1 072-1 077. (LI Jinhua，WANG Yansen，LI Dahai，et al. Model tests on stress and deformation of freezing-pipes during multi-circle freezing before excavation[J]. Chinese Journal of Geotechnical Engineering，2011，33(7)：1 072-1 077.(in Chinese))
[12]	王建州，周国庆，徐健，等. 深厚表土层中冻结壁物理模拟试验研究进展[J]. 冰川冻土，2011，33(4)：941-945.(WANG Jianzhou，ZHOU Guoqing，XU Jian，et al. Progress of the research on analog simulation experimentation for frozen wall in deep alluvium[J]. Journal of Glaciology and Geocryology，2011，33(4)：941-945.(in Chinese))
[13]	石荣剑，岳丰田，张勇，等. 使用塑料冻结管的液氮冻结温度场试验研究[J]. 岩石力学与工程学报，2012，31(增1)：2 894-2 899. (SHI Rongjian，YUE Fengtian，ZHANG Yong，et al. Experimental study of temperature field of liquid nitrogen freezing by plastic freezing pipe[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(Supp.1)：2 894-2 899.(in Chinese))
[14]	DIETER R. Artificial ground freezing-theory and application of the method liquid nitrogen[C]// The 6th IIR International Conference on Cryogenics. Prague：[s. n.]，2000：202-203. " target="_blank">
[15]	HARRIS J S. Ground freezing in practice[M]. [S. l.]：Thomas Telford，1995：96-120. " target="_blank">
[16]	胡向东，汪洋. 三排管冻结温度场的势函数叠加法解析解[J]. 岩石力学与工程学报，2012，31(5)：1 071-1 080.(HU Xiangdong，WANG Yang. Analytical solution of three-row-piped frozen temperature field by means of superposition of potential function.[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(5)：1 071- 1 080.(in Chinese))
[17]	杨更社，张晶. 非均匀温度分布冻土墙围护深基坑开挖的有限元数值模拟[J]. 岩石力学与工程学报，2003，22(2)：316-320.(YANG Gengshe，ZHANG Jing. Finite element numerical simulation of deep foundation pit excavation supported by frozen soil wall with nonhomogeneous temperature distribution[J]. Chinese Journal of Rock Mechanics and Engineering，2003，22(2)：316-320.(in Chinese))
[18]	GOLDSTEIN R J，ECKERT E R G，IBELE W E，et al. Heat transfer—a review of 2000 literature[J]. International Journal of Heat and Mass Transfer，2002，45 (1)：2 853-2 957. " target="_blank">
[19]	LEONID B ，REGINA B. A temperature behavior of frozen soils: field experiments and numerical solution[J]. Cold Regions Science and Technology，2012，79 (8)：84-91. " target="_blank">
[20]	LEONID B. A non-instantaneous kinetic model for freezing in porous media[J]. Chemical Engineering and Processing，2008，47(9)：1 631-1 646. " target="_blank">
[21]	徐学祖，王家澄，张立新. 冻土物理学[M]. 北京：科学出版社，2001：75-78.(XU Xuezu，WANG Jiacheng，ZHANG Lixin. Physics of frozen soil[M]. Beijing：Science Press，2001：75-78.(in Chinese)) " target="_blank">
[22]	吴紫汪，赖远明，藏恩穆. 寒区隧道工程[M]. 北京：海洋出版社，2002：29-57.(WU Ziwang，LAI Yuanming，ZANG Enmu. Tunnel engineering in cold regions[M]. Beijing：Ocean Press，2002：29-57. (in Chinese)) " target="_blank">
[23]	刘波，韩彦辉. FLAC原理实例与应用指南[M]. 北京：人民交通出版社，2005：106-109.(LIU Bo，HAN Yanhui. Principle，example and application guide for FLAC[M]. Beijing：China Communications Press，2005：106-109.(in Chinese)) " target="_blank">