北京砂卵石地层渗流条件下多排管局部冻结水平板成形规律研究

doi:10.13722/j.cnki.jrme.2019.1010

Abstract
Figure/Table
References (0)
Related Citation (15)

Download: PDF (2892 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Basin-shaped freezing technology is a water-proofing technology applied to underground excavation subway station in sandy gravel stratum，with the basin wall and basin bottom acting together to form a closed sealing space，the basin bottom uses comb freezing method to form a horizontal frozen plate. In this paper，based on the physical model test，numerical simulation is used to analyze freezing rules and the temperature field development of comb freezing method under seepage condition. The numerical model can effectively reflect the freezing shaping evolution of comb freezing，and the simulation results are in good agreement with the physical model test. Research finds that：(1) In the process of comb freezing under seepage condition，firstly，the frozen area develops along the flow direction，then the last row of freezing pipes on the back-water surface intersect in the direction of vertical flow and finally，the frozen area develops from the back-water surface to front-water surface and forms a closed horizontal frozen plate. Meanwhile，the effective thickness of the horizontal frozen plate is lost to some extent due to the flow around front-water surface. (2) The temperature field in the main frozen area shows a droplet shape along the direction of the flow，and the low temperature part is basically symmetrical distribution centered on the third row of freezing pipes，the temperature field in the vertical flow direction is symmetrical distribution centered on the middle row freezing pipes，and the temperature gradually increases from the core low temperature area to the surrounding areas，and the temperature at the middle of the freezing tube is lower than that at the end.

Key words： underground engineering basin-shaped freezing technology comb freezing method sandy gravel stratum seepage underground excavation subway station

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	ZHANG Jinxun
	QI Yi
	YANG Hao
	ZHANG Lei

Cite this article:

ZHANG Jinxun,QI Yi,YANG Hao, et al. Formation rules of horizontal frozen plate with multiple rows in Beijing sandy gravel stratum under seepage condition[J]. , 2020, 39(S1): 3188-3196.

URL:

http://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2019.1010 OR http://rockmech.whrsm.ac.cn/EN/Y2020/V39/IS1/3188

[7]	石荣剑，陈斌，岳丰田，等. 盾构地中对接冻结加固模型试验(II)——冻结过程中地层的冻胀效应研究[J]. 岩土力学，2017，38(9)：2 639–2 646.(SHI Rongjian，YUE Fengtian，ZHANG Yong，et al. Model test on freezing reinforcement for shield junction (Part2)：Frost heave effect of soft stratum during freezing process[J]. Rock and Soil Mechanics，2017，38(9)：2 639–2 646.(in Chinese))
[9]	张晋勋，单仁亮，郭志明，等. 砂卵石地层“盆形”冻结温度场扩展规律数值分析[J]. 西安科技大学学报，2018，38(2)：291–299.(ZHANG Jinxun，SHAN Renliang，GUO Zhiming，et al. Numerical analysis on propagation rules of “basin-shaped” freezing temperature filed in sandy gravel stratum[J]. Journal of Xi’an University of Science and Technology，2018，38(2)：291–299.(in Chinese))
[11]	周晓敏. 水渗流作用下人工冻结壁形成规律的模型试验及耦合场有限元仿真研究[博士学位论文][D]. 北京：北京交通大学，2004.(ZHOU Xiaomin．Model test and coupled field finite element simulation study on the formation law of artificial frozen wall under the action of water seepage[Ph. D. Thesis][D]. Beijing：Beijing Jiaotong University，2004.(in Chinese))
[17]	肖朝昀，胡向东，张庆贺. 多排管局部冻结冻土壁温度场特性[J]. 岩石力学与工程学报，2007，26(增1)：2 694–2 700.(XIAO Zhaojun，HU Xiangdong，ZHANG Qinghe. Characters of temperature field in frozen soil wall with multirow freeze-tubes and limited depth freezing[J]. Chinese Journal of Rock Mechanics and Engineering. 2007，26(Supp.1)：2 694–2 700.(in Chinese))
[19]	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，2007：106–121.(MA Qinyong. Theory and construction technology of artificial freezing method[M]. Beijing：China Communications Press，2007：106–121.(in Chinese))
[15]	周晓敏. 冻结管在冻结壁变形段内的受力计算[J]. 煤炭学报，1996，21(1)：30–34.(ZHOU Xiaomin. Stressing of freeze pipe in the deformed section of ice wall[J]. Journal of China Coal Society，1996，21(1)：30–34.(in Chinese))
[3]	李大勇，吕爱钟，张庆贺，等. 南京地铁旁通道冻结实测分析研究[J]. 岩石力学与工程学报，2004，23(2)：334–338.(LI Dayong，LV Aizhong，ZHANG Qinghe，et al. Analysis of freezing method for construction of connected aisle in Nanjing metro tunnels[J]. Chinese Journal of Rock Mechanics and Engineering，2004，23(2)：334–338. (in Chinese))
[6]	石荣剑，岳丰田，张勇，等. 盾构地中对接冻结加固模型试验(I)——冻结过程中地层冻结温度场的分布特征[J]. 岩土力学，2017，38(2)：368–376.(SHI Rongjian，YUE Fengtian，ZHANG Yong，et al. Model test on freezing reinforcement for shield junction，Part 1：Distribution characteristics for shield junction soil stratum during freezing process[J]. Rock and Soil Mechanics，2017，38(2)：368–376.(in Chinese))
[8]	张晋勋，江华，江玉生，等. 一种城市敏感区域暗挖基坑内部冻结造底止水结构及方法[P]. 中国：CN106120827A，2016–11–16.( ZHANG Jinxun，JIANG Hua，JIANG Yusheng，et al. A structure and method for freezing foundation and sealing water in underground excavation of urban sensitive area[P]. China：CN106120827A，2016–11–16.(in Chinese))
[10]	杨昊. 北京地区深基坑建设典型地层冻结止水技术研究[R]. 北京：北京城建集团博士后工作站，2018.(YANG Hao. Research on AGF technology used in water prevention of deep foundation in Beijing typical stratum[R]. Beijing：Postdoctoral Workstation of Beijing Urban Construction Group，2018.(in Chinese))
[13]	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))
[16]	杨维好，黄家会. 外壁恒温条件下冻结管壁热流密度变化规律数值计算研究[J]. 冰川冻土，2006，28(3)：99–103.(YANG Weihao，HUANG Jiahui. Numerical analysis on the heat flux density of a freezing pipe with constant outer surface temperature[J]. Journal of Glaciology and Geocryology，2006，28(3)：99–103.(in Chinese))
[18]	高娟，冯梅梅，杨维好. 渗流作用下裂隙岩体冻结温度场分布规律研究[J]. 采矿与安全工程学报，2013，30(1)：68–73.(GAO Juan，FENG Meimei，YANG Weihao. Research on distribution law of frozen temperature field of fractured rock mass with groundwater seepage[J]. Journal of Mining and Safety Engineering，2013，30(1)：68–73.(in Chinese))
[1]	陈湘生. 地层冻结法[M]. 北京：人民交通出版社，2014：1–3(CHEN Xiangsheng. Ground freezing method[M]. Beijing：The People's Communication Publishing Company，2014：1–3.(in Chinese))
[2]	岳丰田，张勇，杨国祥，等. 隧道联络通道冻结位移场模型试验研究[J]. 中国矿业大学学报，2005，34(2)：209–212.(YUE Fengtian，ZHANG Yong，YANG Guoxiang，et al. Research on front heave deformation of connection passages in adjacent tunnel by modeling test[J]. Journal of China University of Mining and Technology，2005，34(2)：209–212.(in Chinese))
[4]	袁云辉，杨平. 冻结加固盾构端头土体温度场数值分析[J]. 地下空间与工程学报，2010，6(5)：1 053–1 059.(YUAN Yunhui，YANG Ping. Numerical analysis of soil thermal field in freezing reinforcement of shield arriving[J]. Chinese Journal of Underground Space and Engineering，2010，6(5)：1 053–1 059.(in Chinese))
[12]	周晓敏，肖龙阁. 渗流地层人工冻结温度场和渗流场之数值研究[J]. 煤炭学报，2007，32(1)：24–28.(ZHOU Xiaomin，XIAO Longge. Numerical research on the temperature and seepage fields of artificial seepage ground freezing[J]. Journal of China Coal Society，2007，32(1)：24–28.(in Chinese))
[5]	胡向东，程烨尔. 盾构尾刷冻结法更换的温度场数值分析[J]. 岩石力学与工程学报，2009，28(增2)：3 516–3 525.(HU Xiangdong，CHENG Yeer. Numerical analysis of temperature field during replacement of shield tail brush by freezing method[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(Supp.2)：3 516–3 525.(in Chinese))
[14]	郭兰波，庞荣庆，史文国. 竖井冻结壁温度场的有限元分析[J]. 中国矿业学院学报，1981，(3)：42–60.(GUO Lanbo，PANG Rongqing，SHI Wenguo. Finite element analysis of temperature field of shaft freezing wall [J]. Journal of China Institute of Mining Technology，1981，(3)：42–60.(in Chinese))