渗流作用下人工冻结特性室内模型试验研究

doi:10.13722/j.cnki.jrme.2022.0651

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (1922 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要人工冻结法凭借其封水性好、适应范围广和对环境影响小等优势已得到广泛应用，但地下水渗流会严重影响冻结效果，且设计规范中尚未考虑渗流对人工冻结的影响。为研究渗流作用下地层人工冻结特性，基于自主研发的渗流地层双管冻结物理模型试验系统，对不同渗流速度和温度梯度下人工冻结过程开展室内模型试验研究。通过模型试验揭示进出口水温差、冷量交换率和温度场随地层初始温度、冷媒温度和渗流速度变化的发展规律，提出不同温度梯度和渗流速度下的交圈时间和临界渗流速度确定方法，确定3组试验的交圈临界渗流速度分别为16.81，10.22和13.33 m/d，剖析冻结壁形状、厚度和平均温度等特性随温度梯度、地下水渗流速度变化规律。研究成果可为渗流条件下人工冻结技术应用及设计提供参考。

	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
	孙立强1
	时鹏1
	郎瑞卿2
	3
	商安策1

关键词 ：渗流力学, 人工冻结, 温度场, 冻结壁, 模型试验

Abstract：Artificial freezing method has been widely because of its good water sealing property，wide adaptability and small impact on the environment. However，groundwater seepage will seriously affect the freezing effect，and the influence of seepage on artificial freezing has not been considered in the design code. In order to study the characteristics of artificial freezing under seepage，indoor model tests of artificial freezing process under different seepage velocity and temperature gradient were carried out based on the self-developed double pipe freezing physical model test system. Through the model tests，the development laws of the temperature difference of inlet and outlet water，the cooling capacity exchange rate and temperature field changing with the initial temperature of the ground layer，the temperature of the refrigerant and the seepage velocity are revealed. The intersection time and the critical seepage velocity under different temperature gradients and seepage velocities are determined. The critical flow velocities of the three tests are 16.81，10.22 and 13.33 m/d. Furthermore，the changes of the shape，thickness and average temperature of the frozen wall with the temperature gradients and the seepage velocity of groundwater are analyzed. The research results can provide reference for the application and design of artificial freezing technology under seepage conditions.

Key words： seepage mechanics artificial freezing temperature field frozen wall model tests

引用本文:

孙立强1，时鹏1，郎瑞卿2，3，商安策1. 渗流作用下人工冻结特性室内模型试验研究[J]. 岩石力学与工程学报, 2024, 43(S1): 3530-3542.
SUN Liqiang1，SHI Peng1，LANG Ruiqing2，3，SHANG Ance1. Laboratory model test on artificial freezing characteristics of sand layer under seepage. , 2024, 43(S1): 3530-3542.

链接本文:

http://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2022.0651 或 http://rockmech.whrsm.ac.cn/CN/Y2024/V43/IS1/3530

[19]	ZHOU M M，MESCHKE G. A multiscale homogenization model for strength predictions of fully and partially frozen soils[J]. Acta Geotechnica，2017，13：175-193.
[1]	RUSSO G，CORBO A，CAVUOTO F，et al. Artificial ground freezing to excavate a tunnel in sandy soil. Measurements and back analysis[J]. Tunnelling and Underground Space Technology，2015，50：226-238.
[3]	VITEL M，ROUABHI A，TIJANI M，et al. Modeling heat and mass transfer during ground freezing subjected to high seepage velocities[J]. Computers and Geotechnics，2016，73：1-15.
[5]	PIMENTEL E，SRES A，ANAGNOSTOU G. Large-scale laboratory tests on artificial ground freezing under seepage-flow conditions[J]. Geotechnique，2012，62(3)：227-241.
[9]	单仁亮，刘伟俊，柴高竣，等. 渗流作用下局部水平冻结体扩展规律试验研究[J]. 煤炭学报，2019，44(增2)：526-534.(SHAN Renliang，LIU Weijun，CHAI Gaojun，et al. Experimental study on the expansion law of local horizontal frozen body under seepage[J]. Journal of China Coal Society，2019，44(Supp. 2)：526-534.(in Chinese))
[11]	WANG B，RONG C X，CHENG H，et al. Experimental investigation on heat transfer law of multiple freezing pipes in permeable stratum with high seepage velocity[J]. International Journal of Heat and Mass Transfer，2022，(182)：121868.
[13]	ALZOUBI M A，AURELIEN N R，SASMITO A P. Conjugate heat transfer in artificial ground freezing using enthalpy-porosity method：experiments and model validation[J]. International Journal of Heat and Mass Transfer，2018，126：740-752.
[15]	HUANG S B，GUO Y L，LIU Y Z，et al. Study on the influence of water flow on temperature around freeze pipes and its distribution optimization during artificial ground freezing[J]. Applied Thermal Engineering，2018，135：435-445.
[4]	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]	李方政，丁航，张绪忠. 渗流作用下富水砂层双排管冻结壁形成规律模型试验研究[J]. 岩石力学与工程学报，2019，38(2)：386-395.(LI Fangzheng，DING Hang，ZHANG Xuzhong. Model test research of formation law of double-row-pipe freezing wall in water rich sand layer under seepage[J]. Chinese Journal of Rock Mechanics and Engineering，2019，38(2)：386-395.(in Chinese))
[6]	SUDISMAN R A，OSADA M，YAMABE T. Experimental investigation on effects of water flow to freezing sand around vertically buried freezing pipe[J]. Journal of Cold Regions Engineering，2019，33(3)：04019004.
[14]	HU R，LIU Q，XING Y. Case study of heat transfer during artificial ground freezing with groundwater flow[J]. Water，2018，10(10)：1 322.
[16]	张晋勋，亓轶，杨昊，等. 北京砂卵石地层盆形冻结的温度场扩展规律研究[J]. 岩土力学，2020，41(8)：2 796-2 804.(ZHANG Jinxun，QI Yi，YANG Hao，et al. Temperature field expansion of basin-shaped freezing technology in sandy pebble stratum of Beijing[J]. Rock and Soil Mechanics，2020，41(8)：2 796-2 804.(in Chinese))
[17]	黄诗冰，刘泉声，程爱平，等. 低温裂隙岩体水-热耦合模型研究及数值分析[J]. 岩土力学，2018，39(2)：735-744.(HUANG Shibing，LIU Quansheng，CHENG Aiping，et al. A coupled hydrothermal model of fractured rock mass under low temperature and its numerical analysis[J]. Rock and Soil Mechanics，2018，39(2)：735-744.(in Chinese))
[2]	MARWAN A，ZHOU M-M，ZAKI ABDELREHIM M，et al. Optimization of artificial ground freezing in tunneling in the presence of seepage flow[J]. Computers and Geotechnics，2016，75：112-125.
[12]	周洁，李泽垚，万鹏，等. 组合地层渗流对人工地层冻结法及周围工程环境效应的影响[J]. 岩土工程学报，2021，43(3)：471-480.(ZHOU Jie，LI Zeyao，WAN Peng，et al. Effects of seepage in clay-sand composite strata on artificial ground freezing and surrounding engineering environment[J]. Chinese Journal of Geotechnical Engineering，2021，43(3)：471-480.(in Chinese))
[10]	荣传新，王彬，程桦，等. 大流速渗透地层人工冻结壁形成机制室内模型试验研究[J]. 岩石力学与工程学报，2022，41(3)：596-613.(RONG Chuanxin，WANG Bin，CHENG Hua，et al. Laboratory model test study on formation mechanisms of artificial frozen walls in permeable strata with high seepage velocity[J]. Chinese Journal of Rock Mechanics and Engineering，2022，41(3)：596-613.(in Chinese))
[20]	刘建刚，刘泉，周冬冬，等. 地下水横向水平流速对人工水平冻结壁形成的影响[J]. 应用基础与工程科学学报，2017，25(2)：258-265.(LIU Jiangang，LIU Quan，ZHOU Dongdong，et al. Influence of groundwater transverse horizontal flow velocity on the formation of artificial horizontal freezing wall[J]. Journal of Basic Science and Engineering，2017，25(2)：258-265.(in Chinese))
[8]	刘伟俊，张晋勋，单仁亮，等. 渗流作用下北京砂卵石地层多排管局部水平冻结体温度场试验[J]. 岩土力学，2019，40(9)：3 425-3 434. (LIU Weijun，ZHANG Jinxun，SHAN Renliang，et al. Experimental study on temperature field of the multi-row-pipe partial horizontal freezing body in Beijing sandy cobble stratum under seepage[J]. Rock and Soil Mechanics，2019，40(9)：3 425-3 434.(in Chinese))
[18]	HUANG S B，LIU Q S，CHENG A P，et al. A fully coupled thermo-hydro-mechanical model including the determination of coupling parameters for freezing rock[J]. International Journal of Rock Mechanics and Mining Sciences，2018，103：205-214.