季节性冻土地区高速铁路路基冻融变形规律研究

doi:10.13722/j.cnki.jrme.2015.02.021

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Abstract To analyze the roadbed deformation distribution of high-speed railway(HSR) in seasonally frozen regions，thermo-elastic mathematical equations describing the stress and deformation of frozen roadbed were deduced considering ice and water phase transition. A finite element model was built，achieving continuous coupled calculation of geotemperature and deformation. Different frozen-heave ratios were adopted for the filling material along Harbin—Dalian HSR roadbed in deformation and stress analysis. The calculated vertical displacements，transverse deformation differences，horizontal displacements and tensile stress were found to increase with the frozen-heave ratios and frost depths. The calculated surface vertical displacements of roadbed are possible to exceed the allowed values of HSR standard. The calculated tensile failure occurrs in the section of roadbed shoulder and slope，indicating the possible occurrence of cracks. It is also indicated that the variation of the frozen-heave and the thaw-compression ratios caused by the water redistribution inside the roadbed under the action of geotemperature field are the main influencing factors to the deformation and stability of HSR roadbed.

Key words： soil mechanics seasonally frozen region high-speed railway roadbed deformation during freezing and thawing transverse deformation difference frozen-heave ratio

Received: 30 September 2013

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2015.02.021 OR https://rockmech.whrsm.ac.cn/EN/Y2014/V33/I12/2546

[1] 中华人民共和国行业标准编写组. TB10621—2009高速铁路设计规范(试行)[S]. 北京：中国铁道出版社，2009.(The Professional Standards Compilation Group of People?s Republic of China. TB10621—2009 Specifications for plan of high speed railway[S]. Beijing：China Railway Publishing House，2009.(in Chinese)) [2] 毛雪松. 多年冻土地区路基水热力场耦合效应研究[博士学位论文][D]. 西安：长安大学，2004.(MAO Xuesong. Study on the coupled model of moisture-heat-stress fields in the permafrost subgrade[Ph. D. Thesis][D]. Xi?an：Chang?an University，2004.(in Chinese)) [3] 叶阳升，王仲锦，程爱君，等. 路基的填料冻胀分类及防冻层设置[J]. 中国铁道科学，2007，28(1)：1–7.(YE Yangsheng，WANG Zhongjin，CHENG Aijun，et al. Frost heave classification of railway subgrade filling material and the design of anti freezing layer[J]. China Railway Science，2007，28(1)：1–7.(in Chinese)) [4] 许健，牛富俊，李爱敏，等. 季节冻土区保温法抑制铁路路基冻胀效果研究[J]. 铁道学报，2010，32(6)：124–131.(XU Jian，NIU Fujun，LI Aimin，et al. Analysis of the prevention effect of thermal-insulation method on frost heave of railway subgrade in seasonal frozen regions[J]. Journal of the China Railway Society，2010，32(6)：124–131.(in Chinese)) [5] 许健，牛富俊，牛永红，等. 换填法抑制季节冻土区铁路路基冻胀效果分析[J]. 中国铁道科学，2011，32(5)：1–7.(XU Jian，NIU Fujun，NIU Yonghong，et al. Analysis on the effect of replacing-soil method on inhibiting frost heave of railway roadbed in seasonal frozen soil region[J]. China Railway Science，2011，32(5)：1–7.(in Chinese)) [6] YUE Z R，WANG T L，MA C，et al. Frost heave control of fine round gravel fillings in deep seasonal frozen regions[J]. Sciences in Cold and Arid Regions，2013，5(4)：425–432. [7] 王天亮，岳祖润. 细粒含量对粗粒土冻胀特性影响的试验研究[J]. 岩土力学，2013，34(2)：359–364.(WANG Tianliang，YUE Zurun，Influence of fines content on frost heaving properties of coarse grained soil[J]. Rock and Soil Mechanics，2013，34(2)：359–364.(in Chinese)) [8] 石刚强，王珣. 哈大铁路客运专线路基填料冻胀性试验研究[J]. 铁道建筑，2011，(10)：61–63.(SHI Gangqiang，WANG Xun. Frost heaving experiment study on roadbed fillings of Harbin—Dalian passenger-dedicated line[J]. Railway Engineering，2011，(10)：61–63.(in Chinese)) [9] KONRAD J M. Freezing-induced water migration in compacted base-course materials[J]. Canadian Geotechnical Journal，2008，45(7)：895–909. [10] KONRAD J M，LEMIEUX N. Influence of fines on frost heave characteristics of a well-graded base-course material[J]. Canadian Geotechnical Journal，2005，42(2)：515–527. [11] 李萍，徐斅祖，陈峰峰. 冻结缘和冻胀模型的研究现状与进展[J]. 冰川冻土，2000，22(1)：90–95.(LI Ping，XU Xiaozu，CHEN Fengfeng. State and progress of research on the frozen fringe and frost heave prediction models[J]. Journal of Glaciology and Geocryology，2000，22(1)：90–95.(in Chinese)) [12] HARLAN R L. Analysis of coupled heat-fluid transport in partially frozen soil[J]. Water Resources Research，1973，9(5)：1 314–1 323. [13] HOPKE S W. A model for frost heave including overburden[J]. Cold Region Science and Technology，1980，3(2/3)：111–127. [14] SHEN M，LADANYI B. Modeling of coupled heat，moisture and stress field in freezing soil[J]. Cold Regions Science and Technology，1987，14(3)：237–246. [15] 王铁行，李宁，谢定义. 土体水热力耦合问题研究意义、现状及建议[J]. 岩土力学，2005，26(3)：488–493.(WANG Tiehang，LI Ning，XIE Dingyi. Necessity and means in research on soil coupled heat-moisture-stress issues[J]. Rock and Soil Mechanics，2005，26(3)：488–493.(in Chinese)) [16] 王铁行，胡长顺，李宁. 冻土路基应力变形数值模型[J]. 岩土工程学报，2002，24(2)：193–197.(WANG Tiehang，HU Changshun，LI Ning. Stress-strain numerical model for frozen soil subgrade[J]. Chinese Journal of Geotechnical Engineering，2002，24(2)：193–197.(in Chinese)) [17] 李宁，陈波，陈飞熊. 寒区复合地基的温度场、水分场与变形场三场耦合模型[J]. 土木工程学报，2003，36(10)：66–71.(LI Ning，CHEN Bo，CHEN Feixiong. Heat-moisture-deformation coupled model for composite foundation in cold zone[J]. China Civil Engineering Journal，2003，36(10)：66–71.(in Chinese)) [18] 毛雪松，李宁，王秉纲，等. 考虑相变作用的冻土路基应力与变形分析模型[J]. 交通运输工程学报，2007，7(1)：58–62.(MAO Xuesong，LI Ning，WANG Binggang，et al. Analysis model of stress and deformation of permafrost subgrade with phase changing[J]. Journal of Traffic and Transportation Engineering，2007，7(1)：58–62.(in Chinese)) [19] 王铁行. 多年冻土地区路基冻胀变形分析[J]. 中国公路学报，2005，18(2)：1–5.(WANG Tiehang. Analysis of frost heave on subgrade in permafrost regions[J]. China Journal of Highway and Transport，2005，18(2)：1–5.(in Chinese)) [20] 张旭芝. 高原多年冻土涵洞温度场及地基土冻融变形规律研究[硕士学位论文][D]. 长沙：中南大学，2007.(ZHANG Xuzhi. Study on temperature fields and frost heave and thaw settlement of railway culvert in permafrost region[M. S. Thesis][D]. Changsha：Central South University，2007.(in Chinese)) [21] 张玉芝，杜彦良，孙宝臣. 季节性冻土地区高速铁路路基地温分布规律及稳定性分析[J]. 岩石力学与工程学报，2014，33(6)：1 286– 1 296.(ZHANG Yuzhi，DU Yanliang，SUN Baochen. Geotemperature distribution and stability analysis of high-speed railway roadbed in seasonally frozen regions[J]. Chinese Journal of Rock Mechanics and Engineering，2014，33(6)：1 286–1 296.(in Chinese)) [22] 顾泽同，葛永乐，翁中杰，等. 工程热应力[M]. 北京：国防工业出版社，1987：111–205.(GU Zetong，GE Yongle，WENG Zhongjie，et al. Engineering thermal stress[M]. Beijing：National Defense Industry Press，1987：111–205.(in Chinese)) [23] 王洪刚. 热弹性力学概论[M]. 北京：清华大学出版社，1998：391–422.(WANG Honggang. An introduction to thermoelasticity[M]. Beijing：Tsinghua University Press，1998：391–422.(in Chinese)) [24] 中华人民共和国行业标准编写组. JGJ118—98冻土地区建筑地基基础设计规范[S]. 北京：中国建筑工业出版社，1998.(The Professional Standards Compilation Group of People?s Republic of China. JGJ118—98 Code for design of soil and foundation of building in frozen soil region[S]. Beijing：China Architecture and Building Press，1998.(in Chinese)) [25] 姜龙，冷毅飞，张喜发，等. 冻土融沉系数的经验确定方法[J]. 工程勘察，2011，(5)：22–25.(JIANG Long，LENG Yifei，ZHANG Xifa，et al. The empirical method on thawing settlement coefficient of frozen soil[J]. Geotechnical Investigation and Surveying，2011，(5)：22–25.(in Chinese)) [26] 杨凤学，张喜发，冷毅飞，等. 冻土融化体积压缩系数的经验确定方法[J]. 岩土力学，2011，32(11)：3 432–3 436.(YANG Fengxue，ZHANG Xifa，LENG Yifei，et al. Empirical method for determining thawing volume compression coefficient of frozen soil[J]. Rock and Soil Mechanics，2011，32(11)：3 432–3 436.(in Chinese)) [27] 吴镇，岳祖润，王天亮. 哈齐客专细圆砾土冻结温度测试分析[J]. 石家庄铁道大学学报：自然科学版，2013，26(1)：37–40.(WU Zhen，YUE Zurun，WANG Tianliang. Test analysis on freezing temperature of fine round gravel soil in Harbin——Qiqihaer railway[J]. Journal of Shijiazhuang Tiedao University：Natural Science，2013，26(1)：37–40. (in Chinese)) [28] 吴紫汪，马巍. 冻土强度与蠕变[M]. 兰州：兰州大学出版社，1994：40–55.(WU Ziwang，MA Wei. Strength and creep of frozen soil[M]. Lanzhou：Lanzhou University Press，1994：40–55.(in Chinese)) [29] 闫明礼，曲秀莉，刘伟，等. 复合地基的复合模量分析[J]. 建筑科学，2004，20(4)：27–32.(YAN Mingli，QU Xiuli，LIU Wei，et al. Composite modulus analysis of composite foundation[J]. Building Science，2004，20(4)：27–32.(in Chinese))