冻融-渗流耦合作用下土质边坡稳定研究进展
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摘要
寒区土质渠道边坡春融期降雨及融雪形成的渗流严重影响渠道安全,近年来国内外学者对冻融循环后土体物理力学特性以及饱和-非饱和渗流的研究越来越多。为了更好地对冻融-渗流耦合作用下土质边坡稳定性进行研究,在前人研究的基础上,对目前冻融-渗流耦合作用下土质边坡稳定研究进展进行了全面总结,文章主要分析介绍了冻融循环对土体渗透系数的影响,并论述了饱和-非饱和渗流理论、降雨及融雪入渗理论的研究进展。最后,通过国内外对冻融-渗流耦合作用下土质边坡稳定研究现状,对寒区土质渠道边坡春融期边坡稳定性研究进行总结和展望。
The safety of soil channel is seriously affected by rainfall and snow during spring thawing in cold region.In recent years,more and more scholars have studied the physical and mechanical properties of soil and saturated-unsaturated seepage after freeze-thaw cycle.In order to study the stability of soil slope under the coupling of freeze-thawing and percolation,based on the previous researches,the research progress of soil slope stability under the coupling of freeze-thaw and percolation is summarized in this paper.In this paper,the influence of freeze-thaw cycle on soil permeability coefficient is analyzed,and the research progress of saturated-unsaturated seepage theory,rainfall and snowmelt infiltration theory is discussed.Finally,through the domestic The present situation of soil slope stability under the coupling of freeze-thawing and percolation is summarized and the stability of soil channel slope in cold region during spring thawing period is summarized and prospected.
The safety of soil channel is seriously affected by rainfall and snow during spring thawing in cold region.In recent years,more and more scholars have studied the physical and mechanical properties of soil and saturated-unsaturated seepage after freeze-thaw cycle.In order to study the stability of soil slope under the coupling of freeze-thawing and percolation,based on the previous researches,the research progress of soil slope stability under the coupling of freeze-thaw and percolation is summarized in this paper.In this paper,the influence of freeze-thaw cycle on soil permeability coefficient is analyzed,and the research progress of saturated-unsaturated seepage theory,rainfall and snowmelt infiltration theory is discussed.Finally,through the domestic The present situation of soil slope stability under the coupling of freeze-thawing and percolation is summarized and the stability of soil channel slope in cold region during spring thawing period is summarized and prospected.
引文
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[3]Zou Y.A macroscopic model for predicting the relative hydraulic permeability of unsaturated soils[J].Acta Geotechnica,2012,7(2):129-137.
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[5]陈昌富,李树伟.基于GDS系统的非饱和土渗透试验方法研究[J].岩土工程技术,2009,23(5):255-257.
[6]李晓云,徐连民,李帅,等.基于GDS的非饱和土强度三轴试验研究[J].灾害与防治工程,2008,39(14):25-29.
[7]金钰梅.冻土边坡降雨入渗机理研究[D].北京:北京交通大学,2012.
[8]Mualem Y.A new model for predicting the hydraulic conductivity of unsaturated porous media[J].Water Resources Research,1976,12(3):513-522.
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[13]张侠.冻融循环对压实黄土的水分重分布、变形和密度影响试验研究[D].兰州:兰州理工大学,2010.
[14]汪恩良,姜海强,付强,等.冻融对饱和渠基土物理力学性质的影响[J].农业机械学报,2018,49(3):287-294.
[15]杨成松,何平,程国栋,等.冻融实验对土中含水量分布的影响[J].冰川冻土,2004,26(S1):50-55.
[16]刘兵.土中水分在冻融过程中的迁移[D].哈尔滨:哈尔滨工业大学,2008.
[17]胡田飞,刘建坤,房建宏,等.冻融循环下含水率对粉质黏土力学性质影响试验[J].哈尔滨工业大学学报,2017,49(12):123-130.
[18]汪恩良,姜海强,李冬凯,等.冻融循环模拟试验箱的研制与应用[J].低温与超导,2017(7):86-91.
[19]齐吉琳,程国栋,Vermeer P A.冻融作用对土工程性质影响的研究现状[J].地球科学进展,2005,20(8):887-894.
[20]Viklander P.Permeability and volume changes in till due to cyclic freeze/thaw[J].Canadian Geotechnical Journal,1998,35(3):471-477.
[21]肖俊波,孙宝洋,李占斌,等.冻融循环对风沙土物理性质及抗冲性的影响试验[J].水土保持学报,2017,31(2):67-71.
[22]Chamberlain E J,Gow A J.Effect of freezing and thawing on the permeability and structure of soils[J].Engineering Geology,1979,13(1):73-92.
[23]Othman Majdi A,Benson Craig H.Effect of freeze-thaw on the hydraulic conductivity and morphology of compacted clay[J].Canadian GeotechnicalJournal,1993,30(2):236-246.
[24]Yu J,Chen X,Li H,et al.Effect of freeze-thaw cycles on mechanical properties and permeability of red sandstone under triaxial compression[J].山地科学学报(英文),2015,12(1):218-231.
[25]陈文,梁英杰,杨旭.基于Hausdorff分形导数Richards方程的土壤入渗率和水文模型类型[J].应用数学和力学,2018,39(1):77-82.
[26]Genuchten M T V.A closed-form equation for predicting the hydraulic conductivity of unsaturated soils[J].Soil Science Society of America Journal,1980,44(44):892-898.
[27]严飞,詹美礼,速宝玉.饱和-非饱和渗流计算参数分析[J].长江科学院院报,2004,21(5):28-31.
[28]孙冬梅,朱岳明,张明进,等.考虑气相影响的降雨入渗过程分析研究[J].岩土力学,2008,29(9):2307-2313.
[29]廖红建,姬建,曾静.考虑饱和-非饱和渗流作用的土质边坡稳定性分析[J].岩土力学,2008,29(12):3229-3234.
[30]吴良骥,Bloomaburg G L.饱和-非饱和区中渗流问题的数值模型[J].水利水运工程学报,1985(2):3-14.
[31]朱学愚,谢春红,钱孝星.非饱和流动问题的SUPG有限元数值解法[J].水利学报,1994,6(6):37-42.
[32]陈虹,陈彤.堤坝饱和-非饱和渗流数值模拟[J].水动力学研究与进展,1997,12(3):356-364.
[33]王继华.降雨入渗条件下土坡水土作用机理及其稳定性分析与预测预报研究[D].长沙:中南大学,2006.
[34]王佳佳,殷坤龙,杜娟,等.基于GIS考虑准动态湿度指数的滑坡危险性预测水文-力学耦合模型研究[J].岩石力学与工程学报,2013,32(S2):3868-3877.
[35]Chue Y S,Chen J W,Chen Y R.Rainfall-induced slope landslide pontential and landslide distribution characteristics assessment[J].Journal of Marine Science&Technology,2015,23(5):705-716.
[36]唐扬,殷坤龙,汪洋,等.斜坡降雨入渗的改进Mein-Larson模型[J].地球科学,2017,42(4):634-640.
[37]钟佩文,张慧莉,田堪良,等.持续降雨入渗对黄土边坡稳定性的影响[J].人民黄河,2018,40(1):76-81.
[38]王建新.降雨非饱和入渗过程的水势描述及理论模型研究与应用[D].北京:清华大学,2010.
[39]荣冠,张伟,周创兵.降雨入渗条件下边坡岩体饱和非饱和渗流计算[J],岩土力学,2005,26(10):1545-1550.
[40]孙冬梅,朱岳明,张明进.非饱和带水-气二相流数值模拟研究[J].岩土工程学报,2007,29(4):560-565.
[41]付宏渊,谢琳,曾铃.融雪入渗条件下边坡渗流分析[J].公路与汽运,2014(3):132-136.
[42]戴长雷,孙思森,叶勇.高寒区土壤包气带融雪入渗特征及其影响因素分析[J].水土保持研究,2010,17(3):269-274.
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