地表水沿裂缝带入渗对路基路面的影响
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摘要
针对地表水沿断裂及地裂缝带入渗引起的地表不均匀差异沉降变形对公路路基路面的影响,在综合分析地表水入渗作用机理的基础上,运用大型通用岩土数值分析软件MIDAS/GTS,研究了地裂缝、活断层环境下地表水入渗对公路路基路面的影响效应。研究结果表明,路基底面在公路重力作用下将随着地表一起下沉,路基底面的变形曲线与地面的沉降曲线基本一致,路面及路基底面的受力状态主要由地表不均匀沉降曲线控制。
In order to study the change of surface differential settlement when surface water infiltrate fissure to subgrade and pavement structure,based on in-situ permeability test and finite element software MIDAS /GTS,the influence was analyzed and tested.The results show that the basement will sink together with road surface on the gravity of highway,and its deformation is identical with the ground settlement curve,the stress state of the road is under control of uneven surface subsidence curve.1 tab,8 figs,16 refs.
In order to study the change of surface differential settlement when surface water infiltrate fissure to subgrade and pavement structure,based on in-situ permeability test and finite element software MIDAS /GTS,the influence was analyzed and tested.The results show that the basement will sink together with road surface on the gravity of highway,and its deformation is identical with the ground settlement curve,the stress state of the road is under control of uneven surface subsidence curve.1 tab,8 figs,16 refs.
引文
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[11]谭桔红,晏鄂川.水与裂隙对边坡稳定性的影响分析及工程应用[J].山地学报,2004,22(3):373-377.TAN Ju-hong,YAN E-chuan.Influence and implica-tion of water and fissure on slope stability[J].Journalof Mountain Science,2004,22(3):373-377.
[12]李亮.地裂缝带黄土的渗透变形试验研究[D].西安:长安大学,2007.
[13]JTJ 034—2000,公路路面基层施工技术规范[S].
[14]王福恒,李家春,田伟平.黄土边坡降雨入渗规律试验[J].长安大学学报:自然科学版,2009,29(4):20-24.WANG Fu-heng,LI Jia-chun,TIAN Wei-ping.Teston rainfall filtration in loess slope[J].Journal ofChang an University:Natural Science Edition,2009,29(4):20-24.
[15]彭小云,叶万军,折学森,等.黄土沟壑区湿软路基沉降预测模型[J].交通运输工程学报,2007,7(2):70-75.PENG Xiao-yun,YE Wan-jun,SHE Xue-sen,et al.Settlement prediction model of wettest-soft loess sub-grade in ravine regions[J].Journal of Traffic andTransportation Engineering,2007,7(2):70-75.
[16]王伟,孙斌祥,卢廷浩.公路路堤软土地基工后沉降的三参数预估模型[J].中国公路学报,2008,21(2):12-17.WANG Wei,SUN Bing-xiang,LU Ting-hao.3 param-eter prediction model of post-construction settlementfor soft soil foundation under highway embankment[J].China Journal of Highway and Transport,2008,21(2):12-17.
[2]王启耀,蒋臻蔚,彭建兵.全新活动断裂和地裂缝对公路工程的影响及对策[J].公路,2006(2):104-108.WANG Qi-yao,JIANG Zhen-wei,PENG Jian-bing.Influence of recently active fault and ground ruptureon highway engineering and prevention and curemeasures[J].Highway,2006(2):104-108.
[3]孙萍.黄土破裂特性试验研究[D].西安:长安大学,2007.
[4]吴耀国,沈照理,钟佐燊,等.矿井水污染的地表水灌溉入渗过程中的水岩作用[J].煤田地质与勘探,2004,32(3):38-40.WU Yao-guo,SHEN Zhao-li,ZHONG Zuo-shen,etal.Water-rock interaction during irrigation with pollu-ted water by coal mine drainage[J].Coal Geology&Exploration,2004,32(3):38-40.
[5]黄涛,罗喜元,邬强,等.地表水入渗环境下边坡稳定性的模型试验研究[J].岩石力学与工程学报,2004,23(16):2671-2675.HUANG Tao,LUO Xi-yuan,WU Qiang,et al.Modeltesting study on slope stability under environment ofsurface water permeation[J].Chinese Journal of RockMechanics and Engineering,2004,23(16):2671-2675.
[6]虞挺,吴道尧.渗流水对路基稳定的影响分析[J].水运工程,2007(6):90-93.YU Ting,WU Dao-yao.Influence of seepage wateron subgrade s stability[J].Port&Waterway Engi-neering,2007(6):90-93.
[7]朱文彬,刘宝琛.降雨条件下土体滑坡的有限元数值分析[J].岩石力学与工程学报,2002,21(4):509-512.ZHU Wen-bin,LIU Bao-chen.Forming and develop-ment process of soil landslide during rainfall[J].Chi-nese Journal of Rock Mechanics and Engineering,2002,21(4):509-512.
[8]张西娟,曾庆利,马寅生.断裂带中的流体活动及其作用[J].西北地震学报,2006,28(3):274-279.ZHANG Xi-juan,ZENG Qing-li,MA Yin-sheng.Flu-id involvement in active fault zone[J].NorthwesternSeismological Journal,2006,28(3):274-279.
[9]Sun Y,Nishigaki M,Kchno I.A study on stability a-nalysis of shallow layer slope due to raining perme-ation[J].Unsaturated Soils,1995(1):315-320.
[10]Ng C W W,Shi Q.A numerical investigation of thestability of unsaturated soil slopes subjected to transi-ent seepage[J].Computers and Geotechnics,1998,22(1):1-28.
[11]谭桔红,晏鄂川.水与裂隙对边坡稳定性的影响分析及工程应用[J].山地学报,2004,22(3):373-377.TAN Ju-hong,YAN E-chuan.Influence and implica-tion of water and fissure on slope stability[J].Journalof Mountain Science,2004,22(3):373-377.
[12]李亮.地裂缝带黄土的渗透变形试验研究[D].西安:长安大学,2007.
[13]JTJ 034—2000,公路路面基层施工技术规范[S].
[14]王福恒,李家春,田伟平.黄土边坡降雨入渗规律试验[J].长安大学学报:自然科学版,2009,29(4):20-24.WANG Fu-heng,LI Jia-chun,TIAN Wei-ping.Teston rainfall filtration in loess slope[J].Journal ofChang an University:Natural Science Edition,2009,29(4):20-24.
[15]彭小云,叶万军,折学森,等.黄土沟壑区湿软路基沉降预测模型[J].交通运输工程学报,2007,7(2):70-75.PENG Xiao-yun,YE Wan-jun,SHE Xue-sen,et al.Settlement prediction model of wettest-soft loess sub-grade in ravine regions[J].Journal of Traffic andTransportation Engineering,2007,7(2):70-75.
[16]王伟,孙斌祥,卢廷浩.公路路堤软土地基工后沉降的三参数预估模型[J].中国公路学报,2008,21(2):12-17.WANG Wei,SUN Bing-xiang,LU Ting-hao.3 param-eter prediction model of post-construction settlementfor soft soil foundation under highway embankment[J].China Journal of Highway and Transport,2008,21(2):12-17.
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