郑西客运专线黄土路基边坡防护形式研究
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摘要
路基边坡防护是防止路基病害、保证路基稳定、改善道路环境景观、保护生态平衡的重要措施。目前基于生态防护的黄土路基边坡防护形式研究还较少。因此合理设计边坡的坡型,根据边坡的水文地质条件和坡型正确的选择植被类型对于边坡的稳定性和生态系统的恢复至关重要。
本论文首先详细调查了河南、陕西及山西等黄土地区高速公路路基边坡防护设计方法、施工工艺、应用效果等技术资料。根据资料发现,黄土路基边坡病害可划分为以下三种类型：坡面雨水冲刷侵蚀破坏、坡体失稳滑坡、侵蚀—失稳破坏；总结出了黄土路基边坡防护现状和难点。
本论文在郑西客运专线详细地质勘察资料的基础上,选取两段代表性的黄土路段进行详细的边坡稳定性分析及坡型与支护设计；然后考虑植物防护,研究黄土边坡的浅层稳定性。最后根据对黄土边坡植物生长状况的现场调研,从利于坡面植物生长、快速起到防护作用的角度考虑,建议黄土边坡的坡比不宜陡于1：1；再结合对比各种坡型边坡稳定性分析结果,最终得出黄土路基边坡在该段坡型的最优方案。
根据对黄土边坡破坏模式、防护现状的调研,黄土边坡稳定性的分析研究成果,归纳郑西客运专线郑西客运专线渑灵段黄土边坡防护方法的选择,并通过现场试验总结出了郑西客运专线渑灵段黄土边坡植物配置的适宜模式。
The protection of the slope is an important measure to prevent diseases of the slop, guarantee the stability of slop, improve the environment landscape, and protect the ecological balance. At the present, in the form of loess subgrade slope protection has not too many studys based on the ecological protection. So the reasonable to design slope type, according to the hydrogeology conditions and slope type to select the right type of vegetation for the stability of the slope and ecosystem restoration is very important.
At first, this thesis detailed investigations He Nan, Shan Xi and Shan Xi province as well as other loess highway areas, covering the protection of the slope design methods, Construction technology, applying effects and other technical data. According to the information, the loess slope disease can be divided into three types: Erosion damage at the face of the slop by rain, landslides of slop instability, the damage of erosion-losing stability.Summary the cosplay and difficulty of the protective of the loess slop.
This thesis in ZhengZhou to Xi'An passenger line detailed on the basis of geological exploration, Select two representative types of the slope to stability analysis, subgrade and protection type design. According to the research of loess slope plant grow, from beneficial for plant growth and quickly to provide protection, suggest the slope ratio of the loess slopes not steeplier than 1:1; Then contrast the results of the numerical analysis software, finally get the optimal subgrade of loess slope section.
According to the destruction mode research, cosplay protection, and stability analysis of the loess slope, sum up the choose of the protection of the Mian Ling of Zhen Zhou to Xi'An passenger line, and according to field trial, sum up the plant proportion of loess slop of the Mian Ling of Zhen Zhou to Xi'An passenger line.
本论文首先详细调查了河南、陕西及山西等黄土地区高速公路路基边坡防护设计方法、施工工艺、应用效果等技术资料。根据资料发现,黄土路基边坡病害可划分为以下三种类型：坡面雨水冲刷侵蚀破坏、坡体失稳滑坡、侵蚀—失稳破坏；总结出了黄土路基边坡防护现状和难点。
本论文在郑西客运专线详细地质勘察资料的基础上,选取两段代表性的黄土路段进行详细的边坡稳定性分析及坡型与支护设计；然后考虑植物防护,研究黄土边坡的浅层稳定性。最后根据对黄土边坡植物生长状况的现场调研,从利于坡面植物生长、快速起到防护作用的角度考虑,建议黄土边坡的坡比不宜陡于1：1；再结合对比各种坡型边坡稳定性分析结果,最终得出黄土路基边坡在该段坡型的最优方案。
根据对黄土边坡破坏模式、防护现状的调研,黄土边坡稳定性的分析研究成果,归纳郑西客运专线郑西客运专线渑灵段黄土边坡防护方法的选择,并通过现场试验总结出了郑西客运专线渑灵段黄土边坡植物配置的适宜模式。
The protection of the slope is an important measure to prevent diseases of the slop, guarantee the stability of slop, improve the environment landscape, and protect the ecological balance. At the present, in the form of loess subgrade slope protection has not too many studys based on the ecological protection. So the reasonable to design slope type, according to the hydrogeology conditions and slope type to select the right type of vegetation for the stability of the slope and ecosystem restoration is very important.
At first, this thesis detailed investigations He Nan, Shan Xi and Shan Xi province as well as other loess highway areas, covering the protection of the slope design methods, Construction technology, applying effects and other technical data. According to the information, the loess slope disease can be divided into three types: Erosion damage at the face of the slop by rain, landslides of slop instability, the damage of erosion-losing stability.Summary the cosplay and difficulty of the protective of the loess slop.
This thesis in ZhengZhou to Xi'An passenger line detailed on the basis of geological exploration, Select two representative types of the slope to stability analysis, subgrade and protection type design. According to the research of loess slope plant grow, from beneficial for plant growth and quickly to provide protection, suggest the slope ratio of the loess slopes not steeplier than 1:1; Then contrast the results of the numerical analysis software, finally get the optimal subgrade of loess slope section.
According to the destruction mode research, cosplay protection, and stability analysis of the loess slope, sum up the choose of the protection of the Mian Ling of Zhen Zhou to Xi'An passenger line, and according to field trial, sum up the plant proportion of loess slop of the Mian Ling of Zhen Zhou to Xi'An passenger line.
引文
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[2]何红前.层状黄土高边坡稳定性分析及防护优选决策研究,长安大学硕士论文,2006
[3]任伟新.三门峡地区深路堑黄土边坡稳定性研究,长安大学硕士论文,2003
[4]高德彬,王艳霞等.边坡稳定性分析方法综述,地球探索科学与技术新发展,北京：中国科学技术出版社,2002,10
[5]赵明阶,等.边坡工程处治技术,人民交通出版社,2003.
[6]H. Nouri, A. Fakher, C.J.F.P. Jones, Development of horizontal slice method for seismic stability analysis [J]. Geotextiles and Geomembranes,2006,24:175-187.
[7]S. Shekarian, A. Ghanbari, A. Farhadi, New seismic parameters in the analysis of retaining walls with reinforced backfill [J]. Geotextiles and Geomembranes,2008,26:350-356.
[8]G.V. Narasimha Reddy, M.R. Madhav, E. Saibaba Reddy, Pseudo-static seismic analysis of reinforced soil wall-Effect of oblique displacement [J]. Geotextiles and Geomembranes,2008, 26:393-403.
[9]Ali Azad, S. Shahab Yasrobia, Ali Pak, Seismic active pressure distribution history behind rigid retaining walls [J]. Soil Dynamics and Earthquake Engineering,2008,28:365-375.
[10]李同录,邓宏科,李萍,等.搜索简单土坡潜在滑动面的一种新方法[J].长安大学学报(地球科学版),2003,25(3)：56-59.
[11]朱以文,吴春秋,蔡元奇.基于滑移线场理论的边坡滑裂面确定方法[J].岩石力学与工程学报,2005,24(15)：2609-2616.
[12]李忠,朱颜鹏.多阶边坡滑移面搜索模型及稳定性分析[J].岩石力学与工程学报,2006,25(1)：2841-2847.
[13]郑颖人,叶林海,黄润秋.地震边坡破坏机制及其破裂面的分析探讨[J].岩石力学与工程学报,2009,28(8)：1714-1723.
[14]孙冠华,郑宏,李春光.基于等效塑性应变的三维边坡滑面搜索[J].岩土力学,2008,29(5)：1159-1163.
[15]孙冠华,郑宏,李春光.基于等效塑性应变的边坡滑面搜索[J].岩土力学,2010,31(2)：627--632.
[16]郭明伟,李春光,葛修润,等.基于矢量和分析方法的边坡滑面搜索[J].岩土力学,2009,30(6)：1175-1781.
[17]RADOSLAW L MICHALOWSKI. Limit Analysis and stability charts for 3D slope failures[J]. Journal of geotechnical and geoenvironmental engineering,2010,136(4):583-593.
[18]BAKER R. Determination of the critical slip surface in slope stability computations[J]. International Journal for Numerical and Analytical Methods in Geomechanics,1980,4: 333-359.
[19]ZHU D Y.A method for locating critical slip surfaces in slope stability analysis[J]. Canadian Geotechnical Journal,2001,38:328-337.
[20]CHENG Y M, LIU H T WEI W B. Location of critical three-dimension non-spherical failure surface by NURBS functions and ellipsoid with applications to highway slopes[J]. Computers and Geotechnics,2005,32:387-399.
[21]赵学勐,陈运理,等.考虑垂直裂隙影响的均质黄土挖方边坡稳定性分析,岩土工程学报,1981,第3期
[22]刘艳,牛思胜.黄土路基复合型边坡防护技术研究,技术论坛,2007,6：52-54
[23]阿布·里提甫.基于FLAC3D的黄土边坡稳定性分析,中国煤炭地质,2008,20：32-35
[24]晏长根,等.土工格室在黄土边坡公路中的试验研究及应用,岩石力学与工程学报,2006,25：3235-3238
[25]周德培,张俊云.植被护坡工程技术.北京.人民交通出版社.2003
[26]Waldron, L. J., Dakessian, S. Soil reinforcement by roots, calculation of increased soil shear resistance from rooot properties. Soil Science.1981:132,427-435
[27]Waldron, L. J. The shear resistance of root-permeated homogeneous and stratified soil. J. Soil Science Soc. Amer.,1977:41,843-849
[28]Wu, T. H., Mcomber, R. T., Erb, R. T., etc. Study of soil—root interaction. J. of Geotech 1988,114(12):1351-1375
[29]周跃,徐强,络华松,等.乔木侧根对土体的斜向牵引效应—原理和数学模型.山地学报.1999,17(])：4-9
[30]周跃,络华松,徐强,等.乔木的斜向支撑效能及其坡面稳定意义.山地学报.2000,18(4)：306-312
[31]Gary, D. H., Sotir, R. B. Biotechnical stabilization of highway cut slope. J. of Geotech. Engrg.,ASCE,1992,118(9):1395-1409
[32]Gary, D. H. Biotechnical stabilization of steepened slope. Transp. Res.Rec.,1995, (1474):23-29
[33]Sotir, R.B., Difini, J.T., Mckown, A.F.Soil bioengineering/biotechnical stabilization of a slope failure[A].Sixth international Geosynthetics Conference Proceedings Atlanta, GA,1998
[34]杨维西,罗晶,魏天兴,等.黄土高原坡面喷涂绿化技术试验研究.水土保持科学研究与发展.北京.中国林业出版社.1993：231-236
[35]刘海松.黄土地区公路高边坡防护方案优化选择研究,长安大学硕士论文,2005
[36]刘祖典.黄土力学与工程,陕西科学技术出版社,1997
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