全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

考虑降雨入渗影响的边坡稳定性数值分析

, PP. 27-32

Keywords: 道路工程,边坡稳定性,数值试验,非饱和土,降雨入渗

Full-Text   Cite this paper   Add to My Lib

Abstract:

根据云南祥临公路地质特点、气象条件与工程设计,用有限差分法软件建立了二维边坡非饱和渗流稳定性分析模型,运用水气两相流-应力耦合计算方法进行了考虑降雨入渗影响的边坡稳定性计算。并用强度折减法确定了边坡滑移面以及安全系数。结果表明边坡土体内孔隙水影响区域随着降雨强度和持时的增加而逐渐增大;降雨入渗浸润过程中气相向边坡内非饱和区域流动;随着降雨入渗持时和强度的增加,边坡滑动破坏面有向浅层移动的趋势,且安全系数逐渐减小。

References

[1]  AL -HOMOUD A S, PRIOR G, AWAD A. Modelling the Ef-fect of Rainfall on Instabilities of Slopes along Highways
[2]  [J].Environmental Geology , 1999, 37 (4) :317-325.
[3]  张擎, 沈波, 艾翠玲.黄土路基坡面侵蚀影响因素试验研究
[4]  [J].公路交通科技, 2005, 22 (9):20-22. ZHANG Qing, SHEN Bo, AI Cuiling. Research on Road BedSlope Erosion Impact Factors
[5]  [J]. Journal of Highway andTransportation Research and Development, 2005, 22 (9):20-22.
[6]  [J]. Canadian Geotechnical Journal, 1994(31):521-532.
[7]  张华.非饱和渗流研究及其在工程中的应用
[8]  [D].武汉:中科院岩土力学研究所, 2002. ZHANG Hua. Study and Engineering Applicationof UnsaturatedSeepage
[9]  [D]. Wuhan:Institute of Rock-Soil Mechanics ofChinese Academy of Sciences, 2002.
[10]  SUN Y, SAKAJO S, NISHIMURA M. Application Research on aNumericalModel of T wo-Phase Flow in Deformation Porous Medi-um
[11]  [C] //9th Int.Conf.on Computer Methods and Advances inGeomechanics. Botterrlam:Balkema A A, 1997:1171-1176.
[12]  FREDLUND D G. Unsaturated Soil Mechanics in EngineeringPractice
[13]  [J]. Journal of Geotechnical and GeoenvironmentalEngineering, 2006, 132 (3):286-321.
[14]  唐晓松, 赵尚毅, 郑颖人 , 等.渗流作用下利用有限元强度折减法的边坡稳定性分析
[15]  [J].公路交通科技,2007, 24 (9):6-10. TANG Xiaosong, ZHAO Shangyi, ZHENG Yingren, et al. Anal-ysisof Soil Slope Stability by Strength Reduction Element Methodunder Seepage
[16]  [J]. Journal of Highway and Transportation Re-search and Developmen, 2007, 24 (9):6-10.
[17]  Itasca Consulting Group Inc. FLAC3D Users Manual:Version2. 0
[18]  [R]. USA :Itasca Consulting Group Inc. , 1997.
[19]  夏元友, 孙锡民, 蒋超, 等.含弱面岩质路堑边坡开挖坡角优化 设计方 法及应用
[20]  [J].公路交 通科技,2006, 23 (10):25-28. XIA Yuanyou, SUN Ximin, JIANG Chao, et al. Design Methodof Optimum Stable Excavating Angle of Rock Slopes ContainingWeak Surfaces and Its Application
[21]  [J]. Journal of Highway andTransportation Research and Development, 2006, 23 (10):25-28.
[22]  李永政, 宋福玉.云南省祥临公路滑坡工程地质勘查报告
[23]  [R].云南:云南地质工程第二勘查院, 2002. LI Yongzheng, SONG Fuyu. Report on Geological Survey of Xi-angyun-Lincang Highway Landslide in Yunnan Province
[24]  [R].Yunnan:The Second Survey Institute of YunnanGeological Engi-neering, 2002.
[25]  GENUCHTEN M T V. A Closed Form Equation for Predictionthe Hydraulic Conductivity of Unsaturated Soils
[26]  [J]. Soil Sci-ence Society of America Journal, 1980 (44) :892-898.
[27]  NG C W W, ZHAN L T, BAO C, G, et al. Performance ofan Unsaturated Expansive Soil Slope Subjected to ArtificialRainfall Infiltration
[28]  [J]. Geotechnique, 2003, 53 (2):43-157.
[29]  汪益敏, 王秉纲.公路土质路基边坡坡面冲刷稳定性的模糊综合评价
[30]  [J].中国公路学报, 2005, 18 (1):24-29. WANG Yimin, WANG Binggang. Fuzzy Evaluation Method ofScouring Stability on Soil Subgrade Slope
[31]  [J]. China Journal ofHighway and Transport, 2005, 18 (1):24-29.
[32]  刘建军, 裴杜红, 薛强.降雨条件下道路边坡地下水渗流分析
[33]  [J].公路交通科技, 2005, 22 (增刊 2):42-44. LIU Jianjun, PEI Duhong, XUE Qiang. Analysis of Ground-31第 10 期 夏元友, 等:考虑降雨入渗影响的边坡稳定性数值分析 water Row in Road Slope under Rainfall Condition
[34]  [J]. Journalof Highway and Transportation Research and Development,2005, 22 (sup2):42-44.
[35]  GOTT ARDI G, VENUTELLI M. Computer Program for the Nu-merical Simulation of One -Dimensional Infiltrationinto UnsaturatedSoil
[36]  [J]. Computers &Geosciences, 1993, 19 (9) :1239-1266.
[37]  FREDLUND D G , XING A. Equation for the Soil -Water Char-acteristic Curve

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133