降雨入渗对非饱和膨胀土边坡稳定性影响的参数研究

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Abstract The parametric study on the effect of rain infiltration on unsaturated expansive soil slope is made. Transient seepage due to rain infiltration is computed using the finite element method. The results of numerical simulation show that crack is of a great influence on the distributions of both pore pressure and volumetric water content. The safety factors of slopes of expansive soils will decrease with increment of permeability coefficient，which is different from that of other clay slope. The deeper the crack，the smaller the safety factor of slope of expansive soil is. Moreover, rain duration can also strongly affect the transient flows and henee the stability of slope.

Key words： unsaturated expansive soil rain infiltration slope stability analysis parametric study

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https://rockmech.whrsm.ac.cn/EN/Y2002/V21/I07/1034

1周	萃英. 滑坡岩体复杂特征及其预测新认识[J]. 岩石力学与工程学报，2000，19(1)：34～38
2贺	跃光，颜英贵. 软岩水膜型泥化夹层滑坡机理及对策[J]. 岩石力学与工程学报，2000，19(1)：34～42
3金	晓媚，刘金韬. 滑坡岩体复杂特征及其预测新认识[J]. 岩石力学与工程学报，2000，19(1)：47～49
4张	晓晖，王辉，戴福初等. 基于关系矩阵和模糊集合的斜坡稳定性综合评价[J]. 岩石力学与工程学报，2000，19(3)：346～351
5秦	四清. 斜坡失稳的突变模型与混沌机制[J]. 岩石力学与工程学报，2000，19(4)：486～492
6李	焯芬，汪敏. 港渝两地滑坡灾害的对比研究[J]. 岩石力学与工程学报，2000，19(4)：493～497
7梅	其岳. 天荒坪开关站滑坡的形成条件和滑坡机理[J]. 岩石力学与工程学报，2001，20(1)：25～28
8罗	先启，姜清辉，葛修润等. 黄腊石滑坡群石榴树包滑坡稳定性的研究[J]. 岩石力学与工程学报，2001，20(1)：29～33
9L	umb P B. Effects of rain storms on slope stability[A]. In：Proc. of Sym. on Hong Kong Soils[C]. Hong Kong：[s. n.]，1962，73～87
10	Fredlund D G，Rahardjo H. An overview of unsaturated soil behavior[A]. In：Proceedings of SessionsofDallas[C]. Texas：[s. n.]，1993，24～28
11	Fredlund D G，Rahardjo H. Hillside slope stability assessment in unsaturated residual soils[A]. In：IKRAM Seminar on the Geotechnical Aspects of Hillside Development[C]. Malasia：[s. n.]，1994
12	Sammori T，Tsuboyama Y. Paramtric study on slope stability with numerical simulation in consideration of seepage process[A]. In：Beled.Proc. 6thSymp. on Landslides[C].Rotterdam：A. A. Balkema，1991，539～544
13	Alonso E，Gen S，Lioret A，et al. Effect of rain infiltration on the stability of slopes[A]. In：Proc. 1stICUS[C].Paris：International Academic Publishers，1995，I：241～249
14	雷志栋，杨诗秀，谢森传. 土壤水动力学[M]. 北京：清华大学出版社，1988
15	Fredlund D G，Morgenstern N R，Widger R A. The shear strength of unsaturated soils[J]. Conadian Geot. J.，1978，15(3)：313～321
16	Yao Sun，Nishigaki M，Kchno I. A study on stability analysis of shallow lager slope due to raining permeation[A]. In：Proc. 1stICUS[C]. Paris：International Academic Publishers，1995，I：315～320
17	Shimadak，K Fujii H，Nishimura S，et al. Stability of unsaturated slopes considering changes of matric suction[A]. In：Proc. ISTICUS[C]. Paris：International Academic Publishers，1995，I：293～299
18	Ng C W W，Shi Q. A numerical investigation of the stability of unsaturated soil slope subjected to transient seepage[J]. Computers and Geotechnics. 1978，22(1)：1～28
19	吴宏伟，陈守义，庞宇威. 雨水入渗对非饱和土坡稳定性影响的参数研究[J]. 岩土力学，1999，20(1)：1～14
20	姚海林 .考虑雨水入渗影响的膨胀土边坡稳定性分析[博士学位论文][D]. 武汉：中国科学院武汉岩土力学研究所，2000
21	Geo-Slope International Ltd.SEEP/W and. SLOPE/W Version
4.	21[CP/DK][R]. New York：Geo-Slope International Ltd.，1998