On the role of topographic amplification in seismic slope instabilities

Fardin Jafarzadeh 已出版文章查询
Fardin Jafarzadeh
本平台内已出版文章查询
1 Mohammad Mahdi Shahrabi 已出版文章查询
Mohammad Mahdi Shahrabi
本平台内已出版文章查询
1 Hadi Farahi Jahromi 已出版文章查询
Hadi Farahi Jahromi
本平台内已出版文章查询
1

+ 作者地址

1Civil Engineering Department, Sharif University of Technology, Azadi Avenue, Tehran, Iran


0
  • 摘要
  • 参考文献
  • 相关文章
  • 统计
Surface wave generation due to body wave propagation near ground surface has been discussed in the literature. This phenomenon, typically occurring in topographic changing areas, along with its interaction with body waves (SV), decreases precision of formulas for evaluation of slope displacement. This sig-nificant fact caused the researchers not only to investigate the combined surface and SV waves motion pattern, but also to consider its effect on structures built on the slopes. In order to reveal the phe-nomenon, several finite element numerical studies have been performed by ABAQUS programme. Be-sides, two physical model slopes simulating the landslide occurrence have been constructed and tested by shaking table device. The results of induced and calculated accelerations obtained by two approaches have been compared and Rayleigh wave generation has been proved. Furthermore, the slope displace-ments have been calculated by various empirical methods and the results were compared with nu-merical ones. The results proved that in order to increase the precision of empirical formulas for displacement prediction, surface wave effect should be taken into account. Finally, a concept ofeffective depth of surficial amplificationis introduced and its effect on dynamic slope stability is analysed.

[1] Ambraseys NN;Menu JM .Earthquake-induced ground displacements[J].Earthquake Engineering & Structural Dynamics,1988,16(07):985e1006.

[2] D. ASSIMAKI;G. GAZETAS .SOIL AND TOPOGRAPHIC AMPLIFICATION ON CANYON BANKS AND THE 1999 ATHENS EARTHQUAKE[J].Journal of earthquake engineering,2004(1):1-43.

[3] Boore DM .A note on the effect of simple topography on seismic SH waves[J].Bul etin of the Seismological Society of America,1972,62(01):275e84.

[4] Bouckovalas GD;Papadimitriou AG .Numerical evaluation of slope topography ef-fects on seismic ground motion[J].Soil Dynamics and Earthquake Engineering,2005,25(7e10):547e58.

[5] Celebi M .Topographic and geological amplifications determined from strong-motion and aftershock records of the 3 March,1985 Chile earthquake[J].Bul etin of the Seismological Society of America,1987,77(04):1147e67.

[6] Clough RW.The finite element method in plane stress analysis[A].Pittsburgh,USA:ASCE Struc-tural Division,1960

[7] Das BM.Advanced soil mechanics[M].McGraw-Hil,1985

[8] Electric Power Research Institute(EPRI) .Guidelines for determining design basis ground motions.Final Rep.No.TR-102293[R].Palo Alto:California,1996.

[9] Farahi Jahromi H;Joshaghani M;Sehi-Zadeh M;Yousefi S.Comparison of dynamical y-induced experimental slope deformations with numerical sliding block theory[A].Paris,France,2013

[10] Gazetas G;Kal ou PV;Psarropoulos PN .Topography and soil effects in the Ms 5.9 Parnitha(Athens)earthquake:the case of Adames[J].NATURAL HAZARDS,2002,27(1e 2):133e69.

[11] Iai S .Similitude for shaking table tests on soil-structure-field model in 1 g gravi-tational field[J].SOILS AND FOUNDATIONS,1989,29(01):105e18.

[12] S. IAI;T. TOBITA;T. NAKAHARA .Generalised scaling relations for dynamic centrifuge tests[J].Geotechnique,2005(5):355-362.

[13] Ishibashi I;Zhang X .Unified dynamic shear moduli and damping ratios of sand and clay[J].SOILS AND FOUNDATIONS,1993,33(01):182e91.

[14] Jibson RW .Summary of research on the effects of topographic amplification of earthquake shaking on slope stability[R].Menlo Park,CA:US Geological Survey,1987.

[15] Jibson RW .Predicting earthquake-induced landslide displacements using New-mark's sliding block analysis[J].TRANSPORTATION RESEARCH RECORD,1993,1411:9e17.

[16] Jibson RW .Methods for assessing the stability of slopes during earthquakesdA retrospective[J].Engineering Geology,2011,122(1e2):43e50.

[17] Kramer SL.Geotechnical earthquake engineering[M].Prentice-Hal,1996

[18] Kramer SL;Smith MW .Modified Newmark model for seismic displacements of compliant slopes[J].JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING,1997,123(07):635e44.

[19] Lin JS;Whiteman RV .Earthquake induced displacements of sliding blocks[J].Journal of Geotechnical Engineering,1986,112(01):44e59.

[20] Makdisi FI;Seed HB .Simplified procedure for estimating dam and embankment earthquake-induced deformations[J].Journal of Geotechnical Engineering,1978,104(07):849e67.

[21] Meek JW;Wolf JP .Cone models for homogeneous soil,I[J].Journal of Geotechnical Engineering,1992,118(05):667e85.

[22] Newmark NM .Effects of earthquakes on dams and embankments[J].GEOTECHNIQUE,1965,15(02):139e60.

[23] Ohtsuki A;Harumi K .Effect of topography and subsurface inhomogeneities on seismic SV waves[J].Earthquake Engineering & Structural Dynamics,1983,11(04):441e62.

[24] Rathje EM;Antonakos G .A unified model for predicting earthquake-induced sliding displacements of rigid and flexible slopes[J].Engineering Geology,2011,122(1e2):51e60.

[25] Sanchez-Sesma M;Campil o M .Topographic effects for incident P,SV,and Rayleigh waves[J].TECTONOPHYSICS,1993,218(1e3):113e25.

[26] Stewart JP;Sholtis SE .Case study of strong ground motion variations across cut slope[J].Soil Dynamics and Earthquake Engineering,2005,25(7e10):539e45.

[27] Tehran Gas Company(TGC).Geological and seismological reports of Tehran[M].Tehran,Iran,2012

[28] On a Possible Role of Rayleigh Surface Waves in Dynamic Slope Failures[J].International journal of geomechanics,2010(4):153-160.

[29] Yegian MK;Marciano E;Ghahraman VG .Earthquake-induced permanent de-formations:probabilistic Approach[J].Journal of Geotechnical Engineering,1991,117(01):35e50.


语种: 英文   

基金The authors deeply appreciate Tehran Gas Company (TGS)s au...


期刊热词
  • + 更多
  • 字体大小