Research the Excavation Angle Affect on Seismic Dynamic Response of Slope

Abstract:

Based on the concentrated deformation and destruction characteristics of excavation damage slopes in Wenchuan earthquake，as granite the media of excavation damage slope for the finite element model. In 45° slope as the natural slope，the excavation damage effect and seismic dynamic response of different excavation angle have been studied under the excavation high is certain condition, it’s include natural slopes, excavation angle 56°, 72° and 90°. Analysis shows that excavation damage not only themselves destroyed the stress balance of slopes, but also impact on the seismic dynamic response of slopes, and the seismic dynamic stress, displacement and acceleration increased with the increase of slope angle. It’s not conducive to the stability of slope and the results coincides with the investigation conclusion that Wenchuan earthquake mountain disaster outbreak in the terrain mutation site. And the analysis also shows that slow excavation angle is an important measure to improve the seismic performance of the slope.

• Periodical: Advanced Materials Research (Volumes 374-377)
• Pages: 2583-2587
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.374-377.2583
• Online since: October 2011
• Authors: Fa You A, Ji Ming Kong, Zhen Qiang Ni
• Keywords: Excavation Angle, Seismic Dynamic Response, Slope

References

[1] F.Y.A, J.M. Kong, S.J. Tian, Y.Cun, W.P.Wu: Geology and Exploration. Vol. 45(2009), pp.312-320（in Chinese）.

[2] F.Y.A,J.M. Kong Z.Q.NI,F.SUN:Journal of SiChuan University.Vol.42 (2010) ,p.56–62（in Chinese）.

[3] R.Q. Huang, W.L.Li: Chinese Journal of Rock Mechanics and Engineering. Vol.27(2008) ,pp.2585-2592（in Chinese）.

[4] M.Parise R.W. Jibson: Engineering Geology. Vol.58(2000) ,pp.251-270.

[5] Luzi L,Pergalani F: Soil Dynamics and Earthquake Engineering. Vol.20(2000) ,pp.301-313.

[6] S.D.LI, X.S.REN, S.Y.YUE, etal:Research of Soil and Water Conservation, Vol.8(2001) ,pp.24-25（in Chinese）.

[7] J.J. Bommer C.E.R.guez: Engineering Geology. Vol.63(2002), pp.189-220.

[8] Y.Q.WANG,H.B.XING, Y.P.GAO,et al:Chinese Journal of Geotechnical Engineering.Vol.23(2001),pp.311-314（in Chinese）.

[9] Y.L.HE, S.Y.LU, Ya.H.DUAN: Journal of Yangtze River Scientific Research Institute. Vol.15(1998), pp.35-38（in Chinese）.

[10] Y.L.HE, S.Y.LU:Chinese Journal of Geotechnical Engineering. Vol.20(1998), pp.66-68（in Chinese）.

[11] D.PENG, L.L.CHENG: Journal ofYangtze River Scientific Research Institute. Vol.18(2001), pp.47-49（in Chinese）.

[12] L.J.TAO, S.R.SU, Z.Y.ZHANG:Journal of Engineering Geology. Vol.9(2001), pp.32-38（in Chinese）.

[13] W.Y. XU, S.Y.XIE, Z.C.QI,et al: Journal of University of Hydraulic and Electric Engineering/Yichang. Vol.20(1998), pp.11-15（in Chinese）.

[14] K.Q.XIAO, H.B.LI,et al:Rock and Soil Mechanics. Vol.28(2007), pp.1557-1564（in Chinese）.

[15] D.MENG,X.C.MENG,Y.ZHAO:Coal Engineering. Vol.1(2009), pp.77-79（in Chinese）.

[16] H.P.XIE:ROCK and Concrete damage mechanics, edtied by China University of Mining and Technology,Xuzhou,NY(1990), in press（in Chinese）.