Preliminary Study on the Progressive Failure of a Layered Rock Slope under Explosions

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Abstract:

The progressive failure process of a layer rock slope under explosions is simulated using two-dimensional Universal Distinct Element Code (UDEC). It is shown that the failure process of the slope can be divided into three phases, the formation and growth of local failure area as well as coalescence of sliding plane. In addition, the displacement components of a critical point of the slope are also suggested to be a progressive process.

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Key Engineering Materials (Volumes 306-308)

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1461-1466

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March 2006

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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[1] Bai zhiyong, Huang Shuzhen & Lu Mian, Blasting Influence on stability of Rock Slopes, Foundation Engineering, 1995(3): 19-23 (in Chinese).

Google Scholar

[2] Wang Genshun, Study on Progressive failure and Stability of Slopes, Chinese Journal for Rock Mechanics and Engineering, 2000, 19(1): 29-33. (in Chinese).

Google Scholar

[3] E. Eberhardt, D. Stead and J. S. Coggan, Numerical analysis of initiation and progressive failure in natural rock slopes-the 1991 Randa rockslide. Int. J. Rock Mech. & Min. Sci., 2004, Vol. 41 (1): 69-87.

DOI: 10.1016/s1365-1609(03)00076-5

Google Scholar

[4] Bjerrum L. Progressive failure in slopes of overconsolidated plastic clay and clay shales. J. Soil Mech. Foundat Div ASCE 1967; 93(SM5): 1- 49.

DOI: 10.1061/jsfeaq.0001017

Google Scholar

[5] Tan Wenhui, Wang Jiachen & Zhou Rudi, Physical and Numerical Simulation on Progressive Failure of Rock Slopes, Chinese Mining, 2000, 9(5): 56-58. (in Chinese).

Google Scholar

[6] Mao Yanlong, Hu Guangtao & Mao Xinhu,Study on the Mechanism and DEM Simulation of Slopes under Seism, Journal of Engineering Geology, 2001, 9(1): 74-80. (in Chinese).

Google Scholar

[7] UDEC (Universal Distinct Element Code) user's manual, Version 3. 0, Itasca Consulting Group Inc., (1996).

Google Scholar

[8] Reconnoitre Results of Huangmailin Section of Xiaogan Phosphorite in Hubei Province, Edong Geological Survey Bureau of Hubei, 1986, (in Chinese).

Google Scholar

[9] Y.Q. Liu, H.B. Li, J. Zhao, J.R. Li & Q.C. Zhou, UDEC Simulation for the Dynamic Response of a Rock Slope subject to Explosions, Int. J. Rock Mech. & Min. Sci., 2004, Vol 41 (3): 474.

DOI: 10.1016/j.ijrmms.2003.12.145

Google Scholar

[10] Lysmer,J., and R. Kuhlemeyer, (1969) Finite Dynamics Model for Infinite Media, J. Eng. Mech., Div. ASCE, 95: 859-877.

DOI: 10.1061/jmcea3.0001144

Google Scholar

[11] Study on the Blasting Vibration Monitoring, Sonic Testing and Blasting Design of Huangmailin Phosphorite, Testing Center of Inst. of Rock & Soil Mech., Chinese Academy of Sciences, Wuhan, 2000, 9. (in Chinese).

Google Scholar

[12] S.G. Chen and J. Zhao. 1998. A Study of UDEC Modeling for Blast Wave Propagation in Jointed Rock Masses, Int. J. Rock Mech. Min. Sci. Vol. 35, No. 1, 93-99.

DOI: 10.1016/s0148-9062(97)00322-7

Google Scholar

[13] Senseny, P. E. and Simons, .A., Comparison of calculational approaches for structural deformation in jointed rock. Int. J. Num. Anal. Methods Geomech., 1994, 18, 327-344.

DOI: 10.1002/nag.1610180504

Google Scholar