By Guowei MA, Yingxin ZHOU
This publication includes the 7 keynote papers written via the specialists, foreign popular researchers and experts and seventy three technical papers which mirror the state-of-the-practice at the research of Discontinuous Deformation: New improvement and functions. those papers have been chosen after a rigorous evaluate approach. It represents the most recent advances in numerical and analytical tools relating to rock mechanics and engineering. Following the culture of the sequence, the most schemes of the papers are at the key block conception and its engineering purposes, the discontinuous deformation research (DDA) technique and the numerical manifold technique (NMM). even though, different appropriate issues, for instance, the distinct/discrete aspect approach, the meshless strategy, the finite point procedure in rock mechanics and engineering functions also are integrated. For rock lots the place the discontinuities dominate their behaviour in a rock engineering procedure reminiscent of rock slopes and underground rock caverns, the research of discontinuous deformation is of serious significance within the balance research and engineering layout. it truly is was hoping that this e-book serves as an invaluable reference for either researchers and engineers at the new advancements and functions of many of the to be had modeling options and instruments during this more and more vital box of rock mechanics and engineering. subject matters lined: * Key Block conception and Engineering functions * Discontinuous Deformation research (DDA) approach * Numerical Manifold approach (NMM) * Distinct/Discrete point procedure (DEM) * software of UDEC, 3DEC and PFC codes * Meshless technique and Rock Engineering purposes * touch Algorithms * Wave Propagation via Rock Joint and Jointed Rock Mass * Deformation research of Heterogeneous fabrics * different complex Analytical and Numerical equipment in Rock Engineering * Experimental thoughts and dimension of Discontinuous Deformation * Case stories and different proper issues
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Additional resources for Analysis of Discontinuous Deformation New Developments and Applications
Researches on the geo-hazards triggered by Wenchuan earthquake, Sichuan [J]. Journal of Engineering Geology, 2008, 16(4): 433–444 (in Chinese). 2. Yang Qigui, Li Qijun. Yangtze River, 2008, 39(22): 1–3 (in Chinese). 3. Ma Guisheng, Luo Xiaojie. The formation mechanism forTangjiashan landslide and the geological characteristics of the landslide dam [J]. Yangtze River, 2008, 39(22): 46–47, 85 (in Chinese). 4. H. D. Dissertation, Department of Civil Engineering, University of California, Berkeley, 1988.
2. 1. Location and morphology of the landslide Tanjiashan landslide was triggered by the earthquake on the right bank of Tongkou river, a branch of the Fujiang River. 2 km north of Beichuan county where Analysis of Discontinuous Deformation: New Developments and Applications. Edited by Guowei MA and Yingxin ZHOU. Published by Research Publishing Services. Copyright c 2009 by Society for Rock Mechanics & Engineering Geology (Singapore). 3850/9789810844554-keynote-Wu-AiQing 27 Analysis of Discontinuous Deformation: New Developments and Applications LangZhou N Xian QingChuan IX Tangjiashan Bei Chuan XI VIII X MianZhu WenChuan XI VII VI Legend ChengDu Chong Qing XI X IX VIII VI VI Figure 1.
In general, the BEM is not efficient as the FEM in dealing with material heterogeneity and non-linearity. Meshless methods look promising, but are not sufficient to replace the FEM because of their difficulties in numerical integration of weak forms and imposition of essential boundary conditions. The continuum-based numerical methods can deal with the fractures to some extent. Block rotations, complete detachment and large-scale opening can not be treated. Discontinuum-based numerical methods including the distinct element method (DEM) originated by Cundall9 and the discontinuous deformation analysis (DDA) method pioneered by Shi10 are also used in modeling the rock mass behaviors.
Analysis of Discontinuous Deformation New Developments and Applications by Guowei MA, Yingxin ZHOU