By Guowei MA, Yingxin ZHOU
This ebook comprises the 7 keynote papers written by way of 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 purposes. those papers have been chosen after a rigorous overview strategy. It represents the most recent advances in numerical and analytical equipment relating to rock mechanics and engineering. Following the culture of the sequence, the most schemes of the papers are at the key block thought and its engineering functions, the discontinuous deformation research (DDA) process and the numerical manifold approach (NMM). even though, different correct issues, for instance, the distinct/discrete point strategy, the meshless technique, the finite aspect procedure in rock mechanics and engineering functions also are integrated. For rock lots the place the discontinuities dominate their behaviour in a rock engineering approach akin to rock slopes and underground rock caverns, the research of discontinuous deformation is of severe value within the balance research and engineering layout. it's was hoping that this ebook serves as an invaluable reference for either researchers and engineers at the new advancements and functions of some of the to be had modeling options and instruments during this more and more very important box of rock mechanics and engineering. subject matters lined: * Key Block thought and Engineering purposes * Discontinuous Deformation research (DDA) strategy * Numerical Manifold technique (NMM) * Distinct/Discrete point approach (DEM) * program of UDEC, 3DEC and PFC codes * Meshless procedure 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 suggestions and size of Discontinuous Deformation * Case stories and different correct issues
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Additional info for Analysis of Discontinuous Deformation New Developments and Applications
8. Aiqing Wu, Xiuli Ding, Huizhong Li, Gen-hua Shi. Numerical simulation of startup and the whole process characteristics of Qianjiangping Landslied with DDA method [C]. Proce. of Seventh International Conference on the Analysis of Discontinuous Deformation(ICADD-7). December 10–12, 2005, Honolulu, Hawaii, 167–174. 9. Li Xiaojun, Zhou Zhenghua, Yu Haiyin, et al. Strong motion observations and recordings from the great Wenchuan Eearthquake [J]. Earthquake Engineering and Engineering Vibration, 2008, 7(3):235–246.
Development and application of discontinuous modelling for rock engineering, Proceedings of the 6th International Conference on Analysis of Discontinuous Deformation, Balkema, 2003, 13– 3117. 7. H. The validity of dynamic block displacement prediction using DDA. J. Rock Mech. Min. Sci. & Geomech. Abstr. 2001, 38: 599–606. 8. Aiqing Wu, Xiuli Ding, Huizhong Li, Gen-hua Shi. Numerical simulation of startup and the whole process characteristics of Qianjiangping Landslied with DDA method [C]. Proce.
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