Study of calculation method for discontinuous surface deformation induced by steeply - inclined seam mining 急倾斜煤层开采地表非连续变形计算方法研究
Discontinuous deformation analysis and its application to the deformation forecast of dangerous lianziya cliff 非连续变形分析方法在链子崖危岩体变形预测中的应用
Discontinuous deformation computational mechanics model and its application in stability analysis of rock slope 非连续变形计算力学模型在岩体边坡稳定性分析中的应用
In this paper , on the basis of several discontinuous deformation analysis methods , dda ( discontinuous deformation analysis ) method was researched mainly 本文在对各种非连续变形分析方法进行比较性介绍的基础上,选择其中的dda方法进行了着重研究。
In this paper , the application of discontinuous deformation analysis ( dda ) method to the dynamic stability of a rock slope is discussed with a practical engineering example 摘要基于块体系统非连续变形分析计算模型,结合工程实例分析岩质边坡块体的动态稳定性。
This paper , for the first time , adopts the discontinuous deformation analysis ( dda ) to model respectively the structural patterns , forms , displacement and key stratum ( dynamic modeling ) for arches with three - grips and grip beams in excavated rockmass , and some significant conclusions are drawn out 首次采用非连续变形分析( dda )法,对采动岩体结构中的“三咬拱”结构模式、形态、位移与关键层等进行动态模拟,得出一些有意义的结论。
Traditional finite element method ' s mesh can be used as the mathematic mesh for the nmm . and nmm is a promising numerical method to solve both the continuous and discontinuous deformation problem of rock mass and to unify the finite element method ( fem ) , discontinuous deformation analysis ( dda ) and analytic method 流形元法的最大优点可以统一处理连续变形与非连续变形问题,同时可以统一解决有限元法、非连续变形分析及解析法的计算问题,具有广泛的应用前景。
Firstly , from the early joint element method , discrete element method , fast lagrangian analysis of continua and block element method to recent numerical manifold method , all these numerical analysis methods were instructed , and their advantages and disadvantage were pointed out . then the theoretical origin of the dda method was discussed from the aspects of mechanic theory and energy theory 本文首先就处理非连续变形问题的各种数值分析方法进行了较全面的描述,从早期的节理单元法、离散单元法、快速拉格朗日法、块体单元法到近期的流形单元法,并分别指出这些数值模拟方法在处理岩体工程实际问题方面各自的优缺点。
Based on the anti - seismic standards and stability evaluation criteria of high arch dams , the current calculation methods for high arch dams are systematically summarized , which include the rigid body limit equilibrium method , method combing rigid body limit equilibrium and finite element , discontinuous deformation analysis method ( dda ) , numerical manifold method , interface element method , fe - be - ibe coupled method , stochastic finite element method , artificial transmitting boundary and explicit fem , parallel computation and modeling test 摘要从高拱坝的抗震设防标准及动力稳定安全判定准则出发,对现有的高拱坝计算方法,如刚体极限平衡方法、刚体极限平衡与有限元结合方法、非连续变形分析( dda )法、数值流形方法、界面元法、有限元边界元无限边界元耦合方法、随机有限元、人工透射边界和显式有限元法、并行算法,以及模型试验等进行了归纳。