An approach of continuous-discontinuous cellular automaton method for modeling rock failure process is developed, in which the level set method, discontinuous enriched shape functions, discontinuous c
The rock mass in nature forms a discontinuous body with special structure because of being cut by structural surfaces, which causes the anisotropic in its mechanics characteristics.Moreover, the bulk
(1) A large-scale (500mm×500mm×480mm) three-dimensional testing system was developed for the simulation of rock bolting.This system has functions of loading, confining and measurement, with which the
The transient release of in-situ stress on the excavation boundary can induce vibration of surrounding rock during the excavation of deep tunnel by blasting.For the case of circular tunnel, the balanc
A new non-Euclidean dynamic model is proposed to investigate the zonal disintegration mechanism of isotropic rock masses around a deep spherical tunnel subjected to dynamic unloading.The defect parame
Surface-parallel slabbing is a failure mode often observed in highly-stressed hard rocks in underground excavation.To understand the occurrence mechanism of slabbing failure, uniaxial compressive test
连续-非连续单元方法(Continuum-discontinuum element method,CDEM)是一种基于拉格朗日方程的显式数值求解方法.该方法将连续介质算法与非连续介质算法进行耦合,通过单元内部及单元边界的断裂,实现岩体渐进破坏过程的模拟.通过在CDEM中引入应变强度分布模型实现了岩体损伤破裂过程的模拟,通过引入破裂度统计指标实现了工程区域岩体质量的统一评价,通过引入中心型裂-孔隙渗
A structural model experiment was carried out on a buried reinforced concrete arch structure subjected to underground conventional explosions to provide believable results of dynamic responses of larg
With the increase of exploit depth, the geological condition of deep becomes more complicated comparison to the upper part and has the noticeable featuresof high geo-stress, high geo-thermal and high