Elastic Damage Model for Modeling Brittle Failure of Heterogeneous Materials,from Continuous to Discontinuous
Mining is a progressive unloading activity in which the openings increase incrementally in size. This process of forming new space and loading of remnant rock frequently results in sudden local loss of stability and the subsequent release of energy into the surrounding rocks. Such events are a subset of the broader phenomenon of rock behaviour, from continuous to discontinuous. In the first part of the paper, I will introduce a RFPA code through some examples to illustrate how the heterogeneity of rock will influence the failure behavior of rock and how the microfractures and stress evolution of a rock or rock structure can be simulated through meso scale mechanical model. In the second part, rock failure under laboratory conditions is numerically modeled. In the third part, slope stability analysis is presented to show how RFPA can be used to model rock failure considering rock reality and model rock failure under engineering circumstances.
C.A.Tang
Center for Rock Instability and Seismicity Research,Dalian University of Technology,Dalian,P.R.China
国际会议
北京
英文
214-222
2008-09-24（万方平台首次上网日期，不代表论文的发表时间）