Recently, The Disaster- Causing Mechanism and Analysis Method of Coal Mine Deep Tunnel High Stress Soft Surrounding Rock Bulking Dilatancy Deformation applied by researcher Liu Quansheng from IRSM(Wuhan), CAS get subsidized with 290,000 yuan by State Natural Science Foundation.

With the decrease of shallow coal resource and the increase of deep resource exploitation, the disaster control of coal mine deep tunnel surrounding rock deformation has already become the major subject of deep coal mine exploitation that demands urgent solving in our country. The key reason why coal mine deep tunnel high stress soft surrounding rock bulking dilatancy deformation is hard to restrain is that we lack further study on its inoculation and developing mechanism, mature analysis and prediction method are also needed. The program focus on two major science problems about the disaster- causing of coal mine deep tunnel high stress soft surrounding rock bulking dilatancy deformation, which are inoculation and evolution mechanism and analysis method. The research method combines test monitoring and simulation, it reveals the mechanical mechanism of disaster-causing process of deep tunnel surrounding rock expansion-damage and dilatancy deformation. With theoretical analysis, the program build up the constitutive model and critical condition rules for expansion-damage dilatancy process of deformation disaster-causing, setting a theory base for the analysis and prediction of deep tunnel high stress soft surrounding rock bulking dilatancy deformation instability disaster . Basing on this, we use the platform of numerical manifold method program; by studying and characterizing adhesion-repair algorithm and block cracking algorithm －about the repairing and strengthening effect of surrounding rock broken expansion and bolt grouting to surrounding rock crack; by compiling theory model calling program and developing relevant software, we build up the numerical simulation analysis method and calculation analysis software of deep roadway dilatancy bulking deformation instability disaster. The research achievement will supply a scientific theory support both for safe and efficient exploitation of deep coal resource in our country and sustainable development of the coal industry, it is also expected to promote the basic theory development of relevant discipline.