With the exploitation of coffers expanded to deep, the geological terrain which is “ three tenors one disturbance ” of gemstone mass in great Stress Rock depth has been more complex, Stress gemstone performing in some new engineering geological disasters, similar as gemstone burst, pressure hitting, large distortion of girding gemstone, brittle– ductile transition of gemstone and zonal decomposition of gemstone mass, which do constantly in deep underground engineering gemstone mass. The impact cargo caused by collision, explosion, extrusion and outburst is the root cause of the dynamic insecurity of the deep gemstone mass. What should be emphasized is that high in- situ stress and blasting excavation disturbance complicate disaster developing medium of deep Stress Rock underground engineering gemstone mass and sprucely increase the difficulty of controlling disaster. This paper is aimed at the exploration status and development trend, of which dynamic characteristics of deep high stress gemstone mass and its damage and failure effect each other under impact, and conduct analysis, in the after stage where I would bandy how to carry out the response law of the deep high– stress gemstone mass under the impact cargo and the medium of catastrophe developing, which is of great significance to make a model of insecurity and fracture elaboration about deep gemstone mass under shock disturbance and to maintain its safety and stability.
With the rapid-fire development of industrialization, the public profitable development has increased the dependence for coffers and energy. Owing to prostration of shallow mineral coffers, the exploitation continues to move deeper into the earth and people anticipate to explore the underground space coffers. In terms of resource exploitation, as well as presently, the depth of coal mining has reached 1500 m, geothermal mining further than 3000 m,non-ferrous over 4350 m, and as to oil painting and gas coffers, it has reached to 7500 m. In the future, deep mining will come the new normal( 1). Since the gemstone mass deep shoveled is in the complex geological terrain of high crustal stress, high earth temperature, high karst water pressure and strong mechanical excavation, blasting vibration, impact unloading and mining disturbance, which is under the pitfalls of severe dynamic marvels as a Stress Rock state of “ three tenors one disturbance ”, and it make its mechanical response of deep gemstone mass obviously distinct from that of the shallow gemstone mass.
During the excavation of deep gemstone mass, the engineering disaster problems are arising; there are some new engineering geological disasters, similar as gemstone burst, impulse earth pressure, large distortion of girding gemstone, brittle transition of gemstone and zonal decomposition of gemstone mass in deep underground engineering gemstone. In the process of deep gemstone excavation, the excavation gemstone not only bears the high static cargo, but also bears the influence of dynamic Stress Rock loads similar as blasting vibration, so the stress condition is different from the shallow gemstone mass. In addition to the shallow gemstone shallow overburden, the ignored tone weight stress can be excavation; only simply consider the firing vibration caused by dynamic cargo, can more break the problems under the gemstone dynamics. For analogous to the deep excavation, if we apply the shallow result, the effect isn’t ideal; hence the mechanics of deep gemstone response characteristics and catastrophe elaboration geste are the most delicate and focus of the study for gemstone mechanics circle.