FURTHER RESEARCH OF PREVENTION AND CURE MEASURES ON THE RUPTURE OF SHAFT-WALL IN MINE

In recent years, frozen shaft rupture has become a difficult problem again in China with the increase of the depth of soil layer around shaft. The main reason which shaft rupture has not been resolved lies in different views on shaft rupture factory. In this paper, the main factors causing shaft rupture and analyzed, on basis of which a series of prevention and cure measures on shaft rupture are presented. The principle of prevention and cure of shaft rupture are that the primary stress at dangerous point is reduced and the stress condition at dangerous point is imporved. The research results in present paper have important function to the prevention and cure of shaft rupture.