Mine dynamic disaster classification control method

Abstract

The invention discloses a classification control method for mine dynamic disasters. The classification includes that local mine dynamic disasters are rockbursts, near-area dynamic disasters are rock bursts, and remote-area dynamic disasters are mine earthquakes. Aiming at rockburst dynamic disasters, an excavation compensation control method is proposed, using anti-shock and energy-absorbing materials, which have the characteristics of high prestress, constant resistance energy absorption and high-strength yielding pressure, and adopting roadway smooth surface blasting and coal wall drilling to relieve pressure and surrounding rock loosening blasting and other surrounding rock pressure relief control methods. Aiming at rockburst and mine vibration disasters, a mining compensation control method is proposed, using anti-shock and energy-absorbing materials, blasting pre-splitting roof cutting, instantaneous expansion cracking roof cutting and intensive drilling roof cutting and other roof cutting and pressure relief control methods. Through on-site monitoring and evaluation of the project, the design scheme is optimized in real time. The invention provides a dynamic disaster classification control method, which is of great significance for ensuring mine safety production.

Description

technical field [0001] The present application relates to the technical field of mine mining, in particular to a method for classifying and controlling mine dynamic disasters. Background technique [0002] At present, due to the gradual exhaustion of resources in shallow mines in my country, the excavation depth of underground mines is increasing. With the increase of the excavation depth of the underground engineering of the mine, the complex geological conditions such as high ground stress and broken surrounding rock in the process of the mine construction have increased, and the types of mine dynamic disasters have also increased. Under the condition of high in-situ stress, the disturbance of surrounding rock excavation in underground mine engineering can easily lead to the occurrence of dynamic disasters such as rock burst, rock burst, and mine shock, which seriously affects the construction and production safety of underground mine engineering. [0003] For mine roadwa...

AI Technical Summary

Problems solved by technology

Under the condition of high ground stress, the excavation disturbance of surrounding rock in mine underground engineering can easily lead to dynamic disasters such as rockburst, rock burst, mine earthquake, etc., seriously affecting mine underground engineering construction and production safety

[0003] As far as mine roadway support is concerned, the general theory and new Austrian method theory adopted by traditional methods can no longer adapt to complex conditions such as high ground stress and broken surrounding rock in deep mines, and it is difficult to ensure the safety and stability of roadway surrounding rock

As far as mine mining is concerned, in deep mines, dynamic disaster accidents under traditional mining methods occur frequently, seriously affecting mine safety and production

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