Abstract Rock bursts are one of the most common dynamic disasters in coal mines and seriously affect safety production. At present, there three types rock bursts: fault‐structure, fold‐structure, thick/hard‐roof bursts. First, paper proposed an innovative technology for mine ground fracturing to control those Then, new method, its devices, process, monitoring technique cracks were introduced. N...

Abstract Strain rock burst is one of the main types bursts. Studying mechanical response and acoustic emission characteristics coal under quasi-static loading significant to control prevent strain In this paper, coal’s strength, deformation, energy evolution, failure were analyzed with different rates loading. The strength show a rate effect certain extent elastic modulus decreases first then i...

Confined aquifers widely exist in the strata of Ordos mining area. Water drainage before is an effective measure to avoid water inrush disasters caused by connectivity between mining-induced roof fractures and aquifers. However, rock burst occur frequently process many working faces. The statistics show that surrounding nine faces five mines has suffered different degrees burst, which seriously...