Tectonic Evolution Characteristics of Jixian Coalfield and Its Influence on Rock Burst

Based on the characteristics of tectonic evolution, coal forming activities, the measurement results of in-situ stress at 12 different points in 4 coal mines of Jixian coal mining areas, it’s obtained that the stress measurement data discreteness is very great under the influence of the composite superimposition of multi-stage tectonic movement, the horizontal stress is predominate in depth and the value of maximum horizontal principal stress is more than 30 MPa, the type of stress field belongs to σ_H>σ_h>σ_v. The reason and the influence factors of rock burst accident in Jixian Coal Field was analyzed from the view of regional tectonic stress, the structure of coal rock and local mining stress,which provides development direction and design suggestion for geo-dynamic division and development and layout during mining in deep area.