综放工作面过“三方危险区域”复合动力灾害防治及效果

Prevention and Control of Compound Power Disaster of "Three-party Dangerous Area" in Fully Mechanized Top-coal Caving Face

冲击地压与瓦斯复合动力灾害严重影响工作面正常回采,为了有效防治高瓦斯特厚煤层综放工作面回采初期、单面见方区域、周期来压等"三方危险区域"冲击地压与瓦斯共同作用下动力灾害。合理确定"三方危险区域"位置,结合工作面正常回采现状,研究提出综放工作面过"三方危险区域"时冲击地压与瓦斯复合动力灾害防治关键技术,并进行了现场试验。

In order to effectively control the early stage of the fully mechanized top coal caving face in the high gassy thick coal seam, the single-sided square area, the cycle pressure and other ＂three-party dangerous area＂ impact ground pressure and gas together. In order to effectively control the normal recovery of the working face, under the action of power disaster. Puts forward the key technologies of rockburst and gas complex disaster prevention and control in the fully mechanized top coal caving mining face with the ＂three-party dangerous area＂, and the field test was conducted.