采煤工作面过上覆刀把型采空区防治冲击地压的方法
By determining the positional relationship between the coal face and the goaf, and designing targeted drilling and charging methods, pre-fracture blasting was carried out in areas with strong and weak impact hazards. This solved the problem of ineffective rockburst prevention during mining under the goaf, and enabled efficient and safe coal mine production.
CN115726784BActive Publication Date: 2026-07-17SHENHUA XINJIANG ENERGY CO LTD +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHENHUA XINJIANG ENERGY CO LTD
- Filing Date
- 2022-11-08
- Publication Date
- 2026-07-17
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Figure CN115726784B_ABST
Abstract
本发明提供了一种采煤工作面过上覆刀把型采空区防治冲击地压的方法，包括：判断采煤工作面是否满足过刀把型采空区的条件；当采煤工作面满足过刀把型采空区的条件时，判断采煤工作面和刀把型采空区的相对位置关系，并根据采煤工作面和刀把型采空区的相对位置关系确定采煤工作面的煤层顶板的强冲击危险区和弱冲击危险区；针对强冲击危险区设计第一钻孔方案和第一装药方式，以对强冲击危险区进行爆破预裂；针对弱冲击危险区设计第二钻孔方案和第二装药方式，以对弱冲击危险区进行爆破预裂，解决了现有技术中的在刀把型采空区下开采时，冲击地压防治效果不明显的问题。
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