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深孔预裂爆破增透技术在“三软”煤层中的应用与实践
Application and Practice of Deep Presplit Blasting AR Technology in "Three Soft" Seam
【摘要】 为了解决"三软"难抽煤层消突和瓦斯治理问题,文章以代表性的埋藏深、赋存不稳定,瓦斯含量大,煤坚固性系数低等具有构造煤特点的采煤工作面作为试验区,引进深孔预裂爆破增透技术进行试验,阐述了增透技术的工作原理、试验方法,对效果进行分析、论证,并介绍了相关联高压注水技术与增透技术的混合应用,达到瓦斯综合治理的效果。
【Abstract】 In order to solve the issues of "three soft" seam difficult pump gas and control gas the article takes the coal mining face with the characteristics of buried deep,occurrence of instability,big low coal solid for test area,introduced deep hole presplit blasting AR technology to test technology thoroughly,explained the principle,test methods,made an analysis of the effects,feasibility work studies and presented associated high-pressure water injection technology and AR mixed application, which have reached the gas comprehensive management effects.
【关键词】 预裂爆破;
高压注水;
煤体卸压;
煤体增透;
【Key words】 presplit blasting; high-pressure water injection; coal relieved; coal-AR;
【Key words】 presplit blasting; high-pressure water injection; coal relieved; coal-AR;
- 【文献出处】 煤炭技术 ,Coal Technology , 编辑部邮箱 ,2008年11期
- 【分类号】TD235
- 【被引频次】7
- 【下载频次】167