Coal seam hard roof deep hole blasting relief technology and optimization

机译：煤层硬顶深孔爆破卸压技术及优化

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Blasting pressure release of roof deep hole in the fully-mechanized face interconnection can shorten the first collapse step distance of roof, to avoid rock burst disasters that may caused a large area of roof collapse. Based on the actual geological condition of 6303 working face interconnection in Jining No.3 Coal Mine, from the rock blasting mechanism, this article proposes the two schemes of blasting pressure release of roof interconnection. By using of Ansys-dyna finite dynamic analysis software, this paper simulates blasting effect to the two schemes of deep hole blasting. With the analysis of numerical simulation results, we achieve parameter optimization and obtain the best blasting scheme.

机译：综压工作面顶板深孔的爆破释放可以缩短顶板的第一次塌落步距，避免可能造成大面积顶板坍塌的岩爆灾害。根据济宁三矿6303工作面互连的实际地质情况，从爆破机理出发，提出了顶板互连爆破泄压的两种方案。利用Ansys-dyna有限动态分析软件，对两种深孔爆破方案进行了爆破效果模拟。通过对数值模拟结果的分析，我们实现了参数优化并获得了最佳的爆破方案。

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来源
《2011 Second International Conference on Mechanic Automation and Control Engineering》|2011年|p.2998-3001|共4页
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Li Shuanghui; Chen Xuehua;
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中图分类计算技术、计算机技术;
关键词
blasting pressure release; deep hole blasting; numerical simulation; parameters optimization;

机译：爆破压力释放;深孔爆破;数值模拟;参数优化;

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2. Coupling Technology of Deep-Hole Presplitting Blasting and Hydraulic Fracturing Enhance Permeability Technology in Low-Permeability and Gas Outburst Coal Seam: A Case Study in the No. 8 Mine of Pingdingshan, China [J] . Wei Wang, Yanzhao Wei, Minggong Guo, Advances in civil engineering . 2021,第a期

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3. A Study of Fractal Deep-Hole Blasting and Its Induced Stress Behavior of Hard Roof Strata in Bayangaole Coal Mine, China [J] . Zuo Jianping, Li Zhengdai, Zhao Shankun, Advances in civil engineering . 2019,第PTa2期

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4. Technology of deep hole blasting relief of the hard roof of coal seams and optimization [C] . S.H. Li, X.H. Chen, P.F. Xie, ISRM international young scholars' symposium on rock mechanics . 2012

机译：煤层气硬顶的深孔爆破技术与优化
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6. Permeability enhancement of deep hole pre-splitting blasting in the low permeability coal seam of the Nanting coal mine [O] . Zhengyi Ti, Feng Zhang, Jin Pan, 2012

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7. Cooperative Control Mechanism of Long Flexible Bolts and Blasting Pressure Relief in Hard Roof Roadways of Extra-Thick Coal Seams: A Case Study [O] . Zhe Xiang, Nong Zhang, Zhengzheng Xie, 2021

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8. Development and Evaluation of Technology for Methane Production from a Deep Coal Seam in the Piceance Basin. Final Report April 15, 1983-December 31, 1987 [R] . Jeu, S. J. , Logan, T. L. , Decker, A. D. , 1988

机译：piceance盆地深部煤层瓦斯生产技术的发展与评价。最终报告1983年4月15日至1987年12月31日

Coal seam hard roof deep hole blasting relief technology and optimization

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