| 超高压水力割缝参数对煤体卸压影响研究及应用 |
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| 引用本文： | 姚春雨.超高压水力割缝参数对煤体卸压影响研究及应用[J].中州煤炭,2020,0(12):42-46. |
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| 作者姓名： | 姚春雨 |
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| 作者单位： | （永城永安矿山安全技术工程有限公司，河南 永城 476600） |
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| 摘 要： | 为了提高瓦斯抽采效率，研究了超高压水力割缝工艺操作流程，主要为装备准备阶段、连接阶段和检查阶段。采用数值模拟软件，分析了割缝深度、割缝宽度和割缝间距等超高压水力割缝参数对煤体卸压的影响，得出了超高压水力割缝参数最优参数，分别为割缝深度1.0 m、割缝宽度0.1 m、割缝间距3.0 m，并进行了工程实践。研究表明，采用超高压水力割缝技术后，瓦斯抽采浓度和瓦斯抽采流量都得到了有效提高。
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| 关 键 词： | 超高压水力割缝 割缝深度 割缝宽度 割缝间距 瓦斯抽采浓度 瓦斯抽采流量 |
Research and application of ultra-high pressure hydraulic slotting parameters on pressure relief of coal body |
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| Yao Chunyu. Research and application of ultra-high pressure hydraulic slotting parameters on pressure relief of coal body[J].Zhongzhou Coal,2020,0(12):42-46. |
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| Authors: | Yao Chunyu |
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| Affiliation: | （Yongcheng Yongan Mine Safety Technology Engineering Co.，Ltd.，Yongcheng 476600，China） |
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| Abstract: | In order to improve the efficiency of gas drainage，the operation flow of the ultra-high pressure hydraulic slitting process was studied，which mainly included the equipment stage，the connection stage and the inspection stage.Using numerical simulation software，the influence of ultra-high pressure hydraulic slotting parameters such as slot depth，slot width and slot spacing on coal pressure relief was analyzed，and the optimal parameter of ultra-high pressure hydraulic slotting parameters was determined to be 1.0 m，the slot width is 0.1 m，and the slot spacing is 3.0 m.Engineering practice has been carried out.After the ultra-high pressure hydraulic slotting technology was adopted，the gas drainage concentration and gas drainage flow have been effectively improved. |
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| Keywords: | ,ultra-high pressure hydraulic slot, slot depth, slot width, slot spacing, gas drainage concentration, gas drainage flow |
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