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| 上解放层开采对下煤层卸压作用研究 | |
| 引用本文： | 吴向前,窦林名,吕长国,郑有雷.上解放层开采对下煤层卸压作用研究[J].煤炭科学技术,2012,40(3):28-31,61. |
| 作者姓名： | 吴向前 窦林名 吕长国 郑有雷 |
| 作者单位： | 1. 中国矿业大学煤炭资源与安全开采国家重点实验室,江苏徐州221008／充州煤业股份有限公司济宁三号煤矿,山东邹城272069 2. 中国矿业大学煤炭资源与安全开采国家重点实验室,江苏徐州,221008 3. 充州煤业股份有限公司济宁三号煤矿,山东邹城,272069 |
| 基金项目： | 国家重点基础研究发展计划(973计划)资助项目(2010CB226805);国家自然科学基金资助项目(50490273,51104150);煤炭资源与安全开采国家重点实验室自主研究课题资助项目(SKLCRSM10X05) |
| 摘 要： | Based on the geological conditions and mining parameters of the coal mining face in No.12 mining block of Jining No.3 Mine,a similar simulation in the lab was conducted on the mining process of the coa... |
| 关 键 词： | 冲击地压 解放层 相似模拟 卸压作用 被保护层 |
Study on Upper Liberated Seam Mining to Pressure Releasing Function of Low Seam |
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| WU Xiang-qian,DOU Lin-ming,Lü Chang-guo,ZHENG You-lei.Study on Upper Liberated Seam Mining to Pressure Releasing Function of Low Seam[J].Coal Science and Technology,2012,40(3):28-31,61. | |
| Authors: | WU Xiang-qian DOU Lin-ming Lü Chang-guo ZHENG You-lei |
| Affiliation: | 1.National Key Lab of Coal Resources and Safety Mining,China University of Mining and Technology,Xuzhou 221008,China; 2.Jining No.3 Mine,Yanzhou Coal Mining Corporation Ltd.,Zoucheng 272069,China) |
| Abstract: | Based on the geological conditions and mining parameters of the coal mining face in No.12 mining block of Jining No.3 Mine,a similar simulation in the lab was conducted on the mining process of the coal mining face in the uper liberated seam.In combination with the site measured results,the pressure releasing function of the uper liberated seam mining to the low seam was analyzed.The study results showed that after the liberated seam mined,selling and deformation occurred in the low seam and rock strata and the integrality of the low seam was destroyed.Great number of the elastic energy were released and the seam stress of the liberated seam were released.The max stress released rate was 19.2% and a good pressure releasing effect was well played.The calculation of the site results showed that the pressure releasing angle along the coal mining face strike was 77° and the inclined pressure releasing angle was 79°. |
| Keywords: | mine pressure bumping liberated seam similar simulation pressure releasing function protected seam |
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