浅埋煤层大采高工作面区段煤柱尺寸优化研究
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摘要
以榆林地区浅埋煤层大采高工作面区段煤柱为研究对象,分析了上覆岩层的垮落结构和区段煤柱的受力状态,推出了区段煤柱合理宽度的理论计算公式,指出计算机FLAC3D数值模拟优化区段煤柱尺寸的研究方法,阐明实验室相似材料模拟实验内容与方式以及监测煤柱应力与回采巷道变形监测点的具体布置方法,研究结论对榆林地区煤矿区段煤柱尺寸优化设计和安全高效生产以及促进矿区可持续发展具有重要的现实意义。
By taking the section coal pillar of large height mining face for shallow coalseam as the research object in Yulin,the article analyzes the collapse structure of overlying strata and stress states of section coal pillar,derives the theoretical calculation formula of section coal pillar,and shows the research methods of size optimization of section coal pillar using FLAC3 D. Furthermore,the experiment content of similar material simulation in laboratory and the specific assign position of monitoring points on pillar stress,mining roadway deformation are described in this paper. The research conclusions has an important practical significance for size optimization of section coal pillar,safety and high effective mining,and sustainable development of mining area in Yulin.
By taking the section coal pillar of large height mining face for shallow coalseam as the research object in Yulin,the article analyzes the collapse structure of overlying strata and stress states of section coal pillar,derives the theoretical calculation formula of section coal pillar,and shows the research methods of size optimization of section coal pillar using FLAC3 D. Furthermore,the experiment content of similar material simulation in laboratory and the specific assign position of monitoring points on pillar stress,mining roadway deformation are described in this paper. The research conclusions has an important practical significance for size optimization of section coal pillar,safety and high effective mining,and sustainable development of mining area in Yulin.
引文
[1]刘晓东.陕北侏罗纪煤田煤炭资源勘查利用现状分析[J].地下水,2017,39(5):126-128.
[2]张伟,张金锁,许建.煤炭资源安全绿色高效开发模式研究—以陕北侏罗纪煤田为例[J].地域研究与开发,2016,35(2):139-144.
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[5]王永革,肖辉赞.大采高工作面区段煤柱合理尺寸的数值模拟[J].辽宁工程技术大学学报(自然科学版),2011,30(5):645-648.
[6]王昌祥.浅埋软岩大采高煤层区段煤柱尺寸优化研究[J].煤炭技术,2016,35(3):39-41.
[7]张杰,霍军鹏,王斌,等.浅埋煤层区段煤柱稳定性实验分析及应用[J].矿业安全与环保,2016,43(1):30-33.
[8]黄庆享,杜君武,刘寅超.浅埋煤层群工作面合理区段煤柱留设研究[J].西安科技大学学报,2016,36(1):19-23.
[9]题正义,潘进,田臣,等. 7. 0m采高综采面回采巷道变形破坏规律研究[J].中国安全生产科学技术,2016,12(4):57-61.
[10]杨刚帅,宁建国,王俊,等.鄂尔多斯矿区大采高综采工作面合理区段煤柱尺寸研究[J].煤矿安全,2016,47(2):66-68.
[11]张杰,付二军,田云鹏,等.南梁煤矿区段煤柱留设宽度优化设计[J].煤炭工程,2015,47(7):15-17.
[12]任建喜,王东星,王江,等.浅埋煤层大采高区段煤柱合理宽度留设研究[J].煤炭技术,2016,35(9):1-3.
[13]许兴亮,田素川,李俊生,等.小纪汗煤矿工作面顶板破断结构对巷道矿压影响规律研究[J].煤炭学报,2017,42(2):308-314.
[2]张伟,张金锁,许建.煤炭资源安全绿色高效开发模式研究—以陕北侏罗纪煤田为例[J].地域研究与开发,2016,35(2):139-144.
[3]钱鸣高,石平五.矿山压力与岩层控制[M].徐州:中国矿业大学出版社,2003:218-267.
[4]郭鹏.东坡煤矿综放开采区段煤柱稳定性研究[D].西安:西安科技大学,2014:1-16.
[5]王永革,肖辉赞.大采高工作面区段煤柱合理尺寸的数值模拟[J].辽宁工程技术大学学报(自然科学版),2011,30(5):645-648.
[6]王昌祥.浅埋软岩大采高煤层区段煤柱尺寸优化研究[J].煤炭技术,2016,35(3):39-41.
[7]张杰,霍军鹏,王斌,等.浅埋煤层区段煤柱稳定性实验分析及应用[J].矿业安全与环保,2016,43(1):30-33.
[8]黄庆享,杜君武,刘寅超.浅埋煤层群工作面合理区段煤柱留设研究[J].西安科技大学学报,2016,36(1):19-23.
[9]题正义,潘进,田臣,等. 7. 0m采高综采面回采巷道变形破坏规律研究[J].中国安全生产科学技术,2016,12(4):57-61.
[10]杨刚帅,宁建国,王俊,等.鄂尔多斯矿区大采高综采工作面合理区段煤柱尺寸研究[J].煤矿安全,2016,47(2):66-68.
[11]张杰,付二军,田云鹏,等.南梁煤矿区段煤柱留设宽度优化设计[J].煤炭工程,2015,47(7):15-17.
[12]任建喜,王东星,王江,等.浅埋煤层大采高区段煤柱合理宽度留设研究[J].煤炭技术,2016,35(9):1-3.
[13]许兴亮,田素川,李俊生,等.小纪汗煤矿工作面顶板破断结构对巷道矿压影响规律研究[J].煤炭学报,2017,42(2):308-314.