| 浅埋煤层长壁工作面矿压显现规律现场监测研究 |
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| 引用本文： | 任建喜,史喆,党超,王金华,郇澜.浅埋煤层长壁工作面矿压显现规律现场监测研究[J].中国安全生产科学技术,2011,7(12):22-26. |
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| 作者姓名： | 任建喜 史喆 党超 王金华 郇澜 |
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| 作者单位： | 西安科技大学建筑与土木工程学院,西安,710054 |
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| 基金项目： | 陕西省教育厅科研计划资助项目（编号：2010JK667）; 高等学校博士学科点专项科研基金（编号：20096121110004） |
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| 摘 要： | 浅埋条件下的煤层开采,受上覆岩层移动影响而呈现与深埋煤层明显不同的特征.本文以神府矿区某矿1301工作面矿压观测为工程背景依托,应用“三量法”对工作面矿压显现规律进行研究,以工作面三个测区支架荷载和活柱下缩量为重点分析.研究表明:该工作面来压动载系数为1.5 -1.6,来压期间支架压力比平时大1- 13MPa；初次来压持续时间长,初次来压步距在55.9-56.3m,三个测区的周期来压步距为14.6 - 17.6m；且三个测区观测表明:中测区由于受工作面两侧煤壁影响较小,矿压显现程度同上下测区比较明显.
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| 关 键 词： | 浅埋煤层 长壁综采工作面 矿压显现规律 现场观测 |
Research on behavior law of mine pressure on long-wall face in shallow seam with in-situ monitoring |
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| REN Jian-xi
,
SHI zhe
,
DANG Chao
,
WANG Jin-hua
,
HUAN Lan.Research on behavior law of mine pressure on long-wall face in shallow seam with in-situ monitoring[J].Journal of Safety Science and Technology,2011,7(12):22-26. |
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| Authors: | REN Jian-xi SHI zhe DANG Chao WANG Jin-hua HUAN Lan |
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| Institution: | (School of Architecture and Civil Engineering,Xi＇an University of Science and Technology,Xi＇an 710054,China) |
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| Abstract: | Seam mining in shallow condition,affected by overlying strata movement,showed obviously different characteristics with deep seam.Based on mineral pressure observation of 1301 mining face in one coal mine of Shenfu mining area,the behavior law of mine pressure was studied with ＂three measuring method＂.Support loading and descending amount of piston were detailedly analyzed.The results showed that the dynamic load coefficient of this working face was between 1.5 and 1.6.When periodic roof pressure occurred supporter pressure roof pressure was 1MPa to 13MPa bigger than usual time.First roof pressure was 55.9m to 56.3m and periodic roof pressure length was 14.6m to 17.6m.Mine pressure strength of middle test area affected by both sides coal wall was stronger. |
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| Keywords: | shallow seam long-wall combined-mining face behavior law of mine pressure in-situ monitoring |
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