煤炭工程 ›› 2018, Vol. 50 ›› Issue (11): 54-57.doi: 10.11799/ce201811014
• 生产技术 • 上一篇 下一篇
杨腾飞
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摘要： 为了分析沁水煤田厚煤层综放开采的矿压规律，以王坡煤矿3309综放工作面为例，利用顶板压力在线监测系统，记录工作面回采过程中周期来压步距、液压支架立柱的工作阻力变化、前后立柱受力及安全阀开启情况，综合分析厚煤层综放工作面顶板周期来压规律，提出了周期来压前工作面的安全防护措施，为王坡煤矿及沁水煤田邻近矿井综放工作面开采的顶板压力控制提供了依据。
关键词: 厚煤层, 综采放顶煤, 矿压显现, 周期来压, 在线监测, 液压支架
Abstract: In order to analyze the rock pressure law of thick coal seam caving mining in Qinshui coalfield, the author took the 3309 caving mining face in Wangpo coal mine as an example, and used the roof pressure on-line monitoring system to record the periodical weighting, the change of the working resistance of the hydraulic support column, the force of the vertical column and the opening of the safety valve. In this paper, the periodic pressure law of the roof of the caving mining face in thick coal seam was analyzed, and the safety protection measures for the working face before the periodic pressure were put forward, which provided the basis for the roof pressure control in the mining face of the coal mine in the adjacent coal mine in the Qinshui coalfield.
中图分类号:
TD323
杨腾飞. 厚煤层综采放顶煤开采矿压显现规律研究[J]. 煤炭工程, 2018, 50(11): 54-57.
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http://www.coale.com.cn/CN/Y2018/V50/I11/54
