村庄下条带开采留设煤柱充填回采安全性研究

doi:10.16265/j.cnki.issn1003-3033.2018.08.020

中国安全科学学报 ›› 2018, Vol. 28 ›› Issue (8): 117-122.doi: 10.16265/j.cnki.issn1003-3033.2018.08.020

村庄下条带开采留设煤柱充填回采安全性研究

董羽^1,2 讲师, 黄玉诚² 教授, 赵文平², 刘刚¹ 讲师

1 山东工商学院管理科学与工程学院,山东烟台 264005;
2 中国矿业大学北京资源与安全工程学院,北京 100083

收稿日期:2018-05-14 修回日期:2018-06-25 出版日期:2018-08-28 发布日期:2020-11-25
作者简介:董羽(1987—),男,山东威海人,博士,讲师,主要从事“三下”压煤充填开采及矿山压力及岩层控制等方面的研究。E-mail:dongyu1987@126.com。
基金资助:
中央高校基本科研业务专项资金项目(2010YZ03);山东工商学院博士启动基金资助(BS201522);
山东工商学院青年基金资助(2015QN014)。

Research on safety of backfill mining strip pillars under villages

DONG Yu^1,2, HUANG Yucheng², ZHAO Wenping², LIU Gang¹

1 School of Management Science and Engineering,Shandong Institute of Business and Technology,Yantai Shandong 264005,China;
2 School of Resources and Safety Engineering,China University of Mining & Technology Beijing,Beijing 100083,China

Received:2018-05-14 Revised:2018-06-25 Online:2018-08-28 Published:2020-11-25

摘要/Abstract

摘要： 为探究充填回采条带留设煤柱的安全可行性,首先,提出条带开采留设煤柱充填回采方案,通过理论计算充填体荷载及强度,分析充填体的稳定性;其次,根据条带开采后岩层移动情况确定预计参数,采用概率积分法计算充填回采后地表移动与变形,结合建筑物损坏等级评定标准,分析地表建筑受损情况,验证充填回采条带煤柱的适用性;最后,以佛店村庄下充填回采条带煤柱为实例进行分析。结果表明:条带充填体荷载22.3 MPa,充填体强度31.3 MPa,充填体安全系数1.41,可使地表保持长期稳定。采用充填回采方案可将地表移动变形控制在Ⅱ级变形范围内,使地表建筑的正常使用不受影响。

关键词: 村庄下压煤, 条带煤柱, 充填回采, 地表变形, 房屋损坏

Abstract: In order to explore the safety and feasibility of miningtheretaining strip pillars with backfill,firstly,a backfill plan was proposed,and the stability of filling body was analyzed by calculating the load and strength of filling body.Then,the prediction parameters were determined according to the movement of rock strata after strip mining.The probability integral method was used to predict the surface movement and deformation after backfill.The damage to surface buildings was analyzed to verify the applicability of backfill with evaluation standards for building damage.Lastly,backfill mining strip pillars under the Fodian villages were taken as an example,researches on and analyses of which were carried out.The results show that the backfill load is 22.3 MPa,the backfill strength is 31.1 MPa,the backfill safety factor is 1.41,which can maintain long-term stability of the ground,and that the ground surface movement and deformation controlled by backfill is in the range of Ⅱ-level,and the normal use of the surface buildings will not be affected by backfill.

Key words: coal seam under villages, strip coal pillars, backfill mining, ground deformation, damage to buildings

中图分类号:

X936

董羽, 黄玉诚, 赵文平, 刘刚. 村庄下条带开采留设煤柱充填回采安全性研究[J]. 中国安全科学学报, 2018, 28(8): 117-122.

DONG Yu, HUANG Yucheng, ZHAO Wenping, LIU Gang. Research on safety of backfill mining strip pillars under villages[J]. China Safety Science Journal, 2018, 28(8): 117-122.

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村庄下条带开采留设煤柱充填回采安全性研究

Research on safety of backfill mining strip pillars under villages

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