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[1]王志强,田野,王树帅,等.基于基本顶断裂位置分析剩余煤柱稳定性*[J].中国安全生产科学技术,2022,18(8):51-58.[doi:10.11731/j.issn.1673-193x.2022.08.008]
　WANG Zhiqiang,TIAN Ye,WANG Shushuai,et al.Analysis on stability of residual coal pillars based on fracture position of basic roof[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2022,18(8):51-58.[doi:10.11731/j.issn.1673-193x.2022.08.008]
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基于基本顶断裂位置分析剩余煤柱稳定性*
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
18
期数:
2022年8期
页码:
51-58
栏目:
职业安全卫生管理与技术
出版日期:
2022-08-31

文章信息/Info

Title:
Analysis on stability of residual coal pillars based on fracture position of basic roof
文章编号:
1673-193X(2022)-08-0051-08
作者:
王志强; 田野; 王树帅; 牟皓奇; 刘吟苍
（1.中国矿业大学（北京） 能源与矿业学院，北京 100083；
2.中国矿业大学（北京） 力学与建筑工程学院，北京 100083）
Author(s):
WANG Zhiqiang;  TIAN Ye;  WANG Shushuai;  MU Haoqi;  LIU Yincang
(1.School of Energy and Mining Engineering,China University of Mining & Technology (Beijing),Beijing 100083,China;
2.School of Mechanics and Civil Engineering,China University of Mining and Technology (Beijing),Beijing 100083,China)
关键词:
基本顶断裂位置; 煤柱稳定性; 煤柱极限宽度; 影响因素分析; 现场实测
Keywords:
fracture position of basic roof;  coal pillar stability;  limit width of coal pillar;  analysis of influencing factors;  on-site monitoring
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2022.08.008
文献标志码:
A
摘要:
为简化支承应力表达式及全面分析煤柱稳定性，基于基本顶断裂位置建立工作面剩余煤柱载荷力学模型，将指数函数型支承应力曲线简化为与其拟合的幂函数抛物线，推导出剩余煤柱载荷及极限宽度B表达式。计算得出312工作面基本顶断裂位置与非开采帮塑性区边缘距离d为8.6~11.5 m，B为8.06~8.85 m。研究结果表明：随着d增加，煤柱载荷及B均逐渐增大；B随煤层黏聚力与内摩擦角的增加而减小，随煤层埋深、应力集中系数、侧压力系数、煤层厚度及工作面采高的增加而增大。研究结果有助于更加全面地分析煤柱稳定性，为工程实践提供一定理论指导。
Abstract:
In order to simplify the expression of supporting stress and comprehensively analyze the stability of coal pillars,based on the fracture location of basic roof,a mechanical model of the load on the residual coal pillars was established.The expressions of load and limit width (B) of the residual coal pillars were derived by simplifying the exponential function type supporting stress curve into a power function parabola fitted to it.The distance between the fracture location of basic roof in 312 working face and the boundary of the non-mining side plastic zone (d) was about 8.6~11.5 m,and B was about 8.06~8.85 m.The results showed that both the load and B of the coal pillars increased gradually with the increase of d.The B decreased with the increase of coal seam cohesion force and internal friction angle,and increased with the increase of coal seam burial depth,stress concentration coefficient,lateral pressure coefficient,coal seam thickness and working height.The research results help to analyze the stability of coal pillars more comprehensively,and provide certain theoretical guidance for engineering practice.

参考文献/References:

［1］黄荣宾.综采工作面末采阶段矿压显现规律研究［D］.西安：西安科技大学,2015.
［2］李臣,郭晓菲,霍天宏,等.预掘双回撤通道煤柱留设及其围岩稳定性控制［J］.华中科技大学学报(自然科学版),2021,49(4):20-25，31. LI Chen,GUO Xiaofei,HUO Tianhong,et al.Coal pillar design of pre-excavated double equipment withdrawal channel and its surrounding rock stability control［J］.Journal of Huazhong University of Science and Technology (Natural Science Edition),2021,49(4):20-25，31.
［3］侯朝炯,马念杰.煤层巷道两帮煤体应力和极限平衡区的探讨［J］.煤炭学报,1989(4):21-29. HOU Chaojiong,MA Nianjie.Stress in in-seam roadway sides and limit equilibriumzone［J］.Journal of China Coal Society,1989(4):21-29.
［4］李树清,潘长良,王卫军.锚注联合支护煤巷两帮塑性区分析［J］.湖南科技大学学报(自然科学版),2007,22(2):5-8. LI Shuqing,PAN Changliang,WANG Weijun.Analysis of plastic region of sidewalls in coal drifts reinforced by association of rock bolt and grouting［J］.Journal of Hunan University of Science & Technology(Natural Science Edition),2007,22(2):5-8.
［5］于远祥,柯达,王京滨,等.基于弹性理论的煤帮极限平衡区宽度确定方法探讨［J］.煤炭学报,2019,44(11):3340-3348. YU Yuanxiang,KE Da,WANG Jingbin,et al.Discussion on determination method of the limit equilibrium zone width based on the deformation analysis of coal wall［J］.Journal of China Coal Society,2019,44(11):3340-3348.
［6］谷拴成,张志飞,杨超凡,等.考虑煤岩体成拱效应的工作面区段煤柱合理尺寸研究［J］.中国安全生产科学技术,2021,17(9):77-83. GU Shuancheng,ZHANG Zhifei,YANG Chaofan,et al.Study on reasonable size of coal pillars in working face section considering arching effect of coal and rock mass［J］.Journal of Safety Science and Technology,2021,17(9):77-83.
［7］王志强,王树帅,苏泽华.工作面回采与支架回撤协同作业新技术［J］.煤炭科学技术,2021,49(2):21-29. WANG Zhiqiang,WANG Shushuai,SU Zehua.New technology of collaborative work between face mining and bracket withdrawal［J］.Coal Science and Technology,2021,49(2):21-29.
［8］谷拴成,黄荣宾,李金华,等.工作面贯通前矿压调整时剩余煤柱稳定性分析［J］.采矿与安全工程学报,2017,34(1):60-66. GU Shuancheng,HUANG Rongbin,LI Jinhua，et al.Mined coal pillars during the pressure adjustment prior to working face transfixion［J］.Journal of Mining and Safety Engineering,2017,34(1):60-66.
［9］孔德中,王兆会,李小萌,等.大采高综放面区段煤柱合理留设研究［J］.岩土力学,2014,35(S2):460-466. KONG Dezhong,WANG Zhaohui,LI Xiaomeng,et al.Study of reasonable width of full-mechanized top-coal caving with large mining height［J］.Rock and Soil Mechanics,2014,35(S2):460-466.
［10］杨军，高玉兵，刘世奇，等.动压扰动采准巷道围岩失稳机理及控制研究［J］.矿业科学学报，2018，3(5)：451-460. YANG Jun,GAO Yubing,LIU Shiqi,et al.Study on failure mechanism and control techniques of the preparation roadway induced by dynamic mining disturbance ［J］.Journal of Mining Science and Technology,2018,3(5):451-460.
［11］马金宝,王胜,宋宗武.基于煤岩应力监测的深井沿空掘巷煤煤柱宽留设研究［J］.煤炭科学技术,2017,45(8):121-127. MA Jinbao,WANG Sheng,SONG Zongwu.Research on width of coal pillar of roadway driving along goaf based on coal-rock stress monitoring［J］.Coal Science and Technology,2017,45(8):121-127.
［12］王炳文，王志强，王树帅，等.实现一巷三用的工作面回采与停采设备回撤协同作业方法［P］.中国专利：CN109882175A 2019-06-14.
［13］王树帅,王志强,黄鑫,等.回撤通道直接顶下沉量计算及其影响因素分析［J］.矿业科学学报,2021,6(4):409-417. WANG Shushuai,WANG Zhiqiang,HUANG Xin,et al.Calculation of direct roof subsidence of retracement channel and analysis of its influencing factors［J］.Journal of Mining Science and Technology,2021,6(4):409-417.
［14］王晓振,许家林,朱卫兵,等.浅埋综采面高速推进对周期来压特征的影响［J］.中国矿业大学学报,2012,41(3):349-354. WANG Xiaozhen,XU Jialin,ZHU Weibing.et al.Influence of high mining velocity on periodic weighting during fully-mechanized mining in a shallow seam［J］.Journal of China University of Mining and Technology,2012,41(3):349-354.
［15］王志强,王树帅,苏泽华,等.走向工作面贯通上山与支架快速回撤技术［J］.中国安全生产科学技术,2020,16(1):18-24. WANG Zhiqiang,WANG Shushuai,SU Zehua,et al.Technologies of uphill transfixion and rapid retracing of brackets in along strike working face［J］.Journal of Safety Science and Technology,2020,16(1):18-24.
［16］王志强,孙中文,徐春虎,等.关于错层位采煤法接续面巷道合理位置的选择［J］.矿业科学学报,2019,4(1):50-57. WANG Zhiqiang,SUN Zhongwen,XU Chunhu,et al.Determine the reasonable haulage roadway position of successive panel based on the split-level mining method［J］.Journal of Mining Science and Technology,2019,4(1):50-57.
［17］马念杰,赵希栋,赵志强,等.掘进巷道蝶型煤与瓦斯突出机理猜想［J］.矿业科学学报,2017,2(2):137-149. MA Nianjie,ZHAO Xidong,ZHAO Zhiqiang,et al.Conjecture about mechanism of butterfly-shape coal and gas outburstin excavation roadway［J］.Journal of Mining Science and Technology,2017,2(2):137-149.

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备注/Memo

备注/Memo:
收稿日期： 2021-12-10
* 基金项目： 国家自然科学基金项目（51774289，52074291）；西部煤炭绿色安全开发国家重点实验室开放基金项目（SKLCRKF1903）
作者简介： 王志强，博士，教授，主要研究方向为矿山压力和岩层控制等。
通信作者： 王树帅，博士研究生，主要研究方向为巷道支护及煤矿充填开采等。
更新日期/Last Update: 2022-09-19