|本期目录/Table of Contents|

[1]龚轩,宋亮亮,王猛,等.综采面沿空巷道超前动压区煤柱失稳效应与锚注加固技术*[J].中国安全生产科学技术,2024,20(9):81-87.[doi:10.11731/j.issn.1673-193x.2024.09.009]
　GONG Xuan,SONG Liangliang,WANG Meng,et al.Instability effect of coal pillar in advanced dynamic pressure zone of gob-side entry in fully-mechanized mining face and bolt-grouting reinforcement technology[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2024,20(9):81-87.[doi:10.11731/j.issn.1673-193x.2024.09.009]
点击复制

综采面沿空巷道超前动压区煤柱失稳效应与锚注加固技术*
分享到：

《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
20
期数:
2024年9期
页码:
81-87
栏目:
职业安全卫生管理与技术
出版日期:
2024-09-30

文章信息/Info

Title:
Instability effect of coal pillar in advanced dynamic pressure zone of gob-side entry in fully-mechanized mining face and bolt-grouting reinforcement technology
文章编号:
1673-193X(2024)-09-0081-08
作者:
龚轩; 宋亮亮; 王猛; 杨玉中
（1.平顶山天安煤业股份有限公司生产处，河南 平顶山 467000；
2.河南理工大学 能源科学与工程学院，河南 焦作 454000）
Author(s):
GONG Xuan;  SONG Liangliang;  WANG Meng;  YANG Yuzhong
(1.Production Department of Pingdingshan Tianan Coal Industry Co.,Ltd.,Pingdingshan Henan 467000,China;
2.School of Energy Science and Engineering,Henan Polytechnic University,Jiaozuo Henan 454000,China)
关键词:
超前动压区; 沿空巷道; 煤柱宽度; 超前支护; 注浆加固
Keywords:
advanced dynamic pressure zone;  gob-side entry;  coal pillar width;  advanced support;  grouting reinforcement
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2024.09.009
文献标志码:
A
摘要:
为探究综采面沿空巷道超前动压区煤柱对巷道围岩整体稳定的影响规律，综合采用数值模拟、工程应用等方法，建立沿空巷道超前巷道数值分析模型，研究综采面回采期间不同煤柱宽度下沿空巷道围岩力学和变形响应特征。研究结果表明：护巷煤柱宽度小于5 m时，工作面帮为采动应力主要承载结构，其内部应力及变形均大于煤柱帮，此时工作面帮应作为超前动压区重点加固对象，随着护巷煤柱宽度增加，煤柱承载应力逐渐增加、变形增大，护巷煤柱宽度增加至5 m以上时，煤柱承载应力显著增加，采动应力由沿空巷道两帮围岩共同承载，超前动压区应同时加强两帮支护，基于此开发超前动压区沿空巷道锚注加固技术，并进行工程应用。研究结果可为平顶山矿区类似条件沿空巷道超前控制提供一定参考。
Abstract:
In order to study the influence law of coal pillar on the overall stability of roadway surrounding rock in advanced dynamic pressure area of gob-side entry in the fully-mechanized mining face,a numerical analysis model of advanced roadway in the gob-side entry was established by using the numerical simulation and engineering application methods,and the mechanical and deformation response characteristics of surrounding rock in gob-side entry under different pillar widths during the mining of fully-mechanized mining face were studied.The results show that when the width of roadway protection coal pillar is less than 5 m,the working face wall is the main load-bearing structure of mining dynamic stress,and its internal stress and deformation are greater than those of the coal pillar wall.At this time,the working face wall should be the key reinforcement object in the advanced dynamic pressure zone.With the increase of the width of roadway protection coal pillar,the bearing stress of coal pillar gradually increases,and the deformation increases.When the width of roadway protection coal pillar increases to more than 5 m,the bearing stress of coal pillar increases significantly,and the mining stress is jointly carried by the surrounding rock on the two sides of gob-side entry.The support of the two sides should be strengthened at the same time in the advanced dynamic pressure zone.Based on this,the bolt-grouting reinforcement technology of gob-side entry in the advanced dynamic pressure zone is developed and applied in engineering.The research results can provide some reference for the advanced control of gob-side entry with similar conditions in Pingdingshan mining area.

参考文献/References:

［1］张杰,杨涛.缓倾斜特厚煤层区段煤柱尺寸研究［J］.煤炭工程,2017,49(10):38-42. ZHANG Jie,YANG Tao.Study on section coal pillar size in gently inclined and extra-thick coal seam［J］.Coal Engineering,2017,49(10):38-42.
［2］张无敌,陶红菲,杨洁，等.松软破碎复合顶板沿空掘巷窄煤柱宽度与围岩控制技术［J］.煤矿安全,2023,54(4):132-139. ZHANG Wudi,TAO Hongfei,YANG Jie,et al.Study on narrow coal pillar width and surrounding rock control technology of gob-side entry driving with soft and broken composite roof［J］.Safety in Coal Mines,2023,54(4):132-139.
［3］王统海,申世豹,赵仁宝，等.深井厚煤层沿空掘巷煤柱留设宽度与围岩控制［J］.煤炭技术,2022,41(4):22-27. WANG Tonghai,SHEN Shibao,ZHAO Renbao,et al.Width of coal pillar layout and surrounding rock control in roadway driving along goaf in deep well thick coal seam［J］.Coal Technology,2022,41(4):22-27.
［4］董崇泽,翟志伟,沈玉旭.小煤柱沿空掘巷巷道变形规律研究［J］.煤炭技术,2022,41(1):20-24. DONG Chongze,ZHAI Zhiwei,SHEN Yuxu.Research on deformation law of entry driven along gob-side in small coal pillars ［J］.Coal Technology,2022,41(1):20-24.
［5］冯友良.考虑采空区压实效应的沿空掘巷煤柱设计方法研究［J］.中国安全生产科学技术,2021,17(11):53-59. FENG Youliang.Study on coal pillar design method of gob-side entry driving considering gob compaction effect.［J］.Journal of Safety Science and Technology,2021,17(11):53-59.
［6］田伟鹏,崔佐军,范小龙.19 m特厚煤层孤岛综放面小煤柱沿空巷道煤柱宽度选择及工程应用［J］.中国矿业,2023,32(2):112-119. TIAN Weipeng,CUI Zuojun,FAN Xiaolong.Width selection and engineering application of small coal pillar goaf roadway in island fully mechanized caving face of 19 m extra-thick coal seam［J］.China Mining Magazine,2023,32(2):112-119.
［7］李立,郭亚奔,刘慧妮，等.孤岛工作面沿空掘巷窄煤柱合理宽度确定［J］.中国矿业,2022,31(12):121-128，137. LI Li,GUO Yaben,LIU Huini,et al.Reasonable width of narrow coal pillar in gob-side entry driving of isolated island working face ［J］.China Mining Magazine,2022,31(12):121-128，137.
［8］赵腾飞,种阳,马国伟.特厚煤层沿空掘巷煤柱塑性区宽度研究［J］.中国矿业,2023,32(1):107-111. ZHAO Tengfei,CHONG Yang,MA Guowei.Study on the width of plastic zone of coal pillar along goaf in extra-thick coal seam ［J］.China Mining Magazine,2023,32(1):107-111.
［9］刘鹏泽,高林,许帅，等.倾斜煤层半煤岩沿空掘巷合理煤柱宽度留设研究［J］.煤炭工程,2023,55(2):12-18. LIU Pengze,GAO Lin,XU Shuai,et al.Research on reasonable coal pillar width of coal-rock gob-side entry driving in inclined coal seam ［J］.Coal Engineering,2023,55(2):12-18.
［10］姜良金,何清波,卢佳欣，等.倾斜厚煤层沿空巷道变形破坏特征及支护控制技术研究［J］.中国煤炭,2023,49(3):48-54. JIANG Liangjin,HE Qingbo,LU Jiaxin,et al.Research on the deformation and failure characteristics and support control technology of gob-side roadway in inclined and thick coal seam［J］.China Coal,2023,49(3):48-54.
［11］陈志维,张彦董.窄煤柱沿空掘巷围岩稳定协同控制技术研究与应用［J］.矿业安全与环保,2023,50(1):65-70. CHEN Zhiwei,ZHANG Yandong.Research and application of coordinated control technology for surrounding rock stability of gob-side entry driving with narrow coal pillar［J］.Mining Safety & Environmental Protection,2023,50(1):65-70.
［12］王波,谷长宛,王军，等.对穿锚索加固作用下沿空掘巷留设煤柱承压性能试验研究［J］.中国矿业大学学报,2020,49(2):262-270. WANG Bo,GU Changwan,WANG Jun，et al.Bearing capacity experimental study of coal pillar in the gob-side entry driving under the reinforcement of inflatable lock-type anchor［J］.Journal of China University of Mining & Technology,2020,49(2):262-270.
［13］尹杰.沿空掘巷煤柱宽度及注浆加固技术研究［J］.煤炭技术,2023,42(9):97-99. YIN Jie.Study on width of coal pillar and grouting reinforcement technology in gob-side entry driving ［J］.Coal Technology,2023,42(9):97-99.
［14］张京民,孟凡林.厚煤层沿空掘巷围岩稳定结构主控因素研究［J］.煤炭工程,2022,54(10):43-48. ZHANG Jingmin,MENG Fanlin.Main controlling factors of surrounding rock stability structure for gob-side entry driving in thick coal seam ［J］.Coal Engineering,2022,54(10):43-48.
［15］谷长宛,王波,王军，等.基于胀锁式对穿锚索的沿空掘巷窄煤柱双向加固机理研究［J］.煤炭科学技术,2022,50(4):106-116. GU Changwan,WANG Bo,WANG Jun,et al.Research on bidirectional-reinforcement mechanism of narrow coal pillar of gob-side entry driving based on inflatable lock-type anchor ［J］.Coal Science and Technology,2022,50(4):106-116.

相似文献/References:

备注/Memo

备注/Memo:
收稿日期： 2024-03-25；网络首发日期： 2024-08-29
* 基金项目： 国家自然科学基金项目（52174074）；河南省自然科学基金项目（222300420048）；河南省高校科技创新人才项目（23HASTIT012）
作者简介： 龚轩，本科，高级工程师，主要研究方向为矿山安全生产管理、巷道围岩控制等。
通信作者： 王猛，博士，副教授，主要研究方向为矿山岩体力学、矿压与伴生灾害协同防控、巷道围岩控制等。
更新日期/Last Update: 2024-10-08