远距离重叠煤柱作用下的强矿压显现作用机制:以大同矿区多煤层开采为例

doi:10.16265/j.cnki.issn1003-3033.2017.03.015

摘要/Abstract

摘要： 为研究大同矿区特厚煤层采出空间大和远距离侏罗系煤层群重叠煤柱共同作用下的强矿压显现机制,采用通用离散元程序(UDEC)数值模拟方法,分析重叠煤柱作用下的工作面采动应力规律。应用高精度微震监测技术,得到侏罗系煤层群开采影响下的综放工作面覆岩运动与矿压显现的关系。研究表明,工作面回采至侏罗系煤柱对应区域时,工作面超前支承压力比在非煤柱区域提高了25%～33%;侏罗系煤柱重叠区域,在“煤柱-覆岩联动”和“煤柱-采动应力耦合”共同作用下,工作面矿压显现更为强烈;在临近采空区和侏罗系覆岩共同作用下,沿空巷道矿压显现强烈。工作面开采扰动、临近采空区覆岩运动和侏罗系重叠煤柱的耦合作用,是石炭系综放工作面矿压显现剧烈的根本原因。用提出的基于地面钻孔压裂重叠煤柱弱化的强矿压显现顶板控制技术,可削弱重叠煤柱对工作面开采的影响,减轻特厚煤层综放开采采场矿压的显现强度。

关键词: 重叠煤柱; 矿压显现; 覆岩结构; 微震监测; 特厚煤层

Abstract: The paper was aimed at studying the strong strata behavior mechanism for the Datong mining area by numerical simulation and field measurement. Mining stress was analyzed by means of Universal Distinct Element Code (UDEC) numerical simulation software for the mining face under the effect of overlapping pillars. Using high-precision microseismic monitoring methods, the relationship between overburden strata movement and strata behavior was studied . The results show that mining face abutment pressure in the region Jurassic pillars correspond is higher, than that in non-coal pillar region by 25%-33%,that in the Jurassic coal pillar overlap area, the strata behavior under the coupling effect of coal pillar-overburden linkage and coal pillar-mining stress is more intense,that under the combined action of mined-out area and Jurassic overlying strata, the ground pressure of gob-side entry is strong, and that the strong strata behavior of carboniferous mechanized mining caving face is induced by coupling action of mining disturbance, abutment pressure from mined-out area and Jurassic overlapping coal pillar. A technology was developed for controlling strong strata behavior.

Key words: overlapping coal pillar, strata behavior, overlying structure, microseismic monitoring, special thick seam

中图分类号:

X936

朱志洁, 张宏伟, 陈蓥, 霍丙杰, 汤国水. 远距离重叠煤柱作用下的强矿压显现作用机制:以大同矿区多煤层开采为例[J]. 中国安全科学学报, 2017, 27(3): 83-88.

ZHU Zhijie, ZHANG Hongwei, CHEN Ying, HUO Bingjie, TANG Guoshui. Strong strata behavior mechanism under long distance overlapping coal pillar: taking multiple coal seams mining of Datong mining area as an example[J]. China Safety Science Journal, 2017, 27(3): 83-88.

参考文献

[1] 鞠金峰,许家林,朱卫兵,等. 近距离煤层工作面出倾向煤柱动载矿压机制研究[J]. 煤炭学报,2010,35(1):15-20.
JU Jinfeng,XU Jialin,ZHU Weibing,et al. Mechanism of strong strata behaviors during the working face out of the upper dip coal pillar in contiguous seams[J]. Journal of China Coal Society,2010,35(1):15-20.
[2] 屠世浩,王方田,窦凤金,等. 上层煤柱下综放沿空回采巷道矿压规律研究[J]. 中国矿业大学学报,2010,39(1):1-5.
TU Shihao,WANG Fangtian,DOU Fengjin,et al. Fully mechanized top-coal caving:underground stress at gateways under barrier pillars of an upper coal seams[J]. Journal of China University of Mining and Technology,2010,39(1):1-5.
[3] 张百胜,杨双锁,康立勋,等. 极近距离煤层回采巷道合理位置确定方法探讨[J]. 岩石力学与工程学报, 2008 ,27(1):97-101.
ZHANG Baisheng,YANG Shuangsuo,KANG Lixun,et al. Discussion on method for determining reasonable position of roadway for ultra-close multi-seam[J]. Chinese Journal of Rock Mechanics and Engineering,2008,27(1):97-101.
[4] 白庆升,屠世浩,王方田,等.浅埋近距离房式煤柱下采动应力演化及致灾机制[J].岩石力学与工程学报,2012,31(增2):3 772-3 778.
BAI Qingsheng,TU Shihao,WANG Fangtian,et al.Stress evolution and induced accidents mechanism in shallow coal seam in proximity underlying the room mining residual pillars[J].Chinese Journal of Rock Mechanics and Engineering,2012,31(S2):3 772-3 778.
[5] 陈苏社. 综采工作面过上层煤集中煤柱动载矿压控制技术[J]. 煤炭科学技术,2014,42(6):140-143.
CHEN Sushe. Dynamic mine strata pressure control technology of fully-mechanized coal mining face passing through concentrated coal pillars in above seam[J]. Coal Science and Technology,2014,42(6):140-143.
[6] 朱涛.极近距离煤层刀柱采空区下长壁开采矿山压力及其控制研究[D].太原:太原理工大学,2007.
ZHU Tao. Study on longwall mining pressure and control beneath the area mined with longwall-pillar method in ultra-close multiple-seams[D]. Taiyuan:Taiyuan University of Technology,2007.
[7] 郑百生,谢文兵,窦林名,等.不规则煤柱作用下工作面开采的三维数值模拟[J].煤炭学报,2006,31(2):137-140.
ZHENG Baisheng,XIE Wenbing,DOU Linming,et al.3D simulation on caving of face affected by irregular pillar[J].Journal of China Coal Society,2006,31(2):137-140.
[8] 王晓振,许家林,朱卫兵,等.走向煤柱对近距离煤层大采高综采面矿压影响[J].煤炭科学技术,2009,37(2): 1-4.
WANG Xiaozhen,XU Jialin,ZHU Weibing,et al. Strike coal pillar affected to strata pressure of fully mechanized longwall mining face with high cutting height in closed distance seam[J]. Coal Science and Technology,2009,37(2): 1-4.
[9] 于斌,刘长友,杨敬轩,等. 大同矿区双系煤层开采煤柱影响下的强矿压显现机理[J]. 煤炭学报,2014,39(1):40-46.
YU Bin, LIU Changyou, YANG Jingxuan, et al. Mechanism of strong pressure reveal under the influence of mining dual system of coal pillar in Datong mining area[J]. Journal of China Coal Society, 2014, 39(1):40-46.
[10] 孔令海,姜福兴,杨淑华,等.基于高精度微震监测的特厚煤层综放工作面顶板运动规律[J]. 北京科技大学学报,2010,32(5):552-558.
KONG Linghai,JIANG Fuxing,YANG Shuhua,et al. Movement of roof strata in extra thick coal seams in caving mining based on high precision micro-seismic monitoring system[J]. Journal of University of Science and Technology Beijing,2010,32(5):552-558.
[11] 赵扬锋,张超,刘力强,等. 循环载荷作用下岩石多参量特征规律研究[J]. 中国安全科学学报, 2016, 26(5): 105-111.
ZHAO Yangfeng, ZHANG Chao, LIU Liqiang, et al. Experimental research on multi-parameter rules of rock under cyclic loading[J]. China Safety Science Journal, 2016, 26(5):105-111.
[12] 陈学华,吕鹏飞,宋卫华,等. 综放开采过断层冲击地压危险分析及防治技术[J]. 中国安全科学学报, 2016, 26(5):81-87.
CHEN Xuehua, LYU Pengfei,SONG Weihua,et al. Analysis and control technology of danger of rock burst when fully mechanized caving passing through fault [J]. China Safety Science Journal,2016,26(5):81-87.
[13] 刘超,李树刚,王红胜,等. 基于ESG微震监测系统的矿井动力灾害救援试验研究[J]. 中国安全科学学报, 2013, 23(3): 125-129.
LIU Chao,LI Shugang,WANG Hongsheng, et al. Experimental study on mine dynamic disaster rescue based on ESG microseismic monitoring system[J]. China Safety Science Journal, 2013, 23(3): 125-129.

[1]	何文, 何耿烽. 基于CFD-DEM法的矿山充填料浆对管道磨损的影响[J]. 中国安全科学学报, 2026, 36(5): 113-121.
[2]	荣海, 习洲勇, 李锦程, 潘相伊, 张伟达, 韩明玉. SPDs-Conv与WIoU优化的YOLOv8n矿井井下人员检测模型[J]. 中国安全科学学报, 2026, 36(5): 139-149.
[3]	张建国, 王文唱, 任连伟, 邹友峰, 顿志林. 基于SAA-GRNN优化模型的厚松散层条件下概率积分法参数求解[J]. 中国安全科学学报, 2026, 36(5): 18-26.
[4]	秦凯, 邓志刚, 舒龙勇, 魏帅豪. 煤矿灾害监测系统数据可靠性评价[J]. 中国安全科学学报, 2026, 36(5): 190-198.
[5]	张艺波, 赵鹏翔, 李树刚, 林海飞, 孙红星, 刘元嘉. 煤层开采卸压瓦斯高位抽采孔智能设计及应用[J]. 中国安全科学学报, 2026, 36(5): 215-223.
[6]	荆德吉, 董智斌, 王德记, 李振, 刘鸿威, 鲍春花. 截齿锥角对煤岩破碎产尘特征影响的试验及模拟研究[J]. 中国安全科学学报, 2026, 36(5): 64-72.
[7]	盛武, 储小渝, 吴敏玮. 基于BO-XGBoost-SHAP架构的矿井主提升机故障诊断模型[J]. 中国安全科学学报, 2026, 36(5): 89-97.
[8]	吕鹏飞, 王永亮, 梁野, 祁云, 耿伊健, 孙宇霆. 倾斜厚煤层冲击危险与双巷内错布置防冲优化研究[J]. 中国安全科学学报, 2026, 36(4): 132-141.
[9]	滕弋非, 赫梓岐, 付钰, 全明旭, 刘唱, 崔政. 负载型钴铜催化剂催化CO消除性能机制[J]. 中国安全科学学报, 2026, 36(4): 152-159.
[10]	梁冰, 张世垚, 孙维吉, 张肖洋, 聂涛. 不同层理煤CO₂驱替CH₄及封存效果分析[J]. 中国安全科学学报, 2026, 36(4): 65-74.
[11]	王立川, 肖红武, 安丰华, 刘延龙, 王兆丰, 周宗青. 非稳定含煤地层隧道施工中瓦斯异常涌出防控技术[J]. 中国安全科学学报, 2026, 36(4): 85-93.
[12]	张杰, 杨科, 范超尘. 基于MTAM-LSTM的采煤工作面支架载荷预测方法[J]. 中国安全科学学报, 2026, 36(3): 144-152.
[13]	张笑盈, 林海飞, 严敏, 王瑞哲, 仇悦, 周行. 超声波对煤中瓦斯放散动力学影响的试验研究[J]. 中国安全科学学报, 2026, 36(3): 153-161.
[14]	谢尊贤, 马浩浩, 江松, 武潇云. 基于GA-BP神经网络的露天矿山排土场边坡失稳预测[J]. 中国安全科学学报, 2026, 36(3): 81-88.
[15]	赵博. 采空区路堤边坡滑塌的风险评估模型[J]. 中国安全科学学报, 2026, 36(2): 121-126.