|本期目录/Table of Contents|

[1]马海峰,程志恒,刘伟.近距离煤层群叠加开采采动应力与覆岩位移场演化特征[J].中国安全生产科学技术,2017,13(5):28-33.[doi:10.11731/j.issn.1673-193x.2017.05.005]
　MA Haifeng,CHENG Zhiheng,LIU Wei.Evolution characteristics of mining stress and overlying strata displacement field under superimposed mining in close distance coal seam group[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2017,13(5):28-33.[doi:10.11731/j.issn.1673-193x.2017.05.005]
点击复制

近距离煤层群叠加开采采动应力与覆岩位移场演化特征
分享到：

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

卷:
13
期数:
2017年5期
页码:
28-33
栏目:
学术论著
出版日期:
2017-05-31

文章信息/Info

Title:
Evolution characteristics of mining stress and overlying strata displacement field under superimposed mining in close distance coal seam group
文章编号:
1673-193X(2017)-05-0028-06
作者:
马海峰1; 程志恒2; 刘伟3
1. 安徽理工大学 能源与安全学院，安徽 淮南 232001；2. 煤炭科学技术研究院有限公司 安全分院，北京 100013； 3. 淮南矿业集团有限责任公司，安徽 淮南 232001
Author(s):
MA Haifeng1;  CHENG Zhiheng2;  LIU Wei3
1. Faculty of Energy and Safety Engineering, Anhui University of Science and Technology, Huainan Anhui 232001, China; 2. Mine Safety Technology Branch of China Coal Research Institute, Beijing 100013, China; 3. Huainan Mining Group Co., Ltd., Huainan Anhui 232001, China
关键词:
近距离煤层群; 叠加效应; 覆岩位移场; 采动应力
Keywords:
close distance coal seam group;  superposition effect;  overlying strata displacement field;  mining stress
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2017.05.005
文献标志码:
A
摘要:
为获得近距离煤层群叠加开采条件下采动应力与覆岩位移场的演化特征，以潘二矿近距离煤层6，7煤层地质条件为背景，采用相似模拟与工程实践相结合的方法进行了研究。结果表明：近距离煤层群叠加开采形成的覆岩宏观运移形态和特征与单一煤层开采相似，叠加开采时，覆岩呈多岩层整体协调运移的规律，具有位移叠加增长效应；7煤层的开采使覆岩起到一定的垫层作用，缓和了矿山压力，使近距离煤层叠加开采时具有应力减弱效应；与开采7煤层相比，6煤层开采过程中，周期来压步距减小，来压时支架载荷减弱，动压系数相应减小，但周期来压时，存在部分岩层发生台阶式下沉的现象。基于近距离煤层群叠加开采研究结果，在近距离煤层群开采的设备选型时，选用了高额定工作阻力的液压支架，在周期来压期间，采取了一定的辅助措施，同时加强了组织管理，生产中没有发生冲击液压支架及其他动力灾害的现象。
Abstract:
In order to obtain the evolution characteristics of mining stress and overlying strata displacement field under the superimposed mining in close distance coal seam group, the study was carried out by using the combined methods of similar simulation and engineering practice based on the background of geological conditions at No. 6 and 7 coal seams in Pan'er coal mine. The results showed that the macro migration form and characteristics of overlying strata produced by the superimposed mining in close distance coal seams were similar to that of single coal seam, and the overlying strata under superimposed mining presented the law of overall coordination migration for multiple strata, with a displacement superposition growth effect. The overlying strata played a certain cushion effect due to the mining of No.7 coal seam, which mitigated the mine pressure, and caused the stress weakening effect under the superimposed mining in close distance coal seam group. The periodic weighting interval reduced, the support load when weighting weakened, and the dynamic pressure coefficient reduced accordingly in the mining process of No.6 coal seam compared with No.7 coal seam, but there was a phenomenon that the stepped sinking occurred in partial strata during the periodic weighting. The hydraulic supports with high rated working resistance were selected in the equipment type selection based on the results of superimposed mining in close distance coal seam group. Because of taking a certain auxiliary measures and strengthening the organization and management at the same time during the periodic weighting, there were no phenomena of impacting the hydraulic supports and other dynamic disasters in the production.

参考文献/References:

［1］李树清，何学秋，李绍泉，等. 煤层群双重卸压开采覆岩移动及裂隙动态演化的实验研究［J］. 煤炭学报，2013，38(12): 2146-2152. LI Shuqing, HE Xueqiu, LI Shaoquan, et al. Experimental research on strata movement and fracture dynamic evolution of double pressure-relief mining in coal seams group ［J］. Journal of China Coal Society, 2013, 38(12): 2146-2152.
［2］屠世浩，窦凤金，万志军，等. 浅埋房柱式采空区下近距离煤层综采顶板控制技术［J］. 煤炭学报，2011，36(3): 366-370. TU Shihao, DOU Fengjin, WANZhijun, et al. Strata control technology of the fully mechanized face in shallow coal seam close to the above room-and-pillar gob ［J］. Journal of China Coal Society, 2011, 36(3): 366-370.
［3］张勇，张春雷，赵甫. 近距离煤层群开采底板不同分区采动裂隙动态演化规律［J］. 煤炭学报，2015，40(4): 786-792. ZHANG Yong, ZHANG Chunlei, ZHAO Fu. Dynamic evolution rules of mining-induced fractures in different floor area of short-distance coal seams ［J］. Journal of China Coal Society, 2015, 40(4): 786-792.
［4］闫书缘，杨科，廖斌琛，等. 潘二矿下向卸压开采高应力演化特征试验研究［J］. 岩土力学，2013，34(9): 2551-2556. YAN Shuyuan, YANG Ke, LIAO Binchen, et al. Experimental study of high mining-inducedstress evolution characteristics of downward relieving mining in Paner coal mine ［J］. Rock and Soil Mechanics, 2013, 34(9): 2551-2556.
［5］许磊，魏海霞，肖祯雁，等. 煤柱下底板偏应力区域特征及案例［J］. 岩土力学，2015，36(2): 561-568. XU Lei, WEI Haixia, XIAO Zhenyan, et al. Engineering cases and characteristics of deviatoric stress under coal pillar in regional floor ［J］. Rock and Soil Mechanics, 2015, 36(2): 561-568.
［6］Yan Hong, Weng Mingyue, Feng Ruimin, et al. Layout and support design of a coal roadway in ultra-close multiple-seams ［J］. Journal of Central South University, 2015, 22(11): 4385-4395.
［7］程志恒，齐庆新，李宏艳，等. 近距离煤层群叠加开采采动应力-裂隙动态演化特征实验研究［J］. 煤炭学报，2016，41(2): 367-375. CHENG Zhiheng, QI Qingxin, LI Hongyan, et al. Evolution of the superimposed mining induced stress-fissure field under extracting of close distance coal seam group ［J］. Journal of China Coal Society, 2016, 41(2): 367-375.
［8］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（S2）:3772-3778. 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）:3772-3778.
［9］张向阳，常聚才. 上下采空极近距离煤层开采围岩应力及破坏特征研究［J］. 采矿与安全工程学报，2014，31(4): 506-511. ZHANG Xiangyang, CHANG Jucai. Stress and failure characteristics of surrounding rock in the extremely close distance coal seams group mining after the upper and lower coal seam mining ［J］. Journal of Mining & Safety Engineering, 2014, 31(4): 506-511.
［10］马振乾，姜耀东，杨英明，等. 芦岭矿近距离煤层重复开采下底板巷道稳定性研究［J］. 岩石力学与工程学报，2015，34(S1):3320-3327. MA Zhenqian, JIANG Yaodong, YAGN Yingming, et al. Floor roadway stability in repeated mining of close distance coal seams in luling coal mine ［J］. Chinese Journal of Rock Mechanics and Engineering,2015, 34(S1):3320-3327.
［11］张炜，张东升，陈建本，等. 极近距离煤层回采巷道合理位置确定［J］. 中国矿业大学学报，2012，41(2): 182-188. ZHANG Wei, ZHANG Dongsheng, CHEN Jianben, et al. Determining the optimum gateway location for extremely close coal seams ［J］. Journal of China University of Mining & Technology, 2012, 41(2): 182-188.
［12］杨伟，刘长友，黄炳香，等. 近距离煤层联合开采条件下工作面合理错距确定［J］. 采矿与安全工程学报，2012，29(1): 101-105. YANG Wei, LIU Changyou, HUANG Bingxiang, et al. Determination on reasonable malposition of combined mining in close-distance coal seams ［J］. Journal of Mining & Safety Engineering, 2012, 29(1): 101-105.

相似文献/References:

[1]张少帅,杨胜强,鹿存荣.基于瓦斯涌出量预测的近距离煤层群开采顺序优化选择[J].中国安全生产科学技术,2011,7(9):60.
　ZHANG Shao-shuai,YANG Sheng-qiang,LU Cun-rong.Optimization of mining sequence at closed distance seam group based on the gas emission prediction[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2011,7(5):60.
[2]张勋,邓存宝,王继仁,等.纵深大区域煤层群开采覆岩活动规律相似模拟[J].中国安全生产科学技术,2015,11(6):5.[doi:10.11731/j.issn.1673-193x.2015.06.001]
　ZHANG Xun,DENG Cun-bao,WANG Ji-ren,et al.Physical analogous simulation on activity law of overlying strata for the depth and large area coal seam group mining[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2015,11(5):5.[doi:10.11731/j.issn.1673-193x.2015.06.001]
[3]苏伟伟,王兆丰,陈向军.近距离煤层群倾向穿层钻孔合理布孔参数研究[J].中国安全生产科学技术,2015,11(7):56.[doi:10.11731/j.issn.1673-193x.2015.07.009]
　SU Wei-wei,WANG Zhang-feng,CHEN Xiang-jun.Study on reasonable hole arrangement parameters of inclining layer-through borehole in close distance coal seam group[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2015,11(5):56.[doi:10.11731/j.issn.1673-193x.2015.07.009]

备注/Memo

备注/Memo:
国家自然科学基金项目(51504005，51604154)；安徽省高校自然科学研究重点项目(KJ2017A093)
更新日期/Last Update: 2017-06-09