| Citation: |
REN Xingyun，HAO Bingyuan，HE Fushuai，et al. Research on staggered distance of upper and lower coal seam cooperative mining face based on subsidence prediction[J]. Coal Science and Technology，2022，50（12）：102−108. DOI: 10.13199/j.cnki.cst.2021-0403
|
In order to study the safe staggered distance of the same mining face of the upper and lower coal seams, which does not belong to the category of contugous coal seams, taking the collaborative mining face of Yitian Coal Industry No. 2 Coal Seam (overlying coal seam) and No. 11 Coal Seam (underlying coal seam) of Lu'an Group as the engineering background, based on the roof collapse characteristics of the underlying coal seam stope and the theoretical analysis results of “three vertical zones”, the scientific problem to be solved under the condition of downward cooperative mining is that the mining activities of the underlying coal seam can not affect the safety production of the overlying coal seam. A probability-integrated mining subsidence prediction model was established to explore the influence range of mining in the underlying No. 11 coal seam working face on the subsidence of the overlying No. 2 coal seam floor under full mining conditions. The subsidence of 10 mm, inclination of 3 mm/m, curvature of 0.08×10−3 /m and horizontal deformation of 2 mm/m were taken as the safety impact threshold of the mining of the underlying coal seam on the overlying coal seam. The criterion is that the working face of the overlying coal seam is located outside the mining subsidence range of the working face of the lower coal seam. Considering the safety factor of 1.5 times, it is concluded that the reasonable strike dislocation distance of upper and lower coal seams is 96.2 m, the ground pressure appearance of the overlying 2# coal seam working face and its mining roadway is monitored, and the ground pressure law is compared and analyzed with that of single layer mining under the same conditions. Engineering practice shows that during the coordinated mining process of No. 2 coal seam and No. 11 coal seam, based on the mining subsidence range caused by the full mining conditions of the No. 11 coal seam, the determined staggered distance of the same mining face in the upper and lower coal seams is reasonable and reliable. The overlying No. 2 coal seam working face has not been affected by the mining subsidence of the lower No.11 coal seam, which can achieve safe collaborative production.
| [1] |
张春雷. 近距离煤层群上行开采覆岩垮落及运移规律研究[J]. 煤炭科学技术,2018,46(8):1−7. doi: 10.13199/j.cnki.cst.2018.08.001
ZHANG Chunlei. Study on overlying strata caving and movement regularity of ascending mining in contiguous seams[J]. Coal Science and Technology,2018,46(8):1−7. doi: 10.13199/j.cnki.cst.2018.08.001
|
| [2] |
杜君武,黄庆享. 浅埋煤层群同采工作面合理走向错距研究[J]. 煤炭科学技术,2017,45(9):122−127. doi: 10.13199/j.cnki.cst.2017.09.020
DU Junwu,HUANG Qingxiang. Research on reasonable staggered distance along strike of simutaneous mining faces in shallow seams[J]. Coal Science and Technology,2017,45(9):122−127. doi: 10.13199/j.cnki.cst.2017.09.020
|
| [3] |
黄庆享,贺雁鹏,周海丰. 榆家梁煤矿多煤层开采矿压显现规律研究[J]. 西安科技大学学报,2017,37(1):21−25. doi: 10.13800/j.cnki.xakjdxxb.2017.0104
HUANG Qingxiang,HE Yanpeng,ZHOU Haifeng. Roof pressure of multiple coal seams mining in Yujialiang mines[J]. Journal of Xi, an University of Science and Technology,2017,37(1):21−25. doi: 10.13800/j.cnki.xakjdxxb.2017.0104
|
| [4] |
马海峰,殷志强,李传明,等. 邻近层同采工作面动压巷道失稳机理及错距优化研究[J]. 采矿与安全工程学报,2016,33(2):278−283.
MA Haifeng,YIN Zhiqiang,LI Chuangming,et al. Instability mechanism of dynamic pressure roadway and staggered distance optimization in nearby-layer simultaneous working faces[J]. Journal of Mining & Safety Engineering,2016,33(2):278−283.
|
| [5] |
彭高友,高明忠,吕有厂,等. 深部近距离煤层群采动力学行为探索[J]. 煤炭学报,2019,44(7):1971−1980.
PENG Gaoyou,GAO Mingzhong,LYU Youchang,et al. Investigation on mining mechanics behavior of deep close distance seam group[J]. Journal of China Coal Society,2019,44(7):1971−1980.
|
| [6] |
杨 伟, 刘长友, 杨 宇. 层间应力影响下近距离煤层工作面合理错距留设问题研究[J]. 岩石力学与工程学报, 2012, 31(S1): 2965-2972.
YANG Wei, LIU Changyou, YANG Yu. Reasonable malposition setting in close distance coal seams under influence of interlaminar stresses [J]. Chinese Journal of Rock Mechanics and Engineering. 2012, 31(S1): 2965-2972.
|
| [7] |
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.
|
| [8] |
金珠鹏. 沙坪矿近距离煤层开采覆岩运动规律及围岩变形机理研究[D]. 北京: 中国矿业大学(北京), 2018.
JIN Zhupeng. Study on overburden strata movement law and deformation mechanism of surrounding rock in short distance coal seam mining in Shaping Coal Mine[D]. Beijing : China University of Mining & Technology-Beijing, 2018.
|
| [9] |
胡海峰. 不同土岩比复合介质地表沉陷规律及预测研究[D]. 太原: 太原理工大学, 2012.
HU Haifeng. Research on surface subsidence regularity and prediction under composite mediums with different thickness rations of loose and bedrock[D]. Taiyuan : Taiyuan University of Technology, 2012.
|
| [10] |
李树清,龙祖根,罗卫东,等. 煤层群下保护层开采保护范围的数值模拟[J]. 中国安全科学学报,2012,22(6):34−40.
LI Shuqing,LONG Zugen,LUO Weidong,et al. Numerical simulation of protection scope when lower-protective layer mined in coal seams[J]. China Safety Science Journal,2012,22(6):34−40.
|
| [11] |
梁 冰,石占山,姜福利,等. 远距离薄煤上保护层开采方案保护有效性论证[J]. 中国安全科学学报,2015,25(4):17−22.
LIANG Bing,SHI Zhanshan,JIANG Fuli,et al. Research on protection result of extra-thin protective coal seam mining[J]. China Safety Science Journal,2015,25(4):17−22.
|
| [12] |
钱鸣高, 石平五, 许家林. 矿山压力与岩层控制[M]. 徐州: 中国矿业大学出版社, 2011.
QIAN Minggao, SHI Pingwu, XU Jialin. Mining pressure and strata control[M]. Xuzhou: China University of Mining and Technology Press, 2011.
|
| [13] |
韩丹丹,胡胜勇,张 奡,等. 采空区垮落岩体空隙率分布规律及其形成机理研究[J]. 煤炭科学技术,2020,48(11):113−120. doi: 10.13199/j.cnki.cst.2020.11.014
HAN Dandan,HU Shengyong,ZHANG Ao,et al. Study on voidage distribution regulation and formation mechanism of crushed rock mass in gob[J]. Coal Science and Technology,2020,48(11):113−120. doi: 10.13199/j.cnki.cst.2020.11.014
|
| [14] |
刘玉成, 戴华阳. 近水平煤层开采沉陷预计的双曲线剖面函数法[J]. 中国矿业大学学报, 2019, 48(3): 676-681.
LIU Yucheng, DAI Huayang. Hyperbolic function model for predicting the main section surface deformation curve due to approximate horizontal coal seam underground longwall mining[J]. Journal of China University of Mining & Technology. 2019, 48(3): 676-681.
|
| [15] |
建筑物、水体、铁路及主要井巷煤柱留设与压煤开采指南[M]. 北京: 煤炭工业出版社, 2017.
Guide for the retention and compression of coal pillars for buildings, water bodies, railways, and main roadways[M]. Beijing: China Coal Industry Press, 2017.
|
| [16] |
胡炳南, 张华兴, 申宝宏. 建筑物、水体、铁路及主要井巷煤柱留设与压煤开采规范[M]. 北京: 煤炭工业出版社, 2017.
HU Bingnan, ZHANG Huaxing, SHEN Baohong. Code for coal pillar retaining and coal mining in buildings, water bodies, railways and main roadways [M]. Beijing: China Coal Industry Press, 2017.
|
| [17] |
柴 敬,杨玉玉,欧阳一博,等. 采场覆岩变形破坏模拟试验的光测方法对比[J]. 煤炭学报,2021,46(1):154−163. doi: 10.13225/j.cnki.jccs.2020.0141
CHAI Jing,YANG Yuyu,OUYANG Yibo,et al. Comparison of optical measurement methods for deformation and failure simulation test of overburden in working face[J]. Journal of China Coal Society,2021,46(1):154−163. doi: 10.13225/j.cnki.jccs.2020.0141
|
| [18] |
戴文祥,潘卫东,李 猛,等. 近距离煤层强扰动巷道布置与支护技术研究[J]. 煤炭科学技术,2020,48(12):61−67. doi: 10.13199/j.cnki.cst.2020.12.006
DAI Wenxiang,PAN Weidong,LI Meng,et al. Study on layout and support technology of strongly disturbed roadway in contiguous coal seam[J]. Coal Science and Technology,2020,48(12):61−67. doi: 10.13199/j.cnki.cst.2020.12.006
|
| [19] |
张平松,许时昂,郭立全,等. 采场围岩变形与破坏监测技术研究进展及展望[J]. 煤炭科学技术,2020,48(3):14−35. doi: 10.13199/j.cnki.cst.2020.03.002
ZHANG Pingsong,XU Shiang,GUO Liquan,et al. Prospect and progress of deformation and failure monitoring technology of surrounding rock in stope[J]. Coal Science and Technology,2020,48(3):14−35. doi: 10.13199/j.cnki.cst.2020.03.002
|
| [20] |
杨仁树,朱 晔,李永亮,等. 采动影响巷道弱胶结层状底板稳定性分析与控制对策[J]. 煤炭学报,2020,45(7):2667−2680. doi: 10.13225/j.cnki.jccs.2020.0123
YANG Renshu,ZHU Ye,LI Yongliang,et al. Stability analysis and control strategy of weakly cemented layered floor in minim affected roadway[J]. Journal of China Coal Society,2020,45(7):2667−2680. doi: 10.13225/j.cnki.jccs.2020.0123
|
| 1. |
宋高峰，黄鹏，昝明惠，张鹏飞，孔德中. 近距离煤层群同采工作面合理错距确定及覆岩破坏特征研究. 煤炭工程. 2024(06): 1-7 .
| |
| 2. |
李健光，张翰文，冯川川. 近距离煤层群同采工作面合理错距研究及应用. 晋控科学技术. 2024(06): 12-15 .
| |
| 3. |
李胜利. 基于稳压区理论近距离上下煤层协同开采错距研究. 煤炭科学技术. 2022(S2): 44-49 .
本站查看
|
Supported by: Beijing Renhe Information Technology Co., Ltd. 
DownLoad: