深浅孔联合爆破切顶留巷围岩控制技术及应用

doi:10.16265/j.cnki.issn1003-3033.2022.12.1877

中国安全科学学报 ›› 2022, Vol. 32 ›› Issue (12): 70-78.doi: 10.16265/j.cnki.issn1003-3033.2022.12.1877

深浅孔联合爆破切顶留巷围岩控制技术及应用

侯俊领¹(), 赵能²^,^**(), 李俊斌³, 董现忠³, 余忠林⁴, 范同清³

¹ 攀枝花学院钒钛学院,四川攀枝花 617000
² 安徽理工大学土木建筑学院,安徽淮南 232000
³ 淮南矿业(集团)有限责任公司,安徽淮南 232000
⁴ 安徽理工大学矿业工程学院,安徽淮南 232000

收稿日期:2022-07-20 修回日期:2022-10-12 出版日期:2022-12-28 发布日期:2023-06-28
通讯作者: 赵能
作者简介:
侯俊领 (1979—),男,江苏徐州人,博士,教授,主要从事综采工作面安全高效生产技术研究。E-mail:13956408171@139.com。
基金资助:
四川省科技计划项目(重点研发项目)(2020YFS0512); 深部煤矿采动响应与灾害防控国家重点实验室开放基金资助(SKLMRDPC19KF0)

Control technology and application of surrounding rock of deep and shallow hole combined blasting roof-cutting retaining roadway

HOU Junling¹(), ZHAO Neng²^,^**(), LI Junbin³, DONG Xianzhong³, YU Zhonglin⁴, FAN Tongqing³

¹ Vanadium and Titanium Institute, Panzhihua University, Panzhihua Sichuan 617000, China
² School of Civil Architecture, Anhui University of Technology, Huainan Anhui 232000, China
³ Huainan Mining (Group) Co., Ltd., Huainan Anhui 232000, China
⁴ School of Mining Engineering, Anhui University of Technology, Huainan Anhui 232000, China

Received:2022-07-20 Revised:2022-10-12 Online:2022-12-28 Published:2023-06-28
Contact: ZHAO Neng

摘要/Abstract

摘要：

为解决淮南矿区深井砂岩直覆工作面切顶留巷后的围岩稳定性问题,首先,分析深浅孔联合爆破切顶留巷技术原理,采用深孔预裂爆破技术使基本顶断裂并垮落,同时采用聚能爆破技术对直接顶进行定向切割;然后,根据理论分析确定深浅孔联合爆破方案,并通过数值模拟方法分析未切顶、切直接顶及深浅孔联合爆破3种不同切顶工作面的应力分布特征;最后,在丁集矿1452(1)砂岩直覆工作面进行现场工业性试验。研究表明:深浅孔联合爆破切顶留巷围岩控制技术可以更好地阻断覆岩之间的应力传递,改善留巷顶板应力环境;在工作面推进方向,减小周期来压步距,来压强度平缓,在留巷巷道中,减小留巷上方悬顶长度,形成短壁梁,有效地降低了留巷围岩的应力,较好地控制了围岩变形。

关键词: 深浅孔, 联合爆破, 切顶留巷, 围岩稳定性, 控制技术

Abstract:

In order to solve the stability problem of surrounding rock after roof cutting and retaining roadway in deep sandstone direct-covered working face of Huainan mining area, the technical principle of deep and shallow hole combined blasting roof cutting and retaining roadway was firstly analyzed. The deep hole pre-splitting blasting technology was used to make the main roof break and collapse, and the energy-gathering blasting technology was used to directionally cut the direct roof. Then, according to the theoretical analysis, the scheme of deep and shallow hole combined blasting was determined, and the stress distribution characteristics of three different roof cutting working faces of uncut roof, cut direct roof and deep and shallow hole combined blasting were analyzed by numerical simulation method. Finally, the field study was carried out in 1452 (1) sandstone working face of Dingji mine. The research shows that the surrounding rock control technology of deep-shallow hole combined blasting roof cutting entry retaining can better block the stress transfer between overburden strata and improve the stress environment of entry retaining roof. In the advancing direction of the working face, the periodic weighting step is reduced, and the weighting strength is gentle. In the retaining roadway, the length of the hanging roof above the retaining roadway is reduced to form a short wall beam, which effectively reduces the stress of the surrounding rock of the retaining roadway and better controls the deformation of the surrounding rock.

Key words: deep shallow hole, combined blasting, roof cutting retaining roadway, stability of surrounding rock, control technology

侯俊领, 赵能, 李俊斌, 董现忠, 余忠林, 范同清. 深浅孔联合爆破切顶留巷围岩控制技术及应用[J]. 中国安全科学学报, 2022, 32(12): 70-78.

HOU Junling, ZHAO Neng, LI Junbin, DONG Xianzhong, YU Zhonglin, FAN Tongqing. Control technology and application of surrounding rock of deep and shallow hole combined blasting roof-cutting retaining roadway[J]. China Safety Science Journal, 2022, 32(12): 70-78.

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参考文献 15

[1]	谢和平, 高峰, 鞠杨, 等. 深部开采的定量界定与分析[J]. 煤炭学报, 2015, 40(1):1-10.
	XIE Heping, GAO Feng, JU Yang, et al. Quantitative definition and investigation of deep mining[J]. Journal of China Coal Society, 2015, 40 (1):1-10.
[2]	康红普. 我国煤矿巷道锚杆支护技术发展60年及展望[J]. 中国矿业大学学报, 2016, 45(6):1071-1081.
	KANG Hongpu. Sixty years development and prospects of rock bolting technology for underground coal mine roadways in China[J]. Journal of China University of Mining & Technology, 2016, 45 (6):1071-1081.
[3]	康红普. 我国煤矿巷道围岩控制技术发展70年及展望[J]. 岩石力学与工程学报, 2021, 40(1):1-30.
	KANG Hongpu. Seventy years development and prospects of strata control technology for coal mine roadway in China[J]. Chinese Journal of Rock Mechanics and Engineering, 2021, 40 (1):1-30.
[4]	李迎富, 华心祝. 沿空留巷上覆岩层关键块稳定性力学分析及巷旁充填体宽度确定[J]. 岩土力学, 2012, 33(4):1134-1140.
	LI Yingfu, HUA Xinzhu. Mechanical analysis of stability of key blocks in overlying strata of gob-side entry retaining and calculating width of roadside backfill[J]. Rock and Soil Mechanics, 2012, 33 (4):1134-1140.
[5]	何满潮, 王亚军, 杨军, 等. 切顶卸压无煤柱自成巷开采与常规开采应力场分布特征对比分析[J]. 煤炭学报, 2018, 43(3):626-637.
	HE Manchao, WANG Yajun, YANG Jun, et al. Comparative analysis on stress field distributions in roof cutting non-pillar mining method and conventional mining method[J]. Journal of China Coal Society, 2018, 43 (3):626-637.
[6]	何满潮, 高玉兵, 杨军, 等. 无煤柱自成巷聚能切缝技术及其对围岩应力演化的影响研究[J]. 岩石力学与工程学报, 2017, 36(6):1314-1325.
	HE Manchao, GAO Yubing, YANG Jun, et al. An energy-gathered roof cutting technique in no-pillar mining and its impact on stress variation in surrounding rocks[J]. Chinese Journal of Rock Mechanics and Engineering, 2017, 36 (6):1314-1325.
[7]	华心祝, 杨明, 刘钦节, 等. 深井沿空留巷底鼓演化机理模型试验研究[J]. 采矿与安全工程学报, 2018, 35(1):1-9.
	HUA Xinzhu, YANG Ming, LIU Qinjie, et al. Model test on evolution mechanism of floor heave in gob-side retaining entry of deep mine[J]. Journal of Mining & Safety Engineering, 2018, 35 (1):1-9.
[8]	HAN Changliang, ZHANG Nong, RAN Zhi, et al. Superposed disturbance mechanism of sequential overlying strata collapse for gob-side entry retaining and corresponding control strategies[J]. Journal of Central South University, 2018, 25 (9):2258-2271. doi: 10.1007/s11771-018-3911-8
[9]	贺艳军, 宋亚新, 石占山, 等. 预掘回撤通道末采围岩破坏机制研究[J]. 中国安全科学学报, 2022, 32(2):158-166. doi: 10.16265/j.cnki.issn1003-3033.2022.02.022
	HE Yanjun, SONG Yaxin, SHI Zhanshan, et al. Study on failure mechanism of withdrawal channel's surrounding rock during last mining period[J]. China Safety Science Journal, 2022, 32 (2):158-166. doi: 10.16265/j.cnki.issn1003-3033.2022.02.022
[10]	CHEN Baobao, LIU Changyou, WANG Bing. A case study of the periodic fracture control of a thick-hard roof based on deep-hole pre-splitting blasting[J]. Energy Exploration & Exploitation, 2022, 40(1):279-301.
[11]	代树红, 李硕, 张寅, 等. 倾斜煤层断顶卸压模型试验研究[J]. 中国安全科学学报, 2019, 29(3):102-107. doi: 10.16265/j.cnki.issn1003-3033.2019.03.017
	DAI Shuhong, LI Shuo, ZHANG Yin, et al. Modeling test based study on roof cutting for pressure unloading in inclined coal seam[J]. China Safety Science Journal, 2019, 29 (3):102-107. doi: 10.16265/j.cnki.issn1003-3033.2019.03.017
[12]	李金华, 陈文晓, 苏培莉, 等. 深孔预裂强制放顶断裂力学模型研究[J]. 煤田地质与勘探, 2020, 48(6):217-223.
	LI Jinhua, CHEN Wenxiao, SU Peili, et al. Research on fracture mechanics model of deep hole pre-splitting for forced caving[J]. Coal Geology & Exploration, 2020, 48 (6):217-223.
[13]	钱鸣高, 刘听成. 矿山压力及其控制[M]. 北京: 煤炭工业出版社, 1984:84-86.
[14]	郭志飚, 王将, 曹天培, 等. 薄煤层切顶卸压自动成巷关键参数研究[J]. 中国矿业大学学报, 2016, 45(5):879-885.
	GUO Zhibiao, WANG Jiang, CAO Tianpei, et al. Research on key parameters of gob-side entry retaining automatically formed by roof cutting and pressure release in thin coal seam mining[J]. Journal of China University of Mining & Technology, 2016, 45 (5):879-885.
[15]	贾虎, 徐颖. 岩体开挖爆炸应力损伤范围研究[J]. 岩石力学与工程学报, 2007, 26(增1):3489-3492.
	JIA Hu, XU Ying. Study on stress damage zone in excavation of rock mass[J]. Chinese Journal of Rock Mechanics and Engineering, 2007, 26(S1):3489-3492.

炮孔类型	孔深/m	仰角/(°)	与巷道夹角/(°)	孔径/mm	装药量/kg	封孔长度/m	炮孔间距/m
深孔	42	75	90	94	90	15	5
浅孔	13.5	75	90	50	7.59	3	0.5

工作面	轨道巷道侧煤层
工作面	最大主应力峰值	中间主应力峰值	最小主应力峰值
未切顶	-21.7	-10.5	-10.3
切直接顶	-20.3	-9.6	-8.8
深浅孔联合爆破切顶	-16.4	-7.6	-5.8

深浅孔联合爆破切顶留巷围岩控制技术及应用

Control technology and application of surrounding rock of deep and shallow hole combined blasting roof-cutting retaining roadway

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