基于基本顶断裂位置的综放窄煤柱煤巷非对称支护技术研究

doi:10.13722/j.cnki.jrme.2015.0479

摘要
图/表
参考文献(14)
相关文章 (15)

全文: PDF (5725 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要针对王家岭煤矿20103综放窄煤柱煤巷顶板支护过程中出现的非对称大变形控制难题，采用钻孔窥视法对基本顶断裂位置和顶板双向移动特征进行现场实测，结合顶板煤体微裂隙非对称演化过程的CT识别，提出槽钢简式桁架锚索与单体锚索平行布置非对称支护技术，并对其组成结构和控制机制进行系统研究。得出：(1) 距20103掘进工作面100～300 m长度区间，基本顶在窄煤柱上方距巷道横截面铅垂中心轴2.918 m位置断裂；(2) 基本顶断裂后回转下沉引起巷道顶板发生两次离层和水平错动：一次离层和水平错动导致煤柱侧顶板沿巷道长度方向区域性断裂，二次离层和水平错动诱发煤柱侧顶板局部冒漏；(3) 窄煤柱煤巷顶板煤体微裂隙演化过程具有明显的不对称性：水平错动带煤体微裂隙数量、发育速度和贯通速度大于扰动稳定带煤体微裂隙数量、发育速度和贯通速度；(4) 槽钢简式桁架锚索和单体锚索平行布置非对称支护机制：重点突出、刚柔并济、点线结合、均衡承载。20103窄煤柱煤巷采用槽钢简式桁架锚索和单体锚索平行布置非对称支护技术，煤柱侧顶板和回采侧顶板变形协调一致，围岩控制效果良好，研究成果对类似工程条件的巷道支护具有一定的理论意义和实用价值。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	殷帅峰1
	程根银1
	何富连2
	谢福星2
	单耀1

关键词 ：采矿工程, 窄煤柱煤巷, 钻孔窥视, CT识别, 槽钢桁架, 非对称支护

Abstract：The support for the fully-mechanized coal roadway nearby narrow pillar in the mining face 20103 of the Wangjialing coal mine suffered large asymmetric deformation. In order to solve this problem，a technique was proposed. In the first step，the fracture position of the basic roof and two-way movement behavior was investigated using the method of borehole observation，then combing the CT scan technology for the asymmetric evolution process of coal roof microcracks，an asymmetric support technology using both parallel-arranged composed of channel steel truss cable and single cable was designed. Its composition structure and controlling mechanism were then researched in detail. The following results were obtained：(1) Away from the tunneling face 20103 100–300 m，fracture took place at the top of the narrow pillar，apart from the central plane of the roadway 2.918 m；(2) Roof delamination and horizontal dislocation have occurred twice in coal roof caused by the rotation and descending of basic roof: the first delamination led to a regional scale faults in the roof near the pillar side and parallel to the entry direction；the second delamination led to some site scale roof falls near the pillar side；(3) Microcracks development on either side of the entry roof were asymmetric: the amount，developing speed and faults formation interval were discrepant between the horizontal dislocation zone and the stable zone；(4) The feature of the asymmetric support method using parallel-arranged composed of channel steel truss cable and single cable include: weak sites extra-strengthened，tuned by weaker support at relative strong sites，line shape supports accompanied by point supports，and the load on every supports were balanced. This method has been successfully implemented in the working face 20103，deformation on the roof at pillar side and coal rib side were adjusted to synchronous，the host rock was very effectively controlled. The result and experience are very useful to similar engineering conditions theoretically and practically.

Key words： mining engineering coal roadway nearby narrow pillar borehole observation method CT scan channel steel truss asymmetric support

引用本文:

殷帅峰1，程根银1，何富连2，谢福星2，单耀1. 基于基本顶断裂位置的综放窄煤柱煤巷非对称支护技术研究[J]. 岩石力学与工程学报, 2016, 35(S1): 3162-3174.
YIN Shuaifeng1，CHENG Genyin1，HE Fulian2，XIE Fuxing2，SHAN Yao1. An asymmetric support technique for fully-mechanized coal roadway nearby narrow pillar based on the fracture position analysis in basic roof. , 2016, 35(S1): 3162-3174.

链接本文:

https://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2015.0479 或 https://rockmech.whrsm.ac.cn/CN/Y2016/V35/IS1/3162

[1] 史红，姜福兴. 采场上覆大厚度坚硬岩层破断规律的力学分析[J]. 岩石力学与工程学报，2004，23(18)：3 066–3 069.(SHI Hong， JIANG Fuxing. Mechanical analysis of rupture regularity of hard and massive overlying strata of longwall face[J]. Chinese Journal of Rock Mechanics and Engineering，2004，23(18)：3 066–3 069.(in Chinese))

[2] 查文华，李雪，华心祝，等. 基本顶断裂位置对窄煤柱护巷的影响及应用[J]. 煤炭学报，2014，39(增2)：332–338.(ZHA Wenhua， LI Xue，HUA Xinzhu，et al. Impact and application on narrow coal pillar for roadway protecting from fracture position of upper roof[J]. Journal of China Coal Society，2014，39(Supp.2)：332–338.(in Chinese))

[3] 赵国贞，马占国，孙凯，等. 小煤柱沿空掘巷围岩变形控制机理研究[J]. 采矿与安全工程学报，2010，27(4)：517–521.(ZHAO Guozhen，MA Zhanguo，SUN Kai，et al. Research on deformation controlling mechanism of the narrow pillar of roadway driving along next goaf[J]. Journal of Mining and Safety Engineering，2010，27(4)：517–521.(in Chinese))

[4] 姜福兴，尹永明，朱权洁，等. 基于微震检测的千米深井厚煤层综放面支架围岩关系研究[J]. 采矿与安全工程学报，2014，31(2)：167–174.(JIANG Fuxing，YIN Yongming，ZHU Quanjie，et al. Relationship between support and surrounding rock of fully mechanized caving face in thick coal seam of kilometer deep mine based on microseismic monitoring technology[J]. Journal of Mining and Safety Engineering，2014，31(2)：167–174.(in Chinese))

[5] 孔令海，齐庆新，姜福兴，等. 长壁工作面采空区见方形成异常来压的微震检测研究[J]. 岩石力学与工程学报，2012，31(增2)：3 889–3 896.(KONG Linghai，QI Qingxin，JIANG Fuxing，et al. Abnormal strata stress resulted from goaf square of longwall face based on microseismic monitoring[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(Supp.2)：3 889–3 896.(in Chinese))

[6] 马立强，张东升，王红胜，等. 厚煤层巷内预置充填带无煤柱开采技术[J]. 岩石力学与工程学报，2010，29(4)：674–680.(MA Liqiang， ZHANG Dongsheng，WANG Hongsheng，et al. Mining technique with preset packing body in roadway for thick coal seam without coal pillars[J]. Chinese Journal of Rock Mechanics and Engineering， 2010，29(4)：674–680.(in Chinese))

[7] 任奋华，来兴平，蔡美峰，等. 碎裂岩体巷道非对称破坏与变形规律定量预计与评价[J]. 北京科技大学学报，2008，30(3)：221–226. (REN Fenhua，LAI Xingping，CAI Meifeng，et al. Quantitative prediction and evaluation on the regularity of asymmetric damage and distortion upon broken rock mass roadways[J]. Journal of University of Science and Technology Beijing，2008，30(3)：221–226.(in Chinese))

[8] 于洋，柏建彪，王襄禹，等. 软岩巷道非对称变形破坏特征及稳定性控制[J]. 采矿与安全工程学报，2014，31(3)：340–346.(YU Yang，BAI Jianbiao，WANG Xiangyu，et al. Study on asymmetric distortion and failure characteristics and stability control of soft rock roadway[J]. Journal of Mining and Safety Engineering，2014，31(3)：340–346.(in Chinese))

[9] 王炯，郭志飚，蔡峰，等. 深部穿层巷道非对称变形机理及控制对策研究[J]. 采矿与安全工程学报，2014，31(1)：28–33.(WANG Jiong，GUO Zhibiao，CAI Feng，et al. Study on the asymmetric deformation mechanism and control countermeasures of deep layers roadway[J]. Journal of Mining and Safety Engineering，2014，31(1)：28–33.(in Chinese))

[10] 朱红光，谢和平，易成，等. 岩石材料微裂隙演化的CT识别[J]. 岩石力学与工程学报，2011，30(6)：1 230–1 238.(ZHU Hongguang，XIE Heping，YI Cheng，et al. CT identification of microcracks evolution for rock materials[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(6)：1 230–1 238.(in Chinese))

[11] 李术才，李廷春，王刚，等. 单轴压缩作用下内置裂隙扩展的CT扫描试验[J]. 岩石力学与工程学报，2007，26(3)：484–492.(LI Shucai，LI Tingchun，WANG Gang，et al. CT real-time scanning tests on rock specimens with artificial initial crack under uniaxial conditions[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(3)：484–492.(in Chinese))

[12] 朱珍德，渠文平，蒋志坚. 岩石细观结构量化试验研究[J]. 岩石力学与工程学报，2007，26(7)：1 313–1 324.(ZHU Zhende，QU Wenping，JIANG Zhijian. Quantitative test study on mesostructure of rock[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(7)：1 313–1 324.(in Chinese))

[13] 殷帅峰，蔡卫，何富连，等. 高预紧力桁架锚索与单体锚索平行布置支护原理及应用[J]. 中国矿业大学学报，2014，43(5)：823–830.(YIN Shuaifeng，CAI Wei，HE Fulian，et al. Mechanism and application of parallel-arranged composed of truss cable and single cable with high preload[J]. Journal of China University of Mining and Technology，2014，43(5)：823–830.(in Chinese))

[14] 严红，何富连，徐腾飞. 深井大断面煤巷双锚索桁架控制系统的研究与实践[J]. 岩石力学与工程学报，2012，31(11)：2 248–2 257. (YAN Hong，HE Fulian，XU Tengfei. Study of double-cable-truss controlling system for large section coal roadway of deep mine and its practice[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(11)：2 248–2 257.(in Chinese))