一次采全高综采工作面覆岩冒落带动态发育特征

doi:10.13722/j.cnki.jrme.2014.s2.037

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摘要以寺河二号井为试验矿井，采用钻孔双栓塞封堵分段注水试验装置与钻孔电视观测系统，探测一次采全高覆岩冒落带发育高度，对裂隙倾角分布特征、数量与宽度、深度与宽度、数量与深度关系进行数字化分析，并就裂隙演变特征进行数值模拟试验。数据分析结果表明：寺河二号井一次采全高综采冒落带发育高度为4.1～4.8 m；随着工作面的推进覆岩裂隙数量直线上升，且以中宽度、小角度裂隙为主；采动过程中裂隙主要聚集在近煤壁区域；覆岩裂隙密度分布曲线呈“蛇”型。

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	熊祖强1
	王晓蕾2
	刘成威1
	李回贵1

关键词 ：采矿工程, 冒落带, 动态发育, 数字化, 钻孔电视, 裂隙

Abstract：Taking Sihe No.2 mine as the experimental mine，by using the equipment which is sealed two ends by capsules in borehole，affused measurable water between the two capsules and borehole televiewer observation system，overburden caving zone height of mining overall height in one times is monitored and analyzed through the digital relationship of fractures around mining such as change of dip angle，numbers and width，depth and width，numbers and depth. At the same time，similarity model experiment of fracture development character is carried out. The results show that caving zone height changes from 4.1 to 4.8 m. The fractures with small angle and middle width after mining are in the majority. With increase of the mining of working face，the numbers of fractures increase linearly. The fractures cluster region mainly focuses near the coal wall. The fractures density distribution curves of overlying strata like sanke-shapes.

Key words： mining engineering caving zone dynamic development digital borehole televiewer fracture

引用本文:

熊祖强1，王晓蕾2，刘成威1，李回贵1. 一次采全高综采工作面覆岩冒落带动态发育特征[J]. 岩石力学与工程学报, 2014, 33(S2): 3692-3698.
XIONG Zuqiang1，WANG Xiaolei2，LIU Chengwei 1，LI Huigui1. DYNAMIC DEVELOPMENT CHARACTERISTICS OF CAVING ZONE OVERBURDEN STRATA IN FULLY-MECHANIZED MINING STOPE UNDER ONE-PASS MINING. , 2014, 33(S2): 3692-3698.

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https://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2014.s2.037 或 https://rockmech.whrsm.ac.cn/CN/Y2014/V33/IS2/3692

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