特厚煤层大采高综放工作面覆岩上层活动规律的相似模拟研究  

Analog Simulation Study on Deformation and Failure Laws of Overlying Strata of Full-mechanized Top-coal Caving Face with Large Mining Height in Extra Thick Coal Seam

作　　者：陈义东 李英明[2] 

机构地区：[1]中国大唐煤业有限责任公司,北京100140 [2]安徽理工大学煤矿安全高效开采省部共建教育部重点实验室,安徽淮南市232001

出　　处：《矿业研究与开发》2011年第2期8-10,70,共4页Mining Research and Development

基　　金：安徽高校省级自然科学研究重点项目(KJ2010A100)

摘　　要：新疆哈密煤业集团硫磺沟矿4号煤层厚度为14~20m,为掌握该特厚煤层综放工作面上覆岩层活动规律以及支承压力分布特点,采用物理相似模拟方法进行了研究,研究结果表明,特厚大采高综放工作面的上位岩层可以形成稳定拱结构,而在稳定拱大结构之下,断裂岩梁形成多跨梁的结构。大采高综放采场上覆岩层的这种结构的变形和失稳将决定采场的支承压力分布和工作面的矿压显现。In order to know well the movement pattern of overlying strata and the distribution of abutment pressure in the full-mechanized top-coal caving face with large mining height of the 4# coal seam of which thickness is form 14 m to 20 m,in Liuhuanggou coal mine of Xinjiang Hami Coal Industry（Group） Co.Ltd,physical simulation experiment and studies were carried out.The results showed that a stable arch structure can form in overlying strata of full-mechanized top-coal caving face with large mining height of extra thick coal seam,under the stable arch structure the fractured rock beam becomes a multi-span beam structure.The deformation and unstability of the structure in overlying strata of full-mechanized top-coal caving face with large mining height dominate the abutment pressure distribution and strata pressure behavior of coal mining face.

关 键 词：特厚煤层 大采高综放 相似模拟 支承压力 多跨梁结构 

分 类 号：TD823.97[矿业工程—煤矿开采]