含厚夹矸煤层综放开采顶煤冒放性评价  

Evaluation of Top Coal Caving Ability of Fully Mechanized Caving Mining in Coal Seam with Thick Parting

作　　者：陈中华 王虎[1] 李志华[2] CHEN Zhong-hua;WANG Hu;LI Zhi-hua(Yuandian No.1 Coal Mine,Huaibei Mining Industry Co.,Ltd.,Huaibei 235137,China;School of Mining and Safety,Anhui University of Science and Technology,Huainan 232001,China)

机构地区：[1]淮北矿业股份有限公司袁店一井煤矿,安徽淮北235137 [2]安徽理工大学能源与安全学院,安徽淮南232001

出　　处：《煤炭技术》2020年第4期82-84,共3页Coal Technology

摘　　要：为了正确评价含厚夹矸煤层综放开采顶煤冒放性,运用实验室实验、理论分析和现场实测等研究方法,分析了含厚夹矸顶煤破碎机理,夹矸赋存条件对顶煤冒放性的影响,提出了增强顶煤冒放性措施,并对顶煤冒放性进行了现场实测。研究表明:袁店一井煤矿822综放工作面夹矸和顶煤具有很好的冒放性;含厚夹矸顶煤冒放性不仅与夹矸层的层位、厚度及岩性有关,而且还与夹矸层裂隙发育程度有关。研究成果可为其他类似地质条件的放顶煤开采研究提供借鉴。In order to correctly evaluate the top coal caving ability of fully mechanized caving mining in coal seam with thick parting,the laboratory experiment,theoretical analysis and field measurement were applied to study the breaking mechanism in top coal with thick parting,the influence of geological conditions of parting on top coal caving ability was analyzed,the measures of improve the top coal caving ability was proposed,the field measurement was carried out. The results showed that the top coal has a good caving ability of the 822 fully mechanized caving face in Yuandian No.1 coal mine. The top coal caving ability dose not have a relation with the rock properties,location and thickness of the parting,but the coal caving was influenced by the development degree of parting cracks. It could provide reference to the research on top coal caving mining with similar geological condition.

关 键 词：综放开采 顶煤冒放性 夹矸 破碎机理 现场实测 

分 类 号：TD327[矿业工程—矿井建设]