厚煤层下分层综放开采冒放性研究

发布时间：2018-05-07 08:22

  本文选题：厚煤层 + 顶煤冒放性　； 参考：《煤炭科学技术》2017年S1期

【摘要】：为研究活鸡兔井12煤层复合区下分层综放开采可行性,其关键因素是顶煤冒放性判定。通过对活鸡兔井12煤层复合区下分层开采技术条件、地质条件类比、数值模拟等进行分析。首先从影响综放工作面冒放性的主要因素进行分析,包括煤层强度、煤体的完整性、煤层结构、顶板岩性与厚度、开采工艺等,进而采用类比与数值模拟手段进行验证,得出活鸡兔井12煤层下分层顶煤冒放性属于Ⅱ—Ⅲ类,可以采用综放工艺开采。为神东矿区浅埋特厚坚硬煤层综放开采可行性提供理论依据支持,也为神东以及国内其他矿区类似条件煤层开采提供借鉴。
[Abstract]:In order to study the feasibility of fully mechanized top-coal caving mining under the compound area of No. 12 coal seam in Huojijiu well, the key factor is to judge the caving ability of top coal. The technical conditions of stratified mining, the analogy of geological conditions and numerical simulation under the compound area of No. 12 coal seam in Huojiyu well are analyzed. Firstly, the main factors affecting caving ability of fully mechanized caving face are analyzed, including coal seam strength, coal body integrity, coal seam structure, roof lithology and thickness, mining technology, etc. It is concluded that the caving property of top-coal caving under 12 coal seam in Huojiyu well belongs to class 鈪，

本文编号：1856173