砂墩子矿井4-煤采煤方法与设备选型设计研究

针对砂墩子矿井4-1号煤层赋存和开采技术条件，分析了分层开采、大采高综采和综放开采的适用性，总结了各采煤方法的优缺点，最终确定采用综放开采，同时分析了4-1号煤层的顶煤冒放性|并根据规范要求对综放工作面的液压支架、采煤机、刮板输送机等主要设备选型计算进行了设计研究。开采实践证明，综采放顶煤采煤法适用于砂墩子矿井4-1煤层条件，工作面选取的配套设备合理适宜，实现了“一井一面”的高产高效矿井生产模式，为三道岭矿区4-1煤开采提供了指导和借鉴意义。

Study on Mining Method and Equipment Selection of 4-1 Coal Seam in Shadunzi Coalmine

Based on geological occurence characteristics and mining technical conditions of 4-1 coal seam in Shadunzi coalmine, this paper analyses the applicability of slice mining, large cutting height mining, and fully mechanized sublevel caving, and summarizes their advantages and disadvantages. Fully mechanized sublevel caving is selected, and top coal caving properties are analysed. According to code requirement, main equipment selections, such as hydraulic powered support, coal mining machinery and scraper conveyors, are calculated. Mining practice proves the rationality of fully mechanized sublevel caving and equipment selections, which makes much contribution to high production and high efficiency modernization coal mine pattern，and provides important reference for 4-1 coal seam exploitation in Sandaoling mining area.