厚煤层综放沿空留巷安全技术研究

Study on Safety Technology of Roadway along Gob with Thick Coal Seam Fully Mechanized Caving

厚煤层综放开采回采率以及巷道支护问题是影响矿井高产高效的重要因素。以燕子山矿的采掘地质条件为基础,探索采用下顺槽巷道沿空留巷无煤柱开采,作为提高回采率的主要手段。

Thick coal seam fully mechanized mining recovery rate and roadway support problem are two of the important factors affect mine high yield and benefit.Based on the mining geological conditions in Yanzishan Coal Mine,this paper explores the use of gob-side entry retaining without coal pillars along the lower gateway as the main means to improve the recovery rate.