厚煤层综放工作面过空巷开采技术实践

为了有效解决韩家洼煤矿综放工作面过空巷安全开采技术问题,防止回采过程中冒顶事故的发生,通过分析空巷位置和断面因素对回采工作面的影响,提出在空巷中采用锚索梁上架设木垛的支护方式铺设工作面假顶,采取长钢梁垫底、工作面调斜、降低回采高度和工作面支架超前带压擦顶移架等安全技术措施,有效控制空巷围岩变形,确保综放面过空巷安全回采。

Practice of Mining Technique by Passing Through Empty Drifton Fully Mechanized Caving Face in Thick Coal Seam

In order to effectively solve the problem on safety mining technology of Chian passing through empty drift on fully mechanized caving face faced by HanJawa Coal Mine and prevent the happening of roof fall acci-dent during backstopping,this paper presents a set of technical safety measures which includes setting up a support by building wood crib to laying artifical roof at working face on Anchor Craning Beam in empty drift, using long bar as a base,slanting the working face,decreasing height of backstopping and caving face stand processing sliding advance of the support under pressure in advance,to control the deformation of surrounding rocks in empty drift and ensure the safety backstopping of passing through empty drift on fully mechanized ca-ving face,according to analyze the location of empty drift and the influence to backstopping caving face coming from cross -section factors.