综采面预裂切顶方案应用研究
杜炜
（霍州煤电集团回坡底煤矿，山西 洪洞 041600）
摘要： 以东四采区左翼10#煤层综采面为研究背景，在工作面煤壁后方200～300 m范围内实施了预裂切顶方案，利
用双向聚能爆破，采用6 眼连爆的方式引爆。矿压规律显示，液压支架压力范围为10.2～49.6 MPa，工作面推进至33 m
左右时顶板垮落，证明了预裂切顶方案的可行性。
关键词： 综采面；预裂切顶；双向聚能爆破；矿压规律
中图分类号： TD823     文献标志码： A     文章编号： 2095-0802-(2022)09-0195-03
Application of Pre-split Roof Cutting Scheme in Fully Mechanized Mining Face
DU Wei
(Huipodi Coal Mine, Huozhou Coal Electricity Group, Hongtong 041600, Shanxi, China)
Abstract: Taking the fully mechanized mining face of the 10# coal seam in left-wing of east fourth mining area as the research
background, the pre-split roof cutting scheme was implemented within 200-300 m behind the coal wall of the working face. Using
two-way shaped energy blasting, the explosion was detonated in a 6-eye burst. The mine pressure law showed that the pressure
range of the hydraulic support was 10.2-49.6 MPa, and the roof collapsed when the working face was advanced to about 33 m,
which proved the feasibility of the pre-split roof cutting scheme.

Key words: fully mechanized mining face; pre-split roof cutting; two-way shaped energy blasting; mine pressure law