综采面斜长变化成因分析及对策探讨

Approach on Combined Mining Face Inclined Length Change Cause Analysis and Counterplot

在综采工作面回采过程中,经常出现工作面斜长增长或缩短的现象,要求增加或减少支架、延长或缩短溜子,同时由于工作面斜长增加或缩短造成工作面出口不畅或两端头空顶区加大,对上隅角瓦斯管理极为不利。这不但增加了工人劳动强度、加大了管理难度,而且给综采面安全生产和保证煤炭产量带来很大影响。结合开采条件及采煤实践分析了综采面斜长变化的原因,提出了相应的措施,对指导现场有积极的作用。

In the extraction of mining,the inclined length of face changes often,increasing or decreasing,which is requested to change support numbers,to change chute length,which makes face exit impeded,both end goal increase and uper comer gas management harmful and which not only increases labour intensity,management difficulty,but also affects the output of coal production and extraction face safety.This paper analyzes face inclined length change cause combined with mining conditions and practices and puts forward the relative measures for guide of work site management.