202012

近急斜综采工作面矿压控制研究
发布人:网站管理员 发布时间:2020/12/11 点击次数:84次
  

近急斜综采工作面矿压控制研究
陈杰
(霍州煤电集团回坡底煤矿,山西 洪洞 041600)
摘要: 针对近急斜综采工作面的开采现状,利用RFPA 数值计算系统模拟软件对近急斜综采工作面数学模型进行了模
拟计算,得到近急斜煤层沿着煤层倾斜方向因为充填的差异,中上部顶板压力较大,下部顶板压力较小的结论。在实际
工程中,需对顶板进行强制处理,减小来压步距,降低来压强度,从而保证生产的安全进行。
关键词: 近急斜综采工作面;RFPA 数值计算系统;坚硬顶板;预爆破弱化顶板
中图分类号: TD323     文献标志码: A     文章编号: 2095-0802-(2020)12-0033-03
Study on Mine Pressure Control of Nearly Steep Fully Mechanized Mining Face
CHEN Jie
(Huipodi Coal Mine, Huozhou Coal Electricity Group, Hongtong 041600, Shanxi, China)
Abstract: In view of the current mining situation of the nearly steep fully mechanized mining face, this paper simulated the
mathematical model of the nearly steep fully mechanized mining face by using the software of RFPA numerical calculation system.
The conclusion was drawn that the pressure of the middle and upper roof was larger and the pressure of the lower roof was smaller
due to the difference of filling along the inclined direction of the coal seam. In practical engineering, the roof should be treated
compulsively to reduce the pressure step and the pressure strength, so as to ensure the safety of production.

Key words: nearly steep fully mechanized mining face; RFPA numerical simulation system; hard roof; weaken the roof by preblasting