基于激光相位原理的煤巷两帮及顶底板移近量检测技术研究

Research on Detection Technology of Convergence between Roof and Floor and Two Sides of Coal Roadway Which Based on Laser Phase

随着煤矿开采深度的增加和开采强度的加大,矿压事故也日益严重,约占煤矿事故的30%。煤矿矿压事故是一系列物理特征的综合反映,具体需要监测的物理量有支架的负荷、煤巷两帮及顶底板的移近量和煤层压力等。采用激光相位原理的测距技术具有精度高、稳定性好、安装使用方便等优势,非常适用于矿压监测中煤巷两帮及顶底板移近量的检测。

With the increase of mining depth and mining strength,mine pressure accident is increasingly serious,which accounts for about 30% of the coal mine accidents.Coal mine pressure accident is a series of physical features of the comprehensive reflection.This needs to monitor the support load on stents,convergence between roof and floor,convergence between two sides of coal roadway,coal seam pressure parameters,etc.Based on the principle of laser phase range measure technology has high precision,good stability,and easy to install,etc.It is very suitable for mine pressure monitoring to detect the convergence between roof and floor,the convergence between two sides of coal roadway.