煤与瓦斯突出预警系统软件设计与应用

Design and Application of Coal and Gas Outburst Warning System Software

首先根据煤与瓦斯突出的发生机理与实际情况,考虑影响瓦斯涌出的多种因素,构建了系统全面、科学的煤与瓦斯突出预警指标体系,然后基于VB编程和SQL Server2000,开发了煤与瓦斯突出预警系统软件。并利用实际瓦斯涌出浓度数据进行了煤与瓦斯突出预警应用,结果表明:煤与瓦斯突出孕育阶段,系统预警指标均表现出明显异常,具体表现为,星空图点子云加密,G线图平均线整体呈上扬趋势,并多次出现连续连拉"三阳线",移动平均线多次发出穿越和多头均线排列等有效信号,振幅变动量加大,图形上表现为上升并多次出现脉冲,浓度变化频次总体呈增大趋势,实现了对样本数据工作面煤与瓦斯突出的早期预警。

Firstly, according to the mechanism and actual condition of coal and gas outburst, considering various factors of gas emis- sion, a comprehensive and scientific coal and gas warning index system is built, and then the coal and gas outburst warning system soft- ware is developed based on VB programming and SQL Sever2000. The system software is used with actural gas emission data, and the result shows that all of the warning indexes are abnormal in early stage of coal and gas outburst ; the concrete features are that the point cloud in sky chart is more denser; the average line of G line chart is generally upward and shows ＂three yang＂ trend many times; the moving average line repeatly sends effective signal of crossing and multi - average line arrangement, the variation quantity of amplitude increases, which is showed as upward trend and multiple pulse on the gragh; the change frequency of gas concentration is increased trend, which achieves the warning of coal and gas outburst.