煤矿瓦斯灾害的防治是备受关注的重大科研课题，瓦斯涌出量的预测及其流动规律等基础研究对瓦斯灾害的防治具有重要意义。本文首先对国内外有关矿井瓦斯灾害防治技术、瓦斯分布规律研究方法等进行了广泛的文献调研。其次，根据矿井通风理论、瓦斯涌出以及瓦斯运动相关理论，建立了矿井通风巷道瓦斯分布变化规律及其相互关系分析模型，以陈家山矿为对象研究了瓦斯涌出源点瓦斯量的统计规律，并用通风网络计算的方法对瓦斯流动区域的瓦斯流量进行预测。基于对巷道瓦斯涌出分析的结果，构建了概率统计模型，分析了瓦斯涌出的概率特征，对样本数据进行分析并检验其巷道流量分布是否符合正态分布，然后由统计结果得出实际瓦斯涌出趋势。 再次，编制程序对矿井通风网络进行解算，利用解算结果分析各巷道之间瓦斯浓度互相影响关系。依照瓦斯流动基本定律，建立瓦斯流动模型，分析涌出瓦斯在通风系统中的流经范围，以及瓦斯流经区域每一条巷道的瓦斯流量的模拟数值，并研究了矿井通风系统内瓦斯流量的分布特征及瓦斯流量在通风网络的各条分支之间的相关性。 文中利用Visual C++6.0软件开发平台编制基于MapX组件二次开发的瓦斯分析系统，实现了通风网络的解算以及上述模型的分析计算，并实现通风网络图瓦斯区域的图形显示和瓦斯分布函数等概率图形的绘制。

The prevention and control of gas disaster in coal mines is the major issues in the world. The basic study, such as the statistical study on gas pour and gas-flow forecast, is profound significance. First of all, the techniques of gas disaster prevention and control in coal field were widespreadly inquiried both at domestic and abroad literature in the paper. The second, the basic rules about the gas distributing among the vent-lanes, and the analyzing model about gas distribution rules between each vent-lane were founded based on mine ventilation theory, gas gushing rules and gas flowing rules. As an example, The Chen Jiashan mine was used to study the statistical law of quantity of gas gushing at mine source, and a forecast method for gas-flow in every lane around gas-flow area was studied by ventilation network simulation technique. A Probability Stat. Model (PSM) for gas gushing and distributing was founded upon the rules analyzed above. By analyzing the probability characteristic of gas emission, to examine whether or not the gas distribute in current tunnel conforms to the normal distribution, and then the tendency of actual gas emission was obtained. The third, a computer software was carried out to resolve the mine ventilation network, and to analyze the gas density mutual influence relations among various tunnels. Which was established by gas flow model that according with the gas flowing fundamental law. It can analysised the scope that the gas flow in the ventilation system, and the analog value of gas rate of every workings that the gas flowed.Besides, the distribution characteristic and the relativity among cladistices of the rate of gas flow in mine ventilation system and was researched. By using Visual C++6.0 software development platform, it has built gas analysis systems based on the MapX module re-development. The software could carry out the resolution of ventilation network, and could analyze and calculates of gas flowing distrution above. Beside, it can accomplish and realize ventilates the network chart gas chart and so on region graphical display and gas distribution function plans.