防止煤与瓦斯突出的方法分为局部性的,即直接由回采和准备工作面施工的和区域性的,即在回采工作面开始生产之前施工的两类。在区域性方法中,应用最广的是开采保护层。不过此法的应用取决于特殊的矿山地质条件,尤其是在煤系中要有一定厚度 Methods to prevent the outburst of coal and gas are classified as localized, ie, directly from the mining and preparation of work surfaces and from the regional, ie, two types of construction prior to the commencement of production of the mining face. In the regional approach, the most widely used is the exploitation of the protective layer. However, the application of this method depends on the special geological conditions of the mine, especially in the coal system to have a certain thickness