Determination Method of Gas Content in Limestone and Its Application

The determination of gas content in coal and rock mass is the basic work to predict emission working face mine. Generally speaking, exists body adsorbed state free state, amount accounts for a large proportion. In order explore occurrence lime mass, isothermal adsorption experiments are carried out on K2 K3 limestone Yangquan mining area. show that capacity very small mainly as gas. When temperature constant, linearly related pressure pore volume. That is, volume main factors determining mass. Based equation, this paper studies determines indirect calculation method used z15104 Sijiazhuang prediction accuracy about 86%, good obtained. It has certain guiding significance mines with similar geological conditions.