The different effects of shock wave, gas expansionpressure, reflected extension wave are put forward.
提出了冲击该、气体膨胀压和反射拉伸波在破岩过程中各自所起的不同作用。
2
The gas permeation power would be dependent on the gas pressure gradient and the gas expansionpressure would be dependent on the gas absolute pressure.
瓦斯的渗透力取决于瓦斯压力梯度,而瓦斯膨胀压力取决于瓦斯绝对压力。
3
The influence of softening extent on stress, displacement and the radius of plastic zone during expansion as well as the extreme expansionpressure are studied.