Study on the laws of the mine pressure appearance of the large tilt angle compound mining in Ⅱ661 Work Face of Liuqiao Coal mine李效军, 吴徇14-17
Conclusions compared using Singularity -point Couple JR and Positive -negative Phase JR for distinguishing rock from coal李旭, 顾涛21-24
Study on some key problems of the grid - connected main ventilator in the deep reconstruction and extension at Kongzhuang Mine姚向东, 梁红立, 倪文耀28-32
Primary exploration onthe .motion law of solid bulk materia of waste rock thrown in large aperture vertical line赵庆彪, 韩红利, 谢宏, 张振芳33-35
Study on protection layer exploiting technology and press released area of wugou coal mine焦殿志, 王志亮36-39