Mechanical Feature Analysis and Countermeasure on Drilling in the Outburst Soft Coal Seams
(0) The precondition to realize the gas drainage is drilling. But it is very difficult to drill in the outburst and soft coal seams, especially to drill the deep holes in these regions. The phenomena such us the hole falling down, hole breaking down, hole spraying or the drill rod broken often occur. Those phenomena have a strong relationship with the soft coal features and the high gas existing , and can be taken as the result both of the gas resolution releasing and the mechanical action. To reduce or overcome the problems those occurring in the drilling process, should use an integrating method. This paper has analyzed the mechanical feature of the drilling cutting process and discussed the methods should be taken to solve the problems occurring in the course of soft coal deep hole drilling .The discussing contents here are limited to the aspects of the drilling mechanisms, such as the aiguilles, the combination tools and the rods, etc.
soft coal seam drilling gas outburst soft coal feature drilling parameter helical drill rod
GUO Peihong ZHU Jianan
School of Mechanical Science & Engineering, Huazhong University of Science and Technology, Wuhan 430 School of Mechanical and Power Engineering, Henan Polytecnic University, Jiaozuo 454003, Henan, Chin
国际会议
The 2007 International Symposium on Safety Science and Technology(2007采矿科学与安全技术国际学术会议)
河南焦作
英文
253-257
2007-04-17（万方平台首次上网日期，不代表论文的发表时间）