Faculty of Resources & Safety Engineering,China University of Mining and Technology(Beijing)

针对软煤钻杆研究及应用现状,基于不同的钻杆形式及排粉动力方式,介绍了不同钻杆的定义、适用范围、优缺点、排粉动力模型,并对软煤钻杆发展历程进行分析。通过对软煤打钻研究工作的分析,指出研究工作中的不足之处:软煤流变研究成果与软煤钻孔理论结合不足;排粉动力学及耦合排粉问题研究工作亟待深入;钻杆表面降阻问题未受足够重视;软煤钻孔孔壁固化研究发展缓慢;整体式成型技术有待推广。同时,指出了软煤钻杆的发展趋势,包括多动力耦合、多结构耦合、高强度钻杆、智能钻杆等方向。

Accoding to the study and appicaion status of soft seam driWling rod based on th diferent illing rod mode and the dust removal dynamic mode.the pape inroduced the defmntion.applc ation scope, advantage and disadvantage.dust removal ynamic modelof the diferent drlling rod and analysed the development couse of sot caldrling rod. with the analysis on the study work of soft coaldrling.the paper pointed out the disadvantages of the study work. The study resulis of thesotcoal heology and the soft coal ilig theory were not tuficienty integrated. The studay work on the dust removal dynamics and coupling dust removal problem should be conducted deeply Theresistancereduction problem of the rod surface could not suficiently be in atention. A study on consolidation ofthe borehole wal in sof seam was slowly progressed. The inegrated prototyping techndiogy was to be promoted.Meanwhile,the paper pointed out the development tendency of the sot seam driling rod, including the muiti power coupling.multi structure coupling.nigh strength drillig rod.intelligent drilling rod and other orientation.

国家重点基础研究发展计划(973计划)资助项目(2011CB201202)；国家自然科学基金面上资助项目(E041003)；中央高校基本科研业务费专项资金资助项目(2009K03)；