非开挖铺管中钻头泥包问题的分析与对策  

Anlysis and Countermeasures of Bit＇s Mud Package in Trenchless Directing Drilling

作　　者：唐佳芝[1] 乌效鸣[1] 谢强 任旭斌[1] 

机构地区：[1]中国地质大学武汉工程学院,430074 [2]武钢建工集团建设分公司

出　　处：《非开挖技术》2011年第4期28-31,共4页China Trenchless Technology

摘　　要：非开挖导向铺管过程中，当钻遏较软岩层或泥页岩层时，经常会遇到钻头被泥包的现象，尤其在扩孔过程中，更为明显。针对这种现象，从三个方面认真了分析钻头泥包的原因，并提出从泥浆方面入手的对策。进行室内推力实验，在武汉江夏区的非开挖施工现场提出配方并加以应用，对提高钻进效率有重要的意义。in trenchless directing pipe, when we meet the soft rock or mud rock, it often will encountered the phenomenon that bit was packaged by mud, especially in spread hole process. For this, we analyze the cause seriously from the three aspects. And make some countermeasures. The indoor experiment is made ,and we give the drilling fluids formula of trenchless construction in Jiangxia district of Wuhan, which has important significance to improve drilling efficiency.

关 键 词：钻头泥包 泥浆 非开挖 推力实验 

分 类 号：U175[交通运输工程]