AQK嵌岩扩底钻头的结构特点

Drilling Machinery Company Limited of Hebei Construction Exploring Institute

摘要:

论述了AQK大直径嵌岩扩底钻头的结构设计特点，阐述了新型扩底钻头的适应性和可靠性，对扩底钻头制造及钻扩施工过程中的关键问题提出了几点要求。

Abstract:

This paper discusses the structural design features of AQK large diameter rock-socketed belled drill, illustrates the adaptability and reliability of this new belled drill and puts forward some requirements to the key problems of belled drill manufacture and construction process.