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。

关键词:扩底钻头;大直径;扩底桩

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.

Key words:belled drill; large diameter; belled pile