摘要
近年来采用钻孔灌注桩处理高楼、桥梁、码头等建筑基础日益增多,对一些单桩承载力大的桩,则采用扩底桩,本文记述了自制的一种连杆铰链式基桩扩底钻头的研制应用和取得的效益。
In recent years,drill hole grouting pile has been increasingly used for treating building foundation (as high buildings,bridges,wharves,etc.).For some individual piles with a large load,reamer bits are used.We have developed and manufactured connecting rod-hinge type reamer bits for use ill foundationpile drilling.In practical use of such bits,good benefits were obtained.
出处
《地质与勘探》
CAS
CSCD
北大核心
1992年第9期63-64,F003,F004,共4页
Geology and Exploration
