逆流通和凱利棒鑽法比較 Reverse circulation or Kelly bar drilling
Citation
建築承造雜誌, no.4, 2003, pp. 87-95
Abstract
德國鑽孔專家Wirth最近完成研究，比較两種常用鑽孔方法的相對長處，查究個別方式的優點。就那一種方式最經濟來說，研究得出一個有趣的結論。
German drilling specialist Wirth has recently made a study comparison of the relative merits of two commonly used drilling methods, investigating each procedure's advantages. The study comes to an interesting conclusion as to which is the most economical.
(1) 鑽孔方式
Drilling procedure
(2) 凱利棒鑽法
Kelly bar drilling
(3) 逆流通鑽法
Reverse circulation drilling
(4) 比較两種鑽法的方式
Comparison method of both drilling methods
(a) 凱利棒鑽孔法的優點
Kelly bar drilling - advantages
(b) 凱利棒鑽孔法的弱點
Kelly bar drilling - disadvantages
(c) 逆流通鑽孔法的優點
RCD advantages
(d) 逆流通鑽孔法的弱點
RCD disadvantages
(5) 估計的邊際條件
Supposed marginal conditions
(6) 結果概要
Summary of results
Description
Architect: Wirth, Hermann
Type
Article
Format
Date
2003
Language
en,zh