岩土钻探工程大口径钻头设计与应用

Design and Application of large Diameter Bit in Rock and Soil Drilling

摘要:

分析对比了多种岩土钻探工程大口径钻头的优缺点，设计了适应不同地层的大口径钻头。

Abstract:

A large diameter bit was designed for different formations by analysing and comparing the advan-tages and disadvantages of many kinds of many kinds large diameter bit for rock and soil drilling engineerings.