shaft drilling

Development of Coal Mine Shaft Drilling Machine in Our Country

我国煤矿竖井钻机的发展

Discussion on full face pull construction technology of the deep mine shaft drilling method

钻用钻井机钻（矿井）深立井钻井法全断面一次钻进施工技术的探讨

Fracture Analysis of the Transmission Shaft in Screw-Drilling Device

螺杆钻具传动轴断裂分析

The results of research in this article would provide a theoretical and arithmetic method for the fluid-structure interaction analysis of the rotary slender shaft, the stirring shaft in the chemical engineering machinery and the rod string and drill string in the oil drilling and production engineering.

本文研究成果可为化工机械中的细长旋转轴和搅拌轴、石油钻采工程中的抽油杆柱和钻柱的固液耦合分析提供了理论基础和计算方法。

According to probabilistic theory, load on drilling shaft lining is respectively modelized.

根据概率理论, 将作用于钻井井壁上的荷载分类模化.

Application of New Drilling Shaft Machine in Big Diameter Shaft of Deep Alluvium

新型煤矿竖井钻机在深厚冲击层大井径井筒施工中的应用

Structural analysis and improved design for transmission shaft of screw-drilling device

螺杆钻具传动轴的结构分析与改进设计