青藏铁路基础桩孔施工用旋挖钻具的研究

Research on Rotary Downhole Drilling Tools Used in Foundation Pile Construction of Railway Qinghai to Tibet

摘要:

根据青藏铁路采用旋挖钻进施工的特点，研制出适应青藏铁路各种地层条件的旋挖钻具，并制定出一套科学的旋挖钻进工艺，从而解决了青藏铁路桥桩基础施工这一世界难题，也为实现旋挖设备和钻具国产化打下良好基础。

Abstract:

From the specialty of rotary drilling technique applied in construction of Railway Qinghai to Tibet, several kinds of rotary drilling tools were developed to match the formation conditions under the railway Qinghai to Tibet, and their relative application techniques were scientifically designed. So the problems in foundation construction of railway Qinghai to Tibet which are difficult to all world were solved, making a foundation for manufacturing rotary drilling equipment and tools within China.