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Experimental Research on Reverse Circulation Constant Sampling Air Jet bit Drilling

机译:反循环恒定采样空气射流钻探的实验研究

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摘要

Reverse circulation air spurting drilling is a new technology which makes the compressed air spurt out through the jet bit to cut soil, and meanwhile, utilizes the air after cutting and the air from spurt leading hole to remove the soil back to ground.
机译:反向循环空气喷射钻孔是一种新技术,使压缩空气通过喷射钻头突然削减土壤,同时,在切割和来自涡旋前孔的空气中使用空气,将土壤移除返回到地。

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