2) pump pressure construction in continuous auger drilling pipe
长螺旋钻管内泵压施工
3) long spiral construction
长螺旋施工
4) long-spiral
长螺旋钻机
1.
The paper discussed the reasons of bored hole collapsing in sandy aquifer construction with long-spiral driller and the technological principle of wall protection with grouting under-borehole with an engineering case;and also introduced the application and effect of this technology in long-spiral bored cast-in-situ pile,the application limit for long-spiral bored hole pile was broadened.
阐述长螺旋钻机在含水砂层施工中钻孔坍塌的原因和孔底注浆护壁的工艺原理,并通过工程实例,介绍孔底注浆护壁工艺在长螺旋钻孔灌注桩中的应用和效果,拓展了长螺旋钻孔灌注桩的适用条件范围。
5) CFG pile by long auger machine
长螺旋施工CFG桩
6) long screw auger taking clay machine
长螺旋钻孔机
补充资料：动力头钻机施工边坡加固孔
动力头钻机施工边坡加固孔
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说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条