auger drilling

常见例句

Pressure pumped CFG pile by continuous auger drilling is a new technology of CFG pile composite foundation.
长螺旋钻管内泵压CFG桩，是一项CFG桩复合地基新技术。
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Pressure pumped CFG pile by continuous auger drilling is a new technology developed in recent years, which is widely applied in nationwide.
长螺旋钻管内泵压CFG桩是近年来发展起来的一种复合地基新技术，在全国大部分地区推广应用。
The valve at the bottom of auger can prevent drilling bits entering hollow pipe during operation. When drilling pipe is taken out and concrete grout is injected, the valve will be opened.
螺旋钻头底部阀门防止钻进过程中钻屑进入到空心的混凝土管中，当钻杆提出同时混凝土浆注入时，钻杆底部的阀门将被打开。