bouldery
- 网络巨砾的;漂砾类的
bouldery
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Pile hole construction technique in deep bouldery formation
深厚卵砾石层桩基成孔技术
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When used to install large diameter bored piles in bouldery formation , the method exhibits fully such technical advantage as high hole completion efficiency , good quality , little environmental pollution and is an advance of the domestic pile foundation drilling technology .
在卵砾石层中施工大口径钻孔桩,该工法充分显示出成孔效率高、质量好、环境污染小等技术优势,是国内桩基工程施工技术的新发展。