济青公路（惠民段）桥梁桩钻孔施工简介
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摘要: 本文以济青公路惠民段的大口径桥梁钻孔灌注桩成孔施工为例,介绍了喷射或反循环钻进和冲抓钻进的成功经验。Abstract: Tlie successful experience of the ejecting reverse-circulation drilling and percussion and grabbing drilling is introdaced based on the case of the constrcction of the bridge drilled cast-in-place pile with large diameter in the Huiming area of the highway from Jinan to Qingdao in this paper.
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