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永胜大桥为115+206+115m预应力混凝土连续刚构,全长436m,直径准1.8m摩擦端承桩基础。每个主墩25条,桩长70m。引桥桩径准1.8～1.5m,桩长50m。文章介绍泥质胶结砂砾岩地层灌注桩成孔施工工艺。
Yongsheng Bridge is a 115 + 206 + 115m prestressed concrete continuous rigid frame with a total length of 436m and a quasi 1.8m friction end-pile foundation. Each main pier 25, pile length 70m. Pile diameter quasi 1.8 ~ 1.5m, pile length 50m. The article introduces the construction technology of the grouting pile in the mudstone cemented conglomerate formation.