现浇多边形混凝土空心桩多棱锥合页式空心钢桩靴制造技术

本发明专利技术提供一种现浇多边形混凝土空心桩多棱锥合页式空心钢桩靴，该空心钢桩靴连接在包括有多边形外钢套管及内圆钢套管的多边形混凝土空心桩的端部，在多边形外钢套管下端部的每一边通过铰链连接有多片钢合页的直线段一端，钢合页的另一端为弧线段，多片钢合页的弧线段合拢与内圆钢套管的外周相贯，形成多棱锥体，每两片钢合页之间设有防渗漏衬条。本发明专利技术的效果是此种多棱锥空心钢桩尖穿透能力强，可穿透较坚硬土层，且可重复使用，节省了预制外多边形内园空心钢筋混凝土桩尖，降低了投资。可以广泛用于桩基工程、复合地基工程、基坑支护工程，应用方便且前景广阔。

Cast in situ polygonal concrete hollow pile multi pyramid hinge type hollow steel pile boots

The invention provides a cast-in-situ concrete hollow pile of polygonal pyramid hinge type hollow steel shoe, the hollow steel shoe comprises a polygonal end connected to the concrete hollow pile of polygonal steel casing and casing in the round, outside the polygon steel casing on each side of the lower end through a hinge connected with a plurality of steel the hinge line segment end, the other end of the steel hinge for arc segments, outer circumference through multi piece steel hinge arc closure and in steel casing pipe, forming a pyramid, anti leakage lining is arranged between every two pieces of steel. The utility model has the advantages that the penetration ability of the multi pyramid hollow steel pile tip is strong, and the utility model can penetrate the hard soil layer, and can be used repeatedly. The utility model can be widely used in pile foundation engineering, composite foundation engineering and foundation pit supporting engineering, and has the advantages of convenient application and broad prospect.

【技术实现步骤摘要】

【技术保护点】
一种现浇多边形混凝土空心桩多棱锥合页式空心钢桩靴，该空心钢桩靴连接在包括有多边形外钢套管及内圆钢套管的多边形混凝土空心桩的端部，其特征是：在所述多边形外钢套管（1）端部的每一边通过铰链连接有一片钢合页（3）的直线段一端，钢合页（3）的另一端为弧线段，多片钢合页（3）的弧线段合拢与内圆钢套管（2）的外周相贯，形成多棱锥体，每两片钢合页（3）之间设有防渗漏衬条。

【技术特征摘要】

【专利技术属性】
技术研发人员：王燕，刘学武，李金华，刘欣梅，
申请(专利权)人：中交天津港湾工程设计院有限公司，
类型：发明
国别省市：