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苏联混凝土及钢筋混凝土科学研究院研制了一种新组合桩接头,上下两根桩用预埋于桩内而外伸的A-Ⅲ级钢筋来联接,接头用合成树脂为主要成分的高强度粘结剂粘结。这种胶结接头施工很简单,与现在所采用的钢板接头的不同点是能较合理地应用钢材的强度,其中包括合理地应用钢筋的强度,因此能显著降低用钢量并降低桩接头的造价。桩体胶结是在浇筑混凝土之前在上桩的端部预留出外伸钢筋,下桩端部预留出洞眼,接桩时涂胶一层并用胶灌满洞眼,然后将上桩预留外伸钢筋插入下桩洞眼内。这样,上桩的预留外伸钢筋用胶固定在下桩上部的洞眼内,上下两桩端部的混凝土表
The Soviet Academy of Concrete and Reinforced Concrete Research has developed a new type of composite pile joint. The two upper and lower piles are connected by A-III steel rebars that are embedded in piles, and the joints are made of high-strength adhesives with synthetic resin as the main component. Adhesive bonding. This cemented joint construction is very simple, and the difference with the steel joints used today is that the strength of the steel can be reasonably applied, including the reasonable application of the strength of the steel, thereby significantly reducing the amount of steel used and reducing the cost of the pile joints. . The cementing of the pile is to reserve the outstretched steel bar at the end of the pile before pouring the concrete, and to reserve the hole at the end of the lower pile, apply a layer of glue on the pile and fill the hole with glue, and then reserve the pile. Extruded reinforcement is inserted into the hole under the pile. In this way, the reserved outriggers on the piles are glued in the holes in the upper part of the lower pile, and the concrete on the top and bottom ends of the two piles