The utility model relates to a pile breaking method for casting concrete square piles, which relates to the technical field of the construction of concrete pile heads for concrete square piles with cast concrete. In the first pile elevation cut a mark in the mark from the seam, seam above 4 ~ 6cm cutting cutting seam, seam cutting and removing marker concrete between joints, forming a groove, finally chiseling concrete pile head of the recessed portion. The invention can make the chiseling slit positioned in the slot and the slit between the markers, by removing marker seams and joints between concrete cutting part, can make the mark joints and shear stress between the joints is more concentrated, this method can make the groove become part of the entire pile is the weakest place, increase in risk to fracture the crack is not easy to transfer to the pile bottom, to ensure the chiseling pile head does not appear when the splitting angle and off angle phenomenon. The concrete defects such as the smooth formation of the concrete pile head, the no falling edge and the falling angle of the concrete after being cut out, the appearance is neat and orderly, thus effectively avoiding the safety and quality hidden trouble of the durability of the project.
【技术实现步骤摘要】
【技术保护点】
一种施打砼方桩的破桩方法，其特征在于包括以下步骤： １）在桩身标高处切割一道标记缝； ２）在距上述标记缝上方４～６ｃｍ处切割一道切缝； ３）剔除标记缝和切缝之间的部分混凝土，形成一个凹槽； ４）对凹槽部分的砼桩头进行凿除。
【技术特征摘要】
【专利技术属性】
技术研发人员：朱文芹，
申请(专利权)人：江苏华江建设集团有限公司，
类型：发明
国别省市：32
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