A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a construction method for a pile head of a bored cast-in-situ pile. The method comprises the following steps that supporting steel bars are welded to a pile steel reinforcement cage; each pile reinforcement head of the pile reinforcement cage is sleeved with a ferrule; welding the current section of reinforcement cage with the lower layer of reinforcement cage, installing the current section of reinforcement cage in place, and before the current section of reinforcement cage is in place, performing release agent treatment on the periphery and the surface of the supporting part; concrete is poured into the supporting part, and vibration is completed; and after the age is reached, soil cutting and cleaning of soil layers around the column are started, the supporting part is dismantled, and the supporting part is pulled out of the pile steel bar head. The supporting part is additionally arranged to cover the pile head, the anchored reinforcing steel bar penetrates through the supporting part and is fixed to the supporting part, excessive concrete flooding can be prevented, the effect of protecting the anchored reinforcing steel bar is achieved, and chiseling is not needed after the pile head is dismantled.
本发明公开了一种钻孔灌筑桩桩头施工方法，所述方法包括以下步骤：在桩钢筋笼上焊接支撑钢筋；在所述桩钢筋笼的各个桩钢筋头上套上套圈；将本节钢筋笼与下层钢筋笼焊接，安装本节钢筋笼并就位，就位前，对支护部周边及表面进行脱模剂处理；在所述支护部内浇注砼，并振捣完成；达到龄期后，开始挖土、柱周边土层清理，并对所述支护部进行拆除，将所述支护部从桩钢筋头上拔出。本发明通过增加一个支护部盖在桩头上，让锚固的钢筋穿过支护部并进行与支护部固定，可以防止砼泛浆过多，起到护住锚固钢筋的作用，并且拆除桩头后不需剔凿。
The invention discloses a construction method for a pile head of a bored cast-in-situ pile. The method comprises the following steps that supporting steel bars are welded to a pile steel reinforcement cage; each pile reinforcement head of the pile reinforcement cage is sleeved with a ferrule; welding the current section of reinforcement cage with the lower layer of reinforcement cage, installing the current section of reinforcement cage in place, and before the current section of reinforcement cage is in place, performing release agent treatment on the periphery and the surface of the supporting part; concrete is poured into the supporting part, and vibration is completed; and after the age is reached, soil cutting and cleaning of soil layers around the column are started, the supporting part is dismantled, and the supporting part is pulled out of the pile steel bar head. The supporting part is additionally arranged to cover the pile head, the anchored reinforcing steel bar penetrates through the supporting part and is fixed to the supporting part, excessive concrete flooding can be prevented, the effect of protecting the anchored reinforcing steel bar is achieved, and chiseling is not needed after the pile head is dismantled.
本发明公开了一种钻孔灌筑桩桩头施工方法，所述方法包括以下步骤：在桩钢筋笼上焊接支撑钢筋；在所述桩钢筋笼的各个桩钢筋头上套上套圈；将本节钢筋笼与下层钢筋笼焊接，安装本节钢筋笼并就位，就位前，对支护部周边及表面进行脱模剂处理；在所述支护部内浇注砼，并振捣完成；达到龄期后，开始挖土、柱周边土层清理，并对所述支护部进行拆除，将所述支护部从桩钢筋头上拔出。本发明通过增加一个支护部盖在桩头上，让锚固的钢筋穿过支护部并进行与支护部固定，可以防止砼泛浆过多，起到护住锚固钢筋的作用，并且拆除桩头后不需剔凿。
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