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Construction method for plugging pile top of pre-tensioned prestress concrete pipe pile
The invention discloses a construction method for plugging a pile top of a pre-tensioned prestress concrete pipe pile. The construction method comprises the following steps of (1) stopping conveying apipe pile when the last pipe pile is conveyed by a holding type static pile press machine till the pile top is 1m higher than the ground; (2) welding four corners of a square steel plate to a flangeplate of the pile top of the last pipe pile together by spot welding; (3) conveying the pile in a vertical direction till the pile top of the last pipe pile is lower than a field ground; (4) repeatingthe steps (1) to (3) for constructing a plurality of prestress concrete pipe piles; (5) excavating a foundation pit in an outer peripheral direction of each prestress concrete pipe pile, then carrying out groove cleaning on a bottom surface of each foundation pit, and finally, pouring a cushion on the bottom surface of each foundation pit; and (6) removing the steel plate for blockage, and pouring filler concrete to a pile core of each pre-tensioned prestress concrete pipe pile. The pile core is not toped as a soil mass is blocked by the method.
本发明公开了一种先张法预应力混凝土管桩桩顶封堵施工方法，包括以下步骤：(1)采用抱压式静压桩机将最后一节管桩送桩至桩顶标高高出地面1m时停止送桩；(2)将正方形钢板的四角与最后一节管桩的桩顶的法兰盘点焊焊接在一起；(3)沿竖直方向送桩直至最后一节管桩的桩顶标高低于现场地面；(4)重复步骤(1)到(3)进行多根预应力混凝土管桩的施工；(5)在每一根预应力混凝土管桩的外圆周方向开挖基坑，然后对基坑底面进行清槽，最后在基坑底面进行垫层浇筑；(6)拆除封堵用的钢板，向每个预应力混凝土管桩的桩芯浇筑填芯混凝土。采用本方法封堵土体不堵塞桩芯。
Construction method for plugging pile top of pre-tensioned prestress concrete pipe pile
The invention discloses a construction method for plugging a pile top of a pre-tensioned prestress concrete pipe pile. The construction method comprises the following steps of (1) stopping conveying apipe pile when the last pipe pile is conveyed by a holding type static pile press machine till the pile top is 1m higher than the ground; (2) welding four corners of a square steel plate to a flangeplate of the pile top of the last pipe pile together by spot welding; (3) conveying the pile in a vertical direction till the pile top of the last pipe pile is lower than a field ground; (4) repeatingthe steps (1) to (3) for constructing a plurality of prestress concrete pipe piles; (5) excavating a foundation pit in an outer peripheral direction of each prestress concrete pipe pile, then carrying out groove cleaning on a bottom surface of each foundation pit, and finally, pouring a cushion on the bottom surface of each foundation pit; and (6) removing the steel plate for blockage, and pouring filler concrete to a pile core of each pre-tensioned prestress concrete pipe pile. The pile core is not toped as a soil mass is blocked by the method.
本发明公开了一种先张法预应力混凝土管桩桩顶封堵施工方法，包括以下步骤：(1)采用抱压式静压桩机将最后一节管桩送桩至桩顶标高高出地面1m时停止送桩；(2)将正方形钢板的四角与最后一节管桩的桩顶的法兰盘点焊焊接在一起；(3)沿竖直方向送桩直至最后一节管桩的桩顶标高低于现场地面；(4)重复步骤(1)到(3)进行多根预应力混凝土管桩的施工；(5)在每一根预应力混凝土管桩的外圆周方向开挖基坑，然后对基坑底面进行清槽，最后在基坑底面进行垫层浇筑；(6)拆除封堵用的钢板，向每个预应力混凝土管桩的桩芯浇筑填芯混凝土。采用本方法封堵土体不堵塞桩芯。
Construction method for plugging pile top of pre-tensioned prestress concrete pipe pile
一种先张法预应力混凝土管桩桩顶封堵施工方法
WANG LIMEI (author) / ZHANG ZHENYU (author) / XI BO (author) / GUO JIANDONG (author) / WANG LEI (author)
2020-04-17
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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