Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method convenient for breaking pile head of cast-in-place pile
The construction method comprises the steps that before a cast-in-place pile reinforcement cage is installed and concrete is poured, an isolation pipe is installed in a to-be-broken section of the cast-in-place pile head, the outer diameter of the isolation pipe is matched with the inner diameter of the reinforcement cage, and the length of the isolation pipe is not smaller than the height of the to-be-broken section; the bottom of the isolation pipe is flush with the bottom of the to-be-broken section; after the isolation pipe is installed, concrete is poured into the cast-in-place pile reinforcement cage to the top of the cast-in-place pile reinforcement cage, and the concrete formed in the isolation pipe of the to-be-broken section is a cast-in-place pile head; after the strength of the concrete meets the breaking requirement, a plurality of wedge holes are evenly formed in the bottom of the pile head of the cast-in-place pile in the circumferential direction, and a wedge is driven into each wedge hole till the pile head of the cast-in-place pile is broken by the wedges; and the broken cast-in-place pile head is hoisted out, and breaking of the cast-in-place pile head is completed. The main reinforcement of the cast-in-place pile head is effectively prevented from being damaged in the breaking process, and the time for breaking the cast-in-place pile head is remarkably prolonged.
本发明公开了一种便于灌注桩桩头破除的施工方法，包括：在灌注桩钢筋笼安装完成且浇筑混凝土之前，在灌注桩桩头待破除段内安装隔离管，隔离管的外径与钢筋笼的内径相匹配，隔离管的长度不小于待破除段的高度，且隔离管的底部与待破除段底部平齐；隔离管安装完成后，向灌注桩钢筋笼内浇筑混凝土至灌注桩钢筋笼顶部，待破除段的隔离管内形成的混凝土为灌注桩桩头；待混凝土强度达到破除要求后，在灌注桩桩头底部沿周向均匀开设若干楔子孔，并在每个楔子孔内打入楔子，直至楔子将灌注桩桩头顶断；将顶断后的灌注桩桩头吊出，完成灌注桩桩头的破除。本发明有效的防止了在破除过程中灌注桩桩头主筋免受损害，显著提高了灌注桩桩头破除的时间。
Construction method convenient for breaking pile head of cast-in-place pile
The construction method comprises the steps that before a cast-in-place pile reinforcement cage is installed and concrete is poured, an isolation pipe is installed in a to-be-broken section of the cast-in-place pile head, the outer diameter of the isolation pipe is matched with the inner diameter of the reinforcement cage, and the length of the isolation pipe is not smaller than the height of the to-be-broken section; the bottom of the isolation pipe is flush with the bottom of the to-be-broken section; after the isolation pipe is installed, concrete is poured into the cast-in-place pile reinforcement cage to the top of the cast-in-place pile reinforcement cage, and the concrete formed in the isolation pipe of the to-be-broken section is a cast-in-place pile head; after the strength of the concrete meets the breaking requirement, a plurality of wedge holes are evenly formed in the bottom of the pile head of the cast-in-place pile in the circumferential direction, and a wedge is driven into each wedge hole till the pile head of the cast-in-place pile is broken by the wedges; and the broken cast-in-place pile head is hoisted out, and breaking of the cast-in-place pile head is completed. The main reinforcement of the cast-in-place pile head is effectively prevented from being damaged in the breaking process, and the time for breaking the cast-in-place pile head is remarkably prolonged.
本发明公开了一种便于灌注桩桩头破除的施工方法，包括：在灌注桩钢筋笼安装完成且浇筑混凝土之前，在灌注桩桩头待破除段内安装隔离管，隔离管的外径与钢筋笼的内径相匹配，隔离管的长度不小于待破除段的高度，且隔离管的底部与待破除段底部平齐；隔离管安装完成后，向灌注桩钢筋笼内浇筑混凝土至灌注桩钢筋笼顶部，待破除段的隔离管内形成的混凝土为灌注桩桩头；待混凝土强度达到破除要求后，在灌注桩桩头底部沿周向均匀开设若干楔子孔，并在每个楔子孔内打入楔子，直至楔子将灌注桩桩头顶断；将顶断后的灌注桩桩头吊出，完成灌注桩桩头的破除。本发明有效的防止了在破除过程中灌注桩桩头主筋免受损害，显著提高了灌注桩桩头破除的时间。
Construction method convenient for breaking pile head of cast-in-place pile
一种便于灌注桩桩头破除的施工方法
SONG RONGGANG (Autor:in) / JI YANPING (Autor:in) / AN XIANMING (Autor:in)
27.05.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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