A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Large-diameter pile laitance over-grouting pile head chiseling method based on separated structure
The invention discloses a large-diameter pile laitance over-grouting pile head chiseling-away method based on a separated structure. A pile head steel casing and a reserved pile foundation steel casing are involved in the large-diameter pile laitance over-grouting pile head chiseling-away method. The method has the beneficial effects that the pile head and main body separated type structure is adopted in the pile foundation steel casing, the pile head steel casing and the pile head concrete can be directly lifted away when the pile head is chiseled away, and the work of cutting the steel casing, stripping the concrete and the like is omitted. The elastic wrapping material and the sleeve on the main reinforcement and the sounding pipe of the pile head part can effectively prevent concrete from holding and wrapping the main reinforcement and the sounding pipe of the pile head part, the pile head steel casing and the pile head concrete can be directly lifted away as a whole after the cast-in-place pile processed through the method is formed, a large amount of manpower and material resources are saved, the main reinforcement can be effectively protected, and the service life of the cast-in-place pile is prolonged. And the problem that the main reinforcements are cut off by mistake or damaged in the concrete cutting, chiseling and stripping processes is solved. Meanwhile, the recoverable pile head steel casing is adopted and can be repeatedly used at the pile position with the same pile diameter, the construction cost can be effectively reduced, and the construction efficiency can be effectively improved.
本发明公开了一种基于分离式结构的大直径桩浮浆超灌桩头凿除方法，包括桩头钢护筒和保留桩基钢护筒。本发明的有益效果是：桩基钢护筒采取桩头与主体分离式结构，可以在桩头凿除时直接吊离桩头钢护筒和桩头混凝土，省去钢护筒的切割与混凝土剥离等工作。桩头部分主筋和声测管上的弹性包裹材料和套管可以有效隔断混凝土对桩头主筋和声测管的握裹，经此法处理的灌注桩在成桩后可将桩头钢护筒和桩头混凝土作为一个整体直接吊离，节约了大量人力物力，并能有效保护主筋，避免了切割、凿除、剥除混凝土过程中主筋误切断或受损问题。同时，采用可回收的桩头钢护筒，在相同桩径的桩位处可重复使用，能有效降低施工成本和提高施工效率。
Large-diameter pile laitance over-grouting pile head chiseling method based on separated structure
The invention discloses a large-diameter pile laitance over-grouting pile head chiseling-away method based on a separated structure. A pile head steel casing and a reserved pile foundation steel casing are involved in the large-diameter pile laitance over-grouting pile head chiseling-away method. The method has the beneficial effects that the pile head and main body separated type structure is adopted in the pile foundation steel casing, the pile head steel casing and the pile head concrete can be directly lifted away when the pile head is chiseled away, and the work of cutting the steel casing, stripping the concrete and the like is omitted. The elastic wrapping material and the sleeve on the main reinforcement and the sounding pipe of the pile head part can effectively prevent concrete from holding and wrapping the main reinforcement and the sounding pipe of the pile head part, the pile head steel casing and the pile head concrete can be directly lifted away as a whole after the cast-in-place pile processed through the method is formed, a large amount of manpower and material resources are saved, the main reinforcement can be effectively protected, and the service life of the cast-in-place pile is prolonged. And the problem that the main reinforcements are cut off by mistake or damaged in the concrete cutting, chiseling and stripping processes is solved. Meanwhile, the recoverable pile head steel casing is adopted and can be repeatedly used at the pile position with the same pile diameter, the construction cost can be effectively reduced, and the construction efficiency can be effectively improved.
本发明公开了一种基于分离式结构的大直径桩浮浆超灌桩头凿除方法，包括桩头钢护筒和保留桩基钢护筒。本发明的有益效果是：桩基钢护筒采取桩头与主体分离式结构，可以在桩头凿除时直接吊离桩头钢护筒和桩头混凝土，省去钢护筒的切割与混凝土剥离等工作。桩头部分主筋和声测管上的弹性包裹材料和套管可以有效隔断混凝土对桩头主筋和声测管的握裹，经此法处理的灌注桩在成桩后可将桩头钢护筒和桩头混凝土作为一个整体直接吊离，节约了大量人力物力，并能有效保护主筋，避免了切割、凿除、剥除混凝土过程中主筋误切断或受损问题。同时，采用可回收的桩头钢护筒，在相同桩径的桩位处可重复使用，能有效降低施工成本和提高施工效率。
Large-diameter pile laitance over-grouting pile head chiseling method based on separated structure
一种基于分离式结构的大直径桩浮浆超灌桩头凿除方法
LYU XILIN (author) / ZHANG JIARUI (author)
2023-06-23
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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