Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Large-diameter cast-in-place concrete pile defect treatment reinforcing structure and construction method
The invention relates to a large-diameter cast-in-place concrete pile defect treatment reinforcing structure and a construction method. The large-diameter cast-in-place concrete pile defect treatmentreinforcing structure comprises defective large-diameter cast-in-place concrete piles, the defective large-diameter cast-in-place concrete piles comprise pile body defect sections, pile body punchingexcavation side boundaries and pile body punching excavation bottom boundaries are determined according to design requirements, after pile bodies are punched and excavated, core piles subjected to refilling treatment are arranged, core pile longitudinal bars and core pile stirrups are arranged on the core piles according to design requirements, and high-pressure jet grouting reinforcement sectionsare arranged in a certain range of the periphery of the pile body defect sections to form a waterproof curtain and an enclosure structure. Compared with the prior art, the original pile does not needwaste treatment, the construction period is short, the influence on the overall engineering progress is small, and the treatment cost is controllable; on the basis that an annular reinforced concretestructure outside the original pile body is complete, a core pile processing mode is additionally adopted, the hooping effect can be formed, and the bearing capacity of the pile body is improved; andthe mode of thoroughly chiseling away part of concrete of the defect sections is obvious in treatment effect, and no defect risk is left.
本发明涉及一种大直径混凝土灌注桩缺陷处理的加固结构及施工方法，包括：有缺陷的大直径混凝土灌注桩，有缺陷的大直径混凝土灌注桩含有桩身缺陷段，根据设计要求确定桩身凿孔开挖侧边界和桩身凿孔开挖底边界，桩身凿孔开挖后设置重新灌注处理后的芯桩，芯桩根据设计要求配置芯桩纵筋和芯桩箍筋，桩身缺陷段周边一定范围设置高压旋喷注浆加固段，形成止水帷幕和围护结构。与现有技术相比，本发明原桩不需废弃处理，工期较短，对总体工程进度影响小，处理费用可控；在原有桩身外部环状钢筋混凝土结构完整的基础上采取增设芯桩处理方式，可以形成环箍效应，提高桩身承载力；对缺陷段部分混凝土彻底凿除的方式，处理效果明显，无遗留缺陷风险。
Large-diameter cast-in-place concrete pile defect treatment reinforcing structure and construction method
The invention relates to a large-diameter cast-in-place concrete pile defect treatment reinforcing structure and a construction method. The large-diameter cast-in-place concrete pile defect treatmentreinforcing structure comprises defective large-diameter cast-in-place concrete piles, the defective large-diameter cast-in-place concrete piles comprise pile body defect sections, pile body punchingexcavation side boundaries and pile body punching excavation bottom boundaries are determined according to design requirements, after pile bodies are punched and excavated, core piles subjected to refilling treatment are arranged, core pile longitudinal bars and core pile stirrups are arranged on the core piles according to design requirements, and high-pressure jet grouting reinforcement sectionsare arranged in a certain range of the periphery of the pile body defect sections to form a waterproof curtain and an enclosure structure. Compared with the prior art, the original pile does not needwaste treatment, the construction period is short, the influence on the overall engineering progress is small, and the treatment cost is controllable; on the basis that an annular reinforced concretestructure outside the original pile body is complete, a core pile processing mode is additionally adopted, the hooping effect can be formed, and the bearing capacity of the pile body is improved; andthe mode of thoroughly chiseling away part of concrete of the defect sections is obvious in treatment effect, and no defect risk is left.
本发明涉及一种大直径混凝土灌注桩缺陷处理的加固结构及施工方法，包括：有缺陷的大直径混凝土灌注桩，有缺陷的大直径混凝土灌注桩含有桩身缺陷段，根据设计要求确定桩身凿孔开挖侧边界和桩身凿孔开挖底边界，桩身凿孔开挖后设置重新灌注处理后的芯桩，芯桩根据设计要求配置芯桩纵筋和芯桩箍筋，桩身缺陷段周边一定范围设置高压旋喷注浆加固段，形成止水帷幕和围护结构。与现有技术相比，本发明原桩不需废弃处理，工期较短，对总体工程进度影响小，处理费用可控；在原有桩身外部环状钢筋混凝土结构完整的基础上采取增设芯桩处理方式，可以形成环箍效应，提高桩身承载力；对缺陷段部分混凝土彻底凿除的方式，处理效果明显，无遗留缺陷风险。
Large-diameter cast-in-place concrete pile defect treatment reinforcing structure and construction method
大直径混凝土灌注桩缺陷处理的加固结构及施工方法
WU YINGDONG (Autor:in) / WANG YUSONG (Autor:in) / HU DAMIN (Autor:in) / YAO KAIMING (Autor:in)
26.02.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
Construction method for reinforcing local slag inclusion defect of cast-in-place concrete pile
| Europäisches Patentamt | 2022
| Europäisches Patentamt | 2021
Large-diameter super-long cast-in-place pile construction method
| Europäisches Patentamt | 2021
CAST-IN-PLACE CONCRETE PILE CONSTRUCTION METHOD AND CAST-IN-PLACE CONCRETE PILE
| Europäisches Patentamt | 2019