A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction method for pile foundation in karst area
The invention relates to the technical field of pile foundation construction, and particularly discloses a karst area pile foundation construction method which comprises the following steps: pretreating a foundation of a karst ground and measuring and placing a preset pile position; a pile casing is buried to the preset pile position, and the preset pile position is rechecked; rotary drilling is conducted on the preset pile position, and a finished hole is formed after the formed hole is processed; and a reinforcement cage is placed in the end hole, a guide pipe storage hopper is installed, concrete is poured, the concrete and the reinforcement cage form a pile body after the concrete is condensed, and the pile casing is pulled out. The pile casing is embedded in the preset pile position to form a stable and reliable protection wall, the problems of hole collapse, diameter expansion (shrinkage) and the like are effectively prevented, uneven settlement of a building in the later period is avoided, a reinforcement cage is placed in a hole, concrete is poured through the guide pipe storage hopper to form a pile foundation stable in structure and uniform in hole diameter, and the construction efficiency is improved. The karst area pile foundation construction method has the advantages of being high in construction efficiency and good in pile foundation quality.
本发明涉及桩基施工技术领域，具体公开了一种岩溶地区桩基施工方法，包括以下步骤：对岩溶地面的地基进行预处理并测放预设桩位；埋设护筒至所述预设桩位，对所述预设桩位进行复核；在所述预设桩位进行旋挖钻进，对成孔进行处理后形成终孔；在所述终孔内下放钢筋笼，安设导管贮料斗并灌注混凝土，待混凝土凝结后与所述钢筋笼形成桩身，将所述护筒拔出。本发明通过在预设桩位上埋设护筒，以形成稳定可靠的护壁，有效防止了塌孔、扩(缩)径等问题，以避免后期建筑物出现不均匀沉降，在孔内下放钢筋笼，并通过导管贮料斗灌注混凝土以形成结构稳定、孔径均匀的桩基，本发明的岩溶地区桩基施工方法具有施工效率高、桩基质量好的优点。
Construction method for pile foundation in karst area
The invention relates to the technical field of pile foundation construction, and particularly discloses a karst area pile foundation construction method which comprises the following steps: pretreating a foundation of a karst ground and measuring and placing a preset pile position; a pile casing is buried to the preset pile position, and the preset pile position is rechecked; rotary drilling is conducted on the preset pile position, and a finished hole is formed after the formed hole is processed; and a reinforcement cage is placed in the end hole, a guide pipe storage hopper is installed, concrete is poured, the concrete and the reinforcement cage form a pile body after the concrete is condensed, and the pile casing is pulled out. The pile casing is embedded in the preset pile position to form a stable and reliable protection wall, the problems of hole collapse, diameter expansion (shrinkage) and the like are effectively prevented, uneven settlement of a building in the later period is avoided, a reinforcement cage is placed in a hole, concrete is poured through the guide pipe storage hopper to form a pile foundation stable in structure and uniform in hole diameter, and the construction efficiency is improved. The karst area pile foundation construction method has the advantages of being high in construction efficiency and good in pile foundation quality.
本发明涉及桩基施工技术领域，具体公开了一种岩溶地区桩基施工方法，包括以下步骤：对岩溶地面的地基进行预处理并测放预设桩位；埋设护筒至所述预设桩位，对所述预设桩位进行复核；在所述预设桩位进行旋挖钻进，对成孔进行处理后形成终孔；在所述终孔内下放钢筋笼，安设导管贮料斗并灌注混凝土，待混凝土凝结后与所述钢筋笼形成桩身，将所述护筒拔出。本发明通过在预设桩位上埋设护筒，以形成稳定可靠的护壁，有效防止了塌孔、扩(缩)径等问题，以避免后期建筑物出现不均匀沉降，在孔内下放钢筋笼，并通过导管贮料斗灌注混凝土以形成结构稳定、孔径均匀的桩基，本发明的岩溶地区桩基施工方法具有施工效率高、桩基质量好的优点。
Construction method for pile foundation in karst area
一种岩溶地区桩基施工方法
LI MINGTAI (author) / TANG RUI (author) / WU ZHILIN (author) / LI JIAMING (author) / QIN HONGWEI (author) / KUAI YUEHONG (author)
2022-12-30
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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