A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Self retaining wall large diameter concrete hollow pipe column foundation
The invention discloses a self retaining wall large diameter concrete hollow pipe column foundation. The self retaining wall large diameter concrete hollow pipe column foundation comprises an annulardense mesh steel cage skeleton and an underwater annular retaining wall. The annular dense mesh steel cage skeleton is made by inner and outer layer longitudinal main reinforcements, inner and outer layer circumferential stirrups, inner and outer layer circumferential stiffening reinforcements, a radial reinforcement, inner and outer layer positioning reinforcements and inner and outer layer annular dense meshes in a factory or in the field. The underwater annular retaining wall is formed by underwater non-separated self-compacting solid speed condensed concrete pouring in gaps between the outer layer annular dense mesh and the borehole wall. When a pile body is poured, the stability of hole wall soil is maintained through the underwater annular retaining wall structure so as to ensure theslag cleaning quality at the bottom of a borehole and the forming quality of pile body concrete; and large external formwork is not required in pile body casting, the pouring and forming of the pilebody can be completed by only relying on the self structure and a light inner film, the problems of large formwork production, lifting, releasing and recycling and the like are solved, and the projectcost is greatly reduced.
本发明公开了一种自护壁大直径混凝土空心管柱基础，包括环形密致网钢筋笼骨架和水下环形护壁，环形密致网钢筋笼骨架由内外层纵向主筋、内外层环向箍筋、内外层环向加劲筋、径向筋、内外层定位筋和内外层环形密制网在工厂或现场绑扎制作；水下环形护壁由水下不分离自密实速凝混凝土浇筑在外层环形密制网与钻孔孔壁之间的间隙中形成。桩身浇筑时，通过水下环形护壁构造维护孔壁土体的稳定，从而保证钻孔底部清渣质量和桩身混凝土的成型质量；且桩身浇筑中无需外用大型模板，仅依靠自身结构和轻型内膜即可完成桩身浇筑成型，解决了大型模板制作、吊放和回收等难题，大大降低了工程造价。
Self retaining wall large diameter concrete hollow pipe column foundation
The invention discloses a self retaining wall large diameter concrete hollow pipe column foundation. The self retaining wall large diameter concrete hollow pipe column foundation comprises an annulardense mesh steel cage skeleton and an underwater annular retaining wall. The annular dense mesh steel cage skeleton is made by inner and outer layer longitudinal main reinforcements, inner and outer layer circumferential stirrups, inner and outer layer circumferential stiffening reinforcements, a radial reinforcement, inner and outer layer positioning reinforcements and inner and outer layer annular dense meshes in a factory or in the field. The underwater annular retaining wall is formed by underwater non-separated self-compacting solid speed condensed concrete pouring in gaps between the outer layer annular dense mesh and the borehole wall. When a pile body is poured, the stability of hole wall soil is maintained through the underwater annular retaining wall structure so as to ensure theslag cleaning quality at the bottom of a borehole and the forming quality of pile body concrete; and large external formwork is not required in pile body casting, the pouring and forming of the pilebody can be completed by only relying on the self structure and a light inner film, the problems of large formwork production, lifting, releasing and recycling and the like are solved, and the projectcost is greatly reduced.
本发明公开了一种自护壁大直径混凝土空心管柱基础，包括环形密致网钢筋笼骨架和水下环形护壁，环形密致网钢筋笼骨架由内外层纵向主筋、内外层环向箍筋、内外层环向加劲筋、径向筋、内外层定位筋和内外层环形密制网在工厂或现场绑扎制作；水下环形护壁由水下不分离自密实速凝混凝土浇筑在外层环形密制网与钻孔孔壁之间的间隙中形成。桩身浇筑时，通过水下环形护壁构造维护孔壁土体的稳定，从而保证钻孔底部清渣质量和桩身混凝土的成型质量；且桩身浇筑中无需外用大型模板，仅依靠自身结构和轻型内膜即可完成桩身浇筑成型，解决了大型模板制作、吊放和回收等难题，大大降低了工程造价。
Self retaining wall large diameter concrete hollow pipe column foundation
一种自护壁大直径混凝土空心管柱基础
YIN YONGGAO (author) / YU QIJUN (author) / LI JIANLUAN (author) / LYU JIANGGUO (author) / YANG DAHAI (author) / WU PINGPING (author) / TANG GUOXI (author) / ZHANG ZHENHUA (author) / DOU WEI (author) / FANG ZHENGDONG (author)
2020-10-02
Patent
Electronic Resource
Chinese
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