Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Variable-cross-section soil-squeezing prefabricated tubular pile and construction technology
The invention belongs to the technical field of geotechnical engineering and constructional engineering, and particularly relates to a variable-cross-section soil-squeezing prefabricated tubular pile and a construction technology. The variable-cross-section soil-squeezing prefabricated tubular pile comprises a uniform-cross-section prefabricated pile internally wrapped with longitudinal bars and variable-cross-section concrete wrapping the outer side of the upper portion of the uniform-cross-section prefabricated pile; the variable cross-section precast pile is jointly formed by the variable cross-section concrete and the upper portion of the uniform cross-section precast pile wrapped by the variable cross-section concrete, the variable cross-section precast pile is in an inverted circular truncated cone shape, a vertical face is taken by the variable cross-section precast pile, and an included angle is formed at the intersection of the bevel edge and the vertical edge of the variable cross-section precast pile in the vertical face; the construction technology of the variable-cross-section soil-squeezing prefabricated tubular pile comprises the following steps that (1) the setting-out positioning pile is measured; the construction method comprises the following steps of (1) construction, (2) stacking and hoisting, (3) pile sinking through hammering, (4) pile conveying, (5) pile testing and (6) reinforced concrete pile cap pouring. The problems that in the prior art, upper soil layer liquefaction and collapsibility treatment cannot meet the design requirements, and lower soil layers are treated excessively are solved, the bearing capacity requirement is guaranteed, and economic benefits are improved.
本发明属于岩土工程、建筑工程技术领域，具体涉及一种变截面挤土预制管桩及施工工艺，包括内部包裹有纵筋的等截面预制桩和等截面预制桩上部外侧包裹着的变截面混凝土，变截面混凝土与其所包裹的等截面预制桩上部共同形成的变截面预制桩，变截面预制桩呈倒立的圆台状，变截面预制桩取一竖直面，竖直面中变截面预制桩的斜边与竖直边交叉处形成夹角；该变截面挤土预制管桩的施工工艺包括以下步骤：1）测量放线定位桩；2）堆放及起吊；3）锤击沉桩；4）送桩；5）验桩；6）浇筑钢筋混凝土桩帽。本发明解决了现有技术上部土层液化、湿陷性处理不满足设计要求，下部土层又处理过度的问题，保证了承载力要求，提高了经济效益。
Variable-cross-section soil-squeezing prefabricated tubular pile and construction technology
The invention belongs to the technical field of geotechnical engineering and constructional engineering, and particularly relates to a variable-cross-section soil-squeezing prefabricated tubular pile and a construction technology. The variable-cross-section soil-squeezing prefabricated tubular pile comprises a uniform-cross-section prefabricated pile internally wrapped with longitudinal bars and variable-cross-section concrete wrapping the outer side of the upper portion of the uniform-cross-section prefabricated pile; the variable cross-section precast pile is jointly formed by the variable cross-section concrete and the upper portion of the uniform cross-section precast pile wrapped by the variable cross-section concrete, the variable cross-section precast pile is in an inverted circular truncated cone shape, a vertical face is taken by the variable cross-section precast pile, and an included angle is formed at the intersection of the bevel edge and the vertical edge of the variable cross-section precast pile in the vertical face; the construction technology of the variable-cross-section soil-squeezing prefabricated tubular pile comprises the following steps that (1) the setting-out positioning pile is measured; the construction method comprises the following steps of (1) construction, (2) stacking and hoisting, (3) pile sinking through hammering, (4) pile conveying, (5) pile testing and (6) reinforced concrete pile cap pouring. The problems that in the prior art, upper soil layer liquefaction and collapsibility treatment cannot meet the design requirements, and lower soil layers are treated excessively are solved, the bearing capacity requirement is guaranteed, and economic benefits are improved.
本发明属于岩土工程、建筑工程技术领域，具体涉及一种变截面挤土预制管桩及施工工艺，包括内部包裹有纵筋的等截面预制桩和等截面预制桩上部外侧包裹着的变截面混凝土，变截面混凝土与其所包裹的等截面预制桩上部共同形成的变截面预制桩，变截面预制桩呈倒立的圆台状，变截面预制桩取一竖直面，竖直面中变截面预制桩的斜边与竖直边交叉处形成夹角；该变截面挤土预制管桩的施工工艺包括以下步骤：1）测量放线定位桩；2）堆放及起吊；3）锤击沉桩；4）送桩；5）验桩；6）浇筑钢筋混凝土桩帽。本发明解决了现有技术上部土层液化、湿陷性处理不满足设计要求，下部土层又处理过度的问题，保证了承载力要求，提高了经济效益。
Variable-cross-section soil-squeezing prefabricated tubular pile and construction technology
一种变截面挤土预制管桩及施工工艺
ZHANG MING (Autor:in) / ZHANG JIANSHE (Autor:in) / LIU YULING (Autor:in) / ZHANG BO (Autor:in) / LIU YANG (Autor:in) / ZHU HUIQIANG (Autor:in) / JIA MINGZHAO (Autor:in) / LI HAO (Autor:in) / CHEN JUNWEI (Autor:in) / JI PANPAN (Autor:in)
01.11.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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