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A platform for research: civil engineering, architecture and urbanism
Cast-in-place pile head protection system under complex construction environment and construction method
The invention provides a cast-in-place pile head protection system under a complex construction environment and a construction method.The pile head protection system comprises a front-section protection unit, a middle-section protection unit and a rear-section protection unit, a pile hole is formed in a building foundation pit, the bottom of the building foundation pit is a foundation soil layer, and the top of the building foundation pit is an inter-pile soil layer; a cast-in-place pile is poured in the pile hole, the exposed part of the top of the cast-in-place pile is a pile head body, the bottom of the pile head body is a pile head foundation, the pile head foundation extends upwards and outwards to form bearing platform steel bars distributed in an annular array, the inner sides of the bearing platform steel bars are steel bar inner pile bodies, and the outer sides of the bearing platform steel bars are steel bar outer pile bodies. The protection units are arranged on the front portion, the middle portion and the rear portion, full-process protection of the pile head can be achieved, the construction efficiency and the construction quality of the pile head are guaranteed, the structures of the three protection units are connected and dependent, the whole construction steps are more continuous, and the protection steps are simplified.
本发明提供一种复杂施工环境下的灌注桩桩头防护系统及施工方法，包括所述桩头保护系统包括前段保护单元、中段保护单元以及后段保护单元，建筑基坑内部开设有桩孔，建筑基坑的底部为基础土层、顶部为桩间土层，桩孔内灌注有灌注桩，灌注桩的顶部外露部分为桩头主体，桩头主体的底部为桩头基础，桩头基础向上外伸有环形阵列分布的承台钢筋，承台钢筋的内侧为钢筋内桩体、外侧为钢筋外桩体。本发明通过在前、中、后均布设保护单元，能够实现对于桩头的全流程保护，保证桩头的施工效率以及施工质量，三段保护单元的结构相互联系、依存，使得整个施工步骤更为连续，简化保护步骤。
Cast-in-place pile head protection system under complex construction environment and construction method
The invention provides a cast-in-place pile head protection system under a complex construction environment and a construction method.The pile head protection system comprises a front-section protection unit, a middle-section protection unit and a rear-section protection unit, a pile hole is formed in a building foundation pit, the bottom of the building foundation pit is a foundation soil layer, and the top of the building foundation pit is an inter-pile soil layer; a cast-in-place pile is poured in the pile hole, the exposed part of the top of the cast-in-place pile is a pile head body, the bottom of the pile head body is a pile head foundation, the pile head foundation extends upwards and outwards to form bearing platform steel bars distributed in an annular array, the inner sides of the bearing platform steel bars are steel bar inner pile bodies, and the outer sides of the bearing platform steel bars are steel bar outer pile bodies. The protection units are arranged on the front portion, the middle portion and the rear portion, full-process protection of the pile head can be achieved, the construction efficiency and the construction quality of the pile head are guaranteed, the structures of the three protection units are connected and dependent, the whole construction steps are more continuous, and the protection steps are simplified.
本发明提供一种复杂施工环境下的灌注桩桩头防护系统及施工方法，包括所述桩头保护系统包括前段保护单元、中段保护单元以及后段保护单元，建筑基坑内部开设有桩孔，建筑基坑的底部为基础土层、顶部为桩间土层，桩孔内灌注有灌注桩，灌注桩的顶部外露部分为桩头主体，桩头主体的底部为桩头基础，桩头基础向上外伸有环形阵列分布的承台钢筋，承台钢筋的内侧为钢筋内桩体、外侧为钢筋外桩体。本发明通过在前、中、后均布设保护单元，能够实现对于桩头的全流程保护，保证桩头的施工效率以及施工质量，三段保护单元的结构相互联系、依存，使得整个施工步骤更为连续，简化保护步骤。
Cast-in-place pile head protection system under complex construction environment and construction method
一种复杂施工环境下的灌注桩桩头防护系统及施工方法
LIN JIAN (author) / HUANG YIRONG (author) / SONG ZHIQIANG (author)
2023-04-04
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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