A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Pile foundation structure and method suitable for stacked tunnel pile foundation underpinning
The invention discloses a pile foundation structure and method suitable for stacked tunnel pile foundation underpinning, and belongs to the technical field of pile foundation underpinning. The pile foundation structure comprises an underpinning pile, and the top of the underpinning pile is fixedly connected with an underpinning girder; the underpinning pile is divided into a head section, a middle section and a tail section from top to bottom, reinforcement cages are arranged on the head section and the middle section of the underpinning pile, and a plurality of bottom-through main reinforcements are arranged on the tail section to support the reinforcement cages; the underpinning girder is provided with underpinning girder main reinforcements, the underpinning girder main reinforcements are arranged at the bottom and the top of the underpinning girder, underpinning girder distribution reinforcements are arranged between the bottom and the top of the underpinning girder, and the underpinning girder main reinforcements and the underpinning girder distribution reinforcements are bound through underpinning girder tie bars. A finer underpinning pile reinforcement scheme can be provided for a large-disturbance shield tunnel to penetrate through existing bridge piles, and it is guaranteed that the structural strength is high, and the connectivity between components is high.
本发明公开了一种适用于叠落隧道桩基托换的桩基础结构及方法，属于桩基托换技术领域，包括托换桩，托换桩顶部与托换大梁固定连接；所述托换桩由上至下分为首段、中段和尾段，托换桩在首段和中段设有钢筋笼，尾段设置多根通底主筋以支撑钢筋笼；所述托换大梁设有托换大梁主筋，托换大梁主筋布置于托换大梁梁底和梁顶，托换大梁梁底和梁顶之间布置托换大梁分布筋，托换大梁主筋和托换大梁分布筋通过托换大梁拉筋绑扎。其能够为大扰动盾构隧道穿越既有桥桩提供更精细的托换桩配筋方案，且保证该结构强度高，构件与构件之间连接性强。
Pile foundation structure and method suitable for stacked tunnel pile foundation underpinning
The invention discloses a pile foundation structure and method suitable for stacked tunnel pile foundation underpinning, and belongs to the technical field of pile foundation underpinning. The pile foundation structure comprises an underpinning pile, and the top of the underpinning pile is fixedly connected with an underpinning girder; the underpinning pile is divided into a head section, a middle section and a tail section from top to bottom, reinforcement cages are arranged on the head section and the middle section of the underpinning pile, and a plurality of bottom-through main reinforcements are arranged on the tail section to support the reinforcement cages; the underpinning girder is provided with underpinning girder main reinforcements, the underpinning girder main reinforcements are arranged at the bottom and the top of the underpinning girder, underpinning girder distribution reinforcements are arranged between the bottom and the top of the underpinning girder, and the underpinning girder main reinforcements and the underpinning girder distribution reinforcements are bound through underpinning girder tie bars. A finer underpinning pile reinforcement scheme can be provided for a large-disturbance shield tunnel to penetrate through existing bridge piles, and it is guaranteed that the structural strength is high, and the connectivity between components is high.
本发明公开了一种适用于叠落隧道桩基托换的桩基础结构及方法，属于桩基托换技术领域，包括托换桩，托换桩顶部与托换大梁固定连接；所述托换桩由上至下分为首段、中段和尾段，托换桩在首段和中段设有钢筋笼，尾段设置多根通底主筋以支撑钢筋笼；所述托换大梁设有托换大梁主筋，托换大梁主筋布置于托换大梁梁底和梁顶，托换大梁梁底和梁顶之间布置托换大梁分布筋，托换大梁主筋和托换大梁分布筋通过托换大梁拉筋绑扎。其能够为大扰动盾构隧道穿越既有桥桩提供更精细的托换桩配筋方案，且保证该结构强度高，构件与构件之间连接性强。
Pile foundation structure and method suitable for stacked tunnel pile foundation underpinning
一种适用于叠落隧道桩基托换的桩基础结构及方法
DING WANTAO (author) / WEN YIRAN (author) / CAO KAI (author) / LIU BIN (author) / ZHANG FENGKAI (author) / ZHANG QI (author) / LIU YUTING (author) / XU TIANJING (author) / HUANG XINGXING (author)
2023-04-11
Patent
Electronic Resource
Chinese
| European Patent Office | 2021
Building pile foundation underpinning structure and underpinning method thereof
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