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Permanent and temporary combined foundation pit supporting structure with engineering piles serving as supporting piles and construction method of permanent and temporary combined foundation pit supporting structure
The permanent and temporary combined foundation pit supporting structure comprises a plurality of reinforced engineering piles arranged in the circumferential direction of a foundation pit, and the pile diameter, the concrete grade and the steel bar diameter of each reinforced engineering pile are larger than the pile diameter, the concrete grade and the steel bar diameter of an original engineering pile of the foundation pit correspondingly; a top beam is formed on the tops of the multiple reinforced engineering piles in a pouring mode, and the bottom ends of the reinforced engineering piles are inserted into the bearing stratum. The first concrete support is supported between the top beams on the two opposite sides of the foundation pit; the multiple steel support axial force compensation systems are vertically arranged, and the steel support axial force compensation systems are arranged below the first concrete support and support the reinforced engineering piles on the two opposite sides of the foundation pit; the stress-strain monitor is mounted on the steel support axial force compensation system; and the controller is connected to the steel support axial force compensation system and the stress-strain monitor. The problem that the supporting pile of the foundation pit is idle after earthwork backfilling of the foundation pit is solved.
本发明公开了一种工程桩兼做支护桩的永临结合基坑支护结构及其施工方法，包括：沿基坑的周向方向设置的多根加强型工程桩，加强型工程桩的桩径、混凝土等级与钢筋直径分别大于基坑的原工程桩的桩径、混凝土等级与钢筋直径，多根加强型工程桩的顶部浇筑形成有冠梁，加强型工程桩的底端插入持力层中；首道混凝土支撑，支撑于基坑的相对两侧的冠梁之间；竖向设置的多道钢支撑轴力补偿系统，钢支撑轴力补偿系统设置于首道混凝土支撑的下方且支撑于基坑的相对两侧的加强型工程桩；应力应变监测器，安装于钢支撑轴力补偿系统；控制器，连接于钢支撑轴力补偿系统和应力应变监测器。本发明解决了基坑的支护桩在基坑土方回填后就别闲置的问题。
Permanent and temporary combined foundation pit supporting structure with engineering piles serving as supporting piles and construction method of permanent and temporary combined foundation pit supporting structure
The permanent and temporary combined foundation pit supporting structure comprises a plurality of reinforced engineering piles arranged in the circumferential direction of a foundation pit, and the pile diameter, the concrete grade and the steel bar diameter of each reinforced engineering pile are larger than the pile diameter, the concrete grade and the steel bar diameter of an original engineering pile of the foundation pit correspondingly; a top beam is formed on the tops of the multiple reinforced engineering piles in a pouring mode, and the bottom ends of the reinforced engineering piles are inserted into the bearing stratum. The first concrete support is supported between the top beams on the two opposite sides of the foundation pit; the multiple steel support axial force compensation systems are vertically arranged, and the steel support axial force compensation systems are arranged below the first concrete support and support the reinforced engineering piles on the two opposite sides of the foundation pit; the stress-strain monitor is mounted on the steel support axial force compensation system; and the controller is connected to the steel support axial force compensation system and the stress-strain monitor. The problem that the supporting pile of the foundation pit is idle after earthwork backfilling of the foundation pit is solved.
本发明公开了一种工程桩兼做支护桩的永临结合基坑支护结构及其施工方法，包括：沿基坑的周向方向设置的多根加强型工程桩，加强型工程桩的桩径、混凝土等级与钢筋直径分别大于基坑的原工程桩的桩径、混凝土等级与钢筋直径，多根加强型工程桩的顶部浇筑形成有冠梁，加强型工程桩的底端插入持力层中；首道混凝土支撑，支撑于基坑的相对两侧的冠梁之间；竖向设置的多道钢支撑轴力补偿系统，钢支撑轴力补偿系统设置于首道混凝土支撑的下方且支撑于基坑的相对两侧的加强型工程桩；应力应变监测器，安装于钢支撑轴力补偿系统；控制器，连接于钢支撑轴力补偿系统和应力应变监测器。本发明解决了基坑的支护桩在基坑土方回填后就别闲置的问题。
Permanent and temporary combined foundation pit supporting structure with engineering piles serving as supporting piles and construction method of permanent and temporary combined foundation pit supporting structure
工程桩兼做支护桩的永临结合基坑支护结构及其施工方法
XU QIANQIAN (author) / LUAN WEI (author) / SUN TAO (author) / KURISAWA (author) / XIANG ZHENBO (author) / WANG WENWEI (author)
2024-02-09
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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