A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Reinforcing method for existing building pile foundation
The invention provides a reinforcing method for an existing building pile foundation, and belongs to the technical field of building foundation reinforcing. The reinforcing process comprises the steps that a small amount of soil is taken out below the existing pile foundation bearing platform; the prefabricated bearing platform is jacked to the lower preset position of the existing pile foundation bearing platform in place; formworks are erected at the positions of the cast-in-place bearing platform and the ring beam, pile pressing hole positions are arranged, anchor rods are embedded, concrete is poured, a counter-force frame is installed, and anchor rod static pressure piles are pressed; and gaps at the bottom of the bearing platform are backfilled and compacted by sandy soil. According to the existing building pile foundation, the existing pile foundation is underpinned through a structural system formed by the prefabricated bearing platform, the cast-in-place bearing platform, the anchor rod static pressure pile and the ring beam, and the multi-pile independent foundation can be reinforced under the construction condition that the clearance in an existing building is low.
本申请提供一种针对既有建筑桩基的加固方法，属于建筑基础加固技术领域。加固过程为：在既有桩基承台下掏出少量的土体；将预制承台顶至既有桩基承台下预定位置就位；在现浇承台和环梁位置支模板、布置压桩孔位、埋设锚杆，浇筑混凝土，安装反力架，压锚杆静压桩；承台底部有空隙处采用沙土回填密实。针对既有建筑桩基础，本发明利用预制承台、现浇承台、锚杆静压桩以及环梁形成的结构体系托换既有桩基，可在既有建筑内部净空较低施工条件下加固多桩独立基础。
Reinforcing method for existing building pile foundation
The invention provides a reinforcing method for an existing building pile foundation, and belongs to the technical field of building foundation reinforcing. The reinforcing process comprises the steps that a small amount of soil is taken out below the existing pile foundation bearing platform; the prefabricated bearing platform is jacked to the lower preset position of the existing pile foundation bearing platform in place; formworks are erected at the positions of the cast-in-place bearing platform and the ring beam, pile pressing hole positions are arranged, anchor rods are embedded, concrete is poured, a counter-force frame is installed, and anchor rod static pressure piles are pressed; and gaps at the bottom of the bearing platform are backfilled and compacted by sandy soil. According to the existing building pile foundation, the existing pile foundation is underpinned through a structural system formed by the prefabricated bearing platform, the cast-in-place bearing platform, the anchor rod static pressure pile and the ring beam, and the multi-pile independent foundation can be reinforced under the construction condition that the clearance in an existing building is low.
本申请提供一种针对既有建筑桩基的加固方法，属于建筑基础加固技术领域。加固过程为：在既有桩基承台下掏出少量的土体；将预制承台顶至既有桩基承台下预定位置就位；在现浇承台和环梁位置支模板、布置压桩孔位、埋设锚杆，浇筑混凝土，安装反力架，压锚杆静压桩；承台底部有空隙处采用沙土回填密实。针对既有建筑桩基础，本发明利用预制承台、现浇承台、锚杆静压桩以及环梁形成的结构体系托换既有桩基，可在既有建筑内部净空较低施工条件下加固多桩独立基础。
Reinforcing method for existing building pile foundation
一种针对既有建筑桩基的加固方法
LOU RONG (author) / QIAN CHAO (author) / ZHOU WEIDONG (author) / ZHANG YIMIN (author) / LUO WEI (author) / HUANG JING'ER (author) / ZHANG JIE (author)
2023-06-13
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
| European Patent Office | 2024