A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Anti-pulling test method for cast-in-place pile
The invention discloses an anti-pulling test method for a cast-in-place pile, which comprises the following steps: arranging a protective tube in the cast-in-place pile, putting an optical fiber sensor into the protective tube for fixing, and sleeving an exposed area of the optical fiber sensor with a buffer layer for wrapping and fixing; the distributed optical fiber sensors are connected to an optical fiber demodulator, pile body strain data of the far-end cast-in-place pile are monitored in real time, and collected data files are marked according to loading time for later data processing; a load weight is arranged on the bridge deck slab, after arrangement is completed, the Brillouin frequency shift amount of the optical fiber sensor is recorded through the optical fiber demodulator, and the strain value epsilon i of the optical fiber sensor can be obtained; the side friction resistance of the pile body of the cast-in-place pile can be shown in the The method is suitable for measuring and analyzing the side frictional resistance of the pile body of the far-end cast-in-place pile below the cantilever type ramp bridge, the state of the current cast-in-place pile can be known by analyzing the side frictional resistance, and meanwhile a subsequent reinforcing scheme can be guided.
本发明公开了一种用于灌注桩的抗拔测试方法，在灌注桩内设置保护管，将光纤传感器放入保护管内固定，在光纤传感器外露区域套设缓冲层包裹固定；将已布设好的光纤传感器连接至光纤解调仪，实时监测远端灌注桩的桩身应变数据，并根据加载时间将采集的数据文件进行标注，用于后期数据处理；在桥面板上布设负载重物，布置完成后，通过光纤解调仪记录光纤传感器的里渊频移量，可获光纤传感器的应变值εi；灌注桩桩身侧摩阻力可由下式。本申请适用于采用悬臂式匝道桥下方远端灌注桩的桩身侧摩阻力测定分析，通过分析侧摩阻力可知当前灌注桩的状态，同时可以指导后续加固方案。
Anti-pulling test method for cast-in-place pile
The invention discloses an anti-pulling test method for a cast-in-place pile, which comprises the following steps: arranging a protective tube in the cast-in-place pile, putting an optical fiber sensor into the protective tube for fixing, and sleeving an exposed area of the optical fiber sensor with a buffer layer for wrapping and fixing; the distributed optical fiber sensors are connected to an optical fiber demodulator, pile body strain data of the far-end cast-in-place pile are monitored in real time, and collected data files are marked according to loading time for later data processing; a load weight is arranged on the bridge deck slab, after arrangement is completed, the Brillouin frequency shift amount of the optical fiber sensor is recorded through the optical fiber demodulator, and the strain value epsilon i of the optical fiber sensor can be obtained; the side friction resistance of the pile body of the cast-in-place pile can be shown in the The method is suitable for measuring and analyzing the side frictional resistance of the pile body of the far-end cast-in-place pile below the cantilever type ramp bridge, the state of the current cast-in-place pile can be known by analyzing the side frictional resistance, and meanwhile a subsequent reinforcing scheme can be guided.
本发明公开了一种用于灌注桩的抗拔测试方法，在灌注桩内设置保护管，将光纤传感器放入保护管内固定，在光纤传感器外露区域套设缓冲层包裹固定；将已布设好的光纤传感器连接至光纤解调仪，实时监测远端灌注桩的桩身应变数据，并根据加载时间将采集的数据文件进行标注，用于后期数据处理；在桥面板上布设负载重物，布置完成后，通过光纤解调仪记录光纤传感器的里渊频移量，可获光纤传感器的应变值εi；灌注桩桩身侧摩阻力可由下式。本申请适用于采用悬臂式匝道桥下方远端灌注桩的桩身侧摩阻力测定分析，通过分析侧摩阻力可知当前灌注桩的状态，同时可以指导后续加固方案。
Anti-pulling test method for cast-in-place pile
一种用于灌注桩的抗拔测试方法
LI HUI (author) / LI XIAODONG (author) / SUN JIWEI (author) / LI XIANPENG (author) / ZHANG JUNZHAN (author) / YAO ZHENGFEI (author) / QIAO DONGDONG (author) / ZHANG JUNMIN (author) / WANG JINYANG (author) / WANG XIUHUA (author)
2022-05-06
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
Anti-pulling counter-force device for cast-in-place concrete pile
| European Patent Office | 2024
Cast-in-place pile end core-pulling sediment detection device
| European Patent Office | 2020
Anti-pulling bearing force test device for foundation detection anti-pulling pile
| European Patent Office | 2020
Pile foundation anti-pulling test device and test method
| European Patent Office | 2023