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A platform for research: civil engineering, architecture and urbanism
Comprehensive pile foundation detection method based on unloading point method
The invention discloses a comprehensive pile foundation detection method based on an unloading point method. The comprehensive pile foundation detection method based on the unloading point method comprises the steps that firstly the pile foundation detection is carried out on a detected foundation pile through employing a low-strain foundation pile detection technology, the preliminary judgment iscarried out on the integrity of the detected pile foundation, and a detected pile foundation disease position is given; then, a high-strain foundation pile detection technology and the unloading point method foundation pile detection technology based on rapid loading method pile foundation equipment are adopted for conducting pile foundation detection on the detected foundation pile; p-y curves are obtained and compared, and the bearing capacity of the pile foundation is comprehensively obtained; the displacement time-history curve, the acceleration time-history curve, the force time-historycurve and the force traveling wave curve which are obtained through detection are compared with the low-strain detection result of the detected pile foundation, and the disease type at the disease position is obtained through analysis, so that the pile foundation bearing capacity detection precision is improved, and meanwhile, a basis is provided for judging the specific type of pile foundation diseases.
本发明公开了一种基于卸载点法的桩基综合检测方法，该法先利用低应变基桩检测技术对受检基桩开展桩基检测，进行受检桩基完整性的初步判断，给出受检桩基病害位置；然后分别采用高应变基桩检测技术、基于速载法桩基设备的卸载点法基桩检测技术对受检基桩进行桩基检测，得到两者的p‑y曲线并比较后综合得出桩基承载力，利用检测得到的位移时程曲线、加速度时程曲线、力时程曲线、力行波曲线与受检桩基低应变检测结果比较，分析得到所述病害位置处的病害类型，从而提高了桩基承载力检测精度，同时为判断桩基病害具体类型提供了依据。
Comprehensive pile foundation detection method based on unloading point method
The invention discloses a comprehensive pile foundation detection method based on an unloading point method. The comprehensive pile foundation detection method based on the unloading point method comprises the steps that firstly the pile foundation detection is carried out on a detected foundation pile through employing a low-strain foundation pile detection technology, the preliminary judgment iscarried out on the integrity of the detected pile foundation, and a detected pile foundation disease position is given; then, a high-strain foundation pile detection technology and the unloading point method foundation pile detection technology based on rapid loading method pile foundation equipment are adopted for conducting pile foundation detection on the detected foundation pile; p-y curves are obtained and compared, and the bearing capacity of the pile foundation is comprehensively obtained; the displacement time-history curve, the acceleration time-history curve, the force time-historycurve and the force traveling wave curve which are obtained through detection are compared with the low-strain detection result of the detected pile foundation, and the disease type at the disease position is obtained through analysis, so that the pile foundation bearing capacity detection precision is improved, and meanwhile, a basis is provided for judging the specific type of pile foundation diseases.
本发明公开了一种基于卸载点法的桩基综合检测方法，该法先利用低应变基桩检测技术对受检基桩开展桩基检测，进行受检桩基完整性的初步判断，给出受检桩基病害位置；然后分别采用高应变基桩检测技术、基于速载法桩基设备的卸载点法基桩检测技术对受检基桩进行桩基检测，得到两者的p‑y曲线并比较后综合得出桩基承载力，利用检测得到的位移时程曲线、加速度时程曲线、力时程曲线、力行波曲线与受检桩基低应变检测结果比较，分析得到所述病害位置处的病害类型，从而提高了桩基承载力检测精度，同时为判断桩基病害具体类型提供了依据。
Comprehensive pile foundation detection method based on unloading point method
基于卸载点法的桩基综合检测方法
DAI GUOLIANG (author) / GUO QING (author) / GONG WEIMING (author) / ZHAO XUELIANG (author) / ZHU MINGXING (author) / WAN ZHIHUI (author)
2020-12-01
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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