Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
In-situ static detection method for bearing capacity of existing building pile foundation
According to the in-situ static detection method for the bearing capacity of the pile foundation of the existing building, the relation between the settlement of a bearing platform and an external load N1 is measured through a static test, and then the counter-force N2 of an upper structure when the settlement amount of the bearing platform is different is obtained through finite element analysis. And finally, according to a static test result, the counterforce N2 of the upper structure and the dead weight N3, the pile foundation bearing capacity is calculated, damage to the upper structure in the detection process is avoided, and meanwhile the influence of the counterforce generated by the upper structure due to settlement of the bearing platform on the pile foundation bearing capacity detection result is considered.
本发明提出的一种既有建筑物桩基承载力原位静力检测方法，通过静力试验测出承台沉降与外荷载N1之间的关系，然后通过有限元分析得到承台不同沉降量时上部结构的反力N2。最后根据静力试验结果、上部结构反力N2和自重N3，计算得到桩基承载力，避免了检测过程中对上部结构的破坏，同时考虑了上部结构受承台沉降而产生的反力对桩基承载力检测结果的影响。
In-situ static detection method for bearing capacity of existing building pile foundation
According to the in-situ static detection method for the bearing capacity of the pile foundation of the existing building, the relation between the settlement of a bearing platform and an external load N1 is measured through a static test, and then the counter-force N2 of an upper structure when the settlement amount of the bearing platform is different is obtained through finite element analysis. And finally, according to a static test result, the counterforce N2 of the upper structure and the dead weight N3, the pile foundation bearing capacity is calculated, damage to the upper structure in the detection process is avoided, and meanwhile the influence of the counterforce generated by the upper structure due to settlement of the bearing platform on the pile foundation bearing capacity detection result is considered.
本发明提出的一种既有建筑物桩基承载力原位静力检测方法，通过静力试验测出承台沉降与外荷载N1之间的关系，然后通过有限元分析得到承台不同沉降量时上部结构的反力N2。最后根据静力试验结果、上部结构反力N2和自重N3，计算得到桩基承载力，避免了检测过程中对上部结构的破坏，同时考虑了上部结构受承台沉降而产生的反力对桩基承载力检测结果的影响。
In-situ static detection method for bearing capacity of existing building pile foundation
一种既有建筑物桩基承载力原位静力检测方法
XU YUJIE (Autor:in) / XU CHAO (Autor:in) / WANG WENTONG (Autor:in)
15.09.2023
Patent
Elektronische Ressource
Chinesisch
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