Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Non-contact type foundation pile side friction resistance testing device and method
The invention provides a non-contact type foundation pile side friction resistance testing device and method, and belongs to the field of foundation pile testing. The device comprises a datum line beam, a measuring pipe, a magnetic displacement measuring rod, a plurality of magnetic rings and automatic data acquisition equipment. The magnetic rings are distributed on the foundation pile reinforcement cage according to preset measuring points, and the measuring pipes penetrate through the magnetic rings. When a foundation pile loading test is carried out, a magnetostrictive displacement measuring rod composed of a plurality of connecting rods and magnetostrictive displacement sensors is placed in the measuring pipe, the magnetostrictive displacement sensors correspond to the magnetic rings one by one, and the upper end of the magnetostrictive displacement measuring rod is connected with the datum beam. And then the displacement information of the magnetic ring is acquired through automatic data acquisition equipment for pile side friction resistance testing. Meanwhile, a method for calculating the pile side limit frictional resistance through the pile-soil displacement and the pile side frictional resistance obtained through testing according to a hyperbolic model in a pile-soil interface load transfer function is provided. The device is simple in structure, detects displacement through the magnetostrictive displacement sensor, and is high in accuracy and low in cost.
本申请提供一种非接触式基桩桩侧摩阻力测试装置及方法，属于基桩测试领域。该装置包括基准梁、测管、磁致式位移测杆、多个磁环以及自动化数据采集设备。磁环根据预设测点在基桩钢筋笼上分布，测管穿过磁环。基桩加载试验时，将由多个连接杆和磁致位移传感器组成的磁致式位移测杆放置于测管内，且磁致位移传感器与磁环一一对应，磁致式位移测杆上端与基准梁连接。然后通过自动化数据采集设备采集磁环的位移信息进行桩侧摩阻力测试。同时，提出根据桩土界面荷载传递函数中的双曲线模型，通过测试获得的桩土位移及桩侧摩阻力计算桩侧极限摩阻力的方法。本装置结构简单，通过磁致位移传感器检测位移，准确度高且成本低廉。
Non-contact type foundation pile side friction resistance testing device and method
The invention provides a non-contact type foundation pile side friction resistance testing device and method, and belongs to the field of foundation pile testing. The device comprises a datum line beam, a measuring pipe, a magnetic displacement measuring rod, a plurality of magnetic rings and automatic data acquisition equipment. The magnetic rings are distributed on the foundation pile reinforcement cage according to preset measuring points, and the measuring pipes penetrate through the magnetic rings. When a foundation pile loading test is carried out, a magnetostrictive displacement measuring rod composed of a plurality of connecting rods and magnetostrictive displacement sensors is placed in the measuring pipe, the magnetostrictive displacement sensors correspond to the magnetic rings one by one, and the upper end of the magnetostrictive displacement measuring rod is connected with the datum beam. And then the displacement information of the magnetic ring is acquired through automatic data acquisition equipment for pile side friction resistance testing. Meanwhile, a method for calculating the pile side limit frictional resistance through the pile-soil displacement and the pile side frictional resistance obtained through testing according to a hyperbolic model in a pile-soil interface load transfer function is provided. The device is simple in structure, detects displacement through the magnetostrictive displacement sensor, and is high in accuracy and low in cost.
本申请提供一种非接触式基桩桩侧摩阻力测试装置及方法，属于基桩测试领域。该装置包括基准梁、测管、磁致式位移测杆、多个磁环以及自动化数据采集设备。磁环根据预设测点在基桩钢筋笼上分布，测管穿过磁环。基桩加载试验时，将由多个连接杆和磁致位移传感器组成的磁致式位移测杆放置于测管内，且磁致位移传感器与磁环一一对应，磁致式位移测杆上端与基准梁连接。然后通过自动化数据采集设备采集磁环的位移信息进行桩侧摩阻力测试。同时，提出根据桩土界面荷载传递函数中的双曲线模型，通过测试获得的桩土位移及桩侧摩阻力计算桩侧极限摩阻力的方法。本装置结构简单，通过磁致位移传感器检测位移，准确度高且成本低廉。
Non-contact type foundation pile side friction resistance testing device and method
一种非接触式基桩桩侧摩阻力测试装置及方法
ZHANG HONGLIANG (Autor:in) / ZHOU BAOJIANG (Autor:in) / SHAO XU (Autor:in) / FAN CHUANJING (Autor:in) / LI JIGUANG (Autor:in)
26.03.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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