Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Novel pore pressure static sounding device for pile foundation performance testing
The invention discloses a novel pore pressure static sounding device for pile foundation performance testing. The novel pore pressure static sounding device for pile foundation performance testing comprises a signal device, vibrating wire type strain gauges, force sensors, a jack, filters, a vibrating wire type pressure sensor and a conical probe. The signal device is fixed in a friction sleeve, acable penetrates through the upper portion of the probe and is connected with an acquisition system on the ground, one end of a rubber hose is connected with a jack cylinder block, and the other endof the rubber hose penetrates through the upper portion of the probe and is connected with an external pressurizing system. The vibrating wire type strain gauges are symmetrically installed on the inner wall of the friction sleeve, and the force sensors are fixed to the symmetrical positions of the two sides of the lower portion of the friction sleeve. The two filters are connected to the two sides of the lower portion of the friction sleeve, the vibrating wire type pressure sensor is mounted at the bottom of the jack, a conical head straight rod is partially arranged in the friction sleeve, and a steel rod can freely move up and down. The cone tip resistance, the side wall friction resistance and the pore water pressure in the penetration process can be measured, and meanwhile the bearingcharacteristic of a pile tip in the pile foundation working process can be better studied.
本发明是一种用于桩基性能测试的新型孔压静力触探装置，包括信号装置、振弦式应变计、力传感器、千斤顶、滤波器、振弦式压力传感器、圆锥探头。信号装置固定于摩擦套筒内部，电缆穿过探头上部与地面处的采集系统连接；橡胶软管一端连接千斤顶缸体，另一端从探头上部穿出与外部的加压系统相连；振弦式应变计对称地安装在摩擦套筒内壁上，力传感器固定于摩擦套筒下部两侧对称的位置；摩擦套筒下部两侧连接有两个滤波器；振弦式压力传感器安装于千斤顶的底部；圆锥头直杆部分装于摩擦套筒内，钢杆可上下自由移动。本发明可测得贯入过程中的锥尖阻力、侧壁摩阻力、孔隙水压力，同时能够更好地研究桩基工作过程中桩端的承载特性。
Novel pore pressure static sounding device for pile foundation performance testing
The invention discloses a novel pore pressure static sounding device for pile foundation performance testing. The novel pore pressure static sounding device for pile foundation performance testing comprises a signal device, vibrating wire type strain gauges, force sensors, a jack, filters, a vibrating wire type pressure sensor and a conical probe. The signal device is fixed in a friction sleeve, acable penetrates through the upper portion of the probe and is connected with an acquisition system on the ground, one end of a rubber hose is connected with a jack cylinder block, and the other endof the rubber hose penetrates through the upper portion of the probe and is connected with an external pressurizing system. The vibrating wire type strain gauges are symmetrically installed on the inner wall of the friction sleeve, and the force sensors are fixed to the symmetrical positions of the two sides of the lower portion of the friction sleeve. The two filters are connected to the two sides of the lower portion of the friction sleeve, the vibrating wire type pressure sensor is mounted at the bottom of the jack, a conical head straight rod is partially arranged in the friction sleeve, and a steel rod can freely move up and down. The cone tip resistance, the side wall friction resistance and the pore water pressure in the penetration process can be measured, and meanwhile the bearingcharacteristic of a pile tip in the pile foundation working process can be better studied.
本发明是一种用于桩基性能测试的新型孔压静力触探装置，包括信号装置、振弦式应变计、力传感器、千斤顶、滤波器、振弦式压力传感器、圆锥探头。信号装置固定于摩擦套筒内部，电缆穿过探头上部与地面处的采集系统连接；橡胶软管一端连接千斤顶缸体，另一端从探头上部穿出与外部的加压系统相连；振弦式应变计对称地安装在摩擦套筒内壁上，力传感器固定于摩擦套筒下部两侧对称的位置；摩擦套筒下部两侧连接有两个滤波器；振弦式压力传感器安装于千斤顶的底部；圆锥头直杆部分装于摩擦套筒内，钢杆可上下自由移动。本发明可测得贯入过程中的锥尖阻力、侧壁摩阻力、孔隙水压力，同时能够更好地研究桩基工作过程中桩端的承载特性。
Novel pore pressure static sounding device for pile foundation performance testing
一种用于桩基性能测试的新型孔压静力触探装置
LIU DONGMING (Autor:in) / CAI GUOJUN (Autor:in)
28.08.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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