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Testing device and method of bearing capacity of pile foundation during vibration subsidence in soft soil
The invention discloses a testing device and method of bearing capacity of a pile foundation during vibration subsidence in soft soil. The testing device comprises a model box, wherein the model box is sequentially provided with a soft soil layer, a vibration subsidence device and a supporting layer from the top to the bottom, the vibration subsidence device comprises a lifting table shell and a lifting table panel disposed in the lifting platform shell, an electric lifter used for driving the lifting platform panel to move up and down is arranged in the lifting table shell, a plurality of elastic pieces are arranged between the lifting table panel and the soft soil layer, the lower portion of a tested single pile is buried in the force holding layer and upwards penetrates through the vibration subsidence device and the soft soil layer, and the upper end of the tested single pile extends out of a top plate of the model box. According to the testing device, vibration subsidence of pilesoil in a soft soil area is simulated through the vibration subsidence device, any subsidence amount can be set by setting the moving distance of the lifting table panel, and therefore the influence of subsidence on a pile foundation is studied more comprehensively; and an earthquake process is simulated by utilizing springs on the vibration subsidence device, the earthquake process is closer to areal situation, and test data is accurate and reliable.
本发明公开了一种桩基在软弱土中震动沉陷时的承载力试验装置及试验方法，试验装置包括模型箱，模型箱中，自上至下依次设置有软土层、震动沉陷装置和持力层，震动沉陷装置包括升降台壳体和设置在升降台壳体中的升降台面板，升降台壳体中设置有用于带动升降台面板上下运动的电动升降机，升降台面板和软土层之间设置有多个弹性件，被测试的一个单桩的下部埋置于持力层内，向上穿过震动沉陷装置和软土层，上端伸出模型箱的顶板。利用震动沉陷装置模拟软土地区桩土的震动沉陷，可通过设定升降台面板的移动距离设定任意沉降量，从而更加全面的研究沉陷对桩基础的影响。利用震动沉陷装置上的弹簧模拟了地震过程，更为接近真实情况，试验数据准确可靠。
Testing device and method of bearing capacity of pile foundation during vibration subsidence in soft soil
The invention discloses a testing device and method of bearing capacity of a pile foundation during vibration subsidence in soft soil. The testing device comprises a model box, wherein the model box is sequentially provided with a soft soil layer, a vibration subsidence device and a supporting layer from the top to the bottom, the vibration subsidence device comprises a lifting table shell and a lifting table panel disposed in the lifting platform shell, an electric lifter used for driving the lifting platform panel to move up and down is arranged in the lifting table shell, a plurality of elastic pieces are arranged between the lifting table panel and the soft soil layer, the lower portion of a tested single pile is buried in the force holding layer and upwards penetrates through the vibration subsidence device and the soft soil layer, and the upper end of the tested single pile extends out of a top plate of the model box. According to the testing device, vibration subsidence of pilesoil in a soft soil area is simulated through the vibration subsidence device, any subsidence amount can be set by setting the moving distance of the lifting table panel, and therefore the influence of subsidence on a pile foundation is studied more comprehensively; and an earthquake process is simulated by utilizing springs on the vibration subsidence device, the earthquake process is closer to areal situation, and test data is accurate and reliable.
本发明公开了一种桩基在软弱土中震动沉陷时的承载力试验装置及试验方法，试验装置包括模型箱，模型箱中，自上至下依次设置有软土层、震动沉陷装置和持力层，震动沉陷装置包括升降台壳体和设置在升降台壳体中的升降台面板，升降台壳体中设置有用于带动升降台面板上下运动的电动升降机，升降台面板和软土层之间设置有多个弹性件，被测试的一个单桩的下部埋置于持力层内，向上穿过震动沉陷装置和软土层，上端伸出模型箱的顶板。利用震动沉陷装置模拟软土地区桩土的震动沉陷，可通过设定升降台面板的移动距离设定任意沉降量，从而更加全面的研究沉陷对桩基础的影响。利用震动沉陷装置上的弹簧模拟了地震过程，更为接近真实情况，试验数据准确可靠。
Testing device and method of bearing capacity of pile foundation during vibration subsidence in soft soil
桩基在软弱土中震动沉陷时的承载力试验装置及试验方法
FENG ZHONGJU (author) / GUAN YUNHUI (author) / CAI JIE (author) / LI TIE (author) / HU HAIBO (author) / DONG JIANSONG (author) / ZHAO RUIXIN (author) / WANG ZENGXIAN (author) / WU MIN (author) / CHENG YUANMENG (author)
2021-01-15
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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