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Experimental device for observing and measuring pile-soil interaction of unsaturated soil
The invention relates to an experimental device for observing and measuring pile-soil interaction of unsaturated soil and belongs to the technical field of pile-soil testing experiments. The experimental device comprises a pile body, a loading device, a transparent model box, a sensing system for monitoring the stress condition of the pile body and a PIV observation system, wherein an unsaturated soil foundation is arranged in the transparent model box, the pile body is vertically arranged, a lower end of the pile body is inserted into the unsaturated soil foundation, the loading device is installed on the transparent model box, an output end of the loading device is connected with an upper end of the pile body and the unsaturated soil foundation, and an input end of the sensing system is arranged on the pile body and in the unsaturated soil foundation; and an output end of the PIV observation system faces the transparent model box. The experimental device can be used for observing and recording displacement deformation of soil around the pile and various related parameter change conditions of the pile body under the conditions of vertical load, cyclic vertical load and the like, and is beneficial to evaluating the pile-soil interaction of unsaturated soil.
本发明涉及一种观察和测量非饱和土的桩土相互作用的实验装置，属于桩土测试实验技术领域。本实验装置，包括：桩体、加载装置、透明模型箱、用于监测桩体受力情况的传感系统和PIV观测系统；透明模型箱内设有非饱和土地基，桩体竖直设置，桩体的下端插设在非饱和土地基中，加载装置安装在透明模型箱上，加载装置的输出端与桩体的上端和非饱和土地基连接，传感系统的输入端设在桩体上和非饱和土地基中，PIV观测系统的输出端朝向透明模型箱。本实验装置能够观测并记录竖向荷载与循环竖向荷载作用等条件下桩周土的位移形变与桩身的相关各类参数变化情况，利于评估非饱和土的桩土相互作用。
Experimental device for observing and measuring pile-soil interaction of unsaturated soil
The invention relates to an experimental device for observing and measuring pile-soil interaction of unsaturated soil and belongs to the technical field of pile-soil testing experiments. The experimental device comprises a pile body, a loading device, a transparent model box, a sensing system for monitoring the stress condition of the pile body and a PIV observation system, wherein an unsaturated soil foundation is arranged in the transparent model box, the pile body is vertically arranged, a lower end of the pile body is inserted into the unsaturated soil foundation, the loading device is installed on the transparent model box, an output end of the loading device is connected with an upper end of the pile body and the unsaturated soil foundation, and an input end of the sensing system is arranged on the pile body and in the unsaturated soil foundation; and an output end of the PIV observation system faces the transparent model box. The experimental device can be used for observing and recording displacement deformation of soil around the pile and various related parameter change conditions of the pile body under the conditions of vertical load, cyclic vertical load and the like, and is beneficial to evaluating the pile-soil interaction of unsaturated soil.
本发明涉及一种观察和测量非饱和土的桩土相互作用的实验装置，属于桩土测试实验技术领域。本实验装置，包括：桩体、加载装置、透明模型箱、用于监测桩体受力情况的传感系统和PIV观测系统；透明模型箱内设有非饱和土地基，桩体竖直设置，桩体的下端插设在非饱和土地基中，加载装置安装在透明模型箱上，加载装置的输出端与桩体的上端和非饱和土地基连接，传感系统的输入端设在桩体上和非饱和土地基中，PIV观测系统的输出端朝向透明模型箱。本实验装置能够观测并记录竖向荷载与循环竖向荷载作用等条件下桩周土的位移形变与桩身的相关各类参数变化情况，利于评估非饱和土的桩土相互作用。
Experimental device for observing and measuring pile-soil interaction of unsaturated soil
一种观察和测量非饱和土的桩土相互作用的实验装置
FENG JIANXUE (author) / XIAO HE (author) / ZHANG XIAOYONG (author)
2021-05-14
Patent
Electronic Resource
Chinese
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