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Experimental device for observing and measuring pile-soil interaction of unsaturated soil

A technology of observation and measurement, experimental devices, applied in the direction of measuring devices, testing of basic structures, analysis of suspensions and porous materials, etc.

Pending Publication Date: 2021-05-14
GUIZHOU MINZU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the existing related research, there is no intuitive observation on the displacement and deformation of the soil when the pile-soil interaction occurs and the influence of the pile-soil interaction

Method used

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  • Experimental device for observing and measuring pile-soil interaction of unsaturated soil
  • Experimental device for observing and measuring pile-soil interaction of unsaturated soil
  • Experimental device for observing and measuring pile-soil interaction of unsaturated soil

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Embodiment

[0041] Such as Figure 1-Figure 7 As shown, the present embodiment provides an experimental device for observing and measuring the pile-soil interaction of unsaturated soil, which is characterized in that it includes: a pile body 2, a loading device, a transparent model box 1, and is used to monitor the force of the pile body 2 Situation sensing system and PIV observation system.

[0042] The transparent model box 1 is provided with an unsaturated soil foundation, the pile body 2 is vertically arranged, the lower end of the pile body 2 is inserted in the unsaturated soil foundation, the loading device is installed on the transparent model box 1, and the output end of the loading device is connected to the pile The upper end of the body 2 is connected, the input end of the sensor system is set on the pile body 2 and in the unsaturated soil foundation, and the shooting end of the PIV observation system faces the transparent model box 1 .

[0043] Wherein, the transparent model ...

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Abstract

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.

Description

technical field [0001] The invention belongs to the technical field of pile-soil testing experiments, and in particular relates to an experimental device for observing and measuring pile-soil interaction of unsaturated soil. Background technique [0002] Prefabricated pile foundation is a deep foundation that connects the tops of several piles into a whole through caps to bear dynamic and static loads together, and piles are vertical or inclined foundation components set in the soil. Prefabricated pile foundations are now widely used in various building foundations, bridges, pile-bearing roads, wharves, ports, and marine development projects. [0003] Unsaturated soil is widely used in engineering. The mechanism of interaction between prefabricated piles and unsaturated soil in the process of sinking piles and bearing capacity is very complicated, and the interaction mechanism of pile-soil interface is a key scientific issue. Affected by factors such as precipitation, evapo...

Claims

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Application Information

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IPC IPC(8): G01N3/08G01N3/24G01N3/02G01N15/08E02D33/00
CPCG01N3/08G01N3/24G01N3/02G01N15/08E02D33/00G01N2203/0019G01N2203/0025
Inventor 冯健雪萧和张小勇
Owner GUIZHOU MINZU UNIV