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Three-dimensional array type multi-settlement door model test system

A three-dimensional array, model test technology, applied in soil material testing, material inspection products, etc., can solve problems such as the difficulty of obtaining internal deformation and stress directly, the inability to accurately control the relative displacement, and the inability to consider the mutual influence of multiple sinkhole doors.

Pending Publication Date: 2017-11-03
WUHAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the current 3D model tests cannot consider the interaction between multiple subsidence doors, the degree of visualization is low, it is difficult to directly obtain the internal deformation and stress, and the relative displacement cannot be accurately controlled

Method used

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  • Three-dimensional array type multi-settlement door model test system
  • Three-dimensional array type multi-settlement door model test system
  • Three-dimensional array type multi-settlement door model test system

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Embodiment Construction

[0029] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments:

[0030] The three-dimensional array type multi-sink gate model test system shown in the figure can simulate the vertical soil arching effect, and is especially suitable for pile-supported embankments and composite foundation cushions under the condition of non-uniform settlement of the soil between the piles. Simulation of the deformation of the filler and the phenomenon of load migration.

[0031] The test system consists of an outer frame of the test device 1, a multi-sink door assembly, a displacement control assembly, a stuffing box, a geogrid installation assembly, a surface displacement measurement assembly, and a section displacement visualization measurement assembly. The multi-sink door assembly is composed of precision ball screw lifting platforms 6 arranged in an array, and each lifting platform 6 can be fixed to the bottom plate of the outer...

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Abstract

The invention discloses a three-dimensional array type multi-settlement door model test system which comprises an outer frame; the outer frame is internally provided with a filler box used for filling a material; a multi-settlement door component which is controlled by a displacement control component is arranged at the bottom of the filler box, comprises a plurality of lifting tables which are arranged in an array manner and are adjustable in height and is provided with a geogrid mounting component; a surface displacement measurement component used for measuring the morphologic change of the top of the filled material is arranged on the top of the outer frame; and a cross section displacement visualization measurement component used for measuring the morphologic change of the cross section of the filled material is arranged on the front side of the outer frame. The whole system can realize simulation on vertical soil arching effect and is particularly suitable for simulation on the phenomena of filler deformation and load transfer under the condition of non-uniform settlement of piled embankments and soil between piles in composite foundation cushions.

Description

Technical field [0001] The invention relates to a geotechnical similarity model test system, in particular to a three-dimensional array type multiple subsidence door model test system. Background technique [0002] The soil arching effect is a kind of load migration phenomenon in geotechnical engineering. The load is concentrated to the rigid boundary through the exertion of shear stress. Differential deformation is the main cause of the shear stress. Taking pile-supported embankment as an example, due to the difference in pile and soil modulus, under the action of vertical load, the soil between the piles produces a settlement greater than that of the pile body, and a settlement difference is formed at the top of the pile, resulting in the upper load between the pile and the pile. Redistribution occurs between the soil, transferring more load to the top of the pile. The method of simulating differential settlement through the settlement of the settlement gate can cause the load...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/24
CPCG01N33/24
Inventor 芮瑞万亿夏元友孙义
Owner WUHAN UNIV OF TECH
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