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Test box for simulating partial non-uniform deformation of road earth base or basic level structure

A technology of uniform deformation and test chamber, which is applied in the field of test chambers simulating frost heaving, thawing, sinking and voiding phenomenon of road soil foundation or base structure, can solve the problems of long test period and high cost, and achieve the goal of reducing test cost and shortening test period. Effect

Inactive Publication Date: 2013-04-17
上海日浦信息技术有限公司
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AI Technical Summary

Problems solved by technology

[0003] In order to overcome the shortcomings of long field test road test period and high cost, the present invention provides a test box for simulating local uneven deformation of road soil foundation or base structure, It can conveniently and accurately simulate the phenomena of frost heaving, thawing settlement, voiding and uneven settlement of the road base structure indoors.

Method used

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  • Test box for simulating partial non-uniform deformation of road earth base or basic level structure
  • Test box for simulating partial non-uniform deformation of road earth base or basic level structure
  • Test box for simulating partial non-uniform deformation of road earth base or basic level structure

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings and examples.

[0018] Refer to Figure l and figure 2 , the test box of the present invention comprises box body 1 and bearing 3, and the middle position of box body 1 bottom is provided with the vertical drawer 4 that can move up and down, and drawer 4 is provided with 2 jacks 6; There is a certain distance on the side, and there is no distance from the front and back of the box body; the box body 1 and the drawer 4 can be made of steel plate or high-strength plexiglass. Box 1 has built-in fine sand 2, and fine sand 2 should be dry, and the filling height of fine sand should be greater than the height of drawer 4. The bottom of the drawer 4 is provided with a sand leakage pipe 5 and a switch 7 . The sand leakage pipe 5 can be arranged at the center position of the bottom of the drawer 4, and two jacks 6 are arranged on both sides of the sand leakage pipe 5 res...

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Abstract

The invention provides a test box for simulating partial and non-uniform deformation of a road earth base or basic level structure. The test box can be used for conveniently and accurately simulating the phenomena of frost heave, thaw collapse, void, differential settlement and the like of the road earth base or basic level structure indoors; the test period is shortened; and the test cost can be reduced. The technical scheme is as follows: the test box for simulating the partial non-uniform deformation of the road earth base or basic level structure comprises a box body and a support; a drawer capable of moving upwards and downwards is arranged at the lower part of the box body; one or two jacks are arranged below the drawer; and fine sand is arranged inside the box body, and the fine sand filling height is more than the height of the drawer.

Description

technical field [0001] The invention relates to a test device for simulating local uneven deformation of road soil foundation or base structure, in particular to a test box for simulating the phenomenon of frost heaving, thawing and sinking of road soil base or base structure. Background technique [0002] For the pavement structure, no matter what type of pavement it is, the support stability of the base and soil foundation is very important, and unstable support will greatly reduce the service life of the pavement. Instability of base and soil foundation supports mainly include: frost heaving and thawing settlement in permafrost areas, uneven consolidation settlement in soft soil areas, differential settlement of high fill embankment, and collapsible settlement in loess areas , mine road goaf, and common pavement slab bottom hollowing on cement concrete pavement. At present, when dealing with related foundation problems, the method of theoretical calculation combined with...

Claims

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Application Information

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IPC IPC(8): G01N1/28
Inventor 不公告发明人
Owner 上海日浦信息技术有限公司
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