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Geosynthetic material jacking creep test device

A geosynthetic material, creep test technology, applied in the direction of applying stable tension/pressure to test the strength of materials, etc., to achieve the effect of reasonable design, convenient use and accurate experimental data

Pending Publication Date: 2019-06-25
GUILIN UNIV OF ELECTRONIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a geosynthetics top pressure creep test device, which can study the complex action mechanism of geosynthetics under different top pressure states, and is easy to use and accurate in measurement. The long-term creep performance experimental test can be completed without plugging in the power supply

Method used

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  • Geosynthetic material jacking creep test device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] 1. The test method for measuring the top pressure creep performance of geosynthetics CBR using the above-mentioned device includes the following steps:

[0058] 1-1) Leveling lever

[0059] Use the lever leveling instrument to level the lever before the experiment, place the lever leveling instrument on the lever, adjust the position of the pressure hammer, make the small water drop of the lever leveling instrument in the middle of the leveling instrument, and then level the lever;

[0060] 1-2) Fixing of geosynthetics

[0061] The geosynthetics are tensioned and placed under the pressure plate of the directional bucket, and the clamp cover is placed on the pressure plate of the directional bucket. The geosynthetics and the pressure plate are fixed on the bracket with plum blossom nails, which can ensure that the directional bucket cover is clamped tightly. tighter;

[0062] 1-3) Adjust the position of the jig part

[0063] Adjust the position of the fixture part so ...

Embodiment 2

[0075] 2. The test method for measuring the puncture strength of geosynthetics using the above device, including the following steps:

[0076] 2-1) Leveling lever

[0077] Use the lever leveling instrument to level the lever before the experiment, place the lever leveling instrument on the lever, adjust the position of the pressure hammer, make the small water drop of the lever leveling instrument in the middle of the leveling instrument, and then level the lever;

[0078] 2-2) Fixing of geosynthetics

[0079] The geosynthetics are tensioned and placed under the directional barrel cover, and the clip cover is placed on the directional barrel cover. The geosynthetics and the directional barrel cover are fixed on the bracket by the plum blossom nails, which can ensure that the directional barrel cover is clamped tighter;

[0080] 2-3) Adjust the position of the jig part

[0081] Adjust the position of the fixture part so that the mouth of the directional bung is directly belo...

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Abstract

The invention discloses a geosynthetic material jacking creep test device. The device comprises a workbench, a suspension part, a guide part, a clamp part, a control part and a counterweight part. Theworkbench comprises a base, a lever suspension frame and a stabilizing cross beam, and plays a role in stabilizing the whole device. The suspension part comprises a lever, a weight frame, a pressinghammer and a lever holder, and can achieve the effect of pressing the geotechnical cloth after leveling. The guide part comprises a jacking block, a pressure sensor, a rotating force direction indicator, a directional barrel and a connecting rod, and enables the forces acting on a geosynthetic material to be kept in the same vertical direction all the time. The clamp part comprises a clamp cover,a bracket and a quincunx nail and is used for fixing the geosynthetic material. The control part comprises a data acquisition workstation, a displacement sensor, an electromagnetic fixing instrument,a sensor switching station and an SIS426 digital biaxial tilt angle sensor and is used for data acquisition, processing, storage, output and the like. The counterweight part comprises a water level leveling vessel and an intelligent water supply pump, so that the force acting on the geosynthetic material is kept constant.

Description

technical field [0001] The invention relates to the field of performance testing of geosynthetics, in particular to a top pressure creep test device for geosynthetics. Background technique [0002] The research on the dynamic creep performance of geosynthetics has an inseparable relationship with the construction design and engineering quality. At present, there are only experimental devices for creep performance testing of geosynthetics under conventional tensile state, and there is no experimental device for creep performance testing of geosynthetics under top pressure. [0003] Products similar to the present invention mainly include various experimental devices for measuring the creep properties of geosynthetics, which are mainly used for conventional tensile tests, creep tests or tests related to creep properties. For example, Chinese patent CN107356482A discloses a test The test platform for the creep performance of geosynthetics can measure the creep mechanical prope...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/08
Inventor 吴迪赵阳吴建建李晓李倩张耀文程峰苏春晖唐咸远
Owner GUILIN UNIV OF ELECTRONIC TECH
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