Orthogonal bidirectional creep testing device and testing method of orthogonal bidirectional creep testing device

A test device and creep technology, applied in the direction of measuring device, using stable tension/pressure test material strength, instruments, etc., can solve the problems of reference and reference in difficult engineering applications, achieve various measurement methods, convenient operation, and guarantee Effect of Test Accuracy

Inactive Publication Date: 2012-07-25
SHANDONG UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

However, this device can only test the creep deformation of the grid material in a single direction, and in actual engineering, the force of the geogrid is bidirectional, so this device has certain limitations for the test of the creep deformation of the material. It is difficult to provide reference and reference for engineering applications

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  • Orthogonal bidirectional creep testing device and testing method of orthogonal bidirectional creep testing device
  • Orthogonal bidirectional creep testing device and testing method of orthogonal bidirectional creep testing device
  • Orthogonal bidirectional creep testing device and testing method of orthogonal bidirectional creep testing device

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Embodiment Construction

[0038] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0039] Such as figure 1 , 2 As shown, a creep test device includes a test bench with a tetrapod 1 structure, and the four legs of the tetrapod 1 are connected by beams. The lower side of the top of the test bench is provided with a vertical fixing system 6 and a horizontal fixing system 7 for fixing the geogrid test sample 8. The vertical and horizontal fixing systems 6 and 7 are equipped with a vernier caliper 2 with a table, and the vertical fixing system The lower part of 6 is connected with a vertical loading device, and the right side of the horizontal fixing system 7 is connected with a horizontal loading device 4. The vertical fixing system 6 includes two sets of upper and lower relative clamps 11, and each set of clamps is respectively processed with corresponding protrusions 12 and grooves 13, and the sections of the protrusions 12 and groove...

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Abstract

The invention discloses an orthogonal bidirectional creep testing device which comprises a testing rack; a horizontal fixing system and a vertical fixing system which are used for fixing a tested sample are arranged at the lower side of the top of the testing rack; a vernier caliper with a meter is arranged on each of the horizontal fixing system and a vertical fixing system; a horizontal loading device is connected at the right side of the horizontal fixing system; and a vertical loading device is connected at the lower part of the vertical fixing system. The invention synchronously discloses a testing device using the testing device. The operation is convenient and simple, the cost is low, the stability is good; the bidirectional creep test to the grid material is achieved, the energy is saved and the environment is protected during the testing process, and the orthogonal bidirectional creep testing device is easy to maintain.

Description

technical field [0001] The invention relates to a test device and method, in particular to an orthogonal bidirectional creep test device and a test method for geogrid material performance test. Background technique [0002] Creep refers to the phenomenon that the strain of a solid material increases with time under the condition of keeping the stress constant. With the continuous development of geosynthetics, geogrids are increasingly widely used in permanent engineering. Due to the long-term load of the geogrid in the geotechnical building, it will have a large deformation, which will greatly weaken the reinforcing function of the geotextile and cause the building to lose its stability. If it is subjected to two-way load, the impact will be greater. Therefore, in order for geogrids to perform their functions under long-term loading, their creep characteristics must be studied. In actual engineering, the soil with geogrid is subject to long-term load of the structure, so i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/14G01N3/00
Inventor 李术才张骞胡聪李利平石少帅周宗青周毅宋曙光陈云娟
Owner SHANDONG UNIV
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