Device for performing tensile test on geosynthetics in soil

Abstract

The invention relates to a device for performing a tensile test on geosynthetics in soil. The device comprises a clamping component, an isolated sleeve, a test box, a main frame, measuring equipment and an acquisition control box, wherein the clamping component can stably clamp the geosynthetics; the isolated sleeve can protect a clamp from being contacted with soil; the test box provides a necessary test space to the tensile process of the geosynthetics in the soil; each component of the device can be stably arranged on the main frame; the main frame reserves improvement space for operability of the test; the measuring equipment can measure the drawing force, tensile displacement and normal load precisely; and the acquisition control box can integrate functions of controlling data acquiring, recording and test processes so as to facilitate test operation. The device can realize single-side and double-side drawing of the geosynthetics in the soil, is used for researching the tensile property of the geosynthetics under the real working condition, has more practical significance compared with the conventional tensile test machine under the condition of the tensile test in air, and can realize research on the interaction mechanism of the geosynthetics and the soil under different load conditions.

Description

technical field [0001] The invention relates to a test device capable of testing the tensile properties of geosynthetic materials in soil, belonging to the technical field of material performance tests. Background technique [0002] For the test of the tensile properties of geosynthetics, a simple test method of stretching in the air is often used. The measured tensile properties are quite different from the real stress-strain state of geosynthetics in engineering use, and cannot accurately reflect Mechanical properties such as tensile deformation state and tensile strength of geosynthetics in soil or under confined conditions. [0003] Products similar to the present invention mainly include various equipment for testing the tensile properties of geosynthetics, which are mainly used for conventional tensile tests, creep tests or tests related to tensile properties, such as the bidirectional tensile properties of geosynthetics at Hohai University. Tensile Creep Tester (Appl...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a tensile test device for geosynthetics in soil, which can simulate the stress environment of geosynthetics in actual use, and solve the problem that existing geosynthetics tensile tests cannot truly reflect the material in the soil Questions of tensile properties, studying complex interaction mechanisms between geosynthetics and soil

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