Test platform for testing creep property of geosynthetic material

Abstract

The invention discloses a test platform for testing the creep property of a geosynthetic material. The test platform comprises a test stand, a test box, a vertical loading device, a slide bearing device, a horizontal loading device, a left clamp, a right clamp, a sensor and a control system, wherein the test box is filled with soil; the slide bearing device comprises two slide rods horizontally mounted on the test stand and a slide sleeve in sliding fit with the slide rods, a bottom plate is horizontally mounted at the top of the slide sleeve, the test box is fixedly mounted on the upper surface of the bottom plate, a loading frame is further arranged on the bottom plate, the vertical loading device is fixedly mounted in the middle of the loading frame, the left clamp and the right clamp are symmetrically mounted on two sides of the test box, the right clamp is connected with the sensor through a pull rod, and the left clamp is connected with a power end of the horizontal loading device. The test box is filled with the soil, a to-be-tested geosynthetic material is located in the soil, creep conditions of the geosynthetic material under soil restriction/lateral confinement conditions can be simulated realistically, and the test precision is improved.

Description

technical field [0001] The invention relates to the technical field of testing geotechnical synthetic materials, in particular to a test platform for testing the creep performance of geotechnical synthetic materials. Background technique [0002] Compared with traditional masonry, cement and other materials, geosynthetics are light, economical and practical, making them a new type of geotechnical engineering materials. With the extensive application of geosynthetics in engineering, people began to pay attention to whether the long-term mechanical properties of geosynthetics affect the long-term stability of engineering reinforcements due to their long-term load status. [0003] An important characteristic of geosynthetics in engineering structures is that its deformation is a function of time under constant load, that is, it exhibits obvious creep characteristics. The geosynthetics used as reinforcement / reinforcement in the soil should have good creep resistance, otherwise,...

AI Technical Summary

Problems solved by technology

[0015] The technical problem to be solved by the present invention is to provide a test platform for testing the creep performance of geosynthetics. By setting up a test box with the geosynthetics, the test box is filled with soil, and the soil is compacted with a vertical loading device. The test geosynthetic material is located in the soil, which can truly simulate the creep of the geosynthetic material under soil constraints / confined conditions, and the test is carried out without artificial interference, ensuring the accuracy of the test data

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