A test device for testing the pull-out strength of plant roots in the field

Abstract

The invention relates to the field of testing equipment for the pull-out strength of plant roots, and aims to provide a test device for testing the pull-out strength of plant roots in the field. This kind of test device for testing the pull-out strength of plant roots in the field includes plant rhizome clamps, fixed bracket systems, loading devices, fixed rings, levers, steel rulers for displacement readings, conversion rings, spring dynamometers and hooks, and the fixed bracket systems include The main fixing bracket, the displacement reading steel ruler fixing bracket, the plant rhizome fixture includes a U-shaped base, a connecting screw, a clamping bolt and a clamping block, and the loading device includes a loading weight plate and a loading hanging basket. The principle and structure of the present invention are simple, can adapt to different field test conditions, and are easy to operate, and each part of the device can be disassembled and assembled, so it can be easily carried to the field for on-site in-situ testing, and the test results can reflect the growth of plant roots. actual mechanical properties.

Description

Technical field [0001] The invention relates to the field of test equipment for plant roots' pull-out strength, in particular to a test device for testing plant roots' pull-out strength in the field. Background technique [0002] The role of plant roots in soil consolidation and slope protection is an important way to implement ecological slope protection. Plant roots and soil together form a root-soil complex, which acts as a reinforced anchor for the soil. The damage mainly includes root-stem pull-off failure and root-soil interface friction failure. Both failure modes are related to root pull strength related. Therefore, testing the uplift strength of plant roots is an important basis for evaluating the effect of plant roots on soil consolidation and slope protection. [0003] At present, there are two main types of plant root tensile strength tests: indoor tests and field tests. The indoor test obtains the tensile strength of the collected root system through indoor test. B...

AI Technical Summary

Problems solved by technology

Due to the separation from the soil environment where the plants grow, it is easy to cause the root samples to lose water and dry out, and there is a difference between the obtained results and the true value of the root tensile strength

The indoor test method obtains the tensile strength of the rhizome material, which can only reflect the influence of the rhizome failure mode on the root pullout strength, and cannot reflect the adverse effects of the root-soil interface friction failure mode.

Field tests are mainly carried out with engineering pull-out test devices such as jacks, which are complicated to operate, high in cost, low in accuracy, and poor in adaptability to vegetation-covered environments.

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