Portable test trough applied to field rainfall test and test method

Abstract

The invention relates to a portable test trough applied to field rainfall test and a test method. The portable test trough applied to field rainfall test comprises a plurality of baffles and an end cap, wherein connecting plugs and fixing hole structures are separately arranged at the edges of the baffles and the end cap, stainless steel rods are inserted in fixing holes, thus, the baffles keep stable relatively, the baffles and the end cap also keep stable relatively, and a water outlet is formed in the bottom end of a trough body. The portable test trough applied to field rainfall test has the beneficial effects that test spaces in different sizes are formed in a surrounding manner by increasing and reducing the number of the baffles, therefore, various test regions in different sizes orshapes are formed, the shortcoming of form simplification of a traditional device is overcome, the problem of poor structural stability is further solved, the portable test trough has the advantagesof easiness in mounting, convenience in carrying and the like, and the portable test trough is combined to a rainfall simulator, not only can be used for analyzing influences of factors such as vegetation coverage, rainfall factors and terrain to soil erosion, but also can be used for measuring parameters such as different types of soil runoff coefficients, slope runoff volume, erosion and sediment yield and runoff producing critical rainfall threshold values.

Description

technical field [0001] The invention relates to a portable test tank and a test method for field rainfall tests, belonging to the field of soil erosion experiments. Background technique [0002] Geological disasters and soil erosion caused by rainfall are one of the main ecological and environmental problems facing our country, posing a serious threat to human production and life. In order to effectively prevent disasters, it is very necessary to carry out all-round small-scale field test research on soil erosion process, influencing factors and characteristics, so as to obtain more realistic and suitable data for actual characteristics. At present, scholars at home and abroad have carried out a large number of soil erosion tests through rainfall simulation tests. However, the existing traditional devices are mainly suitable for indoor simulated rainfall tests, and generally have a fixed shape and size, and cannot adjust the size of the test area arbitrarily. Therefore, it ...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a portable test tank and testing method for field rainfall tests, which effectively solves the problems of traditional test tanks being single-shaped and difficult to install and carry, and synthesizes test spaces of different sizes by reducing the number of baffle plates, thereby forming multiple test tanks. Various test areas with different sizes or shapes not only overcome the shortcomings of the single form of traditional devices, but also solve the problem of structural stability. It has the advantages of easy installation and portability, and can meet the needs of field rainfall experiments on different types of soils.

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