Movable water-and-soil-loss testing apparatus capable of simulating engineering accumulation body

Abstract

The invention discloses a movable water-and-soil-loss testing apparatus capable of simulating an engineering accumulation body, belonging to the technical field of water-and-soil-loss testing. The movable water-and-soil-loss testing apparatus comprises a fan-shaped accumulation platform; the bottom of the accumulation platform is provided with universal wheels; two sides of the accumulation platform are provided with two baffle plates; each of the two baffle plates comprises a right angle; one right-angle side of one of the two baffle plates is connected with one right-angle side of the other baffle plate, and the other two right-angle sides of the two baffle plates are connected with the accumulation platform; the part, located between the two baffle plates, of the accumulation platform is an accumulation zone; the edges of the accumulation zone are provided with flow collecting grooves; each of the flow collecting grooves is provided with a water outlet, and a collection container is arranged below the water outlet; and the side surfaces, defining the accumulation zone, of the baffle plates are defined as inner sides, and the outer side of one of the baffle plates is provided with a passage allowing a tester to observe tests. The movable water-and-soil-loss testing apparatus provided by the invention is simple in structure, low in cost and convenient to move and provides basic data for control of and scientific research on water and soil loss so as to eliminate destroy of engineering accumulation bodies to ecological environment.

Description

technical field [0001] The invention relates to the technical field of water and soil loss tests, in particular to a test device for simulating water and soil loss of engineering accumulation bodies. Background technique [0002] With the rapid development of my country's economy, the number of production and construction projects has gradually increased. As the landform unit with the most serious man-made water and soil loss, the engineering accumulations produced in the production and construction process have attracted widespread attention (Shi Dongmei et al., Engineering accumulations with different soil-rock ratios runoff erosion process of body slope [J] "Journal of Agricultural Engineering" 2015 (17): 152-161); due to the difference in soil type and structure, there are still serious problems such as debris flow in the large-scale engineering accumulation formed in the process of production and construction Security risks. [0003] The existing technical method is to u...

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Problems solved by technology

However, the soil trough used in the prior art is usually a regular cuboid steel trough with a width of <2m and a depth of <1m. The limitation of shape and specification makes it difficult to simulate the accumulation process of engineering accumulations falling freely from a certain height, and the real engineering accumulations The process of runoff and sediment production

Therefore, the method of manually filling the soil tank cannot realize the simulation of the formation process of the engineering accumulation body, and the two-dimensional underlying surface formed by it ignores the influence of the three-dimensional shape on the law of water and soil loss, and cannot reflect the real engineering accumulation body. Due to the characteristics of runoff and sediment production, it is impossible to accurately study the factors of soil erosion in engineering accumulations and the effective prevention and control measures

[0004]In addition, in the soil erosion test, it is often necessary to move the simulated three-dimensional engineering accumulation to different positions for comparative tests, but the existing test technology is difficult to achieve this requirement

[0005] In summary, the existing soil erosion test technology has poor mobility, cannot accurately simulate the formation process and three-dimensional shape of real engineering accumulations, and cannot accurately Observe the characteristics and process of runoff and sediment production, so that the man-made soil erosion of engineering accumulations will easily lead to the destruction of the ecological environment

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