Simulation device and simulation method for spraying sand control slurry to sandy soil

Abstract

The invention discloses a simulation device and a simulation method for spraying sand control slurry to sandy soil, which realize an indoor slurry spraying and rainfall simulation integrated simulation experiment, and realize monitoring and control of parameters such as slurry spraying, rainfall spraying, a soil sample, illumination intensity, temperature, humidity and the like through a soil sample box, a simulation device and a control device, the auxiliary simulation device provides an environment required by plant growth, simulates vegetation restoration after slurry spraying, finally achieves the purpose of simulating an outdoor production environment, and provides powerful technical support for slurry desertification control outdoor research; the simulation method is used for researching the cementing condition of sprayed desertification control slurry to a soil body, the erosion characteristic of rainfall to the cemented soil body sprayed with the desertification control slurry and the growth condition of plants in different environments, so that the vegetation recovery and rainfall erosion resistance capability after the slurry cemented soil body is obtained, and according to the soil texture structure characteristics of different stratums, performance parameters of the corresponding reinforced slurry are selected, and a quantitative relationship between the soil layer and the slurry is determined.

Description

technical field [0001] The invention relates to the field of indoor environment simulation experiments, in particular to a simulation device and simulation method for spraying sand control slurry on sandy soil. Background technique [0002] The situation of desertification in my country is severe. According to the comparative analysis of the results of the two national soil erosion remote sensing surveys, the national wind erosion area increased from 1,876,100 square kilometers to 1,906,700 square kilometers, a net increase of 30,600 square kilometers; at the same time, the area of ​​moderate erosion increased from 940,000 square kilometers kilometers increased to 1.12 million square kilometers, and the area of ​​erosion above the intensity increased from 660,000 square kilometers to 870,000 square kilometers. be effectively contained. [0003] Spraying sand control slurry is one of the ways to curb land desertification. Before implementing large-scale spraying of sand con...

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Problems solved by technology

According to the comparative analysis of the results of the two national soil erosion remote sensing surveys, the national wind erosion area increased from 1,876,100 square kilometers to 1,906,700 square kilometers, a net increase of 30,600 square kilometers; at the same time, the area of ​​moderate erosion increased from 940,000 square kilometers kilometers increased to 1.12 million square kilometers, and the area of ​​erosion above the intensity increased from 660,000 square kilometers to 870,000 square kilometers. be effectively contained

[0003] Spraying sand control slurry is one of the ways to curb land desertification. Before implementing large-scale spraying of sand control slurry, it is necessary to conduct experiments on the land spraying sand control slurry to estimate and judge the effect of sand control slurry. Therefore, the study of spraying sand control The cementation of the slurry to the soil, the study of the erosion of the cemented soil after spraying the slurry by rainfall, and the study of the growth of plants in different environments are unavoidable issues. Currently, field investigations and field experiments are generally used. The experiment is time-consuming and labor-intensive, and there are too many uncertain factors, which lead to the low reference value of the experimental results. Therefore, there is an urgent need for a simulation device and simulation method for indoor sand spraying sand control slurry that can simulate the rainfall environment. Control the main experimental parameters such as slurry pump pressure, slurry spraying frequency, rainfall intensity parameters, sediment content, and groundwater occurrence, and conduct qualitative and quantitative analysis of slurry characteristics and sand-fixing effects, so as to choose an appropriate way to control land desertification

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