A simulation method for a simulation device for spraying sand control slurry on sandy soil

Abstract

The invention discloses a simulation method for a sand control slurry simulation device for sand spraying, which realizes an integrated simulation experiment of indoor slurry spraying and rainfall simulation, and realizes slurry spraying and rainfall simulation through a soil sample box, a simulator and a control device. Monitoring and control of parameters such as spraying, soil samples, light intensity, temperature, humidity, etc., auxiliary simulation device provides the environment required for plant growth, simulates vegetation restoration after slurry spraying, and finally achieves the purpose of simulating the outdoor production environment. The research provides strong technical support; the simulation method is used to study the cementation of the soil after spraying sand control slurry, the erosion characteristics of rainfall on the cemented soil after spraying sand control slurry, and the growth of plants in different environments, and then To obtain the ability of vegetation recovery and rainfall erosion resistance after grout cemented soil, the performance parameters of the corresponding reinforcement grout can be selected according to the soil structure characteristics of different strata, and the quantitative relationship between the soil layer and the grout can be determined.

Description

technical field [0001] The invention relates to the field of indoor environment simulation experiments, in particular to a simulation method for a sand spraying sand control slurry simulation device. Background technique [0002] The situation of land desertification in my country is severe. According to the comparative analysis of the results of two national soil erosion remote sensing surveys, the national wind erosion area has increased from 1,876,100 square kilometers to 1,906,700 square kilometers, a net increase of 30,600 square kilometers. km increased to 1.12 million square kilometers, and the erosion area above the intensity increased from 660,000 square kilometers to 870,000 square kilometers, which shows that desertification is expanding, the degree of erosion is increasing, and the trend of serious soil erosion and ecological deterioration in my country has not yet be effectively contained. [0003] Spraying sand control slurry is one of the ways to curb land des...

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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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