Research On The Soil Erosion Mechanisms And Rules Of Steep Slope Under The Condition Of Rainfall

Based on the comprehensive analysis of slope erosion model and the solution at home andabroad based on the related documents, the comprehensive application of sediment movementmechanics, hydraulics, fluid mechanics, interdisciplinary theory, through the experimentresearch, the theoretical analysis and numerical simulation, the method of combining, system tosoil erosion mechanism and laws steep rainfall research, obtained the main research results are asfollows:1) Through the indoor experiments revealed different vegetation and different vegetationcoverage of soil slope sediment runoff, infiltration,, vegetation river closure and slope thin layerof the current and the change rule and soil steep slope rainfall erosion law;2) Develop the steep slope soil rainfall research, based on the theory of unsaturated soilinfiltration set up the steep slope rainfall infiltration model, obtained the different vegetation,different initial moisture content and different saturated hydraulic conductivity of soil slopeunder rainfall pattern of quantitative analysis of soil slope rainfall erosion law provides theorybasis;3) Based on energy conservation established the soil erosion rate formula, and with theindependent research and a measure of the deformation of the slope erosion testing equipmentand independent development of slope erosion deformation evolution process measurementanalysis system, and define the naked slope of slope soil erosion clay reactive power, through thedevelopment of different operating conditions of the indoor test results of different coverage, andconnecting with the bare clay slope erosion work, make sure the different vegetation and soilerosion coverage reactive, soil erosion model for steep slope rainfall research to provide thetheory basis and support parameters;4) comprehensive consideration of the slope gully erosion groove between and erosion,based on the fluid mechanics, sediment movement mechanics, and other disciplines basic theory,establish the steep slope soil rainfall erosion dynamics model, get the steep slope soil rainfallerosion dynamic rules, and through the test the applicability of the model.The research results of the above on the slope of the implementation of the ecological slopeprotection provide technical support, it has important guiding significance and application value.