The Current Situation And Development Tendency Of Disaster Soil And Water Loss Of The Second Stage Of The Jinduicheng South Open Air Project

In this article, through investigation and study of jinduicheng open-pit mine south open-pit miningphase ii project of soil and water loss disaster condition, combining mining crown density and fieldinvestigation results, by the test of simulated flushing water, different water flow rate and cushion layer isstudied, the rule of runoff and sediment yield in the different coverage condition of, analysis of observedrunoff water flow characteristic and the formation of erosion gully in the development process, south openphase ii project in jinduicheng open-pit mine is studied the development trend of soil and water loss disaster.By studying the main conclusion is as follows:(1) on the basis of analyzing the environmental geological conditions, combined with the scenesimulation washout test results, the influence factors of soil and water loss disaster is studied. Runoff largeamount of slope surface erosion and sediment yield is the largest, the most serious soil and water lossdisaster situation; Amount of runoff in slope surface erosion and sediment yield in the second, the area ofsoil and water loss disaster situation followed; The minimum amount minimum runoff of slope surfaceerosion and sediment yield, the lightest area of soil and water loss disaster situation. Broken residual area ofsoil and water loss disaster is the most serious, anshan porphyrite area of soil and water loss disaster withsoil and water loss disaster of SLATE village in severe cases.(2) using the site simulation washout test, observation runoff velocity characteristics and the erosiongully formation process, different flow and cushion layer is studied, and the laws of soil and water lossdisaster under the conditions of different coverage. Was positively related to the intensity of rainfallintensity and soil and water loss disaster; Field emission of three thrown away.consequently, small particlesof cohesion, no certain soil integrity, unable to effectively of slag resistance alleviation reducing runoffscour directly, sediment yield cannot be decreased; Soil particles on the surface of the earth’s handling ofvegetation is also relatively bare land. In order to prove that bare land for soil and water loss control abilityis weak, the grass on the soil structural integrity protection and the ability to prevent water loss and s oilerosion has a great effect.(3) based on crown density in the field survey and analysis to predict the jinduicheng south opensecond phase mine disasters and the development trend of soil and water loss. The greater the rainfallintensity, soil and water loss disaster phenomenon more serious, the intensity of rainfall intens ity beyond acertain could trigger landslides geologic hazards; The three abandon slag field emission as soil cushion, if not implement effective measures to reduce the amount of slope runoff erosion and sediment yield, soil andwater loss disaster situation is very serious. Must have strong rain, the emissions of waste slag is likely tobe the formation of debris flows geological disasters, so it is necessary to set a retaining wall; According tothe experimental data analysis, found that the vegetation on the test area of soil and water loss disaster hasplayed a very significant control effect. So the measures for the slope foot planted vine plants or platforms,to prevent the occurrence of desertification landscape site; Mine laying around shelter forest.