The Buzhaoba Open Slope Deformation Analysis And Gis Studies Of The Forecast System

Analysis and forecast of slope deformation is an important means to ensure the safety opencast coal mine production. With the surface coal mining, slope angle and slope height increases gradually, needing space and time from the angle of slope deformation analysis and forecasting, to ensure the reliability of forecasts. GIS technology will be applied to the deformation analysis, so as to enhance the visibility of the results. The main contents are as follows:1. Analysis of displacement of monitoring points, combining with Buzhaoba open pit geological data, summarized Buzhaoba surface mine Mountain slope displacement trends northwest slope with a large deformation, low stability;2. Based on the GIS platform, using fuzzy comprehensive evaluation method of the study area to evaluate the risk by slope, and its evaluation value between 55 and 65, between the slope is generally dangerous. Slope angle slope in the northwest region near the lowest evaluation value, is potentially the most dangerous areas; away from the waterline and the slope of the Northwest Angle line slope exchange of regional evaluation value is high, is relatively safe areas;3. GIS-based platform, using Monte Carlo method to calculate and display the probability of slope failure probability of the study area, Evaluate its stability, the study area of the failure probability P is less than 5%, is stable. Among them, the slope angle near the water line of the failure probability of exchange than other regions;4. Create three-dimensional solid model of long-term forecasts, the study area for time prediction of slope deformation; use of GIS Platform, a different time zone after deformation of the surface model, visual display of the next slope deformation.