Jianshan Phosphate Mine Slope Monitoring And Prediction Research

Based on extensive geological investigation and analysis, the characteristics of the geological environment and rock mass structure of Jianshan open-pit mining slope are studied systematically and thoroughiy in this Paper. Based on the applicability evaluation of slope monitoring methods and techniques, the slope monitoring system of TM30+GeoMos has established on Jianshan open-pit mining slope;According to the monitoring data.uesed the method of interpolation and singular value to study. Based on the mechanism of slope slip to carry out the slope deformation analysis method, and analysis the deformation spatiotemporal evolution and instability mode of Jianshan open-pit mining slope.Based on the forecasting model of slope deformation application research.Combination the comprehensive prediction criterion, Research on forecasting method of the comprehensive prediction of slope.By the deformation monitoring, analysising the deformation of slope, studying the the model and the warning criterion of forecast.The main results of this paper can be summed up as follows:(1)The automatic monitoring system on Jianshan open-pit mining slope has achieved. Based on the analysis of engineering geological environment of Jianshan open-pit mining slope, designed combination of monitoring program of the surface deformation monitoring, rainfall monitoring and crack observation. Considering the monitoring technology economic benefit and the monitoring effect, used georobot automatic monitoring system to Jianshan open-pit mining slope remote monitoring and realized real-time, on-line and automatic monitoring of Jianshan open-pit mining slope.It is shown that Jianshan open-pit mining slope monitoring system is reasonable, and it has provided reliable scientific basis for prediction and analysis of the treatment effect of the project. Compared with the traditional monitoring technology, georobot automatic monitoring system has some advantages in accuracy, timeliness and automation.(2)The comprehensive analysis method of slope deformation is presented. Based on analyzing the slip mechanism of slope, thinking of that the amount of deformation is determined by displacement or displacement rate, the direction of movement is determined by the slope of the displacement vector angle and azimuth angle. The traditional analysis method is only considering the displacement or the displacement rate, so this analysis method is incomplete. Therefore, the comprehensive analysis method of slope deformation is presented, which is combines the method displacement time series, the displacement vector angle, the azimuth angle and the three-dimensional displacement vector field. Application has been writed, which realized dynamic and comprehensive analysis the deformation of Jianshan open-pit mining slope.(3)The analysis method of three dimensional displacement vector fields for slope deformation is presented. Used the three-dimensional displacement vector field graph to analysis the instability model of Jianshan open-pit mining slope which is sliding and bending model. The trend of the slope has been downward, the bulge phenomenon of monitoring points F1, F2. F3were more obvious, and which has been buckling failure. It shows that the method can visually, accurately analyze the deformation and stability of slope, which is new method for analysis the instability model of slope deformation.(4)The early warning comprehensive criterion of slope has been established. According to the displacement-time graph.displacement vector angle,displacement rate angle, displacement azimuth, the characteristics of catastrophe progression macroscopic,using qualitative and quantitative analysis methods to establish the attention level (blue) warning level (yellow), alert level (orange), forecast level (red) four-level multi-parameter warning criterion.(5)The instability disaster prediction method of slope is presented. Combined the criterion forecast criterion and the prediction model to carry out dynamic and integrated forecasting research,and then the software of comprehensive forecasting have been writed. The dynamic and comprehensive forecasting of Jianshan open-pit mining slope have been achieved. When Jianshan open-pit mining slope into the orange alert, the forecasting has been issue timely and the measures to deal with emergencieshas been proposed. The forecasting software which has been used on Jianshan open-pit mining slope shows that it has been played a important role of safety and efficient production.and it can be applied in the similar conditions.