Research On Early Warning System Of Open-pit Slope Safety Based On Numerical Calculation And Spatial Database

The deformation monitoring and stability of slope prediction research is a hotresearch problem in the field of rock mechanics, which has achieved fruitful researchresults, but with the improvement of GPS technology and China’s beidou system, theresearch achievements in slope deformation monitoring and prediction intelligentintegration is a little less. It is of great theoretical significance and practical value thatOf unattended in open-pit mine slope deformation in real-time, stability andcontinuous monitoring of intelligent forecasting research for open-pit mine slopesafety management and including the beidou system, satellite navigation technologypopularization and application in the field of slope monitoring and prediction.Key area subject with "mining area real-time deformation monitoring and earlywarning system based on GPS " project as the backing, in jinduicheng open-pit mineslope fault zone is weak in the large scale and complex internal structure andlithology of geological features, starting from the timeliness of safety monitoring,through the numerical analysis of slope monitoring point is optimized, through thetheory of signal processing and analysis prediction model is established, and usingspatial interpolation encryption algorithm, implements the intelligent integration ofdeformation monitoring and prediction. Made the following main results:(1) The paper uses numerical analysis to determine the gold into focus inopen-pit mine slope is proposed to choose the monitoring points. And use the LeicaGNSS QC software of the monitoring data of cycle slip, multipath continuity, dataintegrity, and data were analyzed, and optimized the point layout, this paper proposesa new monitoring stations layout principles.(2) Introduced the wavelet threshold shrinkage method for noise reductionprocessing data. In the analysis of GM (1,1) interval, and the interval displacementprediction precision, on the basis of establishing the improved grey-variabledimension fractal model, and using numerical simulation software Matlab to validatethe model analysis, horizontal and vertical as well as the overall displacement oflandslide, get the model of GPS data has the very good adaptability, improve the prediction accuracy.(3) using spatial interpolation encryption algorithm, by establishing a true3dreal-time dynamic evolution model of mine safety, representation and simulation ofmining activities and relevant for safety, environment influence; Based on historicalmonitoring data and time series model, timely and accurately predict potentialgeological disaster place, time and scope; Real-time dynamic release of mine safetyand geological disasters such as visual information and text messages warning.Implements "monitoring","evaluate","forecast","alarm","security" five for theintegration of intelligent integration, realized on the slope of unmanned, visualize,real-time online monitoring and prediction.Subjects results in gold shares more than a year of production operation injinduicheng open-pit mine shows that the system has realized the all-round,all-weather, three-dimensional ground surface deformation information of the miningarea unmanned real-time collection, fast, safe transmission, automatic decodingprocess, monitoring and early warning, information processing and visualization formining slope safety management provides an intelligent aided decision support, theGPS and beidou satellite navigation system in the slope monitoring, it has referencevalue promotion.