Information Visualization And Intelligent Analysis And Management System To Safety Monitoring In Underground Powerhouse

In view of the underground powerhouse in geotechnical projects, an important object to bestudied, this present paper conducts the development and study of GIS technique on the basis ofspecialty characters. The major purpose is finally to establish an information system that hasspeciality analysis functions, capable of providing visual information and integration information,network information and integration information, thus creating an effective and comprehensivedecision-makingplatformforthesafetymonitoringofundergroundpowerhouses.Themaincontentsandresultsofthisstudyareasfollows:1. Conducted the study of 3D geological model establishment for underground powerhouses,set up the 3D panoramic model that includes 3D strata information, construction excavation , 3Dopenings,faults,undergroundwaterdistribution,typicalmonitoringtwonewalgorithms:thefirstisthe one for the generation of 3D strata , which makes joint interpolation using three kinds ofpoints,i.e.,geological borehole points, characterpointsalong geologicalprofile alignment and thoseinterpolated from the character points ; the second is method for the generation of undergroundopenings through two random special polygons . These two algorithms solve the problem of twoarbitrarycavern'scuttothemselves.2. Conducted the studyof quick 3D plotting based upon DirectX,made LOD's managementin 3D models, andmade useofthealgorithm offrustumtackle to settle the problemof3D data size.The study of 3D browse makes the 3D skimming more true, which is added quick algorithm ofcollisiondetection.3. Aiming at the prediction problem of nonlinear displacements of surrounding rockdeformation, this paper puts forward the idea of deterministic factors to obtained model. Adoptingthis method, fault factor and excavation footage factor are all respectively studied, afterwards,considering the influence of two factors, the final obtained model is gotten, which can be used topredictthe nonlineardisplacementsof surroundingrocks.4. By combination of computing schemes of uniform design method with basic mechanicalparameters and initial stress field as basic variables, the three-dimension elasto-plastic finite elementmethod is used to complete the excavation-simulated computation of underground major plantconsidering the effect of excavation unloading, and basic mechanical parameters and initial stress fieldare obtained by multivariate linear regression method as well. In addition, the paper puts forwardhowto transfer data structurefrom3D geologicalmodel tonumericalsimulation, whichimplementsthepurposetoquicklybuildfiniteelementmodel.5. The meta-synthesis of information about safety monitoring in underground powerhousevisualization and intelligent analysis and management system is studied, this paper discusses theoveralldesign anddevelopmentrealizationandintroducessome syntheticalanalysisfunctionsoftheintegratingsystem.