Back-analysis Of Initial Ground Stress Based And Analysis Of The Surrounding Rock Mass In Underground Hydropower House

21 centuries is mankind development and make use of the underground space of century.For long time, the ground of the engineering area should a characteristic of dint and underground engineerings round the rock stability analysis has been engineering scholar research of important topic.Along with the continuously raise of the engineering technique level, the resources development, water conservancy, transportation and undergrounds check the industry to experiment the close related business of etc. and underground engineerings to leap the development, the space and quantities of the underground engineering are increasing increasingly, scale also more and more big, parts of century and large or especially the large and underground engineering one after another constucts.Proceed from the stability analysis to the safety and the technique economies that underground engineering constuct compare, needing to carry on the beginning to start the ground should the dint field of back-analysis and round the rock.This text is to take ANSYS build up a model and carry on the mesh demarcation, take soft FLAC3D as terrace carry on calculation, with the underground hydropower house HUHEHAOTE as an example, introducing the adoption BP nerve network and FLAC3D back-analysis the beginning to start ground should the method of the dint field and carry on rounding the analytical and detailed process of the rock stability to the underground hole rooms.Combine actually measure ground should the dint data, built up three displacements a model of not line, imitate to settle the layer to take intensively;Aim at differently should the dint field, solve with the procedure of FLAC3D, get to appear lost in thought analytical through the network sample, to excellent the nerve network that turned takes into the training;Make use of to measure actually at the request of dint value, starts to the beginning ground should the dint field carry on back-analysis, with measure the value contrast actually, satisfy the engineering accuracy, express that the acquisition get ground should the dint field is basic and reasonable.From the ground should the dint field is anti- to play the result to reckon the underground factory premises hole rooms to round ground in the rock stability calculation scope should dint field;Set up underground hole roomses and round the rock and break three several models of displacements of the layer;Carried on the mesh to divide the line to the model;Carry on notthe line solve, looking in to open to dig after computing the be over cause of should the dint, move heavy distribute and the breakage section to distinguish analyse the cloth circumstance.In addition, still discussed to spray the anchor man to pay to protect, open to dig the way, this model , the strength theories and break the layer to round the influence of the rock stability analysis result.