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The Slope Wireless Remote Automatic Monitoring And Safety Early Warning

Posted on:2014-07-30Degree:MasterType:Thesis
Country:ChinaCandidate:X J ChenFull Text:PDF
GTID:2250330401987012Subject:Traffic and Transportation Engineering
Abstract/Summary:PDF Full Text Request
Due to the impact of natural or man-made disasters, slope brings very serious lossand damage, It is very difficult to urgently solve the ancient and complex problem forengineering researchers. At present, with the rapid development of mining, waterconservancy, transport and construction engineering, mine slope, dam abutment slope,reservoir bank slope, railway and highway slope emergence. Therefore, it is imminent toimplement the slope monitoring and set up a safe forecasting slope system.In the past, researchers generally use the traditional monitoring method.Because itcosts so much and need artificial operation repeately, data can not be timely feedback,new monitoring technology will replace the traditional monitoring method. Newmonitoring equipment and technology has more advantages in timeliness and theautomation level. So the paper chooses the automatic remote laser slope monitoringsystem for studies.The main research contents: Laser ranging sensor for slope monitoring, dynamicsimulation of slope deformation by using the software of PLAXIS, back analysis ofrock mechanics parameters by BP neural network, and the strength subtraction toestablish slope safety early-warning model.Progress has been made in the following aspects:①First of all, based on theinvestigation and analysis on domestic and foreign, monitor the slope surfacedisplacement using laser ranging sensor system;②Combining the mechanicalparameters of the uniform design with the commercial finite element software PLAXIS,the papepr calculates the displacement numerical, and analyzes the calculated numericaland the measured numerical;③The paper uses the calculated numerical andcorresponding mechanical parameters as input and output samples to train and simulateby establishing BP neural network;④Finally, with the plastic analysis module and Phi/creduction module of the finite element software PLAXIS, it calculates the strengthparameters, and obtaine calculated displacement and safety factor, and according to theprofile of surface displacement of slope monitoring point and safety fator, the paperformulate preventive measures.The safety early warning model is established combing the laser wireless remoteautomatic monitoring with finite element numerical analysis. It can intuitivelyunderstand the dynamic change by the slope displacement, clearly grasp the risk level of slope. The research can provide a very good reference value for slope monitoring andsafety early warning.
Keywords/Search Tags:Laser ranging, Slope monitoring, Uniform design, BP neural network, Strength reduction, Safety early warning
PDF Full Text Request
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