Research And Application Of Safety Assessment And Early Warning Method For Asphalt Concrete Core Wall Dam Based On BIM

The safety monitoring of reservoir dams faces difficulties such as a large number of monitoring instruments,a large amount of information,and poor effectiveness of information processing and analysis methods,making it difficult for the maintenance and management of dams to meet the requirements for safety assessment and early warning.In view of this,this article utilizes modern information technology,combined with BIM technology,and introduces dam safety assessment analysis methods and neural network model prediction methods to establish a BIM based asphalt concrete core wall dam safety assessment and warning system.The main research content is as follows:(1)A safety assessment method for asphalt concrete core wall dams has been established.Select an improved POT(Peaks over Threshold)model to determine the danger threshold and risk threshold of the dam,and combine Analytic Hierarchy Process and Fuzzy Mathematics to establish a dam safety evaluation system and calculation process for the evaluation method,achieving rapid assessment of dam safety.Verify the feasibility of this method through analysis of measured data.(2)A safety warning method for asphalt concrete core wall dams has been established.Analyze the principles and characteristics of wavelet denoising method and LSTM model,and propose a WDM-LSTM(Wavelet Denoising Method Long Short Term Memory)prediction model for predicting future monitoring data of dams.Establish the calculation process of the WDM-LSTM prediction model for the dam,and verify the applicability of this method through analysis and comparative analysis of measured data.(3)Research and design the technical framework,front-end and back-end development framework,and database framework of the dam safety assessment and early warning system.Design the four major functional modules of the dam safety assessment and early warning system to achieve BIM visualization management,data management,safety assessment,and safety early warning functions.Establish a 3D model using Revit modeling software,and use the BIMface cloud platform for lightweight processing to establish a BIM visualization management page.Combining safety assessment and warning methods,establish a safety assessment and warning module,construct a monitoring data management module,and complete the design of a BIM based asphalt concrete core dam safety assessment and warning system.(4)Taking the asphalt concrete core dam of Wushan Miaotang Reservoir as an engineering case,a BIM based safety assessment and early warning system for asphalt concrete core dam was developed,combining BIM technology and Java voice.The various platforms,page design,functions,operation methods,and implementation methods of the system were introduced.