Monitoring And Warning For Seepage Safety Of Earth-Dam Based On BIM

With the rapid development of information technology in the engineering field,efficient management of engineering information using information technology is also being popularized in the engineering field.Earth-rock dam,as water-retaining structures in water control projects,play the role of flood control and water storage.Their seepage information management during operation is related to the safety of life and property of downstream people.In this paper,a BIM-based seepage monitoring and early warning system for earth-rock dams is mainly studied on how to create an efficient and fast information management system.The main research contents and conclusions are as follows:1、Storage and invocation of seepage information in earth-rock dam.According to various engineering drawings and engineering documents of earth-rock dam,BIM software Revit and Civil 3D are used to create components of different parts of earth-rock dam through assembly-type ideas,and then the 3D BIM model is obtained by splicing.Develop the ability of information storage and visual expression of 3D BIM model by using the parametric features and view management functions of Revit;Finally,the BIM model that can store and invoke engineering information is obtained.The information database of earth-rock dam is established by using SQL Server software to store seepage related information which is difficult to be stored and managed by BIM model.In the Visual Studio program development software,through the Win Form control design SQL database front-end interface;C#programming language is used to insert the seepage monitoring information form in the front-end interface into the Revit interface through Revit API to facilitate the integrated management of seepage information.2、Development of percolation index and real-time percolation visual inspection function for earth-rock dam.According to the similarity between the law of heat conduction and the law of seepage,the seepage of earth-rock dam at different reservoir water levels is analyzed by ANSYS finite element software thermal module,and the seepage flow is calculated,which is used as a reference to judge whether the seepage flow of earth-rock dam is abnormal.According to the theory of dam safety monitoring,a statistical model of the water level of the pressure measuring pipe with single measuring point is established,and the monitoring index of the water level of the pressure measuring pipe is drawn up by the monitoring mathematical model method to judge whether the water level of the pressure measuring pipe is abnormal.By using the water conservancy code to analyze the materials in each zone of earth-rock dam,the percolation deformation types and the allowable percolation sloperatio of each zone are obtained to judge whether the percolation slope is too high or not.Establish the monitoring family model of Revit family parameter control shape,use C# programming language,develop the monitoring function of seepage situation through ADO.NET system,Revit API and file flow command,and realize the regular import of monitoring seepage data into SQL database,the inspection and display of seepage situation and the visualization of BIM model seepage situation.3 、 Seepage anomaly warning mode for earth-rock dam.The Revit family parameter control shape and color monitoring family model is established,the judgment logic is set through the formula bar in the family parameters,the C#programming language is used,and the seepage anomaly visual warning is developed through Revit API.In other words,when seepage anomaly occurs in the BIM model,the monitoring family will display the color of the abnormal situation.Using C#language,developing the popup warning function in the seepage monitoring information form;Using C# language,through the Internet protocol,and taking the network short message sending platform as the medium,to develop the short message warning function.