Development Of BIM-based Dynamic Analysis Information System At Tunnel Entrance In Slope

The tunnel entrance in slope is often a section with extremely complicated geological conditions,and the construction is more difficult.It is of vital importance to adopt effective construction methods to ensure smooth entry into the tunnel and ensure the safety of tunnel construction and operation.With the advent of the era of information technology in the 21st century,the value and role of information technology in the civil engineering industry have become increasingly prominent.The development of BIM technology in China is changing rapidly and has achieved outstanding results in engineering applications.However,the application of BIM technology in the construction of tunnel entrance in slope openings is not yet mature,and BIM has not been able to provide scientific guidance in the construction of tunnel entrance in slope.This article mainly studies the application of BIM technology in the construction process of the tunnel entrance in slope,and completes the development of the BIM-based dynamic analysis information system of the tunnel entrance in slope..The specific research contents are as follows:(1)Revit API and C#language were used for the secondary development of Revit,the parametric modeling of the tunnel entrance in slope based on the secondary development of Revit was implemented,and a set of BIM efficient modeling methods was discussed.No need to manually and repeatedly modify the traditional parametric form for efficient and accurate component model,avoiding a lot of repetitive work and greatly reducing the error rate,providing a model basis for the application of BIM in the tunnel entrance in' slope(2)Discuss the realization of dynamic construction information management based on BIM in tunnel entrance,through the management of engineering design information,construction progress information,monitoring and measurement information,dynamic design information during the design and construction phase of the tunnel entrance Analyze related construction theories,visualize project status and query engineering information with the help of BIM.Combining BIM and construction information to realize the use of BIM to manage dynamic construction,and provide reference for design and construction personnel to use BIM science to manage the dynamic construction information of tunnel entrance in slope.(3)Study the information model of the tunnel entrance in slope based on the FICK standard,expand the spatial subclass expression of the IFC slope spatial structure,and add the slope physics to the original IFC standard according to the inheritance relationship of the IFC standard file The definition of elements has also effectively expanded the information properties of slope parameters.Use the monitoring information time series based on the CS-RF algorithm to predict the slope settlement monitoring value,and use the IFC read-write function to write the monitoring historical data and the early warning data information in the settlement prediction value into the IFC file,forming a form based on the IFC standard Information model of tunnel entrance in slope.(4)In-depth analysis and discussion of the functional requirements of the dynamic analysis information system of tunnel entrance in slope based on BIM,formulate the system development process,determine the system requirements analysis,formulate the overall functional framework,determine the development platform selection,and carry out each functional module Program development,research and development of a BIM-based dynamic analysis information system for the tunnel entrance in slope that is easy for first-line design and construction management personnel,and the actual engineering project was used for trial operation,and a relatively good information analysis and management effect was obtained,which verified this article Applicability of system development methods and procedures.The technology developed in this paper provides a certain reference for the use of BIM to scientifically guide the design and construction of slope tunnel openings.Through this system,BIM is applied to the field of geotechnical engineering,giving full play to the huge advantages of information construction.