Research On Expressway Slope Monitoring System Based On BIM Technology

High slope engineering in mountainous areas occur frequently.Due to the influence of natural environment and construction,the original geological equilibrium conditions are often destroyed.Under the harsh natural conditions such as rainstorm,slope is prone to instability,landslide and other road geological hazards.In order to grasp the slope stability condition in time,the remote automatic monitoring of slope is studied.In recent years,our country has vigorously promoted the application of BIM technology in the field of expressway.With its advantages of high efficiency and information sharing,BIM technology will be widely used in the field of expressway.Based on the background above,the expressway slope monitoring system based on BIM technology is studied by combining BIM technology with remote automatic monitoring of slope.The three functions of the expressway slope monitoring system based on BIM technology are studied.They are the visualization function of the content of the slope monitoring based on BIM technology,the data acquisition and transmission function of the slope monitoring,and the data display function of the slope monitoring based on BIM technology.In order to realize the visualization function of slope monitoring content based on BIM technology,the theory and technology of slope monitoring modeling based on BIM technology are studied to realize the visualization function of slope monitoring content,including the optimization of technical route based on IFC standard and the technical comparison of the application of Revit and Civil 3D in expressway slope.In order to realize the functions of data acquisition and transmission of slope monitoring,the data acquisition module is designed,the data transmission structure of monitoring is constructed,the lightning protection system and power supply system are designed.In order to realize the data display function of slope monitoring based on BIM technology,Revit is selected as the BIM software.Through the secondary development of Revit,the Revit has the data display function of slope monitoring.Taking the K64+100～K64+200 section of Handan section of Taihang Mountain Expressway as an example,the parameterized three-dimensional visualization model of slope monitoring content is built by Revit,and the test slope is monitored on the spot.The monitoring data is displayed by the expanded function of Revit secondary development.The results show that the expressway slope monitoring system based on BIM technology has certain operability.Combining BIM technology with remote slope monitoring has a positive role in timely grasping and visualization of slope stability condition.