Research On Three Dimensional Intelligent And Dynamic Optimization Management Method For Expressway Construction

In order to promote the development of the highway,in the "13th Five-Year" plan,the government proposes to accelerate the construction of the national highway network.In this period,the government will be committed to improve the network density and service level of expressway in the Yangtze River Economic Zone and the Beijing-Tianjin-Hebei region and to promote the expansion and transformation of the busy and congested sections of expressway.What's more,the mileage of the newly built and rebuilt expressway will be about 30 thousand km.This will be a centralized period of expressway construction.However,the difficulty of construction organization is greatly increased because of too many spots,long lines,complicated engineering geological conditions,demanding technological level and the concurrent construction of multi-project in long distance.Therefore,establishing the BIM intelligent optimal management software system by using the 3D dynamic display technology can intuitively display the construction process,help constructors to find the difficult points and to make plans in time,and facilitate leaders to make decisions at any time and in any place.First,a static and safe static target model of the construction schedule is established.On the basis of collecting the data of similar construction period,the artificial BPNN intelligent neural network is used to optimize the progress target of the whole line,each section and the key control project,and the historical data database of the safety control,cause and Countermeasure of the construction period is set up.And progress early warning system.On the basis of collecting the data of similar project safety data,the artificial BPNN intelligent neural network is used to determine the potential risk position,type and frequency of the whole highway,and the "Hayin rule" principle is used to determine the risk points,risk types and key control parts of the proposed project,and to establish the Countermeasures for the cause of safety problems.Data database,security early warning system and safety early warning response system.Then the dynamic optimization model of the construction progress safety of the expressway is set up,the control period of the safety of the construction progress is determined,the dynamic control system of PDCA is constructed,the plan target of each control cycle is determined,the system of the period statistical report is set up and the Safety Statistics Report system is constructed by the Hayin rule,and each of them is counted in time.In order to update and optimize the original database system in time,we can control the actual data of the safety and carry on the comparative analysis and find out the problems,the timely warning and the emergence of new problems,causes and countermeasures.Finally,the BIM 3D dynamic optimization assistant management system of the whole highway is set up,the system platform is developed on the basis of JAVA language,and the 3D model of the expressway is established by BIM modeling technology and loaded into the platform.The MySQL database is used to store the various databases of progress.The goal of intelligent early warning and intelligent decision can be achieved through comparison.