Study on dynamic scheduling of prefabricated building construction process based on digital twin
Aiming at the problem that the scheduling program implementation has many influencing factors and cannot be adjusted in time during the construction process of prefabricated buildings,a dynamic scheduling method for the construction process of prefabricated building projects based on digital twin was proposed.Firstly,the construction process digital twin scheduling framework was established.On this basis,combined with the construction characteristics of prefabricated building and the requirements of the digital twin model,the basic construction activities,digital twin coding system,and process construction time were analyzed and studied,the prefabricated building construction scheduling digital twin dummy model was constructed,and the process of generating the scheduling plan for prefabricated building was described in detail.Then,based on the analysis of prefabricated building construction scheduling content,taking the shortest project construction duration as the scheduling goal,and considering the construction component process sequencing and resource selection problems,the prefabricated building construction scheduling model was constructed,and a genetic algorithm with two-layer coding was designed to solve it.Finally,taking the structural body of a prefabricated building project as an example,the generation of the scheduling plan and the dynamic scheduling after the emergence of uncertainties in its construction process were simulated,and visualization of the prefabricated construction scheduling platform was used.The results show that the proposed method combines the dynamic optimization of the scheduling plan service and the key technologies such as the analysis of the construction schedule deviation,which realizes the optimization of the construction scheduling plan of the prefabricated building,assists sustainable and dynamic construction process decision-making,and verifies the effectiveness and feasibility of the method.
digital twinprefabricated buildingdynamic schedulingconstruction schedulingBIMgenerating service
NETL
NSTL
万方数据
