摘要
构建并定义了基于时间Petri网的分级施工网络计划模型,定义了分级库所与任务变迁。在此基础上,对进度计划优化进行了研究。根据我国工程项目管理模式,为满足建筑施工进度计划优化需求,基于HNPC模型建立了一个二级网络计划优化模型;对资源约束工期优化进行了研究,给出了一种遗传算法的解决策略;以Petri网模型的变迁激发序列作为染色体进行计算,使算法和Petri网模型统一起来,并通过实例证明了采用本方法的有效性。
Based on the hierarchical network plan and the Petri net, the construction process model is constructed. The hierarchical network plan of construction based on the time petri net, hierarchical place and task transition are defined, the correctness of above two models is analyzed based on the accessibility of Petri net. The method of schedule plan optimization is studied. According to the management of construction project in our country, the two--level network optimization model is established based on the HNPC model to satisfy the optimistic demands. The construction schedule optimization under resource constraints is researched, a solution strategy based on genetic algorithm is presented. The excited sequence of transition is traded as population to be calculated, the Petri Net model and the algorithm are integrated. Finally, a case study is carried out to prove the validity of this method.
出处
《系统管理学报》
北大核心
2009年第2期193-198,共6页
Journal of Systems & Management
基金
黑龙江省科技厅资助项目(GA05A101)
关键词
施工建模
赋时PETRI网
资源约束
construction modeling
timed Petri net
resource-constrained
