资源受限项目调度模型的施工进度管理

综合资源受限项目调度问题的研究和实际建设工程项目施工进度管理的需求,提出广义优先关系下的差分进化人工蜂群算法的资源受限项目调度模型.其中差分进化算法用于处理交叉变异问题,人工蜂群算法用于处理寻优过程的各阶段推进,并以广义优先关系串行调度产生方案获得的总工期作为适应度值确定优先级编码.根据实际工程项目的应用进一步提出由逆向反推计算关键路径、关键任务的资源及历时优化、非关键任务的资源均衡等组成的资源约束进度管理方法.在eclipse环境下用Java语言进行编程,快捷准确地获得进度和资源相关的资源约束进度计划、约束资源分布情况,以及资源与工期的优化方案.

Construction Schedule Management Using Resource Constrained Project Scheduling Model

Combining the study of resource constrained project scheduling problem with the demand of construction schedule management in real projects, this paper integrates a hybrid algorithm with generalized precedence relations (GPRs) scheduling model, and then proposes better solutions for resource constrained schedule management. The hybrid algorithm presents crossover and mutation operations from differential evolution (DE) with artificial bee colony (ABC) to balance exploration and exploitation phases of the optimization process. Furthermore, the proposed model applies a serial method with generalized precedence relations to reflect individual vector priorities into the task schedule to calculate project duration. In order to generalize the use of most real world construction projects, the resource constrained schedule management contains some methods by calculating critical paths, applying resource leveling of non critical tasks, using correlation analysis to tradeoffs between time and cost of critical tasks. In the eclipse environment of Java programming language, it could obtain stable and accurate results, which project managers may use to make optimal decisions by resource constrained schedule, resource allocation, the optimized schemes of resources and duration.