基于AHP的建筑废料分类回收方案决策方法研究

AHP-Based Decision Method for Sorting and Recycling of the Construction and Demolition Waste

建筑废料分类回收是建筑废料管理计划中的关键环节和工作内容。为了研究废料回收方案的决策问题,文章通过对各项影响因素的系统综合分析,运用层次分析法构建建筑废料分类回收方案的决策模型,并借助Expert Choice软件进行快速的计算从而实现方案优选。研究证明,层次分析法和Expert Choice软件运用于建筑废料分类回收方案决策问题的研究是可行的,结果是合理的。在现场分类回收的双通道直接回收方案、单通道直接回收方案和集中式回收方案中以双通道的直接分类方式为最优;在场外分类回收方式相对于现场方式的比较需要从经济性角度做进一步的研究。

Sorting and recycling of the construction and demolition waste（CD waste） are the key activities for the CD waste management planning.The study used the Analytical Hierarchy Process（AHP） method to construct a decision system for the CD waste sorting and recycling alternatives with the Expert Choice software,which is proved to be effective.The research shows that the alternatives of direct on-site recycling with two refuse chutes is the best among three on-site sorting and recycling alternatives,the other two alternatives of which are direct sorting with two refuse chutes,and direct sorting with on refuse chute and central sorting and recycling.It needs a further study for the off-site method in terms of the economic aspect compared with the on-site methods.