基于优势关系粗糙集的堆石坝施工成本偏差分析

发布时间：2018-02-16 10:08

本文关键词： 堆石坝成本控制粗糙集优势关系偏差分析　出处：《水电能源科学》2017年03期 　论文类型：期刊论文

【摘要】：针对堆石坝施工成本控制难、偏差分析时信息利用率低的问题,提出了基于优势关系粗糙集的堆石坝施工成本偏差分析方法。该方法在选取成本控制指标的基础上,对指标的历史数据进行预处理,构建成本序决策信息系统,利用基于优势关系的粗糙集方法得到各成本指标的重要度,进行属性约简,获取主要指标偏差与总成本偏差之间的关联规则,预测成本偏差变化趋势,以制定成本控制策略。将当期的成本信息并入下期决策系统,参与偏差分析,可实现成本的动态控制。实例应用结果表明,指标重要度符合客观规律,规则与检验数据一致,能为堆石坝施工成本控制提供决策支持。
[Abstract]:Aiming at the problem of difficult construction cost control and low information utilization ratio in rockfill dam construction, a construction cost deviation analysis method of rockfill dam based on advantage relation rough set is put forward, which is based on the selection of cost control index. The historical data of the index are preprocessed, the cost order decision information system is constructed, the importance degree of each cost index is obtained by using the rough set method based on the advantage relation, and the attribute reduction is carried out. The association rules between the main index deviation and the total cost deviation are obtained, and the trend of the cost deviation is predicted in order to formulate the cost control strategy. The cost information of the current period is incorporated into the next decision system to participate in the deviation analysis. The application results show that the index importance conforms to the objective law, the rules are consistent with the test data, and can provide decision support for the construction cost control of rockfill dam.
【作者单位】：三峡大学水利与环境学院;三峡大学水电工程施工与管理湖北省重点实验室;
【基金】：国家自然科学基金项目(51509144) 2014年水电工程施工与管理湖北省重点实验室(三峡大学)开放基金(2014KSD07) 三峡大学科研启动基金(1110014)
【分类号】：TV512

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