长江科学院院报2017，Vol.34Issue(11)：39-43,5.DOI:10.11988/ckyyb.20160740
基于马尔科夫过程的高堆石坝施工度汛决策模型
Decision-making Model for High Rock-fill Dam Construction in Flood Period Based on Markov Process
摘要
Abstract
Time variation of water-retaining risk and uncertainty of filling progress aggravate the difficulties in making decision for high rock-fill dam construction in flood period.Accordingly,the water retaining risk of high rock-fill dam was calculated by stochastic simulation,and then was classified into three risk states which could indicate the decision actions.With the objective of minimizing the cost of the entire construction process in flood season,the critical factors such as incoming flood flow,filling schedule and cost of decisions were taken into account to build a decision-making model based on Markov Processes.By using this model,the flood prevention strategies,cost functions and transfer probability for each risk degree were analyzed.After testing the Markov property,the optimal strategy for each state at current time and a sequential risk decision path in this process can be predicted by strategy iteration method.A study case shows that the adjustment results by the proposed model consists well with the actual construction plan change for water retaining elevation.The results offer reference for timely and accurate flood prevention scheme in construction period.关键词
高堆石坝/施工度汛/风险决策/马尔科夫过程/成本最小化Key words
high rock-fill dam/construction in flood period/risk decision making/Markov Process/cost minimizing分类
建筑与水利引用本文复制引用
刘潋,胡安娜,宋玲,罗舒..基于马尔科夫过程的高堆石坝施工度汛决策模型[J].长江科学院院报,2017,34(11):39-43,5.基金项目
国家自然科学基金项目(51509143) （51509143）
长江科学院开放研究基金项目(CKWV2016398/KY) （CKWV2016398/KY）
