摘要
通过分析工程对于工期、应力、防洪的要求建立过水围堰的多目标决策模型,采用单纯形法且不断调整摄动权重来求得pareto解。通过近似理想点排序法,对不同施工速度对应的非劣解集进行排序,选择每个施工速度对应的最优决策方案,根据施工速度限制选出最终决策方案。运用该模型采用关键工作窗口期的限制条件模拟了过水围堰工期限制,并根据围堰的施工技术特点分析了浇筑强度与单位造价之间的关系,确定较优的施工速度后得到最终决策方案。该模型考虑了施工方的能力限制,有利于设计方综合施工方能力后得出较优方案。
A multi-objective decision-making model of the overflow cofferdam was established based on the analysis of the requirements for construction time,stress,and flood control,then the pareto solution was obtained using the simplex method by constantly perturbing the weights.The approximate aspiration dot arrange method was used to sort the non-inferior solution sets corresponding to different construction speeds,through which the optimal decision-making plan for each construction speed was determined,and the final decision-making plan was then selected according to the construction speed limit.This model uses the constraints of the critical activity window period to simulate the construction time limit of the overflow cofferdam,and analyzes the relationship between the pouring intensity and the unit cost according to the construction technical characteristics of the cofferdam,and obtains the final decision-making plan after determining the optimal construction speed.This model takes into account the capbility constraints of the construction party,which is conducive to the decision-making of the design party.They can formulate an optimized scheme after considering the capabilities of the construction party.
作者
董正宇
侍克斌
白现军
刁海鹏
DONG Zhengyu;SHI Kebin;BAI Xianjun;DIAO Haipeng(College of Hydraulic and Civil Engineering,Xinjiang Agricultural University,Urumqi 830052,China;Gezhouba Xinjiang Engineering Co.,Ltd.,Urumqi 830000,China)
出处
《水资源与水工程学报》
CSCD
北大核心
2021年第1期151-157,共7页
Journal of Water Resources and Water Engineering
基金
新疆水利科技专项资金项目(T201801)
“水利工程重点学科”研究项目(SLXK-YJS-2018-03)
自治区高校科研计划重点项目(XJEDU2016I022)。
关键词
过水围堰
多目标优化
施工导流
隧洞导流
贫胶混凝土围堰
overflow cofferdam
multi-objective optimization
construction diversion
tunnel diversion
cemented sand
gravel and rock(CSGR)cofferdam
