摘要
合理的土石方调配一方面可以减少水土流失,降低城市中的噪音及尘土污染,另一方面也能产生良好的经济效益。目前地铁工程的土石方调配多为仅考虑空间的静态调配,脱离了施工进度。为进一步优化调配、保障工程进度、减少调配费用,达到兼顾时间与空间的动态调配效果,文章对如何构建地铁工程的土石方调配数学模型及如何进行具体求解进行了研究,借助运筹学中动态规划思想,结合地铁工程设计阶段施工组织特点,在一定的假设条件下,构建了地铁工程土石方调配数学模型,主要包括调配系统的最优值函数、约束条件、状态转移方程;结合其数学模型的特点,给出了其求解方法,并建议利用常用工具Excel构建求解表格,以供地铁工程设计阶段土石方调配参考。
On the one hand,reasonable allocation of earth and rock can reduce soil erosion,noise and dust pollution in the city,on the other hand,it also can produce good economic benefits.At present,the allocation of earthwork in metro engineering is mainly static,which is divorced from the construction schedule.In order to further optimize the allocation,ensure the project progress,reduce the allocation cost,and achieve the dynamic allocation effect considering both time and space,this paper studies how to build the mathematical model of earth and rock allocation of metro engineering and how to solve it in detail.Based on the dynamic planning idea in operation research,combined with the characteristics of construction organization in the design stage of subway engineering,a mathematical model of soil and rock allocation of subway engineering was established under certain assumptions,which mainly includes the optimal value function,constraint conditions and state transition equation of the allocation system.According to the characteristics of its mathematical model,the solution method is given,and it is suggested to use Excel,a commonly used tool,to build a solution table for the reference of soil and rock allocation in the stage of subway engineering design.
作者
朱鹏飞
鲍燕
谭云勇
Zhu Pengfei;Bao Yan;Tan Yunyong(China Railway Eryuan Engineering Group Co.Ltd.,Chengdu 610031,China;Shenzhen Metro Construction Group Co.Ltd.,Shenzhen 518026,China)
出处
《工程造价管理》
2023年第5期35-39,共5页
Engineering Cost Management
关键词
地铁工程
土石方调配
动态规划
数学模型
费用
Metro engineering
Earthwork allocation
Dynamic programming
Mathematical model
Cost
