基于多工作面的铁路特长隧道施工进度计划优化  

Optimization of Construction Schedule of the Railway Extra-long Tunnel Based on Multiple Working Faces

作　　者：周国华[1] 张华珂 ZHOU Guohua;ZHANG Huake(School of Economics and Management,Southwest Jiaotong Universitiy,Chengdu 610031,China)

机构地区：[1]西南交通大学经济管理学院,四川成都610031

出　　处：《运筹与管理》2023年第9期21-27,共7页Operations Research and Management Science

基　　金：国家自然科学基金重大专项(71942006);中国国家铁路集团有限公司科技研究开发计划(N2020G039)。

摘　　要：特长隧道通常采用多工作面施工,解决带软逻辑的施工进度计划优化问题是特长隧道施工组织策划的重要难题。基于软逻辑关系,结合隧道工程施工特性,构建了截止工期约束下施工成本最小化的特长隧道施工进度计划优化模型;针对问题求解的复杂性,对遗传算法进行改进,设计了自适应的交叉、变异概率和改进的灾变算子避免算法陷入局部最优,同时优化了变异策略以增强局部搜索能力;采用多个特长隧道算例对模型及算法进行验证,实验结果表明:所提模型对于特长隧道施工进度计划优化具有可行性和有效性;改进的遗传算法在应对大规模问题时仍能表现出较好的全局寻优能力和稳定性。研究成果能够为施工单位编制特长隧道施工进度计划、决策辅助坑道数量和位置等提供有益参考。With the maturity of the construction technology,the number of extra-long tunnels built in China is gradually increasing.Extra-long tunnels are usually the key activities in a single project due to their long duration,and their duration has a direct impact on the single project.At the same time,the construction cost of long tunnels is high,and balancing the duration and cost is an important goal in the preparation of the construction schedule of long tunnels.In the current situation,the preparation of extra-long tunnel construction schedule is still based on manual experience,and the duration and cost are not yet finely and intelligently managed,which is a pain point that needs to be solved at this time of rapid construction of extra-long tunnels.The extra-long tunnel is usually divided into several sections for parallel construction to shorten the construction period,and the parallel construction requires additional working surfaces by excavating auxiliary tunnels outside the tunnel.Firstly,the number of working faces directly affects the duration and cost of the project.Secondly,when the number of working faces is constant,where to excavate auxiliary tunnels and where to increase working faces will also have an impact on the construction period and cost.Extra-long tunnels are usually regarded as key activities,and their construction period cannot be delayed.In this case,how to save costs while meeting the construction period requirements is a problem worthy of attention.When the tunnel realizes multi-face construction by excavating auxiliary tunnels,the sequence of each construction unit is not fixed but can be adjusted.The logical sequence of construction is soft logic,and the construction sequence will affect the duration and cost of the project.The trade-off model of duration and cost is constructed to minimize the project cost under the premise of meeting the duration.The discrete time-cost trade-off problem is NP-hard,and the addition of soft logic increases the difficulty of solving it.Therefore,the opera

关 键 词：进度计划 隧道工程 多工作面 软逻辑 遗传算法 

分 类 号：TU722[建筑科学—建筑技术科学]