城市隧道盾构废弃泥浆长距离管道输送技术研究  

Research on Long-Distance Pipeline Transport Technology for Waste Slurry From Urban Shield Tunneling

作　　者：田久晖 程华强 王费新[3] 刘汨莎 刘功勋[3] TIAN Jiuhui;CHENG Huaqiang;WANG Feixin;LIU Misha;LIU Gongxun(Wuhan Municipal Construction Group Co.,Ltd.,Wuhan 430023,Hubei,China;Wuhan Bridge Engineering Co.,Ltd.,Wuhan 430061,Hubei,China;National Engineering Research Center of Dredging Technology and Equipment,Shanghai 200120,China)

机构地区：[1]武汉市市政建设集团有限公司,湖北武汉430023 [2]武汉市桥梁工程有限公司,湖北武汉430061 [3]疏浚技术装备国家工程研究中心,上海200120

出　　处：《隧道建设(中英文)》2025年第1期179-185,共7页Tunnel Construction

基　　金：住房和城乡建设部科技示范项目(S20200338)。

摘　　要：为解决城市隧道盾构废弃泥浆就地脱水场地受限、运输车直接外运成本高等问题,以武汉两湖隧道工程为例,研究长距离管道输送方案的可行性。首先进行室内试验和现场数据收集,对比分析并推荐高精度摩阻损失计算公式,基于能耗分析,推荐浆体输送密度;在此基础上,提出长距离管道输送船舶配置方案,计算理论产量,优化推荐施工参数,并进行方案论证。研究表明:1)盾构废弃泥浆输送阻力分析计算应考虑泥浆流变特性的影响,较高输送密度有利于降低输送能耗;2)盾构废弃泥浆采用长距离管道输送方案具工程可实施性,多泵接力输送方案可满足本工程盾构废弃泥浆的外运需求;3)选取合理的施工参数,可在保证废弃泥浆输送产量的同时,有效降低施工能耗,扩展输送系统工程适应能力,提升综合施工效率。The waste slurry generated by urban shield tunneling faces challenges such as limited dewatering sites and high direct transportation costs by vehicles.A case study of the Lianghu tunnel in Wuhan,China,is conducted to evaluate the feasibility of the long-distance pipeline transportation of slurry.Laboratory tests and field data collection are carried out,and a high-precision friction loss calculation formula is recommended.Based on energy consumption analysis,the optimal slurry conveying density is proposed.Subsequently,a long-distance pipeline transport configuration scheme is developed,the theoretical output is calculated,recommended construction parameters are optimized,and the scheme′s feasibility is demonstrated.The results reveal the following:(1)The influence of slurry rheological properties should be considered when calculating friction resistance,as maintaining a suitable high concentration reduces transport energy consumption.(2)Long-distance pipeline transport technology for shield tunneling waste slurry is feasible from an engineering perspective:a multi-booster-pump transport scheme effectively meets waste slurry transport requirements.(3)Selecting appropriate operating parameters ensures effective waste slurry transport,reduces construction energy consumption,enhances the adaptability of the transport system,and improves construction efficiency.

关 键 词：盾构隧道 废弃泥浆 管流 摩阻损失 单位能耗 接力泵 

分 类 号：U45[建筑科学—桥梁与隧道工程]