摘要
泥浆循环系统管路磨损会导致盾构非正常停机,进而影响施工进度并带来安全风险,是泥水盾构施工过程中必须重视的一个问题。结合南京地铁10号线盾构隧道工程实例,针对不同材质、流速、泥浆密度及泥浆中固体颗粒大小等因素对泥浆输送管道的磨损影响进行了研究,通过与实际检测数据对比分析,针对性地提出了减小管路磨损的技术措施,为泥浆循环系统合理化设计、提高施工效率和保证施工安全提供了参考和借鉴。
The pipe abrasion of slurry circulation system will lead to an abnormal stop of shield tunneling and construction risk. Therefore,the influencing factors,including slurry material,slurry transportation speed,slurry density and solid particle size,of slurry pipe abrasion of slurry shield used in Line No. 10 of Nanjing Metro are studied.And then some effective countermeasures for reducing the pipe abrasion of slurry circulation system are proposed by means of comparison between actual testing results and study results,so as to provide reference for rational design of slurry circulation system by improving the construction efficiency and safety.
引文
[1]张学军.城市大直径泥水盾构施工辅助设备配备[J].隧道建设,2008,28(3):378-381.(ZHANG Xuejun.Matching of ancillary construction equipment for largediameter slurry shields used in urban areas[J].Tunnel Construction,2008,28(3):378-381.(in Chinese))
[2]李有兵.大直径泥水平衡盾构穿越上软下硬地层的施工技术研究[D].成都:西南交通大学,2014.(LI Youbing.A study on construction technology of large diameter slurry balance shied tunneling in upper-soft lowerhard ground[D].Chengdu:Southwest Jiaotong University,2014.(in Chinese))
[3]杨爱军,张宁川,王杜娟,等.砂卵石地层气垫式泥水盾构的优化[J].隧道建设,2013,33(4):331-335.(YANG Aijun,ZHANG Ningchuan,WANG Dujuan,et al.Optimization of air-cushion-type slurry shield to cope with sandy cobble strata[J].Tunnel Construction,2013,33(4):331-335.(in Chinese))
[4]曾垂刚.泥水盾构泥浆循环技术的探讨[J].隧道建设,2009,29(2):162-165.(ZENG Chuigang.Discussion on slurry circulation technology of slurry shield machine[J].Tunnel Construction,2009,29(2):162-165.(in Chinese))
[5]张颖.盾构法施工大漂石处理技术[J].隧道建设,2011,31(4):500-503.(ZHANG Ying.Boulder treatment technology in shield tunneling[J].Tunnel Construction,2011,31(4):500-503.(in Chinese))
[6]洪开荣.广深港大断面特长水下盾构隧道的技术难点分析[J].隧道建设,2007,27(6):1-3.(HONG Kairong.Analysis of technical difficulties of supper-long underwater shield-bored tunnels with large cross-sections:Case study on Shiziyang Tunnel on Guangzhou-Shenzhen-Hong Kong passenger-dedicated railway[J].Tunnel Construction,2007,27(6):1-3.(in Chinese))
[7]刘东.繁华城区富水砂卵石地层大直径泥水盾构隧道施工关键技术[J].隧道建设,2011,31(1):76-81.(LIU Dong.Key construction technology for larger diameter slurry shield tunneling in water-rich sandy gravel strata in busy urban area[J].Tunnel Construction,2011,31(1):76-81.(in Chinese))
[8]邹伟生,吴桂凤,黄家祯.长距离浆体管道输送管壁磨蚀研究[J].矿业工程,2004,24(2):1-3.(ZOU Weisheng,WU Guifeng,HUANG Jiazhen.The study on pipe wall abrasion in long distance slurry pipeline transportation[J].Mining and Metallurgical Engineering,2004,24(2):1-3.(in Chinese))
[9]钱桂华,曹晰.浆体管道输送设备使用选型手册[M].北京:冶金工业出版社,1995.(QIAN Guihua,CAO Xi.Selection manual for transportation equipment of slurry pipe[M].Beijing:Metallurgical Industry Press,1995.(in Chinese))
[10]费祥俊.浆体与粒状物料输送水力学[M].北京:清华大学出版社,1994.(FEI Xiangjun.Hydraulics of slurry and granular materials transportation[M].Beijing:Tsinghua University Press,1994.(in Chinese))
[11]张钦礼,郑晶晶,王新民,等.充填管道磨损形式及机理分析研究[J].金属矿山,2009(5):115-118.(ZHANG Qinli,ZHENG Jingjing,WANG Xinmin,et al.A study of the abrasion form and mechanism of backfilling pipelines[J].Metal Mine,2009(5):115-118.(in Chinese))