福州地铁过江通道泥水盾构弃浆在壁后注浆材料中的再利用
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摘要
采用泥水盾构掘进隧道会产生大量的废弃泥浆,其处理和运输不仅需花大量的费用,还有可能产生严重的环境污染问题。基于此,文章以福州地铁厚庭—桔园洲区间隧道泥水盾构下穿乌龙江施工为例,研究了利用泥水盾构废弃泥浆配制壁后注浆材料的可行性,采用正交试验对影响砂浆性质的水胶比、粉灰比、砂胶比、泥浆比重4个因素进行了综合优化,并探讨了它们对壁后注浆材料的影响规律。结果表明:(1)水胶比和泥浆比重是影响壁后注浆砂浆稠度、流动度和泌水率的主要因素;(2)水胶比和粉灰比是影响其凝结时间的主要因素;(3)水胶比、胶砂比和泥浆的比重是影响砂浆密度的主要因素;(4)通过控制泥浆比重和水胶比可以配制出工作性能和强度性能良好的壁后注浆材料。
A large amount of waste slurry would be generated in slurry shield tunnelling,and it will result in high cost of handling and transportation,even more serious pollution problem.Based on the Houting-Juyuan running tunnel section of the Fuzhou metro,which was driven by a slurry shield underneath the Wulong River,it studied the feasibility to prepare the backfilling grouting material with waste slurry generated from slurry shield excavation,optimized the four factors affecting mortar performance by the orthogonal test,discussed the effect law of water-cement ratio,flyash-cement ratio,cement-sand ratio and specific gravity of slurry on backfilling grouting material.The results show:1) water-cement ratio and specific gravity of slurry are the main factors affecting mortar consistency,fluidity and bleeding rate;2) water-cement ratio and flyash-cement ratio are the main factors affecting setting time;3)water-cement ratio,cement-sand ratio and specific gravity of slurry are the main factors affecting mortar density;4)by controlling specific gravity of slurry and water-cement ratio the backfilling grouting material can be prepared with good working and strength performances.
A large amount of waste slurry would be generated in slurry shield tunnelling,and it will result in high cost of handling and transportation,even more serious pollution problem.Based on the Houting-Juyuan running tunnel section of the Fuzhou metro,which was driven by a slurry shield underneath the Wulong River,it studied the feasibility to prepare the backfilling grouting material with waste slurry generated from slurry shield excavation,optimized the four factors affecting mortar performance by the orthogonal test,discussed the effect law of water-cement ratio,flyash-cement ratio,cement-sand ratio and specific gravity of slurry on backfilling grouting material.The results show:1) water-cement ratio and specific gravity of slurry are the main factors affecting mortar consistency,fluidity and bleeding rate;2) water-cement ratio and flyash-cement ratio are the main factors affecting setting time;3)water-cement ratio,cement-sand ratio and specific gravity of slurry are the main factors affecting mortar density;4)by controlling specific gravity of slurry and water-cement ratio the backfilling grouting material can be prepared with good working and strength performances.
引文
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[9]张亚洲,夏鹏举,魏代伟,等.南京纬三路过江通道泥水处理及全线路废弃土再利用技术[J].隧道建设,2015,35(11):1229-1234.ZHANG Yazhou,XIA Pengju,WEI Daiwei,et al.Slurry Treatment and Waste Muck Recycling Use in Construction of Weisanlu Yangtze River Crossing Tunnel in Nanjing[J].Tunnel Construction,2015,35(11):1229-1234.
[10]林文书,王红喜,彭碧辉,等.不同地层盾构泥砂对制备同步注浆材料性能影响研究[J].隧道建设,2013,33(9):715-719.LIN Wenshu,WANG Hongxi,PENG Bihui,et al.A Study on Producing Synchronous Grouting Materials Using Muck Collected in Shield Tunneling in Different Strata[J].Tunnel Construction,2013,33(9):715-719.
[11]中华人民共和国国家标准.建设用砂:GB/T 14684-2011[S].北京:中国标准出版社,2011.National Standard of the People′s Republic of China.Sand for Construction:GB/T 14684-2011[S].Beijing:Standards Press of China,2011.
[12]中华人民共和国国家标准.水泥胶砂流动度测定方法:GBT-2419-2005[S].北京:中国标准出版社,2005.National Standard of the People′s Republic of China.Test Method for Fluidity of Cement Mortar:GBT-2419-2005[S].Beijing:Standards Press of China,2005.
[13]中华人民共和国国家标准.普通混凝土拌合物性能试验方法标准:GB/T50080-2002[S].北京:中国建筑工业出版社,2002.National Standard of the People′s Republic of China.Standard for Test Method of Performance on Ordinary Fresh Concrete:GB/T50080-2002[S].Beijing:China Architecture&Building Press,2002.
[14]吴全立.同步注浆材料配合比设计与试验研究[J].施工技术,2003,32(1):55-57.WU Quanli.Design and Experiment Study of Synchronized Grouting Material Ratio[J].Construction Technology,2003,32(1):55-57.
[15]MIKAEL WESTERHOLM,BJ?RN LAGERBLAD,SILFWERBRAND J,FORSSBERG E.Influence of Fine Aggregate Characteristics on the Rheological Properties of Mortars[J].Cement and Concrete Composites,2008,30(4):274-282.
[2]马辉,刘仁智,陈寿根,等.当前铁路隧道施工亟待解决的若干技术问题[J].现代隧道技术,2011,48(5):1-6.MA Hui,LIU Renzhi,CHEN Shougen,et al.Technique Problems Need to be Solved Urgently in Current Railway Tunnel Construction[J].Modern Tunnelling Technology,2011,48(5):1-6.
[3]姜腾,姚占虎,闵凡路.废弃黏土在泥水盾构泥浆配制中的再利用研究[J].隧道建设,2014,34(12):1148-1152.JIANG Teng,YAO Zhanhu,MIN Fanlu.Study on Cyclic Use of Waste Clay in Preparing Slurry for Slurry Shield Boring[J].Tunnel Construction,2014,34(12):1148-1152.
[4]叶飞,毛家骅,纪明,等.盾构隧道壁后注浆研究现状及发展趋势[J].隧道建设,2015,35(8):739-752.YE Fei,MAO Jiahua,JI Ming.Research Status and Development Trend of Back-filled Grouting of Shield Tunnels[J].Tunnel Construction,2015,35(8):739-752.
[5]何文锋,邓美龙,白晨光,等.地铁车站施工废弃泥浆处理方法[J].施工技术,2012,41(24):83-86.HE Wenfeng,DENG Meilong,BAI Chenguang,et al.Treatment Method for Waste Mud Produced from Construction of Metro Station[J].Construction Technology,2012,41(24):83-86.
[6]房凯,张忠苗,刘兴旺,等.工程废弃泥浆污染及其防治措施研究[J].岩土工程学报,2011,33(增2):238-241.FANG Kai,ZHANG Zhongmiao,LIU Xingwang,et al.Pollution of Construction Waste Slurry and Prevention Measures[J].Chinese Journal of Geotechnical Engineering,2011,33(S2):238-241.
[7]张忠苗,房凯,王智杰,等.泥浆零排放处理技术及分离土的工程特性研究[J].岩土工程学报,2011,33(9):1456-1461.ZHANG Zhongmiao,FANG Kai,WANG Zhijie,et al.Zero Discharge Treatment Technology for Slurry and Engineering Properties of Separated Soil[J].Chinese Journal of Geotechnical Engineering,2011,33(9):1456-1461.
[8]朱伟,闵凡路,吕一彦,等.“泥科学与应用技术”的提出及研究进展[J].岩土力学,2013,34(11):3041-3054.ZHU Wei,MIN Fanlu,LV Yiyan,et al.Subject of“Mud Science and Application Technology”and Its Research Progress[J].Rock and Soil Mechanics,2013,34(11):3041-3054.
[9]张亚洲,夏鹏举,魏代伟,等.南京纬三路过江通道泥水处理及全线路废弃土再利用技术[J].隧道建设,2015,35(11):1229-1234.ZHANG Yazhou,XIA Pengju,WEI Daiwei,et al.Slurry Treatment and Waste Muck Recycling Use in Construction of Weisanlu Yangtze River Crossing Tunnel in Nanjing[J].Tunnel Construction,2015,35(11):1229-1234.
[10]林文书,王红喜,彭碧辉,等.不同地层盾构泥砂对制备同步注浆材料性能影响研究[J].隧道建设,2013,33(9):715-719.LIN Wenshu,WANG Hongxi,PENG Bihui,et al.A Study on Producing Synchronous Grouting Materials Using Muck Collected in Shield Tunneling in Different Strata[J].Tunnel Construction,2013,33(9):715-719.
[11]中华人民共和国国家标准.建设用砂:GB/T 14684-2011[S].北京:中国标准出版社,2011.National Standard of the People′s Republic of China.Sand for Construction:GB/T 14684-2011[S].Beijing:Standards Press of China,2011.
[12]中华人民共和国国家标准.水泥胶砂流动度测定方法:GBT-2419-2005[S].北京:中国标准出版社,2005.National Standard of the People′s Republic of China.Test Method for Fluidity of Cement Mortar:GBT-2419-2005[S].Beijing:Standards Press of China,2005.
[13]中华人民共和国国家标准.普通混凝土拌合物性能试验方法标准:GB/T50080-2002[S].北京:中国建筑工业出版社,2002.National Standard of the People′s Republic of China.Standard for Test Method of Performance on Ordinary Fresh Concrete:GB/T50080-2002[S].Beijing:China Architecture&Building Press,2002.
[14]吴全立.同步注浆材料配合比设计与试验研究[J].施工技术,2003,32(1):55-57.WU Quanli.Design and Experiment Study of Synchronized Grouting Material Ratio[J].Construction Technology,2003,32(1):55-57.
[15]MIKAEL WESTERHOLM,BJ?RN LAGERBLAD,SILFWERBRAND J,FORSSBERG E.Influence of Fine Aggregate Characteristics on the Rheological Properties of Mortars[J].Cement and Concrete Composites,2008,30(4):274-282.