软弱富水砂层地质条件下土压平衡盾构接收施工技术
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摘要
在软弱富水砂层地质条件下,盾构接收施工是盾构法施工过程中主要的重大风险之一,也是整个盾构施工过程中的重大难题之一。本文结合福州地铁2号线桔园洲站—洪湾站区间在软弱富水砂层中盾构接收施工,对盾构接收端头加固、降水施工、盾构接收姿态控制、二次注浆等施工工艺进行阐述,为后续类似地质盾构区间施工提供参考。
Under the geological conditions of soft and water-rich sand, the shield receiving process is one of the major risks in shield tunneling. It is also one of the most difficulties in the whole work. Based on the shield receiving operations in the soft and water-rich sand layer between Juyuanzhou Station and Hongwan Station of Fuzhou Metro Line 2, this paper expounds reinforcement of the shield receiving end, dewatering, control of the shield receiving attitude and secondary grouting, providing reference for shield tunneling in similar geological conditions in the future.
Under the geological conditions of soft and water-rich sand, the shield receiving process is one of the major risks in shield tunneling. It is also one of the most difficulties in the whole work. Based on the shield receiving operations in the soft and water-rich sand layer between Juyuanzhou Station and Hongwan Station of Fuzhou Metro Line 2, this paper expounds reinforcement of the shield receiving end, dewatering, control of the shield receiving attitude and secondary grouting, providing reference for shield tunneling in similar geological conditions in the future.
引文
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[12] 刘国楠,张远荣,肖文海.盾构过富水砂层对地表建筑物影响的研究[J].西北地震学报,2011,33(3):243-248.LIU Guonan,ZHANG Yuanrong,XIAO Wenhai.Influence of shield tunneling on the buildings above in saturated sandy stratum area[J].Northwestern Seismological Journal,2011,33(3):243-248.
[13] 张敏,郑志敏,邓棕.扩展土压平衡盾构在含水地层中的适应性[J].隧道建设,2003,(5):4-6,22.ZHANG Min,ZHENG Zhimin,DENG Zong.Study on adaptability of earth pressure balance shield in aquifers[J].Tunnel Construction,2003,(5):4-6,22.
[14] 朱考飞,张可能,毛亚军,等.浅埋盾构隧道水下岩溶处治与施工控制技术[J].探矿工程(岩土钻掘工程),2018,45(10):16-20.ZHU Kaofei,ZHANG Keneng,MAO Yajun,et al.Underwater karst treatment and construction control technology for shallow shield tunnel[J].Exploration Engineering(Rock & Soil Drilling and Tunneling),2018,45(10):16-20.
[15] 张林.超大直径泥水盾构穿堤施工技术[J].探矿工程(岩土钻掘工程),2014,41(6):80-84.ZHANG Lin.Dyke-crossing construction by slurry shield with super large diameter[J].Exploration Engineering (Rock & Soil Drilling and Tunneling),2014,41(6):80-84.
[16] 福州市轨道交通2号线工程5标段初步设计方案[R].浙江杭州:中国水电顾问集团华东勘测设计研究院,2013.Preliminary design for Lot 5 section of Fuzhou Rail Transit Line 2[R].Hangzhou Zhejiang:Hydrochina Huadong Engineering Corporation,2013.
[17] 李向红,傅德明.土压平衡模型盾构掘进试验研究[J].岩土工程学报,2006,28(9):1101-1105.LI Xianghong,FU Deming.Experimental study on excavation behaviour using model EPB shield with a diameter of 1.8m[J].Chinese Journal of Geotechnical Engineering,2006,28(9):1101-1105.
[2] 竺维斌,鞠世健.复合地层中的盾构施工技术[M].北京:中国科学技术出版社,2006.ZHU Weibin,JU Shijian.Shield tunneling technology in mixed face ground conditions[M].Beijing:China Science and Technology Press,2006.
[3] 刘建航,侯学渊.基坑工程手册[M].北京:中国建筑工业出版社,1997.LIU Jianhang,HOU Xueyuan.Excavation engineering handbook[M].Beijing:China Architecture & Building Press,1997.
[4] 杨明金.全断面强富水砂层土压平衡盾构施工技术[J].山东交通科技,2012,(1):31-33.YANG Mingjin.Earth pressure balance shield construction technology in full section strong water-rich sand stratum[J].Shandong Jiaotong Keji,2012,(1):31-32.
[5] 江招胜,郭广才,黄威然.富水砂层中土压平衡盾构施工的技术措施[J].城市轨道交通研究,2006,9(7):58-60.JIANG Zhaosheng,GUO Guangcai,HUANG Weiran.EPB excavating technology in watered sandy stratum[J].Urban Mass Transit,2006,9(7):58-60.
[6] 刘玉林,刘天祥.富水砂层地质条件下盾构接收技术[J].施工技术,2012,41(S1):255-258.LIU Yulin,LIU Tianxiang.Acceptance technology of shields on watered sandy stratum[J].Construction Technology,2012,41(S1):255-258.
[7] 陈鸿杰,魏鑫.土压平衡盾构机过富水砂层施工技术[J].现代城市轨道交通,2010,(2):50-52.CHEN Hongjie,WEI Xing.Construction technology of earth pressure balance shield machine in water-rich sand layer[J].Modern Urban Transit,2010,(2):50-52.
[8] 张旭东.土压平衡盾构穿越富水砂层施工技术探讨[J].岩土工程学报,2009,31(9):1445-1449.ZHANG Xudong.Construction technology of earth pressure balance shield in watery sandy stratum[J].Chinese Journal of Geotechnical Engineering,2009,31(9):1445-1449.
[9] 徐岩,赵文,黄龙光,等.富水砂层土压平衡盾构关键施工技术[J].施工技术,2011,40(7):71-73,77.XU Yan,ZHAO Wen,HUANG Longguang,et al.Key construction technology of earth pressure balance shield in watery sandy stratum[J].Construction Technology,2011,40(7):71-73,77.
[10] 孟海峰,刘江涛,李世君.土压平衡盾构富水粉砂地层进、出洞常见问题分析[J].隧道建设,2011,31(S2):57-61.MENG Haifeng,LIU Jiangtao,LI Shijun.Common issues of launching and arriving for earth pressure balance shield tunneling in water-rich and silty strata[J].Tunnel Construction,2011,31(S2):57-61.
[11] 任福松,金建俊.地铁施工中的盾构机姿态控制研究[J].交通标准化,2009,(9):134-137.REN Fusong,JIN Jianjun.Shield machine attitude control in subway construction[J].Transport Standardization,2009,(9):134-137.
[12] 刘国楠,张远荣,肖文海.盾构过富水砂层对地表建筑物影响的研究[J].西北地震学报,2011,33(3):243-248.LIU Guonan,ZHANG Yuanrong,XIAO Wenhai.Influence of shield tunneling on the buildings above in saturated sandy stratum area[J].Northwestern Seismological Journal,2011,33(3):243-248.
[13] 张敏,郑志敏,邓棕.扩展土压平衡盾构在含水地层中的适应性[J].隧道建设,2003,(5):4-6,22.ZHANG Min,ZHENG Zhimin,DENG Zong.Study on adaptability of earth pressure balance shield in aquifers[J].Tunnel Construction,2003,(5):4-6,22.
[14] 朱考飞,张可能,毛亚军,等.浅埋盾构隧道水下岩溶处治与施工控制技术[J].探矿工程(岩土钻掘工程),2018,45(10):16-20.ZHU Kaofei,ZHANG Keneng,MAO Yajun,et al.Underwater karst treatment and construction control technology for shallow shield tunnel[J].Exploration Engineering(Rock & Soil Drilling and Tunneling),2018,45(10):16-20.
[15] 张林.超大直径泥水盾构穿堤施工技术[J].探矿工程(岩土钻掘工程),2014,41(6):80-84.ZHANG Lin.Dyke-crossing construction by slurry shield with super large diameter[J].Exploration Engineering (Rock & Soil Drilling and Tunneling),2014,41(6):80-84.
[16] 福州市轨道交通2号线工程5标段初步设计方案[R].浙江杭州:中国水电顾问集团华东勘测设计研究院,2013.Preliminary design for Lot 5 section of Fuzhou Rail Transit Line 2[R].Hangzhou Zhejiang:Hydrochina Huadong Engineering Corporation,2013.
[17] 李向红,傅德明.土压平衡模型盾构掘进试验研究[J].岩土工程学报,2006,28(9):1101-1105.LI Xianghong,FU Deming.Experimental study on excavation behaviour using model EPB shield with a diameter of 1.8m[J].Chinese Journal of Geotechnical Engineering,2006,28(9):1101-1105.