穿越湘江水下岩溶发育区地铁盾构选型研究与应用
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摘要
长沙地铁3号线越江隧道穿越湘江岩溶发育区,盾构施工风险高。针对沿线砾岩夹泥质砂岩复合地层、断裂破碎带和复杂岩溶地层等特殊地质条件,考虑水下高水压等因素影响,对地铁盾构选型进行研究。考虑不同施工风险,对盾构各关键部分进行设计与改进;对岩溶地层进行注浆预加固处理,分析泥水盾构对穿越复杂岩溶地层的适应性。采用改进的泥水盾构成功穿越湘江水下岩溶发育区,掘进效果良好,表明泥水盾构选型对穿越湘江水下岩溶发育区隧道的施工环境是合理且适应的。
The cross-river tunnel of the Changsha Metro Line 3 passes through the karst development area under the Xiangjiang River and the risk of shield construction is high. We performed research regarding the metro shield selection in terms of the special geological conditions along the line such as conglomerate and argillaceous siltstone mixed strata, fault fracture zone and complex karst strata. In addition, we also considered the influence of high-water pressure and other factors.Designs and improvements were implemented for the key parts of the shield considering the different construction risks; the karst strata were pre-reinforced by grouting and the adaptability of the slurry shield to cross complex karst strata was analyzed.The slurry shield successfully crossed karst development area under the Xiangjiang River and the effect was good while digging. This indicates that the selected slurry shield is reasonable and adaptable to the construction environment of the tunnel crossing karst development area under the Xiangjiang River.
The cross-river tunnel of the Changsha Metro Line 3 passes through the karst development area under the Xiangjiang River and the risk of shield construction is high. We performed research regarding the metro shield selection in terms of the special geological conditions along the line such as conglomerate and argillaceous siltstone mixed strata, fault fracture zone and complex karst strata. In addition, we also considered the influence of high-water pressure and other factors.Designs and improvements were implemented for the key parts of the shield considering the different construction risks; the karst strata were pre-reinforced by grouting and the adaptability of the slurry shield to cross complex karst strata was analyzed.The slurry shield successfully crossed karst development area under the Xiangjiang River and the effect was good while digging. This indicates that the selected slurry shield is reasonable and adaptable to the construction environment of the tunnel crossing karst development area under the Xiangjiang River.
引文
[1]黄学军,杨艳玲.南昌地铁泥水盾构穿越赣江风险分析及其控制措施[J].公路交通技术,2016,32(2):112-116.HUANG Xuejun,YANG Yanling.Analysis for risks of slurry shield in Nanchang metro crossing ganjiang river and control measures[J].Technology of highway and transport,2016,32(2):112-116.
[2]杜闯东.基岩破碎带与软硬不均等不良地层盾构掘进技术分析[J].隧道建设,2015,35(9):920-927.DU Chuangdong.Analysis of shield tunneling in fractured bed rock zones and upper-soft lower-hard ground[J].Tunnel construction,2015,35(9):920-927.
[3]黎新亮.盾构隧道穿越湘江溶洞区工程风险分析及应对措施探讨[J].铁道标准设计,2014,58(2):64-70.LI Xinliang.Analysis and countermeasures on engineering risk of shield tunnel passing through karst cave zone of Xiangjiang River[J].Railway standard design,2014,58(2):64-70.
[4]谭忠盛,洪开荣,万姜林,等.软硬不均地层复合盾构的研究及掘进技术[J].岩石力学与工程学报,2006,25(S2):3945-3952.TAN Zhongsheng,HONG Kairong,WAN Jianglin,et al.Study on composite shield and construction technique in complex uneven strata[J].Chinese journal of rock mechanics and engineering,2006,25(S2):3945-3952.
[5]周迎,丁烈云,周诚,等.越江隧道工程泥水盾构适应性分析研究[J].铁道工程学报,2010,27(11):68-74.ZHOU Ying,DING Lieyun,ZHOU Cheng,et al.Analysis of adaptability of slurry shield for construction of rivercrossing tunnel[J].Journal of Railway Engineering Society,2010,27(11):68-74.
[6]李俊伟,李丽琴,吕培印.复合地层条件下盾构选型的风险分析[J].地下空间与工程学报,2007,3(S1):1241-1244.LI Junwei,LI Liqin,LYU Peiyin.Risk analysis on shield type selection at compound stratum[J].China journal of underground space and engineering,2007,3(S1):1241-1260.
[7]梁波.昆明地铁盾构选型设计分析与探讨[J].铁道工程学报,2011,28(5):92-97.LIANG Bo.Analysis and discussion on the design of Kunming metro shield[J].Journal of railway engineering society,2011,28(5):92-97.
[8]王明胜,倪冰玉.成都地铁一号线盾构选型[J].矿产勘查,2009,12(3):53-56.WANG Mingsheng,NI Bingyu.Shield type selection of No.1 line of Chengdu Metro[J].Geotechnical engineering world,2009,12(3):48-53.
[9]王百泉,任勇,金仲祥,等.复杂条件下的大直径泥水盾构掘进参数控制[J].中国工程科学,2010,12(12):65-69.WANG Baiquan,REN Yong,JIN Zhongxiang,et al.Research on large slurry shield excavation parameter control under complex conditions[J].Engineering sciences,2010,12(12):65-69.
[10]彭正勇,梁奎生.泥水复合盾构过软硬不均地层关键技术研究及应用[J].建筑机械化,2012(S2):45-50.PENG Zhengyong,LIANG Kuisheng.Key technical research and application of slurry shield machine excavating in uneven soft and hard geology[J].Construction mechanization,2012(S2):45-50.
[2]杜闯东.基岩破碎带与软硬不均等不良地层盾构掘进技术分析[J].隧道建设,2015,35(9):920-927.DU Chuangdong.Analysis of shield tunneling in fractured bed rock zones and upper-soft lower-hard ground[J].Tunnel construction,2015,35(9):920-927.
[3]黎新亮.盾构隧道穿越湘江溶洞区工程风险分析及应对措施探讨[J].铁道标准设计,2014,58(2):64-70.LI Xinliang.Analysis and countermeasures on engineering risk of shield tunnel passing through karst cave zone of Xiangjiang River[J].Railway standard design,2014,58(2):64-70.
[4]谭忠盛,洪开荣,万姜林,等.软硬不均地层复合盾构的研究及掘进技术[J].岩石力学与工程学报,2006,25(S2):3945-3952.TAN Zhongsheng,HONG Kairong,WAN Jianglin,et al.Study on composite shield and construction technique in complex uneven strata[J].Chinese journal of rock mechanics and engineering,2006,25(S2):3945-3952.
[5]周迎,丁烈云,周诚,等.越江隧道工程泥水盾构适应性分析研究[J].铁道工程学报,2010,27(11):68-74.ZHOU Ying,DING Lieyun,ZHOU Cheng,et al.Analysis of adaptability of slurry shield for construction of rivercrossing tunnel[J].Journal of Railway Engineering Society,2010,27(11):68-74.
[6]李俊伟,李丽琴,吕培印.复合地层条件下盾构选型的风险分析[J].地下空间与工程学报,2007,3(S1):1241-1244.LI Junwei,LI Liqin,LYU Peiyin.Risk analysis on shield type selection at compound stratum[J].China journal of underground space and engineering,2007,3(S1):1241-1260.
[7]梁波.昆明地铁盾构选型设计分析与探讨[J].铁道工程学报,2011,28(5):92-97.LIANG Bo.Analysis and discussion on the design of Kunming metro shield[J].Journal of railway engineering society,2011,28(5):92-97.
[8]王明胜,倪冰玉.成都地铁一号线盾构选型[J].矿产勘查,2009,12(3):53-56.WANG Mingsheng,NI Bingyu.Shield type selection of No.1 line of Chengdu Metro[J].Geotechnical engineering world,2009,12(3):48-53.
[9]王百泉,任勇,金仲祥,等.复杂条件下的大直径泥水盾构掘进参数控制[J].中国工程科学,2010,12(12):65-69.WANG Baiquan,REN Yong,JIN Zhongxiang,et al.Research on large slurry shield excavation parameter control under complex conditions[J].Engineering sciences,2010,12(12):65-69.
[10]彭正勇,梁奎生.泥水复合盾构过软硬不均地层关键技术研究及应用[J].建筑机械化,2012(S2):45-50.PENG Zhengyong,LIANG Kuisheng.Key technical research and application of slurry shield machine excavating in uneven soft and hard geology[J].Construction mechanization,2012(S2):45-50.
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