沉管隧道注浆效果监测与评价的试验研究
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摘要
为了探索沉管隧道管底注浆效果的监测方法和评价体系,在国内率先采用探地雷达和数字地震仪对舟山沈家门港海底隧道模型的注浆基础进行了测试研究。通过在注浆前、注浆过程中以及注浆完成2小时后所进行的现场检测,将采集到雷达波形和面波波形与模型中预先设置的观察窗现场观察的结果进行对比,确定注浆前、注浆过程中、注浆完成后三个阶段的典型波形,以判别和评价沉管隧道管底注浆基础效果。试验结果表明,探地雷达结合面波法的监测方法能作为在管底注浆施工时的停止注浆条件之一,可满足沉管隧道现场施工时管底注浆基础效果的监测和评价,进而可为沉管隧道的工程设计方案提供依据。
In order to explore the monitoring methods and evaluation system of the immersed tube tunnel grouting effect,the grouting foundation of Shenjiamen port cross-harbour tunnel model has been tested firstly using ground penetrating radar and digital seismograph in Zhoushan,Zhejiang,China.By field testing before grouting,during grouting process and 2 hours after grouting,the collected waveforms by ground penetrating radar and surface wave have been compared with the results of field observations in pre-set viewing window.The typical waveforms of three phases(before grouting,in grouting process and after grouting)would be determined,which have been to differentiate and evaluate the foundation grouting effect of the immersed tube tunnel.The test results showed that the monitoring method combining ground penetrating radar and surface wave could be used as one of the conditions to stop grouting in the construction of the tube bottom and could meet the monitoring and evaluation of the foundation grouting effect in the immersed tube tunnel construction site.This method will also provide the basis for engineering design programs of the immersed tube tunnel.
In order to explore the monitoring methods and evaluation system of the immersed tube tunnel grouting effect,the grouting foundation of Shenjiamen port cross-harbour tunnel model has been tested firstly using ground penetrating radar and digital seismograph in Zhoushan,Zhejiang,China.By field testing before grouting,during grouting process and 2 hours after grouting,the collected waveforms by ground penetrating radar and surface wave have been compared with the results of field observations in pre-set viewing window.The typical waveforms of three phases(before grouting,in grouting process and after grouting)would be determined,which have been to differentiate and evaluate the foundation grouting effect of the immersed tube tunnel.The test results showed that the monitoring method combining ground penetrating radar and surface wave could be used as one of the conditions to stop grouting in the construction of the tube bottom and could meet the monitoring and evaluation of the foundation grouting effect in the immersed tube tunnel construction site.This method will also provide the basis for engineering design programs of the immersed tube tunnel.
引文
[1]杜朝伟,王秀英.水下隧道沉管法设计与施工关键技术[J].中国工程科学,2009,11(7):76-80.(DuChaowei,Wang Xiuying.Key technology of design andconstruction on immersed tube tunnel[J].Chinese Engi-neering Science,2009,11(7):76-80.(in Chinese))
[2]陈韶章.沉管隧道设计与施工[M].北京:科学出版社,2002.(Chen Shaozhang.Design and constructionof immersed tunnel[M].Beijing:Science Press,2002.(in Chinese))
[3]陈韶章,任孝思,陈越.珠江沉管隧道基础处理技术[J].世界隧道,1996,(6):34-39.(Chen Shaozhang,Ren Xiaosi,Chen Yue.Foundation treatment technolo-gy of Zhujiang immersed tunnel[J].World Tunnel1996,(6):34-39.(in Chinese))
[4]杨钢宇,郭铁栓,李金龙,等.超声地震模型试验在甬江隧道水底基础质量检测中的应用[J].地震学报,1996,18(4):518-522.(Yang Gangyu,Guo Tieshuan,Li Jinlong,et al.Ultrasonic seismic model test appliedin underwater foundation quality detection of Yongjiangtunnel[J].Acta Seismologica Sinica,1996,18(4):518-522.(in Chinese))
[5]李志坚.沉管法隧道基础采用灌砂回填技术的探讨[J].西部探矿工程,2002(增1):176-177.(Li Zhi-jian.Discussion of filling sand backfill technology in theimmersed tunnel foundation[J].West-China Explora-tion Engineering,2002,(Supp.1):176-177.(in Chi-nese))
[6]诸岧,徐炜家,张鹏,等.上海市外环沉管隧道基础处理技术研究[J].城市道桥与防洪,2008,(11):105-107.(Zhu Tiao,Xu Weijia,Zhang Peng,et al.Study of sinking pipe tunnel foundation treatment tech-nology of outer ring line in Shanghai[J].Urban RoadsBridges&Flood Control,2008,(11):105-107.(inChinese))
[7]潘永仁,彭俊,Naotake Saito.上海外环沉管隧道管段基础压砂法施工技术[J].现代隧道技术,2004,41(1):41-45.(Pan Yongren,Peng Jun,Naotake Saito.Technology of sand injection for the foundation of im-mersed tube elements on the external ring of Shanghai[J].Modern Tunnelling Technology,2004,41(1):41-45.(in Chinese))
[8]郑爱元,谭忠盛,李治国.沉管隧道基础灌砂模拟试验[J].中国工程科学,2009,11(7):81-84.(ZhengAiyuan,Tan Zhongsheng,Li Zhiguo.Simulation exper-iment of pumped sand on immersed tunnel[J].Engi-neering Sciences,2009,11(7):81-84.(in Chinese))
[9]李科,杜家论,黄醒春.坡度对沉管隧道压浆法基础处理浆液扩散特性的影响[J].上海交通大学学报,2011,45(5):629-633.(Li Ke,Du Jialun,HuangXingchun.Influence of slope on slurry diffusion in grou-ting treatment of immersed tunnel[J].Journal of Shang-hai Jiaotong University,2011,45(5):629-633.(inChinese))
[10]王连成,王应富,蒋树屏,等.地质雷达技术在公路隧道工程中的应用[J].公路隧道,2005,(2):32-36(Wang Liancheng.Wang Yingfu,Jiang Shuping,et al.Application of ground penetrating radar technology in ahighway tunnel[J].Road Tunnel,2005,(2):32-36.(in Chinese))
[11]李二兵,潭跃虎,段建立.地质雷达在隧道工程检测中的应用[J].地下空间与工程学报,2006,2(2):267-270.(Li Erbing,Tan Yuehu,Duan Jianli.Appli-cation of ground probing radar in tunnel engineering de-tection[J].Chinese Journal of Underground Space andEngineering,2006,2(2):267-270.(in Chinese))
[12]车爱兰,黄醒春,郭强,等.利用表面波勘探检测沉管隧道压浆法的充填效果[J].上海交通大学学报,2011,45(5):648-652,658.(Che Ailan,Huang Xing-chun,Guo Qiang,et al.Evaluation of mud-jack methodfilling effect of immersed tube tunnel using surface wavesurvey method[J].Journal of Shanghai Jiaotong Univer-sity,2011,45(5):648-652.(in Chinese))
[2]陈韶章.沉管隧道设计与施工[M].北京:科学出版社,2002.(Chen Shaozhang.Design and constructionof immersed tunnel[M].Beijing:Science Press,2002.(in Chinese))
[3]陈韶章,任孝思,陈越.珠江沉管隧道基础处理技术[J].世界隧道,1996,(6):34-39.(Chen Shaozhang,Ren Xiaosi,Chen Yue.Foundation treatment technolo-gy of Zhujiang immersed tunnel[J].World Tunnel1996,(6):34-39.(in Chinese))
[4]杨钢宇,郭铁栓,李金龙,等.超声地震模型试验在甬江隧道水底基础质量检测中的应用[J].地震学报,1996,18(4):518-522.(Yang Gangyu,Guo Tieshuan,Li Jinlong,et al.Ultrasonic seismic model test appliedin underwater foundation quality detection of Yongjiangtunnel[J].Acta Seismologica Sinica,1996,18(4):518-522.(in Chinese))
[5]李志坚.沉管法隧道基础采用灌砂回填技术的探讨[J].西部探矿工程,2002(增1):176-177.(Li Zhi-jian.Discussion of filling sand backfill technology in theimmersed tunnel foundation[J].West-China Explora-tion Engineering,2002,(Supp.1):176-177.(in Chi-nese))
[6]诸岧,徐炜家,张鹏,等.上海市外环沉管隧道基础处理技术研究[J].城市道桥与防洪,2008,(11):105-107.(Zhu Tiao,Xu Weijia,Zhang Peng,et al.Study of sinking pipe tunnel foundation treatment tech-nology of outer ring line in Shanghai[J].Urban RoadsBridges&Flood Control,2008,(11):105-107.(inChinese))
[7]潘永仁,彭俊,Naotake Saito.上海外环沉管隧道管段基础压砂法施工技术[J].现代隧道技术,2004,41(1):41-45.(Pan Yongren,Peng Jun,Naotake Saito.Technology of sand injection for the foundation of im-mersed tube elements on the external ring of Shanghai[J].Modern Tunnelling Technology,2004,41(1):41-45.(in Chinese))
[8]郑爱元,谭忠盛,李治国.沉管隧道基础灌砂模拟试验[J].中国工程科学,2009,11(7):81-84.(ZhengAiyuan,Tan Zhongsheng,Li Zhiguo.Simulation exper-iment of pumped sand on immersed tunnel[J].Engi-neering Sciences,2009,11(7):81-84.(in Chinese))
[9]李科,杜家论,黄醒春.坡度对沉管隧道压浆法基础处理浆液扩散特性的影响[J].上海交通大学学报,2011,45(5):629-633.(Li Ke,Du Jialun,HuangXingchun.Influence of slope on slurry diffusion in grou-ting treatment of immersed tunnel[J].Journal of Shang-hai Jiaotong University,2011,45(5):629-633.(inChinese))
[10]王连成,王应富,蒋树屏,等.地质雷达技术在公路隧道工程中的应用[J].公路隧道,2005,(2):32-36(Wang Liancheng.Wang Yingfu,Jiang Shuping,et al.Application of ground penetrating radar technology in ahighway tunnel[J].Road Tunnel,2005,(2):32-36.(in Chinese))
[11]李二兵,潭跃虎,段建立.地质雷达在隧道工程检测中的应用[J].地下空间与工程学报,2006,2(2):267-270.(Li Erbing,Tan Yuehu,Duan Jianli.Appli-cation of ground probing radar in tunnel engineering de-tection[J].Chinese Journal of Underground Space andEngineering,2006,2(2):267-270.(in Chinese))
[12]车爱兰,黄醒春,郭强,等.利用表面波勘探检测沉管隧道压浆法的充填效果[J].上海交通大学学报,2011,45(5):648-652,658.(Che Ailan,Huang Xing-chun,Guo Qiang,et al.Evaluation of mud-jack methodfilling effect of immersed tube tunnel using surface wavesurvey method[J].Journal of Shanghai Jiaotong Univer-sity,2011,45(5):648-652.(in Chinese))
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