米溪梁隧道特殊地质环境下综合超前预报研究
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摘要
深埋长大隧道掘进过程中的断层、破碎带等不良地质体是导致地质灾害发生的主要诱因,地质超前预报对不良地质灾害的规避和施工安全具有重要的指导作用。针对米溪梁隧道复杂的地质条件,运用TSP、TRT探测、超前水平钻探、钻心取样、隧道内地质观测分析等方法对隧道前方围岩地质信息开展综合预测预报,为确定施工方案及合理的支护参数提供依据。经施工开挖揭示,预报效果较好,成功地保证了施工安全和质量。
The faults,fracture zones and other adverse geological body exist during the construction process of deep-buried long tunnel,often lead to geological disasters,so advanced geological prediction has important role in guiding construction safety.Under complicated geological conditions of Mixi Ridge Highway tunnel,several different methods such as TSP and TRT detection,advanced horizontal drilling,core-drill sampling and geological observation and analysis,etc.were applied to forecast the geologic information of surrounding rock in tunnel facing frontage,this provided basis for the determination of construction program and reasonable supporting parameters.Good effect was achieved by comparing the results of prediction and in-situ measurement,the safety and quality of construction were ensured.
The faults,fracture zones and other adverse geological body exist during the construction process of deep-buried long tunnel,often lead to geological disasters,so advanced geological prediction has important role in guiding construction safety.Under complicated geological conditions of Mixi Ridge Highway tunnel,several different methods such as TSP and TRT detection,advanced horizontal drilling,core-drill sampling and geological observation and analysis,etc.were applied to forecast the geologic information of surrounding rock in tunnel facing frontage,this provided basis for the determination of construction program and reasonable supporting parameters.Good effect was achieved by comparing the results of prediction and in-situ measurement,the safety and quality of construction were ensured.
引文
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[11]朱彦鹏,何江飞,李军.黄土公路隧道浅埋段管棚注浆支护机理及监测分析[J].建筑科学与工程学报,2001,28(1):11-15.ZHU Yan-peng,HE Jiang-fei,LI Jun.Support mechanism and monitoring analysis of pipe roof grouting for loess highway tun-nel in shallow-buried section[J].Journal of Architecture and Civil Engineering,2001,28(1):11-15.
[12]王明华,王国斌,利奕年.TRT在岩溶隧道地质超前预报中的应用研究[J].水资源与水工程学报,2010,21(5):40-42.WANG Ming-hua,WANG Guo-bin,LI Yi-nian.Study on the application of TRT to geological prediction in carst tunnel[J].Journal of Water Resources&Water Engineering,2010,21(5):40-42.
[13]陈刚毅.TRT地质超前预报技术及其在三峡翻坝高速公路中的应用[J].资源环境与工程,2009,23(3):304-307.CHEN Gang-yi.Tunnel reflection tomography and its application in Fanba highway of Hubei province[J].Resources Environ-ment&Engineering,2009,23(3):304-307.
[14]席继红,闫小兵,周永胜.快速钻探技术在岩溶隧道超前预报中的应用[J].工程地球物理学报,2008,5(1):89-94.XI Ji-hong,YAN Xiao-bing,ZHOU Yong-sheng.Application of rapid drilling technology in forecast of karst tunnel[J].Chi-nese Journal of Engineering Geophysics,2008,5(1):89-94.
[2]钟世航,孙宏志,王荣,等.隧道掌子面前方地质预报的现状及发展之路[J].工程地球物理学报,2007,4(3):180-185.ZHONG Shi-hang,SUN Hong-zhi,WANG Rong,et al.The present situation of the geological prediction in front of tunnel face and its development[J].Chinese Journal of Engineering Geophysics,2007,4(3):180-185.
[3]张志龙,王兰生,王跃飞,等.雪峰山高速公路隧道F 2断层带的综合超前地质预报[J].岩石力学与工程学报,2007,26(增1):3311-3315.ZHANG Zhi-long,WANG Lan-sheng,WANG Yue-fei,et al.Comprehensive advanced geological prediction of fault F 2 in Xue-feng mountain highway tunnel[J].Chinese Journal of Rock Mechanics and Engineering,2007,26(Suppl.1):3311-3315.
[4]雷明锋,彭立敏,施成华.复杂地质条件下隧道浅埋段全空间综合超前地质预报技术[J].岩石力学与工程学报,2009,28(增2):3571-3575.LEI Ming-feng,PENG Li-min,SHI Cheng-hua.Whole space comprehensive advanced geological prediction technique for shal-low-buried section of tunnel under complicated geological condition[J].Chinese Journal of Rock Mechanics and Engineering,2009,28(Suppl.2):3571-3575.
[5]葛颜慧,李术才,张庆松,等.基于风险评价的岩溶隧道综合超前地质预报技术研究[J].岩土工程学报,2010,32(7):1124-1130.GE Yan-hui,LI Shu-cai,ZHANG Qing-song,et al.Comprehensive geological prediction based on risk evaluation during tun-neling in karst area[J].Chinese Journal of Geotechnical Engineering,2010,32(7):1124-1130.
[6]罗利锐,刘志刚,姚海波,等.超前地质预报在棋盘石岩溶隧道中的应用[J].铁道工程学报,2009,(11):10-12.LUO Li-rui,LIU Zhi-gang,YAO Hai-bo,et al.Application of geological forecast in construction of Qipanshi karst tunnel[J].Journal of Railway Engineering Society,2009,(11):10-12.
[7]李永鸿,徐光黎,杨银湖,等.地震反射波法技术及其在隧道超前地质预报中的应用研究[J].岩土工程学报,2005,27(10):1180-1184.LI Yong-hong,XU Guang-li,YANG Yin-hu,et al.Application of earthquake refracted wave method to geologyical prediction for tunneling[J].Chinese Journal of Geotechnical Engineering,2005,27(10):1180-1184.
[8]吴俊,毛海和,应松,等.地质雷达在公路隧道短期地质超前预报中的应用[J].岩土力学,2003,24(增1):154-157.WU Jun,MAO Hai-he,YING Song,et al.Application of ground probing radar to short-term geological forecast for tunnel con-struction[J].Rock and Soil Mechanics,2003,24(Suppl.1):154-157.
[9]刘志刚,刘秀峰.断层参数预测法预报隧道断层[J].岩石力学与工程学报,2003,22(9):1547-1550.LIU Zhi-gang,LIU Xiu-feng.Determination of tunnel fault by the method of fault parameter forecast[J].Chinese Journal of Rock Mechanics and Engineering,2003,22(9):1547-1550.
[10]方建勤,柳群义,朱自强.TSP203型隧道超前地质预报系统及应用[J].工程地球物理学报,2007,4(3):218-224.FANG Jian-qin,LIU Qun-yi,ZHU Zi-qiang.The system of TSP2203plus in advanced prediction of geological tunnel and its application[J].Chinese Journal of Engineering Geophysics,2007,4(3):218-224.
[11]朱彦鹏,何江飞,李军.黄土公路隧道浅埋段管棚注浆支护机理及监测分析[J].建筑科学与工程学报,2001,28(1):11-15.ZHU Yan-peng,HE Jiang-fei,LI Jun.Support mechanism and monitoring analysis of pipe roof grouting for loess highway tun-nel in shallow-buried section[J].Journal of Architecture and Civil Engineering,2001,28(1):11-15.
[12]王明华,王国斌,利奕年.TRT在岩溶隧道地质超前预报中的应用研究[J].水资源与水工程学报,2010,21(5):40-42.WANG Ming-hua,WANG Guo-bin,LI Yi-nian.Study on the application of TRT to geological prediction in carst tunnel[J].Journal of Water Resources&Water Engineering,2010,21(5):40-42.
[13]陈刚毅.TRT地质超前预报技术及其在三峡翻坝高速公路中的应用[J].资源环境与工程,2009,23(3):304-307.CHEN Gang-yi.Tunnel reflection tomography and its application in Fanba highway of Hubei province[J].Resources Environ-ment&Engineering,2009,23(3):304-307.
[14]席继红,闫小兵,周永胜.快速钻探技术在岩溶隧道超前预报中的应用[J].工程地球物理学报,2008,5(1):89-94.XI Ji-hong,YAN Xiao-bing,ZHOU Yong-sheng.Application of rapid drilling technology in forecast of karst tunnel[J].Chi-nese Journal of Engineering Geophysics,2008,5(1):89-94.
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