越海盾构工程孤石探测技术探索
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摘要
为解决盾构隧道施工过程中孤石带来的风险,以台山核电站取水隧洞工程为例,介绍了孤石对盾构施工的危害及处理措施,从物探方法、探测设备、探测范围等多个方面介绍了探测技术,证明采用地震反射波CDP叠加技术进行孤石探测是可行的,并通过钻孔验证了物探成果的准确性。尤其对于1 m以上的孤石探测较为准确。
The successful boulder prospecting by means of marine seismic reflection CDP stacking technology adopted in the construction of the water-intake tunnel of Taishan Nuclear Power Station is analyzed,so as to reduce the construction risk of shield-bored tunnel in boulder-containing strata.The practice demonstrates that the geophysical prospecting technology adopted is feasible for prospecting boulders under water,especially for the detection of boulders with diameter being larger than 1 m.
The successful boulder prospecting by means of marine seismic reflection CDP stacking technology adopted in the construction of the water-intake tunnel of Taishan Nuclear Power Station is analyzed,so as to reduce the construction risk of shield-bored tunnel in boulder-containing strata.The practice demonstrates that the geophysical prospecting technology adopted is feasible for prospecting boulders under water,especially for the detection of boulders with diameter being larger than 1 m.
引文
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[2]鲍晓东.深圳地区花岗岩残积土工程特性的研究[J].铁道勘察,2004(2):73-75.(BAO Xiaodong.Engineeringgeological properties of the remainder soil from weatheringgranite in Shenzhen district[J].Railway Investigation andSurveying,2004(2):73-75.(in Chinese))
[3]贺朝荣.深圳地铁2号线盾构机通过孤石的处理技术[J].城市道桥与防洪,2010(12):132-134.(HEChaorong.Treatment technology of shield machine to passthrough isolated stone in Shenzhen Metro No.2 line[J].Ur-ban Roads Bridges&Flood Control,2010(12):132-134.(in Chinese))
[4]竺维彬,黄威然,孟庆彪,等.盾构工程孤石及基岩侵入体爆破技术研究[J].现代隧道技术,2011(5):18-23.(ZHU Weibin,HUANG Weiran,MENG Qingbiao,et al.Re-search on controlled blasting technology for boulders and in-vading bedrock in shield construction[J].Modern TunnellingTechnology,2011(5):18-23.(in Chinese))
[5]李熙福.冲击钻机钻孔遇孤石的处理方法[J].广东土木与建筑,2011(2):49-51.(LI Xifu.The processing meth-od of percussion drill hiting boulders[J].Guangdong Archi-tecture Civil Engineering,2011(2):49-51.(in Chinese))
[6]李玉春.盾构法隧道球状风化孤石处理关键技术[J].中国科技信息,2009(23):77-78.(LI Yuchun.Constructiontechnology of treating spherical weathered boulders on shieldtunneling[J].China Science and Technology Information,2009(23):77-78.(in Chinese))
[7]古力.盾构机破碎孤石条件及预处理方法[J].隧道建设,2006(S2):12-13,32.(GU Li.Qualifications for boul-der breaking by shield machines and pre-treatment of boul-ders[J].Tunnel Construction,2006(S2):12-13,32.(inChinese))
[8]祁世亮.隧道孤石处理技术应用研究[J].隧道建设,2010,30(1):110-113.(QI Shiliang.Application of hy-draulic splitter in boulder treatment during tunneling[J].Tunnel Construction,2010,30(1):110-113.(in Chi-nese))
[9]杨雄飞,袁鸿.广州地铁3号线孤石地层的探测及处理[J].建筑机械化,2011(6):73-76.(YANG Xiongfei,YUAN Hong.The detecting and measure of the boulder layerat the site of Guangzhou Metro line 3[J].ConstructionMechanization,2011(6):73-76.(in Chinese))
[10]李树林.城市地铁岩土工程勘察应注意的问题[J].铁道勘察,2005(5):38-41.(LI Shulin.Some issues on thegeotechnical engineering survey of the urban subway[J].Railway Investigation and Surveying,2005(5):38-41.(inChinese))
[11]李乾.地铁盾构法隧道孤石工程分类及处理对策[J].都市快轨交通,2012(1):82-85.(LI Qian.Study on engi-neering classification of boulders and treatment measures inmetro shield tunneling[J].Urban Rapid Rail Transit,2012(1):82-85.(in Chinese))
[12]郭新平,吴国兴,许松燕,等.探地雷达在工程勘察中的应用实例[J].华南地震,2009(S1):123-126.(GUO Xin-ping,WU Guoxing,XU Songyan,et al.Application of groundpenetrating radar to geotechnical surveying[J].South ChinaJournal of Seismology,2009(S1):123-126.(in Chinese))
[13]刘宏岳.地震反射波CDP叠加技术在海域花岗岩孤石探测中的应用[J].工程地球物理学报,2010(6):714-718.(LIU Hongyue.Marine seismic reflection for the detec-tion of the weathering residues in the granite[J].ChineseJournal of Engineering Geophysics,2010(6):714-718.(inChinese))
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