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1、第36卷第1期北京交通大学学报Vol.36No.12012年2月JOURNALOFBEIJINGJIAOTONGUNIVERSITYFeb.2012文章编号:16730291(2012)01001207岩溶发育地区隧道勘察设计经验与施工对策1,21宋瑞刚,林国涛(1.中交公路规划设计院有限公司,北京100088;2.北京交通大学隧道及地下工程教育部工程研究中心,北京100044)摘要:岩溶发育及分布的未知性与地形地貌的不规则性造成岩溶隧道围岩条件十分复杂,岩溶隧道的设计理论与施工技术一直是隧道工程界的研究热点和难点.结合
2、隧道工程的特点,阐述岩溶发育区基岩类型,总结溶沟、落水洞、岩溶洼地、盲谷等典型岩溶地貌的基本特征及对隧道工程安全性的影响,概括隧道工程中常见的岩溶区地下水系统,形成岩溶隧道勘察设计原则,指出初步设计勘察阶段、详勘阶段与施工图设计阶段的设计要点和注意事项,并依托贵州省内多座典型岩溶隧道,结合设计、咨询及施工配合中发现的问题,从勘察设计角度进行总结,以期为岩溶地区的隧道设计与施工对策提供参考.关键词:隧道工程;岩溶;勘察设计;施工对策;地表塌陷中图分类号:U45227文献标志码:ADesignexperienceandconstructionstrategieso
3、ftunnelinkarstdevelopmentarea1,21SONGRuigang,LINGuotao(1.CCCCHighwayConsultants,Co.,Ltd,Beijing100088,China;2.TunnelandUndergroundEngineeringResearchCenterofMinistryofEducation,BeijingJiaotongUniversity,Beijing100044,China)Abstract:Theunascertainedcharacteristicsofthekarstdevelopmentand
4、distribution,andtheirregularityofthetopography,causedthecomplexityofthekarsttunnelsurroundingrockcondition.Thekarsttunneldesigntheoryandconstructiontechnologyhasalwaysbeenahotanddifficultissueinthefieldoftunnelengineering.Throughconsideringthecharacteristicsofthetunnelproject,thisartic
5、leelaboratesthebasictypesofthekarstdevelopmentarea,andsummarizesthebasicfeaturesandtheinfluenceonthetunnelengineeringsecurityofthetypicalkarstlandforms,whichincludinggrike,sinkhole,karstdepression,blindvalleyetc.Thecommongroundwatersystemofthetunnelengineeringinthekarstareawasalsogen
6、eralized,andthesurveyanddesignprincipleinthekarstareaweretaken.Thedesignpointsandconsiderationsinthepreliminarydesignstage,indetailedsurveyanddesignstageandinconstructiondesignstagewerepointedout.BasedonseveraltypicalkarsttunnelinGuizhouprovince,andbyconsideringtheproblemfoundinthedesig
7、n,consultationandconstruction,thisarticlesummarizestheproblemsfromtheperspectiveofsurveyanddesign,aimingatprovidingreferenceforthetunneldesignandconstructioninthekarstarea.Keywords:tunnelengineering;karst;surveyanddesign;constructiontreatment;groundcollapses收稿日期:20110425基金项
