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时间:2019-05-11
《深部岩体工程围岩分区破裂化现象研究综述》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、第27卷第6期岩石力学与工程学报Vol.27No.62008年6月ChineseJournalofRockMechanicsandEngineeringJune,2008深部岩体工程围岩分区破裂化现象研究综述11,2钱七虎,李树忱(1.解放军理工大学工程兵工程学院,江苏南京210007;2.山东大学土建与水利学院,山东济南250061)摘要:随着经济建设与国防建设的不断发展,深部岩体工程越来越多,如逾千米乃至数千米的矿山(如金川镍矿和南非金矿等)、锦屏二级引水隧洞及辅助洞、核废料的深层地下存储、深部地下防护工程等。深部岩体工程在开挖洞室或巷道时,围岩变形和破坏等出现了
2、一系列新的科学现象。除了岩爆和围岩挤压大变形以外,围岩的分区破裂化现象也吸引了很多岩石力学工作者的关注。基于国外对分区破裂化现象的实验和理论研究,归纳出分区破裂化现象的主要特征参数及其变化规律,揭示分区破裂化现象产生的条件;提出这一领域的研究方向;同时介绍国内在该领域实验和理论方面的研究进展。关键词:岩石力学;深部岩体;分区破裂化;非线性岩石力学;动力问题;岩爆中图分类号:TU45文献标识码:A文章编号:1000–6915(2008)06–1278–07AREVIEWOFRESEARCHONZONALDISINTEGRATIONPHENOMENONINDEEPROCK
3、MASSENGINEERING11,2QIANQihu,LIShuchen(1.EngineeringInstituteofEngineeringCorps,PLAUniversityofScienceandTechnology,Nanjing,Jiangsu210007,China;2.SchoolofCivilandHydraulicEngineering,ShandongUniversity,Jinan,Shandong250061,China)Abstract:Withthedevelopmentofnationaleconomyanddefenseworks
4、,therearemoreandmoredeepundergroundrockwassengineering,suchasthemineswithdepthofthousandtoseveralthousandsmeters(JinchuannickelminesandgoldminesinSouthAfrica,etc.),waterdiversiontunnelsandauxiliarytunnelofJinpingIIhydropowerstation,deepgeologicaldepositionofnuclearwasteanddeepundergroun
5、dprotectionengineering.Whilethedeeprockmassareexcavatedbytheblastorothermethods,thedeformationandfractureofthesurroundingrockshowseveralnewscientificcharacteristicphenomena.Besidesthedeeprockburstandlargedeformationoftunnelinsqueezingground,thephenomenonofzonaldisintegrationattractsthea
6、ttentionsofscholarsandengineersinthefieldsofgeotechnicalengineeringandrockmechanicsintheworld.Basedontheexperimentalandtheoreticalresearchesofzonaldisintegrationphenomenonathomeandabroad,themaincharacteristicsandcorrespondingchanginglawsofzonaldisintegrationaresummarized.Itisrevealedthe
7、mechanismfortheoccurrenceofzonaldisintegration;andtheemphasisinthisfieldisproposed.Alsothedomesticexperimentalandtheoreticalinvestigationsofzonaldisintegrationphenomenonareintroduced.Keywords:rockmechanics;deeprockmasses;zonaldisintegration;nonlinearrockmechanics;dynamicproblem
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