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ID:35157490
大小:18.09 MB
页数:61页
时间:2019-03-20
《浅论垫邻高速公路破碎岩体高边坡生态防护技术研究》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、长安大学硕士学位论文垫邻高速公路破碎岩体高边坡生态防护技术研究姓名:张光明申请学位级别:硕士专业:岩土工程指导教师:杨晓华20100605摘要近年来随着我国高速公路向山区的延伸,工程建设中出现的高陡边坡数量急剧增加,而山区公路中的岩体高陡边坡由于含水量少和保水性较差,自身缺乏植被生长所必需的条件和生存环境,采用传统的工程防护措施在破碎岩体高边坡上进行生态环境的重建与恢复难度很大。论文依托垫江至邻水高速公路K37+907~K38+036段左线和YK37+680—YK37+850段右线破碎岩体高边坡防护工程,对边坡卸荷后边坡稳定性通过测斜管和
2、钢筋计进行了现场监测、并运用ANSYS软件对左线边坡进行了卸荷情况下岩体高边坡稳定性分析,论证了施工中对左线边坡进行锚杆框架梁加固的合理性,探讨了边坡生态防护中植物的加固机理,分析了破碎岩体高边坡植物种类选择大致遵循的原则、防护物种的选配,结合边坡野生地被植物、地域特点和相关的试验成果推荐了几种植物选配方案,并针对左、右线边坡生态护坡模式的设计进行边坡稳定性力学计算,采用了土工格室和植被板生态护坡两种新型边坡生态防护模式,阐述了两种生态护坡模式的施工工艺和质量控制标准,并进行了经济效益、生态效益和景观效益综合评价。关键词:岩体边坡,根系加
3、固机理,生态防护,土工格室,植被板AbstractInrecentyears,谢ththefastdevelopmentofthefreewayconstructiontothemountaininChina,highsteepslopeshavebeenmoreandmoreincreasedquickly.Therockmasshighslopeinmountainhighwayhasitscharactersasfollows:thepoorcontentofwater,lackingofthenecessaryconditions
4、andlivingenvironmentfortheplantstogrow.Usingtraditionalengineeringprotectionmeasuresinbrokenrockmasshigllslophasagreatmanydifficultiesinreconstructionandrecoveryofecologicalenvironment.ThepaperbasesontheleftlineK37+907"---K38+036andtherightlineYK37+680"--YK37+850protectio
5、nengineeringinDianjiangtoLinshuifreeway,hasmonitoredstabilityoftheslopefrommeasuringinclinedpipeandreinforcedinstrumentafterunloadingtheslope,analysedthestabilityoftherockmasshighslopethroughANSYSsoftware,demonstratedthatitisnecessarytouseanchorageframebeamstoreinforcethe
6、leftlineslopeintheconstruction,studiedreinforcementmechanismofplantecologicalslopeprotection,analysedtheroughlyprincipleofplantspeciesselectioninrockmassslop,optionalprotectivespecies,combining谢thslopewildgroundcoverplants,regionalcharacteristicsandtestresultsofrelevantto
7、recommendseveralplants,calculatedtheslopemechanicsstabilityagainstthepauemdesignoftheleftandrightlineslopeecologicalprotection,chosenthetwokindsofecologicalslopeecologicalprotectionmodeofGeocellandvegetationboardtypetotheslope,explainedtwoecologicalprotectionmodeofconstru
8、ctionprocessandqualitycontrolstandard,evaluatedtwokindsofslopeecologicalprotection’Seconomicbene
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