sns主动防护条件下边坡绿化及稳定性探讨

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1、第25卷第2期岩石力学与工程学报Vol.25No.22006年2月ChineseJournalofRockMechanicsandEngineeringFeb.，2006SNS主动防护条件下边坡绿化及稳定性探讨罗阳明1，雷承弟2，周德培1，杨涛1(1.西南交通大学岩土工程系，四川成都610031；2.中国水电顾问集团成都勘测设计研究院，四川成都610072)摘要：主动SNS为一种开放式的防护方法，其安装方便快捷，施工简单，防护效果好，已经在国内多处水电、交通、矿山等领域得到广泛应用。主动SNS也给植被防护提供

2、了很大的空间，但由于条件所限，国内将主动SNS与植被恢复相结合的实例并不多，相关方面的研究也较少。简要地介绍了现阶段边坡绿化的主要方法，讨论主动SNS与植被恢复相结合的方法。此外，还讨论主动SNS与植被共同作用下边坡的稳定性，并提出一种简化的计算模型用以验算边坡安全系数。最后，用一个工程实例对所提出的模型进行验算。关键词：边坡工程；柔性防护系统；边坡稳定性；绿化；植被护坡中图分类号：P642.22文献标识码：A文章编号：1000–6915(2006)02–0235–06DISCUSSIONONVEGETATION

3、METHODSANDSTABILITYOFSLOPESREINFORCEDBYSNSACTIVEPROTECTIONSYSTEMLUOYang-ming1，LEICheng-di2，ZHOUDe-pei1，YANGTao1(1.DepartmentofGeotechnicalEngineering，SouthwestJiaotongUniversity，Chengdu，Sichuan610031，China；2.ChengduHydroelectricInvestigationandDesignInstitute

4、，ChinaHydropowerConsultingGroup，Chengdu，Sichuan610072，China)Abstract：SNS(safetynettingsystem)activeprotectionisanopensystemtoreinforceslopes.Consideringitsmerits—easytoinstall，highefficiency，lowcostandartisticeffectonslopes，ithasbeenwidelyusedinmanyfieldsofdo

5、mesticindustries，suchashydropowerstation，civiltransportationandminingengineering.ThoughthefeasibilityofcombiningherbageprotectionwiththeSNSactivesystemdoesexist，fewpracticalengineeringusingthismethodwereputintoeffect.Thestudyonthisissueisalsoscarce.Inthispape

6、r，theauthorssummarizetheconventionalwaystoafforestslopes，discussthefeasibilityofcombiningSNSactivesystemwithslopevegetation，andsuggestthatthreevegetationwayscanbeusedtotheslopesreinforcedbytheSNSactivesystem.Theauthorsalsoadviseproperamendmentofthesevegetatio

7、nways.Anewmethodofevaluatingthestabilityoftheslopeprotectedbytheflexibleactiveprotectionsystemisputforward.Thereinforcingeffectofslopeprotectionwithherbageatshallowlayerisdemonstrated；asimplifiedgeometricalmodeltosimulatethesituationoftheslopeisproposed，fromw

8、hichformulasusedtocalculatesafetyfactorcanbededuced；andapracticalengineeringslopeisusedtotestifytheformulas.Theresultsshowthattheformulasareapplicable.Thefollowingconclusionscanbedrawnasf