邻近水库（水牛家）隧道开挖围岩变形特性分析

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1、西南科技大学工程硕士专业学位论文第III页tunnelentrancetotheexit,butthetrendisgraduallyweakened.(3)Thedirectcauseofthetunneldeformationasymmetryis:asthereservoirwaterlevelrising,waterconstantlyseepingintotherock,softeningthecarbonaceousphylliteandweakeningitsintensity.Soitsresistanceabilityagainsthighgroundst

2、ressandthelateralpressurecausedbyrockexpansionafterexcavationisweak.(4)Constructionshouldpayattentiontostrengtheningthesupportbecauseofthestressconcentrationonbothsidesofthesurroundingrockafterthetopbar’sexcavation.Theproposalisnoanchorafterthesectionexcavation.Thewholeinitialsupportmeetst

3、hestrengthrequirementsandthedesignisreasonable.Theresearchachievementofthisdissertationhassomereferencevalue,foritprovidesthebasisforthelongtermdeformationmonitoringafterthecompletionofthetunnelandcanguidethedesignandtheconstructionoftunnelsnexttoreservoirsinthefuture.Keywords:Highwaytunne

4、l;Reservoir;Thedeformationofsurroundingrock;Monitor;Numericalsimulation西南科技大学工程硕士专业学位论文第IV页目录摘要.....................................................................IAbstract....................................................................II1绪论............................................

5、..........................11.1选题依据.............................................................11.2国内外研究现状.......................................................21.2.1隧道监测技术及发展现状.........................................21.2.2隧道围岩变形数据处理研究现状...................................41.3隧道监测工作存在的不足.

6、..............................................81.4本文研究内容和技术路线...............................................92公路隧道监测技术研究......................................................102.1监测的目的和意义....................................................102.2监测内容和方法.......................................

7、...............102.2.1隧道监测项目分类..............................................102.2.2测点布置及监测方法............................................122.3数据控制标准........................................................162.4数据的分析及处理............................................