公路深挖路堑边坡工程施工监测与动态设计

248Vol.24No.820054ChineseJournalofRockMechanicsandEngineeringApril20052003101320031201(200231800026)(1972)[e-mail]1222(1.6100312.610041)(81m)TU457A10006915(2005)08133506CONSTRUCTIONMONITORANDDYNAMICDESIGNOFHIGHWAYDEEPROADCUTSLOPECHENGQiang12HUANGShao-bin2ZHOUYong-jiang2(1.DepartmentofCivilEngineeringSouthwestJiaotongUniversityChengdu610031China2.SichuanProvinceCommunicationsDepartmentHighwayPlanningSurveyDesignandResearchInstituteChengdu610041China)AbstractIntheconstructionprocessofahighwaydeeproadcutslope(81mhigh)combinedwithsurveythestabilityoftheslopeisstudiedandtheexcavationandreinforcementdesignisconductedbeforeconstructiontheconstructionmonitoranddynamicdesigniscarriedoutintheconstructionprocessandsystematicsumming-upismadeafterconstruction.Adynamicdesignmethodofhighwaydeeproadcutslopeincludingtheproceduresisproposed.Keywordsrockmechanicshighwayhighwaydeepexcavationslopeconstructionmonitordynamicdesign1()[15][1]•1336•2005[3]2(1)[68](2)()(3)(4)(5)(6)(7)3E4K73+380K73+6313.140m80m171(10m)2(6m)3(6m)4(24m)5(2m)6(20m)7(15m)2964227228082843483578087248.•1337•1Fig.1Engineeringgeologycrosssectionofslope()1351120m()14m()3.2135(1)(2)21#722m52#424m34(3)(4)2m•1338•20052Fig.2Plandisposeofdistortionsupervise3.3K7320001200210413.43.4.1(1)(2)K73+500K73+500K73+5001K73Table1ProcessofengineeringconstructionmonitorsanddynamicdesignoftheK73highslope1200114910(461.5481.1m)2200141058(425.7461.5m)915mm131.36mm6785632001102002414(400.09425.7m)334342002412248.•1339•3.4.23.4.3915mm[10]211#200172520021231#41#2#200221252#62#(1)22(2)2()200231#Fig.3Depth-displacementcurvesofmonitoringboreholeNo.1forinclinometer41#(22m)Fig.4Time-displacementcurvesofmonitoringboreholeNo.1forinclinometer4(1)9.5m5446.43m01020304050/./mm4004104204304404502001.8.1010.20/m455.7m2001.042001.062001.082001.102001.122002.022002.042002.062002.082002.102002.122003.02•1340•200552#Fig.5Depth-displacementcurveofmonitoringboreholeNo.2forinclinometer62#Fig.6Time-displacementcurveofmonitoringboreholeNo.2forinclinometer(2)(References)[1].[J].199817(4)373377.(ZhouDepei.Theinformationconstructionofhighslopeinweakrockmass[J].ChineseJournalofRockMechanicsandEngineering199817(4)373377.(inChinese))[2].[J].1995(2)111.(YangZhifaKeTianheXiaoZhushengetal.TheoryandpracticeonmonitoringdesignforexcavationofshiplockslopeatleftbankofWuqiangxihydroelectricpowerstation[J].JournalofEngineeringGeology1995(2)111.(inChinese))[3].[J].199918(8)12261229.(YangZhifaLiuDaan.LiuYingetal.Thedesignandapplicationoftheengineeringgeomechanicsmeta-synthetictheory(EGMS)[J].ChineseJournalofRockMechanicsandEngineering199918(8)12261229.(inChinese))[4].[J].199817(6)667673.(LiYandong.StabilitymonitoringoftheinnerslopeofNo.2tailwaterchannelintheErtanhydroelectricstation[J].ChineseJournalofRockMechanicsandEngineering199817(6)667673.(inChinese))[5].[J].199817(2)117122.(WangZaiquan.Predicationofdynamicstabilityanditsapplicationinaslopeproject[J].ChineseJournalofRockMechanicsandEngineering199817(2)117122.(inChinese))[6].[M].1983.(SunGuangzhong.RockmassMechanicsFoundation[M].BeijingSciencePress1983.(inChinese))[7].[J].199110(2)112116.(SunGuangzhong.Advanceinrockmassmechanicsrockmassstructuralmechanics[J].ChineseJournalofRockMechanicsandEngineering199110(2)112116.(inChinese))[8].[M].1979.(GuDezhen.RockmassEngineeringGeologicMechanicsFoundation[M].BeijingSciencePress1979.(inChinese))[9].[J].200120(1)99109.(LiGuangyuHuangYue.Linewiseobservationandportableinstrumentsonstrainmonitoringingeomechanics[J].ChineseJournalofRockMechanicsandEngineering200120(1)99109.(inChinese))[10].[M].1999.(ErtanHydropowerDevelopmentCompany248.•1341•Ltd..HandbookofGeotechnicalEngineeringSafetySupervise[M].BeijingWaterResourcesandElectricPowerPress1999.(inChinese))