Page 110 - 2023年第54卷第7期
P. 110
2012,31(3):148 - 159.
[15] 陈祖煜,徐佳成,陈立宏,等.重力坝抗滑稳定可靠度分析:(二)强度指标和分项系数的合理取值研究
[ J].水力发电学报,2012,31(3):160 - 167.
[16] 陈建叶,张林,陈媛,等.武都碾压混凝土重力坝深层抗滑稳定破坏试验研究[J].岩石力学与工程学报,
2007(10):2097 - 2103.
#
[17] 杨庚鑫,杨宝全,张林,等.丹巴水电站右 1坝段坝基稳定二维地质力学模型验证性破坏试验[J].水利
学报,2018,49(12):1550 - 1558.
[18] LIUYR,GUANFH,YANGQ,etal.Geomechanicalmodeltestforstabilityanalysisofhigharchdambasedon
smallblocksmasonrytechnique [J].InternationalJournalofRockMechanicsandMiningSciences,2013,61:231 - 243.
[19] CHENY,ZHANGL,YANGB,etal.GeomechanicalmodeltestondamstabilityandapplicationtoJinpingHigh
archdam [J].InternationalJournalofRockMechanicsandMiningSciences,2015,76:1 - 9.
[20] LINP,ZHOUW,LIUH.Experimentalstudyoncracking,reinforcement,andoverallstabilityoftheXiaowan
super - higharchdam[J].RockMechanicsandRockEngineering,2015,48(2):819 - 841.
[21] 张国新,钮新强,雒翔宇,等.重力坝加高的应力和稳定计算方法及控制标准研究[J].水利学报,2022,
53(4):392 - 402.
[22] YUANW H,WANGH C,ZHANGW,etal.Particlefiniteelementmethodimplementationforlargedeformation
analysisusingAbaqus [J].ActaGeotechnica,2021,16(8):2449 - 2462.
[23] 梁辉,赵文光,郭胜山,等.高拱坝- 地基体系整体稳定概率地震风险分析[J].水利学报,2021,52(3):
310 - 322.
[24] TAYLAND,AYDINT.AnalysisofdynamicbehaviorofDarideresi - IIDam byANSYS[J].NaturalHazards,
2018,90(3):1223 - 1235.
[25] 涂劲,李德玉,郭胜山,等.动态循环荷载下大坝混凝土拉压转换损伤本构模型构建及影响研究[J].水
利学报,2021,52(8):927 - 935.
Studyontheinfluenceofdouble - slopeslidingsurfacefoundationonthe
failuremodeofcementedsandandgraveldam
1
1,2
DINGZelin,XUEJianghan ,WANGJing 1
(1.SchoolofWaterConservancy,NorthChinaUniversityofWaterResourcesandElectricPower,Zhengzhou 450046,China;
2.CollegeofWaterResourcesandHydropower,SichuanUniversity,Chengdu 610065,China)
Abstract:Inordertoexploretheinfluenceofcomplexfoundationonthesafetyandstabilityofcementedsandand
graveldam (CSGdam),three - dimensionalgeomechanicalmodeltestswerecarriedoutforCSGdamonhomogene
ousfoundation ,fractureddouble - slopeslidingsurfacefoundationandfullydevelopeddouble - slopeslidingsurface
foundation.Byanalyzingthedeformationcharacteristicsofthedam bodyanddam foundation ,thefailureprocess
andfailuremodeofthemodelintheexperiment ,thecontrollingfactorsaffectingthesafetyandstabilityofdam
bodyareexplored.Theresultsshowthat :(1)theoverloadsafetyfactorK p ofhomogeneousfoundationmodel,
fractureddouble - slopeslidingsurfacefoundationmodelandfullydevelopeddouble - slopeslidingsurfacefoundation
modelare6.0 ,6.4and6.8,respectively.(2)Thefailuremodeofthemodelhasagreatrelationshipwiththein
tegrityofthefoundation.Thefailuremodeofthedambodyiscausedbythethroughcrackalongthedamfoundation
surface ,andgraduallydevelopsintotheslidingchannelslidinginthefoundation,formingtheslidingflipfailureof
thedamheelfallingandthedamtoelifting.(3)ThestabilityofCSGdamisdeterminedbytheanti - slidingstabili
tyofstructuralplaneincomplexfoundation.AftertheCSG dam isaffectedbythedouble - slopeslidingsurface
foundation ,theoverloadsafetyfactorofeachmodelgraduallydecreaseswiththedevelopmentofthefoundation,
whichseriouslyaffectsthesafetyoftheproject.Itisnecessarytoavoidthedangerousfaultsthatmayformthepo
tentialslidingsurfacewhenselectingthedamsite.Thetestresultscanprovidereferenceforthesubsequentdevel
opment ,designandconstructionofCSGdam.
Keywords:cementedsandandgraveldam;double - slopeslidingsurfacefoundation;geomechanicalmodeltest;
slipfailure
(责任编辑:韩 昆)
— 8 6 —
8