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1、Theimpactoftheprojectfolds褶皱构造对工程的影响学院：土木工程与建筑学院专业：土木工程专业班级：土木1105姓名：乔宇航学号：1119014110TheimpactoftheprojectfoldsCrustalrockcomposition,itisstronglyaffectedbytectonicstress,sothattheformationofaseriesofwavycurvedrockwithoutlosingitscontinuitystructure,calledfolds.Foldstructureisproducedbypla
2、sticdeformationofrock,isoneofthebasicstructureofthesurfacecrustextensivedevelopment.Sedimentarylayersmostevidentinthemassiverockisdifficulttosee.Occurrencestudyfold,shape,type,originanddistribution,fortheidentificationofregionalgeologicalstructureandengineeringgeologicalconditionsofgreatsi
3、gnificance.Acurvedfoldsofrock(acompletewaveform),calledfolds.Foldfoldstructureiscomposedofunits,consistingofseveralpartsofthecore,wing,axialshaftandhubandeveryfoldhas,generallyreferredtofoldfactor.Thebasicformistheanticlineandsynclinefold.Foldfoldisacombinationofform,acombinationoftwoormor
4、eofthefoldstructure,calledfolds.Foldmoreintenseintheregion,asinglefoldisrelativelyrareinthegeneralcasearelinearalternatinganticlinesandsynclinestoextendsubstantiallyparalleltothesame,incombinationwithregularfoldsintodifferentforms.Whenthewingsarefoldedmanytimesthecomplexityleveloftheanticl
5、ineorsynclinelargeanticlinecomposedofalargesynclineorwhencalledsynclinoriaoranticlinorium.Foldshaveanimpactonthefollowingaspectsofengineeringandconstruction:(1)thecoreofrockfoldssqueezedoutbythelevelofaction,resultinginmanyfissures,directlyaffectsthelevelofintegrityandstrengthoftherock,inl
6、imestonekarstareasalsotendtomakemoredeveloped,sothecoreofavarietyofarchitecturallayout:projects,suchasfactories,roads,bridges,tunnels,etc.,mustpayattentiontotheproblemslumpandgushingrock.(2)arrangedintheconstructionofthewingfold,iftheslopetowardtheexcavationnearlyparalleltotherock,andthero
7、ckslopeorientationandtendencyconsistentslopeangleisgreaterthantherockslopeinclination,thephenomenonislikelytocauseslidingalongthefloor.Iftheanglebetweenthedirectionoftheslopetowardtherockat40°ormore,orbothtothesame,andtheoppositeslopeorientationandrocktendenci
