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1、AbstractWiththerapiddevelopmentandstrengthofChina'seconomicconstruction,highwayconstructiontothecomplexityofgeologicalenvironmentinlargeextend,inordertominimizetheimpactofgeologicalhazardsonthehighwayengineeringconstructionandoperation,reducethehumanengineeringactivitiesdamageofgeologicalenvironmen
2、t,strengthenthemountainousareahighwaylineselection,analysisandevaluationofEngineeringgeologicalconditionsandtheenvironmentandthecomparisonresearch,ithasimportantpracticalsignificance.Inthehighwayandsummarizedthedomesticandforeigncommongeologicaldisastersinmountainareas,formandformationconditions,al
3、ongthehighwayroadbed,tunnel,possiblebridgeengineeringgeologicalproblems,analyzethecauses,andaccordingtotheformsofthedisease,geneticmechanism,themountainousareahighwayengineeringgeologicalexplorationandthebasicprincipleandkeypointsoffollow.InHunan,SangzhitoZhangjiajieofthehighwayasanexample,discrimi
4、nantmethodcombinedwiththestabilityofengineeringgeologicalenvironment,theroutetoanalyzethestabilityofengineeringgeologicalenvironmentareas,andfollowthenewconceptofroaddesign,lineselectingprinciplesofengineeringgeologyproposedthemountainousareahighway:1）crossingsectiongeologicallineselection.Shouldfi
5、rstchoosethetimepass,elevation,theresearchonbothsidesoftheline,toavoidthelineselectionintheregionalfaultsorextrusionbeltbylocation,shouldtrytochoosethemountain,geologicalstructureisnotdevelopedinrocktendencies,terrainslopeslow,lessdamagetosection.2）alongtheCreekRoadgeologicallineselection.Shouldcho
6、oseabankgeologicaldiseasesinundevelopedandslopegently;whentheriverterracescanuse,shouldasfaraspossiblealongtheterracerouting;crosslayerdevelopmentroad,theroutechoiceasfaraspossibleinthegentleterrain,stackinglayerthicknessissmaller,andtheuppercatchmentarea.3）landslidesectiongeologicallineselection.L
7、inelandslidethroughtodoesnotdeterioratelandslidestabilityasaprinciple,especiallyselectedbyfavorableforlandslidestabilityandroutessafearea.Accordingtotherelativepositionoflineoflandslidesectionheightselectio
