资源描述：
《地铁列车运行引起的地面和建筑环境振动规律-研究》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。
1、摘要振等因素影响下科技楼各层的加速度时程和三分之一倍频程。结果表明：列车行驶速度越大对建筑的振动影响越大；当建筑采用桩基础上时会对地铁引起的环境振动有一定的消弱作用；若采用钢弹簧浮置板道床，南昌科技大楼的振动将会被控制在标准以内，不会对附近居民的生活造成干扰。关键词：地铁，环境振动，直线地段，曲线地段，有限元模型，加速度，三分之一倍频程IIAbstractSTUDIESONTHEENVIRONMENTVIBRATIONRULEOFGROUNDANDBUILDINGINDUCEDBYURBANSUBWAYTRAINTRANSITABSTRACTUptonow,t
2、hecitiesapprovedtoconstructsubwayhavereached37inChina,withthedevelopmentofthecityrail-transitconstructionindomestic;Nanchangismarchinginto"subwayera”.NanchangNo.1subwaylinestartedinJuly29,2009andtrialoperationwouldbeintheendof2015.Peopletravelbecomeconvenientwiththesubwaytraffic,als
3、o,manynegativeeffectsarebroughtinevitably,inwhichthevibrationduringtheoperationperiodisparticularlyprominent.Internationally,environmentalvibrationinducedbythesubwaytrainoperationislistedtobeoneofthesevenenvironmentalhazards,sotheresearchandpredictionabouttheenvironmentalvibrationca
4、usedbysubwayoperationisparticularlyimportant.Inthispaper,theNanchangNo.2dormitorysection,MetroLine1,wastookastheengineeringbackground,basedonANSYSsoftware,finiteelementmodelsofthetrack-tunnel-soilandtrack-tunnel-soil-buildinginlinearsectionareestablishedandtheNanchangtechnologybuild
5、ingwastookastheengineeringbackground,finiteelementmodelsoftheoftrack-tunnel-soilandtrack-tunnel-soil-buildingincurvesectionareestablished.Themainworksarefollowed:1.Theinfluencewithseveralfactorssuchasthetunneldepth,soilcharacteristics,therunningspeedandthenetspacingoftheuplinktunnel
6、andthedownlinktunnelonthegroundvibrationresponsewasresearched.Theresultsshowedthat:vibrationinducedbythetrainrunningcanbesignificantlyreducedwithincreasingtheburieddepthofthetunnelorreducingthetrainspeed;increasingtheelasticmodulusofsoillayers,thegroundvibrationincreasesfirstandthen
7、decreases;whenthedistancebetweenthefartheroneinadoubletracktunnelandthesensitivepointsismorethan25m,thenearbytunnelcanonlybeconsideredtothegroundvibrationresponse.2.Therelationshipbetweenthefactorssuchasburieddepthofthetunnelsite,soilcharacteristics,travelingspeedandthegroundvibrati
8、onamplificationwasa
