水利与建筑工程学报
水利與建築工程學報
수리여건축공정학보
TECHNIQUE OF SEEPAGE CONTROL
2012年
6期
83-86,142
,共5页
数值分析%木结构%列车运行%水平振动
數值分析%木結構%列車運行%水平振動
수치분석%목결구%열차운행%수평진동
numerical analysis%wooden structure%train running%horizontal vibration
兰州轨道交通1号线工程侧穿金天观保护区,鉴于列车运营引起的振动会对保护区中老子殿木结构产生潜在的影响,通过三维有限元数值模拟对其进行动态综合研究,以确定是否需要采取相应的措施进行保护,确保地铁运营过程中老子殿的安全。结果表明：列车轨道采用普通短枕式整体道床,列车速度为60 km/h时,满足控制标准要求,可不采取减振措施;老子殿木结构顶层水平振动较柱基础水平振动有所放大,且木结构的水平振动速度在X（沿隧道轴线）与Y（垂直于隧道轴线）两个方向的差别较大。最后提出建议控制列车最大速度不大于60 km/h,并采取中等减振措施。
蘭州軌道交通1號線工程側穿金天觀保護區,鑒于列車運營引起的振動會對保護區中老子殿木結構產生潛在的影響,通過三維有限元數值模擬對其進行動態綜閤研究,以確定是否需要採取相應的措施進行保護,確保地鐵運營過程中老子殿的安全。結果錶明：列車軌道採用普通短枕式整體道床,列車速度為60 km/h時,滿足控製標準要求,可不採取減振措施;老子殿木結構頂層水平振動較柱基礎水平振動有所放大,且木結構的水平振動速度在X（沿隧道軸線）與Y（垂直于隧道軸線）兩箇方嚮的差彆較大。最後提齣建議控製列車最大速度不大于60 km/h,併採取中等減振措施。
란주궤도교통1호선공정측천금천관보호구,감우열차운영인기적진동회대보호구중노자전목결구산생잠재적영향,통과삼유유한원수치모의대기진행동태종합연구,이학정시부수요채취상응적조시진행보호,학보지철운영과정중노자전적안전。결과표명：열차궤도채용보통단침식정체도상,열차속도위60 km/h시,만족공제표준요구,가불채취감진조시;노자전목결구정층수평진동교주기출수평진동유소방대,차목결구적수평진동속도재X（연수도축선）여Y（수직우수도축선）량개방향적차별교대。최후제출건의공제열차최대속도불대우60 km/h,병채취중등감진조시。
The underground project of Lanzhou No.1 rail traffic line passes through Jintian Temple protection area sidely.In view of the vibration effects created by train operations,a dynamic comprehensive study was conducted by 3D finite element numerical simulation method to verify the necessity for taking protection measures,so as to ensure the safety of Laozi Hall's wooden structures.The results show that the overall track bed of ordinary short pillow under the condition of train speed of 60 miles per hour could meet control standards,and there is no necessity to take vibration reduction measures.Simultaneously,contrasted to column basis,the horizontal vibration of the top level of Laozi Hall's wooden structures is magnified a little.the parallel component and vertical component of horizontal vibration velocity are also distinct.Besides,the maximum train speed of 60 miles per hour and the medium vibration reduction measures are proposed.
