CAJ | 학술논문

运用大型有限元软件ANSYS建立了地铁隧道动力分析模型,分析了带桩基础的隧道结构、隧道埋深及大地参数对地铁引起大地振动响应的影响.计算结果表明:底部带桩基础的隧道结构对地面振动有明显的减振效果,桩基础越长,减振效果越好;隧道埋深对地铁引起大地振动有较大影响,地面振动强度随埋深的增加而减小;大地土层参数对地面振动的影响与激振频率有关.
운용대형유한원연건ANSYS건립료지철수도동력분석모형,분석료대장기출적수도결구、수도매심급대지삼수대지철인기대지진동향응적영향.계산결과표명:저부대장기출적수도결구대지면진동유명현적감진효과,장기출월장,감진효과월호;수도매심대지철인기대지진동유교대영향,지면진동강도수매심적증가이감소;대지토층삼수대지면진동적영향여격진빈솔유관.
Via finite element method software ANSYS,the dynamical analysis model of train-tunnel interaction is established. And effects of the tunnel structure type with pile foundations,burial depth of tunnels,and ground parameters on the ground vibration induced by subway are then analyzed. The calculation results show that the tunnel structure type with pile foundations is effective for reducing the ground vibration. The longer piles are,the better the reduction effect is. Burial depth of tunnel has great influence on ground vibration caused by subway. And the ground vibration intensity decreases as the burial depth of tunnel increases. The im-pact of ground parameters on ground vibration is related to the exciting frequency.