|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2010年07 期
| 標(biāo)題 |
| 地鐵列車運(yùn)行引起的環(huán)境振動(dòng)三維數(shù)值分析(50 卷) |
| 英文標(biāo)題 |
| Three-dimensional numerical analysis of environment vibration induced by metro train operating |
| 摘要 |
| 采用移動(dòng)荷載模擬地鐵列車運(yùn)行，利用ANSYS建立軌下基礎(chǔ)—隧道—大地三維有限元模型進(jìn)行分析。分析表明，大地振動(dòng)最強(qiáng)的區(qū)域在離振源最近的軌道下方處；隧道越深，地面振動(dòng)越?。浑S著列車速度的增大，地面振動(dòng)隨之增大；荷載頻率越高，地面振動(dòng)加速度衰減越快。應(yīng)重點(diǎn)考慮低頻 |
| 作者 |
| 新聞作者:嚴(yán) 濤, 肖新標(biāo), 金學(xué)松，吳 磊 |
| 關(guān)鍵字 |
