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2010年08 期
| 標(biāo)題 |
| 老鴨嶺隧道Ⅳ級圍巖開挖方法三維數(shù)值分析比選(50 卷) |
| 英文標(biāo)題 |
| Three-dimensional numerical analysis on selection of excavation method for Laoyaling mountain tunnel buried inⅣ-class surrounding rock |
| 摘要 |
| 采用兩種開挖方法即全斷面開挖和上下臺階開挖，利用ANSYS建立三維有限元模型進(jìn)行老鴨嶺隧道Ⅳ級圍巖開挖分析比較。比較表明，全斷面開挖將引起較小的地表以及拱頂沉降；而上下臺階開挖圍巖所承受的最大拉應(yīng)力是采用全斷面開挖圍巖所承受的最大拉應(yīng)力的2倍，綜合考慮應(yīng)優(yōu)先考 |
| 作者 |
| 新聞作者:嚴(yán) 濤,金學(xué)松，王維嘉 |
| 關(guān)鍵字 |
