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2009年09 期
| 標(biāo)題 |
| 關(guān)于小凈距隧道間合理凈距的探討(49 卷) |
| 英文標(biāo)題 |
| Discussion on rational distance apart between tunnels |
| 摘要 |
| 利用數(shù)值分析手段，對不同凈距未支護(hù)條件下小凈距隧道的圍巖塑性區(qū)、變形及受力狀況進(jìn)行了深入的分析研究?？芍寒?dāng)兩隧道的凈距小于B(B為毛洞開挖寬度)時，在兩隧道中巖墻較大范圍內(nèi)將產(chǎn)生塑性區(qū)，且位移量明顯大于單洞狀態(tài)。中巖墻部位產(chǎn)生了明顯的應(yīng)力疊加現(xiàn)象，處于很不 |
| 作者 |
| 新聞作者:朱進(jìn)，蔡益郎，杜飛天 |
| 關(guān)鍵字 |
