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2005年03 期
| 標題 |
| 軟弱圍巖隧道洞口段超前支護的三維數(shù)值分析(45 卷) |
| 英文標題 |
| * |
| 摘要 |
| 結(jié)合軟弱圍巖單線鐵路隧道洞門工程地質(zhì)和支護設(shè)計特點，應(yīng)用數(shù)值方法模擬研究了軟巖單線鐵路隧道洞門4種超前支護結(jié)構(gòu)的受力機理。研究結(jié)果表明，4種超前支護的受力特性是不一致的，超前錨桿和超前小導(dǎo)管的受力特征與桿單元相似，且受力特性都是中間大、兩端??；大管棚受力特 |
| 作者 |
| 新聞作者:李 強 歐陽院平 王明年 |
| 關(guān)鍵字 |
