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2010年04 期
| 标题 |
| 超前加固支护技术在改建铁路隧道洞门施工中的应用(50 卷) |
| 英文标题 |
| Application of forepoling reinforcing technology in existing railway tunnel reconstruction |
| 摘要 |
| 达成线渠江四号隧道改建工程中，围岩类别包括Ⅳ级、Ⅴ级二类。其中，隧道出入口处为Ⅴ级围岩地段，稳定性差，为保证施工质量、安全和工期要求，采用提前进洞以超前加固技术对不良地质进行预加固处理和格栅钢架结合超前小导管进行洞门支护加固进洞的方法。 |
| 作者 |
| 新闻作者:黄华，张永厚 |
| 关键字 |
