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| 隧道插板; 矢板; 挡土木板; 挡土桩 | |||
| 防陷护桩 | |||
| 板 〔护〕桩 | |||
| 护坡桩; 超前支架 | |||
| 超前支护; 超前梁; 超前伸梁; 隧道中的矢板; 前支护桩; 坑道顶板; 前探梁; 挡土木桩; 挡土板桩; 板桩支架 | |||
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| 开挖前先打挡土木桩 (成挡板) | |||
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