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|---|---|---|---|---|---|
| 1 | flood prevention | 水防 | |||
| 2 | flood prevention | 洪水防御 | |||
| 3 | ground water protection | 地下水防護 | |||
| 4 | leak prevention | 漏水防止 | |||
| 5 | measure to prevent water from leaking into the tunnel construction area | トンネル工部の湧水防止対策 | |||
|
|
|
|
|
|
|---|---|---|---|---|---|
| 1 | flood prevention | 水防 | |||
| 2 | flood prevention | 洪水防御 | |||
| 3 | ground water protection | 地下水防護 | |||
| 4 | leak prevention | 漏水防止 | |||
| 5 | measure to prevent water from leaking into the tunnel construction area | トンネル工部の湧水防止対策 | |||