According to the comparison of many alternatives, the repair scheme of the releasing tunnel adopted the alternative of installing temporary sealing gate to form dry land construction conditions so that the repair scheme has been completed smoothly.
英
美
- 泄空洞修復工程，經(jīng)多種方案比較，最終優(yōu)選水下安裝臨時(shí)封水閘門(mén)，形成旱地施工條件，完成了檢修工程。
