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1 工程概况长江三峡水利枢纽左岸厂坝一期开挖工程包括左岸12～18#非溢流坝段,左岸1～6#厂房坝段和1～6#机组段、尾水渠以及厂前区等工程项目。施工区范围约为430m×430m,土石方开挖由140m的山顶到22.2m的厂房基础,总开挖量为787万余m3。该工程分为2期招标。均由三七八联营总?
1 Project Overview The first-stage excavation works of the left-bank dam of the Three Gorges Project include the left bank 12 ~ 18 non-overflow dam section, the left bank 1 ~ 6 # dam section and 1-6 units section, the tailrace and the factory front area project. The construction area is about 430m × 430m. The excavation of earthwork from the top of 140m to the foundation of 22.2m, with a total excavation volume of 7.87 million m3. The project is divided into two tender. By the 337 joint venture total?