The excavation of the right slope of the approach channel for the inlet of the spillway tunnel in Heihe Water Control Project has a significant effect upon the construction quality and the cost of the project.
The excavation of the right slope of the approach channel for the inlet of the spillway tunnel in Heihe Water Control Project has a significant effect upon the construction quality and the cost of the project.
摘要黑河水利枢纽右岸溢洪洞进口引渠右岸边坡的开挖方案，是影响该工程质量和造价的突出问题。