The concrete placement of lateral wall adopted stiff, large and leveling suspension form works in order to ensure the quality and easy handling.
洞身边墙混凝土浇筑采用刚度大、大块及表面平整度好的多卡悬臂模板，能保证质量、使用灵活、有利于赶工。
2
To ensure the quality of the deck, the quality of sand gravel aggregate, cement, additives, leveling of slope face and erection of lateral forms, and the collapse degree were controlled strictly.