The molding quality of the concrete of the energy dissipation and scour prevention structure of the water conservancy project directly affects the effect of energy dissipation and scour prevention.Especially the molding quality of concrete in the arc section is particularly important.However,because of the complex shape of the arc section of the concrete,pouring molding difficulty,surface flatness is difficult to control.This paper analyzes the main reasons affecting the appearance quality of concrete molding of arc section through field test.In practice,through the combination of controlling the thickness of concrete layering,calculating and arranging the vibration points,and removing the mold and closing the surface when the concrete is in the critical initial solidification state,the bubbles and blisters on the surface of the concrete are completely avoided on the basis of guaranteeing the concrete molding.Compared with the traditional construction method,the construction operation of this process is simple and easy to implement.This technology has certain reference significance for forming and eliminating surface air bubbles for arc section concrete and slope section concrete which needs to be cast in vertical mold.
关键词
反弧段/振捣/分层浇筑/质量控制
Key words
arc section/concrete pounding/layered casting/quality control
维普
万方数据