二次抛物线形截面混凝土溜槽技术研究

Research on technology of secondary parabolic section concrete chute

以兰州市某超高层建筑基础大体积混凝土浇筑中混凝土溜槽施工为例,通过基于拉格朗日法的抛物线形复合渠道的水力最佳断面法对混凝土溜槽截面优化,从而满足现场施工场地狭小、混凝土一次浇筑量大、可搭溜槽高跨比小等复杂工况,为以后类似工程提供可参考的意见。

This paper takes the construction of concrete chute in the mass concrete pouring of a super high-rise building foundation in Lanzhou City as an example.The cross-section of the concrete chute is optimized by the hydraulic optimal cross-section method of the parabolic composite channel based on the Lagrangian method,so as to meet the complex working conditions such as the narrow construction site,the large amount of concrete poured at one time,and the small height-span ratio of the chute that can be built.Provide reference for similar projects in the future.