曲率可调悬臂模板的研究与应用

Development and Application of Curvature-adjusted Cantilever Form

基于悬臂模板在双曲拱坝施工中存在的问题,研发了一种"曲率可调的悬臂模板"。该模板面板在宽度方向上设计成柔性可调,可用更短的直线段来模拟曲线,减小了拟合误差;整个双曲拱坝施工可只采用一种规格的模板,免去了因拱坝曲率变化而需要调换不同宽度模板位置的工作量;因两侧边面板曲率可调,又可微量扭转,因而相邻两套模板连接紧密,不需拼缝板或其他调缝隙装置。较常规悬臂模板,曲率可调模板减少了工作量,提高了外观质量,节约了施工成本。

For solving the problems in applying cantilever forms for double-curvature arch dam construction, a kind of curvature-adjusted cantilever form is developed. The width of form is designed as flexible and adjustable for fitting dam body curve with shorter straight line segments. The construction of dam can be completed by using the forms with same parameters, and because the curvature of side panels is adjustable and can be slightly twisted, two forms can be closely connected. Compared with conventional cantilever forms, the utilization of this form can reduce workload, improve appearance quality and save cost.