堆石围堰变形特性试验研究

本文用结构模型试验方法,研究了堆石围堰在自重和水荷载作用下的变形特性,给出了自重、正常水荷载、漫坝水荷载(超载)和正常水荷载长期恒载作用情况下的水平位移和垂直位移分布规律。表明在各种正常荷载作用情况下,水平位移均小于垂直位移。水平位移与垂直位移的比值约为0.3。 文中还论述了堆石围堰结构模型试验中的模拟原则、相似常数、模型材料、量测技术等问题。

Study on the Deformation Characteristic of Earth and Rockfill Cofferdam

According to structural model test of earth and rockfill cofferdam under the action of gravity and water loading, studies of their deformation characteristics are conducted. Under the action of gravity, water loading, water overloading and constant loading over a long period of rime, the vertical and the horizontal displacement distributions are obtained. Results of tests show that the horizontal displacement is less than vertical displacement under the action of all normal loading, and the ratio of horizontal to vertical displacement is 3 :10 approximately.Simulative principle, similarity constants, model materials, measuring techniques ate .of atructural modal test of earth and rockfill cofferdam are also analysed am! discussed in this paper.