带键槽透水底板破坏模式研究

Study on Destruction Mode of Slotted Pervious Floor

通过数值模拟建立三维非线性接触有限元模型,通过非线性静力计算与动力计算分析,研究带键槽透水底板可能的破坏模式,为工程建设、优化带键槽透水底板的体型、水垫塘安全等提供参考。通过模拟可以看出,键槽提高了透水底板水垫塘的整体抗力水平;中间板块的变形速率远远大于边缘板块,中间板块由于锚固失效首先失稳;键槽处的剪应力小于其抗剪强度,不会发生受剪破坏。

In this paper,a three-dimensional nonlinear contact finite element model is established by numerical simulation,and the possible failure mode of permeable floor is studied through nonlinear static calculation and dynamic calculation,which provides reference for engineering construction,body shape of optimized permeable floor and safety of plunge pool. Through the simulation,it can be seen that the keyway enhances the overall resistance level of the water cushion pool. The deformation rate of the middle plate is much larger than that of the edge plate,and the middle plate firstly fails to be stable due to the failure of anchoring. The shear stress at the key groove is less than its shear strength It does not occur shear failure.