一种新型的导流板式异形丁字坝结构设计

Design of Special T-dam with New Deflectors

丁字坝是一种重要的水力消能坝工结构.针对传统丁字坝功能单一,消能效果差的缺点,对丁字坝的核心功能进行改进,提出了一种加装了导流板的异形丁字坝结构形式,并进行了室内水力试验.试验结果证明,该坝型具有较强的导流能力,同时兼具消能特征,为保护堤防结构稳定提供了新的坝型思路.

T-dam is an important dam structure used for hydraulic energy dissipation. Towards the shortcomings of traditional T-dam including single function and poor effect of energy dissipation, this study improved the core functionality of the traditional T-dam and proposed a new T-dam type by adding the installation of dam deflectors, and the new dam was then tested through indoor hydraulic experiments. Results show that the proposed new dam has strong hydraulic conductivity and energy dissipation. This paper provides a new idea for protecting the structural stability of the dike.