过水堆石体边坡护坡混凝土楔形体稳定性研究

Study on the Stability of Protection Wedge Blocks on the Slope of Overflow Rockfill Weirs

针对护坡混凝土楔形体的结构特点,通过对楔形体的稳定形式及运动过程分析,提出护坡楔形体稳定的最根本原因,在于加强了块体之间的相互约束作用。文中首次给出了相互约束稳定的计算方法和各种稳定状态的条件,并归结了护坡楔形体稳定验算的步骤。

The all probable stable forms and initial moving process have been analized considering the structure feature of protection concrete wedge-shaped blocks. Then,the requirements of all stable states and calculation formulas have been presented separately. In the end of the paper, the design steps for the stability of protection wedge-shaped blocks on the slope of overflow rockfill weirs have been induced. Analysis shows that it is key for the stability of the protection wedge-shaped blocks that the special structure of wedge block have strengthened the constraints between blocks.