Experimental study on the uplifting force of the pervious slabs in plunge pool;
水垫塘透水底板上举力试验研究
With bottom protection,the stability and possible destructive zone of bottom and slope of the cushion pool are studied according to time-average pressure,fluctuating pressure and uplift force.
在水垫塘平底板(护底)情况下,根据测试出的时均压力、脉动压力和上举力分布分析了底板及边坡的稳定性,以及可能破坏的范围;在水垫塘护坡不护底情况下,研究了各泄洪工况下水垫塘底部及坡脚的冲(淘)刷形态,最大冲(淘)刷深度;在此基础上,分析了水垫塘坡脚淘刷原因,提出了水垫塘的优化布置体型,即扩宽水垫塘并加设护坡台板。
According to the characteristics of the flutuating compressive wave, the model of transient flow is applied to investigate the transmission of the pressure in cracks and the generation of the transient uplift force.
论述了压力波在缝隙中的传播特性和瞬时上举力的成因。