【摘要】 大坳拦河坝为防止下游河床冲刷影响工程安全,在下游消能设施末端设置了地下连续墙。为研究连续墙对消能设施的影响,采用二维有限元剖面渗流程序计算了消力池连接段、消力池、护坦和海漫底板底的扬压力分布,分析了下游地下连续墙深度对消能防冲设施的稳定性的影响。结果表明,海漫末端的地下连续墙以悬挂式为宜。更多还原

【Abstract】 For the safety of the Daao gate dam, a diaphragm wall was constructed at the end of the energy dissipator to prevent downstream river bed scouring. To study the effect of diaphragm wall on energy dissipator, a seepage program based on 2-D finite element method is used to compute uplift forces at the bottom of the ramp connecting section, plunge pool, protection-apron and pitching, from which the stability of energy dissipator is analyzed in variety depth of the diaphragm wall. It can be shown from engineering computing that the suspended diaphragm wall at the end of pitching is advised.更多还原