【摘要】 古田溪四级大坝坝基渗1号测压孔扬压水位存在着变化过程骤升和骤降、部分时期扬压水位明显偏高等异常现象,通过建立渗1号测压孔扬压水位统计模型,分析了扬压水位与上游水位之间的相关关系以及6号坝段坝基扬压力横向分布状态,研究了渗1号测压孔扬压水位异常的可能成因,评价了6号坝段坝基防渗帷幕的工作状态。更多还原

【Abstract】 There exist some abnormal phenomena at 1# pressure tap of the dam base of Gutianxi Dam Ⅳ,because the changing process of the uplift water level jumps suddenly and falls sharply and sometimes the uplift water level is obviously on the high side.By establishing the statistical model of the uplift water level at 1# pressure tap,this paper analyzes the correlation between the uplift water level and the upstream water level,as well as the horizontal distribution status of the uplift pressure in the foundation of 6# dam block.The possible causes of the abnormal uplift water level at 1# pressure tap are also studied,and the working condition of the anti-seepage curtain in the foundation of 6# dam block is evaluated.更多还原