摘要
为了降低河堤在行洪时的出口比降 ,提高堤防的稳定性 ,提出水平排水板工法的概念 .利用一套特殊的试验装置 ,通过试验明确了上覆土压力对水平排水板排水性能的影响 ;使用有限元渗流分析法对不同土压力、不同设置长度下的排水效果进行了分析 ;揭示了土压力对排水效果的影响 ;讨论了水平排水板的设置方法 ;
The concept of horizontal drainage board method is proposed for the improvement of the stability of river embankment by the control of hydraulic gradient in flood infiltration. By use of a special test equipment, the effect of earth pressure on the drainage pressure is measured. Then the drainage effect under different earth pressures and at different installation lengths is discussed based on seepage analysis by the finite element method. Through the research, the effect of earth pressure on drainage, the installation method of drainage board and so on are clarified. Finally the efficiency of and prospect for the horizontal drainage technology are confirmed.
出处
《水利水电科技进展》
CSCD
2001年第3期29-32,共4页
Advances in Science and Technology of Water Resources
关键词
水平排水板
透水性
排水
堤防
土压力
river embankment
filtration
drainage layer
horizontal drainage board
permeability
drainage effect
