During the process of the percolation

muddy water seepage can form a sediment deposit layer of weak hydraulic permeability to reduce the water leakage

which is different from the clear water seepage. According to the above muddy water seepage theory

the present study proposes that diversion of the muddy water from the Yellow River to the reservoir and then let the water to form the sediment deposit on the bottom to reduce leakage. Firstly

based on the analysis of characteristics of the silt of muddy Yellow River water

the research discusses the influence of the sediment deposit formed by the muddy Yellow River water on the leakage for the plain reservoir. Secondly

through the laboratory test

we get the correlation between the leakage and the sediment deposit formed by different water heads

and finally obtain the certain thickness of the deposit layer with the best impervious effect. Finally

the research results are applied to the seepage control of the plain reservoir; the theoretical calculation and the operation of the project evaluation show that the theory has satisfied effect and can be applied to other similar projects.