The Application of Cement Mixing Pile Based on Deep Mixing Method in the Seepage of Gravity Dam Foundation of Luzao Reservoir
In order to analyze the anti-seepage technology of deep mixing piles in the gravity dam foundation of Lushao reservoir,the design and settlement law of composite foundation were studied,and the seepage process of the dam foundation was simulated and evaluated.The research results indicate that when the usage rate of deep mixing piles is 20%or 25%,the settlement of composite foundation decreases with the increase of pile length ratio,and the increase of replacement rate leads to a decrease in the settlement of composite foundation.When there is no deep mixing pile or 14m deep mixing pile,the seepage flow rates of the dam foundation section are 1.016×10-5 and 8.002×10-6m3/s.The permeability coefficient of a dam has a certain impact on its permeability.The lower the permeability coefficient of a dam,the lower its permeability.
deep mixing pilecementdam foundationseepagereinforceLuzao reservoir