Application of Membrane Grouting in Deep Foundation Pit Construction
The rock mass of the foundation surface of the ecological power station of the Yingliangbao Hydro-power Project is fractured,with developed cracks,and there are varying degrees of water inrush on the large ar-ea of the foundation surface.The surge of water on the foundation surface can easily cause slope instability and decrease in foundation bearing capacity,which not only affects the quality of concrete pouring for the bottom plate of the ecological power plant,but also seriously affects the construction progress of the entire project.Through the construction of membrane grouting in the ecological plant foundation pit area of the first hub of the Yingliangbao Hydropower Project,the construction effect has proven that membrane grouting can effec-tively cut off groundwater leakage into the foundation pit,while also playing a role in foundation reinforcement,ensuring the subsequent construction progress.
Deep foundation pitBurst of waterMembrane groutingFoundation consolidationYingliangbao Hydropower Project