Construction Technology for Special Karst Cave Pile Foundation Treatment in Bridge Engineering
Aiming at the complex construction conditions of bead-like caves or large caves,pile foundations with connected karst caves at adjacent pile positions,and the development of karst in special road sections,which need to preserve the side buildings,this paper puts forward a new double-liquid grouting construction process for karst cave pile foundation in bridge engineering.Compared with the traditional process,this process has the advantages of convenient adoption of materials,no overflow of slurry in the grouting process,small operation area,being conducive to protecting the environment,high cement slurry injection pressure,allowing continuous operation,strong control-lability of the construction period,on-site adjustment of slurry ratio,and large manipulability of the grouting effect,etc.,and it has high promotion value.
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