A Study on the Grouting Design Method in Tunnel Under Ground Water

摘要

This paper presents the design parameters of grouting derived from several published equations andrnthe results of seepage-stress coupled analysis with consideration of the difference between thernpermeability of soil and that of the grouted zone. It is also intended to prove the practicality andrnvalidity of the coupled analysis to predict the flow discharge seeping into the tunnel, displacements ofrntunnel face, lowering of ground water table, settlement of ground and stresses of tunnel supports in therndesign of grouting.