Diffusion Law of Cement-Sodium Silicate Grout in Gravel Ground

doi:10.3969/j.cnki.jdxb.2015.05.014

Abstract

Abstract: Based on the seepage equation of the slurry in the porous media，the mathematical formulas of grouting flow time，grout amount，diffusion radius in gravel ground were derived.Under certain conditions，the grout viscosity of the cement-silicate grout change with time was obtained，the effects of grouting pressure and the time of cement-silicate grout arriving into ground on the grout diffusion radius in gravel ground were analyzed.The results indicate that the grout diffusion radius increase nonlinearly with the increase of the grouting pressure and decrease nonlinearly with the time of cement-silicate grout arriving into ground.The calculation results from mathematical formulas accord with the results of grouting engineering，which were grouted of cement-sodium silicate in gravel ground.

Key words: cement-silicate grout, Bingham grout, gravel ground, diffusion radius

WU You-Ping. Diffusion Law of Cement-Sodium Silicate Grout in Gravel Ground[J]. journal6, 2015, 36(5): 63-67.

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