Abstract:Grouting method is a common way to control engineering geological hazard;the movement law of grout diffusion has important significance to engineering design and construction. Application of SV vibration string viscometer to determine the time-dependent behavior of viscosity of cement-silicate(C-S) grout,viscosity function curve is obtained by function fitting. Constitutive function of generalized Bingham fluid is adopted to deduce the pressure distribution function of C-S grout in single plate fracture. During the test,the pressure distribution law of C-S grout diffusion under condition of fixed velocity is analyzed;under the same conditions,the pressure field investigated as well as velocity field are investigated with numerical method. Based on theoretical analysis,simulation test and numerical calculation results,diffusion mechanism of C-S grout is analyzed. It is hoped that the results will be constructive to application of the C-S grout.
李术才,李树忱,张庆松,等. 岩溶裂隙水与不良地质情况超前预报研究[J]. 岩石力学与工程学报,2007,26(2):217-225.(LI Shucai,LI Shuchen,ZHANG Qingsong,et al. Forecast of the karst-fractured groundwater and defective geological conditions[J]. Chinese Journal of Rock Mechanics and Engineering,2007,26(2):217-225.(in Chinese))
[2]
SHIMODA M,OHMORI H. Ultra-fine grouting material[C]// Proceedings of Conference on Grouting in Geotechnical Engineering. New Orleans:[s. n.],1982:77-91.
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