Abstract
The time-varying viscosity of common grout and the controllable grout are measured with a rotation viscometer in experiments. The time-varying viscosity of grout is analyzed according to the characteristics in the process of anti-seepage treatment for gravel foundation. The principle of effective stress for porous medium is applied to analyzes the fluid-structure coupling in grouting. In the consideration of coupling physical variables, dynamic models of porosity, permeability and viscosity are constructed. The diffusion radius can thus be defined by the foundational porosity. The distribution of holes in field experiments is designed according to the diffusion radius of grout. Then, the permeability test is designed to verify the grout effect. The calculated diffusion radius coincides with experimental results, and the permeability meets the requirements of the project, which is valuable for the anti-seepage treatment in gravel foundation.
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Project supported by the Shanghai Leading Academic Discipline Project (Grant No. S30106), the Shanghai Program for Innovation Research Team in Universities.
Biography: CHENG Peng-da (1983-), Male, Ph. D. Candidate
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Cheng, Pd., Li, L., Tang, J. et al. Application of Time-Varying Viscous Grout in Gravelfoundation Anti-Seepage Treatment. J Hydrodyn 23, 391–397 (2011). https://doi.org/10.1016/S1001-6058(10)60128-X
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DOI: https://doi.org/10.1016/S1001-6058(10)60128-X