Experimental study on the influence of grouting pressure on the grouting transformation effect of porous media
YI Sihai
ZHONG Rui
JING Shengqiang
WANG Yue
ZHU Wei
Abstract：In order to analyze the influence of grouting pressure on the grouting transformation effect of loose layers,the indoor experiments are conducted to study the permeability and diffusion law of grout in porous media under different grouting pressures.The experimental studies have shown that the diffusion radius of grout in porous media is related to the grouting pressure.When the grouting pressure is below 0.08 MPa,the diffusion radius of grout will rapidly decrease;When the grouting pressure is higher than 0.08 MPa,the diffu-sion radius of the slurry slowly increases;Grouting transformation can significantly improve the anti-seepage ability of porous media.The closer the injection hole is,the smaller the permeability coefficient of the injected medium,the stronger the anti-seepage ability,and the highest anti-seepage ability can be increased by about 99%;When grouting and transforming porous media in an anhydrous environment,the shape of the stone body is mostly a circular cone shape,with a narrow diffusion radius of the slurry.This research achievement can provide theoretical support for the anti-seepage transformation of loose layer grouting.
Keywords：grouting transformationgrouting pressurepermeability coefficientdiffusion radiusmorphology of stone body
Publication Date：2024-12-28
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 1-6 )