中文摘要：

通过在模拟的砂卵（砾）石层中进行注浆试验，研究分析注浆压力p、注浆时间t、浆液水灰比m、地层渗透系数k、孔隙度n的单因素和多因素对浆液扩散半径尺、注浆后结石体抗压强度P的影响规律及它们之间的相互关系。试验结果表明：R随着p、t、k、m的增加而增大，影响R的显著因素是p，其次是k，t和m：P随着p、t、昨的增加而增大，随着m的减小而增加，p对注浆后P有较大的影响，n、t次之，而m则占有明显的优势。利用计算机优化回归实验数据，得出了它们之间的关系式。

英文摘要：

By the grouting simulation test in sandy gravels, the influences of grouting pressurep, grouting time t, water cement ratio m, permeability coefficient k, porosity n upon grout diffusion radius R, concretion strength P and their correlation were analyzed. It was shown that R increased with the increasing of p, t, m and k. Distinct influencing factor on grout diffusion radius R was p and k, but the influences of t and m was small. Strength P of grouted gravels increased with the increasing p, t, n, and decreased with the decreasing of m. By regressing test data with computer, the theoretical relation was educed.