水泥基-水玻璃劈裂注浆在大坝坝脚防渗中的现场试验研究

Field Test Study on Cement-water glass splitting grouting Applied in Dam Foot Seepage Control

劈裂注浆技术目前已经被广泛应用于防渗加固,但是在可注性差的土体注浆领域的理论和实践研究比较欠缺。文章以辽宁省营口市兰窝水库大坝防渗工程为例,利用现场试验的方式对水泥基-水玻璃劈裂注浆在大坝防渗加固中的应用进行研究,结果显示试验中的注浆设计完全满足大坝坝脚的防渗要求,建议在大坝除险加固工程中应用。

Split grouting technology has been widely used in seepage control and reinforcement for projects.But the problem still exists relatively lacking of theoretical and practical research in the grouting field for earth with poor grouting ability.In this paper,the author,taking Lanwo reservoir dam seepage control project in Yingkou City of Liaoning Province as an example,carried out the study on cement-water glass splitting grouting applied in seepage control and reinforcement for the dam by means of field test.The conclusion shows that the grouting design in the test fully meets the seepage control requirements for dam foot.The author suggests applying it in risk control and reinforcement for the dam project.