劈裂式灌浆技术在土坝防渗加固中的应用

Application of split grouting in anti-seepage reinforcement of earth dam

介绍了阳朔县土坝工程普遍存在的坝体疏松、坝外坡洇湿渗漏及坝体变形、出现裂缝等现象,分析了其成因,论述了工程加固中采用劈裂式灌浆,形成铅直连续的防渗泥墙、堵塞漏洞、裂缝或切断软弱层,使坝体应力重新分布,提高变形稳定性,达到解决土坝渗漏的施工工艺和方法。

Dam body becoming loose, slight soaking seepage of exterior dam slope, dam body deformation and cracks are widely seen in the earth dams located in Yangsuo county. For settling the seepage problem of earth dams, based on an analysis of the causes, the author introduced how to apply split grouting in reinforcement project to construct vertical and continuous impervious mud wall, fill chinks and cracks or cut soft stratum, redistribute stress in dam body and improve deformation stability, including the construction technology and methods.