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“全孔护壁、孔底灌注”法和“孔底注浆、全孔灌注”法是劈裂式灌浆的两种施工方法。由于施工方法的不同，泥浆运动的机理也不同，因而灌浆效果亦存在差异。采用前者方法施工可在坝体内形成由多条上下较均匀，分布连续的主浆脉组成的防渗帷幕带，起始劈裂点可人为控制。而后者形成坝体内中上部宽、下部窄的防渗帷幕体，起始劈裂点是随机的。采用“全孔护壁，孔底灌注”劈裂式灌浆技术对水库均质土坝渗漏问题进行处理，经开挖竖井检查，发现沿坝轴线附近形成上下均匀、连续的由６～７条主浆脉组成的防渗帷幕带。这与传统的“孔底注浆、全孔灌注”劈裂式灌浆方法形成防渗帷幕有显著不同。
“Full hole retaining wall, bottom hole perfusion method” and “bottom hole grouting, full hole perfusion method” are two construction methods of split grouting. Due to different construction methods, the mechanism of mud movement is also different, so the grouting effect is also different. Using the former method of construction can be formed in the dam body by a number of more uniform, continuous distribution of the main pulp veins composed of anti-seepage curtain, the initial cleavage point can be artificially controlled. While the latter forms the upper and middle width of the dam body, the narrower lower impervious curtain body, the initial splitting point is random. The “full bore retaining wall, perfusion at the bottom of the hole” split grouting technology is adopted to treat the leaking problem of a homogeneous earth dam in the reservoir. After excavation of the shaft, it is found that the upper and lower shafts are formed uniformly along the axis of the dam, Slurry curtain composed of impervious curtain. This is significantly different from the traditional “hole bottom grouting, full hole perfusion” splitting grouting method to form a curtain impervious.