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传统的高压喷射灌浆技术在河道上建造地下水库截潜坝,实践证明速度快,效果好。但近几年由于受河道采砂影响,致使截潜高喷板墙上下游河床出现较大高差,在水土压力作用下,高喷板墙遭到破坏。实践发现,建造地下水库时采用桩墙结合技术,即用间隔一定距离的钢筋混凝土灌注桩承受水土压力,桩间用高喷板墙连接的方法,可较好的解决高喷板墙易受破坏的问题,满足了截潜要求。
The traditional high-pressure jet grouting technology to build subterranean dam in the river dam, proved to be fast and effective. In recent years, however, due to the impact of sand excavation, a large elevation difference occurs in the upper and lower reaches of the cutoff high wall. Under the action of water and earth pressure, the high-jet wall is destroyed. Practice found that the construction of underground reservoirs using pile-wall combination of technology, that is, a certain distance away from the reinforced concrete bored pile to withstand water and soil pressure, high-pressure wall with plywood wall connection method can be a better solution to the high-jet wall vulnerable to damage The problem, to meet the cut-off requirements.