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一、发展历史及发展趋势 50年代初意大利和法国开始用泥浆固壁钻孔法在砂砾地基上建造水工防渗墙.意大利于1951年～1952年在巴舍斯导流围堰下修建了对接型防渗墙.于1954～1955年在玛利亚-奥-拉哥坝,通过含有大孤石的深砂砾层,采用依科斯——维代尔法冲击钻造孔泥浆固壁修建了连锁型混凝土防渗墙.以后又发展了槽孔混凝土墙,用罗地沃——马可尼法,分段挖槽用冲击钻钻进,膨润土泥浆反循环出碴,修建了莱因河侧渠电站围堰防渗墙,深40米,厚0.8米.
First, the development history and development trend In the early 1950s, Italy and France began to use mud solid wall drilling method to construct hydraulic seepage prevention wall on the gravel foundation.Italy was built in Basque diversion cofferdam from 1951 to 1952 Docking type impermeable wall In 1954 ~ 1955 in the Maria - Austria - Largo dam, through the deep gneiss containing a large boulder, using Icos - Vidal impact drilling mud hole wall construction Chain-type concrete cutoff wall.After the development of the slot concrete wall, with the Rhodivo-Marconi method, section digging with percussion drilling, bentonite mud reverse circulation ballast, the construction of the Rhine side Canal power station cofferdam cutoff wall, 40 meters deep, 0.8 meters thick.