【摘 要】
：
1971年,碧口水电站在厂房围堰地基中建造了一道粘土防渗墙,采用绳式冲击钻机造槽形孔、泥浆固壁、直接向槽孔中回填粘性土而成墙,具有一定的防渗效果,较同类型的混凝土防渗
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1971年,碧口水电站在厂房围堰地基中建造了一道粘土防渗墙,采用绳式冲击钻机造槽形孔、泥浆固壁、直接向槽孔中回填粘性土而成墙,具有一定的防渗效果,较同类型的混凝土防渗墙造价低,施工速度快。粘土防渗墙的施工为今后一些临时阻水墙的施工开辟了一项新的防渗方法。
In 1971, Bikou hydropower station built a clay cutoff wall in the foundation of the cofferdam of the plant. A rope impact drill was used to make the groove-shaped hole and the mud solid wall to directly backfill the clay in the slot to form a wall, which has a certain degree of protection Seepage effect, than the same type of concrete cutoff wall low cost, construction speed. The construction of clay cutoff wall has opened up a new anti-seepage method for the construction of some temporary water blocking walls in the future.
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