容量分别为 1万 t的 2个清水池 ,平面尺寸各为 5 0 .5 m× 42 .5 m,净高5 .30 m。场址为填筑而成 ,上部硬壳层很薄 ,其下淤泥质粉质粘土层 ,层厚达6 .7～ 12 .9m,天然地基承载力标准值只有 75 k Pa,含水量高 ,压缩性大 ,为满足设计荷载要求 ,采用双头水泥搅拌桩复合地基处理方 Two clean water tanks with a capacity of 10,000 t each have a plane size of 50.5 m by 42.5 m and a net height of 5.30 m. The site is filled, the upper crust is very thin, and the silty silty clay layer below it has a layer thickness of 6.7 to 12.9 m. The standard value of the natural foundation bearing capacity is only 75 kpa, and the water content is high. Compressibility, in order to meet the design load requirements, the use of double-head cement mixing pile composite foundation treatment