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浙江省部分沿海经济开发区为筑堤填海而成,填海宕渣粒径往往过大,在深基坑围护中不宜直接采用钻孔灌注桩、水泥搅拌桩等桩型,而高压旋喷桩则可以解决此施工难题,该桩型可以直接在颗粒直径较大的宕渣层中施工,不需要采取换填土措施,方便施工,降低工程造价,缩短工期。
Part of the coastal economic development zones in Zhejiang Province are reclaimed from embankments, and the diameter of slag in the reclaimed sea is often too large. It is not advisable to adopt directly the bored piles and cement mixing piles in the deep foundation pit support, Spraying pile can solve this construction problem. The pile type can be directly applied in the slag layer with larger particle diameter. It does not need to take the measures of changing soil and filling, which is convenient for construction, reduces the construction cost and shortens the construction period.