随着近几年高层基础的不断扩大、深度的不断增加，钢筋混凝土灌注桩越来越多地应用到工程当中，因其属于地下施工中的隐蔽工程，成桩质量较难控制，一但出现质量问题较难弥补，因此对质量的要求更加严格。%With continuous expansion and increasing depth of high - rise building recent years, more cast- in-situ concrete bored piles have been applied to projects. But pile is hard to control, as it belongs to the hidden work foundation in the quality of of underground construction. Once quality problems arise, it＇s more difficult to make up for. Thus, the requirement for quality is getting stricter
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