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由于钻孔灌注桩施工工艺流程相互衔接紧密,且多在水下及地下,施工技术复杂,很容易出现各种质量缺陷,影响桩身的完整性和桩的承载能力。为避免出现质量事故,在施工中严格控制钻孔灌注桩施工的每一环节,应在施工前对各种质量影响因素有详细的考虑,并加强施工质量管理,确保工程质量和施工进度。本文通过焦作黄河东安混凝土桩坝护岸工程施工中对钻孔前、钻孔施工和成桩质量的控制,能够有效地控制钻孔混凝土灌注桩施工质量,取得了良好的质量效果。
As the bored pile construction process closely interlinked with each other, and more under water and underground, construction technology is complex, it is prone to various quality defects, affecting the integrity of the pile and pile carrying capacity. In order to avoid quality accidents, every step of the construction of the bored pile should be strictly controlled. Various quality factors should be considered in detail before construction, and the construction quality management should be strengthened so as to ensure the construction quality and construction schedule. In this paper, the construction quality of the bored concrete bored pile can be controlled effectively by the pre-borehole, borehole construction and pile quality control in the construction of the bank protection of the Dong’an Concrete Pile Dam in Jiaozuo. The good quality effect has been achieved.