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在民用和工业建筑中,钻孔灌注桩以其适应性强、施工操作简单、设备投入低等的优点被人们广泛的应用,由于钻孔灌注桩是一项较为复杂的地下隐蔽工程,所以在其施工过程中的影响因素也较为复杂,控制不严、操作不当、地质条件的特殊性会导致塌孔、灌注混凝土中阻、钢筋笼上浮、缩颈与断桩等问题,文章根据钻孔灌注桩施工经验,提出钻孔灌注桩施工中存在的质量问题并进行了分析。
In civil and industrial buildings, bored piles are widely used due to their strong adaptability, simple operation and low equipment investment. Due to the complicated underground concealed bored pile, The influencing factors in the construction process are also complex, the control is not strict and the operation is not proper. The special geological conditions will lead to the collapse of the hole, the resistance of the perfusion concrete, the reinforcement cage floating, necking and broken pile and so on. Pile construction experience, put forward the quality problems existing in the construction of cast-in-place bored pile and analyzed.