论文部分内容阅读
随着我国交通基础设施建设的快速发展,钻孔灌注桩作为一种基础形式以其适应性强、成本适中、施工简便等特点仍将被广泛地应用于公路桥梁及其它工程领域。灌注桩属于隐蔽工程,但由于影响灌注桩施工质量的因素很多,质量检查也比较困难,对其施工过程每一环节都必须要严格要求,对各种影响因素都必须有详细的考虑,如地质因素、钻孔工艺、护壁、钢筋笼的上浮、混凝土的配制、灌注等。若稍有不慎或措施不严,就会在灌注中产生质量事故,小到塌孔松散、缩颈,大到断桩报废,给国家财产造成重大损失,直至影响工期并对整个工程质量产生不利影响。
With the rapid development of transportation infrastructure in our country, bored piles as a basic form will be widely used in highway bridges and other engineering fields due to their adaptability, moderate cost and simple construction. Cast-in-situ piles are concealed projects, but due to many factors affecting the quality of cast-in-place piles, quality inspection is also more difficult, and every step of the construction process must be strictly required. Various influencing factors must be considered in detail, Factors, drilling technology, retaining walls, steel cage floating, concrete preparation, perfusion and so on. If the slightest carelessness or measures lax, it will produce quality in the infusion of accidents, small holes collapsed hole, necking, large broken pile scrapped, causing great losses to state property until the duration of the project and the quality of the entire project Negative Effects.