钻孔灌注桩的施工工艺及质量控制.doc

摘 要 PAGE 陕西交通职业技术学院毕业论文 论 文 钻孔灌注桩的施工工艺及质量控制 年 月 日 摘要 Ⅰ 摘 要 灌注桩具有施工简单、 噪声小、 承载力高、 桩径大、适应各类地质条件等优点，使得桩基础得到了越来越广泛的应用，成为各类基础类型中采用最多的基础形式之一。本文结合桥梁钻孔灌注桩的施工顺序及工艺、桩基检测方法，对桥梁施工过程中施工质量问题防治及控制措施以及钻孔灌注桩的新技术等提出了一些看法。目前，钻孔灌注工艺正日益完善，但往往由于工艺不当，断桩、堵管、夹泥、蜂窝、少灌等质量问题也时有发生。因此，运用科学，实用的砼灌注工艺以确保工程质量显得极为重要。分析钻孔灌注桩在水利施工过程中可能发生的事故，进行必要的防范是保证钻孔灌注桩成桩质量，确保基础工程安全的重要措施。 关键词：钻孔灌注桩 施工技术 质量控制 防治措施 新技术Abstract The filling pile has the construction to be simple,noise low, bear the weight of a high level,large pile diameter,adapts merits and so on each kind of geological condition.Enabled the pile foundation to obtain the more and more widespread application. Becomes in each kind of foundation type to use one of most foundation forms. This article unifies the bridge drill hole filling pile the construction order,the craft and the pile foundation examination method to constructed quality question preventing and controlling to the bridge construction process in and the control measure as well as the drill hole filling pile new technology and so on proposed some views.Now the drill hole irrigation craft is consummating day by day. But because often the craft improper,the pile broke,the pipe is stopped up,mix mud,a honeycomb-like thing,little fills and so on the quality questions also to sometimes occur. Therefore,use of science and the practical pouring of concrete craft guarantees the project quality to appear extremely importantly. The analysis drill hole filling pile the accident which possibly occurs in the water conservation construction process,carries on the essential guard is guaranteed the drill hole filling pile becomes the pile quality to guarantees the foundation engineering security the important measure. Key words:? 2 Ⅱ 目 录 一、施工程序与工艺…………………………………………………………………1 （一）施工前的准备…………………………………………………………………1 （二）护筒的埋设…………………………………………………………………… （三）钻机的安装定位……………………………………………………………… （四）钻孔、终孔、清孔…………………………………………………………… （五）泥浆护壁……………………………………………………………………… （六）钢筋笼安制及导管