Construction method for installing reinforcement cage in hole of manual hole digging pile: Fid-Bau Portal

Construction method for installing reinforcement cage in hole of manual hole digging pile

GUO HUIJIN / HUANG HUIPING / GUO GUANLIANG / LIU HONG / ZHAO WEN

The invention relates to the technical field of pile foundation construction, in particular to a construction method for installing a reinforcement cage in a manual hole digging pile hole, which comprises the following steps of: 1, blanking stirrups, longitudinal steel bars and positioning bars; 2, longitudinal positioning ribs are installed at the four corners in the hole; thirdly, stirrups are installed layer by layer from bottom to top; fourthly, longitudinal steel bars are installed, and circulation is conducted in sequence till the steel bar cage is installed; and 5, mounting the sounding pipe. The construction method solves the problem that the reinforcement cage cannot be integrally hoisted into a hole due to a narrow construction site, the reinforcement cage is high in integrity, the reinforcements are firmly connected, the use of the positioning ribs, the reinforcement cross beams and the hanging ribs ensures that the reinforcement cage cannot fall off, the up-and-down interval mounting error of the stirrups is extremely small, the total length of the reinforcement cage is easy to control, and the construction efficiency is high. And the effect is far better than the construction quality of integrally hoisting the reinforcement cage into the hole.

本发明涉及桩基施工技术领域，更具体而言，涉及一种人工挖孔桩孔内安装钢筋笼施工方法，包括以下步骤：步骤一：箍筋、纵向钢筋、定位筋下料；步骤二：孔内四角安装纵向定位筋；步骤三：从下至上逐层安装箍筋；步骤四：安装纵向钢筋并依次循环直至钢筋笼安装完成；步骤五：安装声测管。本施工工法解决了因施工场地狭小而无法整体吊装钢筋笼入孔的难题，并且钢筋笼整体性强，钢筋之间连接牢固，定位筋、钢筋横梁及吊筋三者的使用保证了钢筋笼不会掉落，箍筋上下间距安装误差极小，钢筋笼总长好控制，效果远大于钢筋笼整体吊装入孔的施工质量。

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