钢筋混凝土喷锚逆作法支护技术在顶管工作井中的应用

The application of reinforced concrete counter sprayed anchor sustain art in the upper pipe working well

介绍了钢筋混凝土喷锚逆作法应用于顶管工作井制作的施工工艺流程 ,分析了混凝土喷锚支护构件的作用及加固机理 ,阐明了钢筋混凝土喷锚工作井的设计和计算原理 ,并指出了喷锚逆作法施工中应注意的事项 .实践证明该方法支护效果好 ,且经济、安全 .

The paper introduces the working flow of reinforced concrete reverse sprayed anchor art adopted in upper pipe working well construction, analyzes the function and mechanism of reinforced concrete sprayed anchor sustain components, explains the design and calculation principle of reinforced concrete sprayed anchor working wells and points out the problems that must be noticed in the reverse sprayed anchor construction. The practice proves that the method has a good sustain effect while economical and safe.