砂层条件下顶管工作井施工方法的研究

Sand Pipe Jacking Work Well under the condition of retaining

概述了顶管施工工作井支护的旋喷桩逆作法和沉井法两种方法施工的基本原理与工艺流程.结合工程实例,对上述的两种施工方法分别在技术经济方面、施工成本方面进行对比,最后得出旋喷桩逆作法和沉井法两种工作井施工方法各自适宜的条件.

The inverse method of rotary jet grouting pile to support work well in pipe jacking construction and the open caisson method construction are introduced; the basic principle and process are illustrated. Combined with the engineering example, the above two construction methods are compared in technical and economic aspects. The situation favourable to these two different construction methods is obtained by comparison.