大型顶管变形控制技术探讨

Discussion on Deformation Control Technology of Large Pipe Jacking

本工程地质条件复杂,顶管周围分布有众多管线,设计采用土压平衡式顶管机进行施工,本工程采用了渣土改良、控制顶进速度、同步注浆等变形控制技术有效的控制了地表沉降和隆起,保障了施工过程中场地及周边土地的稳定。

The engineering geological conditions are complex. There are many pipelines around the pipe jacking. We use EPB pipe jacking machine to complete this engineering. In order to control surface subsidence and uplift effectively, we adopt some deformation control technology such as improving muck, controlling construction speed, grouting Simultaneously and so on. These measures guarantee the stability of construction site and surrounding soil.