基于某有压输水隧洞施工控制要点分析

Analysis on Construction Control Main Point of Water Conveyance Tunnel with Pressure

结合本隧洞工程各施工工序,测量、地质预报、开挖、初期支护、二次混凝土衬砌等实际施工情况,对大口径有压输水隧洞洞口外部排水系统的施做、洞室内部开挖前的超前地质预报,为管棚进洞做准备的导向墙施工、超前小导管施工、管棚进洞、洞室开挖、初期支护、二次混凝土衬砌等主要施工工序进行了初步分析与总结,以为同仁共商探讨。

In combination with the construction procedure of this tunnel project,based on surveying,geological forecast,excavation,preliminary bracing,secondary concrete lining etc,the main construction procedures,such as the construction of outer drainage system,advance geological forecast before interior excavation,guide wall preparing for pipe shed to the tunnel,advance small pipe,pipe shed into tunnel,preliminary bracing,are analyzed and summarized for discussion with colleagues.