沉管法隧道管内施工浅谈

摘要

沉管法隧道管内施工是在管段水下沉放对接成功安装后，管段基础处理灌砂、注浆及管段两侧和顶部回填工程完成，即管段稳定后进行的一项工程，包括：拆除导向装置、垂直千斤顶推杆回收、置换水箱、端封墙拆除等。本文以广州仑头隧道为例论述沉管隧道关键性节点工程--管内施工。%immersed tunnel tube in the construction of the pipe section water sink put butt after successful installation, pipe foundation treatment of sand filling grouting pipe section, and the sides and top of the backfill engineering completion, i.e. pipe stability after a project carried out by. Includes:removal of guiding device, vertical jack putter recovery, replacement tank, side sealing wall removal. This paper takes Guangzhou Luntou tunnel as an example of immersed tube tunnel key node project-pipe construction.