富水隧道虹吸式反坡排水施工技术
Construction Technology Siphon and Inverted Slope Drainage for Water-Rich Tunnels
刘洋 1周泽林1
作者信息
- 1. 中国十九冶集团有限公司,重庆 404500
- 折叠
摘要
开云高速龙缸隧道为富水隧道,两端掘进,出口工区为反坡排水,施工过程中单洞最大出水量达9 072.0 m3/d,根据现有反坡排水技术,需要设置集水井与排水泵站,从而导致长期反坡排水产生高额处治费用.该文研究一种利用虹吸原理,设置可移动集水箱、虹吸水管和洞外沉淀池构成的自动虹吸排水系统,可显著降低富水隧道反坡排水的处治成本,可为同类富水隧道施工提供参考和借鉴.
Abstract
The Longgang Tunnel on the Kaiyun Expressway,known as the water-rich Tunnel,is excavated from both ends,with a reverse slope drainage system at the outlet work area.During construction,the maximum single-hole water discharge reached 9,072.0 m3/d.According to existing reverse slope drainage technologies,the installation of collecting wells and drainage pumping stations is required,leading to high long-term maintenance costs for reverse slope drainage.This study explores a novel approach utilizing the siphon principle,involving a self-priming drainage system composed of movable collecting tanks,siphon pipes,and external settling tanks.This system significantly reduces the treatment cost of reverse slope.drainage in the water-rich Tunnel and provides valuable reference for similar water-rich tunnel construction projects.
关键词
富水隧道/反坡排水/虹吸原理Key words
Water-rich tunnel/Reverse slope drainage/Siphon principle引用本文复制引用
出版年
2024
NETL
NSTL
万方数据