长城岭隧道中隔墙顶防排水施工质量控制

• 作 者: 刘吉山 吴庆东 雷宇
• 机 构: 山东省路桥集团有公司,
• 出 处: 公路交通科技(应用技术版)
• 发表日期: 2012年08期
• 关键词: 中隔墙 长城岭 双联拱隧道 二次衬砌 施工质量控制 排水施工 主洞 防排水措施 双联 处理难度

长城岭隧道为双联拱形式、整体式中隔墙,施工工艺复杂,中隔墙顶与主洞二次衬砌结合部为防水薄弱点,防排水问题处理难度大。施工中遵循“防、截、排、堵相结合”的综合治理原则。关键控制点是处理好二次衬砌每模间、主洞二次衬砌与中隔墙间施工缝的防排水,同时加强施工中对防水层的保护。通过采取多种措施,达到了防水可靠、排水畅通、经济合理的目的。

The Great Wall Ridge Tunnel is a double-arch type monolithic mid-wall with complicated construction process. The joint between the middle wall of the middle partition wall and the main tunnel is a weak point of waterproofing, and the drainage and drainage problems are difficult to handle. Construction follow the “anti-cut, cut, block combined with” the principle of comprehensive management. The key control point is to handle the secondary lining each mode, the main tunnel secondary lining and the construction of the seams between the waterproofing and drainage, while strengthening the protection of the waterproof layer. Through a variety of measures to achieve a reliable waterproof, smooth drainage, economic and reasonable purposes.