倒虹吸技术在隧洞与公路交叉施工中的应用

Application of Inverted Siphon Technology in the Cross Construction of Tunnel and Highway

摘要:

为解决引水工程中隧洞与公路交叉段工程空间冲突问题, 通过分析后头坪隧洞与绵西高速交叉工程的具体情况,综合考虑了选址条件以及现有技术条件,提出了倒虹管的布置方案和施工技术路线,详细分析了桩基保护施工、土石方开挖、边坡锚喷土钉墙施工等关键技术要点。结果表明:倒虹吸技术能够有效地解决交叉工程中的技术难题,合理的设计和施工方法能够保障结构的稳定性和安全性,为水利工程的复杂施工环境提供了参考。

Abstract:

To solve the problems of engineering space conflict in the cross section of tunnel and highway in water diversion projects, this study analyzes the specific situation of the cross project between Hou Touping Tunnel and Mianxi Expressway. It considers the site selection conditions and existing technical conditions comprehensively, puts forward the layout scheme and construction technical route of the inverted siphon, and analyzes in detail the key technical points such as pile foundation protection construction, earth and rock excavation, and slope anchor-shotcrete soil nailing wall construction. The results show that the inverted siphon technology can effectively solve the technical problems in cross projects, and reasonable design and construction methods can ensure the stability and safety of the structure, providing references for the complex construction environment of water projects.