陡倾松散堆积体边坡条件下浅埋偏压隧道出洞关键技术研究

Research on Key Technology of Shallow Buried Bias Tunnel Exit Under the Condition of Steep Loose Accumulation Slope

深汕西高速改扩建项目TJ6合同段圆墩2号隧道出洞位置边坡地形陡峭、地质复杂,施工难度大,安全风险高,本文针对工程施工难题,开展隧道出洞关键技术研究,形成相应的施工新技术,解决了边坡抗滑移、隧道抗偏压难题,实现了安全出洞,为后期隧道运营提供了安全保障。

The TJ6 contract section of the Shenzhen Shantou West Expressway renovation and expansion project,Yuandun No.2 tunnel,has steep slope terrain and complex geological conditions at the exit location,making construction difficult and posing high safety risks.This article focuses on the construction difficulties,conducts research on key tunnel exit technologies,and forms corresponding new construction technologies to solve the problems of slope anti slip and tunnel anti bias pressure,achieving safe exit and providing safety guarantee for later tunnel operation.