高速公路隧道工程溶洞处置方案施工要点分析

Analysis of Key Construction Points of Solution of Karst Cave in Expressway Tunnel Engineering

研究了高速公路隧道工程溶洞处置方案施工要点,在明确具体工程概况的基础上,从溶洞处置原则和方案制订两方面出发,分析了溶洞处置措施的适用性,总结喷混凝土封闭、超前支护、施作护拱、回填喷砂、二次衬砌等主要施工技术的应用要点,有利于提高溶洞处置效果,减少地质灾害的发生,保障施工过程的安全性与稳定性。

This paper studies the construction key points of karst cave disposal scheme for expressway tunnel engineering,analyzes the applicability of karst cave disposal measures from two aspects of karst cave disposal principle and scheme formulation on the basis of the specific project overview,and summarizes the application key points of main construction technologies such as shotcrete closure,advance support,arch protection,backfill sandblasting and secondary lining.It is beneficial to improve the treatment effect of karst caves,reduce the occurrence of geological disasters,and ensure the safety and stability of the construction process.