高速公路隧道围岩压力的研究

高速公路隧道施工过程中,隧道围岩压力对行车的安全性、隧道耐久性及投资者的经济效益和社会效益有着重要作用。本文通过对围岩概念以及形成机理的了解,分析了构造应力场、自重应力场,提出了围岩压力的确定方法。为高速公路隧道的设计提供理论指导。

Study on Wall Rock Pressure of Expressway Tunnel

In highway tunnel construction process,the wall rock pressure have impact on driving safety,durability and economic and social benefits of tunnel investors.This paper presents the concept of wall rock and formation mechanism,analyzes the tectonic stress field,self-gravity stress field,and puts forward the determination method of pressure of wall roll.At last,the paper provides theoretical guidance for the design of the highway tunnel.