Contact Inclined Tunnel Group Program To Determine The Design And Construction

In recent years, with the rapid development of our economy, highway obtained a rapid development, national highway network, highway construction gradually outspread. Because of the mountainous area highway construction design requirements and topography, the inevitable restrictions to build a tunnel engineering. Because our country is a mountainous country, tunnel construction, embodies the characteristic of fast. Tunnel project is often the key link in the highway construction, affecting the whole construction progress, so the rapid construction of tunnel is put forward by pressing requirements, how to optimize the tunnel construction, achieve rapid construction safety of rapid construction purpose is today's tunnel key problems to be solved.Taking the red river 1-4 tunnel, the project is based on the literatures, the tunnel construction process of safety, quick question -- contact with the construction of inclined scheme design work, The vertical shafts or set for tunnel construction is not only can feed and dregs channel, also can increase the tunnel construction, improve the working efficiency of the construction of the tunnel construction safety, Four tunnels are due to have the second lining supporting appeared different degree of destruction, serious impact on the main tunnel construction and engineering construction progress, in order to guarantee the safety of tunnel, decision support for the second lining of tunnel construction, but due to the tunnel construction, mining smaller before the second lining construction cannot follow construction, In this study, 1-4 tunnel portal or adding methods to reduce the vertical tunnel construction process of safety risk, quicken the construction progress of the tunnel, Based on analysis of tunnel engineering geological conditions of the regional survey and evaluation of the basis of the tunnel portal construction design scheme of tunnel construction scheme, the vertical design and construction scheme of tunnel control and research.This paper through the portal and the shaft construction design scheme, and from the economic factors, environmental protection, construction of various factors, the final analysis of tunnel portal construction design scheme. Research work effectively resolve the practical engineering problems.