The article takes the Langhuang Ⅱ Tunnel as the research object,analyzes the construction technology of tunnel excavation and initial support of the inverted arch into a ring.This technology is of great significance in improving tunnel construction efficiency,ensuring construction safety,reducing costs,and improving engineering quality.Among them,in the process of tunnel excavation,the selection of tunnel excavation methods and stability measures for excavation surfaces were elaborated;In the construction of the initial support ring of the inverted arch,the importance of the initial support and the construction process of the initial support ring of the inverted arch were proposed,providing scientific basis and reference for actual construction.The results indicate that the construction technology of tunnel excavation and initial support of the inverted arch into a ring provides new ideas and methods for the improvement and development of tunnel construction technology.
tunnel excavationthe initial support of the inverted arch forms a ringdrilling and blasting methodmechanical excavation method
NETL
NSTL
维普
万方数据
