高速公路隧道初期支护变形原因及治理措施分析

Analysis on the causes and treatment measures of initial support deformation of expressway tunnel

文章以垣渑高速韶山峡隧道左洞ZK44+910-ZK44+958段、右洞YK44+953-YK44+985段初支变形为例,根据现场实际情况,在监控量测的基础上,以新奥法施工为指导思想,分析了初期支护变形、开裂的原因,并提出其处治措施,汲取相关的技术成果和经验总结,以指导隧道安全施工。

Taking the deformation of the initial branch of the left tunnel ZK44 910-ZK44 958 and the right tunnel YK44 953-YK44 985 of the Shaoshanxia tunnel as an example, according to the actual situation in the field, on the basis of monitoring and measuring, taking the construction of the new Austrian tunneling method as the guiding ideology, this paper analyzes the causes of the deformation and cracking of the initial support, puts forward its treatment measures, draws on the relevant technical achievements and experience, and guides the safe construction of the tunnel.