Under the Condition of Weak Structure Supporting Technology Application
During the construction of diversion tunnel,if the surrounding rock is unstable,the construction diffi-culty will increase.In this paper,the commonly used construction support technology under the condition of weak structure is deeply analyzed.It is necessary to analyze the concrete condition of the weak structure and determine the suitable support method when the tunnel excavation is carried out under the condition of weak structure.In this project,steel frame structure is used as the main supporting material,according to the characteristics and ge-ological conditions of the tunnel,the excavation of milling machine and manual excavation are effectively com-bined,and the construction is assisted by the safety protection shed with high strength,light weight and can be lifted,which improves the construction efficiency and reduces the safety risks in the process of tunnel excavation and support.
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