Force Analysis of Starting Reaction Frame of Shield Machine and Station Structure
The shield construction method is widely used in the construction of urban subways in China.When the shield starts,it is necessary to install a reaction frame in the shaft to resist the reverse thrust of the shield.Relying on the actual projects,this paper uses the finite element software ANSYS to model the initial reaction force frame and the station structure in the shaft,and analyzes the force characteristics of the reaction frame and the station structure under the initial reverse thrust of the shield,aiming to put forward relevant recom-mendations on key monitoring locations and projects to ensure the safe start of shields.
Starting reaction frame of shield machineReaction frameStation structureForce analysisCity subway