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Construction Mechanical Effects on the Surrounding Rock Pressure of a Shallow Buried Tunnel with Double Bias and Small Clear Space
The surrounding rock pressure distribution, the displacement deformation law, force characteristics of support structure, and the distribution of plastic ranges were studied through finite element simulation of construction process of a tunnel. Then the data obtained by the numerical simulation was compared with the data measured in the construction. The results show that construction has great effect on the initial formation stress, and the stress in the top and bottom part of the entrance offatcat:2m5dkki76faqbhy7tucl7xtqxy