抄録
In the present paper, the fundamental stresses of the arch type tunnel and its boundary condition governing the elastic theory of curved beam whose stress distribution is assumed to obey Bernoulli-Navier's hypothesis are studied in case when especially the earth pressure applied to the tunnel linearly varying in the depth direction of the tunnel is considered. As the results, it is clarified that above method generally can be obtained for axial compression, shear force, bending moment, angle of deflection, and deflection. Good agreement was also obtained between photoelastic stress analysis results and the present theory.