Fig. 22

Time history curves of maximum circumferential stresses on the ends of the sinking casings during construction. (a) Time history curves of maximum circumferential stresses at the ends of the casings with a length of 11Â m under different wall thicknesses; (b) Time history curves of maximum circumferential stresses at the ends of the casings with a length of 15Â m under different wall thicknesses; (c) Time history curves of maximum circumferential stresses at the ends of the casings with a length of 19Â m under different wall thicknesses.