1. The fracture of rock around underground openings;Hiramatsu;Memoirs of the Faculty of Engineering, Kyoto Univ.,1959
2. The relation between the stress around underground levels and the state of initial stresses in the ground;Hiramatsu;J. Min. Metall. Inst. Japan,1959
3. Investigation on the caving of mined stopes by barodynamic experiments;Hiramatsu;J. Min. Metall. Inst. Japan,1960
4. Stress around a shaft or level excavated in ground with a three-dimensional stress state;Hiramatsu;Memoirs of the Faculty of Engineering, Kyoto Univ.,1962
5. Analysis of stresses around a circular shaft or a drift excavated in a three-dimensional stress state;Hiramatsu;J. Min. Metall. Inst. Japan,1962