Abstract：Different from normal concrete，steel fiber reinforced concrete(SFRC) shows great capacity of dissipating energy in its cracking stage because of the pull out effect of steel fibers. It is of great importance for the design of SFRC structures to study intensively on this energy dissipating property of the material. So the failure of structures with SFRC components will be accompanied by energy exchanges between external environment and SFRC components. However，the total energy of the system should remain constant. To obtain the basic data of steel fiber reinforced shot-concrete(SFRSC) energy properties，a great number of experiments on SFRC specimens are carried out. An analysis based on statistical theory is done to get the energy criterion for SFRSC associated with credibility levels. The data provided by these tests act the fundamental database for further study. With rational supposition，the energy dissipating mechanism in SFRSC cracks is studied intensively. And the relation between the amount of energy dissipated in cracking and the form of cracks is proposed so that the energy data obtained in the standard tests could be used in structure design of linings. Finally，the energy dissipation capacity of the shot-concrete lining is calculated and compared with the tunneling-induced energy release of the surrounding rock obtained through finite element analysis.
