Parameters selection method of rock mechanics for Longqiao iron mine

To obtain satisfactory mechanical parameters of rock mass, the commonly used methods of rock mechanics parameters were compared. The study results show that differences between the different treatment methods results obtained are also larger. With the actual situation, mechanical parameters of Longqiao iron mine were selected combined by E. Hoek, elastic wave method, experience, and coefficient reduction method. The parameters of the reduction methods take the average of the results. The average modulus of elasticity of rocks were by 1/3 values of mechanical parameters. The reasonable recommended values of Longqiao iron mine were proposed.