Influence of the Number of Parallel-Joints on Size Effect of Elastic Modulus and Characteristic Elastic Modulus

The number of joints existing in the rock affects elastic modulus rock, and relationship has not been obtained. In this paper, 10 numerical models are established by simulations to study effect parallel on size modulus. research shows that there is a power function between joints, negative exponential size, their special mathematical given. paper also obtains form relationships characteristic modulus, joints.