AE distribution near the outer part of collinear crack is similar with that of the end of penetrate crack, and inner part of collinear cracks will run-through with high loads.

• 含共线构造的岩石，裂纹外端的声发射分布与单裂纹构造中裂纹端部的声发射分布相似，裂纹内端声发射有密集分布，在应力达到一定水平时，内端部发生错断，而不是贯通。