Experimental study of dynamic mechanical properties of rock under static and dynamic combination load

摘要

To study rock dynamic mechanical properties by different impact loads and different rock loads , It study rock stress-strain characteristics and rock destruction characteristics and rock strength characteristics under static and dynamic combination load .The experiment result showed that the rock under static and dynamic combination load is easy to break. From the rock break characteristics ,it try to find mechanism of rock breaking and crushing rule .It is basis on theoretical of boring machine structure inversion design.