Many different types of extensional and compressive detachment faults are developed in the Tongziyan Coal bearing Formation of Lower Permian throughout the Longyan Yongding mine areas, Fujian Province, which are developed as transformed, superimposed and composite structures, constituting the typical superimposed thrust detachment structural model in China.

By analysing the characteristics of the single-section blasting vibration, this paper analyzes the relationship of the vibration superposition and influential factors, and indicates the attenuation of blasting seismic wave propagation in rock mass is the main reason which vibration superposition in middle and far field is generated.

Especially in large scale millisecond blasting,the superposition of blasting vibration can not be ignored.