On the basis of the expierence, a hydraulic blasting used in demolishing a close water pool with complex internal structure, some parameters such as charge quantity,charge arrangement pattern and millisecond delay are discussed in this paper.

Experimental research on notching wet beach of Yellow River by short-delay blasting;

Speeding up of concrete foundation demolition in plant building using technique of short-delay blasting;

Connecting with the actual situation of the blasting of highway eng in eering, this paper discusses on the significance of using short-delay blasting and its technical feasibility, and points out that the short-delay blasting can increase the charging quantity and working efficiency, and also can lower the i nfluence of blasting impact on the environment.

Discussion on rational millisecond time for sectional blasting of full depth of mine underground coal bunker;

The application of multisection elementary error bias explosion in terrace 1461 of bauxite mine;