Application of the deep-hole springing blasting in Wulongquan Limestone Mine;

The deep-hole springing blasting combined with the technique of shallow-hole and pot blasting was successfully applied to the engineering of filling the sea in industry area of Zhuhai city.

By the technique of pot blasting in deep hole carried out successfully in groundleveled blasting in Longjiashan developing yard, it was expounded that the proper blasting technique could bring good economic and social benefit in blasting engineering in the center of the city and densely-populated areas.

Combining experiences of mining earth and stone,author presents causes of producing fly rock in large hole coyote blast and its control measures.

Application of springing blasting method in Huolinhe Open-pit Mine;

Taking the west area in Wulongquan Limestone Mine of WISCO as an example,the reason is analyzed and large diameter deep-hole springing blasting is suggested.

On the basis of practice, the application of springing blasting method is described in detail.

The key part to spring blasting is to make sure charge weight accurately.

An example of the application of deep-hole springing blasting technology in cutting excavation of Zhonghe to Haishiwan highway is introduced in this paper.