Author(s)

Li Ang, Wang Zhen

Corresponding Author

Li Ang

ABSTRACT

Because of geological conditions and complexity and transientity of blasting process in open pit mines, at present, there is no unified conclusion on the prediction method of blasting block distribution in open pit mines. In order to explore the prediction method of blasting block degree in open pit mine, this paper introduces the common methods of blasting block, and evaluate the accuracy of the prediction results of the three methods by on-site screening results, then determine the block accuracy prediction method with the highest accuracy. The results show that the Harries model, distribution function prediction model and image analysis prediction model introduced in this paper all have certain accuracy, among them, image analysis prediction model has the highest accuracy, and the method should be widely promoted in engineering practice.

KEYWORDS

Blasting block distribution, Prediction method, Image analysis, Accuracy evaluation