Abstract:

To reduce the mining cost and ensure the security of open pit slope, decrease the transportation distance in ore, increase production efficiency, etc., it was tried to improve the blasting effect through the analysis of some problems such as security, cost, and transporting distance in the process of mining. It aims to explore some new ways to reevaluate the relationship between stripping time and space based on the premise of normal productivity. The analysis tries to divide the mining spots into two types according to different mining methods, changing the current transverse propelling to vertical propelling. The implementation of the devise can further realize the optimization of mining, escalating its efficiency. It can also help solve the problem in transverse propelling with mixed mining ore-bearing rocks. While improving the blasting effect, the scheme could reduce ore loss and dilution, exposing large-area ore body and increasing the secondary ore ownership.

Key words: stripping mining and blasting, slope, production cost, work line, transport distance, stripping progress, secondary ore