Study on the long-hole raising technique using one blast based on vertical crater retreat multiple deck shots

Study on the long-hole raising technique using one blast based on vertical crater retreat multiple deck shots

Backfilling inaccessible cavity through raise can provide underground support for the active open-pit operations and the raise must be taken down in a single blast for safety reasons. Conventional raising techniques are not economically and technically feasible, and the maximum advance depth in one...

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Bibliographic Details
Main Authors: Liu, K., Yang, J., Li, X., Hao, Hong, Li, Q., Liu, Z., Wang, C.
Format: Journal Article
Published: Pergamon 2018
Online Access:http://hdl.handle.net/20.500.11937/69945

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