Method of mining by slot draw with forced fill body and extrusion blasting

By using the forced filling body compression blasting trenching mining method, and utilizing mechanized rock drilling rigs and micro-differential blasting technology, the problems of low efficiency and high cost of existing construction cutting raises and blasting wells have been solved, enabling rapid upgrading of the ore preparation room and improvement of safety.

CN116006176BActive Publication Date: 2026-06-12CHINA HUAYE GROUP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA HUAYE GROUP
Filing Date
2022-12-19
Publication Date
2026-06-12

AI Technical Summary

⚠Technical Problem

Existing methods of constructing wells by cutting and blasting have problems such as complicated construction processes, long cycles, low efficiency, and high costs.

⚗Method used

The mining method of squeezing and blasting backfill is adopted. Mechanized rock drilling rigs are used to excavate and cut tunnels, vertical medium-deep holes are arranged and micro-differential blasting is carried out. Taking advantage of the low density and low strength of the backfill, multiple rows of blasting are carried out from the inside out, providing ample free space.

🎯Benefits of technology

It enables rapid upgrading of ore preparation sites, reduces costs, improves safety, provides sufficient blasting compensation space, and reduces construction time and resource consumption.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application provides a method for mining by strong pushing filling body extrusion blasting slotting, comprising the following steps: adopting a mechanized rock drilling jumbo to carry out excavation construction, cutting a roadway to a filling body to form a cut roadway from a self-drilling hole entrance to the filling body; arranging a vertical medium-depth hole construction slotting row in the filling body and the cut roadway; wherein the vertical medium-depth hole construction slotting row comprises a row of blasting holes perpendicular to the filling body and the cut roadway; filling explosives into the blasting holes; and performing one-time millisecond blasting slotting on the blasting holes, and the blasting sequence is performed from inside to outside in sequence. The application does not need to construct a cutting raise, only needs to find out the boundary of the filling body, arranges reinforced blast holes, and performs blasting on the blast hole row in the filling body and the blast hole row in the ore body together, so that the cost is greatly reduced, the safety is higher, and the mining room can be quickly upgraded.
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