Destressing blasting has a broad prospect in roadwaymaintenance in soft rock.
爆破卸压方法对维护煤矿软岩巷道具有广阔的应用前景。
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In 3225a mine roadway as an example, summed up the roadway deformation law, proposed an inter-mining floor roadwaymaintenance methods, inspected the maintenance effect to a certain extent learn.
The deep roadway deformation problem is becoming increasingly serious, much maintenance increases support costs and security is difficult to guarantee.