LOOSENING OF CONTACT BETWEEN ORE BODY AND HARDENING FILLING MASS

摘要

FIELD: mining.SUBSTANCE: claimed process comprises placing of activating substance on course ore side surface and feeding of hardening filling mass. Encapsulated activating substance containing anhydrite is place at well mouth and bottom. Then it is subjected to blast effects to get a thin film on ore body surface. Amount of encapsulated anhydrite makes at least 500 g. Capsule diameter should make comply with the following condition: D=(0.85-0.95)d, where D is capsule diameter while d is well diameter.EFFECT: lower ore dilution and higher yield of useful component.3 cl