TY - PAT TI - Mining face equipment AB - Mining face equipment includes drilling advance wells, drilling using explosives on the contour bore holes, loading and transporting the crushed mass, drilling reinforcement shafts, injecting reinforcement compounds and moving the timber. Camouflet explosives are used to form relaxed rock stress beyond the mining area to decrease costs of reinforcing the mining area by using nonstressed rock in the advance well as support. The strengthening solution is injected through advanced cementing wells before drilling the contour bores as well as through radial cementing wells beyond the timbers following loading and transport of the mining debris. The advance well is 50-80 m. AU - "G, Litvinskiy G" AU - "Babyuk, G V" AU - "Yakovenko, V A" KW - "42 ENGINEERING" KW - "MINING EQUIPMENT" KW - "UNDERGROUND MINING" KW - "BOREHOLES" KW - "CEMENTS" KW - "EXPLOSIVES" KW - "ROCK DRILLING" KW - "STRESS RELAXATION" KW - "SUPPORTS" KW - "WELL DRILLING" KW - "BUILDING MATERIALS" KW - "CAVITIES" KW - "DRILLING" KW - "EQUIPMENT" KW - "MATERIALS" KW - "MECHANICAL STRUCTURES" KW - "MINING" KW - "RELAXATION" KW - "420206* - Engineering- Mining & Drilling Equipment & Facilities- (1980-1989)" DO - https://doi.org/ UR - PB - CY - USSR PY - 1981 DA - 1981-01-07 LA - Russian J2 - [] VL - C1 - C2 - C3 - SU 2736642 C4 - C5 - Plenum Publishing Corp., New York, NY. L3 - Patent File Date: Filed date 12 Mar 1979; Other Information: PAT-APPL-794222 ER -