PROCESS OF CONTROL OVER ROOFS ACROSS INTERLINKINGS OF FACES WITH DEVELOPMENT WORKINGS Russian patent published in 2000 - IPC

FIELD: mining industry, underground development of stratified deposits. SUBSTANCE: process consists in keeping of roof across interlinkings of faces with development workings by means of powered supports composed of double sections which are unloaded, moved in direction of advance of face and erected in working positions. Pneumatic balloons are laid on ceilings of sections of support after their unloading and are inflated with compressed air till they thrust outwards between ceilings of sections of support and roof of working when sections of powered interlinking support are set in working positions. Pneumatic balloons are placed between cappings of support of working while strata with unstable rocks of roof are developed and working is supported with frame support. EFFECT: enhanced efficiency of control over roofs across interlinkings of faces with sectional development workings. 1 cl, 3 dwg