ROOF BOLTING AND PROCESS OF ITS ERECTION Russian patent published in 2001 - IPC

FIELD: mining industry. SUBSTANCE: invention refers to lining of rock workings by roof bolting, it can be used while erecting roof bolting in upward rock holes. Process of erection of roof bolting includes drilling of rock hole, insertion of load-carrying rod with supporting head and supporting member into it, filling of rock hole space between supporting head and supporting member with loose material and tension of load-carrying rod. Above-mentioned space is filled under gravity with loose material from ampoule with elastic jacket placed in rock hole above supporting head after its bottom is broken by advance of load-carrying rod and communication of ampoule with above-mentioned space in rock hole. Loose material can be fed after destruction of ampoule with stop of load-carrying rod or with advance of the latter as far as it goes. Roof bolting has load-carrying rod with supporting head and supporting member, vessel with loose material placed above supporting head and loading unit. Supporting head has at least one by-pass conduit and vessel comes in the form of ampoule with elastic jacket. Perforating branch pipe can be installed above by-pass conduit. EFFECT: reduced labor input, enhanced functional reliability of roof bolting. 11 cl, 6 dwg