FIELD: mining. SUBSTANCE: junction support includes props installed in rows, cappings, connection units. Cappings are of two types, each of which is presented in form of flexible member. Rigidly attached to both ends of one of said types of cappings are ears, and rigidly attached to both ends of other said type of cappings are hooks. Cappings are interconnected to form net in whose longitudinal rows, cappings provided with hooks one ends of flexible members are laid. Props are installed in joint units of net. Flexible member of cappings of both types may be insulated with chemical fiber, for instance, glass-reinforced plastic over entire length of cappings except for area of definite length in the middle of them. EFFECT: reduced weight of support and increased its reliability. 2 cl, 6 dwg
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Authors
Dates
2000-09-10—Published
1997-06-17—Filed