FIELD: equipment for underground excavation. SUBSTANCE: plough has body with excavating tools and movable over guide and supported from both ends by means of base onto skid connected with plough body for separation and replacement. Skid is fitted from below to flat base of plough body and self-held with the aid of opened from atop inlet spline restricted in longitudinal and transverse directions with walls, and designed for catching of respective base of plough body. EFFECT: higher efficiency. 9 cl, 5 dwg
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