Roadway supporting device

The invention provides a roadway supporting device which comprises a plurality of supporting frames, any supporting frame comprises a U-shaped top beam, a U-shaped bottom beam and a pair of vertical beams, the U-shaped top beam is fixed to a roadway top plate, a bottom cutting transverse cutter is fixed to the bottom end of the U-shaped bottom beam, the bottom cutting transverse cutter is fixed to a roadway bottom plate, and the vertical beams are fixed to the two ends of the U-shaped top beam and the two ends of the U-shaped bottom beam respectively; at least two arc-shaped top beams are connected between every two adjacent U-shaped top beams, and at least two bottom cutting vertical cutters are connected between every two adjacent U-shaped bottom beams. According to the roadway supporting device, active supporting and isobaric supporting are integrated, the supporting safety is improved, and repeated maintenance is avoided. 本发明提出一种巷道支护装置，包括：多个支护框架，任一个支护框架包括U型顶梁、U型底梁和一对竖梁，U型顶梁固定在巷道顶板，U型底梁的底端固定切底横刀，切底横刀固定在巷道底