Steel die of a concrete lining pipe piece with double round tunnels

• Main Authors: FENG YUBIN, FANG HAIZHEN, WANG PEIMING, YU ZUYI, DING BAOGUO, GONG HAIYUN
• Format: Patent
• Language: Chinese; English
• Published: 16.12.2009
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SHAFTS; TUNNELS

The invention discloses a steel die of a concrete lining pipe piece, which is provided with an inner cavity comprising a base, two side plates, two end plates, a cover plate, two lining pads; wherein the base is positioned at the bottom part of the steel die and is provided with an arc-surface plate; the two side plates are respectively positioned at the front side and the rear side of the steel die; the two end plates are respectively positioned at the left side and the right side of the steel die; the cover plate is positioned at the upper side of the steel die; the two lining pads are respectively and detachably fastened at the inner surfaces of the side plates, therefore, the lining pads are used for replacing the side plates and form into six surfaces of the inner cavity of the steel die with the arc-surface plate, the end plates and the cover plate of the base. The steel die can change the width of the inner cavity of the steel die by exchanging the lining pads with different thicknesses, so as to cast