Tunnel advances hole structure

• Main Authors: SUN NAN, ZHANG TAO, CHEN HAIKUN, JU HAO, QIN XIAOLIANG, YU LINGGUANG, LI ZHIWEI, LI GANG, ZHANG YICHI, PENG JILE
• Format: Patent
• Language: Chinese; English
• Published: 30.01.2018
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SHAFTS; TUNNELS

The utility model provides a tunnel advances hole structure, including the side slope, be equipped with the entrance to a cave in the side slope, hug closely and be equipped with the barricade outsidethe entrance to a cave to be equipped with the open cut tunnel section before the entrance to a cave, the entrance to a cave forms holistic retaining structure with the open cut tunnel section, be equipped with the tunnel in the open cut tunnel section, the open cut tunnel section is passed the barricade and is directed reach the side slope, be equipped with packway between barricade and the sideslope. The utility model discloses a side slope sets up the barricade at the entrance to a cave to construct one section open cut tunnel before entering the hole, form holistic retaining structure, satisfy the tunnel and advance hole construction security needs, reduced the construction degree of difficulty, reduced native stone excavation, shortened construction period. 本实用新型提供了种隧道进洞结构，包括边坡，所述边坡内设有洞口，紧贴洞口外设有挡墙，并在洞口前设有明洞段