Advanced support structure for tunnel section excavation

Advanced support structure for tunnel section excavation

The utility model discloses a tunnel section excavation advance support structure, which comprises an outer sheath, the outer sheath is U-shaped, the inner wall of the outer sheath is attached to the inner wall of the tunnel section for support, the outer wall of the rear end of the outer sheath is...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MENG HUANHUAN, HOU QIQI, CHE HAITONG, AN JIGUANG, CUI YUANGANG, TIAN XIANWEI, SHE HONGXIAO
Format: Patent
Sprache:chi ; eng
Schlagworte:
EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
SHAFTS
TUNNELS
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Beschreibung
Zusammenfassung:The utility model discloses a tunnel section excavation advance support structure, which comprises an outer sheath, the outer sheath is U-shaped, the inner wall of the outer sheath is attached to the inner wall of the tunnel section for support, the outer wall of the rear end of the outer sheath is provided with a coating groove, the inner wall of the front end of the outer sheath is provided with a lap joint skirt, and the lap joint skirt is provided with a lap joint groove. The outer sheath is provided with a wrapping groove and a lapping skirt, the lapping skirt is arranged on the outer wall of the outer sheath, the two adjacent outer sheaths are connected in an inserted manner through the matching of the lapping skirt and the wrapping groove when the two adjacent outer sheaths are butted, and the outer wall of the outer sheath is fixedly connected with the inner wall of the section of the tunnel through a static pressure pin. According to the invention, the outer sheath is provided with the through hole I