Tunnel large-deformation construction supporting method

Tunnel large-deformation construction supporting method

The invention discloses a tunnel large-deformation construction supporting method. The specific operation is as follows. In the design stage, the tunnel section is optimized to be circular, the section is expanded, sufficient deformation is reserved, and surrounding rock stability is facilitated; wh...

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Hauptverfasser: XIE PING, YU WEI, YANG QI, YAN FEIYUE, QIAO YI
Format: Patent
Sprache:chi ; eng
Schlagworte:
EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
SHAFTS
TUNNELS
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creator XIE PING
YU WEI
YANG QI
YAN FEIYUE
QIAO YI
description The invention discloses a tunnel large-deformation construction supporting method. The specific operation is as follows. In the design stage, the tunnel section is optimized to be circular, the section is expanded, sufficient deformation is reserved, and surrounding rock stability is facilitated; when a drilling and blasting method is adopted for construction, advanced glass fiber anchor rods are applied to the periphery of a tunnel and a tunnel face, the strength and rigidity of core soil in front of the tunnel face are improved, after surrounding rock in front of the tunnel face is reinforced, a large machine is adopted for full-section tunnel excavation, a reinforcing mesh and a steel arch are omitted, early-strength low-resilience high-performance steel fiber concrete is sprayed, and a ring is formed in a closed mode. The overall stability of the tunnel is facilitated; deformation grooves are reserved in the circumferential direction, high-deformation concrete is sprayed, surrounding rock stress is releas
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subjects EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
SHAFTS
TUNNELS
title Tunnel large-deformation construction supporting method
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