Method for repairing in-ground tunnel structures

Details Method for repairing in-ground tunnel structures Method for repairing in-ground tunnel structures

2005-10-18

2005-10-18

Lee, Jong-Suk (James) (Department: 3673)

Hydraulic and earth engineering

Underground passageway, e.g., tunnel

Lining

C405S146000, C405S150200, C405S270000, C264S032000

Reexamination Certificate

active

06955502

ABSTRACT:
A method for repairing in-ground tunnel structure involves applying a first curable resin over a cementitious liner which lines the interior wall surfaces of the tunnel, drilling drainage holes in the cementitious liner, and filling the drainage holes with a second curable resin. The resins are allowed to cure and harden. The cured resins seal the wall surfaces and drainage holes to provide a composite tunnel structure having high mechanical strength and resistance to fluid leaks.

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