Ventilation – Mine – With partition means
Patent
1997-04-16
1999-08-10
Joyce, Harold
Ventilation
Mine
With partition means
523130, E21F 114
Patent
active
059349905
ABSTRACT:
A mine tunnel ventilation control device and method for constructing same quickly with an easily transportable matrix material to provide a rigid flame retardant barrier wall. The air flow stopping includes a peripheral frame extending about and across a tunnel opening to which is secured a matrix material, preferably in the form of a composite including a sheet of very strong grid material, such as a biaxially oriented integral geogrid or the like, bonded to a sheet of a textile material, such as a non-woven, needle punched, geofabric or the like which spans the apertures of the geogrid. At least one side of the matrix material, and preferably both sides, are covered with a sealant composition to prevent passage of air through the mine stopping and to develop structural rigidity.
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Holstein, Jr. C. Dempsey
Shean Timothy J.
Steffenino John E.
Zelanko Joseph C.
Joyce Harold
Sandvik Rock Tools, Inc.
The Tensar Corporation
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