| 摘要 |
An ice hockey arena having an ice rink surrounded by tiers of spectator seats, wherein said ice rink has a playing surface above a first concrete base having a first width and a first length, a first series of cooling pipes within said first base and an insulation layer between said first base and the ground, the improvement comprising a second concrete base having a second width and a second length above said first base wherein said second width is greater than said first width; and a second series of cooling pipes within said second base. The method allows for the enlargement of a standard NHL ice playing surface to International Ice Hockey Federation width playing surface in a cost-effective manner while maintaining acceptable spectator sight lines.
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