| 摘要 |
PURPOSE: A stabilizing ring fixture of a manhole is provided to fix a stabilizing ring simply by fixing a fixture to the inside of a manhole body firmly and to keep fixative force without separation by external impact. CONSTITUTION: In a manhole structure containing a manhole body formed on a concrete block and a stabilizing ring(12) coupled on the top of the manhole body and provided with many projections(120) having long holes(121), the stabilizing ring fixture of a manhole comprises: a pair of fixtures(21,21A) attached to the lower side of the stabilizing ring(12), provided with many fixing bolts(210) corresponding to the long holes(121) of the stabilizing ring(12), adhered closely to the inner circumference of the manhole body, and provided with many perforation holes(220) formed on the inner circumference at regular intervals; and a bolt(22) interposed to the perforation hole(220) and fastened to a spiral hole formed on the inner circumference of the manhole body.
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