| 摘要 |
A system and method are provided for coupling a manhole cover (30) to an underground utility box to support the manhole cover (30) substantially flush with a ground surface such as a roadway. A holder (100) couples to an underground utility box and includes upper (104) and lower ends (108) and a channel (112) extending therebetween, and a support structure (116) extending into the channel and defining an upwardly facing support surface (120). An adjustment member (200) for coupling to a manhole cover (30) is inserted within the channel (112), and includes upper (204) and lower (208) ends, and a passageway (212) extending therebetween and communicating with the channel (112). The adjustment member (200) is movably receivable within the channel to be seated on the support surface, and to define an adjustment space between the adjustment member (200) and the holder (100). The adjustment member (200) may thus be adjusted for accommodating a slope and elevation of a ground surface, and scaled with the holder (100) after adjustment. |
