Shaft head with compensating rings made of carbon concrete without mortar, whereby the manhole cover remains under the asphalt ceiling and at any time the manhole cover is freely accessible

摘要

Construction of a shaft head with displacement-safe compensation rings (24) without mortar, and a manhole cover (19) which remains at freely accessible manhole cover (17) under the asphalt cover layer (10). characterized in that by the new material carbon concrete compensating rings (24) of lesser height than previously can be realized, whereby the target height is achieved without mortar by mere stacking to a few millimeters and final fine adjustments of the manhole cover (19) the roadway height under the asphalt cover layer (10) take place. By separating the asphalt surface layer of manhole cover (17) and carriageway (10), the manhole cover (17) remains accessible at all times.