METHOD TO RAISE ROAD MANHOLES IN CONSTRUCTION OF ROADS Russian patent published in 2012 - IPC E02D29/12 

FIELD: construction.

SUBSTANCE: method to raise a road manhole in construction of roads is implemented in accordance with the following sequence: installation of a manhole ceiling slab at an earth bed level, closure of a manhole frame with a closing sheet, fixation of coordinates of a raised manhole centre, subsequent laying of a road surface layer above a manhole without raising a frame, taking out coordinates of a raised manhole centre, application of tool borders, installation of a tool, cutting a cylindrical channel in a road surface with a facet on top of the cylindrical channel, extraction of the cut fragment of the road surface, withdrawal of the closing sheet, lifting the manhole frame with installation of the manhole body to the elevation in the level of the upper layer of the surface; filling of cavities formed in process of works production with a quick-hardening shrink-resistant filler with subsequent pressing; arrangement of an asphalt-concrete coating with subsequent compaction.

EFFECT: development of an accurate method to raise a manhole when constructing new roads, providing for a tight and evenly distributed road surface around a manhole.

7 cl, 5 dwg