manhole

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Related to Man hole: inspection chamber, Maintenance hole

manhole

1. a shaft with a removable cover that leads down to a sewer or drain
2. a hole, usually with a detachable cover, through which a man can enter a boiler, tank, etc.

Manhole

 

a structure in a sewer network used for inspecting, cleaning, and flushing the sewers.

The manhole usually consists of a work area and, above it, an entrance area, a hatchway, and a lid. There are inspection manholes, drop shafts, and flushing shafts. Among the inspection manholes there are line shafts, built at straight sections of the sewer network; corner shafts, where the line changes direction; juncture shafts, where several lines come together; and control shafts, where the networks draining individual buildings or city blocks join the street network. Drop shafts are built where there is a substantial difference between the levels of the delivery pipes and drain pipes. Flushing shafts are used in flushing out the sediments that form in pipes carrying effluents with a slow rate of flow.

In cross section, manholes are either round or rectangular. They are built predominantly from prefabricated reinforced-concrete rings and panels. Sometimes they are brick.

IU. M. LASKOV

manhole

[′man‚hōl]
(engineering)
An opening to provide access to a tank or boiler, to underground passages, or in a deck or bulkhead of a ship; usually covered with a cast iron or steel plate. Also known as access hole; manhead.

manhole

manhole
A covered opening in a street which provides access for cleaning and repairing of a sewer beneath, or for repairing a conduit for electric underground piping or electric cables.
References in periodicals archive ?
"Some man hole covers were dislodged and there has been some slight damage, involving cracks to the road surface on St Cuthbert's Road."
Under the contract, PAR's scope of work include civil package, which includes all infrastructure installation, road borings, man holes, steel risers and right of way restoration.
Firemen were called to a leaking roof at Anfield Children's Centre and at least a dozen man holes blew across Merseyside under the weight of the water.
The man holes are lying open and continue to gush out filth and excrement the whole day long but the respective department is not paying attention towards placing lids or arranging cleanliness of the nullahs.
Executive Engineers are directed to carry out these orders whereas all Superintendent Engineer and Executive Engineers are responsible for cleaning of lines and repair of man holes in their areas.
Tenders are invited for Removal of silt from existing man holes, Constructions of damaged man holes, Replacement of damaged sewer lines at rangireeju veedhi, Manthavari veedhi bukka veedhi and nehru nagar in zone-iii.
Tenders are invited for Removal of silt from existing man holes, Construction of damaged man holes, Replacement of damaged sewer lines at ramajoipeta, Jalaripeta, Gollalapalem and golla veedhi in zone-iii.
Tenders are invited for Providing external sanitary lines man holes and rain water harvesting line for boys hostel building in svvu campus tirupathi
Tenders are invited for Providing paving floor tiles and man holes from hi-tech bus stand to schade school north side on road existing storm water drain.
Tenders are invited for Raising of ugd man holes from chalapathi nagar to dayal nagar at visalakshi nagar in ward.no.06.
Tenders Are Invited For Package- A (Unit 01): Construction Of Single Flue Rcc Chimney Of Height 275M With Erection Of Structural Supporting Platforms For Liners, Insulation And Provision Of Other Accessories Including External Platforms, Structural Steel Staircase, Man Holes, Rain Water Pipes, Rcc Roof & Its Waterproofing And Other Associated Works As Per Tcc For Unit-1 Chimney At 3X800 Mw Pvunl Patratu.