Requirements for unreinforced and reinforced concrete manholes and soakaways.
This British Standard, a part of the BS 5911 series, specifies complementary requirements to those in BS EN 1917 for unreinforced and reinforced concrete manholes of circular and rectangular cross-section (with or without chamfered or rounded corners), as provided for in that European Standard, i.e. units with nominal sizes or nominal lengths not exceeding DN 1250 or LN 1250, respectively. Full requirements for unreinforced and reinforced concrete manholes with nominal sizes greater than DN 1250, but not exceeding DN 3000, are also specified. The manholes are intended to be installed in carriageways of roads (including pedestrian streets), hard shoulders and parking areas for all types of road vehicles, though provision is also made for units subject to lighter traffic loading. Requirements for soakaways, landing slabs and corbel slabs are also specified.
Steel fibre concrete manholes are not manufactured in the United Kingdom and so have been excluded from this part of BS 5911.
This British Standard supersedes BS 5911-200:1994.
This standard includes the following cross references:
BS 146, BS 3123, BS 3892-1, BS 4027, BS 4035, BS 4449, BS 4482, BS 4483, BS 4484-1, BS 6699, BS EN 197-1, BS EN 934-2, BS EN 1008, BS EN 1917:2002, BS EN 12620, and BS EN 13101.