Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Renewal of Rectangular Culverts Using the RPC Method
The total length of sewers in Tokyo's 23 wards has reached about 15,000 km, of which 2000 km (about 13%) is older than 50 years, which is the designed lifespan of culverts. Many of the aging sewer culverts are located in Tokyo's urban center, which increasingly suffers inundation, road subsidence and odious smells attributable to insufficient capacity or aging of storm sewer culverts. As the amount of sewage increases because of people's changing lifestyles and the amount of stormwater increases under the influence of urbanization, there is an urgent need to renew sewer systems to increase sewer capacity and enhance the earthquake resistance of sewer systems. Today, it is difficult to replace sewers by the open-cut method because of adverse effects on road traffic, underground installations and the living environments of local residents. Non-open-cut methods are being used, therefore, to renew sewers. Renewal methods include the reversed piping method, the formed piping method, the sleeve piping method and the spiral piping method. The RPC (Renewal Precast/Parallel Culvert) method is a non-open-cut sleeve piping method by which existing rectangular culverts of medium- and large-cross sections can be lined efficiently with self-supporting culverts.
Renewal of Rectangular Culverts Using the RPC Method
The total length of sewers in Tokyo's 23 wards has reached about 15,000 km, of which 2000 km (about 13%) is older than 50 years, which is the designed lifespan of culverts. Many of the aging sewer culverts are located in Tokyo's urban center, which increasingly suffers inundation, road subsidence and odious smells attributable to insufficient capacity or aging of storm sewer culverts. As the amount of sewage increases because of people's changing lifestyles and the amount of stormwater increases under the influence of urbanization, there is an urgent need to renew sewer systems to increase sewer capacity and enhance the earthquake resistance of sewer systems. Today, it is difficult to replace sewers by the open-cut method because of adverse effects on road traffic, underground installations and the living environments of local residents. Non-open-cut methods are being used, therefore, to renew sewers. Renewal methods include the reversed piping method, the formed piping method, the sleeve piping method and the spiral piping method. The RPC (Renewal Precast/Parallel Culvert) method is a non-open-cut sleeve piping method by which existing rectangular culverts of medium- and large-cross sections can be lined efficiently with self-supporting culverts.
Renewal of Rectangular Culverts Using the RPC Method
Fukumuro, Junya (Autor:in) / Sugimoto, Ikuo (Autor:in) / Karasawa, Hideaki (Autor:in)
Ninth International Conference on Urban Drainage (9ICUD) ; 2002 ; Lloyd Center Doubletree Hotel, Portland, Oregon, United States
05.09.2002
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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