Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Buried Utilities for Alaska: Dewater or Winter Work?
This paper describes a construction project in Fairbanks, Alaska where new sewer lines and a lift station are to be installed below the water table. Typically, a contractor would dewater the site, excavate, and install the underground facilities, then backfill and compact. However, the discovery of contamination near the project site required a restrictive dewatering permit by the Alaska Department of Environmental Conservation (ADEC). The first attempt to dewater the site was unsuccessful due to abundant summer rain producing a rapid increase in water table levels. A second ADEC permit stipulated that the dewatering discharge be regularly monitored for contamination levels. The paper describes the quality control plan developed for this purpose. It includes hourly effluent sampling, GC testing and water table depth measurements. By the time the contractor excavated and installed a new sewer line, the effluent contamination level rose above acceptable limits and dewatering was terminated. The rest of the project was completed during winter.
Buried Utilities for Alaska: Dewater or Winter Work?
This paper describes a construction project in Fairbanks, Alaska where new sewer lines and a lift station are to be installed below the water table. Typically, a contractor would dewater the site, excavate, and install the underground facilities, then backfill and compact. However, the discovery of contamination near the project site required a restrictive dewatering permit by the Alaska Department of Environmental Conservation (ADEC). The first attempt to dewater the site was unsuccessful due to abundant summer rain producing a rapid increase in water table levels. A second ADEC permit stipulated that the dewatering discharge be regularly monitored for contamination levels. The paper describes the quality control plan developed for this purpose. It includes hourly effluent sampling, GC testing and water table depth measurements. By the time the contractor excavated and installed a new sewer line, the effluent contamination level rose above acceptable limits and dewatering was terminated. The rest of the project was completed during winter.
Buried Utilities for Alaska: Dewater or Winter Work?
Hulsey, J. L. (Autor:in) / Raad, Nada (Autor:in) / Saboundjian, Steve (Autor:in) / Brand, Randy (Autor:in)
11th International Conference on Cold Regions Engineering ; 2002 ; Anchorage, Alaska, United States
Cold Regions Engineering ; 1035-1046
08.05.2002
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Buried Utilities for Alaska: Dewater or Winter Work?
| British Library Conference Proceedings | 2002
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Wellpoints dewater below sea level
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