Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Canal-Lining Demonstration Project 2000 Supplemental Report
The Deschutes Canal-Lining Demonstration Project is a cooperative effort among the Bureau of Reclamation, several irrigation districts, and several geosynthetic lining manufacturers. The purpose of the study is to develop low-cost canal-lining technologies to reduce seepage over severe rocky subgrade conditions. Over the first 7 years, Reclamation constructed 27 alternative canal-lining test sections using combinations of geosynthetics, shotcrete, roller compacted concrete (RCC), grout mattresses, soil, elastomeric coating, and sprayed-in-place foam. This report documents the construction of two additional test sections using an exposed 45-mil EPDM rubber geomembrane and an exposed 30-mil Linear Low Density Polyethylene (LLDPE) geomembrane. Unit construction costs range from $0.78 to $0.87 per square foot. The test sections will be monitored for maintenance requirements, durability, and effectiveness to calculate Benefit-Cost ratios. This report also documents seepage studies performed on a RCC-Shotcrete test section. The seepage studies include both full-scale short-term ponding tests and long-term inflow-outflow measurements taken over a 3-year period. The two methods yield similar results, and show that the RCC-Shotcrete lining is 75 to 85 percent effective which agrees well with previous estimates.
Canal-Lining Demonstration Project 2000 Supplemental Report
The Deschutes Canal-Lining Demonstration Project is a cooperative effort among the Bureau of Reclamation, several irrigation districts, and several geosynthetic lining manufacturers. The purpose of the study is to develop low-cost canal-lining technologies to reduce seepage over severe rocky subgrade conditions. Over the first 7 years, Reclamation constructed 27 alternative canal-lining test sections using combinations of geosynthetics, shotcrete, roller compacted concrete (RCC), grout mattresses, soil, elastomeric coating, and sprayed-in-place foam. This report documents the construction of two additional test sections using an exposed 45-mil EPDM rubber geomembrane and an exposed 30-mil Linear Low Density Polyethylene (LLDPE) geomembrane. Unit construction costs range from $0.78 to $0.87 per square foot. The test sections will be monitored for maintenance requirements, durability, and effectiveness to calculate Benefit-Cost ratios. This report also documents seepage studies performed on a RCC-Shotcrete test section. The seepage studies include both full-scale short-term ponding tests and long-term inflow-outflow measurements taken over a 3-year period. The two methods yield similar results, and show that the RCC-Shotcrete lining is 75 to 85 percent effective which agrees well with previous estimates.
Canal-Lining Demonstration Project 2000 Supplemental Report
J. Swihart (Autor:in) / J. Haynes (Autor:in)
2000
70 pages
Report
Keine Angabe
Englisch
Civil Engineering , Construction Equipment, Materials, & Supplies , Natural Resource Management , Hydrology & Limnology , Canal linings , Water conservation , Durability , Geotechnical materials , Soils , Grouts , Ponding , Life cycle costs , Geotextiles , Benefit cost analysis , Deschuter River , Geocomposite , Geomembrane , Geosynthetic materials
Canal-Lining Demonstration Project Year 10 Final Report
| NTIS | 2002
Deschutes Canal Lining Demonstration - Construction Report
| British Library Conference Proceedings | 1994
Canal Lining Demonstration Project for Upper Deschutes River Basin
| British Library Conference Proceedings | 1992