Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Capacity Enhancement of Landfills on Sloping Ground Using Engineered Berms at the Toe
Abstract In the present study, a hazardous waste (HW) landfill on a sloping ground is considered. The base profile of the landfill exhibited significant elevation difference from one end to the other. Due to the inclined base and fixed waste footprint area, the waste retaining capacity of the landfill decreases significantly in comparison to a same plain base area. As a consequence, an engineered berm is provided at the lower end to act as a stabilizing berm and also to increase the waste filling space. This paper describes the study done to check the stability of the HW landfill on the sloping ground for (a) without berm; (b) with earthen toe berm; and (c) engineered berm or mechanically stabilised earth (MSE) wall for the following critical influencing parameters: (a) leachate head due to temporary clogging; (b) pore water pressures in wet waste; (c) seismic forces. Limit equilibrium methods of analysis is adopted to check the stability for all the cases. Along with the stability, waste filling capacity for each configurations are evaluated. Eventually it is observed that on a sloping ground, the waste filling capacity is highest in case of landfill with MSE walls with optimal solution for stability with significant difference in waste filling capacity from the landfill without berm and earthen berm.
Capacity Enhancement of Landfills on Sloping Ground Using Engineered Berms at the Toe
Abstract In the present study, a hazardous waste (HW) landfill on a sloping ground is considered. The base profile of the landfill exhibited significant elevation difference from one end to the other. Due to the inclined base and fixed waste footprint area, the waste retaining capacity of the landfill decreases significantly in comparison to a same plain base area. As a consequence, an engineered berm is provided at the lower end to act as a stabilizing berm and also to increase the waste filling space. This paper describes the study done to check the stability of the HW landfill on the sloping ground for (a) without berm; (b) with earthen toe berm; and (c) engineered berm or mechanically stabilised earth (MSE) wall for the following critical influencing parameters: (a) leachate head due to temporary clogging; (b) pore water pressures in wet waste; (c) seismic forces. Limit equilibrium methods of analysis is adopted to check the stability for all the cases. Along with the stability, waste filling capacity for each configurations are evaluated. Eventually it is observed that on a sloping ground, the waste filling capacity is highest in case of landfill with MSE walls with optimal solution for stability with significant difference in waste filling capacity from the landfill without berm and earthen berm.
Capacity Enhancement of Landfills on Sloping Ground Using Engineered Berms at the Toe
Mahanta, Abinash (Autor:in) / Datta, Manoj (Autor:in) / Ramana, Gunturi Venkata (Autor:in)
11.10.2018
8 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Hazardous landfills , Capacity enhancement , Sloping ground , Engineered berm , Mechanically stabilized earth wall Engineering , Geoengineering, Foundations, Hydraulics , Geotechnical Engineering & Applied Earth Sciences , Soil Science & Conservation , Sustainable Development , Waste Water Technology / Water Pollution Control / Water Management / Aquatic Pollution
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