Evaluation of Maintenance Strategies Based on Leakage Risk Assessment on Side Impervious Walls at Coastal Landfill Sites
| Autor: | Misato Sekitani, Kwang-Seok Chae, Shinya Inazumi, Kenichi Shishido |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
business.industry 0211 other engineering and technologies Environmental engineering Maintenance strategy 02 engineering and technology 010501 environmental sciences Repair method 01 natural sciences Risk evaluation 021105 building & construction Impervious surface Asset management Leakage (economics) business Risk assessment health care economics and organizations 0105 earth and related environmental sciences |
| Zdroj: | Materials Sciences and Applications. :448-475 |
| ISSN: | 2153-1188 2153-117X |
| DOI: | 10.4236/msa.2017.86031 |
| Popis: | Asset management is a strategic decision-making aspect of social infra-structure that ensures safety by predicting long-term conditions and maximizing effectiveness under budgetary constraints. Predicting the deterioration of impervious walls is essential in the asset management of coastal landfill sites, particularly in the design of their maintenance and repair strategy. In this paper, a quantitative evaluation of the leakage of toxic substances in coastal landfill sites where deterioration of side impervious walls has decreased the water interception performance is reported. In addition, risk evaluation based on the asset management of the leakage is applied to determine an appropriate repair method. The strategy of repairing the walls when the concentration of the toxic substances leaking into the sea area exceeds the closure and abandonment of coastal landfill sites is demonstrated to be superior. Moreover, the strategy of repairing only the seaside side impervious wall is shown to be cost-effective. |
| Databáze: | OpenAIRE |
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