碩士 / 國立中興大學 / 土木工程學系 / 93 / Sewer systems are buried underground so that the authorities have difficulties to maintain, monitor, and rehabilitate sewer systems. On the contrast, sewer systems are easy to get cracks and damages because of corrosive wastewater inside sewer and complex surrounding outside sewer. Serious cracks and leaks could result in exceeding the designed rate flow of the sewerage treatment plants due to the infiltration of rain or underground water. Also, the exfoliation of sewerage from detective pipes may cause a potential health hazard with the possible contamination of groundwater and soil. Usually the cost of sewerage rehabilitation is usually immense but under a limit budget. Thus, to set up a priority list of sewerage rehabilitation is necessary. This research is to establish an evaluation model to find out the cost-benefit ratio for each sewer sub-system. First of all, a comprehensive list of affecting factors to sewerage rehabilitation was established by an analytic hierarchy process (AHP). Then, through an expert questionnaire, the weights for all affecting factors can be estimated. By multiplying the all quantitative affecting factors and their weights, an overall score can be obtained for the cost-benefit evaluation. In result, the authorities can set up the strategy for the sewerage rehabilitation by considering both the rehabilitation priority and budget limitation. This evaluation process was applied to a sewerage system in the east Taichung city, Taiwan.
| Identifer | oai:union.ndltd.org:TW/093NCHU0015011 |
| Date | January 2005 |
| Creators | Hsiao-Ping Yeh, 葉筱萍 |
| Contributors | Tien-Kuen Huang, 黃添坤 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 100 |
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