碩士 / 中華大學 / 土木工程學系碩士班 / 93 / The estuary of the Sirlyu River, Miao-Li County was chosen as a study site where mangrove grows. The properties of stratum in Sirlyu River were surveyed. Seven types of structure of levee were recommended in study site. Fourteen indexes were used to evaluate the properties of those structures. The fourteen indexes are construction cost, design process, the specifications of materials, the utilization of field materials, construction process, quality control, the protection of mangrove, the protection of environment during construction, the potential factors affecting structural function, management, view, vegetation, access to waterside, and people’s cognition.
The weight of each index for seven types of structure were set as seven point scale from one to seven. A structure with higher point scale means its function for specified index is inferior. Then we sum up the point scales of fourteen indexes for each structure, and rank its functional level depending on their total point scales. The total point scales of the “bank combined with continuous block” and the “bank combined with soil gabion and stone gabion” are at 67, and are evaluated as “poor”. The “bank combined with stone gabion” is evaluated as “fair”. The “bank with long stone gabion”, the “retaining wall with masonry”, and the “bank with concrete layer” are evaluated as “good”. The total point scale of the “soil-cement bank” is at 38, and is evaluated as “excellent”.
| Identifer | oai:union.ndltd.org:TW/093CHPI0015087 |
| Date | January 2005 |
| Creators | CHIH HANG YEH, 葉志航 |
| Contributors | Wenchin Lin, 林文欽 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 85 |
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