| URN | etd-0707118-170449 | Statistics | This thesis had been viewed 267 times. Download 1 times. |
| Author | CHIA-HSIN LIN | ||
| Author's Email Address | nicolelin690320@gmail.com | ||
| Department | Department of construction & spatial design | ||
| Year | 2017 | Semester | 2 |
| Degree | Master | Type of Document | Master's Thesis |
| Language | zh-TW.Big5 Chinese | Page Count | 117 |
| Title | Experimental Study on the Characteristics of Wave Dissipation by Stepped Submerged Embankment | ||
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| Abstract | The purpose of this study was to investigate the performance of stepped embankments for the reduction of wave overtopping to prevent from wave attack and storm surge. In this paper, we make regular waves with different periods pass through the stepped triangle embankment with many size sets in many directions and slopes. Also, capacitance wave gage was used to measure the reflectivityˇBtransmission rate and energy loss rate so that we can determine the character of stepped embankment in reducing energy. According to the result of experiments and analysis, it's proved that the reflectivity could be higher if the stepped embankment is placed along the coast, and different types and sizes of stepped embankment would thus generate different impacts. The experiment result shows that the reduction effects of waves will be better when waves pass through wider stepped embankment. By analyzing the results, it was found that Case F, the 15cm height embankment, was the optimal configuration for reducing wave energy. Due to the traditional designs like wave block, detached breakwater, and groin in coast, the structures are not pretty and may have negative impacts on the ecosystem function. Therefore, we set different structures of reducing waves in water and estimate the reduction effects of different stepped embankments to demonstrate the feasibility of replacing traditional wave block with stepped embankments. |
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| Files | indicate in-campus access at 5 years and off-campus access at 5 years | ||
| Date of Defense | 2018-06-29 | Date of Submission | 2018-07-07 |