Abstract
The Fukushima Coast composed of a series of soft rock cliffs had suffered from severe erosion due to two factors: high wave attacks and weak rocks. This study attempts to quantify these factors, respectively, by the onshore component of wave energy flux at the breaking point, F, through the refraction analysis, and by Young's modulus, E, through the measurement of the elastic wave. The dimensional consideration yields a dimensionless parameter ∏C = qEL/F where q is the recession rate, L is the cliff height. On this coast, the value of ∏C -0.082 obtained from the best fit of the present data-set gives the recession characteristic q = 0.082F/EL.
| Original language | English |
|---|---|
| Pages (from-to) | 43-63 |
| Number of pages | 21 |
| Journal | Coastal Engineering Journal |
| Volume | 41 |
| Issue number | 1-4 |
| Publication status | Published - 1999 Jan 1 |
Keywords
- Cliff erosion
- Energy flux
- Refraction
- Soft rock
- Young's modulus
ASJC Scopus subject areas
- Civil and Structural Engineering
- Modelling and Simulation
- Ocean Engineering