IV. Retreating Shorelines
235
Various processes of the planning,
designing, engineering and
administration of artificial
beaches
1. Establishment
of
various
requirement conditions of the
beach
2. Decision on the kinds and scales
of required facilities
3. Methods of laying out facilities
4. Estimation of marine weather
control effects
5. Detailed designing of facilities
6. Implementation of construction
engineering
7. Beach administration
Matters to be elucidated
Methods to be established
- Elucidation of water-purifying functions of the
beach.
- Elucidation of the beach characteristics as the
raising environment for various creatures.
-
Beach characteristics desirable as a recreation
space including bathing place, consumption of
various facilities, etc.
-
Selection of necessary facilities that match
construction objectives of the beach.
-
Establishment of the decision method of
facility, scales.
-
Elucidation of mutual relationships among
various facility function.
- Study of how these facilities are actually used.
- Prediction of wave-deformation in the Surf
Zone (refraction, diffraction, reflection).
- Prediction of beach current (especially in the
vicinity of structures).
- Prediction of exchangeability and diffusion of
sea-water.
- Review of beach stability.
- Prediction of bottom quality changes.
- Elucidation of functions of marine weather
control structures (special weather-breaking
facilities, etc.).
Safety-related considerations and measures.
Landscape-related considerations, measures,
etc.
Measures to collect, transport and fill soil and
sand.
Measures to improve the yield of soil and sand
durin[ construction.
Selection of administration items and review of l
methods.
Follow-up survey, its analysis and others.
Table 2 : Knowledge and method required in the Process of the planning, designing,
construction engineering and administration of artificial beaches.
(From Nakayama, Kataoka and Obara, 1982)