Plastic and nonmetallic article shaping or treating: processes – Treatment of material by vibrating – jarring – or agitating...
Patent
1989-02-21
1991-06-18
Taylor, Dennis L.
Plastic and nonmetallic article shaping or treating: processes
Treatment of material by vibrating, jarring, or agitating...
264256, 405 30, E02B 306, B28B 108
Patent
active
050247964
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a permeable wave dissipating caisson for dispersing the energy of waves and a method for producing the permeable wave dissipating caisson.
2. Brief Description of the Prior Art
In order to break waves so as to make a connecting facility or for use to protect houses along the shore, the construction of a breakwater has been popular for a long time.
However, if the wave height is higher than the construction, flooding occurs.
Apart from the breakwater, a fender may be provided for the wave dissipation and actually placed at the beach. There, are various kinds of constructions for wave dissipation which includes a construction along the shore and smaller constructions or simple blocks for wave dissipation may be piled up or put side by side properly in a job site.
However, if new repair or improvement of the construction is conducted in harbors, fishing ports, seashore, rivers, seaside road, fishing blocks, the construction scale of the wave dispertion becomes large and permanent durability is expected for the repaired or improved construction.
Some constructions can meet these requirement a little bit, yet insufficiently. For example, when the wave dissipating caisson which is 3.times.3.times.4.5 m and 5.times.5.times.7.5 m or more in size is constructed to a specified place, the stability becomes important more and more in view of the size and weight.
In this scale of the caissons, the producing method is as follows. The base portion is pre-molded and concrete is deposited onto the upper portion of it, but each portion cannot have consistency in construction completely.
SUMMARY OF THE INVENTION
A wave dissipating caisson comprising edge pieces including a rectangular parallelepipied skeleton and two sets of wing bodies having two pieces of trapezoidal or triangular wing with extending base, wherein the sets of wing bodies joined at the top portion, are connected each other with 90 degrees shift at said top portions in the proceeding direction of-the wave relative to the skeleton while a base portion of the wing bodies fit into crosspieces or pillars consisting the edge pieces.
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
Now the present invention will be described in more detail with reference to the accompanying drawings which illustrate the preferred embodiments of the invention, in which:
FIG. 1 is a perspective view of the wave dissipating caisson which is an embodiment of the basic concept of the present invention;
FIG. 2 is a perspective view of a internal structure in the wave dissipating caisson shown in FIG. 1;
FIG. 3 illustrates a plane view of the wave dissipating caisson according to the invention;
FIG. 4 is a sectional view taken along line B--B in FIG. 3;
FIG. 5 is a sectional view taken along line C--C in FIG. 3;
FIG. 6 is a front view of the wave dissipating caisson shown in FIG. 3;
FIG. 7 is a left side view of the wave dissipating caisson shown in FIG. 6;
FIG. 8 is a right side view of the wave dissipating caisson shown in FIG. 6;
FIG. 9 illustrates a sectional view between a gravel mound and the wave dissipating caisson when an experimental test is conducted;
FIG. 10 illustrates a diagram showing a transmission rate;
FIG. 11 illustrates a diagram showing the reflection rate;
FIG. 12 illustrates a diagram which shows the reflection rate of 0.2-0.4 in distribution;
FIG. 13 illustrates a diagram which shows the wave height transmission rate of 0.2-0.4 in distribution described in FIG. 12.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS OF THE INVENTION
Preferred Embodiments
Prefered embodiments of the present invention will be explained with reference to the drawings. FIG. 1 illustrates a perspective view of a wave dissipating caisson which is an embodiment of the basic concept of the present invention.
In FIG. 1, two sets of wing bodies 3 comprising two pieces of trapezoidal or triangular wing pieces with each wing joined at the top portion, are connected to each other with 90 degrees shift and
REFERENCES:
patent: 3705228 (1972-12-01), Mattingly
patent: 4347017 (1982-08-01), Chevallier
patent: 4372906 (1983-02-01), del Valle
patent: 4431337 (1984-02-01), Iwasa
Olsen Arlen L
Taylor Dennis L.
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