JPS554430A - Method of constructing quay of concrete block capable of minimizing reflection of wave - Google Patents
Method of constructing quay of concrete block capable of minimizing reflection of waveInfo
- Publication number
- JPS554430A JPS554430A JP7642078A JP7642078A JPS554430A JP S554430 A JPS554430 A JP S554430A JP 7642078 A JP7642078 A JP 7642078A JP 7642078 A JP7642078 A JP 7642078A JP S554430 A JPS554430 A JP S554430A
- Authority
- JP
- Japan
- Prior art keywords
- blocks
- projections
- section
- assembly
- groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Revetment (AREA)
Abstract
PURPOSE: To absorb energy of waves efficiently by longitudinal and lateral holes formed in the assembly of concrete blocks.
CONSTITUTION: At the central portion of upper and lower surfaces of block 1, there is formed respectively a longitudinal groove 2 having a trapezoidal cross section. Between this groove 2 and half-groove 3 having a cross section obtained by dividing said trapezoidal cross section correctly into two parts, there are formed upper and lower projections 4 also having a trapezoidal cross section. Further, centrally of the opposite side faces of projections 5, there is formed a recess 6. Such blocks 1 as arranged above are combined in required layers, in the manner that side projections 5 of adjacent blocks 1 are held in contact with each other and lower projections 4 of upper blocks are placed on the upper projections 4 of lower blocks. Waves advancing toward the assembly of such blocks from region P are deprived of their energy when passing through holes (a) formed in the block assembly, so that their height can be reduced.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7642078A JPS554430A (en) | 1978-06-26 | 1978-06-26 | Method of constructing quay of concrete block capable of minimizing reflection of wave |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7642078A JPS554430A (en) | 1978-06-26 | 1978-06-26 | Method of constructing quay of concrete block capable of minimizing reflection of wave |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS554430A true JPS554430A (en) | 1980-01-12 |
Family
ID=13604690
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7642078A Pending JPS554430A (en) | 1978-06-26 | 1978-06-26 | Method of constructing quay of concrete block capable of minimizing reflection of wave |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS554430A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59114186U (en) * | 1983-01-21 | 1984-08-01 | ダイコク電機株式会社 | Centralized control device for pachinko game machines |
-
1978
- 1978-06-26 JP JP7642078A patent/JPS554430A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59114186U (en) * | 1983-01-21 | 1984-08-01 | ダイコク電機株式会社 | Centralized control device for pachinko game machines |
JPH0311027Y2 (en) * | 1983-01-21 | 1991-03-18 |
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