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 wave

Info

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
Application number
JP7642078A
Other languages
Japanese (ja)
Inventor
Tooru Sawaraki
Tatsumi Inada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Giken Kogyo Co Ltd
Original Assignee
Giken Kogyo Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Giken Kogyo Co Ltd filed Critical Giken Kogyo Co Ltd
Priority to JP7642078A priority Critical patent/JPS554430A/en
Publication of JPS554430A publication Critical patent/JPS554430A/en
Pending legal-status Critical Current

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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
JP7642078A 1978-06-26 1978-06-26 Method of constructing quay of concrete block capable of minimizing reflection of wave Pending JPS554430A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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