JPS57151712A - Concrete block - Google Patents

Concrete block

Info

Publication number
JPS57151712A
JPS57151712A JP3696681A JP3696681A JPS57151712A JP S57151712 A JPS57151712 A JP S57151712A JP 3696681 A JP3696681 A JP 3696681A JP 3696681 A JP3696681 A JP 3696681A JP S57151712 A JPS57151712 A JP S57151712A
Authority
JP
Japan
Prior art keywords
head
base body
way
flow
terapezoidal
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
JP3696681A
Other languages
Japanese (ja)
Inventor
Tadahiko Yagyu
Yoshimi Aida
Katsutoshi Tanimoto
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.)
UNYUSHIYOU KOUWAN GIJUTSU KENK
UNYUSHIYOU KOUWAN GIJUTSU KENKYUSHO
UNYUSHO KOWAN GIJUTSU KENKYUSHO
Original Assignee
UNYUSHIYOU KOUWAN GIJUTSU KENK
UNYUSHIYOU KOUWAN GIJUTSU KENKYUSHO
UNYUSHO KOWAN GIJUTSU KENKYUSHO
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 UNYUSHIYOU KOUWAN GIJUTSU KENK, UNYUSHIYOU KOUWAN GIJUTSU KENKYUSHO, UNYUSHO KOWAN GIJUTSU KENKYUSHO filed Critical UNYUSHIYOU KOUWAN GIJUTSU KENK
Priority to JP3696681A priority Critical patent/JPS57151712A/en
Publication of JPS57151712A publication Critical patent/JPS57151712A/en
Pending legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
    • E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
    • E02B3/14—Preformed blocks or slabs for forming essentially continuous surfaces; Arrangements thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Revetment (AREA)

Abstract

PURPOSE:To reduce the force of tidal wave, etc., acting on the covering material of mound for retaining the stability of the covering material by a method in which the head of blocks to be used for covering a rubble-mound is made into almost terapezoidal or truncated cylinder form in such a way that the head is gently projected upwards. CONSTITUTION:On the down side of a base body 1 whose corners 8 are cut in such a way as to form two pairs or more of mutually parallel sides, plural feets 2 between which water-passible apertures 3 are formed and also a head 4 gently projecting upwards in such a way as to make it almost terapezoidal or truncated cylinder form is integrally formed on the base body 1. By using such a block, the flow of a fluid can be directed toward the direction of arrow smoothly and with lessened resistance. Also, since the feet 2 with water-passible apertures 3 is provided and thereby a flow is produced even on the down side of the base body 1, the pressure difference due to the difference in flow rate between the upper and lower sides can be lessened and lifting force can be reduced.
JP3696681A 1981-03-13 1981-03-13 Concrete block Pending JPS57151712A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3696681A JPS57151712A (en) 1981-03-13 1981-03-13 Concrete block

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3696681A JPS57151712A (en) 1981-03-13 1981-03-13 Concrete block

Publications (1)

Publication Number Publication Date
JPS57151712A true JPS57151712A (en) 1982-09-18

Family

ID=12484470

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3696681A Pending JPS57151712A (en) 1981-03-13 1981-03-13 Concrete block

Country Status (1)

Country Link
JP (1) JPS57151712A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH032023U (en) * 1989-05-29 1991-01-10
JPH0516825U (en) * 1991-08-26 1993-03-02 菱和コンクリート工業株式会社 Block for coating
US5267812A (en) * 1991-03-30 1993-12-07 Hazama Corporation Upwelling-generating structure
US6106195A (en) * 1996-05-20 2000-08-22 Toeishokou Kabushiki Kaisha Method of formation of tidal residual current in water area
FR3068716A1 (en) * 2017-07-10 2019-01-11 Artelia Eau Et Environnement ARTIFICIAL FOOT BLOCK FOR ROTATION

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH032023U (en) * 1989-05-29 1991-01-10
US5267812A (en) * 1991-03-30 1993-12-07 Hazama Corporation Upwelling-generating structure
JPH0516825U (en) * 1991-08-26 1993-03-02 菱和コンクリート工業株式会社 Block for coating
US6106195A (en) * 1996-05-20 2000-08-22 Toeishokou Kabushiki Kaisha Method of formation of tidal residual current in water area
FR3068716A1 (en) * 2017-07-10 2019-01-11 Artelia Eau Et Environnement ARTIFICIAL FOOT BLOCK FOR ROTATION
WO2019012217A1 (en) * 2017-07-10 2019-01-17 Artelia Eau Et Environnement Defence structure for a maritime or river structure

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