JP4764968B2 - 防波堤 - Google Patents
防波堤 Download PDFInfo
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- JP4764968B2 JP4764968B2 JP2005031236A JP2005031236A JP4764968B2 JP 4764968 B2 JP4764968 B2 JP 4764968B2 JP 2005031236 A JP2005031236 A JP 2005031236A JP 2005031236 A JP2005031236 A JP 2005031236A JP 4764968 B2 JP4764968 B2 JP 4764968B2
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- wave
- breakwater
- gravel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/11—Hard structures, e.g. dams, dykes or breakwaters
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Description
平石哲也、永瀬恭一著、「流体直接解析法による長周期波対策護岸の性能検討」、海岸工学論文集、日本、土木学会、2002年、第49巻、p686−690
本実施の形態では、スリットケーソンの背後に消波層を設けた構成の防波堤において、消波層を複数のブロックから構成し、個々のブロックがそれぞれ異なる粒径の代表値で示される礫等の充填材が集積されて構成されている場合について説明する。
本実施の形態では、前記実施の形態1で説明した構成の防波堤の消波層における波浪のエネルギー減衰を、消波層を構成する礫等の充填材の粒径との関係から規定して、かかる結果を用いて本発明に係る構成の防波堤の設計を行う場合に使用する有効な手法について説明する。
前記実施の形態1では、集積する礫の粒径の代表値が異なる複数のブロックの区分けを、図1(a)、(b)に示すように、鉛直方向に行う場合について説明したが、図9(a)に示すように、ブロックの区分けをスロープ状に設定しても構わない。図9(b)は、図9(a)に示す場合の逆に設定した場合を示す。図9(c)に示す構成は、ブロック20a、20b、20cの各区分けスロープの傾斜方向を同一方向に揃えた構成の一例を示す。図9(d)に示す構成は、ブロック20a、20b、20cの区分けスロープを、向きを互いに逆方向に設定した場合の一例である。
11 遊水室
20 消波層
20a ブロック
20b ブロック
30 マウンド
50 造波水路
60 往復流発生装置
61 電磁流量計
62 ポンプ
63 円筒試験容器
64 管路
100 防波堤
110 スリットケーソン
120 消波層
A 防波堤
B 防波堤模型
B10 スリットケーソン
B11 遊水室
B20 消波層
B20a ブロック
B20b ブロック
B30 マウンド
D20a 中央粒径
D20b 中央粒径
D20c 中央粒径
Claims (2)
- 波浪の打ち寄せる側にスリットケーソンを設け、前記スリットケーソンの背後に消波層を設けた防波堤であって、
前記スリットケーソンは礫等の充填材が充填されない遊水室を備え、
前記消波層は、礫等の充填材を集積した複数のブロックからなり、
前記消波層を構成する複数のブロックは、波浪の打ち寄せ方向に沿って、前記スリットケーソン側から離れるに従って、前記充填材の粒径の代表値が小さくなる複数のブロックが順次配置されて形成され、
複数の前記消波層に集積される前記充填材の粒径は、デュプイ−ホルヒハイマー則を用いた数値解析手法により、事前に予測された前記消波層に透水した波浪のエネルギー減衰に基づいて設定されていることを特徴とする防波堤。 - 請求項1記載の防波堤において、
前記充填材の粒径の代表値とは、礫の粒径の中央粒径であることを特徴とする防波堤。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005031236A JP4764968B2 (ja) | 2005-02-08 | 2005-02-08 | 防波堤 |
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JP2005031236A JP4764968B2 (ja) | 2005-02-08 | 2005-02-08 | 防波堤 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006219817A JP2006219817A (ja) | 2006-08-24 |
JP4764968B2 true JP4764968B2 (ja) | 2011-09-07 |
Family
ID=36982322
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2005031236A Expired - Fee Related JP4764968B2 (ja) | 2005-02-08 | 2005-02-08 | 防波堤 |
Country Status (1)
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JP (1) | JP4764968B2 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101089595B1 (ko) * | 2009-09-07 | 2011-12-05 | 구태희 | 조차를 고려한 해수 교환 방파제 |
KR101190321B1 (ko) * | 2012-03-27 | 2012-10-11 | 김석문 | 3차원 방파제 시뮬레이션 시스템 및 그 시뮬레이션 방법 |
JP2016148195A (ja) * | 2015-02-12 | 2016-08-18 | 国立大学法人山口大学 | 洗掘防止方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5153736A (en) * | 1974-11-05 | 1976-05-12 | Taiho Kensetsu Kk | Goganmataha ganpekino chikuzohoho |
JPS6052245B2 (ja) * | 1980-09-26 | 1985-11-18 | 石倉 富子 | 防波堤等の消波構造物 |
JPH02197607A (ja) * | 1989-01-25 | 1990-08-06 | Kubota Ltd | 護岸ブロック |
JP2881246B2 (ja) * | 1990-03-29 | 1999-04-12 | 清水建設株式会社 | 水域浄化施設 |
JP2001040633A (ja) * | 1999-08-02 | 2001-02-13 | Kobe Steel Ltd | 消波構造物 |
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2005
- 2005-02-08 JP JP2005031236A patent/JP4764968B2/ja not_active Expired - Fee Related
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JP2006219817A (ja) | 2006-08-24 |
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