JP4663403B2 - 透過型砂防堰堤 - Google Patents
透過型砂防堰堤 Download PDFInfo
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- JP4663403B2 JP4663403B2 JP2005151666A JP2005151666A JP4663403B2 JP 4663403 B2 JP4663403 B2 JP 4663403B2 JP 2005151666 A JP2005151666 A JP 2005151666A JP 2005151666 A JP2005151666 A JP 2005151666A JP 4663403 B2 JP4663403 B2 JP 4663403B2
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Description
いる。
透過方砂防堰堤。
2 基台
3 櫓体
4 河床
5 フランジ
6 上流側捕捉面
7 下流側捕捉面
8 柱材
9 梁材
10 梁材
11 柱材
12 梁材
13 コンクリート擁壁
14 横桟体
14a 横桟
14b 縦枠
15 ボルト
16 ブラケット
17 梁材
18 緩衝鋼管
Claims (4)
- 巨礫を先頭にして渓床等を走る土石流を捕捉し、無害土砂や小礫を通過させるため、鋼材によって枠組が構築されている透過型砂防堰堤において、
前記枠組は、通常水位時大部分が水面上にあって、河床に固定された基台の下流側部位上面に設けられる櫓体であり、
その櫓体の前面および後面には、土石流に対して一定の角度を保って河幅方向へ延びる上流側捕捉面および下流側捕捉面が形成され、
前記上流側捕捉面は、設置渓流等において発生する礫石のうち巨礫をせき止めるために配置された柱材および梁材により構成され、
前記下流側捕捉面は、柱材と、梁材と、前記柱材に設けられた横桟体または縦桟体とにより構成され、
前記柱材に横桟体が設けられている場合、当該横桟体は、縦枠と、設置渓流等において発生する礫石のうち中礫をせき止めるためであって、前記巨礫をせき止めるために配置された梁材の間隔よりも狭い間隔で前記縦枠に設けられた複数の横桟とからなり、
前記柱材に縦桟体が設けられている場合、当該縦桟体は、横枠と、設置渓流等において発生する礫石のうち中礫をせき止めるためであって、前記巨礫をせき止めるために配置された柱材の間隔よりも狭い間隔で前記横枠に複数設けられた縦桟とからなっていることを特徴とする透過型砂防堰堤。 - 前記横桟体または前記縦桟体はいずれも、締結手段により、前記柱材に取付け、取外し自在となっている請求項1に記載の透過型砂防堰堤。
- 前記上流側捕捉面は土石流に対して鈍角をなすように河川の下流側に向けて傾斜しており、前記下流側捕捉面は土石流に対して鋭角をなすように河川の上流側に向けて傾斜している、請求項1または2に記載の透過型砂防堰堤。
- 前記上流側捕捉面には、土石流の衝突による衝撃を緩衝するための緩衝鋼管が設けられている請求項1から3のうちの何れか1つに記載の透過型砂防堰堤。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005151666A JP4663403B2 (ja) | 2005-05-24 | 2005-05-24 | 透過型砂防堰堤 |
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JP2005151666A JP4663403B2 (ja) | 2005-05-24 | 2005-05-24 | 透過型砂防堰堤 |
Publications (2)
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JP2006328721A JP2006328721A (ja) | 2006-12-07 |
JP4663403B2 true JP4663403B2 (ja) | 2011-04-06 |
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JP2005151666A Active JP4663403B2 (ja) | 2005-05-24 | 2005-05-24 | 透過型砂防堰堤 |
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JP (1) | JP4663403B2 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5822499B2 (ja) * | 2011-03-29 | 2015-11-24 | 日鐵住金建材株式会社 | 鋼製スリットダム |
JP6840340B2 (ja) * | 2017-11-15 | 2021-03-10 | 一般財団法人砂防・地すべり技術センター | 流体物捕捉構造体 |
JP7295530B2 (ja) * | 2019-08-09 | 2023-06-21 | Jfe建材株式会社 | 透過型砂防堰堤 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0782725A (ja) * | 1993-09-17 | 1995-03-28 | Takahisa Mizuyama | 透過型砂防堰堤 |
JPH1150435A (ja) * | 1997-08-05 | 1999-02-23 | Kawatetsu Steel Prod Corp | 半透過型砂防ダム |
JP2004270329A (ja) * | 2003-03-10 | 2004-09-30 | Sumitomo Metal Steel Products Inc | スリット砂防えん堤の更新方法とその構造 |
JP2005315062A (ja) * | 2004-03-31 | 2005-11-10 | Shibata Ind Co Ltd | 砂防ダム |
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2005
- 2005-05-24 JP JP2005151666A patent/JP4663403B2/ja active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0782725A (ja) * | 1993-09-17 | 1995-03-28 | Takahisa Mizuyama | 透過型砂防堰堤 |
JPH1150435A (ja) * | 1997-08-05 | 1999-02-23 | Kawatetsu Steel Prod Corp | 半透過型砂防ダム |
JP2004270329A (ja) * | 2003-03-10 | 2004-09-30 | Sumitomo Metal Steel Products Inc | スリット砂防えん堤の更新方法とその構造 |
JP2005315062A (ja) * | 2004-03-31 | 2005-11-10 | Shibata Ind Co Ltd | 砂防ダム |
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