JPH052050B2 - - Google Patents
Info
- Publication number
- JPH052050B2 JPH052050B2 JP12387487A JP12387487A JPH052050B2 JP H052050 B2 JPH052050 B2 JP H052050B2 JP 12387487 A JP12387487 A JP 12387487A JP 12387487 A JP12387487 A JP 12387487A JP H052050 B2 JPH052050 B2 JP H052050B2
- Authority
- JP
- Japan
- Prior art keywords
- steel
- sabo
- river
- frame unit
- intervals
- 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.)
- Expired - Lifetime
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 53
- 239000010959 steel Substances 0.000 claims description 53
- 230000003628 erosive effect Effects 0.000 description 18
- 239000004575 stone Substances 0.000 description 10
- 238000003466 welding Methods 0.000 description 5
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 1
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は河川内に設置して土石流を減勢させ
るオープン型鋼製砂防堰堤に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an open type steel sabo dam that is installed in a river to reduce debris flow.
従来、河川内に設置して土石流を減勢させるオ
ープン型の鋼製砂防堰堤としては、(1)実公昭55−
10436号公報により公表されているように、河川
縦断方向に間隔をおいて配置された２本の鋼製支
柱を鋼製連結部材により連結して平面状の鋼製砂
防枠ユニツトを構成し、複数の砂防枠ユニツトを
河川横断方向に間隔をおいて配置すると共に、各
砂防枠ユニツトの支柱を河川流れ方向に並ぶよう
に配置した状態で、各砂防枠ユニツトを河床基盤
に固定した砂防堰堤、(2)特公昭58−51568号公報
により公表されているように、鋼製棒状部材を河
川の横断方向および縦断方向に格子状に架設して
結合した立体フレーム状の砂防堰堤が知られてい
る。
Conventionally, open steel sabo dams installed in rivers to reduce the force of debris flows were: (1)
As announced in Publication No. 10436, two steel columns placed at intervals in the longitudinal direction of the river are connected by a steel connecting member to form a planar steel erosion control frame unit, and multiple An erosion control dam, in which each erosion control frame unit is fixed to a river bed foundation, with the erosion control frame units arranged at intervals in the river transverse direction, and the supports of each erosion control frame unit arranged in line in the river flow direction, ( 2) As disclosed in Japanese Patent Publication No. 58-51568, a three-dimensional frame-shaped sabo dam is known in which steel bar-shaped members are constructed and connected in a lattice shape in the transverse and longitudinal directions of a river.
しかるに、前記(1)の砂防堰堤の場合は、砂防枠
ユニツトの間に堆積した石磔を容易に取除くこと
ができるが、平面状の砂防枠ユニツトが河川縦断
方向の平面上に位置するように配置されているの
で、河川横断方向および斜め横方向の外力に対す
る砂防枠ユニツトの強度が弱いという問題があ
る。
However, in the case of the sabo dam mentioned in (1) above, stones accumulated between the sabo frame units can be easily removed; Therefore, there is a problem in that the strength of the erosion control frame unit against external forces in the cross-river direction and diagonal lateral direction is weak.
また前記(2)の砂防堰堤の場合は、大きな強度を
有するが、砂防堰堤内に入り込んだ石磔を取り除
くことができないので、オープンダムとしての機
能が徐々に低下していくという問題がある。 In addition, in the case of the sabo dam (2) above, although it has great strength, there is a problem that the function as an open dam gradually deteriorates because it is impossible to remove stones that have entered the sabo dam.
この発明は前述の問題を有利に解決できるオー
プン型鋼製砂防堰堤を提供することを目的とする
ものであつて、この発明の要旨とするところは、
３本以上の鋼製支柱１が同一平面上に並ばないよ
うに間隔をおいて配置されると共に、各支柱１が
それぞれ支柱長手方向に間隔をおいて配置された
複数の鋼製連結部材２を介して連結されて、立体
構造の鋼製砂防枠ユニツト３が構成され、複数の
砂防枠ユニツト３が、河川内において河川横断方
向に間隔をおいて配置されると共に、河床基盤４
に固定されていることを特徴とするオープン型鋼
製砂防堰堤にある。
The object of this invention is to provide an open type steel sabo dam that can advantageously solve the above-mentioned problems, and the gist of this invention is to:
Three or more steel columns 1 are arranged at intervals so as not to be lined up on the same plane, and each column 1 has a plurality of steel connecting members 2 arranged at intervals in the longitudinal direction of the columns. A three-dimensional steel sabo frame unit 3 is constructed by connecting the two sabo frame units 3 through the river bed foundation 4.
It is located in an open type steel sabo dam, which is characterized by being fixed to the dam.
次にこの発明を図示の例によつて詳細に説明す
る。
Next, the present invention will be explained in detail using illustrated examples.
第３図はこの発明の第１実施例において用いら
れる鋼製砂防枠ユニツト３を示すものであつて、
各鋼管からなる４本の鋼製支柱１が台形の４隅に
位置するように配置され、隣り合う各支柱１の間
に、それぞれ上下方向に間隔をおいて角鋼管から
なる鋼製連結部材２が配置され、各連結部材２の
端部は支柱１に対し溶接等により固着され、前記
各支柱１とこれを連結する各鋼製連結部材２とに
より鋼製砂防枠ユニツト３が構成されている。 FIG. 3 shows a steel erosion control frame unit 3 used in the first embodiment of the present invention.
Four steel columns 1 made of steel pipes are arranged so as to be located at the four corners of a trapezoid, and steel connecting members 2 made of square steel pipes are spaced vertically between each adjacent column 1. are arranged, and the end of each connecting member 2 is fixed to the pillar 1 by welding or the like, and a steel erosion control frame unit 3 is constituted by each of the pillars 1 and each steel connecting member 2 that connects them. .
第１図および第２図は第３図に示す鋼製砂防枠
ユニツト３を使用したこの発明の第１実施例に係
るオープン型鋼製砂防堰堤を示すものであつて、
複数の砂防枠ユニツト３が河川内のコンクリート
側壁５の間において河川横断方向に間隔をおいて
配置され、かつ下流側の２本の支柱１が上方に向
かつて上流側に倒れる方向に傾斜するように配置
されると共に、上流側の２本の支柱１が上方に向
かつて下流側に倒れる方向に傾斜するように配置
され、各支柱１の下部はコンクリートの河床基盤
４に埋込固定されている。 1 and 2 show an open type steel sabo dam according to a first embodiment of the present invention using the steel sabo frame unit 3 shown in FIG.
A plurality of sabo frame units 3 are arranged at intervals in the river transverse direction between concrete side walls 5 in the river, and the two columns 1 on the downstream side are tilted in the direction of facing upward and collapsing to the upstream side. At the same time, the two columns 1 on the upstream side are arranged so as to be tilted upward and downward toward the downstream side, and the lower part of each column 1 is embedded and fixed in the concrete riverbed foundation 4. .
第６図はこの発明の第２実施例において用いら
れる鋼製砂防枠ユニツト３を示すものであつて、
鋼管からなる３本の鋼製支柱１が３角錐の稜線上
に位置するように配置され、隣り合う各支柱１の
中間部に、それぞれ上下方向に間隔をおいて鋼管
からなる鋼製連結部材２が配置され、各連結部材
２の端部は支柱１に対し溶接等により固着されて
いる。 FIG. 6 shows a steel erosion control frame unit 3 used in a second embodiment of the present invention.
Three steel columns 1 made of steel pipes are arranged so as to be located on the ridgeline of a triangular pyramid, and a steel connecting member 2 made of steel pipes is placed in the middle of each adjacent column 1 at intervals in the vertical direction. are arranged, and the end of each connecting member 2 is fixed to the column 1 by welding or the like.
第４図および第５図は第６図に示す鋼製砂防枠
ユニツト３を使用したこの発明の第２実施例に係
るオープン型鋼製砂防堰堤を示すものであつて、
複数の砂防枠ユニツト３が河川内のコンクリート
側壁５の間において河川横断方向に間隔をおいて
配置され、かつ１本の支柱１が下流側に位置する
と共に、２本の支柱１が上流側に位置するように
配置され、各支柱１の下部はコンクリートの河床
基盤４に埋込固定されている。 4 and 5 show an open type steel sabo dam according to a second embodiment of the present invention using the steel sabo frame unit 3 shown in FIG. 6,
A plurality of erosion control frame units 3 are arranged at intervals in the river transverse direction between the concrete side walls 5 in the river, and one pillar 1 is located on the downstream side, and two pillars 1 are located on the upstream side. The lower part of each support column 1 is embedded and fixed in a concrete river bed base 4.
前記各実施例のオープン型鋼製砂防堰堤におい
て、河川内を流れる土石流が砂防堰堤における砂
防枠ユニツト３に衝突すると、土石流が減勢さ
れ、土石流中の大部分の石磔は砂防堰堤の部分で
停止し、土石流中の砂の一部は砂防堰堤を通過し
て流出する。 In the open type steel sabo dam of each of the above embodiments, when the debris flow flowing in the river collides with the sabo frame unit 3 in the sabo dam, the force of the debris flow is reduced, and most of the stones in the debris flow are removed from the sabo dam. The debris flow stops and some of the sand in the debris flow flows out through the erosion control dam.
砂防堰堤の使用期間が長くなつていくと、砂防
枠ユニツト３内および隣り合う砂防枠ユニツト３
の間に石磔が堆積していくので、隣り合う砂防枠
ユニツト３の間の石磔堆積量が多くなつたとき、
バツクホウ等の機械により、隣り合う砂防枠ユニ
ツト３の間の石磔を撤去する。 As the period of use of the sabo dam increases, the erosion inside the sabo frame unit 3 and the adjacent sabo frame units 3
Since stones are accumulated between the two, when the amount of stones accumulated between adjacent erosion control frame units 3 increases,
The stones between adjacent erosion control frame units 3 are removed using a machine such as a backhoe.
この発明を実施する場合、各鋼製支柱１の下端
部に鋼製ベースプレートを溶接により固着し、そ
のベースプレートを河床基盤４に載置してアンカ
ーボルトにより固定してもよい。また鋼製支柱１
と鋼製連結部材２とを溶接により固着しないで、
鋼製連結部材２の端部に溶接により固着された鋼
製フランジを鋼製支柱１に対しボルトにより固定
してもよい。 When carrying out this invention, a steel base plate may be fixed to the lower end of each steel support column 1 by welding, and the base plate may be placed on the river bed base 4 and fixed with anchor bolts. In addition, steel support 1
and the steel connecting member 2 without fixing them by welding,
A steel flange fixed to the end of the steel connecting member 2 by welding may be fixed to the steel column 1 with bolts.
この発明によれば、３本以上の鋼製支柱１が同
一平面上に並ばないように間隔をおいて配置され
ると共に、各支柱１がそれぞれ支柱長手方向に間
隔をおいて配置された複数の鋼製連結部材２を介
して連結されて、立体構造の鋼製砂防枠ユニツト
３が構成されているので、河川縦断方向だけでな
く河川横断方向および斜め横方向等の任意の横方
向外力に対しても強固な鋼製砂防枠ユニツト３が
得られ、そのため石磔流が任意の横方向から鋼製
砂防枠ユニツト３に衝突しても、その鋼製砂防枠
ユニツト３が著しく強固であり、かつ前記立体構
造の鋼製砂防枠ユニツト３が河川横断方向に間隔
をおいて配置されて河床基盤４に固定されている
ので、隣り合う砂防枠ユニツト３の間に石磔が堆
積した場合は、バツクホウ等の機械により堆積し
た石磔を容易に撤去して、再び隣り合う砂防枠ユ
ニツト３の間に空隙を設けることができ、さらに
砂防枠ユニツト３内に拘束されている石磔と隣り
合う砂防枠ユニツト３間の空隙とによりオープン
型の砂防堰堤が構成されるので、常に土石流の減
勢効果を発揮させることができる等の効果が得ら
れる。
According to this invention, three or more steel columns 1 are arranged at intervals so as not to be lined up on the same plane, and each column 1 has a plurality of steel columns 1 arranged at intervals in the longitudinal direction of the columns. Since they are connected via steel connecting members 2 to form a three-dimensional steel erosion control frame unit 3, they are resistant to external forces in any lateral direction, not only in the longitudinal direction of the river, but also in the cross-river direction and in the diagonal lateral direction. Therefore, even if a stone flow collides with the steel sabo frame unit 3 from any lateral direction, the steel sabo frame unit 3 is extremely strong and Since the three-dimensional steel sabo frame units 3 are arranged at intervals in the river transverse direction and fixed to the river bed foundation 4, if stones are accumulated between adjacent sabo frame units 3, the backhoes will be removed. It is possible to easily remove the accumulated stones using a machine such as the above, and create a gap again between the adjacent sabo frame units 3, and further remove the stones restrained within the sabo frame unit 3 and the adjacent sabo frames. Since an open sabo dam is formed by the gaps between the units 3, effects such as the ability to constantly reduce the force of a debris flow can be obtained.
第１図および第２図はこの発明の第１実施例に
係るオープン型鋼製砂防堰堤を示すものであつ
て、第１図は斜視図、第２図は正面図である。第
３図はこの発明の第１実施例において用いられる
鋼製砂防枠ユニツトの斜視図である。第４図およ
び第５図はこの発明の第２実施例に係るオープン
型鋼製砂防堰堤を示すものであつて、第４図は斜
視図、第５図は正面図である。第６図はこの発明
の第２実施例において用いられる鋼製砂防枠ユニ
ツトの斜視図である。
図において、１は鋼製支柱、２は鋼製連結部
材、３は鋼製砂防枠ユニツト、４は河床基盤であ
る。
1 and 2 show an open type steel sabo dam according to a first embodiment of the present invention, with FIG. 1 being a perspective view and FIG. 2 being a front view. FIG. 3 is a perspective view of the steel erosion control frame unit used in the first embodiment of the present invention. 4 and 5 show an open steel sabo dam according to a second embodiment of the present invention, with FIG. 4 being a perspective view and FIG. 5 being a front view. FIG. 6 is a perspective view of a steel erosion control frame unit used in a second embodiment of the present invention. In the figure, 1 is a steel column, 2 is a steel connecting member, 3 is a steel erosion control frame unit, and 4 is a riverbed foundation.
Claims (1)
いように間隔をおいて配置されると共に、各支柱
１がそれぞれ支柱長手方向に間隔をおいて配置さ
れた複数の鋼製連結部材２を介して連結されて、
立体構造の鋼製砂防枠ユニツト３が構成され、複
数の砂防枠ユニツト３が、河川内において河川横
断方向に間隔をおいて配置されると共に、河床基
盤４に固定されていることを特徴とするオープン
型鋼製砂防堰堤。1 Three or more steel columns 1 are arranged at intervals so that they are not lined up on the same plane, and each column 1 has a plurality of steel connecting members 2 arranged at intervals in the longitudinal direction of the columns. connected via
A steel sabo frame unit 3 having a three-dimensional structure is constructed, and a plurality of sabo frame units 3 are arranged at intervals in the river cross direction in the river, and are fixed to a river bed foundation 4. Open type steel sabo dam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12387487A JPS63289106A (en) | 1987-05-22 | 1987-05-22 | Open-type steel check dam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12387487A JPS63289106A (en) | 1987-05-22 | 1987-05-22 | Open-type steel check dam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63289106A JPS63289106A (en) | 1988-11-25 |
| JPH052050B2 true JPH052050B2 (en) | 1993-01-11 |
Family
ID=14871510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12387487A Granted JPS63289106A (en) | 1987-05-22 | 1987-05-22 | Open-type steel check dam |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63289106A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07102545A (en) * | 1993-09-30 | 1995-04-18 | Tsunetaro Iwabuchi | Structure of checkdam |
| JP2006312871A (en) * | 2006-07-13 | 2006-11-16 | Nippon Steel Metal Prod Co Ltd | Steel slit dam |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5822499B2 (en) * | 2011-03-29 | 2015-11-24 | 日鐵住金建材株式会社 | Steel slit dam |
-
1987
- 1987-05-22 JP JP12387487A patent/JPS63289106A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07102545A (en) * | 1993-09-30 | 1995-04-18 | Tsunetaro Iwabuchi | Structure of checkdam |
| JP2006312871A (en) * | 2006-07-13 | 2006-11-16 | Nippon Steel Metal Prod Co Ltd | Steel slit dam |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63289106A (en) | 1988-11-25 |
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