A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
INSTALLATION FORMWORK OF RIVERBED BLOCK
To provide an installation formwork for manufacturing a riverbed block which is provided at a downstream part of an artificial structure such as a weir, which can shift a rapid flow to a tranquil flow in a short section and can prevent an outflow of a riverbed even when a downstream water level is lower than a water depth requiring a hydraulic jump in a flood, and which can also prevent a hooking of a flowing wood and the like.SOLUTION: It is configured as an installation formwork (15) of a riverbed block (1) made of precast concrete with a predetermined shape. The riverbed block (1) forms a hemispherical protrusion (4) with a predetermined size on an upper face thereof. When a plurality of riverbed blocks (1) is laid, a plurality of protrusions (4) forms a riverbed in a prescribed section. In this invention, a hemispherical recessed portion (18) for forming the protrusion (4) is provided in the installation formwork (15). While the recessed portion (18) faces downwardly, when concrete is installed in the installation formwork (15), the riverbed block (1) can be manufactured.SELECTED DRAWING: Figure 1
【課題】堰等の人工構造物の下流に設けられて、洪水時の跳水必要水深より下流水位が低い状態であっても射流を短区間で常流に遷移させることができ河床の流出を防止できると共に流木等の引っかかりも防止できる河床ブロックを製造するための、打設用型枠を提供する。【解決手段】所定の形状のプレキャストコンクリート製の河床ブロック（１）の打設用型枠（１５）として構成する。河床ブロック（１）はその上面に所定大きさの半球状の凸部（４）を形成する。河床ブロック（１）を複数個敷き詰めると、複数個の凸部（４）から河床が所定区間形成されるようになっている。本発明においては、打設用型枠（１５）に凸部（４）を形成するための半球状の凹部（１８）を設ける。この凹部（１８）を下向きにして打設用型枠（１５）にコンクリートを打設すると河床ブロック（１）が製造できるように構成する。【選択図】 図１
INSTALLATION FORMWORK OF RIVERBED BLOCK
To provide an installation formwork for manufacturing a riverbed block which is provided at a downstream part of an artificial structure such as a weir, which can shift a rapid flow to a tranquil flow in a short section and can prevent an outflow of a riverbed even when a downstream water level is lower than a water depth requiring a hydraulic jump in a flood, and which can also prevent a hooking of a flowing wood and the like.SOLUTION: It is configured as an installation formwork (15) of a riverbed block (1) made of precast concrete with a predetermined shape. The riverbed block (1) forms a hemispherical protrusion (4) with a predetermined size on an upper face thereof. When a plurality of riverbed blocks (1) is laid, a plurality of protrusions (4) forms a riverbed in a prescribed section. In this invention, a hemispherical recessed portion (18) for forming the protrusion (4) is provided in the installation formwork (15). While the recessed portion (18) faces downwardly, when concrete is installed in the installation formwork (15), the riverbed block (1) can be manufactured.SELECTED DRAWING: Figure 1
【課題】堰等の人工構造物の下流に設けられて、洪水時の跳水必要水深より下流水位が低い状態であっても射流を短区間で常流に遷移させることができ河床の流出を防止できると共に流木等の引っかかりも防止できる河床ブロックを製造するための、打設用型枠を提供する。【解決手段】所定の形状のプレキャストコンクリート製の河床ブロック（１）の打設用型枠（１５）として構成する。河床ブロック（１）はその上面に所定大きさの半球状の凸部（４）を形成する。河床ブロック（１）を複数個敷き詰めると、複数個の凸部（４）から河床が所定区間形成されるようになっている。本発明においては、打設用型枠（１５）に凸部（４）を形成するための半球状の凹部（１８）を設ける。この凹部（１８）を下向きにして打設用型枠（１５）にコンクリートを打設すると河床ブロック（１）が製造できるように構成する。【選択図】 図１
INSTALLATION FORMWORK OF RIVERBED BLOCK
河床ブロックの打設用型枠
SUGANUMA SHINKICHI (author) / TANAKA NOBUSHI (author)
2021-01-14
Patent
Electronic Resource
Japanese
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
/
B28B
Formgeben von Ton oder anderen keramischen Stoffzusammensetzungen, Schlacke oder von Mischungen, die zementartiges Material enthalten, z.B. Putzmörtel
,
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
FORMWORK DEVICE AND FORMWORK AUTOMATIC INSTALLATION SYSTEM
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Building block structure for ecological hydraulic riverbed
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