This site intends to present technical proposals on hydraulic steel structures such as hydraulic gates,
intake and discharge equipments, silt/sand dischargers etc. which are provided harbour entrances, docks
and locks along waterways, or dams, weirs, floodgates and power stations on rivers, or irrigation systems.
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PROPOSAL１ 【STORM GATE・・TORSION TYPE】
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Engineering Data Downloading
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１． Introduction
The information intends to offer engineering data which may help in planning, designing, construction at workshops and sites, operation, maintenance etc. of super large torsion type gates when they are used as the primary closure system for a surge barrier
２． Gate types of a super large torsion type gate
Table 2.-1 shows gate operation directions and gate type names.
Column ①: It shows gate operation directions. Parallel movements are classified into flow direction, horizontal direction which is at right angles to the flow direction and vertical direction which is at right angles to other directions and rotational movements are classified into around flow axis, around horizontal axis which is at right angles to the flow axis and around vertical axis which is at right angles to other axis.
Column ②: It shows possibility of a super large torsion type gate. The line 1 and the line 4 are impossible that is because a gate of the line １ is very difficult to operate and gate operation around flow axis of the line ４ is not realistic for a gate having a few hundred meters width.
Column ③: It shows gate type names of possible super large torsion type gates. The possible types are the flap type, the rolling type, the swing type and the emerging type.
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３． Names of the engineering data
Table 3.-1 shows file names and names of the offered engineering data.
First column: It shows gate types. They are flap, rolling, swing and emerging as shown on the column ③ of Table 2.-1.
Second column: It shows the data classification. Classification basis are engineering report, technical proposal, technical subject and patentability. All technical subjects which directly concern the torsion type structure are included in the rolling type.
Third column: It shows file names. Downloading of the engineering data will be made according to the file names.
Forth column: It shows the engineering data names.
The super large torsion type gate could be in flap type, rolling type, swing type or emerging type and the biggest trouble of them may be sediment, which will be resolved according to existing technologies.
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４． Downloading of the engineering data
The engineering data will be downloaded on a browser screen of Chrome etc. according to a click file names shown below. Numbers on the file names are common to Japanese version. The number 15 is a content of this page.
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