Device for making hydraulic model

Abstract

The invention relates to a device for making a hydraulic model, and belongs to the technical field of hydraulic engineering. The device has an international patent classification (IPC) number of E02B 1 / 02, is suitable for making a hydraulic model with a steep side slope or a large terrain height difference, and consists of a beam, an elevation control system, a bracket and a river cross section form control line. When a hydraulic engineering physical model is made, a coordinate origin of a coordinate system is determined above a river cross section; the beam is taken as a horizontal baseline, and scales processed along the horizontal direction can control the starting distance of the river cross section; each elevation control rod in the elevation control system can move up and down, and left and right, and the model relative elevation of each elevation control point is accurately controlled through scales along the vertical direction; the river cross section form control line directly passes through small holes at the tip of the elevation control rods in turn to form a complete river cross section; and construction personnel can make the channel cross section accordingly and then make the whole physical model.

Description

Technical field: [0001] The invention relates to a hydraulic model making device, which belongs to the technical field of hydraulic engineering, and its IPC international patent classification number is E02B 1 / 02. Background technique: [0002] The Xiaolangdi Reservoir Area Model is an important part of the "Model Yellow River". The whole model is from Xiaolangdi Dam to Sanmenxia Hydrological Station. The prototype reservoir section is about 125km long and the elevation is from 155m to 285m. The model includes 100% of the original storage capacity of the main stream and nearly 95% of the tributary storage capacity in the reservoir area. According to the selected geometric scale (horizontal scale 300, vertical scale 60), the length of the model is about 440m, the average width of the model is about 15m, and the height is about 2.4m. The model is divided into two parts: moving bed and fixed bed. The initial model construction is mainly the production of the fixed bed part of...

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Problems solved by technology

When making the fixed-bed model in the initial stage of the Xiaolangdi reservoir area, a series of problems were encountered by adopting the usual cross-section template topography technology: because the Xiaolangdi reservoir is a typical canyon-type reservoir, the slope of the reservoir area is very steep, and after the abnormal treatment of the model, The slope becomes steeper. The slope of most of the reservoir sections is above 70°, and some of the reservoir sections are even close to 90°. As a result, the model backfill soil often collapses during the process of embedding and taking out the formwork of the model section. The density and accuracy of terrain production are difficult to meet the requirements, and often have to be reworked, increasing the workload, resulting in work delays, and it is difficult to complete the production of the fixed bed part of the model with quality and quantity

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