Manufacturing method of hydraulic model

Abstract

The invention relates to a manufacturing method of a hydraulic model, belonging to the technical field of hydraulic engineering. The IPC (International Patent Classification) of the hydraulic model is E02B 1 / 02. The manufacturing method is suitable for manufacturing the hydraulic model with a steep side slope or higher topographic height difference and adopts a special topographic manufacturing instrument comprising four parts, i.e. a cross beam, an elevation control system, a support frame and a riverway section morphologic line. When the hydraulic model is manufactured, the manufacturing method comprises the following steps of: firstly determining a coordinate origin of a coordinate system above a riverway section; controlling the starting point distance of the riverway section along a scale processed in a horizontal direction by taking the cross beam as a horizontal datum line; accurately controlling the relative model elevation of each elevation control point along a vertical scale in such a way that each elevation control rod of the elevation control system can move up and down or left and right; and enabling the riverway section morphologic line to directly sequentially penetrate through a small hole positioned on the top end of each elevation control rod so as to form a complete riverway section. Thus constructors can manufacture the riverway section so as to manufacture an integral entity model.

Description

Technical field: [0001] The invention relates to a method for making a hydraulic model, 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 p...

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Problems solved by technology

[0003] 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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