CN103898864B - Hydraulic model test pin-connected panel terrain simulation device - Google Patents

Abstract

The invention discloses a kind of hydraulic model test pin-connected panel terrain simulation device, comprise terrain simulation support, the top of terrain simulation support is provided with rib net layer, felt layers and water barrier from bottom to top successively; The structure of terrain simulation support, comprise the some adjustable seats being arranged on simulated domain, connected between the bottom of neighboring tunable bearing by crossbeam, rib net layer is arranged on the top of all adjustable seats.The present invention is used in the terrain simulation of hydraulic model test, under the condition ensureing model accuracy, can complete the simulation arrangements of landform fast and efficiently, and can carry out assembled dismounting, recycling.

Description

Assembled Terrain Simulation Device for Hydraulic Model Test

technical field

The invention relates to the technical field of hydraulic models, in particular to a device for simulating complex terrain.

Background technique

Water conservancy projects are widely valued because of their large scale and serious disasters caused by accidents. People continue to strengthen the research and exploration of water conservancy projects. At present, hydraulic model test is the most important research method for hydraulic engineering research. Model tests have recognized practical significance and scientific value. For example, hydraulic model tests designed according to specific similarity criteria can preview or replay various complex debris flow and water flow phenomena in reality, so as to test the reliability and accuracy of the design scheme. The purpose of performance, optimization of engineering layout and body shape.

Water conservancy projects are generally built in mountainous and hilly areas with complex terrain conditions. The traditional method of making model terrain is to first lay out sufficiently dense characteristic terrain points in the model area, and then fill the model with solid materials such as sand, cement or bricks to achieve the effect of terrain undulations. After the solid material is filled to a certain height, it is necessary to manually plaster the filling material with cement mortar to make the surface of the model a continuous terrain; when plastering the surface, it is necessary to use a level to monitor the ground elevation in real time to ensure the accuracy of terrain production. This method for making terrain models is time-consuming, laborious, complicated and inefficient. In addition, after the test is completed, the model needs to be dismantled. Since these filling materials cannot be reused, a large amount of solid materials need to be processed, resulting in a huge waste of resources.

Contents of the invention

The technical problem to be solved by the present invention is to provide an assembled terrain simulation device, which can quickly and efficiently complete the terrain simulation layout under the condition of ensuring the accuracy of the model, and can be assembled, disassembled and reused.

In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:

The hydraulic model test assembled terrain simulation device includes a terrain simulation bracket, and the top of the terrain simulation bracket is sequentially installed with a reinforcement mesh layer, a felt layer and a waterproof layer; Adjustable supports, the lower parts of adjacent adjustable supports are connected by beams, and the reinforcement mesh layer is installed on the top of all adjustable supports;

The adjustable support includes a telescopic sleeve with a chassis, and the top of the telescopic sleeve is connected with an adjustable top seat through a support column; the adjustable top seat includes a flat top seat and a vertical adjustable top seat bottom surface. Connecting plate; the top of the supporting column is provided with a groove for inserting the connecting plate and transversely running through the top of the supporting column, and the connecting plate is positioned in the groove by matching positioning bolts and nuts; the crossbeam is connected to the adjacent Between the telescopic sleeves of the adjustable supports, the reinforcement mesh layer is installed on the upper end surfaces of the flat top seats of all the adjustable supports.

The improvement of the adjustable support in the present invention lies in that the support arms on both sides of the groove of the supporting column are symmetrically provided with reinforcement bolts for tightening the positioning bolts along the direction of the groove.

The improvement of the adjustable support in the present invention lies in that: the bottom end of the support column is screwed to the top end of the telescopic sleeve.

A further improvement of the adjustable support in the present invention is that: the telescopic sleeve includes at least two sleeves that are nested in each other, and the outer wall of the lower sleeve is provided with jacking wires for positioning the upper sleeve.

The improvement of the adjustable support in the present invention lies in that: the flat top seat is a circular flat plate structure, and there are several through holes evenly distributed around the periphery of the circular flat top seat for fixing the reinforcement mesh layer.

Owing to having adopted above-mentioned technical scheme, the technical progress that the present invention obtains is:

The invention builds a terrain simulation bracket through an assembled installation method, and then installs a reinforcement mesh layer, a felt layer and a waterproof layer to prevent water leakage on the bracket to support the upper object, which improves the modeling speed and realizes mechanized production for the hydraulic model test. Transform professional model terrain production into an easy-to-operate public model. In addition, when simulating the terrain, the present invention can roughly simulate the valleys, slopes, and trends of the terrain by adjusting the arrangement density, height, and direction of the adjustable supports, and then conduct hydraulic tests on the terrain, which is very convenient. After the test is completed, it can be dismantled in turn. Not only does there not exist solid waste, but it can also be reused, realizing the maximization of resource utilization and zero pollution discharge.

The adjustable support used in the present invention has high flexibility and maneuverability, and can adapt to any terrain conditions. By rotating the direction of the adjustable top seat, the trend and slope of any terrain can be simulated. The method is simple and flexible; it is matched with the adjustable top seat The special telescopic sleeve can accurately simulate the terrain elevation, which reduces the human error of artificial cement plastering in the traditional method, and can achieve the purpose of simulating terrain height changes by adjusting the telescopic sleeve. The reinforcement bolts arranged on the support arms on both sides of the support column groove are used to tighten the positioning bolts to ensure the stability of the adjustable top seat. The support column and the telescopic sleeve are connected by thread, so that the adjustable top seat can rotate 360 degrees horizontally. The flat-plate top seat is set as a circular flat-shaped structure combined with through-holes arranged around it to facilitate connection and fixation with the reinforcement mesh layer during use.

Description of drawings

Fig. 1 is a schematic structural diagram of the terrain simulation bracket of the present invention.

Fig. 2 is a structural schematic diagram of the adjustable support of the present invention.

Among them: 1. Chassis, 2. Telescopic sleeve, 3. Support column, 31. Support arm, 4. Adjustable top seat, 41. Connecting plate, 42. Through hole, 43. Flat top seat, 5. Locating bolt , 6. Reinforcement bolts, 7. Top wire, 8. Beam, 9. Adjustable support.

detailed description

Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

A hydraulic model test assembled terrain simulation device, including a terrain simulation bracket, the top of the terrain simulation bracket is sequentially installed with a reinforcement mesh layer, a felt layer and a waterproof layer; the structure of the terrain simulation bracket is shown in Figure 1, It includes a number of adjustable supports 9 installed in the simulation area, the lower parts of adjacent adjustable supports are connected by beams 8, and the reinforcement mesh layer is installed on the top of all adjustable supports.

The structure of the adjustable support in the present invention is shown in FIG. 2 . Including chassis 1, telescopic sleeve 2, support column 3 and adjustable top seat 4; chassis 1 is welded on the bottom end of the telescopic sleeve and arranged perpendicular to the telescopic sleeve; support column 3 is threaded on the top of the telescopic sleeve 2 , the adjustable top seat 4 is installed on the support column 3.

The adjustable top seat 4 includes a flat top seat 43 and a connecting plate 41, and the connecting plate 41 is vertically arranged on the bottom surface of the adjustable top seat. The flat plate top seat 43 in the present invention is a circular flat plate structure, and the periphery of the circular flat plate top seat is evenly distributed with several through holes 42 for fixing the reinforcement mesh layer. Of course, the shape of the flat top seat can also be a flat structure of other shapes such as a square.

The top of the supporting column 3 is provided with a groove, and the groove is arranged transversely through the top of the supporting column for inserting the connecting plate 41 . The connecting plate 41 is positioned in the groove by the matched positioning bolt 5 and the nut, and the bottom of the connecting plate is provided with a via hole for fitting the positioning bolt, and the connecting plate and the positioning bolt are installed in an interference fit mode to ensure that the connecting plate There will be no relative displacement between it and the positioning bolt. Positioning bolt 5 vertical groove direction passes through and connects in the support arm of groove both sides, stretches out the other end of support arm and is equipped with anti-slip buckle nut. The support arm 31 of the support column is also symmetrically provided with reinforcement bolts 6 in accordance with the direction of the groove, which are used to tighten the positioning bolts and prevent the adjustable top seat fitted with the positioning bolts from rotating under force when the positioning bolts are under force, which will affect the slope of the terrain. setting.

The telescopic sleeve in this embodiment includes two sleeves that are nested with each other, and the outer wall of the lower sleeve is provided with a top wire 7 for positioning the upper sleeve. Certainly also can be that multi-section sleeve is mutually socketed.

When the present invention is used to make a terrain model, the model area is firstly divided into several horizontal and vertical orthogonal grids in the laboratory according to the actual terrain height and trend, and the grid wiring is carried out on the ground. Where the terrain is flat, the grid is sparse, and where the terrain is steep, the grid is dense.

Secondly, find out the elevation value of each grid node on the topographic map, install the adjustable support at the grid node, and adjust the length of the telescopic sleeve to the corresponding terrain elevation according to the height of each node; The topographic direction of each grid node is measured on the topographic map, and the direction of the adjustable top seat is adjusted according to the topographical direction to make it match the topography; the crossbeam can be installed between the adjacent adjustable supports with a determined height. The adjustable support is connected as a terrain simulation support of an integral structure.

In the process of adjusting the direction of the adjustable top seat, the angle adjustment of the adjustable top seat in the vertical direction is realized by rotating the positioning pin shaft, and the positioning pin shaft and the connecting plate of the adjustable top seat are fixed and locked on the support column with anti-slip buckle nuts Above; the angle adjustment of the adjustable top seat in the horizontal direction is adjusted through the threaded connection position of the telescopic sleeve and the support column.

Finally, the reinforced mesh layer, felt layer and waterproof layer are laid sequentially from bottom to top on the stable terrain simulation bracket. The reinforced mesh layer is installed on the adjustable top seat of the adjustable support in the terrain simulation bracket through matching bolts and nuts. On the top, matching bolts and nuts are connected in series in the through holes to connect the flat top seat and the reinforcement mesh layer together.

On the constructed invention, hydraulic model test work can be carried out.

After the test is completed, the present invention can be disassembled sequentially and reused for model tests on other terrains.

Claims (5)

1. hydraulic model test pin-connected panel terrain simulation device, is characterized in that: comprise terrain simulation support, the top of terrain simulation support is provided with rib net layer, felt layers and water barrier from bottom to top successively;

Described terrain simulation support comprises the some adjustable seats (9) being arranged on simulated domain, and connected by crossbeam (8) between the bottom of neighboring tunable bearing, described rib net layer is arranged on the top of all adjustable seats;

Described adjustable seats comprises the extension sleeve (2) of band chassis (1), and the top of extension sleeve (2) is connected with adjustable footstock (4) by support post (3); Described adjustable footstock (4) comprises the web joint (41) that plate footstock (43) is arranged with vertical adjustable footstock bottom face; The top of described support post (3) offers and inserts web joint (41) and the groove laterally running through support post top, and described web joint (41) is located in a groove by bolt (5) equipped mutually and nut;

Described crossbeam is connected between the extension sleeve of neighboring tunable bearing, and rib net layer is arranged on plate footstock (43) upper surface of all adjustable seats.

2. hydraulic model test pin-connected panel terrain simulation device according to claim 1, is characterized in that: the support arm (31) of described support post groove both sides is complied with groove direction and be symmetrically arranged with and add fixing bolt (6) for what hold out against bolt.

3. hydraulic model test pin-connected panel terrain simulation device according to claim 1, is characterized in that: the bottom of described support post is threaded with the top of extension sleeve (2).

4. hydraulic model test pin-connected panel terrain simulation device according to claim 1, is characterized in that: described extension sleeve comprises the sleeve that at least two joints are socketed mutually, the sleeve outer wall below being positioned at is provided with the jackscrew (7) for locating upper square socket.

5. hydraulic model test pin-connected panel terrain simulation device according to claim 1, is characterized in that: described plate footstock (43) is circular flat plate structure, and the periphery of circular dull and stereotyped footstock is even is furnished with some through holes for fixing rib net layer (42).