CN113203546A

CN113203546A - Measuring device for wave dissipation performance of straight wall type permeable dike

Info

Publication number: CN113203546A
Application number: CN202110611905.2A
Authority: CN
Inventors: 李雪艳; 修春仪; 张振华; 于珍; 曲红红
Original assignee: Ludong University
Current assignee: Ludong University
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2021-08-03

Abstract

The invention discloses a device for measuring the wave-breaking performance of a straight-wall type permeable dike, which is characterized by comprising three parts, namely a straight-wall type permeable dike, a wave height measuring instrument fixing and adjusting device and wave height measuring instrument data collecting and processing equipment; the straight wall type open dike is formed by fixedly connecting an upright square caisson, a back plate, a partition plate and an L-shaped connecting plate thereof; the wave height measuring instrument fixing and adjusting device is used for accurately fixing the wave height measuring instrument and adjusting the horizontal position and the vertical height of the wave height measuring instrument; the wave height measuring instrument data collecting and processing equipment is used for processing and outputting and displaying the data collected by the wave height measuring instrument; the device has the advantages of stable structure, strong operability and high experimental precision.

Description

Measuring device for wave dissipation performance of straight wall type permeable dike

Technical Field

The invention relates to the technical field of structural water power experimental devices, in particular to a device for measuring the wave-breaking performance of a straight-wall type permeable dike, which utilizes the structural characteristics of the device and utilizes a measuring instrument to test the wave-breaking performance of the device for reducing the influence of power factors when the device interacts with waves; is suitable for areas with poor seabed conditions, and has little influence on marine ecological environment.

Background

Traditional gravity type breakwater has can not permeate water flow, it is poor to cover regional internal water dynamic condition, the inside and outside water exchange of harbor district can only go on in entrance department, the velocity of flow when leading to near the entrance tidal wave of rising and falling is great, be unfavorable for boats and ships to pass, lead to the silt siltation, negative effects such as water pollution, and the mankind carries out the operation activity at sea and needs go on in the waters of relative stationary, the empty formula breakwater cost is lower and do benefit to the inside and outside water exchange of harbor district, the entrance velocity of flow when can effectively reduce the tidal wave of rising and falling, reach boats and ships normal operating standard, little to marine ecological environment influence. In addition, the permeable structure can also reduce the reflection phenomenon of the breakwater, and avoid the adverse effect on the stability of the breakwater body because the incident wave and the reflected wave are superposed to form larger standing waves. Is a novel breakwater which meets the requirements of marine ecological civilized construction. Accordingly, the open breakwater structure is now increasingly used in the breakwater construction. However, the permeable structure can increase the wave transmittance, so that part of waves can continuously propagate through the embankment body to influence the mooring condition in the sheltered water area; and the same structure has different transmission and reflection characteristics to waves with different wave heights and periods, thereby causing adverse effects on the berthing conditions of ships in the harbor area. Therefore, the development of the novel permeable breakwater with good wave dissipation effect and small structural stress has great significance for promoting the construction of high-quality green ports.

At present, the existing measuring instrument has the problems of unmatched detection of wave-breaking performance of a square box type comb-type open dam, high price, large interference from external environment and the like.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a measuring device for the wave-breaking performance of a straight wall type permeable dike; the method mainly solves the problems of reducing the energy of waves, reducing the foundation stress and the wave load in front of a breakwater, saving construction materials, promoting the exchange of water bodies inside and outside a harbor area, improving the wave dissipation performance, the wave energy conversion efficiency, the survival capacity under extreme waves and the like of the device.

The technical scheme provided by the invention is as follows: a measuring device for the wave-breaking performance of a straight-wall type permeable dike is characterized by comprising three parts, namely a straight-wall type permeable dike, a wave height measuring instrument fixing and adjusting device and wave height measuring instrument data collecting and processing equipment;

the straight wall type permeable dike consists of an upright square caisson, a back plate, a partition plate, an L-shaped connecting plate, a connecting hole, a water inlet hole and an air outlet hole; the upper part of the back wave side of the plurality of upright square caissons is connected with the back plate; the middle part of the upright square caisson is provided with a baffle plate, the end part of the baffle plate is connected with the lower end of the back plate, and the baffle plate, the back plate and the back plate form an integrated structure; the bottom of the vertical arc caisson is provided with an L-shaped connecting plate, and a connecting hole is reserved on the L-shaped connecting plate; the lower part of the wave-facing surface of the upright square caisson is provided with a water inlet hole; the upper part of the upright square caisson, which is close to the back plate, is provided with an air outlet;

the wave height measuring instrument fixing and adjusting device consists of a leveling screw, a thick loop bar, a bidirectional sleeve, a vertical control screw, a thin loop bar, a sleeve, a horizontal control screw, a clamping ring, a wave height measuring instrument and a bracket; the bracket is erected on the top ends of two walls of the water tank in a crossing way, and the bracket is provided with leveling screws; the support is of a vertical structure formed by fixedly connecting a horizontal transverse long rod piece, a vertical longitudinal rod piece and a horizontal longitudinal rod piece, the horizontal longitudinal rod piece at the middle position of the upper end is sleeved with a sleeve, and the horizontal longitudinal rod piece at the lower end is sleeved with a bidirectional sleeve; the lower end of the sleeve is vertically and fixedly connected with a thick sleeve rod; the upper end of the thin sleeve rod is internally sleeved in the thick sleeve rod and penetrates out of the bidirectional sleeve; the bidirectional sleeve is provided with a vertical control screw; the bidirectional sleeve is provided with a horizontal control screw; the clamping ring consists of two arc metal sheets and is fixedly connected to the side surface of the lower end of the thin sleeve rod; the wave height measuring instrument is fixedly arranged in the middle of the clamping ring and is connected with the thin sleeve rod through the clamping ring;

the wave height measuring instrument data collecting and processing equipment is placed on an instrument operation table outside the water tank, is connected with the wave height measuring instrument through a data line, and processes, outputs and displays data collected by the wave height measuring instrument.

Furthermore, the bracket is erected on the top ends of the two walls of the water tank in a crossing manner; the support is a frame structure formed by fixedly connecting 2 horizontal long rod pieces, 2 vertical longitudinal rod pieces and 2 horizontal longitudinal rod pieces, 1 horizontal longitudinal rod piece is fixedly connected among the 2 horizontal long rod pieces, and the sleeve is sleeved on the middle horizontal longitudinal rod piece; the upper ends of the 2 vertical longitudinal rod pieces are fixedly connected to the middle of the horizontal transverse long rod piece, the lower ends of the 2 vertical longitudinal rod pieces are fixedly connected with the 1 horizontal longitudinal rod piece, and the two-way sleeve is sleeved on the horizontal longitudinal rod piece at the lower end of the support; threaded holes are reserved at two ends of the horizontal transverse long rod piece.

Furthermore, the leveling screws are arranged in the reserved threaded holes at the two ends of the horizontal long rod piece, the leveling screws are rotated, the length of the extending screws from the threaded holes is adjusted, and the levelness of the support is adjusted.

The invention has the beneficial effects that 1, according to the specific environment of the laboratory test flume, the top ends of the two walls of the flume are used as supporting wave height measuring instrument fixing and adjusting devices, so that the material is saved, and other resources in a laboratory are not occupied; 2. the wave height measuring instrument fixing and adjusting device can control the movement of the wave height measuring instrument in the horizontal and vertical directions, and the measurable position is flexible and changeable; 3. each part of the whole test device is convenient to disassemble and simple to install, and is very suitable for being used in an experimental water tank; 4. compared with the traditional breakwater, the breakwater saves materials, is light and convenient, is easy to construct, has strong integrity, is independent and organically combined in each part, and can be used for carrying out measurement tests of the vertical arc wall comb type open breakwater wave-breaking performance with different scales according to different experimental water tanks; 5. compared with the traditional permeable dike, the permeable dike has the functions of wave prevention and wave dissipation, can convert wave energy, can prevent a harbor area from being invaded by waves, provides good ship berthing conditions for the harbor area, and can realize ocean wave energy power generation and relieve power supply; 6. is suitable for areas with poor seabed conditions, and has little influence on marine ecological environment.

Drawings

FIG. 1 is a schematic view of an overall apparatus of the present invention;

FIG. 2 is a schematic front view of a straight wall type open dike according to the present invention;

FIG. 3 is a schematic view of the back of a straight wall type clear dike of the present invention;

FIG. 4 is a schematic view of the wave height measuring instrument fixing and adjusting device of the present invention;

fig. 5 is a partial schematic view of the wave height measuring instrument fixing and adjusting device of the present invention.

In the figure: the device comprises a straight wall type permeable dike 1, an upright arc caisson 11, a back plate 12, a partition plate 13, a 14L-shaped connecting plate, a connecting hole 15, a water inlet hole 16, a gas outlet hole 17, a 2 wave height measuring instrument fixing and adjusting device, a leveling screw 21, a thick loop bar 22, a two-way sleeve 23, a vertical control screw 231, a thin loop bar 24, a sleeve 25, a horizontal control screw 251, a clamping ring 26, a 27 wave height measuring instrument, a support 28, a 281 horizontal long rod piece, a 282 vertical longitudinal rod piece, a 283 horizontal longitudinal rod piece and a 3 wave height measuring instrument data collecting and processing device.

Detailed Description

For the purpose of facilitating a further understanding of the contents, features and functions of the present invention, reference is made to the following detailed description taken in conjunction with the accompanying drawings:

as shown in fig. 1, 2, 3, 4 and 5, a device for measuring the wave-breaking performance of a straight-wall type permeable dike comprises a straight-wall type permeable dike 1, a wave height measuring instrument fixing and adjusting device 2 and a wave height measuring instrument data collecting and processing device 3; the used materials are not rusted and have light weight;

the straight wall type through hollow dike 1 consists of an upright square caisson 11, a back plate 12, a partition plate 13, an L-shaped connecting plate 14, a connecting hole 15, a water inlet hole 16 and an air outlet hole 17; the vertical square caissons 11 are multiple in number, and the upper parts of the back wave sides of the vertical square caissons are connected with the back plate 12; the partition plate 13 is arranged in the middle of the upright square caisson 11, and the end part of the partition plate is connected with the lower end of the back plate 12, and the three are connected into an integral structure; the L-shaped connecting plate 14 is welded at the bottom of the vertical arc caisson 11, a connecting hole 15 is reserved, and the vertical wall type permeable dike 1 is embedded and fixed at the bottom of the water tank through the connecting hole 15 to form an integral structure; the lower part of the wave-facing surface of the upright square caisson 11 is provided with a water inlet hole 16, and the top of the upright square caisson 11 close to the back plate 12 is provided with an air outlet hole 17; the air outlet 17 is used for facilitating the functionality of the measuring structure and placing the wave height measuring instrument; the water inlet hole 16 is communicated with the air outlet hole 17 to form an air chamber in order to facilitate the waves entering the vertical square caisson 11 to push the air, and only one outlet of the air outlet hole 17 is reserved;

the wave height measuring instrument fixing and adjusting device 2 consists of a leveling screw 21, a thick loop bar 22, a two-way sleeve 23, a vertical control screw 231, a thin loop bar 24, a sleeve 25, a horizontal control screw 251, a clamping ring 26, a wave height measuring instrument 27 and a bracket 28; erecting a bracket 28 on the top ends of the two walls of the water tank in a crossing manner; the support 28 is a frame structure formed by fixedly connecting 2 horizontal long rod members 281, 2 vertical longitudinal rod members 282 and 2 horizontal longitudinal rod members 283, 1 horizontal longitudinal rod member 283 is fixedly connected among the 2 horizontal long rod members 281, and the sleeve 25 is sleeved on the middle horizontal longitudinal rod member 283; the upper ends of 2 vertical longitudinal rod pieces 282 are fixedly connected with the middle part of the horizontal transverse long rod piece 281, the lower ends are fixedly connected with 1 horizontal longitudinal rod piece 283, and the bidirectional sleeve 23 is sleeved on the horizontal longitudinal rod piece 283 at the lower end of the bracket 28; threaded holes are reserved at two ends of the horizontal transverse long rod piece 281; 4 leveling screws 21 are respectively arranged in threaded holes reserved at two ends of the horizontal long rod piece 281, the leveling screws 21 are rotated, the length of the extension of the adjusting screws 21 from threaded holes is adjusted, and the levelness of the support 28 is adjusted; the thick loop bar 22 is vertically arranged on the vertical longitudinal bar 282 among the 2 horizontal long bar 281, and the thick loop bar 22 and the vertical longitudinal bar 282 are connected by a sleeve 25, so that the horizontal movement is convenient; the upper end of the thin sleeve rod 24 is sleeved in the thick sleeve rod 22 and can stretch out and draw back, and the lower end of the thin sleeve rod passes through the bidirectional sleeve 23; a vertical control screw 231 is arranged on the bidirectional sleeve 23 to control the expansion of the thin sleeve rod 24; a horizontal control screw 251 is arranged on the bidirectional sleeve 23 to control the horizontal displacement of the thick loop bar 22 and the thin loop bar 24; the clamping ring 26 is composed of two arc metal sheets and is welded on the side surface of the lower end of the thin sleeve rod 24, and a bolt hole is reserved at the end head; installing a wave height measuring instrument 27 in the middle of the clamping ring 26, wherein the wave height measuring instrument 27 is connected with the thin sleeve rod 24 through the clamping ring 26, and the height of the wave height measuring instrument 27 changes along with the expansion and contraction of the thin sleeve rod 24;

the wave height measuring instrument data collecting and processing device 3 is placed on a control operation table outside the water tank, is connected with the wave height measuring instrument 27 through a data line, and is used for processing and outputting and displaying data collected by the wave height measuring instrument 27.

The invention relates to a device for measuring the wave-dissipating performance of a straight-wall type permeable dike.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, the present invention is not limited to the above embodiments, which are only illustrative and not restrictive, and those skilled in the art can make various modifications without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A measuring device for the wave-breaking performance of a straight-wall type permeable dike is characterized by comprising a straight-wall type permeable dike (1), a wave height measuring instrument fixing and adjusting device (2) and wave height measuring instrument data collecting and processing equipment (3);

the straight wall type permeable dike (1) consists of an upright square caisson (11), a back plate (12), a partition plate (13), an L-shaped connecting plate (14), a connecting hole (15), a water inlet hole (16) and an air outlet hole (17); the vertical square caissons (11) are multiple, and the upper parts of the back wave sides of the vertical square caissons are connected with the back plate (12); the middle part of the upright square caisson (11) is provided with a clapboard (13), the end part of the clapboard (13) is connected with the lower end of the back plate (12), and the clapboard, the back plate and the back plate form an integrated structure; an L-shaped connecting plate (14) is arranged at the bottom of the upright arc-shaped caisson (11), and a connecting hole (15) is reserved on the L-shaped connecting plate (14); the lower part of the wave-facing surface of the upright square caisson (11) is provided with a water inlet hole (16); the upper part of the upright square caisson (11), which is close to the back plate (12), is provided with an air outlet (17);

the wave height measuring instrument fixing and adjusting device (2) consists of a leveling screw (21), a thick loop bar (22), a two-way sleeve (23), a vertical control screw (231), a thin loop bar (24), a sleeve (25), a horizontal control screw (251), a clamping ring (26), a wave height measuring instrument (27) and a support (28); the bracket (28) is erected on the top ends of two walls of the water tank in a crossing way, and the bracket (28) is provided with a leveling screw (21); the support (28) is a standing structure formed by fixedly connecting a horizontal transverse long rod piece (281), a vertical longitudinal rod piece (282) and a horizontal longitudinal rod piece (283), the horizontal longitudinal rod piece (283) at the middle position of the upper end is sleeved with a sleeve (25), and the horizontal longitudinal rod piece (283) at the lower end is sleeved with a bidirectional sleeve (23); the lower end of the sleeve (25) is vertically fixedly connected with a thick loop bar (22); the upper end of the thin sleeve rod (24) is internally sleeved in the thick sleeve rod (22) and penetrates out of the bidirectional sleeve (23); a vertical control screw (231) is arranged on the bidirectional sleeve (23); a horizontal control screw (251) is arranged on the bidirectional sleeve (23); the clamping ring (26) consists of two arc metal sheets and is fixedly connected to the side surface of the lower end of the thin loop bar (24); the wave height measuring instrument (27) is fixedly arranged in the middle of the clamping ring (26), and the wave height measuring instrument (27) is connected with the thin sleeve rod (24) through the clamping ring (26);

the wave height measuring instrument data collecting and processing equipment (3) is placed on an instrument operation table outside the water tank, is connected with the wave height measuring instrument (27) through a data line, and processes, outputs and displays data collected by the wave height measuring instrument (27).

2. The device for measuring the wave-breaking performance of the straight-wall type openwall dam according to claim 1, wherein the bracket (28) is erected on the top ends of the two walls of the water tank in a crossing manner; the support (28) is a frame structure formed by fixedly connecting 2 horizontal long rod pieces (281), 2 vertical longitudinal rod pieces (282) and 2 horizontal longitudinal rod pieces (283), 1 horizontal longitudinal rod piece (283) is fixedly connected among the 2 horizontal long rod pieces (281), and the sleeve (25) is sleeved on the middle horizontal longitudinal rod piece (283); the upper ends of 2 vertical longitudinal rod pieces (282) are fixedly connected with the middle part of the horizontal long rod piece (281), the lower ends of the 2 vertical longitudinal rod pieces are fixedly connected with 1 horizontal longitudinal rod piece (283), and the horizontal longitudinal rod piece (283) at the lower end of the support (28) is sleeved with the bidirectional sleeve (23); threaded holes are reserved at both ends of the horizontal transverse long rod piece (281).

3. The device for measuring the wave-breaking performance of the straight-wall type openwork embankment according to claim 1, wherein the leveling screws (21) are installed in threaded holes reserved at two ends of the horizontal transverse long rod member (281), the leveling screws (21) are rotated, the length of the extension of the adjusting screws (21) from the threaded holes is adjusted, and the levelness of the support (28) is adjusted.