A quick-installation port terminal operation structure with vibration and noise reduction functions

Abstract

The present invention provides a quick-installation port terminal operating structure with vibration reduction and noise reduction functions, comprising a structural body, a cavity is arranged in the structural body, and a water inlet is arranged on the wave-facing side of the structure; a vibration reduction and noise reduction unit is arranged in the cavity of the structural body, and the vibration reduction and noise reduction unit is detachably arranged inside the cavity. Beneficial effects of the present invention: a quick-installation port terminal operating structure with vibration reduction and noise reduction functions can effectively improve the noise problem in the terminal operating structure, and placing prefabricated square piers and prefabricated slopes in the wave-breaking chamber can effectively reduce the waves in the wave-breaking chamber. The waves will break after passing through the prefabricated square piers, consuming a lot of energy. At the same time, there is vortex shedding at the corners of the square piers, which is also a consumption of energy. In addition, the roughness of the square piers and slope surfaces is increased, and the wave dissipation function is further enhanced.

Description

Technical Field

[0001] The invention belongs to the field of water transport engineering, and in particular relates to a quick-installation port terminal operation structure with vibration reduction and noise reduction functions. Background Art

[0002] With the development of society, noise has received more and more attention. Noise pollution, water pollution and air pollution have been listed as the three major pollutions. From the perspective of physics, noise is the sound produced by the sound-emitting body when it vibrates irregularly. From this perspective, noise can be divided into: gas dynamic noise, mechanical noise, and electromagnetic noise. From a physiological point of view, noise is the sound that interferes with people's normal rest, life, study and work, as well as the sound that disturbs people. Generally speaking, noise is generated by the vibration of objects. In water conservancy projects, water noise mainly includes: noise generated by water turbulence, noise generated by the interaction between water flow and buildings, and cavitation noise generated by the vibration and rupture of bubbles in water flow. These noises ultimately constitute noise pollution and endanger the physiological and mental health of the human body.

[0003] In recent years, the open hole structure has been widely used in the actual construction of various dock operation structures in ports due to its good wave-breaking effect and cost-saving advantages. However, due to the existence of the wave-breaking chamber in the structure and its location directly below the dock operation surface, the interaction of incident waves and reflected waves and the impact of waves on the wave-breaking chamber will generate noise, affecting the effective operation of the dock and the rest of the personnel. The most common noise level at the dock is 70 decibels, and the audio limit that humans can bear is 93-97 decibels. The dock operation surface is above the wave-breaking chamber, and the office area and living area are behind it. The noise will have a harmful effect on the work and rest of the port and dock staff, so it is necessary to reduce the noise of the wave-breaking chamber of the port and dock operation structure. Summary of the invention

[0004] In view of this, the present invention aims to propose a quick-installation port terminal operation structure with vibration reduction and noise reduction functions to solve the shortcomings of the above-mentioned problems.

[0005] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0006] A quick-installation port terminal operation structure with vibration and noise reduction functions, comprising a structure body, a cavity is arranged in the structure body, and a water inlet is arranged on one side of the wave-facing surface of the structure;

[0007] A vibration reduction and noise reduction unit is arranged in the cavity of the structural body, and the vibration reduction and noise reduction unit is detachably arranged inside the cavity.

[0008] Furthermore, the vibration reduction and noise reduction unit includes a square pier, which is detachably arranged at the bottom of the cavity.

[0009] Furthermore, a rough structure is provided on the surface of the square pier to increase the roughness of the surface of the square pier.

[0010] Furthermore, the rough structure includes protrusions arranged on the surface of the square pier.

[0011] Furthermore, the vibration reduction and noise reduction unit includes a slope, and the slope is detachably arranged at the bottom of the cavity.

[0012] Furthermore, the slope surface is provided with a rough structure to increase the roughness of the slope surface.

[0013] Further, the rough structure includes protrusions arranged on the wave-facing side of the slope.

[0014] Furthermore, a slope is arranged behind the square pier.

[0015] Compared with the prior art, the quick-installation port terminal operation structure with vibration and noise reduction functions described in the present invention has the following beneficial effects:

[0016] The quick-installation port terminal operating structure with vibration reduction and noise reduction functions described in the present invention can effectively improve the noise problem in the terminal operating structure. Placing prefabricated square piers and prefabricated slopes in the wave-breaking chamber can effectively reduce the waves in the wave-breaking pool. After the waves pass through the prefabricated square piers, the waves will be broken, consuming a large amount of energy. At the same time, there will be vortex shedding at the corners of the square piers, which is also a consumption of energy. In addition, the roughness of the square piers and the slope surfaces is increased, and the wave dissipation function is further enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the internal structure of a quick-installation port terminal operation structure with vibration and noise reduction functions according to an embodiment of the present invention;

[0019] Figure 2 It is a three-dimensional schematic diagram of an overall quick-installation port terminal operation structure with vibration and noise reduction functions according to an embodiment of the present invention;

[0020] Figure 3 It is a three-dimensional schematic diagram of the entire interior of a quick-installation port terminal operation structure with vibration and noise reduction functions according to an embodiment of the present invention;

[0021] Figure 4 A schematic diagram of the wave-breaking mechanism of a prefabricated square pier for a quick-installation port terminal operation structure with vibration and noise reduction functions according to an embodiment of the present invention;

[0022] Figure 4-1 It is a partial schematic diagram of the wave-breaking mechanism of a prefabricated square pier of a quick-installation port terminal operation structure with vibration and noise reduction functions according to an embodiment of the present invention;

[0023] Figure 4-2 It is a partial schematic diagram 2 of the wave-breaking mechanism of a prefabricated square pier of a quick-installation port terminal operation structure with vibration and noise reduction functions according to an embodiment of the present invention;

[0024] Figure 4-3 It is a partial schematic diagram of the wave-breaking mechanism of a prefabricated square pier of a quick-installation port terminal operation structure with vibration and noise reduction functions according to an embodiment of the present invention;

[0025] Figure 4-4 It is a partial schematic diagram of the wave-breaking mechanism of a prefabricated square pier of a quick-installation port terminal operation structure with vibration and noise reduction functions according to an embodiment of the present invention;

[0026] Figure 5 A schematic diagram of the wave-reduction effect after a prefabricated vibration and noise reduction unit is added to a quick-installation port terminal operation structure with vibration and noise reduction functions according to an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of energy dissipation results after a prefabricated vibration and noise reduction unit is added to a quick-installation port terminal operating structure with vibration and noise reduction functions according to an embodiment of the present invention.

[0028] Description of reference numerals:

[0029] 1-Structural body; 2-Cavity; 3-Water inlet; 4-Square pier; 5-Protrusion; 6-Slope. DETAILED DESCRIPTION

[0030] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0031] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0032] like Figures 1 to 3 As shown, a quick-installation port terminal operation structure with vibration reduction and noise reduction function comprises a structure body 1, a cavity 2 is arranged in the structure body 1, and a water inlet 3 is arranged on one side of the wave-facing surface of the structure;

[0033] A vibration reduction and noise reduction unit is arranged in the cavity 2 of the structural body 1 , and the vibration reduction and noise reduction unit is detachably arranged inside the cavity 2 .

[0034] The vibration reduction and noise reduction unit comprises a square pier 4 which is detachably arranged at the bottom of the cavity 2 .

[0035] The surface of the square pier 4 is provided with a rough structure for increasing the roughness of the surface of the square pier 4 .

[0036] The rough structure includes protrusions 5 arranged on the surface of the square pier 4 .

[0037] The vibration reduction and noise reduction unit comprises a slope 6 , which is detachably arranged at the bottom of the cavity 2 .

[0038] The surface of the slope 6 is provided with a rough structure for increasing the roughness of the surface of the slope 6 .

[0039] The rough structure comprises protrusions 5 arranged on the wave-facing side of the slope 6 .

[0040] The slope is set behind the square pier.

[0041] In order to reduce the noise hazard of the port terminal operating structure in the form of an opening, the present invention provides a port terminal operating structure with a simple structure, which can be quickly installed and has the function of reducing vibration and noise.

[0042] The technical solution of the present invention is to control and reduce the harm of noise from the sound source. Sound source control is the most fundamental and effective method of noise control. At present, there are two ways to control the sound source. One is to improve the structure, improve the processing and assembly quality, and reduce the sound power radiated by the sound source; the other is to use damping materials to reduce noise. The technical solution of the present invention mainly adopts the first way. When the waves in front of the dock enter the structure through the openings, some prefabricated components are arranged inside the structure to break the waves and consume the wave energy, thereby reducing the noise of the waves hitting the wave-breaking chamber. The specific solution is to place some prefabricated square piers 4 with rough surfaces in the front of the structure when the structure is installed, and place prefabricated slopes 6 with rough surfaces in the back.

[0043] The advantages and positive effects of the invention are as follows: the adoption of the technical solution can effectively improve the noise problem in the dock operation structure; the placement of prefabricated square piers and prefabricated slopes in the wave-breaking chamber can effectively reduce the waves in the wave-breaking chamber; the waves will break after passing through the prefabricated square piers, consuming a large amount of energy; at the same time, there will be vortex shedding at the corners of the square piers, which is also a consumption of energy; and the roughness of the square piers and slope surfaces is increased, so that the wave dissipation function is further enhanced. Figure 4 The wave-breaking mechanism of the prefabricated square pier within a wave cycle obtained through numerical calculation. It can be seen that there is obvious vortex shedding at the corners of the square pier, which will lead to a large amount of energy dissipation, thereby reducing the wave height in the wave-breaking chamber.

[0044] Figure 5 In order to increase the wave height variation in the wave-absorbing chamber behind the prefabricated vibration and noise reduction unit, Figure 6In order to increase the energy dissipation change in the wave-breaking chamber after the prefabricated vibration and noise reduction unit, L in the horizontal axis is the top width of the prefabricated square pier, λs is the wavelength of the incident wave, and the vertical axis is the change result of the wave height, indicating that as the incident wavelength becomes smaller, the wave-breaking effect becomes better and better, and the greater the energy dissipation, the smaller the noise in the structure. In the figure, d is the height of the top of the square pier from the water surface, and D is the water depth in the wave-breaking chamber. It can be seen that the wave height can be reduced at any height of the top of the square pier from the water surface, and the closer the top of the square pier is to the water surface, the better the wave reduction effect, and the better the control of the noise in the structure.

[0045] The square piers and slopes in the structure are all prefabricated, with accurate size control and fast construction speed. They can be widely promoted to the construction of various wharf operating structures, killing two birds with one stone.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A quick-installation port terminal operation structure with vibration and noise reduction functions, characterized in that: It comprises a structural body (1), a cavity (2) is arranged in the structural body (1), and a water inlet (3) is arranged on one side of the wave-facing surface of the structure; A vibration reduction and noise reduction unit is arranged in the cavity (2) of the structural body (1), and the vibration reduction and noise reduction unit is detachably arranged in the cavity (2); The vibration reduction and noise reduction unit comprises a square pier (4), which is detachably arranged at the bottom of the cavity (2); a rough structure is arranged on the surface of the square pier (4) to increase the roughness of the surface of the square pier (4); The rough structure includes protrusions (5) arranged on the surface of the square pier (4); The vibration reduction and noise reduction unit comprises a slope (6), and the slope (6) is detachably arranged at the bottom of the cavity (2); The surface of the slope (6) is provided with a rough structure for increasing the roughness of the surface of the slope (6); The rough structure includes a protrusion (5) arranged on the wave-facing side of the slope (6); The slope is set behind the square pier; The square pier (4) and the slope (6) are both prefabricated; The waves will break after passing through the prefabricated square piers, consuming a lot of energy. At the same time, vortices will fall off at the corners of the square piers, which is also a consumption of energy.

Images