CN113756309A - An air curtain structure and construction method for reducing construction noise of steel pipe piles - Google Patents
An air curtain structure and construction method for reducing construction noise of steel pipe piles Download PDFInfo
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- CN113756309A CN113756309A CN202010490231.0A CN202010490231A CN113756309A CN 113756309 A CN113756309 A CN 113756309A CN 202010490231 A CN202010490231 A CN 202010490231A CN 113756309 A CN113756309 A CN 113756309A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 51
- 239000010959 steel Substances 0.000 title claims abstract description 51
- 238000010276 construction Methods 0.000 title claims abstract description 40
- 241000251468 Actinopterygii Species 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 13
- 230000002093 peripheral effect Effects 0.000 claims abstract description 8
- 230000008569 process Effects 0.000 claims abstract description 7
- 230000002238 attenuated effect Effects 0.000 claims abstract description 5
- 238000002955 isolation Methods 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 29
- 230000000694 effects Effects 0.000 description 6
- 230000006872 improvement Effects 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000002356 single layer Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
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- 230000000007 visual effect Effects 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
- E02D13/005—Sound absorbing accessories in piling
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Abstract
本发明提供了一种用于降低钢管桩施工噪音的空气帷幕结构及施工方法，空气帷幕结构包括：绕钢管桩周壁设置的第一层环状空气帷幕、绕第一层环状空气帷幕周壁设置的第二层环状空气帷幕，第一层环状空气帷幕进而第二层环状空气帷幕之间具有间隙；钢管桩位于第一层环状空气帷幕内部，第一层环状空气帷幕和第二层环状空气帷幕将钢管桩和海洋鱼类之间形成隔离保护区。本发明的方法是：在钢管桩和海洋鱼类之间设置空气帷幕，在打桩过程中所产生的噪声会被空气帷幕所阻拦，使噪音衰减直到消失。本发明在钢管桩与海洋鱼类之间形成了隔离保护区域，这样就无法对封闭区外的海洋鱼类造成噪音污染，解决了在桥梁施工作业时产生的噪声污染。
The invention provides an air curtain structure and a construction method for reducing the construction noise of steel pipe piles. The air curtain structure comprises: a first layer of annular air curtains arranged around the peripheral wall of the steel pipe piles; The second layer of annular air curtain is arranged on the peripheral wall, and there is a gap between the first layer of annular air curtain and the second layer of annular air curtain; the steel pipe pile is located inside the first layer of annular air curtain, and the first layer of annular air curtain The curtain and the second annular air curtain form an isolated protection zone between the steel pipe piles and the marine fish. The method of the invention is as follows: an air curtain is arranged between the steel pipe pile and the marine fish, and the noise generated during the piling process will be blocked by the air curtain, so that the noise is attenuated until it disappears. The invention forms an isolation protection area between the steel pipe pile and the marine fish, so that noise pollution cannot be caused to the marine fish outside the closed area, and the noise pollution generated during the bridge construction operation is solved.
Description
Technical Field
The invention relates to the field of civil engineering construction, in particular to an air curtain structure for reducing construction noise of a steel pipe pile and a construction method.
Background
The traditional steel pipe pile sinking method generally has two types: the construction is carried out by adopting a piling ship and arranging a temporary guide device on an engineering ship. The two piling construction modes have the following disadvantages: the influence of noise generated by offshore construction operation on marine fishes is caused, and the noise generated in the offshore steel pipe pile inserting and driving construction process accounts for most of noise pollution, so that reasonable construction measures must be taken to protect the marine ecological environment.
With the continuous development of science and technology, the environmental protection consciousness and the animal protection consciousness of people are continuously enhanced, and new materials are developed, and more new technologies and new materials are applied to the noise reduction engineering of marine construction.
The existing technology is that an air curtain generator (a cuboid steel framework or a triangular truss structure welded by section steel or the like) is arranged at the periphery of a steel pipe pile to form an air curtain in water so as to reduce noise caused by inserting and driving the steel pipe pile, and a single-layer air curtain is used for shielding noise in inserting and driving construction of the steel pipe pile, so that the noise reduction effect is relatively limited.
Disclosure of Invention
The invention provides an air curtain structure for reducing construction noise of a steel pipe pile and a construction method, wherein double-layer air curtain shielding noise is applied to inserting and driving construction of the steel pipe pile, so that noise generated in construction is reduced better, and marine ecological environment and sustainable utilization of fishery resources are protected.
The technical scheme for realizing the purpose of the invention is as follows:
a method for reducing the construction noise of a steel pipe pile is characterized in that a double-layer air curtain is arranged between the steel pipe pile and marine fishes, and the noise generated in the piling process can be blocked by the double-layer air curtain to be attenuated until the noise disappears. According to the invention, an isolation protection area is formed between the steel pipe pile (in the closed area) and the marine fishes (outside the closed area), so that the noise pollution to the marine fishes outside the closed area cannot be caused, and the noise pollution generated in the bridge construction operation is solved.
An air curtain structure for reducing construction noise of a steel pipe pile, comprising: a first layer of annular air curtain arranged around the peripheral wall of the steel pipe pile and a second layer of annular air curtain arranged around the peripheral wall of the first layer of annular air curtain, wherein a gap is formed between the first layer of annular air curtain and the second layer of annular air curtain;
the steel pipe piles are located inside the first layer of annular air curtain, and the steel pipe piles and marine fishes are isolated and protected by the first layer of annular air curtain and the second layer of annular air curtain.
As a further improvement of the present invention, an apparatus for forming a double annular air curtain comprises:
the conveying channel conveys air to the inner cavities of the first turntable and the second turntable;
the end face of the first turntable is provided with a plurality of first air holes, air in the transport channel is sprayed out through the first air holes, and the first turntable rotates to enable the air sprayed out from the first air holes to form a first layer of annular air curtain;
the first turntable is sleeved in the inner cavity of the second turntable, a plurality of second air holes are formed in the end face of the second turntable, air in the transportation channel is sprayed out through the second air holes, and the second turntable rotates to enable the air sprayed out through the second air holes to form a second layer of annular air curtain;
and the driving device drives the first turntable and the second turntable to rotate.
As a further improvement of the present invention, the transportation channels have at least one group, and each group of transportation channels includes: the vertical pipe parallel to the steel pipe pile and the transverse pipe extending from the bottom end of the vertical pipe to the center of the steel pipe pile are communicated with the first rotary table and the second rotary table, and the airflow enters the first rotary table and the second rotary table after passing through the vertical pipe and the transverse pipe and is discharged from the first air hole and the second air hole.
As a further improvement of the invention, the transportation channels are provided with a plurality of groups, and the transportation channels are uniformly distributed around the center of the steel pipe pile in 360 degrees.
As a further improvement of the invention, the transverse tube extends slightly beyond the inner wall of the first rotary disk.
As a further improvement of the present invention, the driving device is a motor, the motor is located in a region formed by an outer wall of the first rotating disk and an inner wall of the second rotating disk, a gear is arranged on an output shaft of the motor, and annular racks engaged with the gear are respectively arranged on the outer wall of the first rotating disk and the inner wall of the second rotating disk.
As a further improvement of the invention, pipe joints are arranged between the transverse pipe and the first rotating disc and between the transverse pipe and the second rotating disc, one end of each pipe joint is communicated with the transverse pipe, and the other end of each pipe joint is inserted into an inner cavity of the first rotating disc or the second rotating disc.
Compared with the prior art, the invention has the beneficial effects that:
the air curtain is used for shielding noise in inserting and driving construction of the steel pipe piles, and compared with the traditional structure which does not adopt the air curtain and a single-layer air curtain structure, the double-layer air curtain designed by the invention better reduces the noise generated in the construction, and protects the sustainable utilization of marine ecological environment and fishery resources.
Drawings
FIG. 1 is a schematic elevation view of an air curtain construction;
FIG. 2 is a view taken along line A of FIG. 1;
FIG. 3 is a top view of an air curtain construction;
fig. 4 is a schematic view of a grid of bubbles.
In the figure, 01, a steel pipe pile; 1. a vertical tube; 2. a transverse tube; 3. a pipe joint; 4. a first annular tube; 5. a seal ring; 6. a motor; 7. a gear; 8. a second annular tube; 9. a circular hole.
Detailed Description
The present invention is described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that functional, methodological, or structural equivalents or substitutions made by these embodiments are within the scope of the present invention.
In the description of the present embodiments, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to a number of indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
The terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
Example 1:
the embodiment discloses a method for reducing construction noise of a steel pipe pile, wherein an air curtain is arranged between the steel pipe pile and marine fishes, and noise generated in the piling process can be blocked by the air curtain to be attenuated until the noise disappears. In the embodiment, an isolation protection area is formed between the steel pipe pile (in the closed area) and the marine fishes (outside the closed area), so that the noise pollution to the marine fishes outside the closed area cannot be caused, and the noise pollution generated during the bridge construction operation is solved.
Based on the construction method, the air curtain structure for reducing the construction noise of the steel pipe pile of the embodiment comprises the following steps: a first layer of annular air curtain arranged around the peripheral wall of the steel pipe pile, and a second layer of annular air curtain arranged around the peripheral wall of the first layer of annular air curtain, wherein a gap is formed between the first layer of annular air curtain and the second layer of annular air curtain; the steel pipe piles are located inside the first layer of annular air curtain, and the steel pipe piles and marine fishes are isolated and protected by the first layer of annular air curtain and the second layer of annular air curtain.
In this embodiment, an apparatus for forming a double annular air curtain includes: the conveying channel conveys air to inner cavities of the first rotary table and the second rotary table; the end face of the first turntable is provided with a plurality of first air holes, air in the transportation channel is sprayed out through the first air holes, and the first turntable rotates to enable the air sprayed out from the first air holes to form a first layer of annular air curtain; the first rotary disc is sleeved in an inner cavity of the second rotary disc, a plurality of second air holes are formed in the end face of the second rotary disc, air in the transportation channel is sprayed out through the second air holes, and the second rotary disc rotates to enable the air sprayed out through the second air holes to form a second layer of annular air curtain; the first turntable and the second turntable are driven to rotate.
Preferably, the transport channels have at least one group, each group comprising: be on a parallel with the standpipe of steel-pipe pile setting, violently manage with first carousel and second carousel intercommunication from the standpipe bottom to the central violently pipe that extends of steel-pipe pile, violently the pipe, the air current gets into first carousel and second carousel after through the standpipe, violently managing to from first gas pocket and second gas pocket discharge. Of course, the transport channels are provided with a plurality of groups, and the transport channels are uniformly distributed around the center of the steel pipe pile by 360 degrees.
In this embodiment, the extension length of the cross tube slightly exceeds the inner wall of the first rotating disc. Preferably, the driving device is a motor, the motor is located in an area formed by the outer wall of the first rotating disc and the inner wall of the second rotating disc, a gear is arranged on an output shaft of the motor, and annular racks meshed with the gear are respectively arranged on the outer wall of the first rotating disc and the inner wall of the second rotating disc. And pipe joints are arranged between the optimized transverse pipe and the first rotary table and between the optimized transverse pipe and the second rotary table, one end of each pipe joint is communicated with the transverse pipe, and the other end of each pipe joint is inserted into an inner cavity of the first rotary table or the second rotary table.
Example 2:
on the basis of the scheme disclosed in the embodiment 1, the embodiment provides an air curtain structure for reducing the construction noise of a steel pipe pile and a construction method thereof: as shown in fig. 1-4, a horizontal pipe 2 is arranged at the lower end of a vertical pipe 1, symmetrically arranged along a steel pipe pile 01,
the pipe joint 3 is arranged at the upper end of the transverse pipe 2, and air pressure sequentially enters the vertical pipe 1, the transverse pipe 2, the pipe joint 3 and the round hole 9 of the first annular pipe 4 and the round hole 9 of the second annular pipe 8 according to the arrow direction and is discharged. Violently be provided with motor 6 on pipe 2, motor 6 output shaft is provided with the gear, first ring pipe 4 is provided with the rack respectively with the outer wall of second ring pipe 8, the cooperation of gear and rack, and motor 6's output shaft respectively with first ring pipe 4 and the cooperation of second ring pipe 8 rack, starter motor 6 drives the gear, the gear will drive first ring pipe 4 and second ring pipe 8 and rotate, and first ring pipe 4 rotates opposite with second ring pipe 8, so will form a double-deck protection bubble wall at first ring pipe 4 and second ring pipe 8's round hole export combustion gas bubble. In the inserting and driving construction process of the steel pipe pile, the double-layer protection bubble wall well isolates the steel pipe pile and marine fishes, an isolation protection area is formed between the steel pipe pile and the marine fishes, noise generated in the driving process can be blocked by the double-layer protection bubble wall, the noise is continuously attenuated until the noise disappears in the driving construction, and the noise pollution to the marine fishes in the bridge construction operation is greatly reduced.
A water quality isolation protective layer can be formed between a pipe joint and a ring pipe under water through the action of water, the protective layer can effectively protect the phenomenon of rotation resistance caused by friction, the phenomenon that wheels in life slip when meeting water is the same life principle phenomenon, the phenomenon that the wheels in life are in a positive pressure state, the wheels are in an exhaust state at any time, and even if the phenomenon that bubbles are generated due to the fact that gaps exist at any point, the phenomenon that the rotation is not influenced can be realized.
Importantly, the method comprises the following steps: after the first annular pipe 4 and the second annular pipe 8 are respectively started to rotate, the sprayed bubbles form an inclined series effect, the inner layer and the outer layer are opposite in rotation direction, so that an alternating latticed graph 4 effect can be formed, the density degree of the latticed graph determines the noise reduction effect, namely the size of the discharged air pressure and the rotating speed of the first annular pipe 4 and the second annular pipe 8 are determined, and similarly to clothes weaving, the smaller the latticed openings are, the warmer the more. The density of the bubble curtain determines the effect of blocking noise, and is determined by the number of holes (pitch) per unit length of the ring pipe, the pressure of the compressed air, the size (aperture) of the air outlet, and the like. The interaction of the air pressure and the hole diameter distance has larger influence on blocking noise, the visual effects of the bubble curtains with different pressures are different, when the pressure is small, the bubbles are sparse and rise slowly, and a plurality of bubble-free areas are arranged among bubble flows; when the pressure is high, the bubbles are dense, the rising is fast, and gaps among bubble flows are small.
The serial effect of this embodiment on tilt is explained as follows: when parachute jumping personnel of the airplane jump down one by one, the phenomenon that the overall arrangement state among team members is inclined when falling to the ground in the air is the same as the phenomenon, but the phenomenon is just bubbling on one jump down and one net.
The beneficial effects of this embodiment: compared with the traditional structure which does not adopt an air curtain structure and a single-layer air curtain structure, the double-layer air curtain designed by the embodiment better reduces the noise generated in the construction and protects the sustainable utilization of marine ecological environment and fishery resources.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. A method for reducing construction noise of a steel pipe pile is characterized in that a double-layer air curtain is arranged between the steel pipe pile and marine fishes, and noise generated in the piling process is blocked by the double-layer air curtain and is attenuated until the noise disappears.
2. The utility model provides an air curtain structure for reducing steel-pipe pile construction noise which characterized in that includes: a first layer of annular air curtain arranged around the peripheral wall of the steel pipe pile and a second layer of annular air curtain arranged around the peripheral wall of the first layer of annular air curtain, wherein a gap is formed between the first layer of annular air curtain and the second layer of annular air curtain;
the steel pipe piles are located inside the first layer of annular air curtain, and the steel pipe piles and marine fishes are isolated and protected by the first layer of annular air curtain and the second layer of annular air curtain.
3. The air curtain structure of claim 2, wherein the means for forming a double annular air curtain includes:
the conveying channel conveys air to the inner cavities of the first turntable and the second turntable;
the end face of the first turntable is provided with a plurality of first air holes, air in the transport channel is sprayed out through the first air holes, and the first turntable rotates to enable the air sprayed out from the first air holes to form a first layer of annular air curtain;
the first turntable is sleeved in the inner cavity of the second turntable, a plurality of second air holes are formed in the end face of the second turntable, air in the transportation channel is sprayed out through the second air holes, and the second turntable rotates to enable the air sprayed out through the second air holes to form a second layer of annular air curtain;
and the driving device drives the first turntable and the second turntable to rotate.
4. The air curtain structure of claim 3, wherein the transport passages are at least one group, each group of transport passages including: the vertical pipe parallel to the steel pipe pile and the transverse pipe extending from the bottom end of the vertical pipe to the center of the steel pipe pile are communicated with the first rotary table and the second rotary table, and the airflow enters the first rotary table and the second rotary table after passing through the vertical pipe and the transverse pipe and is discharged from the first air hole and the second air hole.
5. The air curtain structure of claim 4, wherein the transport passages are in groups, and the groups of transport passages are evenly distributed around the center of the steel pipe pile by 360 °.
6. The air curtain structure of claim 4, wherein the cross tube extends slightly beyond an inner wall of the first turntable.
7. The air curtain structure of claim 3, wherein the driving device is a motor, the motor is located in a region formed by an outer wall of the first rotating disk and an inner wall of the second rotating disk, a gear is arranged on an output shaft of the motor, and annular racks engaged with the gear are respectively arranged on the outer wall of the first rotating disk and the inner wall of the second rotating disk.
8. The air curtain structure of claim 4, wherein a pipe joint is arranged between the transverse pipe and the first rotating disc and between the transverse pipe and the second rotating disc, one end of the pipe joint is communicated with the transverse pipe, and the other end of the pipe joint is inserted into an inner cavity of the first rotating disc or the second rotating disc.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010490231.0A CN113756309B (en) | 2020-06-02 | 2020-06-02 | An air curtain structure and construction method for reducing noise in steel pipe pile construction |
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| CN202010490231.0A CN113756309B (en) | 2020-06-02 | 2020-06-02 | An air curtain structure and construction method for reducing noise in steel pipe pile construction |
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| CN113756309A true CN113756309A (en) | 2021-12-07 |
| CN113756309B CN113756309B (en) | 2024-12-06 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115289311A (en) * | 2022-03-10 | 2022-11-04 | 中交四航局第二工程有限公司 | Energy dissipation and noise reduction device for underwater vibration rammer and construction method thereof |
| CN118854917A (en) * | 2024-09-29 | 2024-10-29 | 江苏龙源振华海洋工程有限公司 | A pile driving noise reduction device for an ocean pile driving system |
| CN118993357A (en) * | 2024-09-13 | 2024-11-22 | 江西省水利科学院(江西省大坝安全管理中心、江西省水资源管理中心) | Acoustic-bacterial-insect-fish serial algae removal and turbidity reduction lake and reservoir eutrophication water pollution treatment system |
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| CN118993357A (en) * | 2024-09-13 | 2024-11-22 | 江西省水利科学院(江西省大坝安全管理中心、江西省水资源管理中心) | Acoustic-bacterial-insect-fish serial algae removal and turbidity reduction lake and reservoir eutrophication water pollution treatment system |
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| CN113756309B (en) | 2024-12-06 |
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