KR20140142522A

KR20140142522A - Noise reduction device and driving pile structure using the noise reduction device

Info

Publication number: KR20140142522A
Application number: KR20130064043A
Authority: KR
Inventors: 김화진
Original assignee: 김화진
Priority date: 2013-06-04
Filing date: 2013-06-04
Publication date: 2014-12-12

Abstract

The present invention relates to a noise reducing material made of a rope of twisted thread with improved toughness and a pile driving structure using the noise reducing material. According to the present invention, if a pile is driven when the noise reducing material made of twisted thread is installed between a pile and a cap, the noise reducing material can minimize loss of hitting energy and solve a problem of damage to a head part of a pile by partly absorbing impact of the driving hammer. The noise reducing material can remarkably reduce hitting sound by reducing vibration generated at the time of hitting, thereby solving a problem of civil complaint caused by the noise. Also, the noise reducing material is more easily manufactured by adding only fiber and, particularly, has a hollow structure to minimize the waste of unnecessary material, thereby remarkably reducing manufacturing costs. Further, the fiber is a natural material, so the noise reducing material is easily discarded after use.

Description

Technical Field [0001] The present invention relates to a hollow noise reduction device for a file hammering, and a file hammering structure using the hollow hammock noise reduction device,

The present invention relates to a hollow noise reducing material for pile driving and a pile driving structure using the same, which can drastically reduce damage to head and sound of a file during pile driving work.

Generally, when building is constructed, the ground is chipped to increase the strength of the ground when the ground is loose. For such climates, designation (grind designation, sand designation, long foundation designation, etc.) Designation, prestressed concrete pile, forced pile, etc.) and deep foundation designation (well basis designation, diving foundation designation, etc.) are utilized.

Among them, pile designation is mainly used. In this method, concrete piles are inserted into the ground to form a retaining structure. At this time, concrete piles are mainly used in the ground by using the piling method.

The pneumatic method includes a falling hammer method in which a hammer is wound up and down according to a driving force to move, a steam hammer method using a steam force, an air hammer method using a compressed air force, a diesel hammer method using a diesel explosive force, There is a hammer method and a vibration hammer method which pushes a pile by putting a hammer on a pile instead of putting it on a pile. Among them, a hydraulic hammer method having a merit that a large hitting power can be obtained and a maneuverability is good and a fuel cost is small Is most commonly used.

However, despite the advantages described above, the hydraulic hammer method is problematic in that the use of the hydraulic hammer in a densely populated area has a great impact noise, causing damages to the pile head due to noise caused by environmental pollution and strike.

Among these problems, noise pollution has a great effect on real life. Therefore, when using the hydraulic hammer method, the noise reduction material such as wood is placed on the upper surface of the pile, the hammering operation is performed while the cap is covered, It is an effort to reduce the noise by wrapping it with cloth, but this also did not significantly reduce noise caused by hanger.

Open No. 10-2005-0108884 (Noise Reduction Material for hanger pile) and No. 10-1222419 (File Striking Head for eccentricity and noise prevention) have been devised to solve the above problems.

The present invention relates to a noise reducing material comprising 10 to 22% by weight of Mn and the remainder being inevitable impurities and Fe and having a martensite structure, However, since it is made of a metal material, the noise reduction rate during the hammering operation is considerably small, and the iron-based vibration-damping alloy is melted at a high temperature (approximately 1650 ° C.) and then rolled, And then heat-treated at 1050 DEG C for 2 hours to complete the disk-shaped noise reduction material. This is a fundamental problem in that the manufacturing cost is inconvenient and difficult and the manufacturing cost is relatively increased.

10-1222419, there is provided a hammer cushion, comprising: a main body; a hammer cushion inserted into the main body; a head cushion positioned under the hammer cushion; and an elastic member provided between the hammer cushion and the head cushion. And an eccentricity preventing device installed at a lower portion of the head cushion. The present invention is advantageous in that it can improve workability due to prevention of head damage and vertical maintenance of a file, but it is difficult to manufacture the file striking head. In addition, there is a problem that the noise reduction rate generated during the hammering operation is considerably small because it is made of a metal material fundamentally. Further, when mounted on a hollow file, a substantial force is not transmitted on the central portion, So that the manufacturing cost is increased.

The present invention was conceived to overcome the above-mentioned problems, and it is an object of the present invention to provide a noise reduction material that can dramatically reduce the head damage and the sound of a pile by buffering an impact during a hammering operation, The present invention has been made to provide a hollow noise reducing material for pile driving which can reduce the manufacturing cost and the manufacturing cost by using the same.

In addition, the present invention provides a hollow noise reducing material for pile driving which can be easily applied even in a construction area where houses and schools are concentrated, by making the noise reduction material sandwich type, and a pile driving structure using the same There is another purpose to try.

According to an aspect of the present invention, there is provided a noise-

And a twisted fiber strand is formed in a hollow plate so as to be able to exhibit a noise reduction function and a buffering function at the top of the file.

Further, in the noise reduction material according to the present invention as described above,

The string is characterized in that a plurality of strings formed by twisting fibers are further twisted to form a thick string having a strong toughness.

According to another aspect of the present invention, there is provided a noise-

A first and a second cushion which are formed by hollow fiber-reinforced plastic strands so as to exhibit noise reduction and cushioning function at the top of the file;

And a cushioning pad provided between the first and second cushions.

The cushioning pad is characterized in that the fiber is compressed into a pad shape.

The first and second cushions are characterized in that a plurality of strands formed by twisting fibers are further twisted into thick strands having high toughness.

According to an aspect of the present invention,

A file hovering structure comprising a noise reduction material placed on an upper surface of a file and a cap covering the noise reduction material and covering the file,

The noise-

And the fibers are twisted and twisted to form a hollow plate.

In addition, in the file hitching structure according to the present invention as described above,

The noise reduction material is characterized in that a plurality of strands formed by twisting fibers are further twisted into a thick strand having high toughness.

According to an aspect of the present invention,

The noise-

A first and a second cushion formed by twisting a fiber strand into a hollow plate;

And a cushioning pad provided between the first and second cushions.

The noise reduction material is manufactured by compressing fibers to form a pad.

The noise reduction material according to the present invention has a remarkably excellent fastness due to the use of twisted fibers made of twisted fibers. In the case where the noise reduction material is installed between the file and the cap, the impact energy is minimized, It is possible to solve the problem of damaging the head of the file by buffering a certain part of the impact of the hitting, and to reduce the vibration caused by the hitting to significantly reduce the sound of the hitting, In addition, since no other materials other than fiber are added, the manufacturing cost is remarkably reduced, and the production cost can be drastically reduced. In particular, since the hollow structure is formed, waste of unnecessary materials can be minimized, Furthermore, since it is a natural material, disposal treatment after use is considerably There is one advantage.

In addition, according to the preferred embodiment of the present invention, in the case of the noise reduction material made of the sandwich type, the buffer pad is compressed more than the first and second cushions relatively more effectively to effectively absorb impact transmitted from the hammering hammer, And the noise caused by the sound can be remarkably lowered. In particular, when used in a construction area where houses and schools are concentrated in the vicinity, there is an advantage that the problem of complaints due to noise can be minimized.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a conceptual diagram of a file hanger structure to which a hollow noise reducing material according to the present invention is applied.
FIG. 2 is a plan view showing a noise reduction member in a hollow file hanger structure according to the present invention. FIG.
3 is a cross-sectional view taken along line A-A 'of FIG. 2;
4 is a view for explaining an embodiment of a pile driving structure to which a hollow noise reducing material according to the present invention is applied.
5 is a sectional view showing another embodiment of the noise attenuating material in the file hitter structure according to the present invention.
FIG. 6 is a perspective view of a shock absorber pad taken separately from the hollow noise reducing material of FIG. 5; FIG.
7 is a view for explaining an embodiment of a file hammering structure to which the hollow noise reducing material of FIG. 5 is applied.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Since the use of the hollow noise reduction material is limited only to the file structure, the file structure will be described together with the structure of the file structure.

1, the file hacker structure according to the present invention includes a hollow noise reduction material 20 and a hollow noise reduction material 20 that are placed on the upper surface of the file 10 and the file 10, 10 so as to reduce the damage of the head 10 of the pile 10 and to reduce the impact sound of the pile hammer H,

The file 10 is a known concrete file. In this embodiment, a PHC file (PHC file) is used, and any other concrete file can be used.

The cap 30 is placed on the pile 10 to prevent the damage of the pile 10 due to hitting of the hammer hammers H while blocking the hollow noise reducing material 20 Member.

In the case of this embodiment, as shown in FIG. 1, the cap 30 opened to the lower side is applied, but this is only one embodiment. For example, It is not preferable to limit the cap to the cap.

FIG. 2 is a plan view showing a hollow noise reduction material separately taken from a file hitter structure according to the present invention, and FIG. 3 is a cross-sectional view taken along line A-A 'of FIG.

2 and 3, the hollow noise reduction material 20 is a member installed between the pile 10 and the cap 30 and absorbs the impact of the pile hammers H, It is a function to reduce the head damage and the sound of the hitting. In the case of this embodiment, it is necessary to note that the twisted fibers are twisted into a hollow plate.

For the sake of reference, the hollow noise reduction material 20 is formed into a disc shape in consideration of the shape of the pile 10. However, the hollow noise reduction material 20 is only one embodiment, .

Here, the fiber refers to a fiber collected from an animal or a plant. In the case of the present embodiment, a fiber harvested from a fruit of a plant is applied, and a fiber having a strong elasticity is applied with a reddish brown color obtained from a coconut shell Respectively.

However, this is merely an example, and various known fibers can be applied as necessary.

The hollow noise reduction material 20 is formed by twisting fibers taken from the crust of a coconut to form a line having a predetermined length, and then spirally winding the line so that a hollow can be formed at the center by using the formed line. And then fixed by various fixing methods so as to maintain the shape of the teeth.

Here, as the fixing method, an adhesive may be applied and fixed to one surface of the hollow noise reduction material 20, or natural oil (for example, coconut oil) may be applied and fixed or fixed using a tackifier. In the present embodiment, as shown in FIG. 2, a cloth such as a nonwoven fabric is punched on one surface and then stitched so as to prevent loosening.

However, this is merely one embodiment, and various other known methods can be applied.

According to the present embodiment, the hollow noise reduction material 20 has a very good fastness because the fibers are twisted. The hollow noise reduction material 20 is inserted into the pile 10 and the cap 30 (H), it is possible to solve the problem of damaging the head of the pile (10) by buffering the impact of the hammering hammer (H) to a certain extent while minimizing the loss of the striking energy. Not only can the vibration occurring during the hitting be damped, but also the hitting sound can be remarkably lowered, so that the noise problem caused by the noise can be solved. Further, since the material other than the fiber is not added, the manufacturing is considerably easy, And furthermore, since it is a natural material, disposal treatment after use is considerably easy.

Particularly, when the pile 10 is hollow, the striking energy of the pile hammer H does not act on the center of the pile 10, so that it is not necessary to make the structure of the noise reduction material 20 solid, Therefore, unnecessary waste of materials can be minimized, and thus the manufacturing cost can be drastically lowered.

The hollow noise reduction material 20 may further include a plurality of strands formed on the strands formed by twisting the fibers so that the hollow noise reduction material 20 may be formed into a thick strand having high toughness by twisting the fibers. The thickness of the hollow noise reduction material 20 can be appropriately adjusted according to the purpose of use, and the side effect of remarkably lowering the breakage rate due to repeated use can be expected. .

FIG. 4 is a view for explaining an embodiment of the file hitching structure according to the present invention. Referring to FIG.

First, with the file 10 installed, the hollow noise reduction material 20 is placed on the upper surface of the pile 10, and then the cap 30 is covered.

As described above, when the hammers H are hammered into the cap 30 in the assembled state, the force transmitted by the hammer H is transmitted to the pile 10 through the hollow noise reducing member 20 In particular, the hollow noise reducing material 20 serves as a buffer to overcome the problem of damaging the head of the pile 10, and the pile 10 is naturally inserted into the ground, The noise is reduced by the noise reduction member 20 and the noise can be significantly reduced. Therefore, it is possible to solve the noise problem (caused by complaints caused by noise pollution).

5 is a cross-sectional view showing another embodiment of the hollow noise reducing material in the file hitter structure according to the present invention. FIG. 6 is a cross-sectional view of the hollow noise reducing material shown in FIG. 5, It is a perspective view that shows the cushioning pads excerpted separately from ashes.

5, the hollow noise reduction member 20 'is composed of a first cushion 21, a second cushion 22, and a cushioning pad 23, and as in the first embodiment, And is installed between the file 10 and the cap 30 to buffer the impact of the hitch hammer H to reduce the head damage and the hitting sound of the file 10. [

It should be noted that, in the case of this embodiment, the hollow noise reducing material 20 'is manufactured as a sandwich type.

The first and second cushions 21 and 22 are formed of a hollow plate in which fibers are twisted and twisted in the same manner as in the first embodiment described above, And a fixed length was formed by using twisted strings. Various types of fixing methods were used to hold the twisted wire in a spiral shape so as to form a hollow at the center.

Here, as the fixing method, an adhesive may be applied and fixed to one surface of the first and second cushions 21 and 22, or may be fixed or fixed using a natural oil (for example, coconut oil) However, in this embodiment, as shown in FIG. 2, a cloth such as a nonwoven fabric is punched on one surface, and then the punch is fixed so as not to be loosened by the punching. In the sandwich type, the first and second cushions 21, (23) are integrally formed so that they are integrally formed.

In the case of this embodiment, the first and second cushions 21 and 22 are formed in a disc shape in consideration of the shape of the pile 10. However, this is only an example, and if necessary, Any number of variations can be made.

In addition, the first and second cushions 21 and 22 may include a plurality of strands formed by twisting fibers, and may be formed into a thick strand having high toughness by twisting the first and second cushions 21 and 22, 22) can be appropriately adjusted according to the purpose of use, and a side effect of remarkably lowering the breakage rate due to repeated use can also be expected.

Referring to FIG. 6, the buffer pad 23 is a member formed by pressing irregularly arranged fibers into a predetermined thickness and then molding the same size as the first and second cushions 21 and 22. In this embodiment, 1 and 2 cushions 21 and 22 so as to buffer the impact of the hinge hammer H and to reduce the head damage and the hitting sound of the pile 10. [

In particular, the buffer pads 23 are also hollow.

According to the present embodiment, the cushion pad 23 can further buffer the impact of the hitch hammer H relative to the first and second cushions 21 and 22.

Therefore, as in the case of the first embodiment, as compared with the case where the hollow noise reduction member 20 is formed as a single unit, the hollow type noise reduction member 20 is formed of the first and second cushions 21 and 22 and the cushioning pad 23, When the noise reduction member 20 'is applied, the shock transmitted from the hammering hammers H can be more effectively buffered, so that damage to the head of the pile 10 and noise caused by the hitting sound can be remarkably reduced.

FIG. 7 is a view for explaining an embodiment of a file pivoting structure to which the noise reducing member of FIG. 5 is applied. Referring to FIG.

First, the hollow noise reduction material 20 'is placed on the upper surface of the pile 10 while the pile 10 is installed, and then the cap 30 is covered.

As described above, when the hammers H are hammered into the cap 30 in the assembled state, the force transmitted by the hammer H is transmitted to the pile 10 through the hollow noise reducing member 20 ' So that the file 10 is naturally inserted into the ground.

Particularly, when the cap 30 is lowered by the hinge hammer H, the hollow noise reduction material 20 'made of a sandwich type is compressed. At this time, It is advantageous in that the impact transmitted from the hammer hocker H is more effectively absorbed by compressing the hammer H relatively more than the cushions 21 and 22 to significantly reduce the noise caused by the head damage and the hitting sound of the pile 10, The hollow noise reducing material 20 'is used in a construction area where houses and schools are concentrated in the surrounding area. Therefore, in case of using the hollow noise reducing material 20' The problem can be minimized.

In the case of this embodiment, a hollow noise reduction material 20, 20 'made in the form of an off-the-shelf product is shown and described, but this is only an example. For example, Depending on the size, it can be easily made into a flute.

Therefore, it can be expected that the method can be effectively used additionally, regardless of the size of the file, as well as being universally usable.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims. .

10: file 20.20 ': noise reduction material 21: first cushion
22: second cushion 23: buffer pad 30: cap
H: Hanging hammer

Claims

Characterized in that a twisted fiber strand is formed in a hollow plate so as to exhibit noise reduction and buffering function at the top of the file.

The method according to claim 1,
The string may be,
Wherein the plurality of strands made of twisted fibers are further twisted to form thick strands having high toughness.

A first and a second cushion which are formed by hollow fiber-reinforced plastic strands so as to exhibit noise reduction and cushioning function at the top of the file;
And a cushioning pad provided between the first and second cushions.

The method of claim 3,
The cushioning pad may include:
Wherein the fiber is compressed into a pad shape.

The method of claim 3,
Wherein the first and second cushions comprise:
Wherein the plurality of strands made of twisted fibers are further twisted to form thick strands having high toughness.

A file hovering structure comprising a noise reduction material placed on an upper surface of a file and a cap covering the noise reduction material and covering the file,
The noise-
Characterized in that the fiber strand structure is formed by twisting the fiber strands into a hollow plate.

The method according to claim 6,
The noise-
Wherein the plurality of strands made of twisted fibers are further twisted to form thick strands having high toughness.

A file hovering structure comprising a noise reduction material placed on an upper surface of a file and a cap covering the noise reduction material and covering the file,
The noise-
A first and a second cushion formed by twisting a fiber strand into a hollow plate;
And a cushioning pad provided between the first and second cushions.

9. The method of claim 8,
The cushioning pad may include:
Wherein the pile structure is formed by compressing fibers to form a pile structure.

9. The method of claim 8,
Wherein the first and second cushions comprise:
Wherein the plurality of strands made of twisted fibers are further twisted to form thick strands having high toughness.