KR20230084677A - The method of soil barrier construction using a diamond model - Google Patents

Abstract

The present invention relates to an earth retaining construction method using a diamond shape, which enables a steel plate to be easily inserted between diamond piles, and allows a clamping part of a vibrating hammer to firmly grasp an upper part of the steel plate. To this end, a diamond pile inserted into the ground at a regular interval for earth retaining construction when excavating the ground for new building construction or pipeline reclamation construction comprises: an elongated steel plate with a certain width; an angle welded to a front side and a rear side of the steel plate; and a pair of reinforcing plates provided in an upper portion of the steel plate.

Description

The method of soil barrier construction using a diamond model}

The present invention relates to a retaining construction method using a diamond model used when constructing various buildings or performing earth retaining work for pipeline construction, and more particularly, the clamping unit of a vibrating hammer mounted on the tip of an excavator is a diamond model pile and It is an earth retaining construction method using a diamond shape that can firmly grip steel plates, easily insert wing-type steel plates or flat iron plates between diamond-shaped piles, and easily pull out steel plates embedded in the ground after construction is completed. it's about

When constructing new buildings or excavating water and sewage pipes for reclamation and replacement work, earth retaining work is performed to support the earth pressure of the excavated ground and prevent the outflow of groundwater.

As the earth retaining method described above, earth plate method, CIP method, SCW method and the like are known.

Among them, as shown in FIG. 1, in the soil plate method, H beam piles 1 are inserted into the ground at regular intervals, and a plurality of earth plates 2 are stacked between H beam piles 1 adjacent to each other. excavate the ground

The earth plate construction method described above has the advantage that the construction method is relatively simple and economical.

However, since the conventional earth plate 2 described above is usually made of wooden boards and has a short service life, and has a structure in which plates of a certain width are laminated, there is a problem in that groundwater leaks between the laminated earth plates 2.

Accordingly, there is a disadvantage in that it is difficult to use in the case of deeply excavating the ground or in construction requiring perfect order. In addition, in the soil plate method, the construction period is delayed because a plurality of earth plates must be inserted and stacked one by one,

There is a problem that the ground behind this structure is difficult to stabilize and the ground may subside or collapse.

In order to solve the above problems, as shown in FIG. 2, the angle 3 is assembled with bolts to the web of the H beam pile 1, and the gap between the angle 3 and the H beam flange A method of inserting an iron plate 4 between them is also used.

According to the above-described iron retaining plate 4, there is an advantage that it can support high earth pressure and can use the retaining iron plate semi-permanently.

However, the conventional earth retaining method shown in FIG. 2 has the following problems.

First, it is difficult to firmly grip the upper part of the iron plate 4 with the clamping part C of the vibratory hammer (see FIG. 7). Second, it is difficult to balance left and right by gripping the upper part of the iron plate 4 with the clamping part C of the vibratory hammer.

If the left and right balance is not balanced during the insertion operation of the iron plate 4, the iron plate 4 tilts to one side, making it difficult to insert the iron plate 4, and this problem is further aggravated when the width of the iron plate 4 is wide.

In order to solve the above problem, the center line may be marked on the iron plate 4 so that the center can be easily found, but this center line is covered with soil over time and is difficult to visually check.

Third, it takes a lot of time to remove the steel plate embedded in the ground after the construction is completed.

On the other hand, a method of continuously assembling circular steel pipe files by providing a connecting member outside the circular steel pipe instead of the H beam file 1 has also been proposed.

However, the circular steel pipe pile connection method described above has a problem in that separate equipment must be used because it is difficult to grip the steel pipe with the flat clamping part of the vibrating hammer (usually called 'vibro hammer') mounted on the tip of the excavator.

In particular, there is a disadvantage in that it takes a lot of time to pull out the steel pipe piles embedded in the ground after the construction is completed.

And the CIP (Cast In Place Pile) method is a method of drilling the ground with an auger machine, inserting a reinforcing bar net or H-beam into the hole, pouring concrete, and then digging.

Since the above-mentioned CIP method forms a solid concrete wall, it has the advantage of high water order effect and no ground subsidence due to excavation, but has the disadvantage of requiring expensive equipment and taking a lot of time.

In addition, the SCW (Soil Cement Wall) method is similar to the CIP method, and is a method of continuously forming a cement wall with a 3-axis auger machine.

The SCW method also has a problem in that expensive equipment is required and construction costs are high.

The present invention is to solve the above problems of the prior art, and an object of the present invention is to make it easy to insert the iron plate between the diamond-shaped files.

Another object of the present invention is to enable the clamping part of the vibratory hammer to firmly grip the upper part of the iron plate. Another object of the present invention is to maintain the left and right balance of the iron plate when the clamping part of the vibrating hammer grips and lifts the iron plate.

is to make it possible

Another object of the present invention is to be able to easily grip and pull out piles and iron plates embedded in the ground after construction is completed.

In order to achieve the above object, the rhombic pile according to the present invention is a rhombic pile inserted into the ground at regular intervals to perform earth retaining work when excavating the ground for new building construction or pipeline reclamation work, It is characterized in that it includes a long steel plate having a width, an angle welded to each center of both sides of the steel plate, and a pair of reinforcing plates provided on top of the steel plate.

In addition, the reinforcing plate is characterized in that a welding hole is formed in the center to be welded to both sides of the upper surface of the steel plate, respectively.

In addition, the steel plate is characterized by protruding from both ends of the angle so that the wings of the wing-shaped iron plate are fitted.

In addition, a pair of auxiliary plates are welded to either side of either side of the angle in a direction parallel to the steel plate, so that the flat iron plate is inserted into the gap between the auxiliary plate and the steel plate.

In addition, the earth retaining method using a diamond-shaped pile and a wing-shaped steel plate for earth retaining construction, (a) assembling a gripping jig in the upper center of the wing-shaped steel plate having wings on both sides (S10), (b) mounted on an excavator After holding the reinforcing plate of the diamond-shaped pile having a steel plate with the clamping part of the vibratory hammer, inserting the diamond-shaped pile into the ground (S20), (c) After the step S20, to the clamping part of the vibratory hammer After gripping the jig for gripping the wing-shaped iron plate, it is characterized in that it comprises a step (S30) of inserting the wings of the wing-shaped iron plate into the steel plates of the rhombic piles adjacent to each other.

In addition, an arc-shaped first rounding portion is formed at the lower portion of the wing portion provided on both side surfaces of the wing-shaped iron plate, and an arc-shaped second rounding portion is formed at both lower corner portions of the wing-shaped iron plate.

In addition, the gripping jig assembled to the wing-shaped iron plate includes a bolt assembly part, a gripping part provided on the upper part of the bolt assembly part to hold the hammer clamping part, and a horizontal part extending horizontally from the top of the gripping part. It is composed of a pair of members and is characterized in that it is assembled by bolts and nuts through a through hole formed on the upper part of the wing-shaped iron plate.

In addition, the gripping jig assembled to the wing-shaped iron plate is composed of a pair of members including a gripping part for gripping the hammer clamping part and a horizontal part extending horizontally from the top of the gripping part, formed on the gripping part. It is characterized in that each is welded to the upper center of the wing-shaped iron plate by a welding hole.

In addition, the earth retaining method using a diamond-shaped pile and a flat iron plate for earth retaining construction is: (a) assembling a gripping jig in the upper center of the flat steel plate (S40), (b) a steel as a clamping part of a vibrating hammer mounted on the tip of an excavator After gripping the reinforcing plate of the diamond-shaped pile having a plate and auxiliary plate, inserting the diamond-shaped pile into the ground (S50), (c) after the step S50, the flat iron plate with the clamping part of the vibratory hammer After gripping the gripping jig, it is characterized in that it comprises a step (S60) of inserting both sides of the flat iron plate into the gap between the steel plate and the auxiliary plate of the rhombic pile adjacent to each other.

According to the present invention, by forming an arc-shaped inclined portion on both sides of the lower portion of the wing formed on the wing-shaped iron plate, the iron plate can be easily inserted between the files.

This has the effect of reducing equipment usage costs and shortening the construction period.

In addition, when the clamping part of the vibrating hammer lifts the iron plate, the iron plate maintains left and right balance by the gripping jig accurately assembled at the center point of the iron plate.

Accordingly, there is an effect that the work of inserting the iron plate between the files is very simple.

In addition, the clamping part of the vibratory hammer can firmly grip the holding jig by the horizontal part of the holding jig assembled to the steel plate.

This has the effect of preventing the iron plate from being separated from the clamping part even when strong vibration is applied to the iron plate.

In addition, since the clamping part of the hammer has a structure that hangs on the horizontal part of the gripping jig and rises, there is an effect that the iron plate embedded in the ground can be easily pulled out after the construction is completed.

In addition, since the vibrating hammer mounted on the tip of the excavator can perform both pile insertion and steel plate insertion and withdrawal, it has the effect of reducing equipment usage fees.

In addition, by welding both sides after overlapping the angles on the steel plate, there is an effect of easily manufacturing a diamond-shaped pile.

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

<First Embodiment>

3 to 7 show a first embodiment of the present invention.

The diamond-shaped pile for earth retaining construction according to the first embodiment of the present invention (hereinafter simply referred to as a 'rhombus pile') is, before excavating the ground for building new construction or landfill and replacement work for water and sewage pipes, earth retaining construction To be inserted into the ground (S) at regular intervals, a long steel plate 11 having a certain width, an angle 12 welded to the center of both sides of the steel plate 11, and the It is configured to include a pair of reinforcing plates 13 provided on top of the steel plate 11.

That is, the rhombic pile 10 according to the present invention can be easily manufactured by welding both sides after overlapping the angle 12 on the steel plate 10.

In addition, as shown in FIGS. 3 and 4, the reinforcing plate 13 has a welding hole 13a formed in the center and welded to both sides of the upper surface of the steel plate 11, respectively.

When welding the reinforcing plate 13 to the steel plate, the welding bead is prevented from protruding to the outside of the reinforcing plate 13.

At the same time as reinforcing the strength of the upper part of the diamond-shaped pile 10 by the reinforcing plate 13, the clamping part of the vibratory hammer (hereinafter simply referred to as 'hammer clamping part') holds the upper part of the diamond-shaped pile 10 It can be gripped firmly.

In addition, the steel plate 11 is formed to protrude from both ends of the angle 12, respectively.

Accordingly, as shown in FIG. 5 , the wing portion 20a of the wing-shaped iron plate 20 may be fitted into the protruding portion of the steel plate 11 adjacent to each other.

In the earth retaining method according to the first embodiment of the present invention, (a) assembling a gripping jig 40 in the upper center of a wing-shaped iron plate 20 having wings 20a on both sides (S10) , (b) After gripping the reinforcing plate 13 of the diamond-shaped pile 10 having the steel plate 11 with the clamping part C of the vibration hammer mounted on the excavator, the diamond-shaped pile 10 After the step of inserting into the ground (S20), (c) after the step S20, the gripping jig 40 of the wing-shaped iron plate 20 is gripped with the clamping part (C) of the vibratory hammer, and then adjacent to each other. It is configured to include a step (S30) of fitting the wing portion 20a of the wing-shaped iron plate 20 to the steel plate 11 of the rhombic pile 10 to be.

In addition, as shown in FIG. 6, in the wing-shaped iron plate 20, an arc-shaped first rounding part 20e is formed at the lower part of the wing part 20a provided on both sides of the wing-shaped iron plate 20, respectively. .

Due to the first rounding portion 20e described above, the wing portion 20a of the wing-shaped iron plate 20 can be easily fitted into the protruding portion of the steel plate 11.

In addition, arc-shaped second rounding portions 20f are formed at both lower corner portions of the wing-shaped iron plate 20, respectively.

Due to the second rounding portion 20f, it is possible to prevent deformation of the corner of the iron plate from interfering with the insertion operation of the iron plate.

In addition, the curvature of the first rounding portion 20e is greater than the curvature of the second rounding portion 20f, so that an open space is secured under the wing portion 20a.

And, as shown in FIG. 6, the gripping jig 40 assembled to the wing-shaped iron plate 20 is provided on the bolt assembly part 41 and the upper part of the bolt assembly part 41 for hammer clamping. It is composed of a pair of members including a gripping portion 42 for gripping the portion C and a horizontal portion 43 extending horizontally from an upper portion of the gripping portion 42 .

By the horizontal portion 43, the hammer clamping portion C can firmly grip the holding jig 40.

In addition, it is preferable that the horizontal direction thickness t2 of the holding part 42 is thicker than the horizontal direction thickness t1 of the bolt assembly part 41 .

This is to prevent the bolt 44 and the nut 45 from protruding from the gripping portion 42 when the gripping jig 40 is assembled.

As a result, damage to the bolts 44 and nuts 45 can be prevented during the gripping operation of the hammer clamping part C, and the assembled bolts 44 and nuts 45 can be prevented from interfering with the gripping operation. In addition, the sum of the horizontal width of the pair of horizontal parts 43 and the thickness of the wing-shaped iron plate 20 is the inner space when the hammer clamping part C grips the holding jig 40. It is formed shorter than the negative width D (see FIG. 6).

With the above structure, the inside of the hammer clamping portion C can be firmly gripped while accommodating the horizontal portion 43 of the holding jig 40.

On the other hand, as shown in FIG. 7, the gripping jig 40 assembled to the wing-shaped iron plate 20 includes a gripping part 42 for gripping the hammer clamping part C, and the gripping part ( 42) is composed of a pair of members including a horizontal part 43 extending horizontally from the upper part, and is formed in the upper center of the wing-shaped iron plate 20 by the welding hole 42a formed in the gripping part 42. Each may be welded.

In addition, although not shown in the drawings, the gripping jig 40 may be formed with only the gripping portion 42 without a horizontal portion and welded to the upper portion of the wing-shaped iron plate 20.

Hereinafter, a process of constructing an earth retaining wall using a diamond-shaped pile and a wing-shaped iron plate according to the first embodiment of the present invention will be described.

First, as shown in FIG. 6 , a gripping jig 40 is assembled at the upper center of the wing-shaped iron plate 20 having wings 20a on both sides (S10).

In addition, a vibrating hammer (not shown) is mounted on the tip of the excavator, and the upper part of the diamond pile 10 is gripped by the hammer clamping part C, and then the diamond pile 10 is fixed to the ground while applying vibration insert at intervals

After the diamond-shaped file 10 is inserted, the gripping part 42 of the gripping jig 40 assembled to the wing-shaped iron plate 20 is gripped by the hammer clamping part C, and then the diamond-shaped shapes adjacent to each other are gripped. It is inserted into the steel plate 11 of the pile 10.

After all the wing-shaped iron plates 20 are inserted between the diamond-shaped piles 10, the vibration hammer is dismantled from the excavator, the ground is excavated, and the necessary construction is performed.

The conventional method of assembling the angle 3 to the H beam pile 1 and inserting the iron plate 4 into the gap between the flange of the H beam pile 1 and the angle 3 (see FIG. 2), the iron plate There is a disadvantage that the insertion of (4) takes a lot of time.

In addition, when inserting the iron plate 4 with a vibrating hammer, it is difficult to ensure that the hammer clamping part C firmly grips the upper part of the flat iron plate.

In addition, in the conventional method shown in FIG. 2, it is difficult for the hammer clamping portion C to accurately grip the center of the central portion of the iron plate 40. If the hammer clamping part (C) does not accurately grip the center of the iron plate (4), the iron plate (4) tilts to one side.

come alive

Accordingly, it becomes difficult to fit the iron plate into the narrow gap of the H-beam pile (1), and when the wide iron plate (4) is inserted, this problem is further aggravated.

In addition, after the construction is completed, it is not easy to grip the flat iron plate embedded in the ground and pull it out upward. In order to solve the above problem, there is a method of marking a center line on an iron plate.

However, since the retaining iron plate is always exposed to soil and covered with soil as time passes, it is difficult to visually check the center line.

In contrast, in the present invention, the gripping jig 40 is accurately assembled at the upper center of the wing-shaped iron plate 20.

Accordingly, as long as the hammer clamping part (C) grips the gripping part 42 of the gripping jig 40, the left and right balance of the iron plate is automatically adjusted, so the wing-type iron plate 20 is moved to the diamond file 10 It can be quickly inserted into the steel plate 11 of

In addition, since the present invention includes the horizontal portion 43 at the top of the holding jig 40, the hammer clamping portion C can firmly hold the holding jig 40.

In the present invention, since the first rounding portion 20e is formed under the wing portion 20a of the wing-shaped iron plate 20, the wing portion 20a is attached to the steel plate 11 of the diamond-shaped pile 10. Very easy to insert.

That is, when the lower part of the iron plate from which the wing part 20a is partially removed is brought into close contact with one side of the steel plate 11 and then vibrates, the wing part 20a is smoothly inserted while riding down the steel plate 11. In addition, since the hammer clamping part (C) has a structure in which the wing-type iron plate 20 is pulled out from the ground by hooking the horizontal part 43, the wing-type iron plate 20 embedded in the ground can be quickly and easily pulled out. There is a number.

<Second Embodiment>

8 to 10 show a second embodiment of the present invention.

The diamond-shaped pile (10a) for earth retaining construction according to the second embodiment of the present invention further includes an auxiliary plate (11a) on one side of the angle (12) in the above-described first embodiment, so that it is flat instead of the wing-shaped iron plate (20). This is so that the iron plate 30 can be used.

That is, as shown in FIGS. 8 and 9, a pair of auxiliary plates 11a are welded to either side of the angle 12 in a direction parallel to the steel plate 11.

With the above structure, as shown in FIG. 10 , the flat iron plate 30 can be inserted into the gap between the auxiliary plate 11a and the steel plate 11 .

According to the second embodiment of the present invention, although the structure of the diamond-shaped pile 10a is slightly complicated, since a general flat iron plate 30 can be used, it is not necessary to form separate wings on both sides of the iron plate.

And the earth retaining method according to the second embodiment of the present invention, (a) assembling the gripping jig 40 in the upper center of the flat iron plate 30 (S40), (b) mounted on the tip of the excavator After gripping the reinforcing plate 13 of the diamond-shaped pile 10a having the steel plate 11 and the auxiliary plate 11a with the clamping part C of the vibratory hammer, the diamond-shaped pile 10a is placed on the ground. Insertion step (S50), (c) After the step S50, after gripping the gripping jig 40 of the flat iron plate 30 with the clamping part C of the vibrating hammer, the diamond-shaped files adjacent to each other It is configured to include a step (S60) of inserting both sides of the flat steel plate 30 into the gap between the steel plate 11 and the auxiliary plate 11a of (10a).

Here, the gripping jig 40 assembled to the flat iron plate 30 is provided with a bolt assembly part 41 and an upper part of the bolt assembly part 41, as in the case of the wing-shaped iron plate shown in FIG. It is composed of a pair of members including a gripping part 42 for gripping the hammer clamping part C and a horizontal part 43 extending horizontally from the top of the gripping part 42, and a flat iron plate. It can be assembled by bolts 44 and nuts 45 through through-holes 20c formed in the upper part of (30).

In addition, the gripping jig 40 assembled to the flat iron plate 30, as in the case of the wing-shaped iron plate shown in FIG. It consists of a pair of members including a horizontal portion 43 extending horizontally from the upper portion of the branch 42, and the upper portion of the flat iron plate 30 is formed by the welding hole 42a formed in the holding portion 42. Each can be welded in the center.

Other matters are the same as those of the above-described first embodiment, so redundant descriptions will be omitted.

In the above, preferred embodiments of the present invention have been described by way of example, and the present invention is not limited to the above embodiments. Those skilled in the art to which the present invention pertains will understand that various changes and modifications are possible without departing from the scope of the technical spirit of the present invention.

Claims (11)

When excavating the ground for new building construction or pipeline reclamation work, in the lozenge pile inserted into the ground at regular intervals to do earth retaining work,
A long steel plate 11 having a certain width,
An angle 12 welded to the center of both sides of the steel plate 11, respectively;
A diamond-shaped pile for earth retaining construction, characterized in that it comprises a pair of reinforcing plates (13) provided on the upper part of the steel plate (11). The method of claim 1,
The reinforcing plate 13 has a welding hole 13a formed in the center and is welded to both sides of the upper surface of the steel plate 11, respectively. The method of claim 1,
The steel plate 11 protrudes from both ends of the angle 12, respectively, so that the wing portion 20a of the wing-shaped iron plate 20 is fitted. The method of claim 3,
A pair of auxiliary plates 11a are welded to either side of the angle 12 in a direction parallel to the steel plate 11, and the gap between the auxiliary plate 11a and the steel plate 11 is flat. A diamond-shaped file for earth retaining construction, characterized in that the iron plate 30 is inserted. In the earth retaining method using a rhombic pile and a wing-shaped steel plate for earth retaining construction,
(a) assembling the gripping jig 40 in the upper center of the wing-shaped iron plate 20 having wings 20a on both sides (S10);
(b) After gripping the reinforcing plate 13 of the diamond-shaped pile 10 having the steel plate 11 with the clamping part C of the vibration hammer mounted on the excavator, the diamond-shaped pile 10 is placed on the ground Inserting into (S20),
(c) After the step S20, after gripping the jig 40 for holding the wing-shaped iron plate 20 with the clamping part C of the vibrating hammer, the steel plate of the rhombic pile 10 adjacent to each other ( 11) Earth retaining method using a diamond-shaped pile and an iron plate for earth retaining construction, characterized in that it comprises the step (S30) of inserting the wing portion (20a) of the wing-shaped iron plate (20). The method of claim 5,
An arc-shaped first rounding portion 20e is formed at the lower portion of the wing portion 20a provided on both sides of the wing-shaped iron plate 20, respectively,
An earth retaining method using a diamond-shaped pile and an iron plate for earth retaining construction, characterized in that arc-shaped second rounding portions 20f are formed at both lower corners of the wing-shaped steel plate 20, respectively. The method of claim 5,
The gripping jig 40 assembled to the wing-shaped iron plate 20,
A bolt assembly part 41, a gripping part 42 provided on the upper part of the bolt assembly part 41 so that the hammer clamping part C grips it, and a gripping part 42 extending horizontally from the upper part of the gripping part 42 Consisting of a pair of members including a horizontal portion 43,
Earth retaining method using a diamond-shaped pile and an iron plate for earth retaining construction, characterized in that assembled by bolts 44 and nuts 45 through the through hole (20c) formed on the upper part of the wing-shaped iron plate (20). The method of claim 5,
The gripping jig 40 assembled to the wing-shaped iron plate 20,
A gripping portion 42 for gripping the hammer clamping portion C, and a horizontal portion 4 extending horizontally from an upper portion of the gripping portion 42
3) is composed of a pair of members including,
Earth retaining method using a diamond-shaped pile and an iron plate for earth retaining construction, characterized in that each welded to the upper center of the wing-shaped iron plate 20 by the welding hole (42a) formed in the gripping portion (42). In the earth retaining method using a rhombic pile and a flat steel plate for earth retaining construction,
(a) assembling the gripping jig 40 at the upper center of the flat steel plate 30 (S40);
(b) After gripping the reinforcing plate 13 of the diamond-shaped pile 10a having the steel plate 11 and the auxiliary plate 11a with the clamping part C of the vibratory hammer mounted on the tip of the excavator, the above Step of inserting the rhombic pile (10a) into the ground (S50);
(c) After the step S50, after gripping the gripping jig 40 of the flat iron plate 30 with the clamping part C of the vibratory hammer, the steel plate of the rhombic pile 10 adjacent to each other ( 11) and the auxiliary plate (11a) a step (S60) of inserting both sides of the flat iron plate 30 into the gap between the earth retaining construction method using a diamond-shaped pile and an iron plate. The method of claim 9,
The gripping jig 40 assembled to the flat steel plate 30,
A bolt assembly part 41, a gripping part 42 provided on the upper part of the bolt assembly part 41 so that the hammer clamping part C grips it, and a gripping part 42 extending horizontally from the upper part of the gripping part 42 Consisting of a pair of members including a horizontal portion 43,
Earth retaining method using a diamond-shaped pile and an iron plate for earth retaining construction, characterized in that assembled by bolts 44 and nuts 45 through the through hole (20c) formed on the upper part of the flat iron plate (30). The method of claim 9,
The gripping jig 40 assembled to the flat steel plate 30,
A gripping portion 42 for gripping the hammer clamping portion C, and a horizontal portion 4 extending horizontally from an upper portion of the gripping portion 42
3) is composed of a pair of members including,
Earth retaining method using a diamond-shaped pile and steel plate for earth retaining construction, characterized in that each welded to the upper center of the flat iron plate 30 by the welding hole (42a) formed in the gripping portion (42)