KR101770589B1 - Pile construction method using upper head extended pile - Google Patents

Abstract

The present invention relates to a pile construction method using an upper extended pile, capable of solving a problem, which is a disadvantage of a burying method, causing a gap between the ground and the pile due to a loss of cement milk since the cement milk is unused as an advanced burying method and a post-pile driving method are used in parallel, and also capable of blocking noise even if a pile driving method is used in parallel; thereby realizing environmentally-friendly pile construction. According to the present invention, the method comprises: a step (a) of inserting first a lower pile into the ground through a drilling hole; a step (b) of connecting the upper extended pile to a head part of the lower pile exposed on the ground; a step (c) of interconnecting the head part of the upper extended pile and a pile driver wherein a noise-prevented pile driving apparatus is lifted on a lifting apparatus by a lifting ring of an internal support body; and a step (d) of operating the pile driver to drive the lower pile integrated with the upper extended pile so as to be inserted into the ground.

Description

{PILE CONSTRUCTION METHOD USING UPPER HEAD EXTENDED PILE}

The present invention relates to a file construction method using an upper expandable file. More specifically, unlike the pile construction method, unlike cement milk, it is possible to solve the gap problem between the ground and the pile due to the loss, but it can block the noise while using the pile driving method. To a file construction method using an upper expandable file.

Figs. 1A and 1B are diagrams showing examples of construction of a piling and burying method as a conventional piling method.

When a building or civil structure is placed on a soft foundation, the deep foundation is pushed up to the support layer to secure the bearing and stabilize the foundation. The file is made of various materials such as wood, steel and concrete, and is installed by various construction methods such as hire, excavation and hire.

Therefore, the piling method is introduced in the conventional file construction method.

That is, as shown in FIG. 1A, the pendant method is the oldest and most widely used file construction method, and can be applied to all kinds of files.

The construction method is a method of directly inserting the ready file 62 into the hammer 61 installed in the hanger 60 and inserting the file into the ground. Construction costs are low, construction is good, and end bearing capacity is good. However, there is a problem that construction is difficult when there is a great concern about the occurrence of complaints due to noise and vibration and the distribution of pebbles and ovoids in the middle.

Therefore, it is difficult to apply the hantagonal method in the accreditation because of the extreme noise, and it is currently being applied in a large scale complex or coastal area where there is no complaint about noise pollution in Korea.

As shown in FIG. 1B, a purchase method capable of solving the noise problem of the plowing method is introduced. This embedding method is performed by using the auger 63 and at the same time, the casing 64 for preventing the collapse of the ground is inserted to excavate to the support layer, and then the cement milk 65 (cement paste) for reinforcing the front edge and filling the gap between the ground and the pile And inserts the ready-made file 62. Then, the casing 64 is pulled out and the file 62 is pushed to secure the leading end supporting force and the process is terminated.

This method is easy to ensure safety during construction if it can be applied to various strata because of low noise and low vibrations. However, if the cement paste is injected into the remaining space between the pile end and the main surface and the ground after drilling, It is difficult to obtain the required penetration depth of the pile in the supporting layer and the supporting force of the main surface is lowered because the cement pool is introduced into the groundwater in the place where the ground water amount is large.

FIG. 1C illustrates the problem of bridge construction occurring in such a masonry method.

That is, since the cement milk (65) is not lost in the ground where the ground water is small, the filling method is a method in which a gap is filled between the perforation hole and the pile of the ground and the horizontal load is largely applied 20) Although ground resistance can be applied to foundation load,

In places with a large amount of ground water, cement milk (65) flows into the groundwater and is lost, making it impossible to fill the gap between the pile and the ground.

It can be seen that such a gap has a large displacement because it weakens the resistance of the ground to the horizontal load in the pile 62 supporting the structure 20 in which a horizontal load acts largely, such as an alternation or a retaining wall.

Therefore, the gap width between the ground and the pile according to the general piling method is more than about 5 cm, which is more than the safety upper limit of 2 to 3 cm, which can greatly affect the safety of the structure 20.

For this reason, the cement milk is strictly controlled to be injected in the second or third stage according to the construction stage, but after the casing is removed, the cement milk is re-injected between the pile and the ground because the ground is partially collapsed It is virtually impossible to do. In fact, there is a problem that it is difficult to construct the upper structure due to the occurrence of the structure swelling phenomenon in various sites where the soil is high and the groundwater is large.

In addition, to use the pile driving method which is an economical pile construction method, it is necessary to cut off the noise generated during the pile driving.

However, such a conventional soundproofing device is intended to control the noise generation (for buffering action) by mitigating the shock generated when the hovering is almost done, and since the durability problem occurs in the shock absorption process, much effort is required to replace and reinstall the cushion In addition to being required, it is possible to control some of the noise generated near the head of the file, and there is a limit to blocking all noise generated in the anti-aircraft.

Japanese Patent No. 2989566 (entitled " Drop Hammer Apparatus with Soundproofing Mechanism ", published on October 10, 1999) Korean Patent No. 10-1375789 (Title of the Invention: Noise Reduction Material and File Piling Structure Using It, Published on Mar. 19, 2014)

Accordingly, the present invention provides a method for installing a file without gap between a ground and a file without separately injecting cement milk in the method of filling, which effectively blocks the noise when the file is constructed by using the piling method, The present invention has been made in view of the above problems, and it is an object of the present invention to provide a pile construction method for horizontal load resistance that facilitates replacement, disassembly, and movement by a lifting device.

According to an aspect of the present invention, there is provided a file construction method using an upper expandable file,

(a) penetrating the pile through the perforation hole first; (b) connecting the upper expandable file to the pile head exposed to the ground; (c) connecting the heads of the expandable pile to the pile installed on the lifting device by the lifting ring of the inner support; And (d) operating the hanger so as to allow the file integrated with the extended file to be intruded into the ground, wherein the file is constructed while blocking the noise by the hanger method after the cementing method without using the cement milk, In the step (d), after the lower file integrated with the upper expandable file is intruded into the ground, the foundation of the upper expandable pile is integrated with the foundation of the structure.

Also, preferably, the noise canceller file padding device

A spanner set to be connected to an exposed extended file head; An outer housing which is set so as to surround all of the expansive expandable file, the hanger, and the hovering origin, and has a sound absorbing material installed on its inner side; And an inner support formed integrally with the outer housing provided with the sound absorbing material so as to be able to move upward and downward by the hinge guide portion, the noise generated by the sound source generated from the pile head, which is the hinge starting point, And the noise that is transmitted to the file can be blocked.

According to the upper expansion type pile construction method for horizontal load resistance according to the present invention, a lower pile having a diameter smaller than that of the pierced hole is first inserted by the embedding method, and then the cage milk is not used. Since there is no gap between the file and the perforation hole due to the penetration of the pile after the pile is connected, it is possible to prevent the pile of the structure from occurring in many sites with high soil cover and high groundwater.

In addition, the noise-isolating file hanger device used for the hanger application method is manufactured to be easily lifted by the lifting device, and the hanger, the hanger, the pile head, and the entire exposed file It is possible to block all the sound sources generated by wrapping, thereby overcoming noise, which is a problem of the pneumatic method, and to construct an economical file.

In addition, since the noise blocking mating device does not require a separate transport device necessary for the construction of the next file after the installation of the file, the next file can be hacked immediately after the file hitting is completed, thereby enabling quick and economical file construction.

FIGS. 1A and 1B illustrate examples of a conventional file construction method,
FIG. 1C is a view showing a problem example of file construction by a conventional burial method,
Figure 2 is an illustration of the structural advantages of an upper scalable file constructed in accordance with the present invention,
FIG. 3A is an illustration of a noise propagation path and a noise blocking example according to the present invention,
FIG. 3B is a view illustrating a noise blocking file pest controller according to the present invention,
4A and 4B are flowcharts of a method of constructing a file using the noise canceller file of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.

[Lower file (300) and upper extended file (400) used in the construction of the present invention]

FIG. 2 shows the construction of a file constructed according to the present invention.

In other words, when the existing filling method is applied, the pile is inserted into the perforation hole, which is somewhat larger than the pile diameter, so that the gap between the pile and the pile is filled with the cement milk so that the gap can be removed, and the ground can resist the horizontal load acting on the foundation 500 However, when cement milk is leaked together with groundwater in a place where the amount of ground water is large, a gap is generated between the pile and the perforated hole, so that the horizontal load can not be resisted.

However, when the upper file 300, which is similar to or slightly larger than the perforation hole, is inserted into the perforation hole by inserting the lower file 300 into the perforation hole and removing the casing, a gap is not generated between the ground and the file, Since the ground can resist the horizontal load of the ground, the safety is ensured at all times.

In addition, when the horizontal load is largely applied to the foundation 500, the most unfavorable position of the structure in the structure is the head of the pile connected to the foundation of the structure. The size of the pile is determined mainly by the sectional force of the foundation.

Therefore, it is possible to design an economical file by using a file with a small cross section where the upper section having a larger cross sectional force and the lower section having a smaller cross sectional force and only determining the support force of the ground using the upper expandable file.

In addition, the pile construction method is usually carried out to support weathered rocks. However, since the pile construction method is usually constructed so as to be supported on the ground of about N40 existing in the upper part of the weathered rock, the lower pile is inserted by the embedding method, And penetration of the remainder by plowing can reduce the length of the pile by as much as the depth between the weathered rock and the N40 layer,

Since the cement milk is not used in the filling method, the cement milk can be prevented from leaking together with the ground water. In the pest control method, noise is basically blocked by using the noise isolation pest hovering device 100, Construction can be done.

In the present invention, the file integrated with the foundation of the structure uses the upper expandable file 400, and the upper expandable file 400 is connected to the lower file 300 constructed first, The construction is carried out using the pneumatic method. First, the noise cancellation file pest controller 100 will be described, and a file construction method for a horizontal load resistance according to the present invention will be described.

[Noise canceling file pest controller 100 of the present invention]

FIG. 3A is a noise propagation path example diagram and a noise cancellation outline diagram according to the pivoting method. FIG.

That is, the piling method is a method in which the head of the upper expandable file 400 connected to the lower file 300 is directly driven to the ground G and the head of the upper expandable file 400 is driven by the hinge 160 having the hammer, .

Accordingly, when the upper expandable file 400 is loaded,

The hammer which is a sound source and the hovering origin of the upper expandable file 400 propagate into the air by impact,

The impact in the sound source is transmitted through the upper expandable file 400 and the lower file 300 to propagate back into the air,

The impact from the sound source is transmitted through the hinge 160 and then propagated into the air to cause noise through various routes.

Therefore, in order to effectively absorb the noise, the noise blocking file pest controller 100 must be able to block all the noise routes caused by the source of hanger origin.

To this end, the noise suppression file pest controller 100 of the present invention includes a sound absorbing plate (not shown) capable of absorbing noise while enclosing both a sound source which is an origin of hanger and a hanger 160, an exposed upper expanded file 400, 121 and a sound-absorbing plate 122 are integrally formed in the form of a box body integrally formed with the outer housing 110,

The noise isolator paddle hitching device 100 can be connected to the lifting device 200 such as a crane while being guided to smoothly operate the hinge 160 so as to be freely movable but not to have a large self weight,

The noise cancellation file plowing device 100 includes a vertical structure having a lower end connected to the ground G while accommodating both the upper expandable pile 400 and the lower pile 300 exposed above the surface of the ground, As shown in FIG.

FIG. 3B is a view illustrating a combined structure of the noise suppression file mover 100, the hover 160, and the upper expandable file and the lower files 300 and 400 according to the present invention.

The noise isolating file pest controller 100 includes an outer housing 110, a sound absorbing material 120, an inner support 130, a housing connecting material 140, a hanger guide unit 150, and a hanger 160 .

The noise isolating file pest controller 100 is connected to the pest controller 160 through the pest controller 150 so that the entire pest controller is positioned inside the pest controller 150 so as not to interfere with the pest operation.

As shown in FIG. 3B, the outer housing 110 may be formed to have a box shape using a steel plate so that the upper and lower portions thereof are opened, and the outer housing 110 may be sized to accommodate the air spring 160 in the inner space. This outer housing functions as a kind of protective cover.

As shown in FIG. 3B, the sound absorbing member 120 may be attached to the inner side surface of the outer housing 110 using a fastener. The sound absorbing plate 121 and the sound insulating plate 122 may be made of a material that absorbs and blocks noise. Therefore, the sound absorbing material is closely attached to the outer housing 110 by using a plurality of fasteners such as bolts and nuts, and the fasteners can be loosened and replaced.

3B, the inner support 130 is connected to the outer housing 110 where the sound absorbing material 120 is installed, so that noise is diffused by the inner space S while maintaining the shape of the noise isolation mooring device 100 The truss structure 131 has a function of effectively absorbing noise by the sound-absorbing material 120 and is formed in the shape of a truss structure 131 using a steel material for the shape maintenance.

The inner support 130 is formed in the form of a vertical support so as to surround the hanger 160 for pile driving and is formed in the form of a truss structure 131 using a steel material. It can be seen that the inner space S between them is formed.

3B, the housing connecting member 140 is a steel member installed between the outer surface of the truss structure 131 of the inner support 130 and the outer housing 110, and the flange of the steel member is welded to the inner support 130 And the outer housing 110 with the sound absorbing material 120 is fixed to the inner supporting body 130 by fastening the outer flange and the outer housing with the connecting bolts.

Accordingly, the external housing 110 provided with the sound absorbing material 120 can be stably set, and the sound absorbing material 120 is also protected.

3, the hanger guide unit 150 is installed as a kind of guide rail installed along the inner side of the inner support member 130, and the hanger 160 directly engaged with the guide rail 151, which is a steel member, So that the hovering operation can be performed without being disturbed by the hull 100. A plurality of fastening members 161 are installed on the outer surface of the hinge 160 so as to be engaged with the guide rails 151.

In the noise suppressing file paddling apparatus 100 of the present invention, the paddle 160 is easily operated by the paddle guide unit 150, and the paddle 160 is installed in the noise padding paddle apparatus 100 It can be moved integrally and separation and detachment can be simplified.

The hover 160 includes a hammer and a hydraulic jack for guiding the head of the upper expandable pile 400 by being guided by the pillar guide 150 inside the noise canceling pillar hanger 100.

As shown in FIG. 3B, the noise isolating file mover 100 may further include a lower closure plate 170 having elasticity on the outer side of the lower end of the outer housing to prevent the noise from leaking to the outside,

3B, in order to control the position of the lower files 300 and 400 integrated with the upper expandable file 400 and the upper expandable file 400 and the upper expandable file, A shock absorber 180 is installed on the inner surface of the lower end of the support body 130 so as to be positioned around the file to control the position of the lower files 300 and 400 integrated with the upper expandable file, The files 300 and 400 and the noise canceling file mover 100,

3B, a starter 190 is installed on the upper portion of the shock absorber 180 so that the hover 160 can operate within a limited range within the noise canceller 100, The file pest controller 100 and the pest controller 160 can be prevented from being separated from each other,

A plurality of lifting hooks 132 are formed on the upper surface of the inner support 130 so that the noise blocking mover 100 and the hover 160 can be lifted and moved together by a lifting device 200 such as a crane do.

The noise suppression file pest controller 100 and the pest controller 160 are used in the present invention.

[File Construction Method Using Upper Expandable File (400) of the Present Invention]

4A and 4B show a flowchart of a file construction method using the upper scalable file 400 of the present invention.

In this method of constructing a file, both the purchase method and the padding method are used together. First, the lower file 300 is constructed by the purchase method, and then the upper expandable file 400 is connected to the lower file 300, The file construction is completed.

As shown in FIG. 4A, the lower file 300 is constructed by a burying method.

That is, when the perforation hole is completed by inserting the casing 220 at the same time so as to maintain the air wall by using the auger by using the auger in the ground, the lower file 300 is inserted into the casing and the casing is removed, Is completed.

At this time, the upper expandable pile 400 having a diameter similar to or slightly larger than the perforation hole penetrated by the paving method is connected to the upper portion of the lower pile 300 exposed above the ground. That is, when a horizontal load is applied to the foundation of the structure, the upper expandable pile 400 having a diameter similar to or slightly larger than the perforation hole is penetrated by the pile driving method, so that there is no gap between the pile and the pile, Safety is ensured,

As shown in FIG. 2, since the most unfavorable position in the structure is the pile head connected to the foundation of the structure, the present invention firstly secures the required supporting force by the pile-up method and connects the lower pile 300, Since the upper file is structurally required and is constructed with the upper expandable file 400 having a diameter similar to or slightly larger than the perforation hole, the lower file 300 with a smaller diameter enables the design of an economical file.

Next, as shown in FIG. 4B, the upper expandable file 400 and the lower file 300 are constructed by the pile driving method to the foundation 2 using the noise suppression file pest controller 100 described above.

The ground is composed of a soil layer 1, which is usually less than N <40, and a soil layer 2, which is N> 40 below the soil layer 1. The lowest layer is composed of a rock layer such as a weathered rock layer. It is economical to reduce the pile length of the weathered rock layer and the N40 layer because it is possible to support the pile end on the N40 soil layer 2 above the weathered rock layer.

That is, the lifting device 160 and the noise isolation device 100 are lifted by using the lifting device 200, and the initial setting is made so that the head of the upper expandable file 400 is entrained below the lifting device 160.

It can be seen that the silencer hanger 100 and the hanger 160 are suspended from the lifting device 200 by the lifting ring 132 and the stopper 190 of the inner support 130.

The hinge 160 is operated to pivot the leading end of the lower pile 300 integrated with the upper expandable pile 400 into the ground so that the leading end of the lower pile 300 penetrates into the supporting pile.

At this time, the noise caused by hovering is transmitted to the expandable file and the file, and the shock in the sound source is transmitted to the hanger, in the noise source of the present invention. Is set by the lower closure plate 170 on the ground, all of these sound sources are not transmitted to the outside of the hanger.

When the file hovering is completed, the noise blocking file hovering device 100 and the hovering device 160 are moved to another file hitting work location by the lifting device 200 and the operation is repeated.

When the construction of the lower file 300 integrated with the final upper expandable file 400 is completed, the structure bases 500 are integrated with each other to be constructed.

As a result, according to the file construction method using the upper expandable file 400 according to the present invention, in the conventional embedding method using the cement milk, there is no gap in the ground and the upper expandable pile 400 without using the cement milk, It can be understood that sufficient ground resistance can be ensured against the horizontal load acting on the foundation 500 of the structure.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: Noise-isolating file pest device 110: External housing
120: sound absorbing material 121: sound absorbing plate
122: sound insulating plate 130: inner support
131: truss structure 132: lifting ring
140: Housing connector 150:
151: Guide rail
160: Hinges 161: Fastening members (with hinges)
170: Lower closure plate 180: Shock absorber
190: Starter 200: Lifting device
300: lower file 310: file cap
400: Upper Expandable File 500: Structural Foundation

Claims (8)

(a) inserting the lower pile 300 into the ground first through a perforation hole;
(b) connecting the upper expandable file (400) to the head of the lower file (300) exposed on the ground;
(c) When the ceiling of the upper expandable pile 400 is connected to the pendant 160 having the lifting pile hitching device 100 mounted on the lifting device 200 by the lifting pail 132 of the inner support 130, Making a connection; And
(d) activating the hanger 160 so that the lower pile 300 integrated with the upper expandable pile 400 is pushed into the ground; and (b) after the pavement method without using the cement milk, By constructing the file while blocking the noise,
In the step (d), after the lower file 300 integrated with the upper expandable file 400 is intruded into the ground, the structure foundation 500 is integrated with the head of the upper expandable file 400, File construction method using extended file. The method according to claim 1,
In the step (c), the noise suppression file pest controller 100
A hinge 160 set to be connected to the head of the exposed upper scalable file 400;
An outer housing 110 having an exposed upper expandable file 400, a lower file 300, an air spring 160, and a sound absorbing material 120 installed on an inner surface of the outer housing 110;
And an inner support 130 formed integrally with the outer housing 110 in which the sound absorbing material 120 is installed so that the inner guide 130 and the inner guide 130 can be moved upward and downward, A file construction method using an upper expandable file which can block both noise caused by a sound source occurring at the head of a file and noise generated when the sound source is transferred from the sound source to the file and the file. 3. The method of claim 2,
The shock absorber 180 may be further protruded from the inner surface of the lower end of the inner support 130 to prevent collision between the upper expandable file 400 and the inner support 130 and to control the position of the upper expandable file 400 when the upper expandable file 400 is head- A file construction method using an upper expandable file. 3. The method of claim 2,
The outer housing 110 is a box body with its bottom opened so that a sound absorbing material 120 composed of a sound absorbing plate 121 and a sound insulating plate 122 is attached to the inner surface thereof by means of fasteners so that the sound absorbing material 120 can be replaced And a lower closure plate 170 made of a material having elasticity is further provided on the lower outer surface of the outer housing 110 so that the lower closure plate contacts the ground while noise does not leak to the outside. 3. The method of claim 2,
The truss structure 131 is a truss structure 131. The inner truss structure 131 is formed by integrating the truss structure 131 and the outer housing 110 by a fastener using a housing coupling member 140 provided outside the truss structure 131, A file construction method using an upper expandable file that allows noise to be absorbed by the sound absorbing material 120 by spreading noise through the inner space S of the structure. 3. The method of claim 2,
The hinge guide unit 150 is a guide rail 151 installed inside the inner support 130 so as to extend upward and downward between the hinge 160 and the inner support 130 so as to be engaged with the guide rail 151 A pile construction method using an upper expandable pile to allow the pile 160 to move upward and downward by means of the pile guide 150 by mounting a plurality of fastening members 161 on the outer surface of the pile 160. The method of claim 3,
A stopper 190 is further provided on the upper portion of the shock absorber 180 so that the hinge 160 can operate within a limited range within the noise canceller hanger 100. On the upper surface of the inner support body 130, A file construction method using an upper expandable file that allows a plurality of lifting rings 132 to be lifted and lifted together by the lifting device 200 by moving the noise blocking file padding device 100 and the lifting device 160 together. delete

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