KR101560681B1

KR101560681B1 - Vibration-free, noise-free, not soil exhaust S.C.P-PILE and that construction methods

Info

Publication number: KR101560681B1
Application number: KR1020150065158A
Authority: KR
Inventors: 조용구
Original assignee: 에이티건설(주)
Priority date: 2015-05-11
Filing date: 2015-05-11
Publication date: 2015-10-16

Abstract

The present invention relates to a file construction method for supporting a structure free from noise, noise, and non-dusting, and a file for supporting a structure. More specifically, the file for supporting a structure is drilled in a ground by a rotary drilling method, And the support for the compressive and tensile loads can be maximized so that the structures such as the high-rise buildings can be safely supported by the anvil, And a method of constructing the same.
The present invention relates to a pipe structure, comprising: a lower file forming a screw on a lower periphery of a body of a pipe structure having a through hole formed therein, a drill bit mounted on a lower end thereof, A file for supporting a structure free from vibration, noiseless and non-cladding, which is composed of a combination of a plurality of upper files constituted by a pipe having a through hole formed therein so as to be connected to the upper side of the lower file and forming a key on the upper outer edge, to;
A key provided on the upper end of the lower file having the excavation bit mounted on the lower end thereof is connected to a connecting port connected to the driving part of the rotary excavator and is connected to the upper part of the driving part, An excavation preparation step for allowing ash to be supplied; A first drilling step of drilling the ground while pressurizing and rotating the lower pile with a rotary excavator while simultaneously supplying the grout to the inside of the pile; A file separating step of separating the lower file from the connector in a state where the lower file having the excavation bit is completely embedded in the ground; An upper file connecting step of welding at least the upper file having the same diameter as the lower file to the upper end of the separated lower file and the upper file having the pipe having the key connected to the connector at the upper end; A second piercing step of piercing the file for supporting the structure by coupling the key at the upper end of the upper pile to the connector, while rotating and pressing the file; A third drilling step of repeating the file separation step and the upper file connection step in a state where the upper file is completely buried in the ground, so that the excavation bit of the lower file reaches the rock layer; The whole supporting file embedded in the ground consisting of the combination of the lower file and the upper file with the excavation bit reaching the rock layer is raised and lowered in a 1 to 2m axial direction using a rotary excavator, An anchor forming step of forming an anchor portion of the grout remodeling; And a rotary excavator separating step of lowering the excavating bit to contact the rock after forming the anchor portion and closing the upper file at the connecting port.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a vibration-free, noise-free,

The present invention relates to a file for supporting a structure free from noise, noise, and non-clogging, and a method of constructing the same. More specifically, the present invention relates to a file for supporting a steel pipe (SCP-PILE) Is pierced by a rotary drilling method and then buried in the ground in a state in which an anchor portion is formed at the lower end of the supporting file for contacting the rock layer so as to maximize the supporting force against compression and tensile load, The present invention is to provide a file for supporting a structure free from vibration, noiseless, and non-clogging, and a construction method thereof.

In general, when a building or structure is erected, foundation work is performed to reinforce the ground in order to support the upper structure according to the condition of the ground or the load of the structure.

For example, if the ground contacted with the structure has sufficient rigidity to support it, such as hard ground, it is possible to carry out foundation work directly. However, in case of soft ground, And strengthen the ground by carrying out designated works to improve the ground, and then perform foundation work on the ground.

At this time, the file to be installed on the soft ground is classified into a steel pipe file, a PC file, a PHC file, etc. according to the material thereof, and is classified into a steel pipe file, a tubular file, an H- The tubular file is generally used.

A typical example of a tubular file is proposed in Korean Patent Laid-Open Publication No. 10-1995-0029477 (November 22, 1995), "Construction method and apparatus for using a foundation work" The mortar is injected through the hollow portion after the auger is slightly rotated in the reverse direction after completion of excavation and the mortar is injected through the hollow portion, A file is inserted into a portion of the pile to fix the pile to the support layer together with the mortar, and the pile is removed after the pile is installed to construct the pile on the ground.

The above-described prior art is a widely used method, and a large amount of clay is generated in the excavation process. In order to operate a heavy-weight auger and concrete construction, a middle- or large-sized crane is required. It is a method that can not be applied to the work in.

On the other hand, in the case of performing basic reinforcement work on the existing building, reconstruction work, or basic reinforcement work on a narrow area where large-scale excavation equipment is not available, a micro file of a small diameter file is used. It is able to support large loads with small diameter drilling using small equipment compared to general tubular file with diameter of 250mm or less and it is possible to drill in any kind of ground by its small diameter, There is an advantage that construction can be done at any angle.

Oceanic technologies for microfiles have been proposed, and stress distribution type microfiles of Korean Patent Application Publication No. 10-2009-0089127 (Aug. 21, 2009) have been proposed, In constructing a microfill used as an anchor and pile for obtaining tensile and compressive forces in a deep ground, an end-exposed end is connected to an acupressure plate and inserted into a rock layer through the inside of the casing inserted into the soil layer of soft ground At least two or more of the stress distribution flanges are combined with the stressed dispersion flange according to the required stress to maximize the frictional force and the tensile and compressive forces acting on the tread bar are dispersed in the rocking portion of the installed tread bar. It is designed to effectively resist the ground in a short time.

Another example is a micro pile construction method having an extended fusing unit disclosed in Korean Patent Laid-Open Publication No. 10-2006-0103760 (Apr. 4, 2006). This construction includes a step of inserting a casing into a ground, The method comprising the steps of: drilling the inside of the casing from the soil layer to the rock layer of the ground; inserting the steel material into the hole formed by the drilling; and injecting and curing the grouting solution into the hole, In the piercing step, the rock layer is pierced to the rock layer of the ground so that the pile diameter formed in the rock layer is made larger than the pore diameter formed in the soil layer.

Another example is a microfiche of Korean Registered Patent Application No. B1-1201829 (Nov. 15, 2012), which is composed of a tread bar having a spiral formed on its outer circumferential surface, Wherein a diameter of the center spacing member is greater than an inner diameter of the perforation hole and a diameter of the center hole is smaller than a diameter of the center hole of the micropile, And a plurality of through grooves through which a grouting hose for pouring grout penetrates are formed in the perforation hole so as to be embedded in the center of the tread bar, A ring-shaped fastening length indicator having an elastic force formed at its both ends with the both ends being cut off upward and downward And the coupler is inserted into a spiral corresponding to the fastening end position for connecting the red bars continuously so that the fastening lengths of both ends of the coupler are the same. Wherein a plurality of coupler through grooves through which the grouting hose for grouting pierce is formed in the perforation hole are formed in the periphery of the circumferential end of the center plate of the coupler, The vertical load or the horizontal earth pressure generated by the tread bar is supported by the center plate of the coupler to prevent breakage or deformation and to support the perforation hole, And a fastening step of forming a fastening end of the cut- And a rotation stopper having an elastic force which is brought into close contact with a depression vertex of the groove and is bent in a stepped shape to prevent rotation of the center spacer.

In the case of the microfiles having the above-described configurations, the microfiles can be assembled easily in the field. However, since the microfiles can be easily assembled in the field, the microfiles can be inserted into the casing in the piercing operation using the auger, There is a problem.

Also, since the structure is combined with the concrete or the grout material in the casing, there is a problem that it is weak to the bearing force against compression and tensile load.

For the purpose of improving the bearing capacity against compression and tensile load, a small diameter base file of Korean Patent Laid-Open Publication No. 10-2013-0107171 (Oct. 31, 2013) has been proposed, And a reinforcing member for reinforcing the reinforcing member and reinforcing the reinforcing member, the reinforcing reinforcing member reinforcing the reinforcing member, And a function as a spacer for supporting the pile body in the buried hole at the time of pouring of the concrete, by connecting the pile to the pile body and being spaced apart from each other by a synthetic action with the concrete, And a wing member provided with the wing member.

However, since this structure is also made within the diameter of the casing, problems related to the casing and problems of improving the compression and tensile load can not be fundamentally solved.

KR 1019950029477 A 1995.11.22. KR 1020090089127 A Aug. 21, 2009. KR 1020060103760 A 2006.10.04. KR 101201829 B1 Nov 15, 2012. KR 1020130107171 A 2013.10.01.

Accordingly, the present inventor has researched various problems related to file construction for supporting the above-described conventional structure. The inventor of the present invention researched and developed the present invention. The present inventors have found that a screw is formed on the lower outer periphery of a pipe structure of a pipe structure, After excavation using a rotary excavator, the excavation bit reaches the rock bed and the pile of the supporting structure is buried in the ground, minimizing the vibration and noise even in the narrow space of the city. The present invention also provides a file for supporting a structure capable of supporting a structure safely by increasing the supporting force against compressive and tensile loads while greatly shortening a construction period, and a method of constructing the same. Thereby completing the invention.

According to the present invention,

First, in the file for structure-free vibration-free, noiseless and non-vibration-free structure;

A lower file is formed by forming a screw on the lower side of the body of the pipe structure, attaching the excavation bit to the lower end, and forming a key on the upper end of the pipe to be assembled and connected to a connector coupled to the driving part of the rotary excavator.

And a plurality of upper files having a pipe configuration in which a key is formed on an upper outer edge of the upper portion of the lower portion so as to extend a length thereof,

The connection between the lower file and the upper file may be such that an upper ring is provided on the inner side of the upper side of the through hole of the lower file and a lower ring is provided on the lower side of the through hole of the upper file, And the ground portion of the upper file were welded at all circumferences.

Third, the screw formed on the lower outer side of the lower pile was formed in the range of 1 to 2 m above the excavation bit.

Fourth bit of the excavation bit is symmetrical with respect to the four bit bodies whose bits are coupled to the lower end of the main body and the bit is tilted so as to be oriented toward the rotation direction of the file for supporting the structure. The side bit body is elongated;

A bracket having an internal groove formed therein at a right angle with the main body is disposed on the lower side of the main body to weld the main body and the main body.

Fifth, when the ground is punctured by the excavating bit, a shield plate is disposed in the main body and the installation groove, and a shield plate is disposed in the shield plate installation groove. Then, the shield plate blocks the through hole to cut off the grout supply, When the gap is separated from the ground, the blocking plate is separated from the through hole so that the supply of the gravity can be performed.

The upper end of the lower pile and the upper pile which are driven by being coupled to the connecting port of the driving excavator of the rotary excavator is pressurized by the packing member installed in the connecting port in a state of being coupled to the connecting port to prevent leakage of the grout .

A lower file forming a screw on the lower outer periphery of the body of the pipe structure in which the through hole is formed in the seventh inside, a digging bit mounted on the lower end, and a key formed on the upper outer edge; A non-vibration, noiseless, and non-clogging structure for supporting a structure comprising a combination of a plurality of upper files constituted by a pipe having a through hole formed therein so as to be coupled to an upper side of a lower file and having a key on the upper outer edge;

A grout provided to a swivel-connected grout material supply pipe coupled to an upper portion of the driving unit, wherein the key is provided at the upper end of the lower file having the excavation bit mounted at the lower end thereof, An excavation preparation step for allowing the excavation to be supplied;

A first drilling step of drilling the ground while pressurizing and rotating the lower pile with a rotary excavator while simultaneously supplying the grout to the inside of the pile;

A file separating step of separating the lower file from the connector in a state where the lower file having the excavation bit is completely embedded in the ground;

An upper file connecting step of welding at least the upper file having the same diameter as the lower file to the upper end of the separated lower file and the upper file having the pipe having the key connected to the connector at the upper end;

A second piercing step of piercing the file for supporting the structure by coupling the key at the upper end of the upper pile to the connector, while rotating and pressing the file;

A third drilling step of repeating the file separation step and the upper file connection step in a state where the upper file is completely buried in the ground, so that the excavation bit of the lower file reaches the rock layer;

The whole supporting file embedded in the ground consisting of the combination of the lower file and the upper file with the excavation bit reaching the rock layer is raised and lowered in a 1 to 2m axial direction using a rotary excavator, An anchor forming step of forming an anchor portion of the grout remodeling;

And a rotary excavator separating step of lowering the excavating bit so as to contact the rock after forming the anchor portion and closing the upper file at the connecting port.

According to the present invention, there is provided a file for supporting a vibrationless, noise-free, non-clogging structure and a construction method thereof.

- It is possible to work in a narrow space of the city center because the construction is carried out using a small-sized rotary perforator.

- Because it is excavation by revolving drilling, vibration and noise can be minimized, and civil complaints caused by shaking of building nearby or work noise can be eliminated.

- It is economical because it is possible to increase the cost of raw materials by embedding the structure supporting file composed of the combination of the upper file and the lower file composed of the pipe structure in a truncated state, but it is possible to greatly shorten the working air.

- Since the diameter of the pile is small and the surrounding soil and grout material (concrete) are mixed during the excavation process, it is possible to work without soil, so there is no problem due to the treatment of clay that occurs during excavation.

- After construction, columns filled with grout material are formed inside and outside of the pile, and the anchors are formed at the lower end in contact with the rock layer, so that the bearing capacity against compression and tensile load can be doubled.

- In case of excavation during file construction, the blocking plate cuts the through hole by earth pressure, stops the supply of grout material, and the blocking plate is separated from the through hole due to the grout re-supply pressure during un-excavation, so that excessive grout material consumption can be reduced.

- Since the screw is formed in the range of 1 ~ 2m on the lower outer edge of the lower pile, when the anchor part is formed at the lower end tangent to the rock layer, the screw is recessed into the anchor part.

- The upper part of the lower pile and the upper pile are pressed against the packing member provided at the connecting port in a state where the upper part of the lower pile and the upper pile are coupled to the connecting port. There is no fear of leakage of the grout material and the grout re-supply pressure can be maintained uniformly and continuously.

1 is a schematic front view showing an example in which the present invention is installed during rotary excavation;
2 is an external perspective view showing a preferred embodiment of a file for supporting a vibrationless, noise-free, non-clogging structure provided by the present invention.
FIG. 3 is a sectional view showing a configuration of a coupled portion of a lower file and an upper file,
FIG. 4 is a perspective view showing a state where excavation bits are separated from the lower file of the present invention. FIG.
Fig. 5A is a cross-sectional view of Fig. 4, and shows a state in which the blocking plate is in close contact with the through-
Fig. 5B is a cross-sectional view of Fig. 4, showing a state in which the blocking plate is spaced apart from the through-
Figure 6 is a state cross-sectional view of the lower file or upper file of the present invention,
FIG. 7 is a block flow diagram according to a file construction method for supporting a vibration-free, noise-free, non-clutter-
Fig. 8 is a schematic flowchart of operations according to Fig. 7

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings, which illustrate a non-vibration, noiseless, non-clutter-free structure supporting file and a construction method.

1 is a schematic front view showing an example in which the present invention is installed at the time of rotary excavation.

The rotary excavator 100 is mounted on a rotary excavator 100 of a self-contained type as shown in the drawing. The rotary excavator 100 includes a driving part And a guide 130 for guiding a file is fixed to the lower end of the lead 110. [

The swivel 140 is coupled to the upper portion of the driving unit 120 and the grout re-supply pipe 150 is connected to the swivel 140. The lower portion of the driving unit 120 is connected to the coupling 200 And a grout material supplied through the swivel 140 is supplied through a supply hole 210 formed at the center of the rotating connector 200.

The rotary excavator 100 constructed as described above is a commonly used construction equipment and the present invention is characterized in that the structure supporting file 1 is mounted on the connecting port 200 of the rotary excavator 100 and the ground is pierced So that it can be buried and buried.

FIG. 2 is a perspective view showing a preferred embodiment of a file 1 for supporting a vibration-free, noiseless, and non-clay-capable structure provided by the present invention. FIG. FIG. 4 is a perspective view showing a state in which the excavating bit 5 is separated from the lower pile 2 of the present invention. FIG.

The structure supporting file (1) provided in the present invention has a basic structure of the lower file (2) and is configured so that one or more upper files (10) can be connected and used depending on the ground characteristics.

The lower pile 2 is formed by forming a screw 4 on the lower outer periphery of the body 3 of the pipe structure and mounting the excavation bit 5 on the lower end and forming a key 6 on the upper outer edge, The driving unit 120 may be coupled to the coupling unit 200, which is coupled to the driving unit 120.

The upper file 10 coupled to the upper side of the lower file 2 has a key 12 formed on the upper outer edge of the upper file 10 and connected to the coupling 200 connected to the driving part 120 of the rotary excavator 100 So as to be driven in combination.

The connection between the lower file 2 and the upper file 10 is achieved by providing an annular ring 7 inside the upper portion of the through hole 2a of the lower file 2 and by inserting the through hole 10a of the upper file 10, And a connecting ring 11 is provided on the lower side so that the ground portion of the lower pile 2 and the upper pile 10 are welded at a full circumference while the connecting ring 11 is placed on the pile ring 7.

That is, when the connection ring 11 provided at the lower end of the upper file 10 is inserted into the lower file 2 while the lower file 2 is buried in the ground and the upper file 10 is pressed while being rotated, The ground portion of the lower file 2 and the upper portion of the upper file 10 are welded at the same time.

The combination of the upper file 10 and the upper file 10 is achieved by providing an annular ring 7 inside the upper side of the through hole 10a of the upper file 10 and inserting the through hole 10a of the upper file 10, And a connecting ring 11 is provided on the lower side so that the ground portion of the lower pile 2 and the upper pile 10 are welded at a full circumference while the connecting ring 11 is placed on the pile ring 7.

According to the present invention, a screw 4 is formed on the lower outer periphery of the lower pile 2. In the present invention, it is formed in the range of 1 to 2 m above the excavation bit 5.

The screw (4) provides functionality to agitate excavated soil on the side of the excavating bit (5) and the grout material to be supplied, when the compact is rotationally press-fitted into the pile on the soft ground, And the grout material is firmly coupled with the material to perform the function of increasing the supporting force against compression and tensile load.

The excavation bit 5 is symmetrical with respect to the center of the main body 5a with four bit bodies 5b coupled with the bit at the leading end thereof so that the bit is inclined toward the rotation direction of the structure supporting file 1 And the axially central bit body 5b of the four bit bodies 5b is elongated. This configuration is for solving the problems such as breakage of the bit body 5b by dispersing the excavation pressure on the bit body 5b when drilling the ground.

An inner groove 5c is formed on the lower side of the main body 5a so that the body 3 of the lower pile 2 is welded inward and the body 3 is inserted perpendicularly to the main body 5a A bracket 5d on which the mounting groove 5c is formed is disposed and welded to the body 3 and the main body 5a.

At this time, a shield plate recess groove 5e is further formed in the main body 5a and the catch groove 5c, and a shield plate 8 is placed in the shield plate recess groove 5e.

5a, the blocking plate 8 is moved up to the through hole 2a by the earth pressure to form the through hole 2a as shown in FIG. 5a, The blocking plate 8 is separated from the through hole 2a as shown in FIG. 5B when the pile 1 for supporting the structure is lifted. At this time, The grout material is supplied to the excavation soil through the space separated from the grout material.

FIG. 6 is a cross-sectional view illustrating a state in which the lower file 2 or the upper file 10 of the present invention is coupled to the connector 200.

The connector 200 provided in the present invention forms a polygonal shaft part connected to the driving part 120 on the upper side and a key 6 or 12 formed on the lower file 2 or the upper file 10 on the lower side, Thereby forming a T-shaped key engagement groove 220 to be engaged.

An annular packing coupling groove 240 is formed on the upper side of the coupling hole 230 in which the lower file 2 or the upper file 10 is inserted and a packing member 250 such as a soft rubber is coupled thereto, So that the upper surface thereof is brought into close contact with the packing member 250 in a state where the file 2 or the upper file 10 is assembled.

It is preferable that the lower file 2 or the upper file 10 is in a state in which the lower file 2 or the upper file 10 is in a state in which the coupling hole 230 is fitted, assuming that the thickness of the packing member 250 is 20 mm. And is located at 1 to 5 mm into the packing coupling groove 240. As shown in the figure, the packing member 250 is also interposed on the side surface as well as the upper surface of the lower or upper file 2 or 10 to increase the watertightness, thereby providing functionality to prevent leakage of the grout material .

FIG. 7 is a block flow chart according to a method of constructing a file 1 for supporting a vibration-free, noise-free, non-clutter-free structure provided in the present invention, and FIG. 8 shows a schematic operation flowchart according to FIG.

A file (1) for supporting a vibration-free, noise-free, non-clay-resistant structure provided by the present invention is formed by a method of constructing a structure-supporting pile 1 provided in Figs. 1 to 6, that is, a through- A lower pile (2) having a screw (4) formed on the lower outer periphery of the body (3) of the pipe structure, a digging bit (5) mounted on the lower end and a key (6) formed on the upper outer edge; And a combination of a plurality of upper files 10 having a pipe structure in which a through hole 10a is formed so as to be connected to the upper side of the lower file 2 and which has a length, .

(1) The method of constructing the structure is as follows: (1) Preparation for excavation, (2) First drilling, (3) Separation of files, (4) Upper pile connection, (5) Second drilling, Step 7) anchor forming step, and 8) rotary excavator separation step, and each step will be described in more detail below.

1) Preparation stage

Thereby coupling the lower pile (2) to the connector (200).

The key 6 provided at the upper end of the lower pile 2 may be formed in the coupling hole 200 to be inserted into the T-shaped key engagement groove 220. At this time, the grout material is prepared to be supplied to the grout material supply pipe 150 coupled to the swivel 140 coupled to the upper part of the driving part 120.

The grout material is supplied so as to have a constant pressure by a pump which feeds and supplies the high pressure.

2) The first drilling step

When the lower pile 2 is coupled to the connector 200 as described above, the pile is pierced while rotating the lower pile 2 by the rotary excavator 100.

The grout material is supplied in a state where the screw 4 formed on the outside of the lower pile 2 is completely embedded in the ground.

Since the ground can be easily pierced while pressing the lower pile 2 on the upper side of the soft pile 2, it is not necessary to perform the operation such as piling up the pile after the upper pile 2 is moved upward during excavation.

3) File separation phase

The lower pile 2 provided with the excavation bit 5 is rotated and pressed by using the rotary excavator 100 so that the lower pile 2 is completely embedded in the ground, Remove the file (2).

At this time, stop the supply of grout so that there is no leakage of grout.

4) Upper file connection step

The upper part of the upper part of the lower part of the lower part of the pipe 2 is connected to the upper part of the upper part of the pipe 2, (10) are welded together.

The coupling of the upper file 10 is carried out by using a crane provided on the lead 110 so that the coupled portion of the key 12 is upward and the key 12 of the upper end of the upper file 10 is inserted into the coupling hole 200 When the connecting ring 11 provided at the lower end of the upper file 10 is inserted into the lower file 2 and the upper file 10 is pressed while being rotated while the upper file 10 is inserted into the key coupling groove 220, The upper and lower piles 2 and 10 are connected to each other in such a manner that the lower pile 2 and the pile of the upper pile 10 are welded at the same time.

5) Second drilling step

As described above, the upper file 10 is connected to the lower file 2 and the upper key 12 is coupled to the coupling 200 to pierce the structure supporting file 1 while rotating and pressing it.

At this time, when the structure supporting file 1 (the lower file 2 and the upper file 10 has a longer length so that the earth pressure acts strongly and the excavating bit 5 below the lower pile 2 touches the weathered rock, The structure supporting file 1 is moved upward by using the rotary excavator 100 for the protection of the slab 5 and the feeding of the grout material, the piercing operation is temporarily stopped, and the structure supporting file 1 is again rotated Let it bore.

6) Third drilling phase

Third drilling can be done selectively.

That is, when the excavating bit 5 has already reached the rock mass (pumice) in the second drilling step, the upper pile 10 is omitted on the ground until the excavation bit 5 reaches the rock The drilling operation is performed until the excavation bit 5 of the lower pile 2 reaches the rock layer by repeating the above-mentioned file separation step and connecting the upper pile 10 in a completely buried state.

7) Anchor formation step

A structure supporting file (not shown) formed by combining the lower pile 2 and the upper pile 10 in the state where the excavating bit 5 reaches the rock layer through the second piercing step or the third piercing step, The anchor portion 300 of the grout reconstituted structure is formed in the ground above the rock layer by injecting and supplying the grout with a strong pressure while raising and lowering the whole of the anchor portion 100 in the axial direction of 1 to 2 m using the rotary excavator 100.

The formation of the anchor portion 300 is performed in such a manner as to surround the periphery of the screw 4 formed in the lower pile 2 of the pile 1 for supporting the structure and to increase the supporting force against the compression and tensile load of the pile 1 for supporting the structure To provide functionality.

8) Removal of rotary excavator

After the anchor part 300 is formed, the excavating bit 5 may be lowered to touch the rock, and the upper pile 10 may be separated from the rotary excavator 100 at the connecting part 200.

Then, the lower pile 2 is joined to the connection port 200 of the rotary excavator 100, and the structure supporting pile 1 is continuously installed in the above-described order.

The structure supporting file 1 constructed as described above is formed by cutting a portion exposed to the ground during the terra corrugated construction and welding the reinforcing bars into the through hole 2a A slab is made of concrete, and the slab is supported by a plurality of structural support files 1, which are filled with grout inside and outside the slab, so that the structure can be safely supported .

According to the present invention, there is provided a file (1) for supporting a structure free of noise, noiseless and non-cladding, and a method of constructing the same in accordance with the present invention, a place where the middle- or large-sized rotary excavator (100) It is possible to work effectively in places where there is a possibility of complaints, so that high-rise buildings can be constructed even in areas where existing work is impossible.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. Therefore, the scope of protection of the present invention should not be limited to the described embodiment, but should be determined by the equivalents as well as the claims that follow.

1: Structure supporting file 2: Lower file
2a: through hole 3: body
4: Screw 5: Excavation bit
5a: main body 5b: bit body
5c: Anchor groove 5d: Bracket
5e: Cut-out plate groove 6: Key
7: guard ring 8: shield plate
10: upper file 10a: through hole
11: Connection ring 12: Key
100: rotary excavator 110: lead
120: driving unit 130: guide
140: Swivel 150: Grout re-supply pipe
200: connecting port 210: supply hole
220: key engagement groove 230: engaging hole
240: packing coupling groove 250: packing member
300: anchor portion

Claims

1. A structure supporting file (1) capable of vibration-free, noiseless, and non-cladding;
The driving unit 120 of the rotary excavator 100 is provided with a screw 4 on the lower outer periphery of the body 3 of the pipe structure and a digging bit 5 on the lower end thereof, (2) so as to be assembled and driven in a connector (200) coupled to the main body (2);
The excavation bit 5 is symmetrical with respect to one bit of the four bit bodies 5b with the bit connected to the lower end of the main body 5a and inclined so that the bit is directed in the rotation direction of the structure supporting file 1 And the axially central bit body 5b of the four bit bodies 5b is elongated;
An installation groove 5c is formed at the lower side of the main body 5a to weld the main body 5a with the main body 5a inserted therein and an installation groove 5c into which the main body 5a is inserted is formed A bracket 5d is disposed and welded to the body 3 and the main body 5a;
A shielding plate 8 is disposed in the shield plate housing groove 5e so that the ground is punctured by the excavating bit 5, The blocking plate 8 cuts off the through hole 2a to cut off the supply of the grout material so that the blocking plate 8 is separated from the through hole 2a when the excavating bit 5 is separated from the ground, And a non-vibration-free, non-cladding-capable structure support file.

The method of claim 1,
A key 12 is formed on an upper outer edge of the upper part of the lower part 2 so as to extend the length of the upper part of the lower part 2 to be assembled to the coupling part 200 coupled to the driving part 120 of the rotary excavator 100, Combining the plurality of upper files (10) formed;
The connection between the lower file 2 and the upper file 10 is achieved by providing an annular ring 7 inside the upper portion of the through hole 2a of the lower file 2 and by inserting the through hole 10a of the upper file 10, And a grounding portion of the lower pile 2 and the upper pile 10 is welded at a front side with the connection ring 11 being provided on the lower side so that the connection ring 11 is placed on the cage ring 7 Non-vibration, noiseless, non-cladding structure supporting files.

The method of claim 1,
Wherein the screw (4) formed on the lower outer periphery of the lower pile (2) is formed in a range of 1 to 2 m above the excavation bit (5).

delete

The method according to claim 1 or 2,
The upper and lower ends of the lower and upper piles 10 and 20 formed by forming the keys 6 and 12 on the upper outer edge of the rotary excavator 100 to be assembled and driven by the connector 200 coupled to the driving part 120 of the rotary excavator 100, Wherein the grouting material is pressurized by a packing member (250) installed in the connector (200) in a state of being coupled to the connector (200) so as to prevent leakage of the grout material.

A screw 4 is formed on the lower outer periphery of the body 3 having a pipe structure in which a through hole 2a is formed and a lower file 5 is mounted on the lower end and a key 6 is formed on the upper outer edge, (2); A non-vibration, noiseless, and noiseless combination consisting of a combination of a plurality of upper files 10 having a pipe structure in which a through hole 10a is formed so as to be connected to the upper side of the lower file 2, A file for supporting non-clay structures (1) as a construction method;
A key 6 provided at the upper end of the lower pile 2 on which the excavating bit 5 is mounted at the lower end is connected to a connecting port (not shown) coupled to the driving part 120 of the rotary excavator 100 200 and a grout material supply pipe 150 coupled to a swivel 140 coupled to an upper portion of the drive unit 120 so that the grout material can be supplied to the grout material supply pipe 150;
A first drilling step of drilling the ground while rotating the lower pile 2 with the rotary excavator 100 while simultaneously supplying the grout material to the inside of the pile;
A file separating step of separating the lower file (2) from the connector (200) with the lower file (2) provided with the excavation bit (5) completely embedded in the ground;
The upper file 10 having the same diameter as the lower file 2 at the upper end of the separated lower file 2 and having a key 12 coupled to the upper end of the coupling 200 is welded and coupled Connecting the upper file (10);
A second drilling step of coupling the upper key 10 of the upper file 10 to the connector 200 to perforate the structure supporting file 1 while rotating it;
A third drilling step in which the excavating bit (5) of the lower pile (2) reaches the rock layer by repeating the file separating step and the upper pile connecting step with the upper pile (10) completely buried in the ground;
The entire structure supporting file 1 constituted by the combination of the lower pile 2 and the upper pile 10 in the state where the excavating bit 5 reaches the rock layer is entirely pierced by the rotary excavator 100 Anchor forming step of forming a concrete anchor portion 300 in the ground above the rock layer by supplying the grout material while being raised and lowered in the axial direction of 1 to 2 m;
And a rotary excavator separating step of separating the upper pile 10 from the connecting hole 200 by lowering the excavating bit 5 so as to contact the rock after forming the anchor part 300, , A method for constructing a file for supporting a non-clay structure.