KR101746432B1 - Bucket plate footing structure therewith and methed for cunstructing thereof - Google Patents

Abstract

Disclosed is a bucket plate foundation structure and a method of constructing the foundation structure. The disclosed invention comprises: a transverse plate seated between a superstructure and a ground; A vertical plate extending downward from the transverse plate; And a swash plate extending downward from the transverse plate and extending obliquely toward the outside of the transverse plate.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a bucket plate foundation structure,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bucket plate foundation structure and a basic construction method thereof, and more particularly, to a bucket plate foundation structure and a foundation construction method for securing a supporting force for supporting various structures on a foundation foundation.

In addition to industrial developments, various industrial facilities and residential facilities as well as various facilities and structures related thereto have become necessary. Accordingly, when these structures are installed, it is necessary that the foundation ground has a sufficient supporting force to support the structure.

Generally, when a load is applied to the ground, the stress increases in the ground, and when the stress exceeds the shear strength of the ground, the ground reaches the fracture state. The maximum load that can be supported by the ground is called the bearing capacity.

In order to secure the bearing capacity of the structure, securing the bearing capacity of the foundation to the structure is an essential consideration for the safety of the structure. According to the degree of the compressibility of the ground, a method divided into a shallow foundation and a deep foundation is usually used

In recent years, there have been many cases in which not only good quality ground but also a weak ground such as a river alluvial bed composed of soft clay and a tidal flat on the beach have to be installed. Therefore, various methods for safely installing the foundation on such a weak soil layer are required.

Generally, the foundation is composed of the most simple and universal concrete expansion bases (base foundation) that increase the bearing capacity because the high-quality ground is located near the surface, and the base section is enlarged, and the ground of good quality is not located near the ground, (Deep foundation) which transfers the load through the pile to the high quality ground within the pile.

The shallow foundations are those used in relatively strong grounds, in which the foundation slab of the structure is placed directly in contact with the ground. This is the basis for a type of direct transfer of loads from the superstructure to the ground, which is the basis for direct installation when there is no compressible layer below the appropriate soil bed.

At the time of constructing such a shallow foundation, a method of enlarging the base section to increase the supporting force is used.

The enlargement of the foundation section means that the width of the foundation is widened and the thickness of the foundation is thickened, leading to a reduction in the bearing capacity per basic unit area due to an increase in the self weight of the foundation structure.

In addition, in order to greatly expand the cross-sectional area of the foundation, it is necessary to use a large-area paper for laying the foundation, to increase the excavated soil amount during excavation, and to increase the amount of backfill construction, And the paper can not be constructed in many cases.

On the other hand, a deep foundation refers to a case where, from the bottom of a structure, a high-quality foundation is located at a depth of about 4 to 5 times the foundation width to distinguish it from a shallow foundation.

A deep foundation is a foundation method in which a high quality ground is relatively deeply located at the bottom of the structure and another foundation structure such as a pile is installed to transfer the load of the structure to a high quality ground and the load is transmitted through the foundation structure. A typical method of foundation is pile foundation.

During the construction of such a deep foundation, a method of increasing the bearing capacity of the foundation is used as the sum of the end bearing capacity of the pile end and the friction supporting force around the pile.

Such a deep foundation, unlike a shallow foundation, is difficult to install if the pile cross section is large, so that it is difficult to increase the supporting force by increasing the foundation cross section. Therefore, generally, a plurality of small pile piles are installed. As the number of installation increases, construction cost increases greatly, resulting in poor economical efficiency.

It is an object of the present invention to provide a bucket plate foundation structure which is simple in construction and requires a small construction time and construction cost to provide a supporting force for stably supporting a structure with high economic efficiency and a method for the foundation construction .

A bucket plate according to one aspect of the present invention comprises: a transverse plate that is seated between an upper structure and a foundation; A vertical plate extending downward from the transverse plate; And an inclined plate extending downward from the transverse plate and extending obliquely outwardly of the transverse plate.

Preferably, the swash plate is formed to be inclined so as to surround the vertical plate.

In addition, the present invention may further include a rib formed to connect the vertical plate and the swash plate.

In addition, the present invention may further comprise a stud protruding from the top of the transverse plate.

Further, it is preferable that the present invention is formed of a metal plate of a rigid material.

According to another aspect of the present invention, a bucket plate foundation structure includes: a transverse plate that is seated between a structure and a foundation layer; a vertical plate extending downward from the transverse plate; A bucket plate including a swash plate extending obliquely outwardly of the transverse plate; And a pile coupled to the bucket plate.

The pile also includes an activity-inhibiting pile; Wherein the activity-preventing pile is formed to have a pipe shape having a hollow inside thereof; Wherein the activity-preventing pile includes a spray hole for communicating the inside of the activity-preventing pile with the outside; Preferably, the upper end of the anti-activity pile is in communication with the space above the bucket plate.

The bucket plate is formed with a pile mounting portion on which the anti-slip pile is mounted so that the inside of the slip pile may communicate with the outside of the bucket plate; Preferably, the pile mounting portion is provided with a screw nipple for supplying the ground improvement and performance improving material to the anti-pile.

Preferably, the pile includes a ready-made pile which is coupled to the bucket plate to support the bucket plate to the support layer.

Preferably, the bucket according to the present invention further includes a structure base supported by the bucket plate to support the upper structure.

The bucket plate may further include a plurality of studs protruding from an upper portion of the transverse plate, The foundation of the structure is preferably formed by arranging reinforcing bars, embedding the studs, and pouring concrete.

According to still another aspect of the present invention, there is provided a method of constructing a foundation using a bucket plate, the method comprising: installing a pile on a ground; Connecting the pile to the bucket plate and installing the bucket plate; And filling the filler material around the bucket plate.

The pile also includes an activity-inhibiting pile; And further grouting the foundation of the bucket plate by injecting a ground improvement and performance improving material into the activity preventing pile.

In addition, the present invention may further comprise the step of sucking the soil improvement and performance improving material injected into the anti-activity pile and recovering the soil improvement and performance improving material from the anti-activity pile.

The pile also includes a ready file; In the step of installing the pile on the ground, it is preferable that the foundation pile is provided on the support layer.

Preferably, the bucket plate further includes a base for supporting the upper structure on the upper portion of the bucket plate.

In addition, the step of installing the foundation may include: providing a plurality of studs protruding from the upper side of the transverse plate; Disposing the reinforcing bars; And filling the concrete with the stud and the reinforcing steel.

Also, it is preferable that the reinforcing bars to be embedded when the concrete is poured include reinforcing bars of the upper structure installed on the foundation of the structure.

In addition, it is preferable that the inside of the anti-activity pile is communicated with the upper part of the foundation of the structure.

According to the bucket plate foundation structure and the basic construction method of the present invention, since the foundation structure for supporting the upper structure can be easily and quickly installed only by installing the completed bucket plate on the foundation layer, Compared with the structure, it provides the advantages of simple construction and short construction time.

In addition, since the invention requires only a minimum area of paper for placing the bucket plate on the soil layer, it is easy to secure the paper, so there are few restrictions on the installation position and the construction time and construction cost are low, There is an advantage to be improved.

In addition, since the self-weight of the foundation structure can be greatly reduced as compared with the foundation structure using the conventional concrete structure, the invention can increase the bearing capacity per unit area of the foundation layer and improve the stability of the foundation structure installed thereon and the soil structure supporting the foundation structure Can be improved.

1 is a perspective view showing a bucket plate according to a first embodiment of the present invention.
2 is a sectional view showing a bucket plate according to a first embodiment of the present invention.
FIG. 3 is a view showing an installation state of the bucket plate according to the first embodiment of the present invention.
4 is a perspective view showing a bucket plate according to a second embodiment of the present invention.
5 is a perspective view showing a bucket plate according to a third embodiment of the present invention.
6 is a sectional view showing a bucket plate according to a third embodiment of the present invention.
7 is a perspective view showing a first example in which an upper structure is installed on a bucket plate. (H beam)
8 is a perspective view showing a second example in which an upper structure is installed on a bucket plate. (Concrete)
Fig. 9 is a cross-sectional view showing a cutaway portion of a combination of the bucket plate and the upper structure shown in Fig. 8. Fig.
10 is a view showing the structure of the foundation structure shown in FIG.
11 is a perspective view showing a third example in which the bucket plate is provided with an upper structure.
12 is a flowchart illustrating a basic construction process according to the first embodiment of the present invention.
FIG. 13 is a view schematically showing a construction state of the foundation construction method according to the first embodiment of the present invention. FIG.
FIG. 14 is a view schematically showing a state of construction by a basic construction method according to the prior art.
15 is a flowchart illustrating a basic construction process according to a second embodiment of the present invention.
FIG. 16 is a view schematically showing a construction state by a foundation construction method according to a second embodiment of the present invention. FIG.
17 is a flowchart illustrating a process of installing a foundation structure according to a second embodiment of the present invention.
FIG. 18 is a view schematically showing a state of construction by a basic construction method according to the prior art.
19 is a view schematically showing another example of a construction state by a foundation construction method according to a second embodiment of the present invention.
20 is a view schematically showing a state of construction by a basic construction method according to the prior art.
21 is a flowchart illustrating a basic construction process according to a third embodiment of the present invention.
22 is a view schematically showing a construction state by a foundation construction method according to a third embodiment of the present invention.
23 is a view schematically showing a construction state by a basic construction method according to the prior art.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a bucket plate foundation structure and a base construction method according to the present invention will be described with reference to the accompanying drawings. For convenience of explanation, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

FIG. 1 is a perspective view showing a bucket plate according to a first embodiment of the present invention, FIG. 2 is a sectional view showing a bucket plate according to a first embodiment of the present invention, and FIG. 3 is a cross- FIG. 5 is a view showing an installation state of the bucket plate according to the first embodiment.

1 to 3, a bucket plate 10 according to a first embodiment of the present invention is installed between an upper structure 1 such as a pier, a column, and a building, and a soil layer 2, And is formed of a rigid metal plate.

The bucket plate 10 is installed in a manner such that the soil layer 2 is seated on the upper part of the area excavated to a predetermined width and depth and is filled with a filler material such as soil, (Not shown).

That is, the bucket plate 10 is embedded in the filler material 3 in such a manner that both the outside and the inside are filled with the filler material 3, and the filler material 10 filled in the top of the soil material layer 2 3 serve to cause an effective stress for stabilizing the state of the soil layer 2 provided with the bucket plate 10 to act on the soil layer 2.

According to the present embodiment, the bucket plate 10 includes the transverse plate 11, the vertical plate 13, and the inclined plate 15. At this time, the bucket plate 10 may be provided in a form in which the transverse plate 11, the transverse plate 13, and the inclined plate 15 are integrally formed, and the transverse plate 11, the transverse plate 13, May be separately formed and then joined together.

The transverse plate 11 is seated between the upper structure 1 and the soil layer 2 and is formed to have sufficient thickness and strength to support the upper structure 1. [

The transverse plate 11 is installed in the form of a transversely seated form in the filling material 3 such as soil, gravel or the like which is filled in the top of the soil layer 2 and has a vertical load acting through the upper structure 1 .

The vertical plate 13 is formed to extend downward from the horizontal plate 11 and extends downward from the edge of the horizontal plate 11. A space is formed in a region surrounded by the transverse plate 11 and the transverse plate 13.

The vertical plate 13 is inserted into the filler 3 in the longitudinal direction and serves to support the lateral stress acting on the lateral plate 11 supporting the upper structure 1. [

The swash plate 15 is formed to extend downward from the transverse plate 11 and extends obliquely toward the outer side of the transverse plate 11. The swash plate 15 is formed to extend downward from the edge of the transverse plate 11 and is formed to be inclined so as to surround the transverse plate 13. [ A space is formed in a region surrounded by the swash plate (15) and the vertical plate (13).

This swash plate 15 allows the buckle plate 10, which supports the vertical load acting through the upper structure 1, to increase the effective stress by an area and a penetration depth of contact with the soil layer 2, So that the passive earth pressure acting on the soil layer 2 under the plate 10 is increased.

The swash plate 15 is inclined so that only the area of the lower portion of the bucket plate 10 where the soil layer 2 and the bucket plate 10 contact with each other is increased not by both the upper portion and the lower portion of the bucket plate 10, By increasing the working area of the vertical load while suppressing an increase in the vertical load acting on the soil layer 2, the passive earth pressure acting on the soil layer 2 can be increased more effectively.

In addition, the swash plate 15 is configured to increase the contact area of the bucket plate 10 with the soil layer 2, thereby increasing the passive earth pressure acting on the soil layer 2 and the applied shear stress .

As a result, the passive earth pressure per unit area acting on the surface of the soil layer 2 is increased and the area and depth of the effective stress applied through the filler 3 filled in the upper part of the soil layer 2 are increased, Can effectively stabilize the state of the soil layer 2 provided thereon.

The bucket plate 10 of the present embodiment as described above can easily and quickly install the foundation structure for supporting the upper structure 1 only by installing the completed bucket plate 10 on the foundation 2 , It provides advantages such as simple construction and short construction time compared to a conventional installation structure using a concrete structure.

According to the bucket plate 10 of the present embodiment as described above, since only a minimum area of paper for placing the bucket plate 10 on the soil layer 2 is required, it is easy to secure the paper, And the excavated soil volume is small when excavated, so that the construction period and the construction cost are reduced and the economical efficiency is improved.

Further, according to the bucket plate 10 of the present embodiment as described above, since the self weight of the foundation structure can be greatly reduced as compared with the foundation structure using the conventional concrete structure, the bearing capacity per unit area of the foundation layer 2 can be increased It is possible to improve the stability of the superstructure 1 installed thereon and the soil layer 2 supporting the superstructure 1.

Here, the bucket plate 10 having the above-described structure is merely a preferred embodiment of the present invention, and various embodiments can be substituted for them.

FIG. 4 is a perspective view showing a bucket plate according to a second embodiment of the present invention, FIG. 5 is a perspective view showing a bucket plate according to a third embodiment of the present invention, FIG. 6 is a cross- Sectional view of the bucket plate according to the present invention

Here, the same reference numerals as those shown in the drawings denote the same members having the same function, and a duplicate description will be omitted here.

Referring to FIG. 4, the bucket plate 20 according to the second embodiment of the present invention is further provided with a rib 27 formed to connect between the vertical plate 13 and the swash plate 15. As shown in FIG.

As the vertical plate 13 and the swash plate 15 are connected by the ribs 27, the overall structural strength of the bucket plate 20 is improved so that the vertical direction load acting on the upper structure 1 Can be more stably supported.

5 and 6, a pile mounting portion 39 is formed on the bucket plate 30 according to the third embodiment of the present invention. In this bucket plate 30, an anti-activity pile 120 is mounted.

The anti-activity pile 120 is installed so as to be embedded in the ground, more specifically the soil layer 2, and its upper end is coupled to the bucket plate 30. [

The activity preventing pile 120 is formed to have the shape of a pipe having a hollow 121 formed therein. On the side of the activity preventing pile, the inside of the activity preventing pile 120, in which the hollow 121 is formed, And a discharge hole 123 is formed to the outside of the pile 120.

The above-mentioned anti-activity pile 120 is mounted on the bucket plate 120 by mounting the upper end thereof to the pile mounting portion 39.

The pile mounting part 39 is formed to protrude downward from the side plate 11 and the anti-activity pile 120 is mounted on the pile mounting part 39 in such a manner that the anti- .

A through hole 39a is formed in the inside of the pile mounting part 39 to allow the inside of the buckle plate 30 to protrude from the inside of the buckage plate 30. The inside of the activity preventing pile 120 is inserted through the through hole 39a So that it can communicate with the outside of the bucket plate 30.

A screw nipple 125 may be mounted on the pile mounting portion 39. The screw nipple 125 can be removably mounted to the pile mounting portion 39 through a screw connection at the top of the transverse plate 11.

The screw nipple 125 connects the line for supplying the ground improvement and performance improving material to the pile mounting portion 39 so that the ground improvement and performance improving material can be supplied to the activity preventing pile 120.

FIG. 7 is a perspective view showing a first example in which an upper structure is installed in a bucket plate, and FIG. 8 is a perspective view showing a second example in which an upper structure is installed in the bucket plate. 9 is a cross-sectional view showing a part of a combined assembly of the bucket plate and the upper structure shown in FIG. 8, FIG. 10 is a view showing the structure of the foundation structure shown in FIG. 8, 3 is a perspective view showing a third example in which a structure is installed.

Hereinafter, the installation structure between the bucket plate and the upper structure will be described with reference to FIGS. 7 to 11. FIG.

Referring first to FIG. 7, the bucket plate 30 may be directly coupled with the upper structure 1 provided in the form of an H beam to form the foundation of the structure.

At this time, the coupling between the bucket plate 30 and the upper structure 1 can be made via the bracket B, and the coupling between the bucket plate 30 and the bracket B can be achieved through welding, ) And the superstructure 1 can be achieved through bolt connection.

The upper structure 1 is formed with a cutout (not shown) to secure a space for mounting the screw nipple 125 (see FIG. 5) through the through hole 39a exposed to the upper portion of the bucket plate 30 .

8, a structure foundation may be formed in a structure in which a structure foundation 130 is installed on an upper part of a bucket plate 30 and an upper structure 1 is installed on a foundation foundation 130 .

The structure base 130 is installed to be supported by the bucket plate 30 to support the upper structure 1 and can be installed in the following manner.

As shown in Figs. 9 and 10, a plurality of studs 40 are provided on the side plate 11 of the bucket plate 30. As shown in Fig.

A plurality of studs 40 are installed to protrude from the upper portion of the transverse plate 11 by welding or the like so that a plurality of studs 40 are spaced apart from each other in a region where the structure foundation 130 is to be installed, Thereby forming a protruded structure.

The reinforcement 50 is placed on the upper portion of the bucket plate 30 on which the stud 40 is installed and the concrete 40 is embedded in the stud 40 and the reinforcing bar 50 to form a concrete structure 130 Is installed.

At this time, the coupling surface between the bucket plate 30 and the structure foundation 130 can be reinforced by the coupling between the stud 40 and the concrete installed in the bucket plate 30, (130) can be coupled with strong coupling force.

Also, the strength of the structure foundation 130 can be strengthened by the connection between the concrete 50 and the reinforced concrete 50 laid inside the structure foundation 130.

In this process, when the reinforcing bars (not shown) extending downward from the upper structure 1 are buried together in the concrete casting process, the bonding force between the foundation 130 and the upper structure 1 can be strengthened, The supporting force against the upper structure 1 can be further improved.

Referring to FIG. 11, the bucket plate 30 may be combined with the upper structure 1 'provided in the form of a wooden column to form the foundation of the structure.

At this time, the coupling between the bucket plate 30 and the coupling structure H can be achieved through welding, and the coupling between the bucket plate 30 and the coupling structure H can be achieved through welding, The coupling between the coupling holder H and the upper structure 1 'can be achieved by the upper structure 1' being fitted in the coupling holder H. [

FIG. 12 is a flow chart showing a basic construction process according to the first embodiment of the present invention, FIG. 13 is a view schematically showing a construction state by the basic construction method according to the first embodiment of the present invention, FIG. Fig. 2 is a schematic view showing a construction state by a basic construction method according to the technology. 15 is a flowchart showing a basic construction process according to a second embodiment of the present invention. FIG. 16 is a view schematically showing a construction state by a basic construction method according to a second embodiment of the present invention, 1 is a view schematically showing a construction state by a basic construction method according to the prior art. 18 is a flowchart illustrating a process of installing a foundation structure according to a second embodiment of the present invention. FIG. 19 is a view schematically showing another example of a construction state by the foundation construction method according to the second embodiment of the present invention And FIG. 20 is a view schematically showing a construction state by a basic construction method according to the related art. FIG. 21 is a flow chart showing the basic construction process according to the third embodiment of the present invention, FIG. 22 is a view schematically showing a construction state by the basic construction method according to the third embodiment of the present invention, 1 is a view schematically showing a construction state by a basic construction method according to the prior art.

Hereinafter, the structure, operation, and basic construction method of the bucket plate foundation structure will be described with reference to Figs. 12 to 23. Fig.

12 and 13, in order to construct the bucket plate foundation structure 100 according to the first embodiment of the present invention, firstly, in the region where the bucket plate foundation structure 100 is to be constructed, And the pile is installed on the ground at the upper part of the excavated position (S110).

At this time, the type of the pile installed on the ground can be changed depending on the type of the structure installed on the upper part of the bucket plate foundation structure 100.

In this embodiment, it is exemplified that the structure provided on the upper part of the bucket plate foundation structure 100 is a relatively lightweight structure such as a sperm. In this case, as a pile installed on the ground, A pile 120 may be applied.

When the installation of the pile (hereinafter referred to as "activity prevention pile") is completed, the pile 120 for preventing the activity is connected to the bucket plate 30 and the bucket plate 30 is installed (S120).

The connection between the anti-activity pile 120 and the bucket plate 30 can be achieved by fitting the upper end of the anti-activity pile 120 to the pile mounting portion 39 (see FIG. 6).

6) is connected to the through hole 39a (see FIG. 6) in the pile mounting portion 39 and is mounted on the bucket plate 30 in the form of being communicated with the through hole 39a do.

When the bucket plate 30 is mounted on the top layer 2 of the bucket plate 30 on which the anti-movement piles 120 are installed, the installation of the bucket plate 30 is completed.

Since only a minimum area of paper for placing the bucket plate 10 on the soil layer 2 is required in this process, it is easy to secure the paper, so that there are few restrictions on the installation position and the amount of excavated soil during excavation is small. The construction cost is low and the economical efficiency can be improved.

After the upper structure 1 is installed on the upper part of the bucket plate 30, the area surrounding the bucket plate 30, that is, the area where the soil layer 2 is excavated The filler material 3 is filled and the bucket plate 30 is buried in the ground (S130).

Meanwhile, when reinforcement is required for the surrounding soil layer 2 in which the anti-activity pile 120 is embedded, a step of grouting the foundation of the bucket plate by injecting the soil improvement and performance improving material into the anti-activity pile 120 is added (S140).

This process is performed in the state where the ground improvement and performance improving material supply line (not shown) is connected to the screw nipple 125 (see FIG. 6) provided on the bucket plate 30 so as to be connected to the pile mounting portion 39, The ground improvement and performance improving material supplied through the performance improving material supply line is injected into the inside of the activity preventing pile 120 and the ground improving and performance improving material injected into the activity preventing pile 120 is injected into the injection hole 123, To the base of the bucket plate.

The supporting force of the soil layer 2 can be effectively reinforced by grouting the area where reinforcement is required in the soil layer 2 by injecting the soil improvement and performance improving material into the activity preventing pile 120.

The ground improvement and performance improving material is sprayed onto the soil layer 2 through the anti-activity pile 120 as described above, and the soil improvement and performance improving material injected into the activity preventing pile 120 is sucked into the anti- 120) may be further added (S150).

Thus, by collecting the soil improvement and performance improving material from the anti-activity pile 120 before the soil improvement and performance improving pile 120 is solidified in the inside of the pile 120, it is possible to prevent the passage for spraying the soil improvement and performance improving material So that the grouting process, which is performed by injecting the soil improvement and performance improving material into the activity preventing pile 120, can be repeatedly performed as needed.

The bucket plate foundation structure 100 of the present embodiment, which is constructed as described above, can provide an economical and stable foundation structure having a sufficient supporting force by a simple construction of a relatively lightweight structure such as sperm.

According to the basic construction method of the present embodiment using the bucket plate foundation structure 100, the bucket plate foundation structure 100 is used to improve the shear strength and thereby the height of the structure foundation 130 The self weight can be reduced.

In other words, the basic construction method of the present embodiment improves the shear strength by using the bucket plate foundation structure 100, thereby reducing the height and weight of the structure foundation 130 compared to the conventional foundation construction method as shown in Fig. 14 Thereby reducing the excavation depth and the excavated soil amount compared to the conventional foundation construction method. Thus, the construction period and the construction cost are reduced and the economical efficiency is improved.

15 and 16, in order to construct the bucket plate foundation structure 200 according to the second embodiment of the present invention, the bucket plate foundation structure 200 is first formed in a region where the bucket plate foundation structure 200 is to be constructed, And the pile is installed on the ground at the upper part of the excavated position (S210).

In this embodiment, the structure installed on the upper part of the bucket plate foundation structure 200 is a relatively heavy structure such as a pier supporting the bridge. In this case, as the pile installed on the ground, And the established file 110 may be applied together.

The pest 120 may be embedded in the foundation 2 as in the first embodiment of the present invention and the foundation pile 110 may be embedded in the foundation 2 so that its lower end is supported by the support 4 .

In this case, a plurality of piles 120 may be installed to be spaced apart from each other in consideration of the weight of the structure and the area where the foundation structure is to be installed, and the piles 120 may be installed between the piles 110 .

When the installation of the ready-made pile 110 and the activity-preventing pile 120 is completed, the ready-made pile 110 and the anti-pile 120 are connected to the bucket plate 30 and the bucket plate 30 is installed (S220) .

The connection between the ready file 110 and the bucket plate 30 is achieved by joining the upper end of the ready file 110 to the lower surface of the bucket plate 30 or by connecting the ready file 110 to the bucket plate 30 in the vertical direction And the bucket plate 30 may be coupled with the preformed file 110 while passing through the bucket plate 30.

When the bucket plate 30 is mounted on the top layer 2 provided with the anti-activity pile 120, the bucket plate 30 is completed.

This allows the bucket plate 30 to be supported on the support layer 4 via the prefabricated pile 110 so that the bucket plate foundation structure 200 providing a more stable bearing force can be installed.

When the installation of the bucket plate 30 is completed, the foundation 130 supporting the upper structure 1 is installed on the bucket plate 30 (S230).

9 and 17, a plurality of studs 40 are protruded on the upper side of the transverse plate 11 (S231), and the reinforcing bars 50 are attached S233), and then the stud 40 and the reinforcing bar 50 are embedded and the concrete is inserted (S235).

It is preferable that the inside of the activity-preventing pile 120 is communicated to the upper part of the foundation 130 formed at this time.

To this end, a through hole 131 (see FIG. 8 (a)) is formed in the inside of the structure base 130 so as to allow the through hole 39a (see FIG. 6) exposed to the upper portion of the bucket plate 30 to communicate with the outside of the structure foundation 130 ) May be formed.

In addition, a cutout (not shown) is formed in the upper structure 1 at a joint portion with the foundation 130 so that the through-hole formed in the foundation 130 may be exposed to the outside of the foundation 130 .

In this way, a passage through which the inside of the activity-preventing pile 120 is communicated to the upper portion of the structure foundation 130 can be formed, and a line for supplying the ground improvement and performance improving material to the activity- So that it can be connected to the restraining pile 120.

Details of the structure and operation of the other structural foundation 130 have been described above, and a description thereof will be omitted here.

15 and 16, the upper structure 1 is installed on the upper part of the foundation 130 installed as described above, and then the area around the bucket plate 30, that is, the soil layer 2 is excavated The filling material 3 is filled into the area where the bucket plate 30 and the structure foundation 130 are buried in the ground (S240).

In addition, when reinforcement is required for the surrounding soil layer 2 in which the anti-activity pile 120 is embedded, a step of grouting the foundation of the bucket plate by injecting the soil improvement and performance improving material into the anti- (S250).

Also, after the ground improvement and performance improving material is sprayed on the soil layer 2 through the anti-pile 120 as described above, the soil improvement and performance improving material injected into the activity preventing pile 120 is sucked, 120) may be added to the soil improvement and performance improving material (S260).

The detailed description of the ground improvement and performance improvement refilling step and the ground improvement and performance improvement re-collecting steps have been described above, and a description thereof will be omitted here.

The bucket plate foundation structure 200 of the present embodiment, which is constructed as described above, can provide a foundation structure having a supporting force for more reliably supporting a relatively heavy structure such as bridge piers and alternations of bridges.

In addition, the bucket plate foundation structure 200 of the present embodiment, which is constructed as described above, has a reduced area formed by pouring concrete compared to a conventional foundation structure using a concrete structure, so that the weight of the foundation structure can be greatly reduced , It is possible to increase the bearing capacity per unit area of the soil layer 2 to improve the stability of the upper structure 1 installed thereon and the soil layer 2 supporting the upper structure 1.

According to the basic construction method of the present embodiment using the bucket plate foundation structure 200, the bucket plate foundation structure 200 is used to improve the shear strength, thereby reducing the height and weight of the structure foundation 130 .

That is, the basic construction method of the present embodiment improves the shear strength of the foundation of the structure supporting the bridge piers and alternations by using the bucket plate foundation structure 200, The height of the foundation 130 and the weight of the foundation 130 can be reduced to reduce the upper load that each foundation file 110 has to bear.

Accordingly, the base construction method according to the present embodiment can provide a stable foundation structure having sufficient supporting force even when only a small number of ready-made piles 110 are installed as compared with the conventional foundation construction method, so that a construction period and a construction cost are reduced, It has an advantage of being improved.

As another example, the bucket plate foundation structure 200 of the present embodiment may be provided as a foundation structure for supporting an alternate lamp that supports both side end portions of a bridge installed adjacently to the ground, as shown in Fig. 19 .

The basic construction method using the bucket plate foundation structure 200 of this type also improves the shear strength of the foundation of the structure supporting the alternate beams supporting both side end portions of the bridge using the bucket plate foundation structure 200, It is possible to provide a stable foundation structure having a sufficient supporting force even when only a small number of ready-made piles 110 are installed compared with the conventional foundation construction method as shown in Fig. 20, so that a construction period and a construction cost are reduced, It has advantages.

21 and 22, the bucket plate foundation structure 300 according to the third embodiment of the present invention can be installed for supporting heavy structures such as buildings.

According to the present embodiment, a plurality of bucket plates 30 determined in consideration of the weight and area of the structure are installed in the lower part of the structure, while the piles 120 installed in the ground and the ready- Can be applied together.

In order to construct the bucket plate foundation structure 300 according to the present embodiment, first, the soil layer 2 is excavated to a predetermined width and depth in an area where the bucket plate foundation structure 300 is to be installed, A pile, that is, a standing pile 110 and an activity-preventing pile 120 are installed on the ground (S310).

In this case, the number of installed piles 110 and the number of installed piles 120 may be determined in consideration of the number of installed bucket plates 30 to be installed and the installation position thereof.

The concrete procedure for installing the standing file 110 and the activity-preventing pile 120 has been described in the above embodiment, and a detailed description thereof will be omitted here.

When the installation of the ready-made pile 110 and the activity-preventing pile 120 is completed, the ready-made pile 110 and the activity-preventing pile 120 are connected to the plurality of bucket plates 30 and the plurality of bucket plates 30 (S320).

The installation position and the number of the bucket plate 30 can be determined in consideration of the weight and the area of the structure and the connection between the buoy plate 110 and the bucket plate 30 and the connection between the activity prevention pile 120 and the bucket plate 30 ) Have been described in detail above, so a detailed description thereof will be omitted here.

When the bucket plate 30 is installed as described above, the foundation 130 supporting the upper structure 1 is installed on the bucket plate 30 (S330), and the area around the bucket plate 30, that is, The filler material 3 is filled in the area where the soil layer 2 is excavated and the bucket plate 30 and the foundation foundation 130 are buried in the ground at step S340.

In addition, when reinforcement is required for the surrounding soil layer 2 in which the anti-activity pile 120 is embedded, a step of grouting the foundation of the bucket plate by injecting the soil improvement and performance improving material into the anti- (S350).

Also, after the ground improvement and performance improving material is sprayed on the soil layer 2 through the anti-pile 120 as described above, the soil improvement and performance improving material injected into the activity preventing pile 120 is sucked, 120 may be further added (S360) to recover the soil improvement and performance improving material.

The above-described processes have been described in detail in the above-mentioned embodiments, and a description thereof will be omitted here.

The bucket plate foundation structure 300 of the present embodiment, which is constructed as described above, can provide a foundation structure having a supporting force for more stably supporting a heavy structure such as a building or the like.

According to the basic construction method of the present embodiment using the bucket plate foundation structure 300, the bucket plate foundation structure 300 is used to improve the shear strength, thereby reducing the height and weight of the structure foundation 130 .

That is, the base construction method of the present embodiment improves the shear strength of the structure foundation supporting the building or the like by using the bucket plate foundation structure 300, The height and the weight of the foundation pile 110 can be reduced to reduce the upper load that each foundation pile 110 has to bear.

Accordingly, the base construction method according to the present embodiment can provide a stable foundation structure having sufficient supporting force even when only a small number of ready-made piles 110 are installed as compared with the conventional foundation construction method, so that a construction period and a construction cost are reduced, It has an advantage of being improved.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand. Accordingly, the true scope of protection of the present invention should be defined by the following claims.

B: Bracket
H: Coupling holder
1,1 ': superstructure
2:
3: Filler
4: Support layer
10, 20, 30: Bucket plate
11:
13: Vertical plate
15:
27: rib
39:
39a: Through hole
40: Stud
50: Rebar
100, 200, 300: bucket plate foundation structure
110: ready file
120: Activity prevention pile
121: hollow
123: Spray hole
125: Screw nipple
130: Structural foundation
131: through hole

Claims (19)

A transverse plate seated between the superstructure and the soil layer;
A vertical plate extending downward from the transverse plate; And
And a bucket plate extending downward from the transverse plate and including a swash plate extending obliquely outwardly of the transverse plate,
The swash plate is inclined to surround the vertical plate so that the soil layer is seated on an upper portion of a region excavated to a predetermined width and depth,
The transverse plate supports the vertical direction load acting on the upper structure by being installed in the lateral direction in the filling material filled in the upper part of the excavated area of the soil layer,
Wherein the vertical plate and the swash plate are installed in a filler filled in the upper portion of the excavated area of the soil layer,
Wherein the vertical plate is installed in the filling material in a longitudinal direction and supports a transverse stress acting on the transverse plate supporting the upper structure,
The buckle plate supporting the vertical load acting through the upper structure increases the effective stress by an area of contact with the soil layer and a depth of penetration, By increasing the earth pressure and by increasing the area of the lower portion of the bucket plate in contact with the soil layer and the bucket plate to increase the area of action of the vertical load while suppressing an increase in the vertical load acting on the soil layer, So that the buoyant plate contact area of the buoy plate is increased to increase the buoyant pressure acting on the buoyant layer and the buoyant buoyant pressure acting on the generated buoyant stress. Plate foundation structure.
delete The method according to claim 1,
Further comprising a rib formed to connect between the vertical plate and the swash plate.
The method according to claim 1,
Further comprising a stud protruding from an upper portion of the transverse plate.
The method according to claim 1,
Wherein the bucket plate base structure is formed of a rigid metal plate.
The method according to claim 1,
Further comprising a pile coupled to the bucket plate.
The method according to claim 6,
The pile including an anti-activity pile;
Wherein the activity-preventing pile is formed to have a pipe shape having a hollow inside thereof;
Wherein the activity-preventing pile includes a spray hole for communicating the inside of the activity-preventing pile with the outside;
Wherein an upper end of the anti-piling pile communicates with a space above the bucket plate.
8. The method of claim 7,
Wherein the bucket plate is formed with a pile mounting portion to which the anti-slipping pile is mounted such that the inside of the pile for preventing movement is in communication with the outside of the bucket plate;
Wherein the pile mounting part is provided with a screw nipple for supplying the ground improvement and performance improving material to the anti-pile.
The method according to claim 6,
Wherein the pile comprises a ready-made pile which is coupled to the bucket plate to support the bucket plate to the support layer.
The method according to claim 6,
Further comprising a structure foundation mounted to be supported by the bucket plate to support the upper structure.
11. The method of claim 10,
Wherein the bucket plate further includes a plurality of studs protruding from an upper portion of the transverse plate;
Wherein the foundation of the structure is formed by reinforcing the reinforcing bars, embedding the studs, and pouring the concrete.
11. A method of applying a bucket plate structure according to any one of claims 1 to 10,
Excavating the soil layer to a predetermined width and depth;
Installing a pile on the ground above the excavated area of the soil layer;
Connecting the pile to the bucket plate and installing the bucket plate; And
Filling the fillet material around the bucket plate,
The step of installing the bucket plate may include installing the bucket plate so that the swash plate is seated on the excavated area of the soil layer,
Wherein filling the filler material comprises filling the filler material above the excavated area of the soil material so that the bucket plate is buried in the ground.
13. The method of claim 12,
The pile including an anti-activity pile;
Further comprising grouting the foundation of the bucket plate by injecting a ground improvement and performance improving material into the activity preventing pile.
14. The method of claim 13,
Further comprising the step of sucking the soil improvement and performance improving material injected into the activity preventing pile to recover the soil improvement and performance improving material from the activity preventing pile.
13. The method of claim 12,
The pile comprising a standing file;
Wherein the step of installing the pile on the ground comprises the step of providing the foundation pile on the support layer.
13. The method of claim 12,
Further comprising the step of installing a structure foundation supporting the upper structure on the upper portion of the bucket plate.
17. The method of claim 16, wherein the step of installing the foundation comprises:
Providing a plurality of studs protruding from the upper side of the transverse plate;
Disposing the reinforcing bars; And
And placing the concrete with the studs and reinforcing bars embedded therein.
18. The method of claim 17,
Wherein the reinforcing bars embedded in the concrete include reinforcing bars of an upper structure installed on the foundation of the structure.
17. The method of claim 16,
The pile includes an anti-activity pile,
Preventing pile to the upper portion of the foundation,
Further comprising grouting the foundation of the bucket plate by injecting a ground improvement and performance improving material into the activity preventing pile.

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