KR101643692B1

KR101643692B1 - Retaining structures for building construction

Info

Publication number: KR101643692B1
Application number: KR1020150093290A
Authority: KR
Inventors: 문창용
Original assignee: (주) 영탑엔지니어링건축사사무소
Priority date: 2015-06-30
Filing date: 2015-06-30
Publication date: 2016-07-28

Abstract

The present invention provides an earth retaining structure for building construction, which comprises: a plurality of support piles constructed in a longitudinal direction into an excavated ground; a plurality of wales installed at regular intervals in a traverse direction on back surfaces of the support piles; wall panels inserted into the ground between the support piles to play a role of retaining earth during the building construction; and reinforcing supports connectedly arranged on one side surfaces of the wales to reinforce the wales installed within the excavated ground. The present invention stably supports rear surfaces of the wales even without using struts to effectively prevent ground failure due to earth pressure, and also ensuring a wide building excavation space to make it convenient to construct the building.

Description

{RETAINING STRUCTURES FOR BUILDING CONSTRUCTION}

[0001] The present invention relates to a building structure for building construction, and more particularly to a construction structure for building construction, which comprises a plurality of support files installed longitudinally on an excavation site, a plurality of wales installed vertically and horizontally at predetermined intervals on the back of the support files, And a reinforcing support member connected to one side of the wales so as to reinforce a wall inserted into the ground between the support files and serving as a retaining member during construction and wales installed inside the excavation site, It is possible to effectively prevent the ground from collapsing due to the earth pressure and also to secure a wide excavation space of the building, thereby providing an improved effect for convenient construction of the building, And a retaining structure for building construction.

Generally, in order to construct underground structures in civil engineering works or construction works, the underground space is used by excavating the ground. In order to prevent the earth from collapsing due to the earth pressure generated during the construction work, a temporary earth retaining structure Construction.

The temporary earth retaining structure is constructed by various methods according to the size of the earth pressure acting on the excavation surface, the site conditions, the type of the construction to be constructed, the construction method, and the like. As the construction method of the temporary earth retaining structure, RSW method, RPRW method, PSS method, SGP method, two column H-file retention method, CSR method and e-PHC method.

However, in the related art, there is a problem that it is possible to effectively prevent the ground from collapsing due to the earth pressure by stably supporting the back surface of the belt without using a strut, or to secure a wide excavation space of the building.

Korean Patent No. 10-0657655

SUMMARY OF THE INVENTION The present invention has been made in an effort to solve the problems of the prior art, and it is an object of the present invention to provide an apparatus and a method for supporting a plurality of support files installed longitudinally on excavation ground, a plurality of wales installed horizontally at regular intervals, And a reinforcing support member connected to one side of the wales so as to reinforce a wall inserted into the ground and serving as a retaining member during construction and wales installed inside the excavation site, It is possible to effectively prevent the ground from being collapsed due to the earth pressure by supporting the rear surface stably and also to secure a wide excavation space of the structure and to obtain the improved effect for convenient construction of the building, .

According to an aspect of the present invention, there is provided an earth retaining structure for building construction, comprising: a plurality of support files longitudinally installed on excavation ground; A plurality of wales disposed laterally at regular intervals on the back side of the support files; A wall inserted between the support files and serving as an earth retaining structure during construction work; And a reinforcing support which is connected to one side of the wales so as to reinforce the wales installed in the excavation ground, wherein the reinforcing support includes a horizontal part fixed to the back surface of the wales in parallel, And the inclined portions extend obliquely from the horizontal portion to both side ends of the curved portion so that the interval between the curled portions gradually increases.

The present invention can stably support the back surface of the belt strip without using a strut, effectively preventing the ground from collapsing due to the earth pressure, and securing a wide excavation space for the structure, There is a technical effect.

FIG. 1 schematically shows the configuration of a retaining structure, a retaining structure sensing part and an administrator terminal according to the present invention.
2 is an external perspective view of an earth retaining structure according to an embodiment of the present invention.
3 is an external perspective view of a wall structure of a retaining structure according to an embodiment of the present invention.
4A is a perspective view illustrating a wale-like structure of a retaining structure according to an embodiment of the present invention.
4B is an enlarged cross-sectional view of the end portion of the wrist structure shown in Fig. 4A.
FIG. 5A is a perspective view of an outer appearance of a supporting file in the structure of a retaining structure according to a first embodiment of the present invention. FIG.
FIG. 5B is a sectional view of a supporting file in the structure of a retaining structure according to a second embodiment of the present invention.
FIG. 5C is an exploded perspective view of a cover of a burial box of a PHC file to which a high-strength PC member PHC file is attached according to an embodiment of the present invention. FIG.
6 is an external perspective view of an arch-shaped wall structure of a retaining structure according to an embodiment of the present invention.
7 is a partial sectional view showing a steel pipe pile for an earth retaining structure according to an embodiment of the present invention.

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

FIG. 1 schematically shows the configuration of a retaining structure, a retaining structure sensing part and an administrator terminal according to the present invention.

Referring to FIG. 1, the present invention includes a retaining structure 100, a retaining structure sensing unit 200, and an administrator terminal 300.

The retaining structure (100) can stably support the rear surface of the belt strip without using a strut during construction, thereby effectively preventing the ground from collapsing due to the earth pressure, and securing a wide excavation space of the structure, Which will be described in detail later with reference to FIG. 2 to FIG. 6.

The cladding structure sensing unit 200 is for sensing the installation and storage state of the cladding structure 100 and is for transmitting sensed image data on the basis of AVB (Audio Video Bridge). For example, the cladding structure sensing unit 200 may be a CCTV , An infrared camera, or the like may be installed at a predetermined distance from the retaining structure 100 in a plurality of places on each side.

In this case, the camera supports IEEE1394 or Gigabit Ethernet high-speed data transfer interface to transmit the shot image to the image storage device, and the image storage device software stores the image according to the storage format of the image by the setting.

In this case, each disk may be implemented as a storage medium, such as a hard disk drive (HDD), an optical disk drive (ODD), or a solid state disk (SSD).

Meanwhile, the block-based parallel direct storage method used in the present invention can selectively control each disk by using unique MAC address information of the board, It is possible to speed up the storage speed by sequentially storing the data on the respective disks.

In the case of the file unit storage method, unnecessary header information of a packet and a continuous input / output (I / O) signal are generated, a transmission amount and a frame are reduced while a file system transmits a packet, By storing in a sequential manner rather than in a sequential manner, the storage speed is slow compared to the slow.

The manager terminal 300 receives an abnormal signal when it is determined that the state of the retention structure is abnormal as a result of analyzing the image sensed by the retention structure sensing unit 200. For example, Can be used.

2 is an external perspective view of an earth retaining structure according to an embodiment of the present invention.

2, the retaining structure 100 according to the present invention includes a support pile 110, a wale 120, a wall 130, a reinforcement beam 140, and a strut member 142.

The earth retaining structure 100 according to the present invention has a plurality of support piles 110 that are installed in the ground in the longitudinal direction. The support piles 110 are in the form of a conventional H-beam, and have wales 120 disposed on the back surface of the support piles 110 at predetermined intervals in the vertical direction.

These wales 20 are also in the form of a conventional H-beam, and the support pile 110 and the wale 120 constitute a support. The wall 130 may be formed of a conventional plate or the like between the support files 110. The wall 130 may be formed of a conventional plate or the like.

In this structure, first, the support file 110, which is a normal H file, is hammered to the ground at a predetermined distance, and then the ground 130 is slid between the support files 110, And then installing the wales 120 in the lateral direction so as to connect the supporting file 110 and the supporting file 110 after the predetermined depth is reached.

In this structure, although the excavation site supports are shown using a conventional support pile 110, the present invention can be provided with concrete piles, steel pipe piles, underground wall piles, and the like.

And a reinforcing beam 140 disposed on the back surface of the wale band 120 and having an arcuate structure and connected to the wale band 120 through a plurality of strut members 142.

Each of the reinforcing beams 140 is connected to the earth retaining structure 100 at the back surface of the earth retaining structure 100 so that the earth pressure of the excavating ground is transmitted to both excavation grounds through both ends of the reinforcing beams. Shaped structure in which the interval d is gradually increased from the center of the reinforcing beam 140 toward both side ends thereof.

That is, the reinforcing beam 140 is also formed in a conventional H-beam shape. However, the present invention is not limited thereto, and it is needless to say that a steel material having a steel pipe or other cross-sectional structure can be used.

The reinforcing beam 140 is curved in an arc-shaped structure as a whole. The reinforcing beam 140 has a shape in which the interval d between the wales 120 is gradually reduced from the both sides toward the center, Structure. When the earth pressure is received from the outside of the wale band 120 through the arc-shaped structure, a reinforcing structure that effectively resists the earth pressure is formed.

Each of the strut members 142 is a straight iron member and connects the back surface of the wale band 120 and the front surface of the reinforcing beam 140 in a straight line. In this connection structure, when the earth pressure is applied to the wale band 120, it is effectively transmitted to the side of the reinforcing beam 140 through the strut members 142, and is transmitted through the arc-shaped structure of the reinforcing beam 140 140 support the earth pressure by causing the earth pressure of the installed excavation ground to be transmitted to the excavation grounds on both sides through both ends of each of the reinforcing beams 140.

3 is an external perspective view of a wall structure of a retaining structure according to an embodiment of the present invention.

3, the wall 130 according to the present invention includes an arched panel member 11 which is arcuately curved and a pair of side wall portions 11a and 11b which are fixed to both sides of the arcuate panel member 11, And a flat panel member (12) covering the surface, thereby stably supporting the rear earth pressure by the arching effect, thereby increasing the stability and increasing the self-standing depth.

The arcuate panel member 11 is manufactured by bending a metal plate to warp into an arch shape. The both side ends of the arcuate panel member 11 are welded and fixed to one surface of the flat panel member 12 as an example.

The flat panel member 12 has a width larger than the width of the arcuate panel member 11 and has a panel supporting portion 10b protruding to both side ends of the arcuate panel member 11. [

The flat panel member 12 covers the curved inner surface of the arcuate panel member 11 while both side ends of the arcuate panel member 11 are fixed in a raised form to form an arcuate wall penetrating in the upward and downward directions do. Here, the upper and lower directions of the arcuate wall refer to the upper and lower portions in the direction in which the arcuate wall body 10 is put on the ground.

The panel support portion 10b may be formed on both sides of the flat panel member 12 or may be formed by bending both side ends of the arcuate panel member 11. [

The flat panel member 12 has a width wider than the width of the arcuate panel member 11 and both ends of the arcuate panel member 11 are fixed to both ends of the flat panel member 12, Is welded and fixed to the flat panel member 12 so as to be formed.

Preferably, the flat panel member 12 has tapered portions 12a formed at both lower edge portions of the flat panel member 12 so that the flat panel member 12 can be more smoothly fitted to the ground.

It is preferable that the grip reinforcing member 13 is located in the center of the arcuate panel member 11 at the upper end of the arcuate panel member 11 and the vibro hammer of the anti- To reinforce the catch.

The grip reinforcing member 13 may be fixed to either the outer side surface or the inner side surface of the arcuate panel member 11 or may be fixed to either the outer side surface or the inner side surface of the arcuate panel member 11 Or may be integrally formed.

The grip reinforcing member 13 increases the thickness of the portion of the vibro hammer held by the vibro hammer so as to prevent deformation of the vibro hammer when the swinging bracket is vertically inserted into the ground.

The grip reinforcing member 13 has a deformation preventing protrusion 13a which is erected in the longitudinal direction of the arcuate panel member 11. [ The deformation preventing protrusion 13a is formed by bending both sides of the grip reinforcing member 13 and is vertically aligned with the longitudinal direction of the arcuate panel member 11 to form the arcuate panel member 11 And the torsional deformation of the torsion spring.

In addition, a locking hole 10a is formed in the upper portion of the arcuate panel member 11 so as to be connected to a crane. In the portion where the locking hole 10a is formed, on the inner surface of the arcuate panel member 11, It is preferable that the hole reinforcing panel 14 having the communication hole communicating with the hole 10a is mounted.

The arcuate panel member 11 and the flat panel member 12 are horizontally mounted on the upper portion of the arcuate wall member 10 to define the rigidity of the arcuate panel member 11 and the flat panel member 12 It is preferable that a transverse stiffening plate member 15 is provided.

The transverse stiffening plate member 15 is fixed to the inner surface of the arcuate panel member 11 and the inner surface of the flat panel member 12 facing the arcuate panel member 11, Increase.

It is preferable that the lateral reinforcement plate member 15 is provided with a main insertion auxiliary hole 16 through which the reinforcement insertion wall for reinforcing the rigidity of the arch wall is passed.

FIG. 4A is a perspective view showing a wale-like structure of a structure of a retaining structure according to an embodiment of the present invention, and FIG. 4B is an enlarged cross-sectional view of an end portion of the wale structure shown in FIG.

3, the wale band structure for a retaining structure according to the present invention includes a wale band 120 protruding at a predetermined interval from a wale band 120 installed inside the earth retaining wall body 130, After the steel wire 50 is installed on the outer side of the eccentric grooves 31 to 37 and the steel wire 50 is applied with a tensile force, the wale band 20 supports the earth pressure of the ground due to the excavation .

In this case, the earthwork is installed on the inner wall of the excavated area after excavating the ground to have a rectangular planar structure, and a wale 120 is installed inside the earth retaining wall 130.

The torsion bars 120 are provided with torsion beams 31 to 37 protruding at regular intervals and the torsion beams 31 to 37 are passed through the upper ends of the torsion beams 31 to 37 to increase the tension on the torsion bars 50 So that the wale band 120 supports the earth pressure of the ground.

The length of the convex portions 31 to 37 gradually decreases from the center of the wale band 20 to both ends of the wale band 20 so that the steel wire 50 provided in the wale band 120 becomes a parabola.

The eccentric beams 31 to 37 have the largest height at the point where the displacement occurs or are predicted in the wale band 120 and the protruded length is adjusted to have a gradually lower height toward the point where the displacement occurs or is not predicted.

The length of the uneven portion protruding from the wale band 120 is adjusted by providing eccentric ribs 31, 32, 33, 34, 35, 36, 37 having different lengths to the wale band 120.

The eccentric beams 31, 32, 33, 34, 35, 36, 37 adjust the length protruded from the wale band 120 to offset the compressive force acting on the wale band 120 when a tensile force is applied to the steel wire 50 In this case, the eccentric beams 31, 32, 33, 34, 35, 36, 37 may be welded to the wristband 20 or fixed using bolts.

The wale band 120 and the eccentric beams 31 to 37 are manufactured using a steel material such as an H-beam, an angle (L-shaped steel), a square pipe (angular pipe), or other members capable of receiving a compressive load.

Of the eccentric beams 31, 32, 33, 34, 35, 36, 37 is provided with an end eccentricity 31 provided at the end of the wristband 120, A reinforcing member 40 is provided to prevent the reinforcing member 40 from being deformed.

The steel wire 50 installed in the wale band 20 has different angles formed by the steel wire 50 due to the eccentric beams 31, 32, 33, 34, 35, 36 and 37 having different lengths, The angle formed by the steel wire 50 is the largest.

Therefore, as shown in FIG. 4, the resultant force of the tensile force T at the time of the tension of the steel wire 50 tends to rotate the end piece symmetry 31 in the clockwise direction.

4, the rotational force P for rotating the end armature 31 in the clockwise direction is restrained by welding or bolt connection of the end armature 31 and the wale 120. However, when the tensile force of the steel wire 50 is increased, the rotational force P is also increased. As a result, the end eccentric beam 31 is rotated and transmitted and the bending resistance of the wristband 20 is canceled. When the bending resistance of the wale band 120 is canceled, the wale band 120 loses its role as the wale band 120.

Here, the limit means a case where the rotational force P generated by the tension force T of the steel wire 50 is greater than the force constrained by the welding or bolt connection of the end piece symmetry 31 and the wale 120.

In order to solve the above-mentioned problem, as shown in Figs. 3 and 4, the side stiffeners 31 and 37 are provided with the four-side stiffener 40. Fig. The four-sided reinforcing member 40 is fixed to the side surface of the end piece symmetry 31 to prevent the end piece symmetry 31 and 37 from being bent due to the tensile force of the steel wire 50.

The four side reinforcement members 40 are slantingly provided on side surfaces of the end piece symmetry plates 31 and 37 corresponding to the longitudinal direction of the wale band 20.

Specifically, the four-side reinforcement 40 has an angle? Formed by the steel wire 50 extending from the end piece symmetry lines 31 and 37 to the fixing means 60 and the angle? The center line 31 is inclined with respect to the end symmetry 31 such that the steel wire 50 extending to the adjacent symmetries 32 and 36 has an intermediate value?

4, the angle? Formed by the steel wire 50 extending from the end piece armature 31 to the fixing means 60 with the wristband 120 is smaller than the angle? (Clockwise in FIG. 4) extending from the end piece symmetry 31 to the fixing means 60 is larger than the angle? Between the steel wire 50 extending to the fixing belt 60 P) occurs.

In order to further constrain the rotational force P, the four-leg stiffener 40 has an inclination corresponding to the intermediate value gamma of the two angles alpha and beta, and extends from the end point symmetry 31 to the adjacent point symmetry 32 And is disposed on one side of the end piece symmetry 31 so as to be positioned in a direction in which the steel wire 50 is positioned.

For example, the four-sided stiffener 40 may be inclined at one side of the end piece symmetry 31 so as to have an angle of 30 to 60 degrees with the end piece symmetry 31, May be inclined on one side of the end piece symmetry 31 so as to have an angle of 45 와 with the end piece symmetry 31.

The four-side reinforcement 40 can be manufactured using a steel material such as an H-beam, an angle (L-shaped steel), a square pipe (angular pipe), or other members capable of receiving a compressive load.

The four-side reinforcement 40 may be fixed at one end to the end armature 31 and welded to the wale 120 by welding or bolt.

The four side reinforcement members 40 may be provided on only one side of the end piece symmetry 31 corresponding to the longitudinal direction of the wale band 120 or on both sides thereof.

FIG. 5A is a perspective view of an outer appearance of a supporting file in the structure of a retaining structure according to a first embodiment of the present invention. FIG.

5A, a support file 110 according to the present invention includes an inflow hole 111, a coupling protrusion 112, a coupling groove 113, an inclined portion 114, and a recessed portion 115.

In other words, the retaining support pile according to the present invention is characterized in that a plurality of inflow holes (20) are formed in the longitudinal direction inside the support pile (110) in forming the pile and earth retaining pile used for the paving work for the underground structure, The nozzle hole is formed at the lower end of each inflow hole 20 and is formed so as to penetrate the lower end of the support pile 110 and has coupling projections 112 and engagement grooves 113 Is formed in the longitudinal direction and the lower end portion of the support pile 110 is composed of the inclined portion 114.

First, the body of the support pile 110 is composed of a concrete body having a width of 300 to 400 mm and a length of 6 to 12 m and having a steel wire therein, so that the weight of the ground can be firmly held when the pavement is constructed. And is formed so as to have an inclined portion 114 so that it can be smoothly press-fitted when the support pile 110 is press-fitted into the ground.

The diameter of the inflow hole 111 formed in the support pile 110 is about 50 mm and the size of the support pile 110 and the diameter of the inflow hole 111 May be formed with different numbers, and it is preferable that at least two or more of them are formed.

The nozzle part formed at both sides of the lower end of the inflow hole 111 is formed to have a smallest diameter as it goes to the lower end of the support pile 110 and penetrates the lower end of the support pile 110.

The engaging protrusions 112 and the engaging recesses 113 formed on the left and right sides of the support pawl 110 are respectively formed in a circular shape and in particular the engaging protrusions 112 are formed to be smaller than the engaging recesses 113, The coupling protrusion 112 formed on the pile 110 can be easily fitted into the coupling groove 113, so that continuous construction can be performed in a short time.

A plurality of recessed portions 115 are longitudinally formed in the front and rear portions of the support pile 110 so that groundwater or the like contained in the ground can be removed from the recessed portion 115 when the support pile 110 is press- To the upper part of the ground.

As described above, the piling file of the present invention and the piling method using the piling pile according to the present invention, when the pile is press-fitted into the ground, the ground water contained in the pile and the ground are crushed through a plurality of piercing parts formed on the front part and the rear part of the pile The primary discharge of the waste water primarily prevents collapse and settlement of the ground. After the pile is press-fitted, when the pile and the pile are combined with each other, the groundwater remaining in the gap between the pile- And the mixed water is mixed and solidified, so that it is possible to prevent the collapse and settlement of the ground secondarily so that the construction can be performed safely.

Therefore, it is possible to reduce the construction cost by reducing the construction period by simultaneously performing the order effect and the earth retaining method, and when the pile is inserted into the ground, the up and down movement of the vibrator and the mixing action are mixed, As the rock layer is crushed, it is pressed into the ground, so that the generation of noise is significantly reduced, and additionally, the generation of dust is suppressed by the number of mixed wastes, so that the environmentally friendly effect can be obtained.

FIG. 5B is a sectional view of a supporting file in the structure of a retaining structure according to a second embodiment of the present invention.

5B, the support pawl 110 according to the present invention includes an upper insertion groove 1a, an upper airtight protrusion 3a, a lower insertion groove 1b, and a lower airtight protrusion 3b.

The present invention is characterized in that two insertion grooves (1a) with one side opened are positioned on the same line, and two support fins (110) formed so that the directions of the openings are perpendicular to each other, and insertion grooves (Not shown) formed so as to face opposite directions to each other and a blocking plate (not shown) into which the both ends are inserted in the insertion grooves 1a and 1b.

The support file 110 may have any shape such as a hollow body having a space formed therein, a full body, or the like, which has a structure of a long section having a cross section of 'a', 'ㅁ' or the like.

The insertion groove 1a is formed on the outer side surface of the support pile 110. The insertion groove 1a is also formed in the longitudinal direction and has a side opening.

The directions of the openings of the two insertion grooves 1a are at right angles. Therefore, when the shape of the plane excavating the ground is a quadrangle, the insertion groove 1a of the support pile 110 installed at the vertex portion is directed to both sides of the quadrangle.

One of the insertion grooves 1a and 1b may be formed by horizontally lying on the upper part, and the other may be formed by a component protruding from the lower part. And both of them may be formed to lie on the adjacent sides as formed on the upper part of Fig. 5B.

The connecting member may be formed by symmetrically coupling a pair of the two steel plates bent in the 'a' shape so that the insertion groove 1b is formed in only one side and the other pair as described above.

Thus, according to the present invention, both end portions of the blocking plate are hermetically sealed to the pile or the connecting member, thereby effectively preventing the inflow of soil or water. By using the connecting member, a plurality of blocking plates can be connected side by side. It is possible to protect the injection pipe by inserting the injection pipe into the injection pipe.

FIG. 5C is an exploded perspective view of a cover box of a buried box among PHC files to which a connection box for a high strength PC member PHC file is applied, according to an embodiment of the present invention.

Referring to FIG. 5C, a PHC file 110c according to the present invention is applied to a high-strength PC (Prestressed Concrete) member PHC file.

In this case, the connecting rope box for the high strength PC member PHC pile is configured in the longitudinal direction of the outer periphery of the PHC pile 110c used as the high strength PC member.

The embedding box of the present invention is composed of a coupling plate 10c having a flat side on one side and an arcuate lid 20c coupled to the coupling plate 10c and the connecting rods 30c are coupled .

For coupling with the embedding box of the present invention, a flat surface is formed on the outer periphery of the PHC file 110c in a cut shape in the longitudinal direction, and a buried box is coupled to the flat surface.

The shape of the PHC file 110c is not limited to a specific shape in cross section such as a circular shape and a polygonal shape. Any shape of a file used as a high strength PC member may be used, and a flat surface to which the embedding box is coupled may be formed.

In other words, the PHC file 110c to which the embedding box of the present invention is combined has a PC steel bar 51c in the longitudinal direction, a spiral reinforcing bar outside the PC steel bar 51c, and a common PHC file But a flat surface is formed on one side of the outer side of the PHC pile 110c and the connecting roots 30c are formed at regular intervals on the flat surface. In the same height, one pair or more pairs .

Further, the PHC file 110c may be formed with a pair of order grouting grooves 53c opposed to the outer surface of the PHC file 110c so that injection holes can be formed by neighboring PHC files 110c .

The combination of the embedding box and the PHC file 110c of the present invention is preliminarily assembled at the time of initial factory production. After the PHC file 110c is installed, the PHC file 110c is used to connect the PHC file 110c, The lid 20c of the embedding box coupled to the side surface of the file 110c is removed and the connection root 30c formed by bending the inside of the embedding box is extended horizontally.

At this time, the embedding box may be used by removing only the lid and extending the connecting roots 30c, or both the lid 20c and the engaging plate 10c may be removed.

Thus, the present invention can be applied to a structure in which the embedding box embedded with the connecting roots is formed at the outer surface of the PHC pile at a predetermined interval, thereby forming the connecting roots of necessary portions such as the beam, the slab, It has a very useful effect and it is possible to construct the columns or walls of the basement outer wall and the ground floor as close to the site boundary as possible and at the same time to reduce the thickness of the wall during the construction of the concrete wall and to use the wedge and slab easily. have.

6 is an external perspective view of an arch-shaped wall structure of a retaining structure according to an embodiment of the present invention.

Referring to FIG. 6, in one embodiment of the present invention, the arcuate wall 130 of the retaining structure is arcuately bent and formed into an arch-shaped wall portion 10 inserted into the ground, And a second arcuate wall portion 20 inserted into the first arcuate wall portion 10 and releasably coupled to the lower portion of the first arcuate wall portion 10. The first arcuate wall portion 10 and the second arcuate wall portion 20 Is detachably coupled by the wall engaging portion 30. As shown in Fig.

The first arcuate wall member 10 includes a first arcuate panel member 11-1 bent in an arcuate shape and a second arcuate panel member 11-1 fixed on both side ends of the first arcuate panel member 11-1, -1) covering the curved inner surface of the first flat panel member 12-1.

The second arcuate wall member 20-1 has an arcuately curved second arcuate panel member 21-1 and both ends of the second arcuate panel member 21-1 are fixed, And a second flat panel member 22-1 covering the curved inner surface of the first flat panel member 21-1.

The first arcuate panel member (11-1) and the second arcuate panel member (21-1) are manufactured by bending a metal plate member and bending it into an arch shape. The first arcuate panel member 11-1 and the second arcuate panel member 21-1 are provided at both ends of the first flat panel member 12-1 and the second flat panel member 22-1 As shown in Fig.

The first flat panel member 12-1 and the second flat panel member 22-1 have a width larger than the width of the first arched panel member 11-1 and the second arched panel member 21-1 The first arcuate panel member (11-1) and the second arcuate panel member (21-1) being fixed to the first panel support portion 12a-1 and a second panel support portion 22a-1, respectively.

The first flat panel member 12-1 and the second flat panel member 22-1 are arranged in a standing manner in such a manner that the amounts of the first arched panel member 11-1 and the second arched panel member 21-1 The first arcuate panel member 11-1 and the second arcuate panel member 21-1 cover the curved inner surfaces of the first arcuate panel member 11-1 and the second arcuate panel member 21-1, And the second arcuate wall portion 20 are formed.

Here, the upper and lower directions refer to the upper and lower portions in the direction in which the first arcuate wall portion 10 and the second arcuate wall portion 20 are put on the ground.

The first panel supporting portion 12a-1 and the second panel supporting portion 22a-1 may be formed on both sides of the first flat panel member 12-1 and the second flat panel member 22-1 And both end portions of the first arcuate panel member 11-1 and the second arcuate panel member 21-1 may be bent.

It is preferable that the second flat panel member 22-1 has tapered portions 22b-1 formed at both lower end corner portions so that it can be more smoothly typed on the ground.

The first arcuate wall portion 10 according to the present invention further includes a first grip reinforcing member 13-1 provided on the upper portion of the first arcuate panel member 11-1.

The first prismatic reinforcement member 13-1 is preferably located at the center of the first arched panel member 11-1 at the upper end of the first arcuate panel member 11-1, And reinforces the portion of the hinge that the hammer grips by the vibro of the hinge that inserts the wall portion 10 into the ground.

The first prismatic reinforcement member 13-1 may be fixed to either the outer side surface or the inner side surface of the first arcuate panel member 11-1 and the first arcuate panel member 11-1 Or may be integrally formed on either the outer side surface or the inner side surface.

The first gripping reinforcing member 13-1 increases the thickness of the portion of the vibro hammer held by the vibro hammer so as to prevent deformation of the portion of the vibro hammer held by the vibro hammer when the pillar is inserted into the ground .

The first grip reinforcing member 13-1 has a first deformation preventing protrusion 13a-1 formed in the longitudinal direction of the first arcuate panel member 11-1.

The first deformation preventing protrusion 13a-1 is formed by bending both sides of the first gripping reinforcement member 13-1. The first deformation preventing protrusion 13a-1 is formed by bending both sides of the first gripping reinforcement member 13-1, So as to prevent warping and twisting deformation of the first arched panel member 11-1.

In addition, a first latching hole 14-1 is formed in the upper portion of the first arched panel member 11-1 so as to be connected to a crane, and the first latching hole 14-1 is formed in the portion where the first latching hole 14-1 is formed. It is preferable that a first hole reinforcing panel 14a-1 having a communicating hole communicating with the first engaging hole 14-1 is mounted on the inner surface of the one-arcuate panel member 11-1.

The first arcuate wall portion 10 is connected to a crane by hooking or coupling a hook such as a ring or a shackle to the first hooking hole 14-1 and is lifted up by a crane to lift the upper portion of the hanger It is gripped by a vibro hammer and inserted into the ground.

The upper part of the first arcuate wall part 10 is the upper part when the first arcuate wall part 10 is erected and inserted into the ground and the lower part of the first arcuate wall part 10 is located on the ground Is a lower portion when inserted and is detachably coupled to the second arcuate wall portion (20).

The second arcuate wall portion 20 according to the present invention further includes a second grip reinforcing member 23-1 provided on the upper portion of the second arcuate panel member 21-1.

The second prismatic reinforcement member 23-1 is preferably located at the center of the second arcuate panel member 21-1 at the upper end of the second arcuate panel member 21-1, And the portion of the hinge that the wall portion 20-1 is inserted into the ground is reinforced by the vibrator of the hinge.

The second fulcra reinforcing member 23-1 may be fixed to either the outer side surface or the inner side surface of the second arcuate panel member 21-1 and the second arcuate panel member 21-1 Or may be integrally formed on either the outer side surface or the inner side surface.

The second grip reinforcing member 23-1 increases the thickness of the portion of the vibro hammer held by the vibro hammer so as to prevent deformation of the portion of the vibro hammer held by the vibro hammer when the pillar is inserted into the ground .

The second grip reinforcing member 23-1 has a second deformation preventing protrusion 23a-1 that is erected in the longitudinal direction of the second arcuate panel member 21-1. The second deformation preventing projection 23a-1 is formed by bending both sides of the second gripping reinforcement 23-1. The second deformation preventing projection 23a-1 is formed by bending both sides of the second gripping reinforcement 23-1, So as to prevent warping and twisting deformation of the second arcuate panel member 21-1.

In addition, the second arcuate panel member 21-1 has a second latching hole 24-1 formed at an upper portion thereof to be connected to the crane, and the second latching hole 24-1 is formed at the portion where the second latching hole 24-1 is formed. And a second hole reinforcing panel 24a-1 having a communication hole communicating with the second retaining hole 24-1 is mounted on the inner surface of the second arcuate panel member 21-1.

The second arcuate wall portion 20 is connected to the second hooking hole 24-1 by a hook such as a ring or a shackle or the like and is connected to the crane and is lifted up by the crane, It is gripped by a vibro hammer and inserted into the ground.

The upper part of the second arcuate wall part 20 is the upper part when the second arcuate wall part 20 is erected and inserted into the ground, and the lower part of the second arcuate wall part 20 is located above the arched wall part 20, Is a lower portion when inserted and is detachably coupled to the second arcuate wall portion (20).

The second arcuate wall portion 20 is attached to the lower portion of the second arcuate panel member 21-1 and is provided with a lower reinforcement member 25- 1).

The lower reinforcement member 25-1 reinforces the lower rigidity of the second arcuate panel member 21-1 to prevent deformation of the arcuate panel member when it is inserted into the ground, .

The lower reinforcing member 25-1 may be a plurality of reinforcing plates. For example, a plurality of the reinforcing plates may be welded to the front surface or the rear surface of the second arcuate panel member 21-1.

The lower reinforcing member 25-1 may be a protruding strip (not shown) mounted on the inner surface of the lower end of the second arcuate panel member 21-1. The protruding strips include reinforcing bars mounted around the inner surface of the second arcuate panel member 21-1.

The protruding strip prevents the ground from directly contacting the inner surface of the second arcuate panel member (21-1) when the second arcuate wall part (20) is inserted into the ground, so that the second arcuate wall part As shown in FIG.

The wall coupling portion 30 is mounted on the front and rear surfaces of either the lower portion of the first arcuate wall portion 10 and the upper portion of the second arcuate wall portion 20, And an engaging fixture 32-1 for fixing the engaging state through the insertion guide panels 31a-1 and 31b-1 and the insertion guide panels 31a-1 and 31b-1.

The insertion guide panels 31a-1 and 31b-1 are mounted on the front and rear surfaces of the lower portion of the first arched panel member 11-1 or the upper portion of the second arched panel member 21-1, 1 guide panel 31a-1 and a second guide panel 31b mounted on the front and rear surfaces of the lower portion of the first flat panel member 12-1 or the upper portion of the second flat panel member 22-1, -1).

Accordingly, the present invention can stably support the rear soil pressure by arching effect by using an arched wall having a large rigidity, thereby increasing the stability and increasing the depth of self-standing, and can be easily adjusted to various lengths according to the construction design. It has the effect that convenience is improved, the number of required members is small, and the construction process is simplified by being easily inserted into the ground, so that the construction period is shortened and the construction can be performed quickly, and the construction cost is reduced. It is possible to pour concrete without installing a separate formwork, so that the construction cost is reduced and the construction period is shortened.

7 is a partial sectional view showing a steel pipe pile for an earth retaining structure according to an embodiment of the present invention.

7, the steel pipe pile for a retaining structure includes a columnar steel pipe 4, a rib 5 fixed to the outer side of the leading end, And an expansion plate (6) extending from the expansion plate (6).

In other words, the steel pipe 4 is configured to support the load on the upper side and is formed into a hollow cylindrical shape having a predetermined diameter L1.

A general steel pipe pile is composed of a steel pipe having a finer diameter than the diameter of the drilling hole. However, the earthquake-proof pile is composed of a relatively small-diameter steel pipe having a large difference from the diameter of the drilling hole, Since the gap can be widened and the trestle tube can be inserted, the concrete can be easily poured.

A plurality of ribs 5 are fixed to the outside of the front end of the steel pipe 4 by welding and fixed radially with respect to the steel pipe 4. The bottom surface of the rib 5 coincides with the lower end surface of the steel pipe 4. [

The rib 5 supports the extension plate 5 with respect to the steel pipe 4 and is buried in a concrete layer formed by placing concrete at the lower part of the excavation hole when constructing the buried pile.

The expansion plate 6 is a donut-shaped original plate fixed to the bottom surface of the rib 5 by welding and has an inner diameter coinciding with an inner diameter of the steel pipe 4, an outer diameter L2 being larger than an outer diameter of the steel pipe 4, Is formed smaller than the inner diameter of the excavation hole by a minute difference.

Thus, the expansion plate 6 is firmly fixed to the front end of the steel pipe 4 and has an outer diameter larger than the outer diameter of the steel pipe, thereby enlarging the diameter of the front end of the steel pipe.

Therefore, as compared with the case where the gap formed between the steel pipe 4 and the sidewall of the excavation hole is not provided when the steel pipe pile is inserted into the excavation hole, the gap formed between the steel pipe 4 and the side wall of the excavation hole is narrow The tip end bearing capacity of the steel pipe is increased correspondingly.

The steel pipe pile having the above structure is constituted by the steel pipe 4 having the relatively small diameter L1 by the rib 5 provided at the tip of the steel pipe 4 and the expansion plate 6, It can exhibit rigidity.

As a result, the problem of increase in construction cost due to an increase in the price of raw materials of metal materials can be solved.

That is, the earthquake-resistant pile composed of L406 and L812-diameter steel pipes 4 can exhibit the same or greater stiffness than that exhibited by typical L506 and L1500 diameter PHC piles, respectively.

The present invention uses a steel pipe pile of an earthquake-proof property, the leading end of a steel pipe pile is deeply buried in the ground to secure a stable supporting force, and a separate reinforcing steel bracket is not constructed, so that the structure can be simplified, And the like.

Thus, according to the present invention, the retaining structure for tying the H-shaped steel material according to the prior art into the ground can not secure a stable supporting force and solves the problems of complicating the construction work by complicating the structure of the work space when the reinforcement is further applied .

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit of the invention.

100: retaining structure
110: support file
120: Wale
130: wall
140: Reinforcing beam
142:

Claims

A plurality of support files constructed longitudinally on excavation ground;
A plurality of wales disposed laterally at regular intervals on the back side of the support files;
A wall inserted between the support files and serving as an earth retaining structure during construction work; And
And reinforcing supports connected to one side of the wales to reinforce the wales installed in the excavation ground,
The reinforcing support includes:
A horizontal portion that is fixed on the back surface of the wales and a slope portion that extends to both sides of the horizontal portion, wherein the slope portion has a shape in which the interval between the wales portions is gradually increased from the horizontal portion toward both side ends, As shown in FIG.
The support files,
Wherein a plurality of inflow holes are formed on the inside of the support files in a longitudinal direction and a nozzle unit is formed at a lower end of each inflow hole and is formed to pass through a lower end portion of the support files, The engaging projections and the engaging grooves are formed in the longitudinal direction, the lower ends of the supporting files are formed of the inclined portions,
A plurality of cameras are installed on the four sides of the retaining structure at regular intervals so as to detect installation and storage states of the support files, the wales, the wall, and the reinforcing support, and the image data photographed by the cameras Wherein the image data is transmitted based on AVB (Audio Video Bridge), and the transmitted image data is stored in a block parallel direct storage manner.

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