KR101011169B1 - Precast Concrete Wall and Construction Method using the same - Google Patents

Precast Concrete Wall and Construction Method using the same Download PDF

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Publication number
KR101011169B1
KR101011169B1 KR1020080045968A KR20080045968A KR101011169B1 KR 101011169 B1 KR101011169 B1 KR 101011169B1 KR 1020080045968 A KR1020080045968 A KR 1020080045968A KR 20080045968 A KR20080045968 A KR 20080045968A KR 101011169 B1 KR101011169 B1 KR 101011169B1
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KR
South Korea
Prior art keywords
pile
concrete
ready
hat
construction
Prior art date
Application number
KR1020080045968A
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Korean (ko)
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KR20090120092A (en
Inventor
김원근
김영호
김인종
Original Assignee
김원근
(주) 아이제이컨티넨탈엔지니어링
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Application filed by 김원근, (주) 아이제이컨티넨탈엔지니어링 filed Critical 김원근
Priority to KR1020080045968A priority Critical patent/KR101011169B1/en
Publication of KR20090120092A publication Critical patent/KR20090120092A/en
Application granted granted Critical
Publication of KR101011169B1 publication Critical patent/KR101011169B1/en

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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00Excavations; Bordering of excavations; Making embankments
    • E02D17/02Foundation pits
    • E02D17/04Bordering surfacing or stiffening the sides of foundation pits
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00Excavations; Bordering of excavations; Making embankments
    • E02D17/06Foundation trenches ditches or narrow shafts
    • E02D17/08Bordering or stiffening the sides of ditches trenches or narrow shafts for foundations
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2200/00Geometrical or physical properties
    • E02D2200/16Shapes
    • E02D2200/1685Shapes cylindrical
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2220/00Temporary installations or constructions
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2600/00Miscellaneous
    • E02D2600/20Miscellaneous comprising details of connection between elements

Abstract

The present invention relates to a mud wall and a construction method thereof, and more particularly, to a mud wall using a ready-made concrete pile and its construction method.
According to a preferred embodiment of the present invention, a plurality of ready-made concrete piles are installed in contact with each other in a row along the interface of the earth to be destroyed; A hat beam covering the upper part of the pile and composed of H-beams and having a plurality of grouting holes formed in the abdomen of the H-beams; And a plurality of connection holes are formed in the abdomen of the hat beam, and the connection device is inserted into the connection hole of the hat beam to couple the hat beam to the pile.
Walls, Ready-made Concrete Piles, Cap Beams, Connectors

Description

Precast Concrete Wall and Construction Method using the same}

The present invention relates to a mud wall and a construction method thereof, and more particularly, to a mud wall using a ready-made concrete pile and its construction method.

The earthen block is constructed for the purpose of resisting the side pressure such as earth pressure and water pressure during the digging work, and for the purpose of subsidence of the surrounding ground and the protection of adjacent structures. It is composed of the earthen wall directly contacting the earth and the supporting ball to support it. Differentiate according to the type of material and support. As shown in FIG. 5, the currently used mud walls are H-pile + earth plate, steel sheet pile, column-type mud wall (C.I.P, S.C.W, etc.), underground continuous wall, and the like. In general, H-pile + earth plate is installed where there is no groundwater, and in the case where groundwater exists, the main-walled mud wall and underground continuous wall are used.

The mud wall consisting of H-pile and earth plate is installed along the excavation periphery at the center interval of about 1.8m and connected with earth plate at the same time as excavation. Wood is mainly used as soil plate. The heat-staining wall is drilled into the ground using an earth drill to insert H-beams or reinforcing bars and to cast piles by pouring cast mortar or concrete (CIP), or by adding cement mortar to the soil of the drilled part. It is a method of making a pile (SCW) and using it as an earth wall. Underground continuous wall is a method to excavate the ground of the wall part using stabilizer (bentonite) to prevent the collapse of the excavation surface and the penetration of groundwater and to form the reinforced concrete continuous wall in the ground by placing concrete after inserting the rebar network. In recent years, due to the lighter weight of the auger equipment, the diversification of functions, and the development of high-pressure injection equipment, the use of the main heating wall is increasing as the construction speed is improved and the cost is reduced.

On the other hand, the wall is a horizontal movement in the horizontal direction due to the earth pressure, the earth load and water pressure, or the displacement occurs at the upper end, such as a phenomenon may occur in the stability of underground earthworks workers. Particularly, when the wall is made of CIP or H-peg, the individual piles are not connected to each other, so they are independently resisted to the lateral force, so that horizontal movement, displacement, and full load on the lateral force do not occur. Actions must be taken, and for this purpose, the stakes are placed more than 4 meters above the planned pit and the belts and braces are placed at the top. However, since the upper end of the pile is a free end state, displacement occurs easily due to the lateral force, and as the soil moves, many problems occur such as settlement of surrounding ground, tilting of the building, and cracking.

The present invention is to solve the problems that can occur when the upper end of the pile is a free end state to provide a device that can be easily dismantled after the completion of the digging work while connecting the individual upper end of the pile as a fixed point. There is this.

According to a preferred embodiment of the present invention, a plurality of ready-made concrete piles are installed in contact with each other in a row along the interface of the earth to be destroyed; A hat beam covering the upper part of the pile and composed of H-beams and having a plurality of grouting holes formed in the abdomen of the H-beams; And a plurality of connection holes are formed in the abdomen of the hat beam, and the connection device is inserted into the connection hole of the hat beam to couple the hat beam to the pile.

And the ready-made concrete pile is characterized in that the PPC (PHC) pile.

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In addition, the connecting device is characterized in that it comprises a head plate, a hollow tube coupled to the lower surface of the head plate, and a filler filled in the inside of the hollow tube.

And the filling material is characterized in that the mortar or concrete.

According to another suitable embodiment of the present invention, perforating the ground along the interface of the site to be digd and inserting a ready-made concrete pile into the hole; Capping a hat beam formed of an H-beam on an upper portion of the pile; And firmly coupling them to each other using a connecting device so that the pile and the hat beam can be integrally acted on the side pressure, the connecting device comprising: a head plate, a hollow tube coupled to a lower surface of the head plate, There is provided a construction method of the retaining wall using a ready-made concrete pile, characterized in that it comprises a filler filled in the interior of the hollow tube.

delete

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And the filling material is characterized in that the mortar or concrete.

According to the present invention, it is possible to suppress the displacement of the individual pile upper end by the lateral force to the maximum by connecting the individual upper end of the pile like a fixed point, it is possible to omit the uppermost brace and the band in some cases.

In addition, the use of ready-made concrete piles pre-fabricated in the factory can prevent air delays due to curing, compared to using the wall as a cast-in-place pile.

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

1 is an exploded perspective view showing the wall of the earth according to the invention, Figure 2 is a perspective view showing a hat beam according to the invention, Figure 3 is a cross-sectional view showing a connecting device according to the invention, Figure 4 is according to the present invention A cross-sectional view of an earthen wall.

Referring to the drawings, the retaining wall according to the present invention is composed of a plurality of ready-made concrete pile 10 and the cap beam (Cap Beam, 20) to be covered on the top of the pile (10).

The ready-made concrete pile 10 is installed to be in contact with each other in a row along the interface of the earth to dig. Ready-made concrete piles are contrasting with cast-in-place concrete piles, which are pre-fabricated concrete piles, and have an empty cross section inside. Types usually include RC piles with reinforced concrete, PC piles with prestressed concrete, and PHC piles with higher strength.

In the present invention, ready-made concrete piles may be used RC piles, PC piles or PHC piles, preferably PHC piles. PHC pile is a kind of ready-made concrete pile, which KS F 4306 defines as pretensioned spun high strength concrete pile. The concrete strength is higher than 800kg / ㎠.

The hat beam 20 is covered on the upper portion of the pile 10. Hat beam 20 is composed of H-shaped steel and a number of grouting holes 21 are formed in the abdomen and a plurality of connection holes so as to install a connection device for further solidifying the coupling as described later ( 22) can be formed. At this time, the grouting hole 21 is formed so that the pile 10 and the pile 10 are located on the rear surface of the portion in contact with each other, that is, the portion that grouting for the order. The hat beam 20 is applied to have a size slightly larger than the pile diameter to be able to fit smoothly. Thus, by covering the top of the pile 10 with the hat beam 20, by connecting the upper end of the individual piles as a fixed point can be suppressed to the maximum occurrence of displacement in the individual pile upper end by the lateral force (side pressure) It is therefore possible to omit the uppermost brace and strap. On the other hand, after the underground construction is completed, it can be easily removed, reusable, and waste-free.

The pile 10 and the hat beam 20 is preferably connected to each other integrally with a connecting device. The connecting device 30 is a hollow tube 32 coupled to the head plate 31 and the lower surface of the head plate 31 and the filling material 33 filled in the hollow tube 32, as shown in FIG. It is composed. Head plate 31 is larger than the connecting hole 22 of the hat beam 20 to be caught when inserted and the hollow tube 32 is inserted into the pile 10 through the connecting hole 22 and the connecting hole 22 The shape and the size are determined corresponding to the shape and the size. And filling the filling material 33 composed of mortar or concrete to reinforce its strength so that the hollow tube 32 inserted into the pile 10 through the connection hole 22 is not destroyed by the side pressure.

Method for constructing the earth wall according to the present invention configured as described above is as follows.

First drill the ground using an earth drill and insert the ready-made concrete pile into the hole. At this time, the ready-made concrete piles are installed to be in contact with each other in a row along the interface of the earth to be destroyed so that the verticality can be maintained.

Next, cover the top of the pile with a hat beam. At this time, it is preferable to combine them firmly with each other using a connecting device so that the pile and the hat beam can be integrally acting on the side pressure.

On the other hand, if the pile is simply in contact with the construction, it is easy to create a space between the pile and the pile, so in the case of permeable ground, chemical is injected between the pile and the pile through the grouting hole formed in the hat beam so that soil or groundwater does not leak out. do. Known LW method, SGR method, JSP method can be selectively applied as a method of injection of the liquid solution for preventing soil leakage and leakage.

The present invention has been described above in detail by using an embodiment. The presented embodiments are exemplary and can be made by those skilled in the art to various modifications and modifications to the disclosed embodiments without departing from the spirit of the present invention. The scope of the invention is not limited by these modifications and variations, but only by the claims appended below.

1 is an exploded perspective view showing the wall of the earth according to the invention.

2 is a perspective view showing a hat beam according to the present invention.

3 is a cross-sectional view showing a connection device according to the present invention.

4 is a cross-sectional view of the retaining wall according to the present invention.

5 is a perspective view showing a generally used wall walls.

<Description of the symbols for the main parts of the drawings>

10: ready-made concrete piles

20: hat beam

21: grouting hole

22: connector

30: connecting device

31: headboard

32: hollow tube

33: Filler

Claims (9)

  1. A plurality of ready-made concrete piles installed in contact with each other in a row along the interface of the earth to be dug;
    A hat beam covering the upper part of the pile and composed of H-beams and having a plurality of grouting holes formed in the abdomen of the H-beams; And
    A plurality of connection holes are formed in the abdomen of the hat beam, and the barrier wall using a ready-made concrete pile, characterized in that it comprises a connecting device for inserting into the connection hole of the hat beam to couple the hat beam with the pile.
  2. According to claim 1,
    The ready-made concrete pile wall wall using a ready-made concrete pile, characterized in that the (PHC) pile.
  3. delete
  4. According to claim 1,
    The connecting device,
    Walling wall using a ready-made concrete pile, characterized in that it comprises a head plate, a hollow tube coupled to the lower surface of the head plate, and a filler filled in the interior of the hollow tube.
  5. 5. The method of claim 4,
    The filler wall wall using ready-made concrete piles, characterized in that the mortar or concrete.
  6. Perforating the ground along the interface of the earth to be dug and inserting a ready-made concrete pile into the hole;
    Capping a hat beam formed of an H-beam on an upper portion of the pile; And
    And firmly coupling them to each other using a connecting device so that the pile and the hat beam can be integrally acting on the side pressure,
    The connecting device,
    Construction method of the wall using the ready-made concrete piles, characterized in that it comprises a head plate, a hollow tube coupled to the lower surface of the head plate, and a filler filled in the interior of the hollow tube.
  7. delete
  8. delete
  9. The method according to claim 6,
    The filling material is a mortar or concrete construction method using a ready-made concrete pile, characterized in that the concrete.
KR1020080045968A 2008-05-19 2008-05-19 Precast Concrete Wall and Construction Method using the same KR101011169B1 (en)

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KR1020080045968A KR101011169B1 (en) 2008-05-19 2008-05-19 Precast Concrete Wall and Construction Method using the same

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Application Number Priority Date Filing Date Title
KR1020080045968A KR101011169B1 (en) 2008-05-19 2008-05-19 Precast Concrete Wall and Construction Method using the same

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KR101011169B1 true KR101011169B1 (en) 2011-01-26

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101406786B1 (en) * 2013-08-19 2014-06-17 정해용 Continuous support of bridge and bridge construction method therewith
KR101828403B1 (en) * 2017-04-17 2018-02-12 김경수 Reservoir embankment construction method and reservoir embankment waterproof structure
KR20180040095A (en) * 2016-10-10 2018-04-19 이기환 Construction method for soil retaining wall using cap slab

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101288602B1 (en) * 2010-06-04 2013-07-22 김영호 Underpass using precast concrete pile and method for constructing the same
KR101692542B1 (en) 2015-07-30 2017-01-09 우종열 Manufacturing method of steel tube pile for retaining wall

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60169327U (en) * 1984-04-17 1985-11-09
JPS6110331U (en) * 1984-06-22 1986-01-22
KR20040003580A (en) * 2002-07-03 2004-01-13 한녹희 Retaining wall using phc pile

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60169327U (en) * 1984-04-17 1985-11-09
JPS6110331U (en) * 1984-06-22 1986-01-22
KR20040003580A (en) * 2002-07-03 2004-01-13 한녹희 Retaining wall using phc pile

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101406786B1 (en) * 2013-08-19 2014-06-17 정해용 Continuous support of bridge and bridge construction method therewith
KR20180040095A (en) * 2016-10-10 2018-04-19 이기환 Construction method for soil retaining wall using cap slab
KR101884663B1 (en) * 2016-10-10 2018-08-03 롯데건설 주식회사 Construction method for soil retaining wall using cap slab
KR101828403B1 (en) * 2017-04-17 2018-02-12 김경수 Reservoir embankment construction method and reservoir embankment waterproof structure

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