KR20120139088A - Foundation structure and the method of cut off wall - Google Patents

Foundation structure and the method of cut off wall Download PDF

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Publication number
KR20120139088A
KR20120139088A KR1020110058655A KR20110058655A KR20120139088A KR 20120139088 A KR20120139088 A KR 20120139088A KR 1020110058655 A KR1020110058655 A KR 1020110058655A KR 20110058655 A KR20110058655 A KR 20110058655A KR 20120139088 A KR20120139088 A KR 20120139088A
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KR
South Korea
Prior art keywords
shape
panel
pile
retaining
file
Prior art date
Application number
KR1020110058655A
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Korean (ko)
Inventor
엄기형
Original Assignee
엄기형
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Filing date
Publication date
Application filed by 엄기형 filed Critical 엄기형
Priority to KR1020110058655A priority Critical patent/KR20120139088A/en
Publication of KR20120139088A publication Critical patent/KR20120139088A/en

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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/02—Foundation pits
    • E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/02—Sheet piles or sheet pile bulkheads
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22—Piles
    • E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
    • E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00—Materials
    • E02D2300/0004—Synthetics
    • E02D2300/0018—Cement used as binder

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)

Abstract

PURPOSE: An earth retaining pile capable of keeping the original shape and a formation method thereof are provided to obtain high strength and reduced thickness and to minimize deformation. CONSTITUTION: An earth retaining pile capable of keeping the original shape comprises reinforcing bars(12,14) or steel skeleton and a shape retaining panel(110) arranged at a predetermined interval from the reinforcing bars or steel skeleton, close to the outside.

Description

Geometry retaining pile file and its formation method {Foundation Structure and the method of cut off wall}

The present invention provides a mud wall to prevent groundwater and earth and sand from occurring in adjacent ground when the underground excavation or excavation work is carried out, and to prevent the ground from falling down. The present invention relates to an earthquake pile and a forming method which enables the shape of the pile to be maintained with almost no deformation, thereby securing the structural strength thereof, so that the thickness of the main wall can be made thinner at the time of forming the main wall.

During the construction of water barriers, underground excavation, and road expansion, a wall of mud walls is installed to prevent water from flowing around the construction section, the ground collapses, or the inflow of soil. If the wall is not able to be ordered, a separate order grouting is to be provided on the back of the retaining wall to have a separate order function.

Among the walls of the wall, excavation wall using casing and pile is excavated by using auger or the like before installation, and after installing the casing, fill the cement milk and gravel before or after inserting steel frame or reinforcing bar such as H beam. Or fill the concrete to form concrete pillars in the ground. In some cases, this process can be performed without installing a casing.

1 is a view showing a conventional formation process of the retaining pile and the cross section of the main wall structure. Referring to Figure 1, as shown in (a) excavation between the outer outer wall (1) of the ground and the inner basement wall (3) to excavate, insert the casing (16), the vertical reinforcement (12) And a horizontal reinforcing bar 14 continuous in the transverse direction of the annular and spring type, and a cement mixture such as concrete 11 is poured to form the pile 10 in a row. An H beam, steel frame, or the like may be disposed in place of the reinforcing bar.

Thereafter, before the curing of the concrete 11 is completed, the casing 16 is removed. As the sidewalls of the drilled hole are collapsed, the concrete 11 is deviated from the uniform shape and is slid laterally and downwardly, as shown in (b). It does not maintain a uniform appearance and has a deformed shape. The same applies to the pile formed along the nonuniform inner excavation surface even when the concrete 11 is directly injected into the nonuniform surface excavated by the auger or hang glove or the like without the casing 16 installed.

In this case, due to the nonuniformity of the pile 10, it cannot be expected that the pile 10 itself has a function as a main wall. That is, there is a problem in that the pile 10 itself cannot be utilized in a configuration that helps the required strength in forming the wall.

Therefore, when the main wall is formed, the strength of the main wall 20 is calculated without considering the strength held by the pile 10 as shown in (c), and the thickness w1 and the required reinforcing bars 24 are installed. The slab 22 is formed.

In this conventional method, since the installation space of the retaining pile 10 and the installation space of the main wall 20 are required respectively, more burrowing space is required in the basement layer, and the main wall 20 should be formed thicker, so that the construction cost And there is a problem that the construction period is increased.

The present invention has been made to solve the above problems, an object of the present invention is to increase the strength of the pile itself and to minimize the deformation of the shape.

In addition, in the installation of the main wall, an object of the present invention is to enable the main wall to be formed relatively simply with a simpler configuration by using the rigidity of the earth wall already firmly installed.

In addition, it is an object of the present invention to make it possible to utilize a firmly established uniform soil pile file when calculating the structural strength, and to reduce the additional structure for additional bone wall strength reinforcement and support.

It is also an object of the present invention to provide a structure in which the mud pile and the main wall are firmly integrated, thereby reinforcing mutual strength and reducing thickness.

The configuration of the present invention for achieving the above object, in the pile provided at the time of construction of the wall wall, reinforcing bars in the pile; Or steel frame; And it provides a shape-maintaining soil pile file comprising a shape-retaining panel in the form of a plate disposed in the file spaced apart from the reinforcement or reinforcing bars.

The shape maintaining panel is characterized in that the curved plate shape.

Between the shape maintaining panel and the reinforcing bars, steel frame is characterized in that the spacing member is provided.

The spacing member is characterized in that formed integrally on one surface of the shape maintaining panel.

The rear surface of the shape maintaining panel is characterized in that the spacer is integrally formed or coupled.

Both ends of the spacer member is characterized in that the shape maintaining panel is provided.

The basement layer side of the pile is provided with a snow-covered panel, characterized in that the belt is coupled to the snow-covered panel side.

The shape maintaining panel is characterized in that formed on the side wall.

The shape maintaining panel is further characterized in that the basement layer side.

The pile is characterized in that the coupling member is provided.

In addition, in the construction method of the soil pile pile, (1) the step of digging the floor vertically and then installing reinforcement or steel frame; (2) disposing a shape maintaining panel disposed adjacent to the empty wall side; And (3) injecting a cement mixture into the excavated space.

In the step (1), characterized in that it further comprises the step of inserting the casing.

When injecting the cement mixture in the step (3), characterized in that for fixing the shape maintaining panel to be spaced apart from the reinforcement or steel frame.

Between the shape maintaining panel and the reinforcing bar or steel frame is provided with a gap member, characterized in that spaced apart from each other to support.

Two or more of the shape holding panel, characterized in that the space between the shape holding panel is provided, the mutually spaced support.

The present invention has the effect of increasing the strength of the pile itself, and minimize the deformation of the shape to serve as a support of the hollow wall.

In addition, the present invention has an effect that the main wall can be formed relatively simply in a simpler configuration by using the rigidity of the retaining pile pile, which is already firmly installed in the installation of the present wall.

In addition, the present invention has the effect of reducing the additional constitution for additional main wall strength reinforcement, supporting, simplifying the construction procedure and reducing the construction cost, and allows the wall to have a better rigidity.

In addition, the present invention allows the soil pile and the main wall to be firmly integrated, and has the effect of reinforcing mutual strength and reducing thickness.

1 is a view showing a conventional formation process of the retaining pile and the cross section of the main wall structure.
Fig. 2 is a diagram showing the internal structure of the clod pile of the present invention.
3 and 4 are views showing a cross section of the retaining pile of the present invention and its installation cross section.
5 is a view showing a cross section of the formation process and the main wall structure of the retaining pile of the present invention.
6 is a view showing a cross section of a conventional soil pile and the soil pile of the present invention.
7 to 9 are cross-sectional views showing embodiments of the retaining pile of the present invention.
It is a figure which shows the Example for integrally forming the piling pile and this wall of this invention.

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

Fig. 2 is a view showing the internal structure of the clod pile of the present invention, and Fig. 3 is a cross section of the clod pile of the present invention. Referring to FIGS. 2 and 3, the shape retaining panel 110 is inserted into the hollow wall 1 together with the existing vertical reinforcing bars 12 and horizontal reinforcing bars 14. Of course, steel frame, such as H beam, or steel frame is additionally placed on the rebar. The shape-retaining panel 110 is a rectangular panel having a semicircle or arc-shaped cross section, and the material thereof may be variously used in which shapes such as plastic, synthetic resin, wire mesh, lath mesh, mesh, and metal plate are not fixed or easily deformed. have. In addition, a little deformation of the shape, such as PE film or vinyl, if it can support the concrete to maintain the surface or plate state, it corresponds to the shape maintaining panel.

The shape-retaining panel 110 may be formed in a cylindrical shape, and may be disposed to surround the whole, and may be disposed not only in the hollow wall 1 side but also in the direction of the base wall 3 side opposite thereto.

The shape maintaining panel 110 is disposed to be spaced apart from the reinforcing bars 12 and 14 or the steel frame at a predetermined interval, and is disposed to be close to the outer direction.

Referring to FIG. 3, as shown in (a), the shape maintaining panel 110 is disposed so as to surround the semicircle only in the direction in which the hollow wall 1 is positioned. Although the shape holding panel 110 appears to be in close contact with the outer surface of the pile 10 in the drawing, the position of the shape holding panel 110 is several mm to several cm inward so as not to be exposed to the outside of the pile 10. It is preferable to be positioned, the position may be determined by the spacer member to be described later.

In addition, as shown in (b), the shape maintaining panel 310 may be provided on the opposite side of the underground wall (3) in addition to the side of the hollow wall (1), the position is also configured to be embedded in the surface or inside the surface.

Fig. 4 is a view showing an installation section of the retaining pile file of the present invention. Referring to FIG. 4, since the shape maintaining panel 110 is blocked at the vacant wall 1 side and maintains the shape of the pile 10, the strength of the shape is maintained. Since the basement layer 3 side in the opposite direction is integrated with the main wall later without the shape maintaining panel 110, the shape maintaining panel is not necessarily required. The shape maintaining panel 110 on the side of the vacant wall 1 is in contact with each other and the shape maintaining panel 110 on the side, it is preferable to be in close contact with each other.

5 is a view showing a cross section of the formation process and the main wall structure of the retaining pile of the present invention. Referring to FIG. 5, after excavating the ground, the casing 16 and the reinforcing bars are placed, the shape maintaining panel 110 is disposed, and then the concrete 11 is introduced.

When the casing 16 is removed afterwards as shown in (b), the concrete 11b in the basement layer 3 direction without the shape holding panel is somewhat deformed and collapses or falls, and the empty wall 1 side is the shape holding panel. The concrete 11a on the outside of 110 is torn down, but since the shape holding panel 110 supports, the overall shape is maintained as it is.

Therefore, when forming the wall 20 as shown in (c), the thickness w2 can be made relatively thinner than the existing one by utilizing the strength of the pile 10 whose shape is maintained. As shown in the drawing, the reinforcing bar 24 will also be conventionally doubled, so that only one layer can be made as shown in the drawing, so that the construction period as well as material costs and construction costs can be shortened.

In this process, the process of inserting and removing the casing 16 may be omitted depending on the conditions and processes of the ground. That is, as the shape maintaining panel 110 is provided in the excavated hole, it will be the same to prevent the collapse or deformation.

On the other hand, when the shape retaining panel is formed over the whole pile or provided not only on the side of the hollow wall but also on the basement floor side, it is, of course, possible to maintain a more reliable shape.

In this process, the shape maintaining panel 110 is to be spaced apart from the reinforcing bars (12, 14), and at the same time in the interval of the surface of the pile 10 in principle. Of course, although the shape maintaining panel 110 is located on the surface of the pile 10 on the drawing, but is not necessarily limited thereto.

6 is a view showing a cross section of a conventional soil pile and the soil pile of the present invention. Referring to FIG. 6, in the conventional pile, as shown in (a), the reinforcing bars 14 should be arranged at a diameter of D1, and the interval between the outer surface of the pile 10 and R1 should be kept long, for example, with the outer surface. There is a provision to keep the separation distance more than 8cm.

As the pile of the present invention becomes firm as the outer side as shown in (b), the shape deformation of the outer side can be reduced, so that the distance between the reinforcing bar 14 and the surface can be made small as R2, for example, can be reduced to about 4 cm. Will be. That is, it is because there is no problem in strength, a structure, etc., even if it considers only the minimum deformation width or at least. Accordingly, the diameter D2 of the reinforcing bar 14 can be made larger, thereby increasing the strength of the pile 10 itself.

7 to 9 are cross-sectional views showing embodiments of the retaining pile of the present invention. Referring to FIG. 7, the shape maintaining panel should be spaced apart from the reinforcing bars and steel frames and is not exposed to the outer surface. As shown in (a), it is possible to just arrange the shape maintaining panel 110 and to separate it from the reinforcing bars 14 by pouring the concrete and pushing it. It is also possible to temporarily push) outward.

As shown in (b), it is preferable to space the space between the reinforcing bars 14 and the shape maintaining panel 110 by the spacer member 210. The spacing member 210 is not limited in shape or material such as wire, rod, clip, rod, etc., and supports the inner surface of the shape-retaining panel 110 as a separate configuration and is supported by the reinforcing bars 14 or maintains the shape. It may be possible to be integrally formed on the inner surface of the panel 110.

As shown in (c), the spacing member 220 may use a styrofoam or other materials having a bulky feeling.

In addition, as shown in (d), the spacer member 112 is formed to be long in the shape maintaining panel 110, so as not to be supported by the reinforcing bar 14, it is possible to be arranged in the pile 10, (e) As described above, it may be possible to connect two or more shape maintaining panels 110 and 310.

On the other hand, these embodiments may be equally applicable to rectangular holes excavated with a hang glove as shown in (f).

Referring to FIG. 8, the shape maintaining panels 120 and 130 may have a divided surface, and a plurality of the shape maintaining panels 120 and 130 may be arranged, and spacer members 122 and 132 may be formed, supported, or coupled to the rear surface thereof.

Referring to FIG. 9, the snow layer panel 320 may be provided on the basement layer side of the pile 10. As shown in (a) and (b) and provided with a snow-covered panel 320, when the concrete is cured outside of the concrete, it is used to couple the horizontal stripe on the basis of the flat portion.

In addition, it is also possible to form the inner panel 330 made of metal, so as to be exposed to the outer surface (c). The exposed snow-covered panel 330 may be coupled to the steel strip (H) for welding, etc., to allow various brackets, anchors, thrusts, wedges, etc. to be installed to install the strip.

It is a figure which shows the Example for integrally forming the piling pile and this wall of this invention. Referring to FIG. 10, as a configuration for integrating the retaining pile 10 and the main wall 20, the coupling 10 includes coupling members 410, 420, 430, 440, 450, and 460. The members 410, 420, 430, 440, 450, and 460 are coupled to one another, or the engaging portions 412, 452, and 462 at their ends extend into the main wall 20 to be integrated.

The coupling member 410 has a horizontal portion and a coupling portion 412 that is bent at an end thereof, and the inner tongue member 414 is located on its rear surface. The coupling part 412 exposed to the outside of the pile 10 is horizontally connected to the reinforcing bars in the wall 20, and the snow member 414 is used to secure a space when the pile 10 is formed. After the coupling part 412 is horizontally connected, it may be used to secure the formwork 500 with the fastening member 520 by connecting with the connection member 510 as shown in (b).

In addition, the coupling member 420 may be provided with a nut-shaped sleeve to the outside of the pile 10 to allow the coupling member 510 or other reinforcing bar components to be in-bonded, and the coupling member 430 is supported by the rebar 12. It can also be welded together. In addition, the coupling member 420 may be disposed only on the surface without being exposed to the outside of the pile (10). In addition, the coupling member 450 may be provided over the inner and outer sides of the shape maintaining member 110 in the c-shape, it is also applicable to the a-shaped coupling member 460. These coupling members are connected to a reinforcing bar or other connecting member 510 or the like in the wall 20, such that the pile 10 and the main wall 20 are formed to be more integrally and closely contacted.

According to the configuration of the present invention as described above, the main wall is organically interconnected and supported by the retaining pile and the main wall by using a file that maintains the shape, there is an effect that can obtain a higher rigidity and support. In addition, according to the integration, as well as ensuring the overall sufficient strength and support, there is an effect that the overall thickness is reduced. In addition, the inner shape retaining member has an effect of increasing its strength to enable the support of the hollow walls.

1: empty wall 3: underground wall
10: file 11: concrete
12: vertical reinforcement 14: horizontal reinforcement
16 casing 110 shape retaining panel
112: spacing member 120: shape holding panel
122: spacing member 130: shape holding panel
132: spacing member 210: spacing member
220: spacing member 230: spacing member
310: shape maintaining panel 320: snow panel
330: inner panel 410: coupling member
412: coupling portion 414: internal member
420, 430, 440: coupling member 450: coupling member
452: coupling portion 460: coupling member
462: coupling part 500: formwork
510: connecting member 520: fastening member

Claims (15)

In the pile provided at the time of construction of the wall,
Reinforcing bars in piles; And
Shape retaining soil pile file, characterized in that it comprises a plate-shaped shape maintaining panel disposed in the file spaced apart from the reinforcement.
The method of claim 1,
The shape maintaining panel is:
A shape-retaining retaining pile characterized in that it is curved plate shape.
The method of claim 1,
A shape-maintaining pile file, characterized in that a gap member is provided between the shape-retaining panel and the reinforcing bar.
The method of claim 3, wherein
The spacer member is:
Shape retaining soil pile file, characterized in that integrally formed on one surface of the shape maintaining panel.
The method of claim 1,
The rear surface of the shape-retaining panel is a shape retaining soil pile file, characterized in that the spacer is integrally formed or coupled.
The method of claim 5, wherein
Shape-maintaining soil pile file, characterized in that the shape maintaining panel is provided at both ends of the spacing member.
The method of claim 1,
The basement side of the pile is provided with a snow-resistant panel,
The shape-maintaining soil pile file, characterized in that the strip is coupled to the inner panel side.
The method of claim 1,
The shape-retaining soil pile file, wherein the shape-retaining panel is formed on the side of the hollow wall.
The method of claim 8,
The shape-retaining soil pile file, wherein the shape-retaining panel is further formed on the basement side.
The method of claim 1,
Shaped retaining pile file, characterized in that the file is provided with a coupling member.
In the method of constructing a pile file,
(1) a step in which rebar is inserted and installed after digging or drilling the floor vertically;
(2) disposing the shape holding panel which is disposed adjacent to the empty wall side simultaneously with or after the step (1); And
(3) injecting a cement mixture into the excavated space; shape retaining soil pile forming method comprising a.
The method of claim 11,
In the step (1),
Shape retaining soil pile file forming method further comprising the step of inserting the casing.
The method of claim 11,
When injecting the cement mixture in the step (3),
The shape-maintaining soil pile file forming method of fixing the shape maintaining panel to be spaced apart from the reinforcing bar.
The method of claim 11,
The shape maintaining panel;
Spacing members are provided between the rebars,
A method of forming a shape retaining pile, characterized in that supporting each other apart.
The method of claim 11,
It is provided with two or more said shape maintaining panels,
Between the shape maintaining panel is provided with a gap member,
A method of forming a shape retaining pile, characterized in that supporting each other apart.
KR1020110058655A 2011-06-16 2011-06-16 Foundation structure and the method of cut off wall KR20120139088A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110058655A KR20120139088A (en) 2011-06-16 2011-06-16 Foundation structure and the method of cut off wall

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110058655A KR20120139088A (en) 2011-06-16 2011-06-16 Foundation structure and the method of cut off wall

Publications (1)

Publication Number Publication Date
KR20120139088A true KR20120139088A (en) 2012-12-27

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KR1020110058655A KR20120139088A (en) 2011-06-16 2011-06-16 Foundation structure and the method of cut off wall

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115162348A (en) * 2022-06-27 2022-10-11 广西华蓝岩土工程有限公司 Bored pile, waist beam with bored pile and manufacturing method of waist beam

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115162348A (en) * 2022-06-27 2022-10-11 广西华蓝岩土工程有限公司 Bored pile, waist beam with bored pile and manufacturing method of waist beam

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