JP3019950B2 - Drainage double underground wall construction method and concrete formwork used for it - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of constructing a double-walled underground wall for underground skeletal works, which can easily perform the underground wall work and ensures drainage performance, and a concrete formwork used therefor. Things.

[0002]

2. Description of the Related Art When constructing an underground wall, it is necessary to have a structure capable of treating water generated by cracks and dew condensation on the underground wall.

[0003] Therefore, conventionally, after the construction of an underground concrete wall using a plywood inner formwork, the inner formwork is removed, and a concrete block is piled up inside the formwork with a slight gap from the concrete underground wall. Water generated by cracks and dew condensation on the underground wall is flowed through the space between the concrete block and the underground concrete wall for treatment.

[0004]

However, such a conventional underground wall drainage treatment structure involves many steps, such as the removal of a plywood form and the stacking of concrete blocks, which requires time and costs. .

Further, since water is caused to flow in the space between the concrete block and the concrete underground wall, the direction of the flow of water is not determined, and efficient drainage cannot be performed.

SUMMARY OF THE INVENTION In view of the above-mentioned inconveniences, the present invention provides a method for constructing an underground side wall in an underground skeleton construction, which can extremely easily construct the underground side wall and ensures drainage, and uses the method. The task was to provide concrete formwork.

[0007]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a method of constructing a double-drained underground wall by embedding reinforcing members such as truss bars at appropriate intervals in the vertical direction, and forming a part of the reinforcing members. A plurality of longitudinally permeable porcelains formed by forming a PC concrete board whose surface protrudes from the alligator and made of a mesh material with a fine mesh, allowing only water to permeate through the mesh but not allowing concrete to permeate The pipe is arranged so that the surface of the PC concrete plate from which a part of the reinforcing material is protruded is substantially parallel to the reinforcing material, and is further formed of a mesh material having a fine mesh. A horizontal permeable pipe formed to allow only water to permeate but not to penetrate concrete is placed at the lower end of the surface of the PC concrete plate in a direction substantially perpendicular to the vertical permeable pipe and the lower end of the vertical permeable pipe. Part A concrete formwork arranged in contact with each other is formed, a plurality of concrete forms are continuously erected, and the surface of the PC concrete plate on which the reinforcing material, the vertical water permeable pipe and the horizontal water permeable pipe are provided. Casting alligator into concrete to form a cast-in-place concrete wall with a vertical water-permeable pipe and a horizontal water-permeable pipe inside as a water-permeable passage, and forming the double underground wall with this cast-in concrete wall and PC concrete plate Thereby, the above-mentioned problem is solved.

In addition, as a concrete form used in the method of constructing the double underground wall for drainage, reinforcing materials such as truss bars are buried in the vertical direction at appropriate intervals, and a part of the reinforcing material has an uneven surface. Forming a PC concrete board that protrudes and is formed of a mesh material with a fine mesh, while allowing only water to permeate from the mesh, forming a vertical permeable pipe and a horizontal permeable pipe that does not transmit concrete, A plurality of vertical water-permeable pipes are arranged so that the surface of the PC concrete plate from which a part of the reinforcing material projects is substantially parallel to the reinforcing material, and the horizontal water-permeable pipe is connected to the surface of the PC concrete plate. The above-mentioned problem is solved by arranging the lower end portion in a direction substantially perpendicular to the vertical permeable pipe and arranging the lower end portion in contact with the lower end portion of the vertical permeable pipe.

[0009]

According to the method for constructing a double-drained underground wall according to the present invention and a concrete formwork used in the method, reinforcing materials such as truss bars are buried in the longitudinal direction at appropriate intervals, and one of the reinforcing materials is used. PC whose part protrudes from the surface
A concrete plate is formed, formed of a mesh material with a fine mesh, and a plurality of vertical water-permeable pipes formed to allow only water to permeate through the mesh and not to pass through concrete. The surface of the protruding PC concrete plate is arranged so as to be substantially parallel to the reinforcing material, and furthermore, is formed of a fine mesh material, and only water is allowed to permeate through the mesh, and the concrete is A horizontal water permeable pipe formed so as not to penetrate is placed at the lower end of the PC concrete plate in a direction substantially perpendicular to the vertical water permeable pipe, and is placed in contact with the lower end of the vertical water permeable pipe. Concrete formwork is formed, a plurality of concrete formwork are erected continuously, and concrete is applied to the surface of a PC concrete plate on which reinforcements, vertical permeable pipes and horizontal permeable pipes are provided. It was set, the vertical permeability pipes and horizontal permeability in the pipe to form a pouring concrete wall comprising a permeable passage, constituting a double ground sidewalls in this pouring concrete wall and PC concrete plate.

[0010] Then, the protruding portion of the reinforcing material such as a truss bar is buried in the cast concrete wall formed by casting, whereby the cast concrete wall and the PC concrete plate are firmly connected. At the same time, a double underground wall structure consisting of a cast concrete wall and a PC concrete board is provided, and a plurality of vertical water permeable pipes are arranged vertically inside it, and the vertical permeable pipe extends over the entire lower end of the PC concrete board. The structure is such that the horizontal permeable pipe is arranged in a direction substantially perpendicular to the pipe.

As a result, the plurality of vertical permeable pipes and the horizontal permeable pipes become a non-concrete permeable passage as it is, and water generated by cracks and dew on the underground wall passes through the permeable passage, that is, the vertical permeable pipe. It is discharged from the permeable pipe to the horizontal permeable pipe.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

Reference numeral 1 shown in the figure is a PC (precast) concrete plate. In this PC concrete plate 1, reinforcing members 2 such as truss bars are buried in the longitudinal direction at appropriate intervals, and a part of the reinforcing members 2 is provided. Are formed so that the surface protrudes in a series of alligators.

Further, as a concrete structure of the PC concrete board 1, a main reinforcing bar 5 is buried in the PC concrete board 1, and a truss bar as a reinforcing material 2 is fixed to the main reinforcing bar 5 in a state where two truss bars are combined. As described above, a part (for example, half) of the reinforcing member 2 is formed so that the surface thereof protrudes in the longitudinal direction in a series. The protruding portion of the reinforcing member 2 is generally called an anchor, and is used for firmly connecting the concrete that has been cast at the time of concrete setting, which will be described later.

In this case, the reinforcing member 2 may be made of a material other than the truss bars, and may have a structure that protrudes intermittently instead of in series.

On the surface of the PC concrete board 1 on which a part of the reinforcing material 2 projects, a suitable number of, in fact, a plurality of, vertically permeable pipes 3 are arranged substantially parallel to the reinforcing material 2. A concrete form P is formed by arranging a horizontal water permeable pipe 4 in a direction substantially orthogonal to the vertical water permeable pipe 3 over the entire surface of a lower end 1a of the surface of the PC concrete plate 1. are doing. The horizontal permeable pipes 4 are arranged in contact with the lower end portions of the plurality of vertical permeable pipes 3.

The horizontal water permeable pipe 4 and the vertical water permeable pipe 3 are formed of a mesh material with a fine mesh, and the mesh is set so that only water can pass through the mesh but not concrete. ing.

The construction of the drainage double underground wall using the concrete form P thus formed will be described. First, a part of the reinforcing material 2, the vertical permeable pipe 3 and the horizontal permeable pipe 4 are projected. A plurality of concrete forms P are erected continuously so that the concrete surface can be cast on the surface.

Then, concrete is poured along with the surface on which the part of the reinforcing material 2 and the vertical permeable pipes 3 and the horizontal permeable pipes 4 protrude, and the concrete is hardened to form the poured concrete wall 6. Form.

Then, as shown in FIGS. 4 and 5, concrete is filled around the horizontal water permeable pipe 4 and the vertical water permeable pipe 3 and the inside of the horizontal water permeable pipe 4 and the vertical water permeable pipe 3 is filled. A space that becomes a water passage is secured, and
Part of the reinforcing material 2 is buried in the cast concrete wall 6,
The C concrete board 1 and the cast concrete wall 6 are firmly connected to each other, so that a double wall structure of the cast concrete wall 6 and the PC concrete board 1 is formed.

By the way, water generated by cracks and dew condensation on the underground wall penetrates into the horizontal permeable pipe 4 and the vertical permeable pipe 3 which are non-concrete parts through which concrete does not pass. You will pass through. That is, the water flows from the vertically permeable pipe 3 to the horizontally permeable pipe 4 and is discharged.

It goes without saying that the present invention is not limited to the above-described embodiment.

[0023]

Accordingly, the construction method of the present invention embeds reinforcing materials such as truss bars in the longitudinal direction at appropriate intervals,
A part of this reinforcing material forms a PC concrete plate whose surface protrudes from the surface, and is formed of a mesh material with a fine mesh. At the same time, only water permeates through the mesh and concrete does not permeate. The formed multiple vertical permeable pipes,
The surface of the PC concrete plate from which a part of the reinforcing material is projected is arranged so as to be substantially parallel to the reinforcing material, and furthermore, is formed of a fine mesh material, and only water is discharged from the mesh. A horizontal water permeable pipe formed so as to allow permeation and concrete not to pass through is disposed at the lower end of the PC concrete plate in a direction substantially perpendicular to the vertical water permeable pipe, and at the lower end of the vertical water permeable pipe, respectively. A concrete formwork arranged in abutting condition is formed, a plurality of concrete formwork are erected continuously, and the surface of a PC concrete plate on which reinforcing materials, vertical water permeable pipes and horizontal water permeable pipes are provided is shown. Concrete is cast in the vertical permeable pipe and the horizontal permeable pipe to form a cast concrete wall with a permeable passage,
Since this concrete wall and PC concrete plate constitute a double underground side wall, in the underground skeleton construction, as in the past, there are many processes, time and cost are required, and the direction of water flow is The inconvenience of being unable to perform efficient drainage without being determined can be eliminated, and the double underground wall capable of surely draining can be constructed extremely easily at low cost. In addition, the protruding portion of the reinforcing material such as a truss bar is buried in the cast concrete wall, and a double underground wall structure in which the cast concrete wall and the PC concrete plate are firmly connected is formed.
Further, a plurality of vertical water-permeable pipes formed of a mesh material having a fine mesh and formed so as to allow only water to permeate through the mesh and not to permeate concrete are used to form a PC in which a part of a reinforcing material protrudes. The surface of the concrete plate is arranged so as to be substantially parallel to the reinforcing material, and furthermore, is formed of a mesh material having a fine mesh, and allows only water to permeate from the mesh, so that concrete does not permeate. A concrete formwork in which the formed horizontal water permeable pipe is disposed at the lower end of the PC concrete plate in a direction substantially perpendicular to the vertical water permeable pipe, and is disposed in contact with the lower end of the vertical water permeable pipe. The concrete concrete form was continuously erected, and concrete was cast on the surface of the PC concrete plate on which the reinforcing material, the vertical permeable pipe, and the horizontal permeable pipe were installed. When the REIT is cast, concrete is filled around the horizontal permeable pipe and the vertical permeable pipe, but concrete does not pass through the horizontal permeable pipe and the vertical permeable pipe, and the horizontal permeable pipe and the vertical It is possible to reliably secure a space serving as a water-permeable passage in the water-permeable pipe. In particular, the vertical water permeable pipe and the horizontal water permeable pipe are formed of a fine mesh material, and are formed so that only water can pass through the mesh but not concrete, so that cracks and dew condensation can occur. Water generated by the vertical and horizontal water permeable pipes can be permeated into the pipes from the entire circumference, and water can be smoothly and evenly transmitted. It is possible to form a double underground side wall that can flow and discharge smoothly into the pipes, and that can perform efficient and reliable drainage treatment.

Further, in the concrete formwork of the present invention, a reinforcing member such as a truss bar is buried in the longitudinal direction at an appropriate interval, and a part of the reinforcing member has a P-shaped surface.
C Form a concrete plate, formed of a mesh material with a fine mesh, form a vertical water permeable pipe and a horizontal water permeable pipe that allows only water to permeate through the mesh and do not transmit concrete, The permeable pipe is arranged so that the surface of the PC concrete plate from which a part of the reinforcing material protrudes is substantially parallel to the reinforcing material, and the horizontal water permeable pipe is disposed at the lower end of the PC concrete plate. It is arranged in a direction substantially perpendicular to the vertical permeable pipe, and is arranged so as to be in contact with the lower end of the vertical permeable pipe, so the configuration is simple, easy to manufacture, easy to handle, and protrude. A part of the reinforcing material can be firmly connected to the cast concrete wall, and the vertical and horizontal water permeable pipes can be used for drainage to ensure drainage. In particular, since the horizontal permeable pipe is arranged such that the surface of the PC concrete plate is arranged at the lower end portion in a direction substantially perpendicular to the vertical permeable pipe and is arranged in a state of contact with the lower end portion of the vertical permeable pipe, In addition, water generated by cracks and dew can be transmitted through the entire surface of the vertical permeable pipe or the horizontal permeable pipe into the pipe, and the water can be smoothly and evenly transmitted. Moreover, the water permeable passage in the vertical water permeable pipe and the water permeable passage in the horizontal water permeable pipe can be easily and reliably connected to each other, and the water in the plurality of vertical water permeable pipes can be horizontally permeable. It can be discharged smoothly into the sex pipe.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which a concrete formwork according to an embodiment of the present invention is placed sideways.

FIG. 2 is a front view of a concrete formwork according to one embodiment of the present invention.

FIG. 3 is an enlarged cross-sectional view taken along line AA in FIG. 2;

FIG. 4 is a longitudinal sectional view of an underground wall according to an embodiment of the present invention in a construction state.

FIG. 5 is an enlarged cross-sectional view taken along line BB in FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 PC concrete board 1a Lower end 2 Reinforcement material 3 Vertically permeable pipe 4 Laterally permeable pipe 5 Main reinforcement 6 Casting concrete wall P Concrete formwork

Continuation of the front page (56) References JP-A-61-151354 (JP, A) JP-A-62-148642 (JP, U) JP-A-58-136511 (JP, U) (58) Fields investigated (Int) .Cl. ⁷ , DB name) E02D 29/00 E02D 31/02

Claims (2)

(57) [Claims] 1. A with embedded longitudinally at appropriate intervals such reinforcement truss muscle, a portion of the reinforcement of this forms the PC concrete plate as surface Gawani <br/> protrusion, Narrow eyes
It is formed of a mesh material, and only water can pass through the mesh.
To form a complex formed so that concrete does not pass through.
Number of vertically permeable pipes , P
C When the surface of the concrete plate is almost parallel to the reinforcing material
And formed of a fine mesh material
With, from network by transmitting only water, a transverse permeable pipe the concrete was formed not transmitted, PC co
The surface of the concrete plate is approximately the same as the vertical permeable pipe at the lower end.
It is arranged at right angles to the bottom of the vertically permeable pipe.
Forming a respective contact with the placed concrete formwork,
Multiple concrete forms are continuously erected, and reinforcements and vertical
PC conc with water permeable pipe or horizontal water permeable pipe
And Da設the concrete on the surface side of the REIT plate, vertical permeability
Casting pipe with a water-permeable passage inside the water-permeable pipe and the horizontal water-permeable pipe
Concrete wall and PC
A method of constructing a double underground drainage wall , comprising a double underground wall with a concrete plate . With wherein embedded in the longitudinal direction such reinforcement of the truss muscle at suitable intervals, some of the reinforcement forms a PC concrete plate as surface Gawani <br/> protruding eyes Thin
It is formed of a mesh material, and only water can pass through the mesh.
Let the concrete pass through the vertical permeable pipe
Form a horizontal water permeable pipe and supplement multiple vertical water permeable pipes .
The surface of the PC concrete board where a part of the strong wood protrudes
Alligator is disposed so as to be substantially parallel to the reinforcing material, and a horizontal water-permeable pipe is vertically penetrated to the lower end portion of the PC concrete plate.
It is arranged in a direction substantially perpendicular to the water pipe and has vertical water permeability.
Concrete form to be used to the pipe lower end is constructed by arranging the contact with the construction of the drainage double ground sidewalls, wherein.