JPH0738396Y2 - Form supporting and fixing device for retaining wall - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention relates to a device for supporting and fixing a formwork used for constructing a retaining wall on a slope in contact with a road surface in a residential land or slope. It is a thing.

(Prior Art) Conventionally, when constructing a retaining wall, firstly, pipes and the like are vertically and horizontally combined at the enforcement position of the retaining wall, and a formwork corresponding to the front and rear surfaces of the retaining wall is attached along with the combined pipes. After connecting the attached formwork with a connecting fitting called a clip, and then connecting the front and back formwork with a connecting fitting called a seper, the vertically and horizontally combined pipes were removed and ready-mixed concrete was poured. .

(Problems to be solved by the invention) However, in the above-mentioned method, not only a high technique and great labor and time are required for assembling and removing the pipe, but also an extremely large number of pipes and metal fittings associated therewith are used at the work site. Therefore, I had a hard time organizing it.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a retaining wall formwork supporting and fixing device having a simple structure and good operability.

(Means for Solving the Problems) In order to achieve the above object, according to the present invention, a first channel steel (1) on which a retaining wall frame supporting and fixing device can be installed substantially horizontally, and the first groove The second channel steel (2), which has a width smaller than that of the profile steel (1) and has a mold mounting surface (2a) on the outside, is opposed to the second channel steel (2). The first grooved steel (1) and the second grooved steel (2) are supported so that they can be housed in the groove of the first grooved steel (1) and one end of which is rotatably supported. A support rod (5) having long bolts (6, 6 ′) at both ends thereof is inserted between the long bolts (6, 6 ′).
One of the long bolts (6) of 6 ') is a reverse screw,
One end of one long bolt (6) is attached to one of the groove steels (1) of the first groove steel (1) and the second groove steel (2) via a pivot, and One end of the other long bolt (6 ') can be attached to and detached from the other channel steel (2) through a support pin (10) in a plurality of pin holes (11) provided at arbitrary intervals in the longitudinal direction. The shaft is supported, and the second channel steel (2) is rotated from 45 degrees with respect to the first channel steel (1).
It was tilted in the range of 90 degrees and fixed.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a plan view of a retaining wall formwork supporting and fixing device according to the present invention, FIG. 2 is a front view of FIG. 1, FIG. 3 is a bottom view of FIG. 1, and FIG. 4 is of FIG. AA sectional view, FIG. 5 is an enlarged left side view in FIG. 2, FIG. 6 is an enlarged sectional view taken along the line BB in FIG. 2, and FIG. 7 is a side view showing a use state of the present embodiment. FIG. 8 is a perspective view showing a usage state of this embodiment.

FIG. 1 to FIG. 3 show a state in which the mold supporting device for a retaining wall according to the present invention is not used. (1) and (2) are groove type steels, and The groove sides are combined so as to face each other, and one end (the left end in the drawing) of which is rotatably supported by a bolt 3. Here, the second groove steel (2) is formed to have a smaller width than the first groove steel (1), and when the second groove steel (2) is folded, the second groove steel is formed in the groove of the first groove steel (1). The shape steel (2) can be stored. The outer flat surface of the second grooved steel (2) is a mold mounting surface (2a) on which the mold (12) is mounted.

A bolt hole (4) is bored in the bottom of the first channel steel (1), and an anchor bolt that is vertically projected and fixed from the foundation concrete of the retaining wall is inserted and fixed with a nut. There is. The first channel steel (1) and the second channel steel (2) can be connected by a support rod (5). A female screw is engraved on both ends of the support bar (5), and long bolts (6, 6 ') are screwed into both ends of the support rod (5), and one of the long bolts is a reverse screw, a so-called turnbuckle. When the support rod (5) is rotated around the axis, the long bolts (6, 6 ') move in and out of the support rod (5) so that the length thereof can be expanded and contracted.

A shaft tube (7) is orthogonally fixed to one end of one long bolt (6 ') of the support rod (5), and is supported on the first grooved steel (1) via a pivot shaft 8. Has been done. Further, a shaft tube (9) is fixed to the end of the other long bolt (6 '), and a plurality of pin holes (11) are provided at arbitrary intervals in the longitudinal direction of the side surface of the channel steel (2). A support pin (10) is used to support the shaft so that it can be detachably connected.

By selecting the pin hole (11) and rotating the support rod (5) appropriately to expand and contract, the second grooved steel (2) that has been raised up to 45 mm relative to the first grooved steel (1). It is designed to be able to have a tilt angle in the range of 90 degrees to 90 degrees.

(Operation) Next, a usage method and an operation of the device according to the present embodiment will be described.

First, an anchor bolt is driven vertically onto the foundation concrete at the position where the retaining wall is to be constructed, and the bolt hole (4) of the first grooved steel (1) is inserted into this anchor bolt and fixed substantially horizontally with a nut. . Then, the second channel steel (2) and the support rod (5) are raised, and the second channel steel (2) is tilted to form a pin hole (11) of the second channel steel (2). The support rod (5) is aligned with the hole of the shaft tube (9), and the support pin (10) is inserted and connected. At that time, the position of the pin hole (11) for connecting the support rod (5) is determined by the required second channel steel (2).
The inclination angle of, that is, the position approximate to the inclination angle of the retaining wall to be constructed is appropriately selected. Then, the support rod (5) is rotated around the axis to expand and contract its length to make a fine adjustment.
The inclination angle of the channel steel (2) is determined (see FIG. 7).

When constructing an actual retaining wall, for example, as shown in Fig. 8, when constructing a retaining wall with a trapezoidal cross section that has an inclined surface on the front and a vertical surface on the back, place it on the front side of the retaining wall. A plurality of this device, in which the 2 channel steel (2) is fixed at an arbitrary inclination angle, is installed at regular intervals along the lateral direction of the retaining wall, and the 2nd channel steel (2) is vertically fixed on the back side. Install multiple units of this device in the same manner. Then, the molds (12) are placed on the mold mounting surfaces (2a) of the respective second channel steels (2) so that the molds (12) are placed next to each other. Formwork (1 that is connected and connected to the front and back sides of the retaining wall)
2) is connected by a conventional method. That is, the mold (12) is fixed using the clip and the separ described above. The device remaining inside the last assembled mold is removed in the reverse order of installation. When the above work is completed, a retaining wall form having a desired trapezoidal cross section is completed.

After that, the retaining wall is completed when the concrete is filled into this mold and cured to remove it, and the retaining wall is completed. (Effect) The present invention is configured as described above, and has the following unique action and effect. Is played. That is, since the present device can appropriately fix the second grooved steel with respect to the first grooved steel within the range of the inclination angle of 45 to 90 degrees, it is possible to support the mold from both inside and outside of the retaining wall. This has the excellent effect that even small concrete retaining walls for small-scale residential land development can be constructed in a small turn.

In addition, the present apparatus is configured such that a support rod whose length is adjustable is inserted inside the first channel steel, and one end of the support rod is provided in plural in the longitudinal direction of the side surface of the second channel steel at arbitrary intervals. Since the device can be detachably connected to the provided pin hole via the support pin, when the device is not used, the connection between the support rod and the second channel steel is released and then the device is folded and the second The channel steel can be housed within the channels of the first channel steel. Therefore, this device has an excellent effect that it is not only easy to transport and store but also can be installed extremely easily.

Further, since many connecting metal fittings and the like which have been conventionally used for assembling pipes can be used in a small amount, there is an excellent effect that materials and equipment on the work site are not confused and the troubles related to the arrangement are eliminated.

[Brief description of drawings]

FIG. 1 is a plan view of a retaining wall formwork supporting and fixing device according to the present invention, FIG. 2 is a front view of FIG. 1, FIG. 3 is a bottom view of FIG. 1, and FIG. 4 is of FIG. AA sectional view, FIG. 5 is an enlarged left side view in FIG. 2, FIG. 6 is an enlarged sectional view taken along the line BB in FIG. 2, and FIG. 7 is a side view showing a use state of the present embodiment. FIG. 8 is a perspective view showing a usage state of this embodiment. 1 ... 1st channel steel, 2 ... 2nd channel steel 2a ... Formwork mounting surface, 3 ... Bolt 4 ... Bolt hole, 5 ... Support rod 6,6 ... Long length Bolt, 7 ... Shaft tube 8 ... Axis, 9 ... Shaft tube 10 ... Support pin, 11 ... Pin hole 12 ... Formwork

Claims (1)

[Scope of utility model registration request] 1. A first channel steel (1) which is installed substantially horizontally.
And a second grooved steel (2) having a lateral width smaller than that of the first grooved steel (1) and having a mold mounting surface (2a) on the outside.
Are opposed to each other, and the second grooved steel (2) is assembled so as to be accommodated in the groove of the first grooved steel (1), and one end of the first grooved steel (2) is openably and closably supported to form the first groove. Between the shaped steel (1) and the second channel steel (2), long bolts (6,
6 ') a supporting rod (5) is inserted, and one of the long bolts (6, 6') is a reverse screw, and one of the long bolts (6) is One end is attached to one of the first channel steel (1) and the second channel steel (2) via a pivot shaft, and the other long bolt (6 ') is attached. One end of the second groove is detachably supported through a support pin (10) in a plurality of pin holes (11) provided in the longitudinal direction of the other channel steel (2) at arbitrary intervals. A retaining wall formwork supporting and fixing device, characterized in that a shaped steel (2) is inclined and fixed with respect to the first channel steel (1) in a range of 45 ° to 90 °.