JPH0735870Y2 - Formwork for slope concrete wall molding - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a formwork for molding a concrete wall along a slope in order to prevent the slope from collapsing and stabilize the ground.

As a structure for protecting a slope formed on a stepped portion such as a residential land or another land for construction, there is a conventional masonry method in which stones are piled to protect the slope, and the slope. A concrete placing method has been mainly used in which fresh concrete is poured into a form frame provided at a predetermined interval, and the concrete is cured and cured to construct a concrete wall.

[Problems that the device is trying to solve]

However, in the former masonry method, blocks must be stacked in layers while connecting stone blocks or concrete blocks with mortar, which requires time and effort for construction, and requires skill and experience. Therefore, the construction period is long and the shortage of masonry engineers causes a serious delay in construction work. On the other hand, the latter concrete pouring method is relatively simple in construction, but requires space for holding the formwork with so-called support legs, so there is room for construction in narrow places and sites. It is impossible to construct in a place where there is no. The invention is
In view of such problems of conventional slope protection wall construction technology, it is necessary to provide a formwork for slope concrete wall molding that can be performed in a relatively simple concrete construction and in a narrow place with little room on the site. To aim.

[0004]

[Means for Solving the Problems] That is, in order to achieve the above-mentioned object, in the present invention, in a formwork for molding a concrete wall on a slope, one side is a concrete molding surface, and the rear surface is formed in the vertical direction. A rectangular frame 1 having a joint 2 having a through hole with a polygonal cross section and having a bolt hole 7 at the periphery.
A base joint 10 having a through-hole having a square cross section similar to that of the joint 2, and a support piece 17 for swingably mounting the base joint 10 at a fulcrum and fixing it at a desired angle are provided to project upward. The base member 16 and the frame body 1 which is vertically connected.
Provided is a formwork for forming a sloped concrete wall, characterized in that it is provided with joints 2 of each other and both ends of the joint 2 and the base joint 10 and joint pins 5 having a polygonal cross section for fixing these joints to each other. To do.

[0005]

[Function] In the concrete wall molding form according to the present invention,
First of all, when making basic concrete for concrete wall,
The base member 16 is embedded in the foundation concrete, and the support piece 17 protruding above the base concrete is protruded at a predetermined distance from the slope of the ground. After the foundation concrete has set, the foundation joint 10 is attached to the support piece 17, and the inclination of the foundation joint 10 is adjusted to an appropriate angle, usually parallel to the slope. After that, the joint 2 of the frame body 1 is joined onto the foundation joint 10 and both ends of the joining pin 5 are joined to the joint 10,
The frame body 1 is fixed on the base member 16 at a predetermined angle by fitting the frame body 1 to the base member 16. Further, another frame body 1 is superposed on this frame body 1, and the joint pins 2 and 2 of the frame body 1 are also joined with the joint pin 5.
By joining the upper and lower sides, the frame 1 can be extended upward at a predetermined angle. Further, the frame bodies 1 are attached to the base member 16 on both sides of the frame body 1 in the same manner as described above. And
By connecting the frame bodies 1 and 1 that are vertically and horizontally adjacent to each other with bolts that pass through the bolt holes 7, the frame body 1 is assembled to a predetermined width and height along a plane parallel to the slope of the ground. . Therefore, a concrete slope is constructed by driving fresh concrete between the frame 1 and the slope, and curing and hardening the concrete.

[0006]

Embodiments of the present invention will now be described in detail with reference to the drawings. As shown in FIG. 1, a mold for molding a sloped concrete wall according to the present invention includes a frame body 1 having a concrete molding surface, a base member 16 fixed to a foundation, and a base joint 10 attached to the base member. The frame body 1 is composed of joints 2 of the frame body 1 and 2, or the joint pin 5 for vertically connecting and fixing the joint 2 of the frame body 1 and the basic joint 10.

The frame 1 is a horizontally long plate-like member, and the front side in FIG. 1 is the back side and the other side is the molding surface. The back side of the frame body 1 is reinforced by vertical and horizontal ribs 3, and between the ribs 3, elliptical decorative portions 4, 4, ... Which are concave on the molding surface side are regularly arranged vertically. ing. The outermost rib 3 is provided with three bolt holes 7, 7 ... On the upper surface and the lower surface, and two on both side surfaces. Further, a joint 2 is provided vertically on the back side from one end of the frame 1, and as shown in FIG. 3, the joint 2 has a polygonal cross section, that is, a through hole having a square cross section in the case of FIG. It consists of square tubular members that are oriented. The upper end side of the joint 2 is located at a position slightly lower than the edge of the uppermost rib 3 of the frame body 1.

The base member 16 is composed of an L-shaped plate member in which anchor members project from the lower side toward both sides at right angles, and the portion projecting above the connecting member mounting portion 17
Has become. A through hole 19 is provided at the center of the upper end of the connecting member attachment portion 17, and an elongated hole 20 is provided below the through hole 19 along an arc line drawn around the center of the through hole 19.

The base joint 10 is, like the joint of the frame body 1, a square tubular member having a polygonal cross section, that is, a through hole having a square cross section in the drawing, provided in the longitudinal direction, but its height is the frame body. It is about half of the joint 2 of 1. This foundation joint 1
A plate-shaped bracket 11 is provided so as to project from 0, and two through holes 12 and 13 are provided at the top and bottom of the bracket 11. The distance between the through holes 12 and 13 is equal to the distance between the through hole 19 of the connecting member mounting portion 17 and the elongated hole 20.

The joint pin 5 is a rod-shaped member having a polygonal cross section corresponding to the inner diameters of the joint 2 of the frame 1 and the base joint 10, that is, a square cross section in the figure, and the length thereof is the joint 2.
Is almost the same length as. Both ends of the joint pin 5 are tapered stoppers 6 at the tips and thicker flanges at the middle portions so that they can be easily fitted to the joint 2 and the base joint 10.

Next, a construction procedure for constructing a sloped concrete wall using this formwork for sloped concrete wall will be described. FIG. 2 shows a state in which a concrete wall e is constructed on a slope b formed between a ground a and a ground d having different heights.

First, the slope for constructing the concrete wall e is cut down, and the bottom of the cut-off portion is provided with a slope so that the slope b side is downward, and concrete is struck to form the water-stopping concrete board 24. Crushed stones c are piled on top of it and tamped to make a base. Further, a crushed stone g is laid on the lower front of the slope b, a mold is assembled on the crushed stone g, and fresh concrete is placed therein, which is cured and hardened to form a basic concrete f. At this time, the base member 16 is embedded in the ready-mixed concrete in advance, and the support piece 17 protruding above the base member 16 is protruded at a predetermined distance from the slope b. Such base members 16 are arranged side by side at intervals of the length of the frame body 1 in a direction parallel to the slope b.

After the foundation concrete f has hardened, the through holes 19 and the long holes 20 of the support piece 17 are aligned with the through holes 12 and 13 of the bracket 11 of the foundation joint 10, respectively, and the bolts 14 and 15 are attached thereto. Through, and screw a nut into the tip of the bolts 14 and 15 (see FIG. 2). And the upper through hole 1
Foundation joint 1 with bolt 14 passing through 2 and 19 as a fulcrum
Adjust the inclination of 0 to an appropriate angle, and then lower bolt 1
5. Tighten the bolts in the order of the upper bolt 14,
Fix the base joint 10. After that, the joint 2 of the frame 1 is joined onto the basic joint 10 and both ends of the joining pin 5 are fitted into the joints 10 and 2, so that the frame 1 is attached onto the base member 16 at a predetermined angle. Fixed. The intermediate stopper 6 of the joining pin 5 is sandwiched between the base joint 10 and the joint 2, and both ends of the joint pin 5 are fitted to the joint 2 and the base joint 10, respectively. In this way, the frame 1 is attached to the base members 16 installed side by side on the front surface of the slope b, and bolts are passed through the bolt holes 7 of the frame 1 arranged side by side to connect and fix the frame 1 to each other. To do.

Further, another frame body 1 is superposed on this frame body 1, and the joints 2 and 2 are also vertically joined by the joining pin 5, whereby the frame body 1 is extended upward at a predetermined angle. can do. Then, the frame bodies 1 and 1 that are vertically and horizontally adjacent to each other are connected by bolts that pass through the bolt holes 7, so that the frame body 1 is assembled to a predetermined width and height with a proper distance from the slope b. . In this case, a plastic pipe 22 such as a vinyl chloride pipe is previously provided between the crushed stone c side and the frame body 1.
Etc. are installed. Further, when the holding of the frame body 1 is unstable, it is preferable to pass the reinforcing bolt 21 between the crushed stone c side and the frame body 1.

In this state, after constructing a reinforcing bar between the frame body 1 and the slope, if necessary, by pouring fresh concrete into it and curing and hardening it, the slope concrete wall e is constructed. To be done. Here, the pipe 22 serves as a drainage pipe that drains water that has permeated from the ground a side to the crushed stone c side to the front surface side of the concrete wall e. Also, the reinforcing bolt 2
Since No. 1 is embedded in the concrete wall e, only the extra tip portion protruding from the wall surface of the concrete wall e is cut off.

For such concrete driving, after assembling the frame body 1 to an appropriate height, the green concrete is driven, and after it is hardened, the frame body 1 is further assembled and the green concrete is driven. For example, it can be performed at appropriate heights in steps. Also, in FIG.
When constructing a relatively thick concrete wall e,
When constructing a thin concrete wall, construction can be performed in exactly the same way.

Next, the embodiment shown in FIG. 4 will be described. In the above-mentioned embodiment, the joint 2 of the frame body 1 is attached so as to be embedded in the rib 3. However, in this embodiment, a square pipe is used. The joint 2 is attached to the longitudinal direction of the back surface of the frame body 1 and fixed by welding or the like, and the joint 2 is not embedded in the rib 3 of the frame body 1. The other structure is the same as that of the above embodiment.

[0018]

As described above, according to the present invention, it is possible to provide a formwork for sloped concrete wall molding which can be carried out by a relatively simple concrete construction and in a narrow place where there is no room on the site. It will be possible.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a mold for molding a sloped concrete wall showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a construction state by a formwork for forming a sloped concrete wall showing the embodiment.

FIG. 3 is an exploded perspective view of an essential part of a mold for molding a sloped concrete wall showing the same embodiment.

FIG. 4 is an exploded perspective view of essential parts of a mold for molding a sloped concrete wall showing another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Frame 2 Joint of frame 5 Joint pin 10 Basic joint 16 Base member 17 Support piece of base member

Claims (1)

[Scope of utility model registration request] 1. A formwork for molding a concrete wall on a slope, one side of which is a concrete molding surface, which has a joint 2 having a through-hole having a polygonal cross section in the longitudinal direction of its rear surface, and a bolt on its periphery. Basic joint 10 having a rectangular frame body 1 having a hole 7 and a through hole having a square cross section similar to that of the joint 2.
And a base member 16 on which a supporting piece 17 for swingably attaching the basic joint 10 and fixing it at a desired angle is provided to project upward, and a joint 2 between the frame bodies 1 connected to each other vertically. And both ends are fitted into the joint 2 and the foundation joint 10,
A mold for molding a sloped concrete wall, comprising a joint pin 5 having a polygonal cross section for fixing these joints to each other.