JPH0786235B2 - How to build a fence - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of constructing a fence. [0002] In order to stabilize the sloped soil, a lightweight steel frame has recently been used in place of the concrete frame. In each of these lightweight method frames, the method frame is fixed to the slope using anchor pins. An anchor pin having a diameter of 13 to 22φ and a length of 50 to 100 cm is usually used for each frame (usually 1 m ² per frame). However,
Such a thin and short anchor pin lacks a clear rationale, and practitioners have questioned its effect. On the other hand, the ratio of anchor pin and anchor pin driving costs to the construction cost of the lightweight method frame is large, and especially in the case of rock slope, it is necessary to make holes for anchor pins one by one with a drilling machine. It is a cost ratio. [0006] From the above,
There is a strong demand among the parties concerned to develop a lightweight legal framework that does not require anchor pins. An object of the present invention is to provide a method for forming a lightweight fence with excellent strength, effect and workability in response to such a demand. In this invention, a law fence is referred to as a law fence instead of a law frame because a frame board is erected in a horizontal direction, and like a conventional law frame, a plurality of frame boards are gathered together to form a masu. This is because it is a little different from the formation of. In order to solve this problem, according to the present invention, a plurality of vertical beams are erected vertically on a slope at predetermined intervals, and then adjacent vertical beams are provided. A vertical fence is constructed by erection of a band-shaped fence plate in the transverse direction at a predetermined interval between the beam and the vertical beam. With this structure, since the vertical beam supports the load and moves, the anchor pin can be omitted. Embodiment 1 An embodiment of the present invention will be described in detail below with reference to the drawings. <A> Longitudinal beam A horizontally long rectangular steel plate is bent at right angles by two polygonal lines at right angles to the long sides in the central portion to form a connecting fitting 1 having a U-shaped cross section. Two upper and lower circular connecting holes 3 are provided in the two bent connecting pieces 2, respectively, and two upper and lower circular connecting holes 3 are provided in the central substrate 4. (See Figure 2). The connecting piece is 10 to 20 x 5 to 15 cm,
The board defines the distance between the two connecting pieces.
0-20 × 1.5. Generally, the size is about 5 cm. Cross section of such a connecting metal fitting is 10 to 20 × 5 to 10c.
A vertical beam A is constructed by mounting the long rectangular steel tube 5 of m at intervals of 50 cm to 1 m on both sides. Attachment may be performed by using metal fittings such as bolts and nuts, or by welding. At the lower end of the vertical beam, bottom plates 6 protruding from both side edges are attached (see FIG. 3). <B> Fence plate A strip-shaped galvanized steel sheet is formed into a corrugated cross section using a roll forming machine. On the slope avoiding the apex of the wave, by the continuous press molding linked with the forming molding, prior to the forming, one or several rows of water draining holes 7 arranged at equal intervals are formed in the longitudinal direction to form the fence plate B. .
The drainage hole also serves as the connection hole (see FIG. 4). Usually, the width of the fence plate is 10 to 20 cm, the length is 50 to 150 cm, the amplitude of the wave defines the thickness of the fence plate, and it is approximately the same as the distance between the two connecting pieces of the connecting metal fittings. 15 to 25 mm, wavelength is 30 to 70 mm, the shape of the drainage hole is a horizontally long elliptical shape,
The size is such that the minor axis is 10 to 20 mm and the major axis is 20 to 30.
mm, and the interval is 5 to 20 cm. <C> Method of constructing the vertical fence A vertical beam A is installed vertically on the slope C. The distance between the vertical beams is usually 1 to 2 m. At the lower end of the vertical beam, a base concrete 8 is placed so that the bottom plate 6 is embedded, and at the upper end, an anchor pin 9 is placed to check the stability of the vertical beam. Next, the fence plate B is erected between the installed vertical beam and the adjacent vertical beam. If standing, drop the fence between the two quick-connecting pieces of the connecting bracket. A common retaining pin 10 is passed through the connecting hole of the connecting fitting and the connecting hole of the fence plate to prevent the fence plate from falling off (see FIG. 1). In addition, a vertical beam is installed here, and then a fence plate is erected. That is, it does not necessarily mean that all the vertical beams are erected before the erection of the fences, but the method of sequentially arranging the fences while installing the vertical beams may be used. Of course. As a means for stabilizing the vertical beam, a horizontal beam may be installed at an appropriate place such as an upper end portion of the vertical beam by using the same material as the vertical beam. In this case, the vertical and horizontal beams must be firmly fixed. The vertical beams and the fence plates are not directly connected, but are loosely connected through connecting metal fittings, which allows flexibility in connection such as length and angle. Therefore, it is not necessary to use unnecessary labor such as re-loading heavy legal frame members many times because the connecting portions are stretched or do not fit like the conventional legal secondary product frame. Further, since the fence plate is provided with a drainage hole and a connecting hole over the entire length, when the fine adjustment of the length does not fit, the fence plate may be cut. Since a plurality of connecting holes of the connecting fittings are provided in a row, the length can be continuously changed by using any one of the connecting holes. Also, since slopes with curved surfaces can be handled as a set of trapezoids, if the intervals of the vertical beams are set wide in the lower part and narrow in the upper part, and if the fence plate is shorter in the upper part according to this interval, Construction on a curved surface is also extremely easy. Also in this case, the advantage is that the cutting / adjustment can be performed as described above. (See FIG. 5) The trapezoidal surfaces are bent on the R slope, but in the case of the present invention, the R and S slopes can be bent freely to some extent, so that the R slope can be easily constructed. The horizontal cross section of the slope is often bent like the R slope, but the vertical cross section does not change the slope within the same slope and often forms a straight line. Even if it is used, it rarely fits into the ground, and a vertical beam made of a steel pipe as in this embodiment can be used. If rocks project on the slope and interfere with the installation of the vertical beams, it is possible to install them by avoiding the rocks and cutting the fence plates. The ease of cutting the fence plate is also effective in such cases. Generally, it is most suitable to stand the frame plate horizontally in order to support the sloped soil. However, in the conventional legal framework, if there is unevenness,
Since it is difficult to carry out the construction such as when R is attached, the shape of the legal frame has been set to a rhombus in many cases. According to the present invention, since the adjustment can be easily performed by the kneading method and cutting, the fence plate can be erected horizontally. Therefore, the effect of stabilizing the soil is large. [Embodiment 2] <a> Longitudinal beam A vertically long rope is bent at right angles by two bent lines at right angles to the long sides in the central portion to form two horizontally long rectangular connecting pieces 2
And a connecting member 1 having a U-shaped vertical cross section, which is composed of a substrate 4 connecting the above. Horizontally elongated oval connection holes 3 are provided at both ends of the connection piece 2, and a through hole 11 is provided at the center.
To provide. The through hole has a circular shape, and the wedge insertion portion 12 is attached at one position (see FIG. 6). The long steel pipe 13 having a circular cross section is pierced through the through holes 11 of the connecting fitting 1 one after another to obtain 50 to 100 c
The connection fittings are fixed to the steel pipe at intervals of m to form a vertical beam A. A bottom plate 6 is attached to the lower end. As a method for fixing the connecting fitting, it is simple and reliable to drive the wedge 14 into the wedge insertion hole (see FIG. 7). The steel pipe is not particularly specified, but is commonly used for building scaffolding, etc. 48.6
If φ round tube is used, it is convenient because it is easily available and various accessories such as joint materials and bottom plates of steel tubes are distributed. It is also possible to use a clamp used for scaffolding as a connecting fitting. Further, since the connecting fitting of this embodiment can be attached to the vertical beam on site, it is extremely convenient in the case of adjusting the vertical fence plate spacing. <B> The same fence plate as in Example 1 is used. <C> Method of constructing method shelf This is almost the same as in Example 1. [Embodiment 3] <A> A connecting piece 2 is formed by bending both ends in a crank shape while leaving the substrate 4 in the central portion of a vertical beam strip-shaped rope plate. Two circular connecting holes 3 are attached to the board, and two laterally elliptical connecting holes 3 are attached to the connecting piece in the longitudinal direction to form the connecting fitting 1 (see FIG. 8). In order to wrap the rope from above and below both sides of a long rectangular steel pipe 5 having a cross section of 10 to 20 × 5 to 10 cm, the connecting metal fittings should be orthogonal to the rope and project to both side edges from 50 cm to 50 cm. Vertical beams A are constructed by mounting them at intervals of 1 m. A bottom plate 6 is attached to the lower end of the vertical beam as in the first embodiment. Bolts and nuts 15 are used to attach the connecting fittings (see FIG. 9). <B> Bar plate A bar plate B is formed by attaching angle members 17 to both side edges of the strip-shaped expanded metal 16 by welding. A plurality of horizontally long elliptical connection holes 3 are provided at equal intervals on the upper and lower surfaces of both ends of the angle member (see FIG. 10). <C> Method of constructing a law fence As in the first embodiment, a vertical beam A is installed on the slope C in the vertical direction. A fence board B is erected between the installed vertical beams.
When standing upright, install the fence plate so that the connecting pieces of the upper and lower connecting fittings are sandwiched by angle members from the mountain side. The fence plate is fixed by penetrating a common long stop pin through the fence plate and the connecting hole of the connecting piece (see FIG. 11). Since the connecting holes are both horizontally long, the length can be easily adjusted. The adaptability of the curved surface to the slope or the like is similar to that of the first embodiment. Fourth Embodiment <a> A longitudinal beam strip-shaped steel sheet is formed into a substantially semicircular center portion in the longitudinal direction, and an extension thereof is approximately 90 on a side having an upper arc leaving a short flat substrate 4. The connection fitting 1 is formed by being bent by 90 degrees and further by about 90 degrees toward the outside. A circular connecting hole 3 is attached to each of the substrates, and two laterally elongated oval connecting holes arranged in the longitudinal direction are attached to the connecting piece (FIG. 12).
reference). A long steel pipe 13 having a circular cross section as in Example 2.
Then, at a distance of 50 to 100 cm, the connecting fitting 1 is fixed from both sides so as to hold the steel pipe. Fixing is done with bolts and nuts through the connecting holes of the board (see Fig. 13). The connecting fitting 1 may be composed of a single connecting piece 2 provided with a through hole 11. It is also possible to attach the connecting protrusion 18 to the connecting piece 2 and insert the connecting protrusion 18 into the connecting hole of the fence (see FIG. 14). The strength of the connecting metal fittings is not required to be so great as it is sufficient to support the weight of soil applied to one fence plate. <B> Bar plate A bar plate B is obtained by forming a strip-shaped galvanized steel plate into a U-shaped cross section using a roll forming machine. Prior to forming, a row of laterally elongated elliptical connecting holes 3 is attached to both side edges. A plurality of rows of drainage holes 7 are also attached to the flat plate portion. A bottom plate will be attached to the lower end of the vertical beam. (See FIG. 15). <C> Method of constructing a fence The method is substantially the same as that of the third embodiment. Fifth Embodiment <a> Vertical beam Horizontally long rectangular steel plate is bent until it substantially overlaps with a center line parallel to the long side, and two bent pieces 22 form an insertion groove 23 of about several mm, A connecting fitting 1 having a U-shaped cross section is formed.
A plurality of connecting holes 3 are provided at both ends of the bent piece so as to pass through the two bent pieces (see FIG. 16). Long H-shaped steel 24
Insert one of the above-mentioned connecting metal fittings above and below the insertion groove 23
In the same direction, and fixed so as to be orthogonal to the rope, to form a vertical beam A. The fixing is performed by an appropriate method such as tightening bolts and nuts 15 on both sides of the shaped steel. Also, the mounting interval of the connecting metal fittings is about 50 cm to 2 m (see FIG. 17). After penetrating the H-shaped steel 24 into a U-shaped connecting fitting having a through-hole 11 through which the H-shaped steel / square steel pipe can pass, tighten the screw 25 through the upper screw hole to fix the connecting fitting and fix the vertical beam A. You may comprise (refer FIG. 18). Also, the cross section U
A vertical beam A may be configured by using two V-shaped connecting fittings connected by the substrate 4 having the through hole 11 similar to the above, and similarly used (see FIG. 19). <B> Fence board The same thing as Example 4 is used. <C> Method of constructing method fence A construction method similar to that of the other embodiments is adopted, but in order to fix the fence plate, the fence plate may be fitted into the concave portion of the U-shaped connecting metal fitting (Fig. 20), the bent side edges of the fence plate may be inserted into the insertion groove 23 of the connecting fitting (FIG. 2).
1). [Other Embodiments] <a> Vertical beam The vertical beam A is not limited to the long-length steel pipe shown in the above-mentioned embodiment, but can be buckled or bent due to the weight of the soil on the entire slope. It does not matter what material or shape it is, as long as it is light enough to be constructed manually or with a light machine. In short, when the vertical beam is installed in all directions, it is sufficient that the weight of the vertical beam can be supported not by the anchor pin in the middle but by the compressive strength of the vertical beam itself. Further, the essence of the present invention is not to use a cast-in-place concrete beam having a large cross section as a vertical beam, but to use a relatively lightweight and portable material. In this sense, the steel material is generally a pipe material, such as H-shaped steel and C-shaped steel, which has a lightweight and strong cross-sectional shape. Other materials such as glass fiber reinforced concrete (GRC) and steel fiber concrete (SFC) may be used. If the vertical beam needs to be heavy, it is also possible to install the vertical beam of the steel pipe and then pour mortar, concrete or the like into it. Moreover, even if it comes to its length, it is not limited to a long object, and it can be connected one after another by inserting it.
A short length may be used. For example, using a connecting metal fitting (see FIG. 22) in which a fitting pipe 26 orthogonal to the connecting piece is provided at the center of the connecting piece 2 of the connecting metal fitting 1 into which the fence plate as shown in FIG. A long vertical beam A may be formed by alternately joining a steel pipe cut to a length of about 2 m and such a connecting fitting while joining them together.
Further, connecting fittings may be used in which fitting pipes 26 are provided so as to be orthogonal to each other on both front and back surfaces of the short rectangular steel pipe 5 into which the fence plate can be inserted with a margin (see FIG. 23). In this case, since the short steel pipe is joined to one steel pipe to form the vertical beam A, the portion joined by the fitting pipe is required to have strength equivalent to that of the steel pipe main body. On the other hand, it is desirable that the connecting fittings have a margin so that the fence plate can be dropped and the connecting angle and length can be adjusted to some extent. If two square steel pipes are piled up in parallel at a slight interval and a bolt / nut 15 is provided with a connecting metal fitting through this gap and a vertical beam A is formed, it is not necessary to make a hole in the square steel pipe. It is convenient that there is no need to make holes, that no rust is generated inside the steel pipe, and that the connecting metal fittings can be attached to any place on site (see FIG. 24). Light groove steel 19 instead of square steel pipe
If the vertical beam A is formed by using two openings facing each other and covering them with a water-permeable material 20 such as a non-woven fabric, the drainage pipes 21 that vertically pass through the inside can be used to remove spring water on the slope. It is useful and convenient (see FIG. 25). <B> fence plate The fence plate B is not limited to the steel plate shown in Examples 1, 2 and 3, but when the soil in the law fence is held and a worker gets on during construction. There is no chance of bending,
As long as it is lightweight, concrete products such as GRC / SFC and durable plastic products may be used. Since we want to remove rainwater and spring water on the slope as quickly as possible, it is preferable that the fence be equipped with a drainage hole. Since the present invention is constructed as described above, it has the following features. Since anchor pins are not required, construction efficiency is extremely good,
It is possible to significantly reduce the total cost. Since the installation of vertical beams and fences is very easy and flexible, the cost can be reduced in this respect as well. Since each member is lightweight, construction efficiency is good. Since the fence plate can be made of direct material, it has good productivity and is inexpensive.
The range of material selection is also large. Further, since it is a straight material, the length of the fence plate can be easily changed. Since the fence plate is a straight material and does not require secondary bending, the cross section of the fence plate can be selected relatively freely. If the section is corrugated or C-shaped so as to increase the section modulus, it is possible to form a lightweight and high bending strength. R slope can be easily constructed by adjusting the length of the shelf and changing the angle between the vertical beam and the shelf. As shown in the example, by using two connecting pieces and inserting the ends of the fence plate or engaging them, the fence plate can be fixed to the connecting bracket without bolts, nuts, or locking pins. The workability is very good. Since the fences are erected horizontally on the slope, the effect of supporting the soil is great. If a vertical beam with water permeability is used, the vertical beam can also be used as a drainage groove on the slope.

[Brief Description of Drawings] [FIGS. 1 and 5] FIG. 1 is an explanatory view showing a method of constructing a forbidden fence. 2, FIG. 6, FIG. 8, FIG. 12, FIG. 14, FIG. 16, and FIG.
FIG. 23 is a perspective view of a connecting fitting. FIG. 3, FIG. 7, FIG. 9, and FIG. 13 are perspective views of a vertical beam. 4 and 10 and 15 are perspective views of the fence plate. FIG. 11 is an enlarged plan view showing a method of connecting the connecting fitting and the fence plate. FIG. 17, FIG. 24, and FIG. 25 are vertical cross-sectional explanatory views showing a method of connecting the connecting fitting and the vertical beam main body. 18 and 19 are perspective explanatory views showing a method for connecting the connecting fitting and the vertical beam main body. 20 and 21 are longitudinal cross-sectional explanatory views showing a method of connecting the connecting fitting and the fence plate.

Claims (1)

What is claimed is: 1. A plurality of vertical beams are erected vertically on a slope at predetermined intervals, and then, between adjacent vertical beams and vertical beams, at predetermined intervals in the transverse direction, A method of constructing a law fence, which is characterized by erection of strip fence boards. Prior to standing for 2 longitudinal beams, the longitudinal beams were characterized by attaching a plurality of connector, the first term claims
How to build the described fence. The three vertical beams are made of steel pipes that are sequentially connected using a fitting joint .
The method of constructing a fence as described in paragraph 2 . The 4 vertical beams are characterized by being made of a material that can absorb water from the surroundings and that has a drainage groove that communicates vertically inside.
A method for constructing a law fence according to any one of claims 1, 2, and 3 . In the slope with 5 curved surfaces, the distance between two adjacent vertical beams is changed between the upper end and the lower end, and the length of the fence plate attached between the vertical beams is changed. Patent contract
The method of constructing a law fence according to any one of the first, second, third, and fourth ranges of the request .