JPH0437968Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a support frame for log piling earth retaining work, which is suitably used for earth retaining work using thinned wood.

[Prior Art] In recent years, with the increase in land development, the demand for earth retaining construction has rapidly increased. Conventionally, gabions have been generally used for such earth retaining work, and the gabions were installed by filling them with chestnut stones, gravel, earth and sand, etc. It has become extremely expensive and difficult to obtain. For this reason, there are an increasing number of cases in which earth and sand from the site are used as is, but simply filling the gabions with earth and sand causes the earth and sand to flow out rapidly, making it impossible to achieve an effective earth retention effect.

In addition, in recent years, there has been a strong demand for the effective use of thinned wood for forest conservation and forestry promotion in the above-mentioned earth retaining works, etc., and in addition, when carrying out forest road projects, mountain conservation projects, general roads and land development, etc. However, there is a need to use organic materials such as the thinned wood mentioned above to promote greening and create a vibrant forest.

On the other hand, as an earth retaining method that can simultaneously make effective use of thinned wood and prevent earth and sand from flowing out, for example, as shown in Fig. A crossbar 2 facing in the width direction is arranged, and restraints 3 and crossbars 4 intersecting with the crossbar 2 are stacked alternately on top of the crossbar 2, and these restraints 3 and crossbars 4 are connected to each other by metal fittings 5. There is a log piling earth retaining structure in which the logs are fixed and the gaps are filled with earth, sand, gravel, etc., and as shown in Figure 6, a plurality of horizontal logs 8 are installed on the backs of piles 7 driven at regular intervals using iron wire. Many earth retaining methods using thinned wood have been implemented, such as log fencing, in which horizontal logs are piled up by tying them together with ropes, etc., and the backs of the horizontal logs are filled with earth and sand.

However, with this earth retaining method that uses only thinned wood, it is difficult to create sufficient topsoil and vegetation because the thinned wood rots quickly, taking several years. There was a risk of a disaster.

As a result of intensive research, we have found that by combining thinned logs with a support frame made of metal wire, it is possible to reliably and stably support earth, sand, gravel, etc., even when used as filler. I can,
In addition, we have developed an earth retaining fence that does not immediately lose its earth retaining effect even when the rods rot, and can maintain excellent earth retaining function over a long period of time (Utility Application No. 1989-93089).

In this earth retaining fence, the support frame is formed of a plurality of substantially triangular bone frames and a plurality of horizontal bone lines integrally extending horizontally on the front sides of these bone frames, and these horizontal bone lines and Logs are piled up along the mesh surface formed by the front edge of the frame, but in this case, logs that are long enough to span multiple frame frames are often used, so it is difficult to support the logs. When inserting the bone into the frame, the bone frame may get in the way and the work may not proceed smoothly.

[Problems to be Solved by the Invention] An object of the present invention is to configure the support frame of the above-mentioned improved earth retaining fence so that logs can be piled up easily and smoothly.

[Means for Solving the Problems] In order to solve the above problems, the present invention provides a plurality of bone frames located at predetermined intervals, and a plurality of bone frames placed horizontally at predetermined intervals on the front sides of these bone frames. lateral bone lines, and in which logs are piled up along the inner surface of a front mesh consisting of these lateral bone lines and the front edge of the bone frame, The feature is that the upper end can be opened and closed for stacking logs.

[Function] A support frame is installed at a predetermined location, and logs are inserted into the support frame and piled up along the inner surface of the front mesh. At this time, the upper end of the frame is opened and the logs are inserted through the open part. By inserting the log, the log can be easily and smoothly inserted into the support frame.

[Example] Hereinafter, an example of the present invention will be described in detail based on the drawings.

As can be seen from the overall perspective view shown in Fig. 1 and the sectional view of the used state shown in Figs.
1, logs 12 for earth retention stacked horizontally inside the front surface of the support frame 11, and logs 13 for fixing arranged at the rear of the support frame 11.

As shown in FIG. 4, the support frame 11 includes a front mesh 15, an intermediate main frame bone line 16, an intermediate open frame bone line 17, an end vertical bone line 18, an end main frame bone line 19, End open frame bone line 20, upper and lower connecting horizontal bone lines 21 to 2
3, and an auxiliary bone line 24 for supporting the log.

The front mesh 15 is made by welding together a plurality of horizontal bone lines 26 arranged at predetermined intervals and a vertical bone line 27 that constitutes the front side of the bone frame 25 (see Fig. 1). An installation part 28 for horizontally installing the earth retaining log is formed by curving the lower end part backward into an arc shape, and each transverse bone line 26
Connecting rings 26a, 26a and 27a, 27b are formed at both ends of the vertical bone line 27, respectively. The installation portion 28 is formed so that it does not bulge out below the bottom of the intermediate main frame bone line 16, which will be described later, so that a groove corresponding to the installation portion 28 is formed in the ground. This eliminates the need for digging and facilitates installation of the support frame 11. In addition, when welding the horizontal bone line 26 and the vertical bone line 27, a depression may be formed at the intersection thereof, into which at least one bone line fits into the other bone line.

Moreover, the intermediate main frame bone line 16 is approximately L as a whole.
It is formed into a letter shape, and has connecting rings 16 at both ends.
a, 16b, and a ring 16 that defines a fixing log installation part 29 at a position near the rear of the bottom side.
c, and on the other hand, the middle open frame bone line 17
is formed in an arc shape, and has connecting rings 17a and 17b at both ends thereof, respectively. As shown in FIG. 1, these frame bone lines 16 and 17 are integrally connected to the longitudinal bone lines 27 in the front mesh 15, and cooperate with the longitudinal bone lines 27 to extend the front and rear ends of the bottom. A substantially triangular frame 25 is provided with installation parts 28 and 29 for logs.
When stacking, as shown by the chain line in Figure 2,
The intermediate open frame bone line 17 is separated from the intermediate main frame bone line 16 and opened, and the log 1 is inserted through the opening thereof.
2 are inserted and stacked, they are connected to the intermediate main frame bone line 16 by a connecting transverse bone line 23. Note that these frame lines 16 and 17 are
Any shape other than the above may be used as long as it can cooperate with the vertical bone line 27 to form a closed bone frame and an opening can be formed at the upper end of the frame when stacking logs. Good too.

Further, the end vertical bone line 18 is inserted through the ring 26a at the end of each horizontal bone line 26 in the front mesh 15,
The ends of the front mesh 15 serve as vertical bone lines, and when connecting the plurality of support frames 11, 11, the horizontal bone lines 26, 26 of these support frames are connected to each other (see Fig. 1). It also serves as a connecting bone line, and a connecting ring 18a is formed at the upper end of the end vertical bone line 18, and a connecting ring 18a is formed at the lower end of the end vertical bone line 18, and the lower end extends straight downward. Thus, legs 30 to be buried in the soil are formed. This leg 30
When constructing the earth retaining fence (filling with earth and stones), it stabilizes the position of the support frame 11 to facilitate the construction, and after the earth retaining fence is installed, it prevents the fence from sliding and improves the earth retaining effect. increase.

Further, the end main frame bone line 19, like the intermediate main frame bone line 16, is formed into a generally L-shape as a whole, and has a connecting ring 19a at the upper end, and a fixing log 13 at the bottom. The ring 19c that partitions the installation part 29 of the ring 1 and the lower connecting transverse bone line 22 pass through
9b, but unlike the intermediate main frame bone line 16, the tip of the bottom extends straight forward as it is, and the end longitudinal bone line 18 is inserted into the tip of the connecting ring. 19d is formed. on the other hand,
The open-end frame bone line 20 is formed in an arc shape and has connecting rings 20a and 20b at both ends thereof, respectively. Therefore, these frame lines 19 and 20 are
By being integrally connected to the end vertical bone line 18, a triangular bone frame 25 is constructed at the end of the support frame 11 in cooperation with the vertical bone line 18, but the log 12 is When stacking logs 12, the open end frame bone line 20 is separated from the end main frame bone line 19 and opened, as shown by the chain line in FIG. The point that it is connected to the end main frame bone line 19 by the line 23 and the point that these frame bone lines 19 and 20 may have a shape other than the above-mentioned shape is that the middle main frame bone line 16 and the middle open frame bone line 17.

The upper and lower connecting horizontal bone lines 21 to 23 are connected to the front mesh 15
The vertical bone line 27 is connected to the intermediate main frame bone line 16 and the intermediate open frame bone line 17, and the end vertical bone line 18 is connected to the end main frame bone line 19 and the end open frame bone line 20, respectively. , the connecting horizontal bone line 21 includes a ring 27a at the top of the vertical bone line 27, a ring 17a at the tip of the middle open frame bone line 17, and a ring 18 at the top of the end vertical bone line 18.
a and the ring 20a at the tip of the open-end frame bone line 20, and the lower connecting horizontal bone line 22 is inserted into the longitudinal bone line 2.
7, a ring 16b at the lower end of the intermediate main frame bone line 16, and a ring 19b at the end main frame bone line 19.
Furthermore, the connecting transverse bone line 23 is inserted between the ring 16a at the upper end of the intermediate main frame bone line 16, the ring 17b at the rear end of the intermediate open frame bone line 17, and the end main frame bone line 1.
9 and a ring 20b at the rear end of the open-end frame bone line 20, respectively. The ends of the connecting transverse bone lines inserted through these rings may be bent as appropriate and locked to the bone frame 25 at the end of the support frame 11.

Furthermore, the auxiliary bone line 24 for supporting logs is used to hold the logs 12 for earth retention so that they do not separate from the inclined front net 15 when the logs 12 for earth retention are piled up and earth and stones are filled behind them. , is provided with a connecting ring 24a at its lower end, and is attached to the support frame 11 at all or part of the bone frame 25 by passing the connecting horizontal bone line 22 through the ring 24a. . The upper end of the auxiliary bone line 24 is connected to the corresponding main frame bone lines 16, 19 and open frame bone lines 17, 2.
Although the rings 16a, 19a and 17b, 20b of 0 are respectively inserted and locked, they may be locked by other appropriate means.

In the earth retaining fence having the above configuration, the support frame 11 is the fourth
After being disassembled into the parts shown in the figure and transported to the site, they are assembled as shown in Figure 1.
Logs are piled up and filled with earth and stones, and the logs are stacked in one or more layers at a predetermined location.

When stacking the logs 12, as shown by chain lines in FIGS. 2 and 3, the middle open frame bone line 17 and the end open frame bone line 20 of each frame 25 are opened, and After the logs 12 are inserted into the support frame 11 through the opening and piled up, these open frame bone lines are connected to the intermediate main frame bone line 16 by the connecting horizontal bone line 23.
and connected to the end main frame bone line 19. This facilitates the insertion of the log into the support frame 11 regardless of the presence of the bone frame 25.

In the above embodiment, the upper ends of all the frame frames 25 are configured to be open, but depending on the length of the logs used, for example, every other or every other log may be open. It is also possible to configure only the bone frame 25 of the part to be openable.

Further, a wire rope is installed between an appropriate position of the vertical bone line 27 in the support frame 11 and the intermediate main frame bone line 16, and between an appropriate position of the end vertical bone line 18 and the end main frame bone line 19. Furthermore, each time one or more logs 12 are piled up between the auxiliary bone line 24 and the longitudinal bone line 27 and the end vertical bone line 18, A reinforcing wire can also be strung.

In the earth retaining fence thus installed, the logs gradually rot due to long-term use, but the support frame 1
Since the front surface of the log 1 is a mesh surface, the rotten log 12 does not immediately collapse and fall off, and is held in place by the mesh surface. Therefore, the earth retaining function will be maintained over a long period of time, during which time sufficient topsoil construction and vegetation will progress.

Note that the most suitable inclination angle of the front mesh 15 of the support frame 11 is generally about 73 degrees, and
Logs 12 and 13 usually have a diameter of about 10 mm at the end.
Logs of about cm are suitable, but these front nets are 15 cm long.
The inclination angle, the thickness of the log, the cross-sectional shape, etc. can be determined as appropriate depending on the installation conditions of the earth retaining fence, such as the size of the earth retaining fence and the soil quality of the site.

[Effects of the invention] According to the invention having the above configuration, the upper end portion of at least a part of the bone frame can be opened and closed, so that logs can be inserted and stacked in the support frame with the bone frame open. By closing the frame after that, the work of stacking logs can be performed very easily and smoothly regardless of the presence of the frame 25.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the earth retaining fence according to the present invention, Figures 2 and 3 are sectional views at different positions, Figure 4 is an exploded perspective view of the support frame, and Figures 5 and 6 are conventional FIG. 3 is an example cross-sectional view. 11... Support frame, 12, 13... Log, 15...
...frontal mesh, 25...bone frame, 26...lateral bone line.

Claims (1)

[Scope of utility model registration request] It includes a plurality of bone frames located at predetermined intervals, and a plurality of horizontal bone lines extending horizontally at predetermined intervals on the front sides of these bone frames, and these horizontal bone lines are connected to the front side of the bone frame. Logs are piled up along the inner surface of a front net consisting of a log pile, characterized in that the upper end portion of at least a part of the frame is openable and closable for inserting logs. Industrial support frame.