JPH0355635Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a slope protection circular framework structure installed to prevent slope topsoil from flowing out or collapsing.

(Prior art) In the conventional ring frame structure for slope protection, a large number of arc-shaped concrete blocks are installed on the slope to form a continuous ring, and each arc-shaped block has a connecting link that protrudes from both ends. They are interconnected by tensioning reinforcing bars.

(Problems to be Solved by the Invention) However, in this conventional structure, the labor cost increases because there are many places where the reinforcing bars are tied, making it difficult to reduce the construction unit cost. Furthermore, even when the arc-shaped blocks are connected to each other, they are simply placed on the slope, so the connection between the circular frame structure composed of the arc-shaped blocks and the slope is Since it only depends on the weight of the arc-shaped block and the frictional force associated with the weight, it has been difficult to apply it to slopes with large inclination angles.

Therefore, the purpose of this invention is to create a slope protection device that is easy to install, reduces labor costs, and can be applied to slopes with relatively large slope angles without any problems because it increases the bonding force with the slope. The purpose is to provide an annular frame structure.

(Means for Solving the Problems) Hereinafter, using reference numerals in the attached drawings, the annular frame structure for slope protection of the present invention has an outer peripheral surface
A plurality of annular frame bodies 1 are arranged in parallel on a slope 2 with their a substantially in contact with each other, three connecting members 3 which are fitted across the three adjacent annular frame bodies 1, and three connections. It consists of a pile 5 driven into the slope 2 through a through hole 4 in the material 3.

(Embodiment) In the first embodiment shown in FIGS. 1 to 3, the three connecting members 3 abut against the front surface 1b of the annular frame body 1.
On the back side of the annular frame structure, three claw plate parts 3a, 3b, and 3c inserted into the slope 2 are provided at equal intervals in order to increase the prevention force against slipping along the slope 2 of the annular frame structure. Each claw plate portion is fitted inside one annular frame main body 1. The through hole 4 is formed in the center of the three connecting members 3, and the pile 5 driven into the slope 2 from this hole is placed in the front of the three connecting members 3 in order to prevent the annular frame structure from floating up from the slope. Enlarged head 5 that abuts on
It has a. The use of the pile 5 with the enlarged head 5a increases the resistance to frost heaving pressure during the cold season.

In this embodiment, the claw plate portions 3a, 3b, 3
The length of c is relatively short, and the tip of each claw plate has slope 2.
However, if each claw plate is made longer and the insertion length into the slope 2 is set deeper, it will not only be able to prevent the annular frame structure from sliding along the slope. Due to the frictional force acting between the claw plate portion and the slope ground, the force to prevent floating from the slope can be further strengthened.

In addition, in this embodiment, the three connecting members 3 are attached to all the joint parts of the annular frame main body 1, and all the three connecting members 3
However, depending on the inclination angle of the slope 2, the installation of the three-connecting members 3 may be omitted for some joints, and the piles 5 may be inserted into some of the three-connecting members 3. You can also leave it without. Further, if only to prevent the annular frame structure from sliding along a slope, a stake without an enlarged head can also be used.

In the second embodiment shown in FIGS. 4 to 6, all of the joints of the annular frame main body 1 are
The piles 5 are not used, and two connecting members 6, which are fitted across only two adjacent annular frame bodies 1, are used at some joint locations. The two connecting members 6
Two claw plate parts 6a and 6b, which are inserted into the slope 2, are provided on the back surface of the frame 2, and each claw plate part is inserted into the inner side of one annular frame main body 1, respectively. The lengths of the claw plate portions 6a, 6b of the two connecting members 6 can also be set long for the same purpose as the claw plate portions of the connecting seat plate 3.

As a modification of the present invention, two connecting members 6 are used at all joints of the annular frame body 1, and no stakes 5 are used at all; three connecting members are used at all joints of the annular frame body 1. 3 and do not use the stakes 5 at all; do not use the three connecting members 3 and the two connecting members 6 at the joint of the annular frame body 1 at all, and do not use the enlarged head as shown in Fig. 7. or driving a stake 5 with an enlarged head 5a and bringing the head 5a into contact with the front surface 1b of the annular frame main body 1. It is also possible to combine the above embodiments and modifications thereof.

(Effects of the invention) As described above, in the slope protection annular frame structure of the present invention, a plurality of annular frame bodies 1 are arranged in parallel on the slope 2 with their respective outer circumferential surfaces 1a substantially touching each other, and adjacent The three connecting members 3 are fitted across the three annular frame bodies 1, and the stakes 5 are driven into the slope 2 through the through holes 4 of some or all of the three connecting members 3. 1. The mutual connection and the connection between the annular frame body 1 and the slope 2 are firmly performed,
Since the ability to prevent the annular frame structure from sliding along the slope and rising from the slope is enhanced, it has great practical value as a slope protection structure.

In addition, the annular frame body 1, which is the main component of the annular frame structure, is composed of a complete torus with no seams, notches, recesses, etc., and these are stacked in series on a slope so that they are in close contact with each other. , a slope protection structure with good load distribution and stable strength can be obtained.

Furthermore, since the annular frame body 1 can be rolled and transported, the unit weight can be increased to increase the supporting capacity of each piece of earth pressure, which allows the slope angle of the slope to be set large. It is also possible to increase the resistance to frost heave pressure on slopes in cold regions.

Furthermore, with the present invention, there is no need to tie up the connecting reinforcing bars at multiple locations, and the annular frame body 1
Since the annular frame structure can be assembled by the extremely simple operations of installing the three connecting members 3, fitting the three connecting members 3, and driving the piles 5, the labor burden can be considerably reduced, and construction costs can be reduced.

[Brief explanation of the drawing]

1 to 3 show an annular frame structure for slope protection according to a first embodiment of the present invention, FIG. 1 is a front view from diagonally above showing the installed state of the annular frame structure, and FIG. FIG. 2 is a perspective view of the three connecting members and piles used in the annular frame structure, and FIG. 3 is a sectional view taken along the line A--A in FIG. 1. 4 to 6 show an annular frame structure for slope protection according to a second embodiment of the present invention, FIG. 4 is a front view from diagonally above showing the installed state of the annular frame structure, and FIG. FIG. 5 is a perspective view of two connecting members additionally used in the annular frame structure, and FIG. 6 is a sectional view taken along the line B--B in FIG. 4. FIG. 7 is a front view of an annular frame structure according to a modification of the present invention. 1...The circular frame body. 2... Slope, 3... Three connecting members, 4... Through hole, 5... Pile, 6... Two connecting members, 7
...Pile.

Claims (1)

[Scope of utility model registration request] A plurality of annular frame bodies 1 are arranged side by side on a slope 2 with their outer circumferential surfaces 1a substantially in contact with each other, and three connecting members 3 are fitted across three adjacent annular frame bodies 1. An annular frame structure for slope protection consisting of piles 5 driven into the slope 2 through the through holes 4 of some or all of the three connecting members 3.