JP3497146B2 - Slope structure of reinforced soil structure - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to constructing a reinforced earth structure having a predetermined height by stacking up soil layers in a plurality of layers in the vertical direction, so that the slope of the reinforced earth structure is formed on the slope of the support frame. The present invention relates to a slope structure of a reinforced earth structure which is formed by a wall member attached to.

[0002]

2. Description of the Related Art Conventionally, in order to form a slope of a reinforced earth structure, a plurality of rising portions, a bottom portion extending rearward from a lower end of the rising portions, and a bottom portion are welded to connect the bottom portions. A metal support frame including a connecting portion provided is used. Then, a plurality of wall surface members having through holes provided at predetermined positions in the longitudinal direction are fitted into the rising portions of the support frame with the through holes to form slopes of the reinforced earth structure.

However, in the above-mentioned supporting frame, since the connecting portion is attached to the bottom portion by welding, there is a problem that it takes time to manufacture the supporting frame.
Two parallel rising parts formed by bending one metal rod, two parallel bottom parts extending rearward from the lower ends of the rising parts, and a connecting part connecting between the rear end parts of the two bottom parts are integrated. A metal support frame formed in the above has been proposed.

A support frame having such a rising portion, a bottom portion, and a connecting portion is integrally formed, and a plurality of wall members each having a through hole at a predetermined position in the longitudinal direction are fitted into the rising portion of the supporting frame with the through holes. , When forming the slope of the reinforced earth structure, in order to prevent deformation of the rising part due to earth pressure from the inside of the wall member attached to the rising part, the slope between the upper end of each rising part and the connecting part is diagonal. It is common to connect with a connecting member of
There is a problem that the connecting portion between the connecting portion and the connecting member is located at both ends of the connecting portion, and the connecting member moves from both ends of the connecting portion to the rear end side of the bottom due to external pressure or the like and the effect of the connecting member is not exhibited. .

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to solve such a problem, and an object thereof is to prevent the connecting member from moving from both ends of the connecting portion to the rear end side of the bottom portion. It is a thing.

[0006]

In order to solve this problem, the invention according to claim 1 of the present invention is a reinforcement constructed by stacking a plurality of embankment layers in a vertical direction so as to have a predetermined height. Two parallel rising parts at the front end so as to form an angle substantially equal to the predetermined slope of the earth structure, two bottom parts extending rearward from the lower ends of these rising parts, and the rear part of these two bottom parts. A metal support frame integrally formed with a connecting portion that connects the end portions is provided, and a plurality of wall surface members provided with through holes at predetermined positions in the longitudinal direction so as to be fitted into the rising portions of the support frame are provided. However, the support frame is formed such that the two bottom portions are spaced apart from each other toward the rear end portion, and an oblique connecting member is provided between the upper end of each rising portion into which the wall surface member is fitted and the connecting portion. connecting with, said lead Position of the coupling member to be coupled to
Is separated from the end of the connecting part, which is the connecting part with the bottom part.
The gist is that the embankment layer is provided inside the wall member located at the position and supported by the rising portion. Further, the invention according to claim 2 of the present invention is such that an angle substantially equal to a predetermined slope of a reinforced soil structure constructed at a predetermined height is provided by stacking up a plurality of layers in the vertical direction. A metal part integrally formed with two parallel rising parts at the front end, two bottom parts extending rearward from the lower ends of the rising parts, and a connecting part connecting between the rear end parts of the two bottom parts. And a plurality of wall members in which U-shaped metal fittings are driven at predetermined positions in the longitudinal direction, and are fitted into the rising portion of the support frame in the gap between the U-shaped metal fittings and the wall member. Configured to
The support frame is formed such that the two bottom parts are spaced apart toward the rear end part, and the upper end of each rising part into which the wall surface member is fitted and the connecting part are connected by an oblique connecting member. , A connection connected to the connection portion
The position of the connecting member is the end of the connecting portion that is a continuous portion with the bottom portion.
The gist is that the embankment layer is provided inside the wall surface member that is located at a position distant from the portion and is supported by the rising portion. Further described in claim 3 of the present invention
The invention of claim is supported in the invention of claim 1 or 2.
The surface of the frame has innumerable irregularities formed in the length direction.
That is the main point.

With this structure, the two bottom portions extending rearward from the lower ends of the two parallel rising portions of the support frame are formed so as to be spaced apart from each other toward the rear end portion.
Since the connection part that connects the rear end parts of the bottom part of the book is integrally formed, when the upper end of the rising part and the connection part are connected by the oblique connection member, they are connected to the connection part. The position of the connecting member is located at a position away from the end of the connecting portion that is a continuous portion with the bottom portion, and it is possible to prevent the connecting member from moving from both ends of the connecting portion to the rear end side of the bottom portion. Further, since the support frame has innumerable uneven portions formed on the surface in the length direction, even if the support frame is formed so that the two bottom portions are parallel to each other, it is not When the connecting portion that connects the rear end portions of the bottom portion of the book is connected with an oblique connecting member, the connecting member engages the uneven portion with respect to the connecting portion, and as a result, the positional displacement of the connecting member with respect to the connecting portion is prevented. Can be prevented.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. First, the first embodiment shown in FIGS. 1 to 6 will be described. Reference numeral 1 is a reinforced earth structure provided at a predetermined height by stacking the embankment layers 2 in a plurality of stages in the vertical direction. The slope of the reinforced earth structure 1 has two parallel rising portions 3 and 3 at the front end so as to form an angle substantially equal to a predetermined slope, and two extending rearward from the lower ends of the rising portions 3 and 3. Bottoms 4 and 4,
A metal support frame 6 integrally formed with a connecting portion 5 that connects between the rear end portions of the two bottom portions 4 and 4, and a longitudinal direction so as to be fitted into the rising portions 3 and 3 of the support frame 6. It is formed by a plurality of wall surface members 7 having through holes 7a, 7a at predetermined positions near both ends.

By the way, the metal support frame 6 is formed by bending a solid bar material or a pipe material so that the two bottom portions 4 and 4 are widened toward the rear end portion.

Wall surfaces supported by the rising portions 3 and 3 by connecting the upper ends of the rising portions 3 and 3 in which the plurality of wall surface members 7 are fitted and the connecting portion 5 with an oblique connecting member 8. The fill layer 2 is provided inside the member 7. The support frame 6 has two bottom parts 4, 4
It is previously fixed to the ground by a plurality of anchor piles 9 at the position of the connecting portion 5 connecting the rear end portions. Specifically, the upper end bent portion 9a of the anchor pile 9 presses the connecting portion 5 from above, and the support frame 6 is fixed to the ground. Further, the connecting member 8 is a connecting member 10 made of round bar steel having a bent portion 10a at one end so as to be locked to the upper end of the rising portion 3 and a male screw portion 10b formed at the other end.
And a connecting member 11 made of round steel bar having a bent portion 11a at one end so as to be locked to the connecting portion 5 and a male screw portion 11b formed at the other end, and the connecting member 10 and the male screw portion of the connecting member 11. The turnbuckle 12 is formed by screwing the male screw portion 10b and the male screw portion 11b into the female screw portions 12a and 12b. The length of the connecting member 8 can be adjusted by rotating the turnbuckle 12 in the forward and reverse directions. ing.

By the way, as the wall member 7, in the present embodiment, vertically parallel surfaces 7b and 7c are formed along the length direction, and through holes 7a and 7a opened at the upper and lower surfaces 7b and 7c. Natural thinned wood provided with is used, but the shape of the wall member 7 does not necessarily have to have surfaces 7b and 7c parallel to each other vertically. Is also good. Further, instead of the wall member 7 made of the thinned wood, a wall member made of an artificial synthetic resin or the like may be used.

Next, the slope forming procedure will be described with reference to FIGS.
An explanation will be given based on (h). First, as shown in FIG. 5A, the support frame 6 is set on the slope forming portion, and
As shown in (b) and (c), a plurality of wall surface members 7 are fitted into the rising portions 3 and 3. Although not shown in the drawing, the support frames 6 are arranged at appropriate intervals in the lateral direction of the slope forming portion. Next, the embankment layer is provided inside the wall member 7, but before that, as shown in FIG. 5D, the embankment layer is made of a polymer material such as polyethylene and penetrates in the thickness direction below the embankment layer forming portion. A net-shaped or sheet-shaped reinforcing material 13 having holes to be laid is laid in advance. The reinforcing member 13 initially projects toward the front of the wall member 7 so that one end 13a covers the wall member 7 from above, and in this state, as shown in FIG. An oblique connecting member 8 is used to connect between the connecting portion 5 and
In this state, as shown in FIG. 5 (f), the embankment layer 2a having a height approximately half the height of the wall surface member 7 is formed inside the wall member 7, and as shown in FIG. 7
At a position close to, the embankment layer 2b having the same height as the wall member 7 is formed. Next, as shown in FIG. 5 (h), the embankment layer 2b is covered with the one end portion 13a of the reinforcing member 13, and in this state, the wall member is placed on the embankment layer 2a having a height approximately half the height of the wall member 7. A fill layer 2c is formed to a height of 7. By repeating such an operation, a slope having a predetermined height is formed stepwise as shown in FIG.

By the way, the upper end of the rising portions 3 and 3 and the connecting portion 5 are connected by an oblique connecting member 8 during the formation of such a slope, and the two connecting members used in the present embodiment are used. Since the bottom portions 4 and 4 of the connecting member 8 are formed so as to widen toward the rear end portion, the bent portion 10a of the connecting member 8 is locked to the upper end of the rising portion 3 and the bent portion 11a is connected to the connecting portion 5. When the turnbuckle 12 is tightened so that the connecting member 8 is shortened in the locked state, the position of the connecting member 8 connected to the connecting portion 5 is the connecting portion 5 which is a continuous portion with the bottom portion 4. It is possible to prevent the bent portion 11a from moving from both ends of the connecting portion 5 to the rear end side of the bottom portion 4 at a position apart from the end portion of the bottom portion 4.

Next, the second embodiment shown in FIGS. 7 and 8 will be described. In the first embodiment, the wall member 7 is provided with through holes 7a, 7a, and the rising portion 3 of the support frame 6 is formed. , 3, but the second
As in the embodiment of the present invention, the U-shaped metal fittings 14 are driven into predetermined positions near both ends in the longitudinal direction of the wall member 7, and the support frame 6 rises in the gap between the U-shaped metal fittings 14 and the wall member 7. You may comprise so that it may fit in the part 3.

Next, the third embodiment shown in FIGS. 9 and 10 will be described. The material of the support frame 6 used in the first embodiment and the second embodiment shown in the drawings will be described. Although the surface of a certain solid bar or pipe is not formed with irregularities, as in the third embodiment, as the material of the support frame 6, innumerable irregularities 15 are formed on the surface in the longitudinal direction. It is also possible to use solid bar material or pipe material. Since the countless uneven portions 15 are formed on the surface of the support frame 6 in the lengthwise direction as described above, the bent portions 11 a of the connecting member 8 are locked to the uneven portions 15 of the connecting portion 5. By the way, in the third embodiment, the convex portions and the concave portions are alternately formed in the length direction of the support frame 6, but the convex and concave portions may be formed spirally or randomly. In addition, in the third embodiment, the support frame 6 having the above-mentioned 2
The bottoms 4 and 4 of the book are formed so that the space is widened toward the rear end, but since the connecting part 5 has the uneven portion 15, the two bottoms are formed to be parallel to each other. May be.

[0016]

As described above, according to the present invention, the two bottom portions extending rearward from the lower ends of the two parallel rising portions of the support frame are formed so as to be spaced apart from each other toward the rear end portion. Since the connecting portion that connects the rear end portions of the two bottom portions is integrally formed, when the upper end of the rising portion and the connecting portion are connected by an oblique connecting member, the connecting portion is connected to the connecting portion. The position of the connecting member is located away from the end of the connecting part that is a continuous part with the bottom part, and it is possible to prevent the connecting member from moving from both ends of the connecting part to the rear end side of the bottom part. . Further, since the support frame has innumerable uneven portions formed on the surface in the length direction, even if the support frame is formed so that the two bottom portions are parallel to each other, it is not When the connecting portion that connects the rear end portions of the bottom portion of the book is connected with an oblique connecting member, the connecting member engages the uneven portion with respect to the connecting portion, and as a result, the positional displacement of the connecting member with respect to the connecting portion is prevented. Can be prevented.

[Brief description of drawings]

FIG. 1 is a perspective view showing a relationship between a metal support frame and a wall member according to a first embodiment of the present invention.

FIG. 2 is a plan view of the metal support frame.

FIG. 3 is a perspective view of the wall surface member.

FIG. 4 is a side view showing the relationship between the metal support frame and the wall member.

5 (a) to (h) are explanatory views showing a slope forming order of the reinforced soil structure.

FIG. 6 is a schematic sectional view of a slope formed by repeating the same slope forming operation.

FIG. 7 is a perspective view showing a relationship between a metal support frame and a wall member according to the second embodiment of the present invention.

FIG. 8 is a perspective view of the wall surface member.

FIG. 9 is a perspective view showing a relationship between a metal support frame and a wall surface member according to the third embodiment of the present invention.

FIG. 10 is an enlarged perspective view of the relevant part.

[Explanation of symbols]

1 Reinforced soil structure 2 embankment layers 2a, 2b, 2c Embankment layer 3 rising part 4 bottom 5 connection 6 Support frame 7 Wall member 7a through hole 7b, 7c faces 8 connecting members 9 anchor pile 10 Connecting material 10a bent part 10b Male screw part 11 Connecting material 11a Bending part 11b Male thread 12 turnbuckles 12a, 12b Female thread part 13 Reinforcement material 14 metal fittings 15 uneven part

Front page continued (58) Fields surveyed (Int.Cl. ⁷ , DB name) E02D 17/18 E02D 17/20 103 E02D 29/02

Claims (3)

(57) [Claims] 1. Two parallels at the front end are formed so as to vertically pile up a plurality of embankment layers and form an angle substantially equal to a predetermined slope of a reinforced earth structure constructed at a predetermined height. A support frame made of metal integrally formed with a rising part, two bottom parts extending rearward from the lower end of the rising part, and a connecting part connecting between the rear end parts of the two bottom parts. The support frame has a plurality of wall members having through holes formed at predetermined positions in the longitudinal direction so as to be fitted into the rising portions of the frame, and the support frame is configured such that the two bottom portions are widened toward the rear end portion. The connecting portion is formed by connecting the upper end of each rising portion into which the wall surface member is fitted and the connecting portion with each other, and connecting the connecting portion to the connecting portion.
The position of the connecting member connected to each other is the connecting portion with the bottom portion.
The slope structure of the reinforced earth structure is characterized in that the embankment layer is provided inside the wall member supported by the rising portion at a position away from the end of the connecting portion . 2. Two parallels at the front end are formed so as to vertically pile up a plurality of embankment layers and are formed at an angle substantially equal to a predetermined slope of a reinforced earth structure constructed at a predetermined height. A metal support frame integrally formed with a rising part, two bottom parts extending rearward from the lower end of the rising part, and a connecting part connecting between the rear end parts of the two bottom parts. Has a plurality of wall surface members in which U-shaped metal fittings are driven at predetermined positions, and is configured to be fitted into the rising portion of the support frame in the gap between the U-shaped metal fittings and the wall surface member. frame is formed as the bottom of the two spreads the spacing toward the rear end portion, connects between the upper end and the connecting portion of the rising portion where the wall member is fitted in an oblique coupling member, the In the connection
The position of the connecting member connected to each other is the connecting portion with the bottom portion.
The slope structure of the reinforced earth structure is characterized in that the embankment layer is provided inside the wall member supported by the rising portion at a position away from the end of the connecting portion . 3. The support frame has innumerable irregularities on its surface.
It is formed in the depth direction.
Is the slope structure of the reinforced soil structure described in 2 .