JP2007217960A - Arched slope protection frame structure construction method for stabilizing slope face and creating comfortable scenery and its arched slope protection frame structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an arched slope protection frame structure construction method for stabilizing a slope face and creating a comfortable scenery, and its arched slope protection frame structure. <P>SOLUTION: An interval holding member 6 is installed in the center of a plurality of head parts 4 by arranging a vertical beam reinforcement 2 and a horizontal beam reinforcement 3 on the slope face 1. An arched frame body 7 is fitted in a box 4, and is arranged along the vertical beam reinforcement 2, the horizontal beam reinforcement 3 and an oblique reinforcement 5. A top end part 7' of the arched frame body 7 is bound and fixed to the interval holding member 6 of a horizontal beam reinforcement upper part, and a part of right-left bending parts is bound and fixed to the oblique reinforcement 5, and a leg part 7<SB>1</SB>' of a shape keeping reinforcement 7<SB>1</SB>of the arched frame body is bound and fixed to the vertical beam reinforcement so that a belt-like wire net 7<SB>2</SB>of the arched frame body 7 does not directly contact with the vertical beam reinforcement. A vertical frame body 8 continuing with a lower part of the arched frame body 7 is installed on the horizontal beam reinforcement 3. After connecting a bottom type frame body 9 in contact to a lower part of the vertical frame body 8, this structure is finished by spraying a concrete spraying material in the vertical beam reinforcement 2 and the horizontal beam reinforcement 3. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an arch-shaped frame structure construction method and a arch-shaped frame structure construction for stable slope creation and a comfortable landscape, and is related to work safety, structural part design and construction flexibility, and simplicity. The purpose is to contribute to the society by devising the characteristics, spreading the use of construction methods, and realizing a wide comfortable environment.

  In general, to prevent weathering and collapse of slopes including concrete walls and natural slopes (hereinafter simply referred to as “slopes”), concrete is sprayed on one side, or the frame is spread in a lattice pattern to stabilize the slope. There are already many examples of construction methods for realizing the greening of the parts contained in the beam.

  The conventional method has a strong and exclusive and linear impression, and the greening is made up of herbs or simple vegetation of specific trees, which is far from natural diversity. There was a sense of incongruity and it was not a comfortable environment for residents and users.

The above-mentioned slopes play an important role in protecting the safety of roads and facilities that are closely related to people's lives. On the other hand, these slopes are the scenery of the hometown that nurtures the heart of youth, and in the tourist spots, they are in a position that constitutes an important landscape that is closely related to the scenery of sightseeing facilities and sightseeing trips. Therefore, it is necessary to enable various greening as well as safety functions, and advanced and aesthetic considerations are desired for environmental protection and landscape creation.
JP 08-151647 (Patent No. 2890101) In view of this social necessity, the present applicant developed the present application, “A method for constructing an existing concrete landscape retaining wall and an existing concrete landscape retaining wall (Patent Document 1, Patent Document 2). ) "To the world.

  The present invention makes use of the advantages of the above-mentioned Patent Documents 1 and 2 as they are, devised work safety, arch design and flexibility of construction, and ease of use, and promotes the use of construction methods, providing a wide comfortable environment. It aims to contribute to society by realizing it.

  A first aspect of the present invention is a method for constructing an arch-shaped frame structure, in which a vertical beam reinforcing bar and a horizontal beam reinforcing bar are installed on a slope to form a plurality of grids, and diagonal reinforcing bars are attached to upper corners of the grid. At the same time, a spacing member is attached to the upper center of the grid, and an arch-shaped frame consisting of a prefabricated arch-shaped reinforcing bar and a fixed strip-shaped wire mesh along the inside of the grid is fitted into the grid, and the transverse beam and the diagonal Arranged so that it is close to the reinforcing bar and the longitudinal beam reinforcing bar, the top end of the arched frame is the spacing member above the horizontal beam reinforcing bar, and part of the left and right arc of the arched frame is the diagonal reinforcing bar Attach the legs of the reinforcing bars to the vertical beam reinforcing bars with bundling members so that the strip metal mesh does not touch the vertical and horizontal beam reinforcing bars directly, and install them at the left and right sides that are continuous with the legs of the arched frame The vertical frame is in contact with the vertical beam reinforcement and the lower end of the frame After attaching the bottom frame to the horizontal beam reinforcing bar with a bundling member while holding an appropriate interval through the interval holder that bent the metal axis, spray the concrete spraying material into the vertical beam and horizontal beam reinforcement by spraying. The surface of the frame after spraying is finished smoothly.

  The second aspect of the present invention is an arch-shaped frame structure construction method for stabilizing the slope and creating a comfortable landscape according to the first aspect of the present invention. And green.

  A third aspect of the present invention is an arch-shaped frame structure for stabilizing the slope and creating a comfortable landscape, wherein a plurality of steel wires have a semicircular portion with a predetermined radius, and the legs are slightly expanded. An arch-shaped retaining bar formed in the shape of an arch, and an arch-shaped frame made by fixing a band-shaped wire mesh along the inside of the semicircular part of the reinforcing bar, is fitted into the grid formed by vertical and horizontal beam reinforcing bars. In this case, the oblique reinforcing bars that are in contact with a part of the semicircular part of the arch-shaped frame are attached to the horizontal beam reinforcing bars with binding members at the upper corners of the grid.

Since the present invention has the above-described configuration, the following effects can be obtained. That is, first, since the arch-shaped frame body is formed of a wire mesh, it is much lighter than conventional metal panels, and the installation work of reciprocating many times on the slope is safe. Secondly, the frame structure is formed by concrete spraying while the formwork body is attached to the longitudinal and transverse beam reinforcements, so that the reinforcement effect of the arch method frame is improved and the work of removing the frame becomes unnecessary. Thus, although the arch-shaped frame is reduced in weight, the danger at the time of frame removal is eliminated. Thirdly, the vertical frame body and the bottom frame body on the left and right sides of the arch frame body are each composed of a metal mesh body and are separated from each other, so that the work at the time of installation on the slope can be performed extremely safely.
Fourth, the arch-type frame body and the left and right vertical frame bodies and the bottom mold frame all have an appropriate interval without directly touching the vertical and horizontal beam reinforcing bars, so the spraying efficiency of the concrete material is good. In addition, the band metal mesh of each mold body provides good biting when the concrete material is sprayed and improves the degree of reinforcement.
Fifth, since the gap was held between the left and right vertical frame and vertical beam reinforcement and the bottom mold frame and horizontal beam reinforcement so as not to be directly touched by the original gap holder that bent the metal axis, It is easy to assemble and install vertical and horizontal beam rebars, and there is no risk of uniform filling when a concrete material is sprayed.

The best mode for carrying out the present invention is as follows.
A vertical rectangular grid is formed by installing a combination of vertical and horizontal beam reinforcing bars on the slope, and diagonal reinforcing bars are attached to the upper corners of the grid.
Next, an interval holding member is attached to the upper center of the grid, and an arch net frame processed in advance by factory production is fitted into the grid and installed so as to follow the longitudinal beam, horizontal beam, and diagonal bars. .

The top end of the arch frame is used as the spacing member for the upper horizontal beam reinforcement, part of the left and right circular arcs is used as the diagonal reinforcement, and the leg of the arch frame support is used directly by the band metal mesh of the arch frame Each of the vertical beam reinforcing bars is bound and fixed by a binding wire while not touching the vertical beam reinforcing bars.
Attach the vertical frame continuous to the lower part of the arch type frame to the horizontal beam reinforcing bar, and contact the lower part of the left and right vertical frame and connect the bottom type frame by the binding members respectively. Spraying is performed by using the spraying method inside the beam reinforcing bar and horizontal beam reinforcing bar. And the surface of the frame after spraying the concrete material is finished with a plastering tool such as a kite.
It is designed to be greened by the wall planter method, the green pocket method, etc.

Next, embodiments of the present invention will be described with reference to the drawings. Reference numeral 1 is a slope, 2 is a longitudinal beam reinforcement, 3 is a transverse beam reinforcement, and is installed on the slope in combination with the longitudinal beam reinforcement 2. The vertical and horizontal beam rebars 2 and 3 have four bars per row. Reference numeral 4 denotes a rectangular grid formed by a combination of the longitudinal beam reinforcing bar 2 and the horizontal beam reinforcing bar 3, and 5 denotes a vertical and horizontal beam reinforcing bar 2 at a binding wire 10 at both upper corners of the grid 4 in order to fix the arch form frame.・ An oblique rebar bound to 3; 6 is an L-shaped spacing member attached to the center of the cross beam rebar 3 at the top of the grid; and 7 is an arch-shaped frame that is formed into a semicircular shape with a predetermined radius (for example, about 1 m). length 3.5m were, a shape-retaining reinforcing bar ₇₁ diameter of about 9 mm, and a length 3m longitudinal depending on the installation conditions wire diameter 2 to 3 mm, made of net member 7 ₂ to about width 100 to 500 mm, the shape retention inside the rebar are welded to and along the wire mesh 7 ₂ Obigata. As the above-mentioned retained reinforcing bar, a perforated iron plate or an extended metal can be used as an alternative to a strip-shaped wire mesh. 8 a vertical frame for continuous replenishment to the left and right leg portions ₇₁ of the shape-retaining reinforcing bar ₇₁ of the arcuate ', 9 is a bottom mold frame connecting the lower end portions of the left and right vertical frame member 8. The vertical frame 8 and the bottom frame 9 are welded along the strip metal mesh 7 ₂ on the inside of the straight shape rebar 7 ₁ which allows two pieces like the arch frame 7. It is. In the figure, 10 is a binding member such as a binding wire or a known clamping tool (not shown), and 11 is a metal interposed between the longitudinal beam reinforcing bar 2 and the vertical frame 8 and between the horizontal beam reinforcing bar 3 and the bottom frame 9. It is an interval holder having a bent shaft. Configuration of the spacing retainer, as shown in FIGS. 10 and 11, by forming a rising portion 11 ₂ at the bottom tip of the L font 11 _1, and the horizontal side 11 ₃ to form a reverse L font to L font top It is integrally formed vertical side portion 11 _4. Reference numeral 12 denotes a connecting horizontal axis obtained by coupling a pair of left and right spacing holders 11 facing each other. Reference numeral 13 denotes an anchor pin that supports the spacing holder 12 via the connecting shaft 12 and is driven into the slope 1.
"Concrete construction process"

(1) The arched frame 7 is processed in advance at a manufacturing factory or the like. In processing, the leg portion 7 ₁ ′ of the shape-retaining rebar 7 ₁ for forming the arch form is formed so as to be slightly widened, and the welding with the belt-shaped wire mesh 7 ₂ and the top end portion of the shape-retaining rebar 7 ₁ Although the 5 point position are distributed to the left and right, near both ends (about 5 cm) of the strip-shaped metal mesh 7 ₂ held free without welding. This is because the installation space does not necessarily have the same width of the grid 4 and can be adjusted so that it can be stored in the grid 4 by narrowing or expanding the leg 7 ₁ ′ of the retaining bar 7 _1. Depending on what you need to keep.
(2) Survey the installation site on the slope 1, determine the required beam size, and mark M and M 'vertically and horizontally (Fig. 3).
(3) The vertical beam reinforcing bar 2 and the horizontal beam reinforcing bar 3 are installed in combination at the installation location, the anchor pin 13 is driven in, and fixed by the binding member 10 via the interval holder 11 to form the grid 4 (FIG. 4). .
(4) The upper part of the longitudinal beam reinforcing bar 2 and the lateral beam reinforcing bar 3 is bound and fixed by a binding member 10. Similarly, an L-shaped spacing member 6 is bound and attached to the central portion of the upper part of the cross beam reinforcing bar 3 by a binding member 10 (FIG. 3).
(5) (a) Fit the arched frame 7 into the grid 4. At this time, strip-shaped metal wire net 7 ₂ binding the free left and right lower end portions with intervening spacing member 6, spacing retainer 11 so as not to contact the vertical beam reinforcing bars 2 and YokoCho rebar 3 in shape retention reinforcement 7 ₁ . (b) The top end portion 7 ′ of the arch frame 7 and the spacing member 6 are bound by the binding member 10. (c) The arch-shaped frame body 7 is bound to the oblique reinforcing bars 5 with the binding members 10 at the left and right arc portions. (d) The leg portion 7 ₁ ′ of the retaining bar 7 ₁ of the arch frame 7 is bound to the longitudinal beam reinforcing bar 2 by the binding member 10. (e) a vertical frame member 8 as well as disposed on the left and right of the grid 4, is connected to the upper so as to adjoin the leg ends of the holding-type reinforcing bar ₇₁ of the arched frame. At this time, an appropriate interval is held by the interval holder 11 so that the vertical frame body and the longitudinal beam rebar 2 are not in direct contact with each other with the interval holder 11 interposed. (f) The bottom mold body 9 is fitted into the grid 4 and connected to the lower ends of the vertical frame bodies 8 on both the left and right sides, and is bound to the lower part of the horizontal beam rebar 3 by the binding member 10 via the spacing holder 11. At the same time, the interval holder 11 is interposed so that the interval between the vertical frame and the longitudinal beam reinforcing bar 2 is not directly in contact. This completes the installation of each mold body (FIGS. 4 to 7).
(6) After the installation of each formwork body 7, 8, 9, the concrete material is sprayed into the longitudinal beam reinforcement 2 and the transverse beam reinforcement 3 by the spraying method. At this time, a sheet is stretched over the square 4 so that the spray material does not scatter in the square. After the concrete material is sprayed, the part that protrudes outside from the mesh of the strip-shaped wire mesh of each formwork body 7, 8, 9 is finished with a slab etc. so that it has an arch shape without using a concrete formwork. Thus, the frame structure N can be formed (FIGS. 8 to 12). In addition, a frame structure having an arch shape is completed by finishing a brick pattern or a masonry pattern as necessary.
(7) In the legal frame mass B of the legal frame structure N, planting is carried out by planting with the wall pocket P method or the green pocket G method (FIG. 14). As the construction method of the wale pocket, for example, a rib net body is placed under the frame B and the inside of the horizontally long accommodating portion is filled with customer soil and planted (Japanese Patent No. 3703611). In addition, as a green pocket construction method, a net body is stretched on the slope in the frame B, and the customer's bag is accommodated through a box-shaped spacer inside and planted in the customer's bag. (Patent No. 3703604) There is a construction method.

It is a disassembled perspective view of the arch type frame used for arched beam structure construction concerning the present invention. It is a side view of FIG. 3 to 8 are process diagrams of construction of the arched beam structure according to the present invention, and FIG. 3 is a front view of a slope before construction. It is the front view which installed the combination of the vertical beam reinforcement and the horizontal beam reinforcement, and provided the several grid. It is the front view which attached the diagonal reinforcing bar for arch type frame body attachment to the grid. It is the enlarged front view which accommodated and installed the arch type frame body, the right-and-left vertical frame body, and the bottom mold frame in the grid. It is a perspective view of the space | interval holder of the head of an arch type frame, and a cross beam reinforcement. It is the front view which shaped concrete frame structure by spraying concrete in a longitudinal beam reinforcement and a transverse beam reinforcement. It is an expanded sectional view which follows the 9-9 line of FIG. It is an expanded sectional view which follows the 10-10 line of FIG. It is an expansion perspective view of FIG. It is a perspective view of an arch type concrete frame. It is the front view which provided the arch-shaped method frame structure in multiple stages. It is the front view which gave planting in the legal frame of a structure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 …… Slope 2 …… Vertical beam reinforcement 3 …… Horizontal beam reinforcement 4 …… Mass 5 …… Slope reinforcement 6 …… Spacing member 7 …… Arch type frame 8 …… Vertical frame 9 …… Bottom Formwork 10 ... Bundling member 11 ... Interval holder

Claims (3)

Longitudinal beam reinforcement (2) and transverse beam reinforcement (3) are installed on the slope (1) to form a plurality of grids (4), and diagonal bars (5) are formed at the upper corners (C) of the grid. At the same time, a spacing member (6) is attached to the upper center of the grid (4), and it consists of a prefabricated arch-shaped rebar (7 ₁ ) and a fixed strip metal mesh (7 ₂ ) along the inside. Place the arch-shaped frame (7) in the grid (4) and place it close to the transverse beam reinforcement (3), the diagonal reinforcement (5) and the longitudinal beam reinforcement (2), and the arch-shaped frame (7) the top end (7 ') of the cross beam rebar top of spacing members (6), and a part of the left and right arc arched frame (7) in an oblique reinforcing bar (5), further holding-type reinforcing bars (7 ₁ ) Legs (7 ₁ ′) are attached to the longitudinal beam rebar (2) with the tying member (10) so that the strip metal mesh (7 ₂ ) does not touch the vertical and horizontal beam rebars (2) and (3) directly. installed to hold the spacing, and the vertical frame of the left and right sides continuous with the leg portion ₍₇₁ ') of the arched frame (7) and (8) to the vertical beam reinforcement (2) In addition, the bottom frame (9) in contact with the lower end portion of the formwork body and the bundling member (9) while holding an appropriate interval via an interval holder (11) in which a metal axis is bent to the transverse beam reinforcing bar (3) After mounting in 10), the concrete spray material is sprayed into the longitudinal beam reinforcing bar (2) and horizontal beam reinforcing bar (3) by spraying, and the surface of the frame (N) after the spraying is finished smoothly. An arch-shaped frame structure construction method for stable slope and comfortable landscape creation.   The arch-shaped frame structure for stabilizing the slope and creating a comfortable landscape according to claim 1, wherein the grid (4) is planted and planted by a wall planter (P), green pocket (G), etc. Construction method. An arch-shaped rebar (7 ₁ ) having a semicircular portion of a plurality of steel wires with a predetermined radius and a slightly widened leg portion (7 ₁ ′), and a semicircular portion of the rebar An arch-shaped frame (7), which is fixed along the inner side of the strip-shaped wire mesh (7 ₂ ), was fitted into the grid (4) formed by the longitudinal beam reinforcement (2) and the transverse beam reinforcement (3). Sometimes the diagonal reinforcing bar (5), which is partly in contact with the semicircular part of the arched frame, is attached to the transverse beam reinforcing bar (3) with a binding member (10) at the upper corners (C) of the grid (4) An arch-shaped frame structure for stable slope creation and comfortable landscape creation.