JP6846585B2 - Reinforced soil wall type structure Reinforced laying member connection structure and reinforced laying member laying method - Google Patents

Description

The present invention is mainly a harbor structure such as a quay or a revetment, and includes a wall body such as a sheet pile wall installed underwater, a lining portion on the back side thereof, and a reinforced laying member laid on the lining portion. The present invention relates to a reinforced laying member connecting structure and a reinforced laying member laying method of a reinforced soil wall type structure composed of

Structures such as quays and revetments are provided with a wall body made of steel sheet piles, etc. on the front part, and are retained by the bending rigidity of the wall body and the passive resistance at the root or bottom surface, and in the event of back earth pressure or an earthquake. A structure that opposes an external force such as the generated hydraulic pressure is known.

Conventionally, in this type of structure, for example, when the water depth is 5 m or more, a reserve work installed on the ground on the back side of the wall body supports a wall body such as a sheet pile wall via a tie material such as a tie rod or a tie wire. The type sheet pile is widely used.

However, with such a reserve type sheet pile, it is necessary to backfill the back of the sheet pile body after installing the reserve work, and as the installation water depth becomes deeper, the rigidity required for the sheet pile wall increases and the construction cost increases. Since it is difficult to secure the land width for installation, there is a problem that the installation work is complicated and the construction period is prolonged.

Therefore, in recent years, by applying the reinforced soil method, which has a proven track record as an earthquake-resistant construction method for land structures, to structures such as quays and revetments, tie materials such as reserves and tie rods have been omitted, and wall bodies such as sheet pile walls have been omitted. Development of a technique for forming an integrated anti-earth pressure structure between the backfill portion and the backfill portion is also being sought (see, for example, Patent Document 1).

The reinforced soil wall type structure using this reinforced earth method is provided with a backing part made of solidified soil on the back side of the wall body such as a sheet pile wall, and one end is a wall body at each desired height of the backing part. Reinforced laying members such as geogrids are laid in the state of being connected to, to increase the shear strength at the backfilling part to reduce the earth pressure acting on the wall body, and to backfill the wall body through the reinforced laying member. By supporting the portion, the wall body and the backfill portion form an integral anti-earth pressure structure.

In the construction of such a reinforced soil wall type structure, each reinforced laying member is installed by depositing solidified soil to a desired height, leveling the upper surface of the soil, and then winding it into a roll shape such as a geogrid. The reinforced laying member was subsided to the installation location in the water, and one end of the reinforced laying member was connected to the wall body by a diver and deployed toward the horizontal rear of the wall body.

Further, as a method of efficiently subsiding a reinforcing laying member such as a geogrid and connecting it to a wall body, a guide member made of channel steel or the like is provided in advance in the wall body constituent member such as a steel pipe sheet pile constituting the wall body. A construction method has also been developed in which one end is attached to a rod-shaped connecting member, and a reinforcing laying member such as a geogrid wound in a roll shape is slid and subsided while both ends of the connecting member are supported by the guide member. ing.

JP-A-2007-0566663

However, in the conventional technique as described above, the driving accuracy of the wall body constituent members such as the steel sheet pile has a great influence, and the actual driving position of the sheet pile and the planned position are deviated due to the ground conditions and the like. In this case, the distance between the guide members is not constant, and the connecting member around which one end of the reinforcing laying member is wound may come off from the guide members, making it impossible to slide.

Further, in the above-described embodiment, since it is necessary to provide the guide material over the entire upper and lower parts of the wall body, there is a problem that the material cost increases accordingly.

Therefore, in view of such conventional problems, an object of the present invention is to provide a reinforced laying member connecting structure and a reinforced laying member laying method of a reinforced soil wall type structure capable of easily connecting a reinforced laying member to the back surface of a wall body. It was made as.

The features of the invention according to claim 1 for solving the above-mentioned conventional problems are a wall body installed in water, a backfill portion in which backfill stones are piled up on the back side of the wall body, and one end. Is in a reinforced soil wall type structure provided with a plurality of surface-like, net-like or lattice-like reinforced laying members laid at desired heights of the backfill portion in a state of being connected to the wall body. In the reinforced laying member connecting structure of the reinforced soil wall type structure for connecting the reinforced laying member to the wall body, a plurality of connecting guide members fixed to the back surface of the wall body at vertical intervals and the above. It is provided with a connecting convex body projecting from a mounting frame to which one end of a reinforced laying member is fixed, and the connecting convex body includes a support base portion projecting from the mounting frame and side surfaces of the support base portion. The connecting guide member is provided with a more protruding engaging overhang piece, and the connecting guide member has an engaging hole portion into which the engaging overhang piece is inserted from an upper surface opening and a hook arranged on the back side of the engaging hole portion. A stop piece portion and a vertically slit-shaped support base insertion groove formed in an arrangement adjacent to the locking piece portion are provided so that the engaging overhang piece is engaged with the locking piece portion. It is in the reinforced laying member connection structure of the reinforced soil wall type structure.

The feature of the invention according to claim 2 is that, in addition to the configuration of claim 1, the engaging holes are formed so that the inner side surfaces facing each other in the normal direction of the wall body are arranged in parallel with each other.

The feature of the invention according to claim 3 is that, in addition to the configuration of claim 1, the engaging hole portion is formed in a tapered shape in which the inner side surfaces facing each other in the normal direction of the wall body are close to each other downward. The engagement overhang piece is fitted in a wedge shape.

The feature of the invention according to claim 4 is that, in addition to the configuration of any one of claims 1 to 3, the wall body is composed of a steel wall member, and the connecting guide member is the wall member. It is in that it is welded so as to project to the back of the.

The features of the invention according to claim 5 are a backing material loading step of loading a backing material to a predetermined height on the back surface side of the wall body after installing a wall member to construct the wall body, and loading. In the method of laying a reinforced soil wall type structure, the reinforced laying member is a method of laying a planar, net-like or lattice-shaped reinforced laying member on the upper surface of the backfill material, which is sequentially repeated from the lower side. A connecting convex body having a support base projecting from a mounting frame fixed to one end of the support base and an engaging overhang piece protruding from a side surface of the supporting base, and the engaging overhanging piece An engaging hole portion inserted from the upper surface opening, a locking piece portion arranged on the back side of the engaging hole portion, and a vertically slit-shaped support base formed in an arrangement adjacent to the locking piece portion. Using a connecting guide member having an insertion groove, a plurality of the connecting guide members are fixed to the back surface of the wall member at an upper and lower interval, and after constructing the wall body, the said Each time the backing material is put into the back surface side of the wall body up to the height of each connecting guide member, the connecting convex body is engaged with the connecting guide member to connect the reinforced laying member to the wall body. , Is a method of laying a reinforced laying member of a reinforced soil wall type structure in which the reinforced laying member is laid on the loaded backing material.

The feature of the invention according to claim 6 is that, in addition to the configuration of claim 5, in the backing material charging step, a stretching recess is formed on the upper surface of the backing material charged, and the reinforcing laying member is formed. After laying on the extension recess, in the next backing material charging step, the backing material is started from the central portion of the stretching recess.

The feature of the invention according to claim 7 is that, in addition to the configuration of claim 6, an anchor frame is fixed to the other end side of the reinforcing laying member, and the anchor frame is attached to the rear side edge portion of the extension recess. It is to be installed in.

As described above, the reinforced laying member connecting structure of the reinforced soil wall type structure according to the present invention includes a wall body installed in water, a backfill portion in which backfill stones are piled up on the back side of the wall body, and a backfill portion. A reinforced soil wall type structure including a plurality of surface-like, net-like or lattice-like reinforced laying members laid at desired heights of the backfill portion with one end connected to the wall body. In the reinforced laying member connecting structure of the reinforced soil wall type structure that connects the reinforced laying member to the wall body, a plurality of connecting guide members fixed to the back surface of the wall body at vertical intervals. It is provided with a connecting convex body projecting from a mounting frame to which one end of the reinforced laying member is fixed, and the connecting convex body includes a support base portion projecting from the mounting frame and a support base portion of the support base portion. The connecting guide member is provided with an engaging overhang piece protruding from the side surface, and the connecting guide member is arranged at an engaging hole portion into which the engaging overhang piece is inserted from an upper surface opening and on the back side of the engaging hole portion. A locking piece portion and a vertically slit-shaped support base insertion groove formed in an arrangement adjacent to the locking piece portion are provided so that the engaging overhang piece is engaged with the locking piece portion. As a result, the central portion of each reinforced laying member is connected to the back surface of the wall body at one point (one place) via the mounting frame, the connecting convex body and the connecting guide member, so that each wall member can be struck. It can be reliably connected without being affected by the installation conditions.

Further, in the present invention, the engaging hole portion is formed so that the inner side surfaces facing each other in the wall normal direction are arranged in parallel with each other, so that the backfill portion is subsided by soft ground or the like under the backfill portion. Even in such a case, since the connecting guide member can be slid along the connecting convex body, it is possible to prevent the generation of local stress acting on the connecting portion.

On the other hand, in the present invention, the engaging hole portion is formed in a tapered shape in which the inner side surfaces facing each other in the wall normal direction are close to each other downward, and the engaging overhang piece is fitted in a wedge shape. By doing so, for example, when the ground under the backfill portion is stable and there is no concern about subsidence of the backfill portion, the wall body and the reinforcing laying member can be connected with high accuracy without using bolts or the like in water. can do.

Further, in the present invention, the wall body is made of a steel wall member, and the connecting guide member is welded to the back surface of the wall member so as to form a steel wall member. The connecting guide member can be preferably installed.

Further, in the method of laying the reinforced laying member of the reinforced soil wall type structure according to the present invention, after the wall member is installed to construct the wall body, the backing material is put on the back side of the wall body to a predetermined height. Reinforcement laying of reinforced soil wall type structure that repeats the process of loading the backfill material and the process of laying the surface-like, net-like or grid-like reinforcement laying member on the upper surface of the charged backing material from the bottom. In the member laying method, a connecting convex body having a support base portion protruding from a mounting frame fixed to one end of the reinforced laying member and an engaging overhang piece protruding from the side surface of the support base portion. , The engaging hole portion into which the engaging overhang piece is inserted from the upper surface opening, the locking piece portion arranged on the back side of the engaging hole portion, and the arrangement adjacent to the locking piece portion. Using a connecting guide member having a vertically slit-shaped support base insertion groove, a plurality of connecting guide members are fixed to the back surface of the wall member at vertical intervals. After constructing the wall body, every time the backing material is put on the back side of the wall body to the height of each connecting guide member, the connecting convex body is engaged with the connecting guide member to lay the reinforcement. By connecting the member to the wall body and laying the reinforced laying member on the loaded backing material, the reinforced laying member can be easily connected to a desired position guided by the connection guide member. .. Further, since the connecting guide member is partially provided on the wall body, the member cost can be reduced.

Further, in the present invention, in the backfilling material charging step, a stretching recess is formed on the upper surface of the backfilling material charged, and the reinforcing laying member is laid on the stretching recess, and then the next backing is performed. By starting the charging of the backing material from the central portion of the extension recess in the filling material charging process, it is possible to prevent the reinforcing laying member from sagging, and the anchor frame is fixed to the other end side of the reinforcing laying member. By installing the anchor frame on the rear side edge of the extension recess, it is possible to more reliably prevent the reinforcing laying member from sagging.

It is sectional drawing which shows the outline of the reinforcement laying member connection structure of the reinforced soil wall type structure which concerns on this invention. It is a partially enlarged plan view which shows the reinforcement laying member connection structure of the same above. It is a rear view which shows the connection guide member of the same above. It is a rear view which shows another example of the connection guide member. It is a schematic cross-sectional view which shows the construction procedure of the reinforced soil wall type structure, and is the figure which shows the state of the construction process of a wall body. It is the schematic sectional drawing which shows the state of the reinforcement laying member laying process of the same above. FIG. 6 is a partially enlarged schematic cross-sectional view showing an installation state of the reinforcing laying member in the reinforcing laying member laying process of FIG. It is the schematic sectional drawing which shows the state of the backing material loading process of the same above. It is the schematic sectional drawing which shows the completed state of the back-in part of the same above.

Next, the reinforced laying member connecting structure of the reinforced soil wall type structure according to the present invention will be described based on the examples shown in FIGS. 1 to 9. In the figure, reference numeral 1 is a water bottom ground, reference numeral 2 is a water surface, and reference numeral 3 is a reinforced soil wall type structure.

The reinforced soil wall type structure 3 includes a wall body 4 installed on the front surface, a backing portion 5 in which backing materials 5a, 5a ... Are stacked on the back side of the wall body 4, and a backfilling portion 5. It is provided with a landfill portion 6 which is landfilled so as to cover the above.

As shown in FIG. 2, the wall body 4 is composed of a plurality of wall members 7, 7 ..., and the underwater ground 1 is in a state where the side edges of the wall members 7, 7 ... Are connected to each other. It is placed in the area to separate the offshore side from the land side.

The wall members 7, 7 ... Are unitized by connecting a plurality of steel sheet piles 7a, 7a ... to each other at their side edges, and the upper end of the wall members 7, 7 ... The wall body 4 is constructed by driving the steel into the bottom ground 1 until the desired rooting depth is reached. In this embodiment, the extension direction of the wall body 4, that is, the direction in which the wall members 7 and 7 are connected is referred to as the wall body normal direction.

The wall members 7, 7 ... Are not limited to those made of the above-mentioned general U-shaped steel sheet piles and hat-shaped steel sheet piles, and may be made of, for example, steel pipe sheet piles, such as PC sheet piles. It may consist of a concrete sheet pile.

The backing portion 5 is constructed by depositing backing materials 5a, 5a ... Such as chestnut stones on the back surface side of the wall body 4. Reference numeral 8 in the drawing is a sheet material 8 such as a water-impervious sheet or a sand-proof sheet that covers the upper surface and the back slope of the backing portion 5.

Further, the reinforced earth wall type structure 3 includes a plurality of reinforced laying members 9 laid at desired heights of the backfill portion 5, and increases the shear strength of the backfill portion 5 to act on the wall body 4. The earth pressure is reduced, and the wall body 4 is supported by the backfill portion 5 via the reinforced laying member 9, so that the wall body 4 and the backfill portion 5 form an integral anti-earth pressure structure. It has become.

As the reinforcing laying member 9, a geogrid or the like having flexibility and corrosion resistance and having high tensile strength is used, and as shown in FIG. 2, a large number of reinforcing laying members 9 are arranged in parallel with each other at intervals. 9a, 9a ... and a large number of horizontal members 9b, 9b ... It is formed.

One end (tip) of the reinforcing laying member 9 is attached to a mounting frame 10 made of H-shaped steel or the like, and the reinforcing laying member 9 is held by the mounting frame 10 in a state of being expanded in the width direction. ..

The mode of the mounting frame 10 is not limited to the one using the H-shaped steel described above, and for example, a steel pipe may be used, the frame 10 is composed of a pair of channel steels, and a reinforcing laying member is provided between the channel steels. It may sandwich the end of 9.

Further, an anchor frame 11 made of inverted T-shaped steel or the like may be attached to the other end of the reinforcing laying member 9.

Further, each reinforcing laying member 9 has a connecting structure including a plurality of connecting guide members 12, 12 ... Fixed to the back surface of the wall body 4 and a connecting convex body 13 projecting from the mounting frame 10. It is connected to the back surface of the wall body 4.

As shown in FIGS. 2 and 3, the connecting convex body 13 has a support base portion 15 whose base end is supported by the fixing flange portion 14 and an engagement tension that protrudes outward from both ends of the tip end portion of the support base portion 15. The protrusions 16 and 16 are provided, and the support base 15 and the engaging protrusions 16 and 16 form a T-shape in a plan view.

Further, the connecting convex body 13 is formed so that the vertical length is shorter than the vertical length of the connecting guide members 12, 12 ...

In the connecting convex body 13, the fixing flange portion 14 is fixed to the mounting frame 10 via the fixing bolt 17, and the reinforcing laying member 9 can be fixed to the mounting frame 10 in a wound state. ..

Then, by engaging the connecting convex body 13 with the connecting guide members 12, 12 ... Fixed at predetermined intervals above and below the wall member 7, the reinforcing laying member 9 is attached to the wall body 4. It can be connected to the back.

The connecting guide members 12, 12 ... Are arranged on the engaging hole portion 18 into which the engaging overhang pieces 16 and 16 of the connecting convex body 13 are inserted from the upper surface opening and on the back side of the engaging hole portion 18. The engaging pieces 19 and 19 and the vertically slit-shaped support base insertion groove 20 formed adjacent to the locking pieces 19 and 19 are provided, and the engagement is inserted into the engagement hole 18. The overhanging pieces 16 and 16 are engaged with the locking pieces 19 and 19 so as to be connected to the connecting convex body 13.

The connecting guide members 12, 12 ... Are composed of a pair of L-shaped members 21 made of steel materials, and by fixing both L-shaped members 21 symmetrically to the back surface of the wall member 7, the connecting guide members 12, 12 ... 12 ... is formed.

Each L-shaped member 21 includes a thin plate-shaped side plate portion 22 in which one side edge is welded to the wall member 7, and a locking piece portion 19 bent from the other side edge of the side plate portion 22. By arranging the side plate portions 22 to face each other in the normal direction of the wall body and the locking pieces 19 and 19 to be abutted at intervals, the two L-shaped members 21 are arranged so that the side plate portions 22 are butted against each other at intervals. An engaging hole 18 is formed between the side plates 22 and 22, and locking pieces 19 and 19 are arranged on the back side of the engaging hole 18, and a support base is provided between the locking pieces 19 and 19. The insertion groove 20 is formed.

The engaging hole portion 18 has inner side surfaces facing each other, that is, both side plate portions 22 face each other in parallel, and the engaging overhang pieces 16 and 16 are inserted so as to be movable in the vertical direction.

Therefore, even when the ground under the backing portion 5 sinks, the connecting convex body 13 can follow the sinking while being guided by the connecting guide member 12, so that stress does not act locally on the connecting structure portion. It has become.

The mode of the connecting guide members 12, 12 ... Is not limited to the above-described embodiment. For example, when the ground under the backing portion 5 is stable and there is no risk of the backing portion 5 sinking. , As shown in FIG. 4, the inner side surfaces 18a and 18a of the engaging hole portion 18 facing each other in the wall normal direction are formed in a tapered shape so as to be close to each other downward, and the engaging overhang pieces 16 and 16 are formed. It may be fitted in a wedge shape.

In this case, the side edges of the engaging overhang pieces 16 and 16 are cut out in an oblique direction and formed in a wedge shape so that they can be fitted with the connecting guide members 12, 12 ... The reinforcing laying member 9 can be positioned at a predetermined height with respect to the wall body 4 with high accuracy without using a fixture.

Next, a method of laying the reinforced laying member of the reinforced soil wall type structure using the above-mentioned connecting structure will be described.

First, as a preliminary preparation, a plurality of steel sheet piles are combined to form a wall member 7 in a work yard or the like on land, and each connecting guide member 12, 12. Fix.

Further, on each reinforcing laying member 9, a mounting frame 10 is attached to one end thereof, a connecting convex body 13 is attached to the front surface of the mounting frame 10, and an anchor frame 11 is attached to the other end.

Next, as shown in FIG. 5, the bottom ground 1 at a desired embedding depth while matching the heights of the connecting guide members 12, 12 ... With each other for the wall members 7, 7 ... A wall body 4 is constructed on the front part of the water by placing it in the water. If the casting heights of the wall members 7, 7 ... Are expected to vary, it is desirable to set the vertical lengths of the connecting guide members 12, 12 to be longer.

Next, using a gut ship, a grab ship, or the like (not shown), the backing material 5a, 5a ... made of split chestnut stone is put into the back side of the wall body 4, and the backing material 5a, 5a ... is deposited (backing material charging process).

At that time, the backing materials 5a, 5a ... Are put in with the positions of the connecting guide members 12, 12 ... As a guide, and after the backing materials 5a, 5a ... Are put in, the backing material 5a, 5a ... The upper surface of the materials 5a, 5a ... Is leveled by a diver. In that case, as shown in FIGS. 6 and 7 (a), the extension recess 23 that is recessed downward is formed in accordance with the position of the reinforcing laying member 9. As shown in FIG. 7B, a plurality of extension recesses 23 may be formed.

Next, the reinforcing laying member 9 is subsided on the charged backing material, and as shown in FIG. 7, the connecting convex body 13 is engaged with the lowermost connecting guide members 12, 12 ... The reinforcing laying member 9 is laid in a stretched state on the upper surface of the charged backing materials 5a, 5a ..., That is, on the extension recess 23 (reinforcing laying member laying step).

The reinforcing laying member 9 is installed so that the anchor frame 11 attached to the other end side is located at the rear side edge of the extension recess 23, and the reinforcing laying member 9 is in a stretched state.

At that time, since the connecting convex body 13 can be connected while being guided by the connecting guide members 12, 12 ..., The reinforcing laying member 9 can be easily connected to a desired height. Further, since the central portion of each reinforcing laying member 9 is connected to the back surface of the wall body 4 at one point (one place) via this connecting structure, the placement status of the wall members 7, 7 ... Can be reliably connected without being affected by.

Next, as shown in FIG. 8, desired heights of backing materials 5a, 5a ... made of split chestnut stone or the like are placed on the reinforcing laying member 9 laid by using a gut ship, a grab ship or the like (not shown). It is charged up to that point (backfill material charging process).

At that time, the backing material is charged from the central portion of the extension recess 23, so that the reinforcing laying member 9 is stretched along the extension recess 23 due to the weight of the backing members 5a, 5a ... Therefore, the reinforcing laying member 9 can be embedded in the backing portion 5 without slack.

After that, similarly to FIGS. 6 to 8, the backing material charging step and the reinforcing laying member laying step are repeated from the lower side for each desired height to construct the backing portion 5.

Then, when the construction of the backfill portion 5 is completed, as shown in FIG. 9, after installing the sheet material 8 such as the impermeable sheet and the sandproof sheet on the upper surface and the back slope of the backfill portion 5, the backfill portion 5 Landfill to cover. Further, if necessary, the superstructure of the wall body 4 and the pavement of the upper surface of the structure are performed to complete the work.

In the reinforced laying member connecting structure of the reinforced soil wall type structure 3 configured in this way, the work of connecting the reinforced laying member 9 to the wall body 4 underwater by a diver can be simplified, and the work can be performed safely and efficiently. It can be done and the construction period can be shortened.

Further, in the reinforced laying member connecting structure of the reinforced soil wall type structure 3, it is not necessary to provide the connecting guide members 12, 12 ... Can be reduced.

In the above-described embodiment, an example in which a grid-like member such as a geogrid is used for the reinforcing laying member 9 has been described, but the reinforcing laying member 9 is not limited to this, and the reinforcing laying member 9 is not limited to this, for example, a net-like structure, a honeycomb structure, or the like. It may be.

Further, the present invention is not limited to the sheet pile type structure, and can be applied to a gravity type structure in which a bank body such as a caisson or an L-shaped retaining wall is used for the front wall body 4.

The reinforced soil wall type structure 3 of the present invention includes a revetment, and can be applied not only to harbor structures but also to structures such as rivers and lakes.

1 Underwater ground 2 Water surface 3 Reinforced soil wall type structure 4 Wall body 5 Backfill part 6 Landfill part 7 Wall member 8 Sheet material 9 Reinforcement laying member 10 Mounting frame 11 Anchor frame 12 Connecting guide member 13 Convex body for connecting 14 Fixing flange 15 Support base 16 Engagement overhang piece 17 Fixing bolt 18 Engagement hole 19 Locking piece 20 Support base insertion groove 21 L-shaped member 22 Side plate 23 Extension recess

Claims (7)

A wall body installed underwater, a backfill portion in which backfill stones are piled up on the back side of the wall body, and one end connected to the wall body are laid at a desired height of the backfill portion. Reinforced soil wall type structure including a plurality of planar, net-like or lattice-shaped reinforcing laying members, and reinforced laying of the reinforced soil wall type structure for connecting the reinforced laying member to the wall body. In the member connection structure
A plurality of connecting guide members fixed to the back surface of the wall body at intervals at the top and bottom, and a connecting convex body projecting from a mounting frame to which one end of the reinforcing laying member is fixed are provided.
The connecting convex body includes a support base portion projecting from the mounting frame and an engaging overhang piece protruding from the side surface of the support base portion.
The connecting guide member includes an engaging hole portion into which the engaging overhang piece is inserted from the upper surface opening, a locking piece portion arranged on the back surface side of the engaging hole portion, and adjacent to the locking piece portion. It is provided with a vertical slit-shaped support base insertion groove formed in the arranged arrangement.
A reinforced laying member connecting structure of a reinforced soil wall type structure, characterized in that the engaging overhang piece is engaged with the locking piece portion. The reinforced laying member connecting structure of the reinforced soil wall type structure according to claim 1, wherein the engaging hole portion is formed so that the inner side surfaces facing each other in the wall normal direction are arranged in parallel with each other. The first aspect of claim 1, wherein the engaging hole portion is formed in a tapered shape in which inner side surfaces facing each other in the wall normal direction are close to each other downward, and the engaging overhang piece is fitted in a wedge shape. Reinforced laying member connection structure of reinforced soil wall type structure. The reinforced soil wall type according to any one of claims 1 to 3 , wherein the wall body is made of a steel wall member, and the connecting guide member is welded to the back surface of the wall member. Reinforced laying member connection structure of the structure. After installing the wall member and constructing the wall body, the backing material loading process of loading the backing material to a predetermined height on the back side of the wall body, and the surface shape on the upper surface of the charged backing material, In the method of laying reinforcement laying members for reinforced soil wall type structures, the process of laying members for laying net-like or grid-like reinforcement laying members is repeated sequentially from the bottom.
A connecting convex body having a support base portion protruding from a mounting frame fixed to one end of the reinforcing laying member and an engaging overhang piece protruding from the side surface of the support base portion.
The engaging hole portion into which the engaging overhang piece is inserted from the upper surface opening, the locking piece portion arranged on the back side of the engaging hole portion, and the locking piece portion are formed in an arrangement adjacent to the locking piece portion. Using a connecting guide member having a vertical slit-shaped support base insertion groove,
A plurality of the connecting guide members are fixed to the back surface of the wall member at vertical intervals.
After constructing the wall body, every time the backing material is put into the back side of the wall body to the height of each connecting guide member, the connecting convex body is engaged with the connecting guide member to lay the reinforcement. A method for laying a reinforced laying member of a reinforced soil wall type structure, characterized in that the member is connected to the wall body and the reinforced laying member is laid on the charged backing material. In the backfilling material charging step, a extension recess is formed on the upper surface of the backfilling material charged, and the reinforced laying member is laid on the stretching recess, and then in the next backfilling material charging step. The method for laying a reinforced laying member for a reinforced soil wall type structure according to claim 5, wherein the backing material is started from the central portion of the extension recess. The reinforced laying member of the reinforced soil wall type structure according to claim 6, wherein the anchor frame is fixed to the other end side of the reinforced laying member, and the anchor frame is installed at the rear side edge of the extension recess. Laying method.

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