JP6005611B2 - Corner liner plate assembly structure - Google Patents

Description

  The present invention relates to an assembly structure of a corner liner plate, and in particular, in an annular peripheral wall formed to have a rectangular planar shape using a liner plate, an L-shaped planar liner plate disposed at a corner portion is provided. Further, the present invention relates to an assembly structure of a corner liner plate at the time of assembling vertically.

  The liner plate is used as a member for forming a simple temporary retaining wall mainly in civil engineering work. For example, a thin steel plate having a thickness of about 2.7 to 7 mm is used in a longitudinal section. It is processed so as to have a corrugated shape, and is obtained by integrally joining the inside of a frame body having a horizontally long rectangular front shape (see, for example, Patent Document 1 and Patent Document 2). In addition, the liner plate is a member that is provided in a plurality in the circumferential direction and has an upper surface shape such as an arc shape, a straight shape, and an L shape so that an annular peripheral wall having a planar shape such as a circle, an oval, or a rectangle can be formed. In addition, circumferential flanges for joining are respectively provided at the upper and lower ends of the horizontally-long rectangular front frame, and longitudinal joints for joining are provided at the left and right side ends. Each flange portion is provided.

  Then, a plurality of liner plates are joined and integrated annularly in the circumferential direction via the longitudinal joining portion by the longitudinal joining flange portion, and stacked in a plurality of stages via the lateral joining portion by the circumferential flange portion. As a mountain retaining wall that efficiently supports earth pressure and water pressure from the surrounding ground, it is possible to easily and easily form an annular peripheral wall of the desired height in the ground. It has become.

  On the other hand, it is possible to provide a basement without increasing the construction cost by using such an annular peripheral wall made of a liner plate as a basement of a basement installed below the building, not as a temporary retaining wall. For example, not only in civil engineering work, but also in construction work that constructs residential buildings, for example, it is possible to install an annular peripheral wall with liner plates in the ground as a main body structure to form an underground space. It has been proposed (see, for example, Patent Document 3).

JP 2002-295170 A JP 2010-65400 A JP 2012-180644 A

  However, when installing an annular peripheral wall with a liner plate in the ground, in civil engineering work, the annular peripheral wall is formed as a temporary retaining wall that does not require so much water sealing, so water leaks inside the annular peripheral wall. However, it is possible to easily cope with this by eliminating it using a submersible pump or the like. For example, in the case of construction work, when the annular peripheral wall is used as a main body structure for forming an underground space Therefore, a strong water stop performance is required so that water does not leak inside the annular peripheral wall of the liner plate.

  For this reason, when a plurality of liner plates are joined and integrated in the circumferential direction and the vertical direction, the compression packing material is sandwiched between the longitudinal joining portion by the longitudinal joining flange portion and the transverse joining portion by the circumferential flange portion. However, in order to obtain an underground space with an easy-to-use shape, the annular peripheral wall is formed so as to have a rectangular planar shape. In particular, it is difficult to ensure a strong water-stopping performance at the corner liner plate portion disposed at the corner portion.

  That is, the corner liner plate arranged in the corner portion has an L-shaped upper surface shape, and a known angle steel generally known as an angle material, which is generally known as an angle material, is formed in the L-shaped corner portion. , With the L-shaped release side facing outward, and the side portions on both sides across the corner of the L-shaped corner liner plate, A horizontally-long rectangular frame made of steel, a pair of upper and lower circumferential flange portions, and a longitudinal joint flange portion at the side end portions is provided, and corrugated steel plates each having a corrugated cross section are attached to the inside thereof. Provided. Therefore, at the corner where the angle steel having the L-shaped cross section is disposed, the compression packing material is stably sandwiched between the linear end surfaces of the angle steel bent in an L shape that are superimposed one above the other. Since it becomes difficult (see FIG. 7A), it becomes impossible to ensure a strong water stop performance over a long period of time, and water leakage tends to occur.

  The present invention makes it possible to sandwich the compression packing material in a stable state at the angled steel portion disposed at the corner of the corner liner plate, and to ensure a strong waterproof performance over a long period of time. An object of the present invention is to provide an assembly structure of a corner liner plate that can be used.

The present invention provides an assembly structure when an L-shaped upper surface corner liner plate arranged in a corner portion is vertically stacked on an annular peripheral wall formed to have a rectangular planar shape using a liner plate. The corner liner plate includes a corner angle iron disposed at the corner, a circumferential joining flange portion that forms upper and lower joining end surfaces, and a longitudinal joining flange portion that forms the joining end surfaces of the side ends. The corrugated steel plate processed so that the cross section in the vertical direction has a corrugated shape is integrally attached to the inside of a pair of rectangular frames surrounded by End face mounting plates are attached to the upper and lower ends of the chevron steel so that the upper surface or the lower surface is along the upper surface or the lower surface of the circumferential joining flange portion. A compression packing material sandwiched between the circumferential joining flange portion at the lower end of the upper corner liner plate and the circumferential joining flange portion at the upper end of the lower corner liner plate when the plates are stacked one above the other. , allowed to extend to the end face mounting plate of the angle section liner plate in a state sandwiched between the upper and lower said end face mounting plate, Ri Contact vertical the angle portion liner plates are assembled is bolted, the and said compression packings material to extend from the one sandwiching the corner angle irons circumferential joint flange portion, and said compression packing material that extend from the other of the circumferential joint flange portion, of said end faces mounting plate in a state where part superimposed vertically, the corners la wherein compressing packing material is sandwiched between the end face mounting plate beneath the upper By providing an assembly structure of the toner plate is obtained by achieving the above object.

  Here, when the upper surface or the lower surface of the end surface mounting plate is aligned with the upper surface or the lower surface of the circumferential bonding flange portion, the upper surface or the lower surface of the end surface mounting plate is disposed flush with the upper surface or the lower surface of the circumferential bonding flange portion. As long as the compression packing material extended to the end face mounting plate can be effectively sandwiched between the upper and lower end face mounting plates, the upper or lower surface of the end face mounting plate is connected to the circumferential joint flange. The state where the upper surface or the lower surface of the part is arranged slightly shifted up and down is also included.

  And the assembly structure of the corner liner plate according to the present invention is such that the end face mounting plate has a vertical inner edge of the end face mounting plate at the upper and lower ends of the corner hook steel. It is preferable that the upper surface or the lower surface is attached so as to be along the upper surface or the lower surface of the circumferential joint flange portion by welding to the inner side surface.

  Moreover, it is preferable that the assembly structure of the corner | angular part liner plate of this invention is a packing material with which the said compression packing material is provided with the compression rate of 50 to 99%.

  Furthermore, in the assembly structure of the corner liner plate of the present invention, it is preferable that the compression packing material is made of a foam of an EPDM (ethylene propylene rubber) blend.

  According to the assembly structure of the corner liner plate of the present invention, since the end face mounting plate is disposed at the angle steel portion disposed at the corner of the corner liner plate, the area for pressing the compression packing material is increased. Thus, it is possible to pinch in a stable state, and it is possible to ensure a strong water stop performance over a long period of time.

It is a perspective view which shows the cyclic | annular surrounding wall formed by assembling a corner | angular liner plate by the assembly structure which concerns on preferable one Embodiment of this invention in the state which removed the foundation part and the surrounding natural ground. It is a schematic fragmentary sectional view explaining composition of a basement formed using an annular peripheral wall by a corner liner plate. It is a disassembled perspective view explaining the assembly structure of the corner | angular part liner plate which concerns on preferable one Embodiment of this invention. It is a perspective view of a linear part liner plate. It is the perspective view which looked at the corner | angular part liner plate from the inner side. 3A is a plan view of the end face mounting plate, FIG. 3B is a partial side view of the portion A in FIG. 3 for explaining the mounting state of the end face mounting plate, as viewed from the B direction, and FIG. It is a bottom view. The state in which the compression packing material is sandwiched between the corner chevron of the upper and lower corner liner plates will be described, (a) is a top view of the main part of the prior art, and (b) is a top view of the main part of the present embodiment. .

  As shown in FIGS. 1 and 2, the corner liner plate assembly structure 10 according to a preferred embodiment of the present invention is a building building foundation 30 for building a residential building, for example, as a building. When the basement 31 (see FIG. 2) is formed using the annular peripheral wall 11 (see FIG. 1) having a rectangular planar shape formed by assembling the plurality of liner plates 12 and 13, the corners of the annular peripheral wall 11 are particularly formed. The corner liner plate 13 disposed in the section is employed as an assembly structure for stacking up and down and joining and integrating in a plurality of stages while maintaining a strong water-stopping performance.

  In the present embodiment, the annular peripheral wall 11 having a rectangular planar shape is assembled by stacking a plurality of liner plates 12 and 13 on a concrete base plate 32 for basement (see FIG. 2) in three stages. In addition, the basement side wall 33 having a predetermined thickness is formed as a main body structure for forming an underground space by placing concrete on the inner side of the assembled annular peripheral wall 11 as an outer mold. It is formed in the ground. Furthermore, the base 30 of a residential building is continuously formed above the formed basement side wall 33.

The corner liner plate assembly structure 10 according to the present embodiment is arranged at the corner portion of the annular peripheral wall 11 formed to have a rectangular planar shape using the liner plates 12 and 13 as shown in FIG. FIG. 3 shows an assembly structure when the L-shaped upper surface corner liner plate 13 is assembled one above the other. As shown in FIG. 3, the corner liner plate 13 is a corner chevron disposed at the corner. Inside the pair of rectangular frames 17 surrounded by the steel 14, the circumferential joining flange portion 15 that forms the upper and lower joining end surfaces, and the longitudinal joining flange portion 16 that forms the joining end surface of the side end portion, A corrugated steel plate 18 processed so that the cross section has a corrugated shape is provided as a unit. The corner liner plate 13 is attached to the upper and lower ends of the corner chevron 14 so that the end face mounting plate 19 is arranged so that the upper surface or the lower surface thereof is along the upper surface or the lower surface of the circumferential joining flange portion 15. When the corner liner plates 13 are stacked one above the other, between the circumferential joining flange portion 15 at the lower end of the upper corner liner plate 13 and the circumferential joining flange portion 15 at the upper end of the lower corner liner plate 13. The compression packing material 20 to be sandwiched is extended to the end face mounting plate 19 of the corner liner plate 13, and the upper and lower corner liner plates 13 are bolted together with being sandwiched between the upper and lower end face mounting plates 19. It is assembled. A compression packing material 20 extending from one circumferential joining flange portion 15 sandwiching the corner angle steel 14 and a compression packing material 20 extending from the other circumferential joining flange portion 15 are connected to the end face mounting plate 19. The compressed packing material 20 is sandwiched between the upper and lower end surface mounting plates 19 in a state where the portions are vertically overlapped (see FIG. 7B).

  The liner plates 12 and 13 forming the annular peripheral wall 11 are, for example, simple mountain retaining materials mainly used in civil engineering work. In this embodiment, the linear upper surface is formed so that the annular peripheral wall 11 having a rectangular planar shape can be formed. A plurality of known linear part liner plates 12 having a shape and a plurality of corner part liner plates 13 having an L-shaped upper surface shape obtained by adding the above-described improvements to the known ones are used. As shown in FIG. 4, the linear portion liner plate 12 is a corrugated steel plate 12 a formed by processing a thin steel plate having a thickness of, for example, about 2.7 to 7 mm so that the longitudinal section has a corrugated shape. Are integrally formed on the inner side of a frame body 12d having a horizontally long rectangular front shape formed by a circumferential joint flange portion 12b for joining upper and lower end portions and a longitudinal joint flange portion 12c for joining left and right side end portions. It is obtained by joining as. A plurality of bolt fastening holes 23a and 23b are formed in the circumferential direction joining flange portion 12b and the longitudinal direction joining flange portion 12c at predetermined pitches in the length direction.

  In the present embodiment, as shown in FIG. 1, the annular peripheral wall 11 includes four corner liner plates 13 disposed at four corners of a rectangular planar shape, and four locations between adjacent corner liner plates 13. The unit annular walls 11a assembled by arranging two linear part liner plates 12 each on the side of each are overlapped in three stages up and down so as to have a predetermined height.

  Moreover, in this embodiment, the circumferential joining flange part 12b of the linear part liner plate 12 and the corner | angular part liner plate 13 so that strong water-stopping performance can be hold | maintained for a long period to the formed annular surrounding wall 11. The circumferential joint 22 by the circumferential joint flange 15 is bolted in a state in which the compression packing material 20 (see FIG. 3) is sandwiched between the joint flanges 12b, 15 and the linear liner plate. Similarly, the longitudinal joining portion 12 of the longitudinal joining flange portion 12c and the longitudinal joining flange portion 16 of the corner liner plate 13 sandwich the compression packing material 20 between these joining flange portions 12c and 16. By being bolted in a state, the linear part liner plate 12 and the corner part liner plate 13 are moved vertically and circumferentially. It is joined integrally to.

  The corner liner plate assembly structure 10 according to the present embodiment includes an upper corner liner in the lateral joint portion 22 formed by the circumferential joint flange portion 15 of the corner liner plate 13 in the corner portion that is vertically stacked. Compression packing including a portion in which a corner iron 14 is provided between a circumferential joint flange 15 at the lower end of the plate 13 and a circumferential joint flange 15 at the upper end of the lower corner liner plate 13. It is possible to sandwich the material 20 in a stable state, and the ring-shaped peripheral wall 11 and the underground side wall 33 installed in the ground have a strong water stop performance that prevents water such as ground water from leaking into the basement 31. It has a function that allows it to be effectively demonstrated over a long period of time.

  That is, in the corner liner plate assembly structure 10 of the present embodiment, as shown in FIGS. 3 and 5, the corner liner plate 13 is disposed at the corner, for example, L-75 × 75 × 6 × 500. The angle plate 14 made of the angle material, the circumferential joining flange portion 15 made of a strip-shaped steel plate that forms upper and lower joining end faces, and the strip shape that forms the joining end face of the side ends. The vertical cross section is processed into a corrugated shape inside a pair of rectangular frames 17 on both sides sandwiching the angle chevron steel 14 formed by the vertical joining flange portion 16 made of a steel plate. Further, for example, a corrugated steel plate 18 made of a thin steel plate having a thickness of 2.7 mm is a steel member attached integrally. A plurality of bolt fastening holes 23a and 23b are formed in the longitudinal direction flange portion 15 for joining and the longitudinal joining flange portion 16 for joining at predetermined pitches in the length direction.

  Further, at the upper and lower ends of the corner chevron 14 of the corner liner plate 13, the end face mounting plates 19 are arranged so that the upper surface or the lower surface is along the upper surface or the lower surface of the circumferential joining flange portion 15. It is attached to be flush. In this embodiment, as shown in FIGS. 6A to 6C, the end surface mounting plate 19 is a plate piece having a plane shape of a substantially right triangle made of, for example, a steel plate having a thickness of about 6 mm. ing. The end face mounting plate 19 is preferably welded at the upper and lower ends of the corner chevron steel 14 with the inner peripheral edge of the end chevron steel plate 14 on the inner side surface of the L chevron. 24, the upper surface or the lower surface is attached so as to be flush with the upper surface or the lower surface of the circumferential joining flange portion 15.

  In the present embodiment, the straight portion liner plate 12 and the corner portion liner plate 13 are sandwiched between the longitudinal joint portion 21 by the longitudinal joint flange portions 12c and 16 and the lateral joint portion 22 by the circumferential flange portions 12b and 15. The compression packing material 20 can use various well-known packing materials for water-stopping as a waterproof tape that exhibits strong water-stopping performance by filling the gap in a compressed state. As such a compression packing material 20, it is preferable to use a packing material having a compression rate of 50 to 99%. By providing the compression packing material 20 with such a compression rate, a higher water stop effect can be obtained. Moreover, even if the strain on the compression side and the strain on the tension side appear in the longitudinal direction joint portion 21 and the lateral direction joint portion 22, it is possible to follow these strains and maintain a high water stop effect. In particular, by adjusting the compression amount to 50 to 70% and sandwiching and attaching to the longitudinal joint portion 21 and the lateral joint portion 22, it is possible to maintain a higher water stop effect.

  As the compression packing material 20, a material made of a foam of an EPDM (ethylene propylene rubber) blend can be preferably used. Since the foam of the EPDM admixture is excellent in weather resistance and water tightness, it becomes possible to improve the weather resistance and water tightness of the longitudinal joint 21 and the lateral joint 22, as well as urethane and polyethylene. Compared to a foamed water-stopping material, it has excellent heat resistance. As the compression packing material 20 made of a foamed EPDM blend, for example, a trade name “Epto Sealer” (manufactured by Nitto Denko Corporation) can be used, and for example, a material having a thickness of 10 mm before compression can be used. .

  In this embodiment, when the corner liner plates 13 are stacked up and down, as shown in FIG. 3, the circumferential joint flange 15 at the lower end of the upper corner liner plate 13 and the lower corner liner plate A state in which the compression packing material 20 sandwiched between the circumferential joint flanges 15 at the upper end of 13 is extended to the end surface mounting plate 19 of the corner liner plate 13 and sandwiched between the upper and lower end surface mounting plates 19. Thus, the upper and lower corner liner plates 13 are assembled by bolting.

Accordingly, as shown in FIG. 7 (a), according to the conventional corner liner plate, a corner angle iron 50 having a known L-shaped cross section is formed at the L-shaped corner of the corner liner plate. Therefore, when the compression packing material 51 is sandwiched between the corners of the corner liner plates that are stacked one above the other, the corner angle irons 50 that are bent in a linear L shape are stretched on both sides. The compression packing material 51 is sandwiched between the narrow end surfaces of the pair of side portions 50a to be extended, and extends from one circumferential joint flange portion 52 with the corner portion angle steel 50 sandwiched therebetween. Whereas the compression packing material 51 and the compression packing material 51 extending from the other circumferential joining flange portion 52 could be sandwiched only in a state of being slightly overlapped at the corner portions of the angle irons 50 This implementation According to the aspect, at the upper and lower ends of the corner chevron 14 of the corner liner plate 13, the end surface mounting plate 19 has the upper surface or the lower surface flush with the upper surface or the lower surface of the circumferential joining flange portion 15. As shown in FIG. 5 (b), when the compression packing material 20 is sandwiched between the corner portions of the corner liner plate 13, it is folded up into a linear L shape. When it becomes possible to sandwich the compression packing material 20 in a planar shape with a wide pressing area between the end face mounting plates 19 as well as the narrow end faces of the pair of sides on both sides of the bent angle iron 14. both the compression packing member 20 extending from the corner angle iron 14 one circumferential joint flange portion 15 sandwiching the, a compression packing member 20 extending from the other of the circumferential joint flange section 15, the end surface installation In a state of being continuous by superimposing vertically between the rate 19, it is possible to sandwich in and stable state.

  Therefore, according to the present embodiment, when the corner liner plate 13 is stacked up and down and assembled, the compression packing material 20 is also applied to the corner angle steel 14 disposed at the corner of the corner liner plate 13. Can be sandwiched in a stable state, and therefore, a strong water-stopping performance can be provided over a long period of time on the annular peripheral wall 11 and the underground side wall 33 that are preferably formed as a main body structure using the liner plates 12 and 13. It becomes possible to give effectively.

  The present invention is not limited to the above-described embodiment, and various modifications can be made. For example, the present invention is not limited to the case where a basement is formed in a construction work for building a building such as a residential building, but a temporary mountain retaining wall or the like is formed using a corner liner plate in a civil engineering work, for example. It can also be used. Further, the end face mounting plate does not necessarily have to be a plate piece having a substantially right-angled triangular planar shape, and may be a plate piece having a substantially quadrangular or substantially semicircular planar shape, for example. Further, the liner plates stacked in a plurality of stages in the vertical direction are arranged in a so-called zigzag manner to form an annular peripheral wall in a state where the position of the longitudinal joint flange portion is shifted between the liner plates adjacent in the vertical direction. May be.

10 assembly structure of corner liner plate 11 annular peripheral wall 11a unit annular wall 12 linear part liner plate 12a corrugated steel plate 12b circumferential joining flange part 12c longitudinal joining flange part 12d rectangular frame 13 corner liner plate 14 corner chevron 15 circumference Direction joining flange portion 16 Longitudinal joining flange portion 17 Rectangular frame 18 Corrugated steel plate 19 End face mounting plate 20 Compression packing material 21 Longitudinal joining portion 22 Lateral joining portions 23a and 23b Bolt fastening holes

Claims (4)

In an annular peripheral wall formed to have a rectangular planar shape using a liner plate, an L-shaped upper surface corner liner plate arranged in a corner portion is an assembly structure when assembling one above the other,
The corner liner plate is surrounded by a corner angle iron disposed at the corner, a circumferential joining flange portion that forms upper and lower joining end surfaces, and a longitudinal joining flange portion that forms the joining end surfaces of the side ends. Inside the pair of rectangular frames, a corrugated steel sheet that has been machined so that the cross section in the vertical direction has a corrugated shape is provided as a unit,
And the corner liner plate is attached to the upper and lower ends of the corner chevron steel so that the end face mounting plate follows the upper face or the lower face of the circumferential joining flange portion,
When the corner liner plates are stacked one above the other, they are sandwiched between the circumferential joining flange portion at the lower end of the upper corner liner plate and the circumferential joining flange portion at the upper end of the lower corner liner plate. The compression packing material is extended to the end face mounting plate of the corner liner plate and sandwiched between the upper and lower end face mounting plates, and the upper and lower corner liner plates are assembled by bolting. And
The compression Packing material, and said compression packing material that extend from the other of the circumferential joint flange portion, before Symbol end surface mounting to extend from said one sandwiching the corner angle iron circumferential joint flange portion An assembly structure of a corner liner plate in which the compression packing material is sandwiched between the upper and lower end face mounting plates in a state where the plates are overlapped vertically .   The upper and lower surfaces of the end surface mounting plate are bonded to the inner side surface of the angle chevron by welding the peripheral portion of the end surface mounting plate in the vertical direction at the upper and lower ends of the corner chevron. The assembly structure of the corner | angular part liner plate of Claim 1 attached so that it may follow along the upper surface or lower surface of the circumferential direction joining flange part.   The corner liner plate assembly structure according to claim 1 or 2, wherein the compression packing material is a packing material having a compression rate of 50 to 99%.   4. The corner liner plate assembly structure according to claim 3, wherein the compression packing material is made of a foam of an EPDM blend.

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