JP6388266B2 - Wall construction method - Google Patents

Description

  The present invention relates to a wall surface construction method suitable for use in constructing wall surfaces in various concrete structures.

  Conventionally, a wall surface portion standing up with respect to the ground is arranged by arranging a large number of panel members in the vertical direction and the horizontal direction, and a predetermined work surface is covered by the wall surface portion, and between the wall surface portion and the work surface. As a construction method for constructing a wall surface by filling concrete into the gap, a retaining wall construction method proposed by the present applicant in Patent Document 1 is already known.

  The retaining wall construction method disclosed in the same document 1 reduces the cost during construction, easily ensures the continuity (integration) in the surface direction of the entire retaining wall, and the construction quality of the entire retaining wall. The specific construction method is to stand one or more wall panels upright at a predetermined angle with respect to the ground. When constructing a retaining wall that covers a predetermined construction surface, a plurality of main support bars formed in a substantially L shape by the main vertical bars standing up at a predetermined angle and the main horizontal bars positioned horizontally are installed on the ground side. A wall panel using precast concrete in which a part of the reinforcing bar embedded inside is exposed on the back side as an exposed streak portion is fixed by leaning against the main longitudinal streak portion, and a plurality of exposed streak portions and / or main longitudinal streak portions are provided. Supported by auxiliary support muscle After, in which so as to provide a Nakagome concrete section by filling concrete between the construction surface and the wall panel.

JP2015-31105A

  However, the wall surface (retaining wall) construction method according to Patent Document 1 described above still has the following problems to be solved.

  First, because the wall panels made of precast concrete are used, the cost and quality of precast concrete can be ensured, but on the other hand, the weight per wall panel is considerably heavy. The use of heavy machinery such as is essential. That is, in the case of a wall panel made of precast concrete, the weight per square meter is usually around 120 [kg], and the construction and transportation by the operator himself are almost difficult, and the workability and transportability are inferior, There is also a difficulty from the viewpoint of ensuring safety during construction.

  Secondly, this type of precast concrete is usually integrated as a single wall panel by embedding a reinforcing bar, so that it cannot be easily cut, and is difficult to cut. Eventually, a wall panel corresponding to the shape and dimensions of the wall surface in the concrete structure can be easily obtained by processing, and there is room for further improvement from the viewpoint of enhancing the quality and low cost of the wall surface.

  The object of the present invention is to provide a wall surface construction method that solves such problems in the background art.

  In order to solve the above-described problems, the wall surface construction method according to the present invention stands up at a predetermined angle with respect to the ground G by arranging one or more panel members P ... in the vertical direction Fv and / or the horizontal direction Fh. The wall surface portion 2 is constructed, and a predetermined work surface C is covered by the wall surface portion 2 and the concrete 3 is filled in the gap S between the wall surface portion 2 and the work surface C. When constructing the wall surface Mw, one or two or more stiff muscle members 5 are attached to the back surface 4r of the fiber reinforced cement plate 4 and are inserted into the insertion holes 4h provided in the fiber reinforced cement plate 4. 6s, and nuts 6n that are screwed onto the bolts 6s are used to obtain the panel member P by fixing the muscle members 5 to the fiber reinforced cement board 4 and to obtain one or more panel portions. Characterized by being adapted to construction the wall portion 2 by arranging P ... a longitudinally Fv and / or transverse direction Fh.

  In this case, according to a preferred aspect of the invention, the fiber reinforced cement board 4 includes two fiber reinforced cement board members 4a and 4b which are superposed and one fiber reinforced cement board member 4a and the other fiber reinforced cement board member 4b. On the other hand, it is desirable that the vertical direction Fv and the horizontal direction Fh are offset by a predetermined width Lo. Further, when the reinforcing member 5 is fixed to the fiber reinforced cement board 4, the reinforcing member 5 is pressed by the pressing member 7, and the pressing member 7 is fixed to the fiber reinforced cement board 4 using the bolt 6s and the nut 6n. be able to. Note that it is desirable to use a truss bar 5t for the bar member 5. Further, it is desirable that the bolt 6s is inserted from the back surface 4r side into the insertion hole 4h of the fiber reinforced cement board 4 and the nut 6n is screwed from the front surface 4f side of the fiber reinforced cement board 4. On the other hand, the wall surface portion 2 can be supported by the support muscle structure 8 which is coupled to the muscle member 5 and is a combination of a plurality of support muscles 8f..., 8r. Note that the wall surface portion 2 is suitable for use as the wall surface Mw of the retaining wall Mp.

  According to the construction method of the wall surface according to the present invention by such a technique, the following remarkable effects can be obtained.

  (1) Basically, the fiber reinforced cement board 4 is used as the panel member P, and the stiff members 5 are fixed to the back surface 4r of the fiber reinforced cement board 4 so as to ensure the rigidity as the panel member P. Therefore, the weight per panel member P can be reduced to about 27 [kg]. Therefore, it is possible for even one worker to have it, and it is possible to dramatically improve the workability and transportability, such as the need to use or reduce the use of heavy machinery such as cranes during construction and transportation, and safety during construction. It can also contribute to improvement.

  (2) The fiber reinforced cement board 4 is configured as a thin panel material as compared with precast concrete, and has flexibility, so that it can be easily cut and can be cut and processed. Therefore, the quality and low cost of the wall surface part 2 can be improved, such as the panel member P... Matching the shape and size of the wall surface Mw in the concrete structure M, and the wall surface part 2 can be easily obtained. it can.

  (3) According to a preferred embodiment, when the fiber reinforced cement board 4 is constructed, two fiber reinforced cement board members 4a and 4b are overlapped, and one fiber reinforced cement board member 4a is superposed on the other fiber reinforced cement board member. 4b can be configured to be offset by a predetermined width Lo ... in the vertical direction Fv and the horizontal direction Fh, respectively, so that the adjacent panel members P ... can be overlapped by a predetermined width Lo ... The gap between the panel members P can be eliminated, and the flatness of the surface of the wall surface portion 2 can be easily secured.

  (4) According to a preferred embodiment, when the reinforcing members 5 are fixed to the fiber reinforced cement plate 4, the reinforcing members 7 are pressed by the pressing members 7 and the pressing members 7 are fiber reinforced using the bolts 6s and the nuts 6n. If it is fixed to the cement board 4, even the muscle member 5 having a form that cannot be directly fixed by the bolt 6s and the nut 6n can be fixed via the pressing members 7. It is possible to improve the degree of freedom of selection and to optimize the shape of the muscle member 5 to be used.

  (5) According to a preferred embodiment, if the truss member 5t is used for the muscle member 5, the truss muscle 5t can easily reduce the weight and increase the rigidity, and at least the three-dimensional shape of the truss muscle 5t has at least Since a part of it can be embedded in the concrete 3 filled on the back surface 4r side of the fiber reinforced cement board 4, the fixing strength and the integrity of the panel member P and the concrete 3 can be further increased.

  (6) According to a preferred embodiment, the bolt 6 s is inserted from the back surface 4 r side into the insertion hole 4 h... Of the fiber reinforced cement plate 4 and the nut 6 n is screwed from the front surface 4 f side of the fiber reinforced cement plate 4. In this case, for example, even when the panel member P (fiber reinforced cement plate 4) is dirty or damaged, the fiber reinforced cement plate 4 is attached to the concrete 3 by removing the nut 6n on the surface 4f side. Since it can be attached and detached, the fiber reinforced cement board 4 can be easily replaced and repaired, and can be performed quickly and at low cost.

  (7) According to a preferred embodiment, when supporting the wall surface portion 2, the supporting muscle structure 8 formed by combining the plurality of supporting muscles 8 f, 8 r, 8 s, 8 c,. If it does so, since the other construction parts except panel member P ... (wall surface part 2) can utilize the conventional construction method as it is, while being able to construct the whole wall surface Mw easily, reliability and Low cost can be easily secured.

  (8) If the wall surface portion 2 is applied to the wall surface Mw of the retaining wall Mp according to a preferred embodiment, the panel member P according to the present invention is used in place of the precast concrete conventionally used for the wall surface portion 2 of the retaining wall Cs. .. Can be used, and can be implemented as an optimum form from the viewpoint of enjoying the effects according to the present invention.

The back surface block diagram of the panel member which comprises the wall surface part constructed with the construction method of the wall surface which concerns on suitable embodiment of this invention, Plan view configuration including an enlarged cross-sectional view extracting a part of the panel member, The perspective view which shows a part of truss reinforcement (muscle member) with which the panel member is equipped, The front view which shows a part of fiber reinforced cement board member used for the panel member, Side view of the panel member and corresponding parts diagram, Side configuration diagram showing the internal structure of the retaining wall constructed by the construction method, Explanatory drawing when replacing the fiber reinforced cement board in the retaining wall constructed by the construction method, Sectional side view showing a part of the panel member according to the modified example of the construction method,

  Next, preferred embodiments according to the present invention will be given and described in detail with reference to the drawings.

  First, the panel member P used for the construction method of the wall surface which concerns on this embodiment is demonstrated with reference to FIGS.

  The panel member P is attached to one or two or more (two in the illustrated example) of stiff muscle members 5 on the back surface 4r of the fiber reinforced cement board 4, and through holes 4h provided in the fiber reinforced cement board 4 are provided. Are provided with a basic structure for fixing the muscle members 5 to the fiber reinforced cement board 4 by using bolts 6s inserted through the nuts 6 and nuts 6n screwed into the bolts 6s. When the reinforcing member 5 is fixed to the fiber reinforced cement plate 4, the reinforcing member 5 is pressed by the two holding members 7 and 7, and the holding members 7 and 7 are fixed to the fiber reinforced cement using bolts 6s and nuts 6n. It was fixed to the plate 4.

  Further, the fiber reinforced cement board 4 is configured by overlapping two fiber reinforced cement board members 4a and 4b. As an example, one fiber reinforced cement board member 4a (4b is also the same) is prepared by mixing fibers and water into cement and mixing them thoroughly using a wet machine. After being press-molded using, it was cured. FIG. 4 shows the shape of the fiber reinforced cement board member 4a used. The illustrated fiber reinforced cement board member 4a has a thickness of 5 [mm], a vertical length of 500 [mm], a horizontal length of 2000 [mm], and a weight of approximately 10 [kg]. Further, a total of ten insertion holes 4h... Are formed in the fiber reinforced cement board member 4a. These insertion holes 4h are holes for passing bolts 6s, which will be described later, and are formed at preset positions. In addition, the insertion hole 4h ... in each fiber reinforced cement board member 4a, 4b differs in the position to set, respectively.

  Moreover, the truss member 5t shown in FIG. The example truss muscle 5t has a length of 1800 [mm] and a height of 80 [mm]. Then, when manufacturing one panel member P, two truss bars 5t and 5t are used. If such a truss muscle 5t is used for the muscle member 5, the truss muscle 5t can be easily reduced in weight and rigidity, and at least a part of the truss muscle 5t having three-dimensionality can be obtained. Can be embedded in the concrete 3 (described later) filled on the back surface 4r side of the fiber reinforced cement board 4, so that the fixing strength and the integrity of the panel member P and the concrete 3 can be further improved. is there.

  Further, a reinforcing bar (straight bar) having a diameter of 10 [mm] and a length of 450 [mm] is used for the presser member 7. In the illustrated embodiment, a total of ten pressing members 7 are used for each panel member P.

  In addition to the above main parts, in the illustrated embodiment, a total of ten “M10 × 40” bolts 6s, ten “M10” nuts 6n, “M10” per panel member P. Ten washers 11 are used and ten M10 turtle washers 12 are used. FIG. 5 shows these parts. Note that the turtle washer 12 has a shape in which a flat washer member is bent in the axial direction as shown in an enlarged view of a part of FIG.

  Thereby, the panel member P can be manufactured as follows. First, as shown in FIGS. 1 and 2, two fiber reinforced cement board members 4a and 4b are prepared, and the members 4a and 4b are overlapped, and one fiber reinforced cement board member 4a is provided with the other fiber. The reinforced cement plate member 4b is offset by a predetermined width Lo in the vertical direction Fv and the horizontal direction Fh. This form is used as a single fiber-reinforced cement board 4. If comprised in such a form, as shown in FIG.1 and FIG.6, since the adjacent panel member P ... can be overlapped only by predetermined width Lo ..., the clearance gap between adjacent panel members P ... There is an advantage that the flatness of the surface of the wall surface portion 2 can be easily secured.

  Further, as shown in FIG. 1, the two reinforcing members 5 and 5 having rigidity, that is, the two truss bars 5t and 5t are applied to the back surface 4r of the fiber reinforced cement board 4. In this case, the truss bars 5t and 5t are arranged apart from each other in parallel, and are arranged along the longitudinal direction of the fiber reinforced cement board 4. Then, as shown in FIGS. 1 and 2, two presser members 7 and 7 are inserted into a predetermined triangular frame portion 5tf of the truss bars 5t and 5t in this state, and the two truss bars 5t and 5t are inserted. By spanning them, the presser members 7, 7 are positioned at right angles to the longitudinal direction of the truss bars 5t, 5t.

  Next, as shown in FIGS. 2 and 5, the turtle washer 12 is attached to the bolt 6 s, the bolt 6 s is interposed between the two pressing members 7 and 7, and the bolt 6 s is further connected to the fiber reinforced cement board 4. Is inserted into the insertion hole 4h. Thereby, since the front-end | tip of the volt | bolt 6s protrudes to the surface 4f side of the fiber reinforced cement board 4, after attaching the washer 11, the nut 6n is screwed. Accordingly, the bolt 6s is inserted into the insertion hole 4h from the back surface 4r side of the fiber reinforced cement board 4, and the nut 6n is screwed on the front surface 4f side of the fiber reinforced cement board 4.

  When the nut 6n is tightened, the truss bar 5t can be fixed to the fiber reinforced cement board 4 as shown in the partially extracted enlarged sectional view of FIG. In addition, as shown in FIG. 1, the position fixed by the volt | bolt 6s and the nut 6n will be two positions in the vicinity of each truss bar | burr 5t and 5t in the site | part which has arrange | positioned the two pressing members 7 and 7. As shown in FIG. In addition, the position of the triangular frame portion 5tf... In the truss bar 5t that spans the two pressing members 7, 7 can be selected as desired, but it is preferably a plurality of positions and the truss bar 5t. Positions that are evenly distributed in the longitudinal direction are selected. In the case of illustration, as shown in FIG. 1, five positions were selected, and positions at equal intervals along the longitudinal direction of the truss bar 5t were selected.

  In this way, when the truss bar 5t (the bar member 5) is fixed to the fiber reinforced cement plate 4, the bar member 5 is pressed by the pressing member 7, and the pressing member 7 is fiber-reinforced using the bolt 6s and the nut 6n. If it is fixed to the cement board 4, even the muscle member 5 having a form that cannot be directly fixed by the bolt 6s and the nut 6n can be fixed via the pressing members 7. There is an advantage that the degree of freedom of selection can be improved, and the shape of the muscle member 5 to be used can be optimized.

  As described above, one panel member P shown in FIGS. 1, 2, and 5 can be obtained. Since the positions of the insertion holes 4h provided in the fiber reinforced cement board 4 are known in advance, each insertion hole 4h is formed in advance with respect to the fiber reinforced cement board member 4a as shown in FIG. . Furthermore, although it forms similarly also with respect to the fiber reinforced cement board member 4b, as above-mentioned, a position is changed only by the width | variety Lo ... to be offset.

  Further, the tip of the bolt 6s exposed on the surface 4f of the fiber reinforced cement board 4 and the nut 6n may be left as they are, but if necessary, for example, a synthetic resin cap 51 as shown in FIG. Appearance may be enhanced. In this case, the washer 11e to be used can be formed with a smaller diameter than the head of the bolt 6s.

  Next, a wall surface construction method according to this embodiment using the panel members P... Obtained in this way will be described with reference to FIGS.

  A concrete structure M shown as an example of a construction method is a retaining wall Cs shown in FIG. Therefore, the wall surface part 2 to be constructed becomes the wall surface Mw in the retaining wall Cs. Thus, if the wall surface part 2 is applied to the wall surface Mw in the retaining wall Cs, in particular, the panel member P ... according to the present invention is used instead of the precast concrete conventionally used for the wall surface part 2 of the retaining wall Cs. Since it can be used, there exists an advantage which can be implemented as an optimal form from a viewpoint which can enjoy the effect which concerns on this invention.

  When constructing the wall surface Mw, first, as shown in FIG. 6, necessary excavation and floor excavation are performed on the ground G serving as a construction site and the construction surface C serving as a cliff surface (inclined surface). The foundation N is constructed on top. When constructing the foundation N, first, the foundation crushed stone 31 is laid. Further, the foundation panel 21 is laid on the foundation crushed stone 31. Instead of laying the foundation panel 21, concrete may be cast to provide a leveled concrete part (21 e).

  On the other hand, a necessary number of the panel members P... Described above are prepared, and a necessary quantity of necessary supporting bars 8 f..., 8 s. Then, auxiliary auxiliary muscles 8c are installed. In the case of illustration, since the construction surface C is the rock mass Cr, the auxiliary auxiliary bars 8c... Are directly fixed to the rock mass Cr as differential bars. Next, the L-shaped auxiliary support muscles 8r are installed on the upper surface of the base panel 21, and the support portions of the auxiliary support muscles 8r and the distal end portions of the auxiliary auxiliary muscles 8c are connected to a predetermined coupler (illustration is a wire). Are bound by a binding tool). In addition, L-shaped main support muscles 8f are prepared, and one end of the main auxiliary muscles 8s is connected to a column portion of the main support muscles 8f with a predetermined connector (illustrated as an attachment bracket). The supporting muscles 8f are installed on the upper surface of the base panel 21, and the other ends of the main auxiliary muscles 8s and the support pillars of the auxiliary supporting muscles 8r are coupled by a predetermined coupling tool (illustrated using a wire). To do. Thereby, the supporting muscle structure 8 which combined main supporting muscle 8f ..., auxiliary supporting muscle 8r ..., main auxiliary muscle 8s ..., and auxiliary auxiliary muscle 8c ... can be constructed.

  And the prepared panel member P ... is placed side by side in the horizontal direction Fh on the foundation panel 21 one by one. Further, the truss bars 5t on the back surface of each panel member P are brought into contact with the support pillars of the main support bars 8f, and are coupled by a predetermined coupling tool (illustrated using a wire). Thereby, the installation construction of the panel member P ... in the first stage is completed.

  Next, on the first-stage panel members P ..., the panel members P ... constituting the second stage are placed side by side in the horizontal direction Fh, and the truss on the back surface of each panel member P ... is placed in the same manner as the first stage. The muscles 5t are brought into contact with the support pillars of the main support muscles 8f, and are coupled by a predetermined coupler. Hereinafter, the third and subsequent stages can be similarly constructed.

  Thereby, the wall surface part 2 standing at a predetermined angle with respect to the ground G can be constructed, and the wall surface part 2 is composed of the main support muscles 8f coupled to the truss muscles 5t (muscle members 5). .., 8s..., 8c. If the wall surface portion 2 is supported by the support bar structure 8 as described above, since the other construction portions other than the panel member P (wall surface portion 2) can use the conventional construction method as it is, the entire wall surface Mw Can be easily performed, and there is an advantage that reliability and low cost can be easily secured.

  Further, as described above, the fiber reinforced cement board 4 in each panel member P is composed of two fiber reinforced cement board members 4a and 4b, and one fiber reinforced cement board member 4a is connected to the other fiber reinforced cement board. Since the plate members 4b are configured to be offset by a predetermined width Lo in the vertical direction Fv and the horizontal direction Fh, respectively, when the panel members P are arranged in the vertical direction Fv and the horizontal direction Fh, they are adjacent to each other. The panel members P ... overlap each other by a predetermined width Lo .... As a result, as shown in FIGS. 1 and 6, there is no gap between adjacent panel members P, and the flatness of the surface of the wall surface portion 2 is easily ensured.

  Thereby, the constructed wall surface part 2 becomes the wall surface Mw in the retaining wall Cs, covers the construction surface C, and there is a gap S between the wall surface part 2 and the construction surface C. If 3 is filled, the retaining wall Cs used as the target concrete structure M can be constructed.

  Therefore, according to the construction method of the wall surface according to this embodiment, the fiber reinforced cement plate 4 is basically used as the panel member P, and the muscle members 5 are attached to the back surface 4r of the fiber reinforced cement plate 4. Since the rigidity as the panel member P is ensured by fixing, the weight per panel member P can be reduced to about 27 [kg]. Therefore, it is possible for even one worker to have it, and it is possible to dramatically improve the workability and transportability, such as the need to use or reduce the use of heavy machinery such as cranes during construction and transportation, and safety during construction. It can also contribute to improvement. Moreover, the fiber reinforced cement board 4 is configured as a thin panel material as compared with the precast concrete, and has flexibility, so that it can be easily cut and can be cut and processed. Therefore, the quality and low cost of the wall surface part 2 can be improved, such as the panel member P... Matching the shape and size of the wall surface Mw in the concrete structure M, and the wall surface part 2 can be easily obtained. it can.

  By the way, in the wall surface construction method according to the present embodiment, the bolt 6s is inserted from the back surface 4r side into the insertion hole 4h of the fiber reinforced cement plate 4 and the nut 6n from the front surface 4f side of the fiber reinforced cement plate 4. Is screwed. Therefore, for example, when the panel member P (fiber reinforced cement plate 4) is dirty or damaged, the existing fiber reinforced cement plate is removed by removing the nut 6n and the washer 11 on the surface 4f side as shown in FIG. 4 can be removed, and a new fiber reinforced cement board 4 can be attached or reattached after repairing, and the fiber reinforced cement board 4 can be easily replaced or repaired, and can be performed quickly and at low cost. There are advantages.

  Although the preferred embodiment has been described in detail above, the present invention is not limited to such an embodiment, and the detailed configuration, shape, material, quantity, numerical value, method, procedure, etc. Changes, additions and deletions can be made arbitrarily without departing from the scope.

  For example, the panel member P does not exclude the case where the wall surface part 2 is constructed by one sheet. Moreover, the case where two or more panel members P ... are arranged only in the vertical direction Fv to construct the wall surface portion 2 or the case where the wall surface portion 2 is arranged only in the horizontal direction Fh is not excluded. On the other hand, the case where the fiber reinforced cement board 4 is configured by superimposing the two fiber reinforced cement board members 4a and 4b is illustrated, but a single fiber reinforced cement board 4 may be used, or three or more sheets may be used. The fiber reinforced cement board 4 may be configured by overlapping the fiber reinforced cement board members 4a. Moreover, although the case where the muscle member 5 is pressed and fixed by the pressing members 7 is shown, it may be directly fixed to the fiber reinforced cement board 4 without using the pressing members 7. Furthermore, although the case where the truss muscle 5t was used as the muscle member 5, the muscle member 5 of various forms can be used. On the other hand, although the case where the wall surface portion 2 is supported by the support bar structure 8 is illustrated, the case where the wall surface portion 2 is supported by another support structure is not excluded. In particular, the auxiliary auxiliary muscles 8c in the support muscle structure 8 may be fixed by being sandwiched between the laminated sandbags 8.

  The wall surface construction method according to the present invention can be used when constructing wall surfaces in various concrete structures such as retaining walls.

  2: wall surface part, 3: concrete, 4: fiber reinforced cement board, 4f: surface of fiber reinforced cement board, 4r: back surface of fiber reinforced cement board, 4a: fiber reinforced cement board member, 4b: fiber reinforced cement board member, 4h ...: insertion hole, 5 ...: muscle member, 5t: truss bar, 6s ...: bolt, 6n ...: nut, 7 ...: presser member, 8: support bar structure, 8 ... f: support bar (main support bar) , 8r ...: support muscle (sub-support muscle), 8s ...: support muscle (main auxiliary muscle), 8c ...: support muscle (sub-assistant muscle), P ...: panel member, Fv: longitudinal direction, Fh: lateral direction, G: Ground, C: Work surface, S: Gap between wall surface and work surface, M: Concrete structure, Mp: Retaining wall, Mw: Wall surface, Lo ...: Predetermined width

Claims (7)

  One or two or more panel members are arranged in a vertical direction and / or a horizontal direction to construct a wall surface portion standing at a predetermined angle with respect to the ground, and the wall surface portion covers a predetermined construction surface and the wall surface portion. A wall surface construction method for constructing a wall surface of a concrete structure by filling concrete in a gap between the construction surface and one or more muscle members having rigidity on the back surface of the fiber reinforced cement board. By using a bolt inserted through an insertion hole provided in the fiber reinforced cement plate and a nut screwed to the bolt, the muscle member is fixed to the fiber reinforced cement plate to obtain the panel member, A wall surface construction method comprising constructing the wall surface portion by arranging the obtained one or more panel members in a vertical direction and / or a horizontal direction.   The fiber reinforced cement board has two fiber reinforced cement board members overlapped, and one fiber reinforced cement board member is offset from the other fiber reinforced cement board member by a predetermined width in the longitudinal direction and the lateral direction. The wall surface construction method according to claim 1, wherein the wall surface construction method is configured as follows.   When fixing the muscle member to the fiber-reinforced cement board, the muscle member is pressed by a pressing member, and the pressing member is fixed to the fiber-reinforced cement board using the bolt and the nut. Item 3. A method for constructing a wall surface according to item 1 or 2.   4. The wall surface construction method according to claim 1, wherein a truss bar is used for the bar member.   The bolt is inserted from the back side into the insertion hole of the fiber reinforced cement plate, and a nut is screwed from the surface side of the fiber reinforced cement plate. The construction method of the wall surface as described in 2.   The wall surface construction method according to any one of claims 1 to 5, wherein the wall surface portion is supported by a support bar structure coupled to the muscle member and a plurality of support bars combined.   The said wall surface part is applied to the wall surface in a retaining wall, The construction method of the wall surface in any one of Claims 1-6 characterized by the above-mentioned.

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