JP2019105051A - Underground double wall structure - Google Patents

Abstract

To suppress the deflection of a wall panel in an underground double wall structure where the upper and lower ends of the wall panels are fixed to form a double wall.SOLUTION: The present invention comprises a plurality of wall panels 20 consisting of metal sandwich panels erected inside an underground outer wall 11 and a pressure receiving member 100 disposed between the outer wall 11 and the wall panel 20 and fixed to one of them but not to the other. The pressure receiving member 100 has a variable length in the distance direction from the outer wall 11 to the wall panel 20 by variable length means in which the length can be fixed by fixing means, and is set in a state in which an end surface 111a opposite to a fixed side is in contact with the other, or in a state in which a gap is formed between the one and the other.SELECTED DRAWING: Figure 1

Description

  The present invention relates to the structure of an underground double wall built inside an outer wall in a basement floor of a building.

  In the basement floor of the building, double walls are provided on the inside of the outer wall in contact with the soil to prevent groundwater from entering the room and condensation on the indoor wall. The underground double wall is generally a wetted wall in which concrete blocks having moisture permeability are stacked. However, there is a problem that the indoor space is narrowed due to the thickness of the concrete block, and there is a problem in that the workability is poor. Therefore, a double wall has been proposed in which a plurality of shell edges extending vertically from the floor slab to the ceiling are provided along the outer wall with a gap, and the wall panels are fixed to these shell edges (Patent Document 1) .

Unexamined-Japanese-Patent No. 6-173279

  However, in the structure for fixing the wall panel to the body edge, the construction period from the installation of the body edge to the fixation of the wall panel is necessary, and the installation itself of the body edge is also time-consuming. There was a problem that it became high.

  The present invention has been made in view of the above circumstances, and its main object is to provide an underground double-walled structure in which the construction period can be shortened and the cost can be reduced.

  The underground double-walled structure according to the present invention is disposed between a wall panel on the inside of the underground outer wall, the upper end and the lower end of which are supported by a frame and erected, the outer wall and the wall panel An underground double wall structure comprising an outer wall and a pressure receiving member fixed to one of opposing surfaces of the wall panel and not fixed to the other, wherein the pressure receiving member is the variable length means A state in which the length is variable in the direction of the distance between the outer wall and the wall panel, and the length is fixable by the fixing means, and the end face opposite to the fixed side is in contact with the other, or It is characterized in that it is set in a state in which a gap is opened with the other. The wall panel of the present invention includes, for example, a metal sandwich panel in which a core material is sandwiched between two face materials made of a relatively thin plate material made of metal.

  In the structure of the present invention, a double wall is configured on the inside of the outer wall by the wall panel, and the inside of the wall panel is an indoor space. The pressure receiving member of the present invention disposed in the space between the outer wall and the wall panel supports the wall panel by the abutment of the front end face with the outer wall or wall panel, whereby the wall panel is restrained from bending and standing up. The set state is maintained. The present invention includes both the case where the front end surface of the pressure receiving member abuts against the outer wall or wall panel in advance and the case where the outer wall or wall panel is spaced from the outer wall or wall panel. When the front end surface of the pressure receiving member is spaced from the outer wall or wall panel, the wall panel may bend by the distance, but when the front end surface abuts against the outer wall or wall panel Movement of the wall panel to the outer wall side is blocked and deflection is suppressed. Therefore, it is preferable that the distance be as small as possible.

  According to the present invention, the wall panel is supported by the pressure receiving member in a state in which the deflection is suppressed. The pressure receiving member is fixed to the outer wall or wall panel, and the length of the pressure receiving member is appropriately adjusted in accordance with the distance between the outer wall and the wall panel. The pressure receiving member can be smaller in size and scale of construction as compared with the barrel edge, and the structure can be simplified. Therefore, it is possible to reduce labor and time for constructing the support structure of the wall panel, thereby shortening the construction period and reducing the cost.

  The pressure receiving member of the present invention is not fixed to both the wall panel and the outer wall, but is fixed to only one of them. Therefore, when the outer wall vibrates due to an earthquake or the like, in particular, the in-plane vibration of the outer wall is not transmitted to the wall panel via the pressure receiving member, and the wall panel is affected by the in-plane vibration of the outer wall. The risk of deformation or damage is prevented. In addition, deformation and damage of the pressure receiving member are also prevented. In addition, when there is unevenness on the outer wall, the unevenness can be absorbed by appropriately adjusting the length of the pressure receiving member according to the distance between the outer wall and the wall panel. It can be properly installed without interfering with the wall panel.

  The pressure receiving member according to the present invention comprises a base member fixed to the one, and a movable member mounted on the base member so as to be movable in the spacing direction via the length varying means. It can be mentioned.

  The length variable means of the present invention may be a screw which is provided on the base member and the movable member and whose length in the interval direction is variable by rotating the movable member. Further, the length varying means of the present invention may include a guide means for slidably supporting the movable member in the spacing direction with respect to the base member.

  The fixing means of the present invention may be a screw member for fastening the movable member to the base member. Further, the fixing means of the present invention is provided on an engaging portion provided on one of the base member and the movable member and the other, and in a state in which the engaging portion is engaged, the length is extended And, the sliding in the reduction direction of the length restricts the engaged portion.

  The present invention includes a mode in which at least the tip surface of the pressure receiving member is made of a shock absorbing material. According to this aspect, the shock absorbing material absorbs the impact when the pressure receiving member abuts on the outer wall or the wall panel, and as a result, the occurrence of deformation, damage, breakage or the like of the wall panel is suppressed.

  In the present invention, the wall panel includes an upper end portion and a lower end portion which are fitted and supported in the groove of the rail-like support member having a groove provided in the housing. In such a mode, the wall panel is formed by first inserting the upper end of the wall panel into the groove of the upper support member from the indoor side, and then dropping the lower end of the wall panel into the groove of the lower support member. It can stand up. In this case, there is a clearance of the insertion margin between the upper end of the wall panel and the groove of the upper support member. For this reason, when vertical vibration is transmitted to the wall panel due to an earthquake, etc., the wall panel can move freely in the vertical direction to some extent without restraint due to the gap of the upset. As a result, deformation of the wall panel The occurrence of damage, destruction, etc. is suppressed.

  According to the present invention, it is possible to provide an underground double wall structure which can shorten the construction period and reduce the cost.

It is a longitudinal cross-sectional view which shows the structure of the double wall which concerns on one Embodiment of this invention. It is II arrow line view of FIG. FIG. 1 is a perspective view of a double wall structure of one embodiment. It is a cross-sectional view which shows the bonded structure of the wall panel which comprises a double wall. FIG. 5 is a cross-sectional view showing the wall panels and columns at both ends. It is a disassembled perspective view of the pressure receiving member which concerns on one Embodiment. It is a side view of the pressure receiving member. It is a longitudinal cross-sectional view which shows the form by which the pressure receiving member was fixed to the wall panel. FIG. 7 is a cross-sectional view of another embodiment of a wall panel. It is a figure which shows other embodiment of a pressure receiving member, Comprising: (a) Side view in an installation state, (b) It is a bottom view. It is a perspective view showing other embodiments of a pressure receiving member. It is a perspective view showing other embodiments of a pressure receiving member. It is a longitudinal cross-sectional view of the pressure receiving member shown in FIG.

[1] One Embodiment Hereinafter, one embodiment of the present invention will be described with reference to the drawings.
1 to 3 show a basement floor in which an underground space (hereinafter referred to as indoor) 1 is formed by a concrete housing 10 constructed in the ground and a double wall 2 inside the housing 10. The frame 10 has an outer wall 11, a floor slab 12, an upper floor slab 13, and a column 14. As shown in FIG. 2, the double wall 2 is configured such that a plurality of wall panels 20 are erected between the columns 14 and adjacent wall panels 20 are joined. The double wall 2 is constructed with a predetermined space (about 100 to 400 mm) between the double wall 2 and the outer wall 11.

  A weir 121 is formed parallel to the outer wall 11 at a position spaced a predetermined distance from the outer wall 11 of the floor slab 12, and a drainage groove 15 is formed between the weir 121 and the outer wall 11 by the weir 121 . Water such as ground water that has leaked from the outer wall 11 flows through the drainage groove 15, and the water is recovered and processed. The wall panel 20 is supported by a rail (supporting member) 30 whose lower end is fixed on the ridge 121 and supported by a rail (supporting member) 40 whose upper end is fixed to the upper floor slab 13. The wall panel 20 is erected on the weir 121. The pressure receiving member 100 according to the present invention is disposed between the wall panel 20 and the outer wall 11.

[1-1] Configuration of Wall Panel As shown in FIG. 4, the wall panel 20 is configured of a metal sandwich panel in which a core material 22 is sandwiched between two metal face materials 21. The surface material 21 is a flat thin plate made of metal, and for example, a color steel plate, a fluorine steel plate, a polyvinyl chloride steel plate, a gal barium steel plate (registered trademark), a stainless steel plate such as SUS304, or the like is used. The thickness of the metal plate constituting the face material 21 is, for example, about 0.27 to 1.2 mm. It is preferable that at least the outer surface of the facing 21 is subjected to antifungal and antibacterial treatment by coating.

  The core material 22 is made of a lightweight resin foam molded into a panel having a predetermined thickness. Among them, those having heat insulation properties or those having heat resistance and nonflammability are preferable. As a material having thermal insulation, a foam of resin such as polystyrene resin is used, and preferably, one having high thermal insulation due to difficulty in absorbing water. Moreover, as a material which has nonflammability with heat insulation, foams, such as a calcium carbonate and a phenol resin, polyurethane foam, such as a rigid poly isocyanurate foam, etc. are suitable.

  The core 22 of this type is adhered to the inner surface of the facing 21 by an appropriate adhesive such as a urethane adhesive or an epoxy adhesive. The overall dimensions of the wall panel 20 are, for example, about 900 mm in width, about 1800 to 6000 mm in height, and about 30 to 50 mm in thickness. One wall panel 20 having a height that fits between the upper and lower rails 30, 40 is used.

  The structure for joining the joining end faces, which are the side surfaces of the wall panel 20, is formed by concavo-convex engagement of the groove-like recess 201 and the ridge 202 formed along the longitudinal direction in the core member 22, and is not particularly fixed. In addition, as shown in FIG. 5, as for the wall panel 20 of the both ends adjacent to the pillar 14, that by which the end surface by the side of the pillar 14 was processed into a flat surface is used. A certain amount of gap (about 30 mm) is opened between the flat side surface and the column 14.

  As shown in FIG. 1, the rails 30 and 40 are substantially U-shaped in cross section having a length to be installed between the pillars 14 and the grooves 31 and 41 are respectively formed in the inside. Are fixed to the weir 121 and the upper floor slab 13 by the anchor screw 51, respectively. The front and rear plates forming the grooves 31 and 41 in the rails 30 and 40 have heights lower than those on the back side (the outer wall 11 side) of the plates on the near side (indoor 1 side). There is.

  With the wall panel 20 facing the outer wall 11 with respect to the upper and lower rails 30, 40, the upper end is first inserted into the groove 41 of the upper rail 40, and then the lower end is inserted into the groove 31 of the lower rail 30. It is possible to make it with the technique of dropping it into The wall panel 20 rests within the lower rails 30 and is supported upright without engaging and disengaging the upper and lower rails 30,40. In this state, there is a clearance of the insertion margin between the upper end surface of the wall panel 20 and the lower surface of the groove 41 of the upper rail 40. The lower rail 30 is disposed at the front end of the weir 121 (the end on the indoor 1 side), so that the front of the wall panel 20 is substantially flush with the front of the weir 121.

[1-2] Pressure receiving member As shown in FIGS. 6 and 7, the pressure receiving member 100 has a substantially drum-like shape as a whole, and the base member 110 and the movable member 150 are combined in an axially dividable manner. is there.

  The base member 110 has a substantially conical shape, and has a disk-shaped fixed plate portion 111 at one end in the axial direction, and a cylindrical shape having an internal thread (not shown) on the inner peripheral surface from the center of one surface of the fixed plate portion 111. A female screw portion (length variable means) 113 is coaxially projectingly formed. On the outer surface of the base member 110, a plurality of ribs 114 extending from the outer peripheral surface of the female screw portion 113 to the fixing plate portion 111 are integrally formed at equal intervals in the circumferential direction. The rib 114 causes the base member 110 to have a substantially conical appearance.

  The movable member 150 is formed in a bolt shape and has a disk-shaped receiving plate portion 151 corresponding to a bolt head at one end in the axial direction, and a male screw 152 is formed on the outer peripheral surface from the center of one surface of the receiving plate portion 151. An externally threaded portion (variable length means) 153 is coaxially projectingly formed. A stopper ring (fixing means) 155 is screwed into the male screw 152.

  The pressure receiving member 100 is assembled by screwing the male screw 152 of the movable member 150 into the female screw portion 113 of the base member 110. The pressure receiving member 100 has a length corresponding to a screwing amount of the male screw portion 153 into the female screw portion 113, that is, an outer end surface 111a of the receiving plate 151 of the movable member 150 from an outer end surface 111a of the fixed plate 111 of the base member 110. The length up to the tip surface 151a can be adjusted steplessly. In addition, when the stopper ring 155 is rotated and brought into contact with the base member 110 and further rotated toward the base member 110 from that state, the base member 110 and the movable member 150 are fastened and relative rotation between the both is It does not happen and the length is fixed. The length adjustment by the stopper ring 155 completes the adjustment of the length of the pressure receiving member 100.

  The material of the base member 110, the movable member 150 and the stopper ring 155 constituting the pressure receiving member 100 is optional, but it is preferably made of resin from the viewpoint of preventing rusting, corrosion, deterioration and the like.

[1-3] Construction of Double Wall Hereinafter, a construction example of the double wall 2 will be described. First, the lower rail 30 is fixed on the weir 121 by the anchor screw 51, and the upper rail 40 is fixed to the upper slab 13 by the anchor screw 51.

  Next, the wall panels 20 are erected between the rails 30, 40 sequentially from the one pillar 14 side between the pillars 14, and the adjacent wall panels 20 are joined by joining the joint ends as shown in FIG. The pressure receiving member 100 is installed between the outer wall 11 and the wall panel 20 while continuing. The pressure receiving member 100 allocates at least one per wall panel 20. The wall panel 20 inserts the upper end portion of the wall panel 20 facing the outer wall 11 on the indoor side 1 of the ridge 121 into the groove 41 of the upper rail 40 as described above, and then the lower end portion of the lower rail 30. By dropping it into the groove 31, it can be erected between the upper and lower rails 30, 40.

  The pressure receiving member 100 is installed by fixing the fixing plate portion 111 of the base member 110 to the outer wall 11. For fixing the base member 110 to the outer wall 11, appropriate means may be used depending on the material of the outer wall 11 and the base member 110. For example, bonding using an adhesive or sealing agent of various resins or an adhesive using a hot melt gun Screw fixation with an anchor screw etc. is mentioned. Between the outer wall 11 and the wall panel 20, the pressure receiving member 100 in which the fixed plate portion 111 of the base member 110 is fixed to the outer wall 11 rotates the movable member 150 with respect to the base member 110. The length of the interval direction of is adjusted.

  The installation position of the pressure receiving member 100 is preferably a position corresponding to the vicinity of the center of one wall panel 20. Moreover, although the number of the pressure receiving members 100 is arbitrary, for example, it is set to about 1 to 3 per wall panel 20. FIG. 2 illustrates the installation position of the pressure receiving member 100, in which the pressure receiving member 100 is added near the center of each wall panel 20 and provided at the boundary between adjacent wall panels 20. It is distributed so as to be generally evenly distributed to the whole.

  The installation position and the number of the pressure receiving members 100 are appropriately determined according to the size (height and width) of the wall panel 20. Before or after the pressure receiving member 100 is fixed to the outer wall 11, its length is adjusted to a length that allows the receiving plate portion 151 to abut against the wall panel 20, or slightly shorter than that length. Then, a slight gap is adjusted between the receiving plate portion 151 and the wall panel 20.

  Moreover, as a method of fixing the pressure receiving member 100 to the outer wall 11 and installing it between the outer wall 11 and the wall panel 20, before erecting the wall panel 20, in advance at an appropriate location on the entire outer wall 11 between the pillars 14 There is a method of fixing all the required pressure receiving members 100 and then sequentially installing a plurality of wall panels 20. In addition to this, after installing one wall panel 20, the method of inserting the pressure receiving member 100 on the back side of the wall panel 20 from the side and fixing it to the outer wall 11 may be repeated. it can.

  In the latter method among the above, the length of the pressure receiving member 100 is previously made shorter than the distance between the outer wall 11 and the wall panel 20 and fixed to the outer wall 11, and after fixing, the movable member 150 is rotated to lengthen To abut the wall panel 20, or adjust the length of the gap between the wall panel 20 and the support plate portion 151. Thus, the length of the pressure receiving member 100 can be properly matched to the distance between the outer wall 11 and the wall panel 20. In this method, since the back side of the wall panel 20 to be installed last between the pillars 14 is closed, only the pressure receiving member 100 corresponding to the last wall panel 20 is the outer wall before installing the wall panel 20. It will be fixed at 11.

  As described above, the double wall 2 is constructed by the plurality of wall panels 20 erected on the weir 121 between the pillars 14, and the plurality of pressure receiving members 100 are installed between the double wall 2 and the outer wall 11 . In addition, in order to inspect and ventilate the drainage groove 15, it is preferable to provide an inspection port (not shown) with a plurality of wall panels 20 between the columns 14 in a pair of states.

  Also, as shown in FIG. 5, a gap is opened between the wall panels 20 at both ends adjacent to the pillar 14 and the pillar 14, but the clearance has a height that covers the rails 30 and 40. Each is closed by a parting material 60, 70, which maintains a good appearance. Construction of the parting materials 60 and 70 is performed in the following manner.

  Assuming that the wall panel 20 is installed from the side of the right pillar 14 to the left in FIG. 5, first, the parting member 60 is fixed to the side of the inner side of the right pillar 14 (the side on which the wall panel 20 is installed) . The parting member 60 is a plate member having an L-shaped cross section, and the outer corner is aligned with the outer corner of the column 14 and fixed along the column 14. On the other hand, the clip plate 80 is fixed to the side surface on the inner surface side of the left column 14 with a screw 52. The fixed position of the clip plate 80 is a predetermined depth position from the front end of the column 14. The clip plate 80 is a plate member having elasticity, and an L-shaped clip portion 81 is formed by bending at the front end portion (lower end portion in FIG. 5) and rising obliquely inward. A plurality of clip plates 80 are fixed to the side surface of the column 14 with a gap therebetween at the top and bottom.

  Next, a plurality of wall panels 20 are sequentially erected and joined between the pillars 14, but the rightmost wall panel 20 erected first inserts the end on the back side of the parting material 60, and the right pillar 14 Make a gap between Thus, the gap is closed by the parting material 60. The front surface of the wall panel 20 and the back surface of the parting member 60 are in contact but not fixed. Then, when the wall panel 20 on the left side, that is, the leftmost side is erected, a gap is opened between the wall panel 20 and the pillar 14 on the left side, and the gap is closed by the parting material 70.

  The parting member 70 is a plate member having an L-shaped cross section, and a hook portion 71 which is bent at an acute angle toward the near side is formed at an end on the far side. The hook portion 71 is elastically engaged with the clip portion 81 of the clip plate 80, and when the parting member 70 is inserted along the inner surface of the column 14 into the back side, the hook portion 71 is It enters into the clip portion 81 of the clip plate 80 and elastically engages. In that state, the outer corner of the parting material 70 matches the outer corner of the column 14, and the end inner surface on the front side of the parting material 70 contacts the surface of the wall panel 20. Thereby, the gap between the pillar 14 and the wall panel 20 is closed. The contact surface between the parting material 70 and the column 14 is coated and adhered with an adhesive or a sealing agent.

  Note that, instead of fixing the parting material 60 to be installed first to the column 14 with the screws 52, the parting material 60 may be bonded and fixed with an adhesive, a sealing agent, or the like, similarly to the parting material 70. Furthermore, the method of fixing the parting material to the pillar by adhesion only in this way is also applicable to the parting material of the side to be finally installed (left side in FIG. 5), in which case, instead of the parting material 70. The parting material 60 can be adhered to the column 14 with an adhesive, a sealing agent or the like. That is, the gap between both the pillar 14 and the wall panel 20 can be closed by the see-through member 60. In this embodiment, the parting material 70 and the clip plate 80 become unnecessary, so that the number of types of parts can be reduced.

[1-4] Double-Walled Structure and Effect Thereof According to the double-walled structure of the present embodiment, the double-walled wall 2 is constructed inside the outer wall 11 by the plurality of wall panels 20. The further inside is the indoor 1. The pressure receiving member 100 fixed to the outer wall 11 and installed in the space between the outer wall 11 and the wall panel 20 supports the wall panel 20 by the distal end surface 151 a abutting the wall panel 20, thereby the wall panel 20. The deflection to the outer wall 11 side is suppressed, and the standing condition is maintained.

  When the front end surface 151a of the receiving plate portion 151 is slightly spaced from the wall panel 20, the wall panel 20 may be bent toward the outer wall 11 by the gap, but the wall When the panel 20 abuts on the receiving plate portion 151, the movement of the wall panel 20 to the outer wall 11 side is blocked, and the bending is suppressed. Installation of the pressure receiving member 100 is effective when the wall panel 20 is relatively high in height and flexible from the viewpoint of suppressing deflection, and is particularly effective when installing a wall panel having a height of 3.5 m or more, for example. is there.

  According to the double wall structure of the present embodiment, the wall panel 20 is supported by the pressure receiving member 100 in a state in which the bending is suppressed, and the standing state is maintained. The pressure receiving member 100 is fixed to the outer wall 11, and the length of the pressure receiving member 100 is appropriately adjusted according to the distance between the outer wall 11 and the wall panel 20, and the construction is completed. The pressure receiving member 100 can be smaller in size and size than the conventional cylinder rim, and can be simplified in structure. Therefore, it is possible to reduce the labor and time for constructing the support structure of the wall panel 20 as compared with the prior art, thereby shortening the construction period and reducing the cost.

  Further, the pressure receiving member 100 is not fixed to the wall panel 20. In other words, the outer wall 11 and the wall panel 20 are not connected by the pressure receiving member 100 and the edge is cut. Therefore, when the outer wall 11 vibrates due to an earthquake or the like, in particular, the in-plane vibration of the outer wall 11 is not transmitted to the wall panel 20 through the pressure receiving member 100. Therefore, the wall panel 20 is prevented from being deformed or damaged due to the influence of the vibration in the in-plane direction of the outer wall 11, and the pressure receiving member 100 is also prevented from being deformed or damaged. In addition, when the outer wall 11 has unevenness, the unevenness can be absorbed by appropriately adjusting the length of the pressure receiving member 100 in accordance with the distance between the outer wall 11 and the wall panel 20. The member 100 can be properly installed without interfering with the outer wall 11 or the wall panel 20.

  In addition, the surface on the indoor 1 side of the outer wall 11 is susceptible to the occurrence of efflorescence of concrete due to the influence of water such as ground water leakage or condensation, but the outer wall 11 can not be seen from the indoor 1 side by the double wall 2 Therefore, the appearance of white flower and water spots can not be seen, and the aesthetics are maintained. Moreover, the wall panel 20 can be comprised as a finishing material of the inner wall of indoor 1 inside.

  In addition, even if molds, stains and the like occur on the outer wall 11, the double wall 2 in the indoor 1 can suppress direct influence from such molds and stains and the like. Further, when a material having heat insulation is used for the core material 22 of the wall panel 20 and the rails 30, 40, an advantage is obtained that condensation is less likely to occur on the wall panel 20, and a material having nonflammability is used. In the case where it is present, the non-combustibility can be improved. Furthermore, since the wall panel 20 is made of metal and has high durability, the double wall 2 also has high durability.

  In addition, the upper and lower ends of the wall panel 20 are simply fitted into the rails 30 and 40, and a gap of the insertion margin is provided between the upper end surface and the lower surface of the groove 41 of the upper rail 40. I love you. Therefore, when vibration in the vertical direction is transmitted to the wall panel 20 due to an earthquake or the like, the wall panel 20 can freely move in the vertical direction to some extent without restraint from the rails 30 and 40 due to the clearance of the upset. In addition to this, a gap is provided between the wall panels 20 and the pillars 14 at both left and right ends, and the wall panels 20 are adjacent to the pillars 14 because they are not fixed only by concavo-convex fitting. Each wall panel 20 is independently rockable without being restrained by the wall panels 20. As a result of these, even when each wall panel 20 is subjected to strong vibration during an earthquake or the like, the load of stress is unlikely to be applied, and the occurrence of deformation, damage, breakage or the like is suppressed.

[2] Other Embodiments [2-1] Form of Fixing Pressure Receiving Member to Wall Panel The present invention replaces the form in which the pressure receiving member 100 is fixed to the outer wall 11 as in the above embodiment. As shown, it includes a form for fixing the pressure receiving member 100 to the wall panel 20. In this embodiment, the length of the pressure receiving member 100 is set such that the tip end surface 151a abuts on the outer wall 11, or as shown in FIG. For fixing the pressure receiving member 100 to the wall panel 20, the fixing plate portion 111 of the base member 110 is fixed by a fixing means suitable for the surface member 21 on the back surface side of the wall panel 20. As a fixing means, the same means as the fixing means to the outer wall 11 mentioned above is mentioned, for example. Further, when fixing the pressure receiving member 100 to the wall panel 20, the pressure receiving member 100 is fixed to the wall panel 20 in advance before the wall panel 20 is erected between the rails 30, 40, or the wall panel 20 is erected. Then, the pressure receiving member 100 is fixed to the back surface of the wall panel 20. Although the fixed position of the pressure receiving member 100 to the wall panel 20 is determined according to the size of the wall panel 20, it is a position where the bending is effectively suppressed as in the above embodiment.

  Also in this embodiment, the wall panel 20 is restrained from being bent by the pressure receiving member 100 in the same manner as in the above embodiment, and the standing state is maintained. Further, the structure that the pressure receiving member 100 is not fixed to the outer wall 11 prevents the wall panel 20 and the pressure receiving member 100 from receiving the influence of the vibration in the in-plane direction of the outer wall 11 and absorbs the unevenness of the outer wall 11 The advantages are obtained as in the above embodiment.

[2-2] Shock Absorbability The present invention includes a mode in which at least the tip surface of the movable member 150 in the pressure receiving member 100 is made of a shock absorbing material. This form is made by, for example, sticking a flexible or elastic material such as rubber on the tip end surface 151a of the receiving plate portion 151. According to this, the impact when the wall panel 20 or the outer wall 10 abuts on the pressure receiving member 100 is absorbed by the impact absorbing material, and the deformation, damage or the like of the wall panel 20 or pressure receiving member 100 is suppressed.

[2-3] Wall panel exerting anti-glare effect As shown in FIG. 4, the surface material 21 constituting both surfaces of the wall panel 20 of the above embodiment is flat, but as shown in FIG. May be formed of a plate material formed in a corrugated plate shape. In this case, the face material 21 is erected in a state in which peaks and valleys extend in the vertical direction (vertical direction). For example, a double wall may be applied to an underground parking lot, but in such a case, if the facing 21 uses a corrugated wall panel 20, the reflection by the headlights of the used vehicle is suppressed, which is safe. It is preferable in terms of

  Further, in the wall panel 20 shown in FIG. 9, a groove 203 having a semicircular arc shape in cross section is formed along the longitudinal direction on the side surface of the core member 22 constituting the joint end face of the wall panels 20. Are combined to form a drainage passage 204 having a circular cross section at the boundary. Thus, when the water invading the boundary of the wall panel 20 reaches the drainage channel 204 due to the formation of the drainage channel 204, it becomes difficult to cause further penetration into the core material 22 and the water is discharged from the drainage channel 204. It falls through and drains. As a result, corrosion of the wall panel 20 and the generation of mold can be suppressed.

[2-4] Another Embodiment of Pressure Receiving Member Another embodiment of the pressure receiving member of the present invention will be described with reference to FIGS.
[2-4-1] Other embodiment of pressure receiving member 1
A pressure receiving member 200 shown in FIG. 10 is formed by slidably combining a first member 210 and a second member 220 having the same shape, and the length is variable by sliding.

  The first member 210 is formed by bending the receiving plate 212 at one end of the rectangular slide plate 211 at a right angle, and the second member 220 is received at one end of the rectangular slide plate 221 The plate portion 222 is formed to be bent at a right angle. A pair of upper and lower guide slits 213, 223 extending in the longitudinal direction is formed in each slide plate portion 211, 221, and the slide plate portions 211, 221 are overlapped so that the guide slits 213, 223 coincide with each other. It is held by a screw 240 and a nut 250 passing through the guide slits 213, 223. The guide slits of the present invention are constituted by the guide slits 213 and 223 and the screw 240, and the fixing unit of the present invention is constituted by the screw 240 and the nut 250.

  According to the pressure receiving member 200, the guide slit 213, 223 through which the screw 240 passes in a direction in which the screw 240 is loosened and the first member 210 and the second member 220 move closer to or away from each other. The length is adjusted by sliding along and the length is fixed by tightening the screw 240.

  The pressure receiving member 200 fixes the receiving plate portion 212 (222) of either the first member 210 or the second member 220 to either the outer wall 11 or the wall panel 20, and has a length of the outer wall 11 and the wall The space between the outer wall 11 and the wall panel 20 is installed by adjusting according to the space between the panels 20. In the installed state, the receiving plate portion 222 (212) of the non-fixed member 220 (210) abuts on the wall panel 20 or the outer wall 11 or is installed at a slight distance.

[2-4-2] Another embodiment of the pressure receiving member
A pressure receiving member 300 shown in FIG. 11 is formed by slidably combining a first member 310 and a second member 320 having the same shape, and has a variable length by sliding.

  The first member 310 is formed by bending a pair of left and right receiving plates 312 at one end of a U-shaped slide plate 311 in cross section, and the second member 320 is a U-shaped slide plate 321 A pair of left and right receiving plates 322 are formed to be bent at a right angle at one end of the first member 310, and the slide plate 321 of the second member 320 is relatively slidable inside the slide plate 311 of the first member 310. It is fitted. And, through the guide slits 323 formed in the left and right side plate parts 324 provided in the slide plate part 321 of the second member 320, screws 325 passing through the left and right side plate parts 314 provided in the slide plate part 311 of the first member 310. And the nut 326 is screwed into the screw 325. The guide slit 323 and the screw 325 constitute the guide means of the present invention, and the screw 325 and the nut 326 constitute the fixing means of the present invention.

  According to the pressure receiving member 300, in a state where the screw 325 and the nut 326 are loosened, the first member 310 and the second member 320 are screwed in the direction in which the first member 310 and the second member 320 move closer to or away from each other. The length is adjusted by sliding along a guide slit 323 through which 325 passes, and the length is fixed by tightening a nut 326.

  The pressure receiving member 300 fixes the receiving plate portion 312 (322) of either the first member 310 or the second member 320 to either the outer wall 11 or the wall panel 20, and the length is the outer wall 11 and the wall The space between the outer wall 11 and the wall panel 20 is installed by adjusting according to the space between the panels 20. In the installed state, the receiving plate portion 322 (312) of the non-fixed member 320 (310) is brought into contact with the wall panel 20 or the outer wall 11 or installed at a slight distance.

[2-4-3] Another embodiment of pressure receiving member, part 3
The pressure receiving member 400 shown in FIG. 12 and FIG. 13 is configured by the first member 410 and the second member 420 being slidably combined with each other, and the length is variable by sliding.

  The first member 410 is formed by bending right and left a pair of left and right pair and a receiving plate 412 extending downward in FIG. 12 at one end of a slide plate 411 having a U-shaped cross section, and the second member 420 has a rectangular cross section. A pair of left and right pairs and a receiving plate 422 extending upward in FIG. 12 are formed by bending at right angles to one end of the slide plate 421 having a shape, and the slide plate 421 of the second member 420 of the first member 410 is formed. Relatively slidably fitted into the inside of the slide plate portion 411. The slide plate portions 411 and 421 constitute the guide means of the present invention.

  A plate-like stopper 414 is rotatably supported above the slide plate portion 411 of the first member 410 via a pivot shaft 413. A claw portion (engaging portion) 414 a is formed at the tip of the stopper 414. The stopper 414 is biased toward the lower second member 420 by a spring 415 shown in FIG. In the upper plate portion 423 of the second member 420, a plurality of slits (engaged portions) 423a extending in a direction perpendicular to the sliding direction are formed at equal intervals in the sliding direction. The spacing between the slits 423a is equal to the width of the slits 423a. The claw portion 414a of the stopper 414 is inserted into and engaged with any one slit 423a in a state of being inclined toward the second member 420. The stopper 414 and the slit 423a constitute the fixing means of the present invention.

  According to the pressure receiving member 400, when the first member 410 and the second member 420 slide in the separating direction, the claw portion 414a of the stopper 414 comes out of the slit 423a, and the stopper 414 slightly pivots upward. After that, the stopper 414 slides in the direction in which the length extends while repeating the fine swing, such as turning downward and entering the next slit 423a. On the other hand, even if the first member 410 and the second member 420 are moved in the direction in which the first member 410 and the second member 420 approach each other to shorten the length, the claw portion 414a is engaged with the slit 423a and does not move, thereby shortening the length. You can not slide in the direction. In the case of shortening the length, it is possible to rotate the stopper 414 upward to separate the claw portion 414a from the second member 420 and release the engagement. That is, when the claw portion 414a of the stopper 414 of the first member 410 engages with the slit 423 of the second member 420, the sliding in the extension direction of the length is permitted, and the slide in the reduction direction of the length Is regulated.

  The pressure receiving member 400 fixes the receiving plate portion 412 (422) of either the first member 410 or the second member 420 to either the outer wall 11 or the wall panel 20, and the length is the outer wall 11 and the wall The space between the outer wall 11 and the wall panel 20 is installed by adjusting according to the space between the panels 20. In the installed state, the receiving plate portion 422 (412) of the non-fixed member 420 (410) abuts on the wall panel 20 or the outer wall 11 or is installed at a slight distance. According to the pressure receiving member 400, since the length is fixed by engaging the claw portion 414a of the stopper 414 of the first member 410 with the slit 423 of the second member 420, for example, a screw for fixing the length This eliminates the need for work such as fastening, thus improving usability.

  Any one of the first and second members of the pressure receiving members 200, 300, 400 is the fixed side, ie, the base member of the present invention, and the other is the movable side, ie, the movable member of the present invention. It is.

  The present invention is applicable to underground double walls.

DESCRIPTION OF SYMBOLS 2 ... Double wall 10 ... Housing 11 ... Outer wall 12 ... Floor slab 13 ... Upper floor slab 14 ... Column 20 ... Wall panel 30, 40 ... Rail (supporting member)
31, 41 ... groove 100 ... pressure receiving member 110 ... base member 113 ... internal thread (variable length means)
150 · · · movable member 151a · · · · tip surface 153 · · · · male screw portion (variable length means)
155: Stopper ring (fixing means)
213, 223, 323 ... Guide slit (guide means)
240, 325 ... screw (screw member, guide means, fixing means)
250, 326 ... Nuts (screws, fixing means)
411, 421 ... slide plate portion (guide means)
414 ... stopper (fixing means)
414a ... claw part (engagement part)
423a ... slit (engaged portion)

Claims (8)

A wall panel provided with the upper end and the lower end supported by the frame and standing inside the underground outer wall;
An underground double wall structure comprising a pressure receiving member disposed between the outer wall and the wall panel and fixed to one of the opposing surfaces of the outer wall and the wall panel and not fixed to the other. ,
The pressure receiving member has a variable length in the distance direction from the outer wall to the wall panel by a variable length means, and the length can be fixed by a fixing means, and a tip surface opposite to the fixed side An underground double-walled structure characterized in that it is set in a state where it abuts on the other side or a state in which a gap is formed between the other side and the other side.   The pressure receiving member includes a base member fixed to the one, and a movable member mounted on the base member so as to be movable in the spacing direction via the length variable means. The underground double wall structure according to claim 1.   The said length variable means is a screw provided in the said base member and the said movable member, and the length of the said spacing direction can be changed by rotating this movable member, It is characterized by the above-mentioned. Underground double wall structure.   The underground double wall structure according to claim 2, wherein the variable length means includes guide means slidably supporting the movable member with respect to the base member in the spacing direction.   The underground double wall structure according to any one of claims 1 to 4, wherein the fixing means is a screw member for fastening the movable member to the base member.   The fixing means is provided on the other of an engaging portion provided on one of the base member and the movable member, and the sliding in the extension direction of the length is permitted when the engaging portion is engaged. The underground double wall structure according to claim 4, further comprising: an engaged portion that restricts the slide in the direction of reduction of the length.   The underground double wall structure according to any one of claims 1 to 6, wherein at least the front end surface of the pressure receiving member is made of an impact absorbing material.   8. The wall panel according to any one of claims 1 to 7, wherein the upper end and the lower end are fitted and supported in the groove of the rail-like support member having a groove provided in the housing. Underground double-walled structure described in.

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