JP2007107243A - Earth retaining panel joining structure of shaft - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an earth retaining panel joining structure of a shaft capable of joining a vertical earth retaining panel by moving a horizontal frame. <P>SOLUTION: In this joining structure of a widening part earth retaining panel 3 for the ceiling in the shaft and the vertical earth retaining panel 19, an insertion part 21 composed of a cutout part or a through-hole is arranged in an upper flange 20 of the vertical earth retaining panel 19. A support surface 9a in a support member 9 insertable into the insertion part 21 is arranged in a position separated downward a little from a top plate 7c arranged on the widening part earth retaining panel 3 for the ceiling in the widening part earth retaining panel 3 for the ceiling. An upper flange arranging space is arranged between the support surface 9a and a top plate under surface, and the upper flange 20 of the vertical earth retaining panel 19 is arranged in and joined to the upper flange arranging space by horizontally sliding the vertical earth retaining panel 19 in a state of inserting the support member 9 of the widening part earth retaining panel 3 for the ceiling into the insertion part of the vertical earth retaining panel 19. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a joining structure of retaining panels constituting a shaft, and more particularly to a joining structure of a transverse retaining panel and a longitudinal retaining panel.

  Conventionally, as a joint structure in the vertical direction of the earth retaining panel, (1) a liner plate in which a long hole in the shaft radial direction is provided in a flange of the liner plate and assembled with bolts and nuts is known (for example, a patent Reference 1).

Further, (2) a liner plate is also known in which a protruding flange facing one end of one liner plate is provided and the end of the other liner plate is fitted (for example, see Patent Document 2).
JP 2002-295170 A JP-A-9-125888

(1) In the conventional case, since it is a narrow place where the panel of the ceiling part and the wall part are joined together by bolts and nuts, the bolt holes are supported with the wall part supported by human power or the like. It takes time and effort to insert the bolts and join them with the nuts after positioning the wall panel, making the work complicated and labor to support the wall. Was necessary.
In the case of (2), it is effective to connect the vertical earth retaining panel in the vertical direction when the vertical earth retaining panel is simply placed on the vertical earth retaining panel located in the lower direction from the upper side. There is a problem that it cannot be used to join the ceiling panel and the vertical earth retaining panel in the vertical direction.
The present invention can advantageously solve the above-mentioned problems, and by moving the vertical earth retaining panel to the horizontal frame without using bolts and nuts, the horizontal ceiling panel and the vertical vertical earth retaining panel are used. It is an object of the present invention to provide a structure for joining earth retaining panels of shafts that can be joined.

  In order to solve the above-mentioned problem advantageously, in the joining structure of the earth retaining panel of the vertical shaft of the first invention, in the joining structure of the widening part ceiling retaining panel for the widening part ceiling in the vertical shaft and the vertical earth retaining panel, The upper flange of the vertical earth retaining panel is provided with an insertion part comprising a notch or a through hole, and the widening part ceiling earth retaining panel has a support surface on the support member that can be inserted into the insertion part, the earth retaining part for the widening part ceiling It is provided at a position slightly below the top plate provided on the panel, and an upper flange arrangement space is provided between the support surface and the bottom surface of the top plate. With the support member of the earth retaining panel inserted, the upper flange panel is slid sideways so that the upper flange of the vertical earth retaining panel is arranged and joined in the upper flange arrangement space. You .

Further, in the second invention, in the joining structure of the earth retaining panel of the shaft according to the first invention, the vertical earth retaining panel is provided with an insertion portion composed of a notch in the upper flange and a protrusion on the back surface. The widening portion ceiling earth retaining panel is provided with grooved steel at the end, and the supporting member is provided with an elastic body on one side and a pressing part on the other on each of the opposing vertical inner surfaces of the grooved steel. Are provided so as to face each other, and the vertical portion of the vertical earth retaining panel is sandwiched and fixed between the elastic body and the pressing portion.

Further, in the third invention, in the joining structure of the earth retaining panel of the shaft according to the first invention, the vertical earth retaining panel includes an insertion portion composed of a wide through hole in the upper flange, and a narrow width covering connected to the insertion portion. It has a through hole for locking, the widening section ceiling earth retaining panel is provided with grooved steel with the web as the upper surface plate at the end, and both side surfaces are separated downward on the lower surface side of the web The upper part of the supporting member which consists of the latching hook which has the inclined surface which inclines is fixed, The lower part side of the said inclined surface is made wider than the said through-hole for to-be-latched.

According to the first aspect of the present invention, the upper flange of the vertical earth retaining panel is provided with an insertion portion including a notch portion or a through hole, and the widening portion ceiling earth retaining panel has a support surface in the support member that can be inserted into the insertion portion. Since the upper flange arrangement space is provided between the support surface and the top plate bottom surface, the wide soil is provided at a position slightly below the top plate provided on the widening section ceiling earth retaining panel. With the support member of the widening part ceiling earth retaining panel inserted in the insertion part of the retaining panel, the upper flange of the longitudinal earth retaining panel is placed in the upper flange arrangement space by sliding the longitudinal earth retaining panel horizontally. Thus, the horizontal widening section ceiling retaining panel and the vertical longitudinal retaining panel can be easily joined. In addition, since no bolts are used, it is possible to perform mechanical construction with one touch by simply sliding the vertical earth retaining panel to the side.
Moreover, since the structure of the earth retaining panel side for the widened portion ceiling and the vertical earth retaining panel side is also simple, the joining structure is simple.

  According to the second aspect of the present invention, the vertical earth retaining panel is provided with the insertion portion composed of the notch in the upper flange and the protrusion on the back surface. Each of the opposing longitudinal inner surfaces of the grooved steel is provided with an elastic body on one side and the support member provided with a pressing portion on the other side so as to face each other, and between the elastic body and the pressing portion. Since the vertical portion of the vertical earth retaining panel is sandwiched and fixed, the vertical earth retaining panel can be accurately built without play.

  According to the third aspect of the present invention, the vertical earth retaining panel includes an insertion portion formed of a wide through hole in the upper flange, and a narrow locking through hole connected to the insertion portion. Is provided with a grooved steel having a web as an upper surface plate at the end, and an upper portion of a supporting member comprising a locking hook having an inclined surface inclined so that both side surfaces are separated downward on the lower surface side of the web. Since the lower side of the inclined surface is wider than the locked through hole, the locked through hole of the vertical earth retaining panel is positioned on the inclined surface of the locked hook. The vertical earth retaining panel can be supported by the wide area ceiling ceiling earth retaining panel.

    Next, the present invention will be described in detail based on the illustrated embodiment.

  1 and FIG. 2, in order to construct a widening shaft, the ground 1 is excavated to provide a vertical earth retaining body 5 and a widening portion ceiling panel 3 (see FIG. 2) is provided. It is process explanatory drawing of one Embodiment until joining with the vertical earth retaining panel 19 of a front wall.

  Briefly describing this process, the ground 1 is excavated, a plurality of retaining panels 29 are joined to the inside of the vertical holes 2, and the vertical soil retaining body 5 formed of an assembly of a natural ground and the retaining panel 29 is provided. A vertical earth retaining body 5 filled with grout is provided between the two and the lower part of the vertical earth retaining body 5 is excavated so as to be widened laterally using an auger type excavator such as a hand type auger 8. 1 (c) to (e), a bracket provided with a support beam 11 for supporting the widened portion ceiling panel 3 (see FIG. 2) on a plurality of parent piles 6 such as H-shaped steels. 10, and a plurality of cross beams 12 are placed in parallel and spaced apart in the depth direction on support beams 11 that are adjacent to each other in the left-right direction. Slide the earth retaining panel 3 for the widened part ceiling and push it in. And the widening retaining body 4 for the widening part ceiling is installed.

  In addition, the front-end | tip part of the ceiling earth retaining panel 3 of the depth direction front end side is protruded from the support beam 11, and joining with the wall earth retaining panel located in the lower layer is made easy. For this purpose, a space part in the depth direction is formed by excavating slightly deeper than the depth of the widening body retaining body.

  Next, a reinforcing ring 13 is provided by assembling a split ring such as an H-shaped steel at the lower end of the vertical earth retaining body 5, and a flange of the reinforcing ring 13 and a joint plate of the ceiling earth retaining panel 3 before the widened portion. Are assembled by connecting the web of the reinforcing ring 13 and the joint plate of the vertical earth retaining member 5 by bolts and nuts, and the support beam 11 and the cross beam 12 as appropriate. A level adjusting plate is interposed therebetween to adjust the level of the ceiling retaining panel 3, and the joint plates 15 of the ceiling retaining panel 3 are coupled to each other by bolts and nuts 14.

And the state which has attached the vertical earth retaining panel 19 which consists of the front wall panel for the front part located in the uppermost part in the widening part to the ceiling earth retaining panel 3 of a back part is shown.
In the present invention, the main structure is a joining structure of the earth retaining panel that can easily join the earth retaining panel 3 for the ceiling and the longitudinal earth retaining panel 19.

Hereinafter, with reference to FIG. 3 to FIG. 10, a description will be given of a structure for joining earth retaining panels according to a first embodiment of the present invention.
First, referring to the perspective view of FIG. 9 and the plan view of FIG. 3, the structure on the side of the widening portion ceiling earth retaining panel 3 at the back in the widening direction will be described. In FIG. 9, the inner surface side when arranged in a vertical shaft Is provided with a support member mounting bracket 7 in which a flange 7b of a grooved steel 7a is integrally provided by welding or the like at the front end of the widening section ceiling retaining panel 3 on the back side. ing. The support member mounting bracket 7 has a web as a top plate 7c, and one (base end side) flange 7b is fixed to the main body portion side of the widening portion ceiling earth retaining panel 3, and the lower side is opened.

  One end side of a plurality of support members 9 is fixed to the longitudinal inner surface of the flange 7b on the proximal end side in the longitudinal direction of the flange, and the support members 9 are fixed to the longitudinal inner surfaces of the flanges facing each other at intervals. An elastic body 16 such as a leaf spring is fixed to the longitudinal inner surface of the flange 7b facing the support member mounting bracket 7 so that the support member mounting bracket 7 faces the support member 9. The top plate (web) 7c is fixed in a state slightly separated from the lower surface.

  The distance between the support member 9 and the elastic body 16 that is opposed to the support member 9 is larger than the thickness of the vertical plate 18 in the vertical earth retaining panel 19, and the vertical plate 18 and the protrusion 17 fixed thereto. The dimension is smaller than the thickness of

  The support member 9 is made of small cross-section grooved steel and is opened downward in the same manner as the support member mounting bracket 7. The upper surface of the web of the support member 9 is a support surface 9 a, and the top plate ( The space between the lower surface of the web 7c and the support surface 9a of the upper surface of the support member 9 is a space 22 for placing the upper flange 20 in the vertical earth retaining panel 19 supported and attached thereto.

  The vertical earth retaining panel 19 supported by the wide panel ceiling panel 3 as described above is shown in FIG. 10 as a perspective view from the inner surface side when arranged in a vertical shaft, and in FIG. As shown, the upper flange 20 of the vertical earth retaining panel 19 is provided with an insertion portion 21 formed of a plurality of cutout portions at intervals in the longitudinal direction of the upper flange 20, and the vertical plate 18 connected to the upper flange 20. On the back side, a protrusion 17 is provided at a position away from the insertion portion 21, and the protrusion 17 is disposed on the side where the vertical earth retaining panel 19 is laterally moved.

  As shown in FIG. 6, the upper portion of the vertical earth retaining panel 19 is disposed in the groove of the support member mounting bracket 7, and the insertion portion 21 in the vertical earth retaining panel 19 is positioned at a position where the supporting member 9 can be inserted. When the vertical soil retaining panel 19 is raised in the state and is laterally moved in the longitudinal direction of the support member mounting bracket 7 to install the vertical soil retaining panel 19, as shown in FIGS. 7 and 8 (a), a predetermined installation is performed. The protrusion 17 of the vertical earth retaining panel 19 that has been laterally moved to the position engages with the elastic body 16 and presses the elastic body 16, thereby causing the vertical plate 18 of the vertical earth retaining panel 19 to move toward the support member 9. By pressing against the pressing portion 9b made of a flange, the vertical earth retaining panel 19 is prevented from rattling.

  As shown in the plan plan view of the installation process in FIGS. 3A, 3B and 4A, 4B, the vertical earth retaining panel 19 to be installed first is engaged with the stopper 24 in the side wall panel 23. Thus, the installation position is set, and the vertical earth retaining panel 19 to be installed next comes into contact with the existing vertical earth retaining panel 19 so that the existing vertical earth retaining panel 19 functions as a stopper.

FIGS. 3 and 4 show a mode in which the two vertical earth retaining panels 19 are supported with respect to the state in which the three wide width portion ceiling earth retaining panels 3 are arranged in parallel. The upper flange 20 of the vertical soil retaining panel 19 is disposed so as to straddle and support the vertical soil retaining panel 19. 5 (a) to 5 (d), the vertical earth retaining panel 19 with respect to the elastic body 16 in the support member mounting bracket 7 in FIGS. 3 (a), (b) and FIGS. The positional relationship when the is horizontally moved is shown.
The protrusion 17 and the elastic body 16 may be reversed in the mounting position relationship, and the support member and the elastic body 16 also change the orientation of the insertion portion 21 formed by the cutout portion of the upper flange 20 in the vertical earth retaining panel 19. The reverse mounting position relationship can be obtained.

FIGS. 11 to 14 show a second embodiment of the present invention. In the first embodiment, the support member 9 is attached to the longitudinal inner surface of the flange 7b of the support member attachment bracket 7. On the lower surface side of the top plate 7 c of the support member mounting bracket 7, a locking hook 27 having a narrow neck portion 25 at the upper portion and inclined surfaces 26 that expand downward on both front and rear side surfaces below the narrow neck portion 25. A plurality of support members 9 are provided in series at intervals in the left-right direction, and a wide through hole 30 is provided on the upper flange 20 of the vertical earth retaining panel 19 including a front wall panel for the front portion located at the top. A plurality of locked through-holes 32 made up of narrow-width through-holes 31 connected thereto may be provided in series at intervals to be joined.
In this case, the vertical earth retaining panel 19 is lifted, and the support member 9 composed of the hanging locking hook 27 of the wide area ceiling earth retaining panel 3 is inserted into the wide through hole 30 in the vertical earth retaining panel 19. In this state, by moving the vertical earth retaining panel 19 laterally, the inclined surface 26 on the wide side of the support member 9 is positioned below the narrow through hole 31, so that the vertical earth retaining panel is supported by the support member 9. It is set as the joining form which 19 is suspended and supported. Since the longitudinal soil retaining panel 19 is positioned in the front-rear direction by the front and rear inclined surfaces 26, the elastic body 16 and the protrusion 17 in the first embodiment are not required. In addition, the bottom surface of the top surface of the inclined surface 26 and the support member mounting bracket 7 is used as an arrangement space 22 for the upper flange 20 of the vertical earth retaining panel 19.

  As the suspension locking hook 27, as shown in FIG. 14, a block-like member may be fixed to the top plate 7c of the support member mounting bracket 7 by welding, or in FIGS. As shown as an example of a modified form of the support member 9, the steel plate is bent and formed so that the upper portion is a thin neck portion 25 obtained by superimposing the steel plates, and the lower portion of the narrow neck portion 25 is separated downward. Alternatively, the supporting member 9 may be a suspension locking hook 27 provided with inclined surfaces 26 on both front and rear sides which are inclined in the direction of the angle. In FIG. 15, the same parts as those in FIG.

It is process explanatory drawing for demonstrating the joining structure of the earth retaining panel of the vertical shaft of this invention, (a) is a state where the widening ceiling part of the vertical earth retaining body lower part is dug toward the inner part. Transverse plan view, (b) is a longitudinal side view thereof, (c) is a longitudinal side view showing the vicinity of the overhanging portion of the support beam, and (d) is a front view showing the vicinity of the support beam supported by the parent pile via a bracket. (E) is an enlarged view showing a part of (d) in an enlarged manner. (A) is a longitudinal side view showing a state in which the front wall panel is installed, (b) is a front view of (a), and (c) is a longitudinal front view showing a joint portion between the widened portion ceiling earth retaining panel and the front wall panel. FIG. (A) And (b) is a plane sketch of the process of joining a vertical earth retaining panel to the widening part ceiling earth retaining panel. (A) And (b) is a plane sketch of the process of joining a vertical earth retaining panel to the widening part ceiling earth retaining panel. (A)-(d) is sectional drawing which shows the joining condition at the time of making the vertical earth retaining panel gradually laterally move with respect to the widening part ceiling earth retaining panel, and FIG. It is sectional drawing of the AA, BB, CC, and DD line | wire in Fig.4 (a) (b), respectively. It is a partially notched perspective view which shows the state which has located the insertion part in a vertical earth retaining panel in the support member in the earth retaining panel for widening part ceilings. It is a partial longitudinal cross-sectional perspective view which shows the state which moved the vertical earth retaining panel laterally and joined the vertical earth retaining panel to the widening part ceiling earth retaining panel. (A) is a vertical side view of FIG. 7, (b) is a vertical side view showing a support member mounting bracket, and (c) is a vertical side view of a vertical earth retaining panel. It is a perspective view which takes out and shows the earth retaining panel for wide part ceiling in FIG. It is a perspective view which takes out and shows the vertical earth retaining panel in FIG. Planar positional relationship at the suspended position between the support member mounting brackets in the multiple (three) widening section ceiling retaining panels and the locked through holes provided with the insertion portions in the plural (two) longitudinal retaining panels FIG. It is a plane plan view which isolate | separates and shows the plane positional relationship at the time of arrange | positioning the insertion part in a vertical earth retaining panel in the insertion position with respect to the support member attachment metal fitting in the earth retaining panel for widening part ceilings. (A) is a vertical front view showing a state in which a vertical earth retaining panel is suspended and joined to a support member made of an anchoring hook of a ceiling earth retaining panel, and (b) is an anchoring hook portion in the ceiling earth retaining panel. The top view which shows vicinity, (c) is a top view of the to-be-latched hole vicinity in a vertical earth retaining panel. The support member is shown, (a) is a side view, (b) is a plan view, (c) is a front view, and (d) is a perspective view. FIG. 11 shows a case where a vertical earth retaining panel is joined to a ceiling earth retaining panel according to a modification of the retaining hook shown in FIG. 11, wherein (a) suspends the vertical earth retaining panel on the anchor hook of the ceiling earth retaining panel. A vertical front view showing a state of being locked down and joined, (b) is a plan view showing the vicinity of the locking hook portion in the ceiling earth retaining panel, and (c) is a plan view near the locked hole in the vertical earth retaining panel. It is. The deformation | transformation form of a supporting member is shown, Comprising: (a) is a side view, (b) is a top view, (c) is a front view, (d) is a perspective view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Ground 2 Vertical hole 3 Panel for widening part ceiling 4 Widening earth retaining body (for widening part ceiling)
5 vertical earth retaining body 6 parent pile 7 support member mounting bracket 7a grooved steel 7b flange 7c top plate 8 hand type auger 9 support member 9a support surface 9b holding part 10 bracket 11 support beam 12 cross beam 13 reinforcing ring 14 bolt / nut 15 Joint plate 16 Elastic body 17 Protrusion 18 Vertical plate 19 Front wall vertical earth retaining panel 20 Upper flange 21 Inserting portion 22 Inserting space 23 Side wall panel 24 Stopper 25 Neck 26 Slope 27 Locking hook 29 Earth retaining panel 30 Wide hole 31 Narrow hole 32 Locking hole

Claims (3)

  In the joint structure of the widening section ceiling retaining panel and the vertical retaining panel in the shaft, an insertion part consisting of a notch or a through hole is provided in the upper flange of the vertical retaining panel, and the widening section ceiling retaining panel has The support surface of the support member that can be inserted into the insertion portion is provided at a position slightly below the top plate provided on the widening portion ceiling earth retaining panel, and between the support surface and the top plate lower surface. In the state where the upper flange arrangement space is provided and the support member for the widening portion ceiling retaining panel is inserted into the insertion portion of the vertical soil retaining panel, the vertical soil retaining panel is slid horizontally, A structure for joining earth retaining panels of a shaft, wherein an upper flange is arranged and joined in the upper flange arrangement space.   The vertical earth retaining panel is provided with an insertion part consisting of a notch in the upper flange and a protrusion on the back surface. The wide area ceiling earth retaining panel is provided with channel steel at the end. Each of the vertical inner surfaces of the grooved steel is provided with an elastic body on one side and the supporting member provided with a pressing portion on the other side so that the vertical earth retaining panel is interposed between the elastic body and the pressing portion. The joining structure of the earth retaining panel of the shaft according to claim 1, wherein the vertical portion is sandwiched and fixed.   The vertical earth retaining panel has an insertion part composed of a wide through hole in the upper flange and a narrow locking through hole connected to the insertion part, and the wide part ceiling earth retaining panel has a web at the end. An upper surface of a support member comprising a hook hook having an inclined surface that is inclined so that both side surfaces are separated downward is fixed to the lower surface side of the web. The joint structure of the earth retaining panel according to claim 1, wherein the lower side of the surface is wider than the locked through hole.

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