Anchor base

Abstract

Allows for flexible setting of anchor pitch. [Solution] The base 200 for the anchor, which fixes the head 302 of the anchor 301 anchored to the ground, comprises a base body 210 that holds the head 302 of the anchor 301, and a pair of legs 220 attached to both sides of the base body 210, which transmit the force acting from the anchor 301 between the main piles 101 on both sides of the anchor 301 and the base body 210. The legs 220 have a plate surface that is horizontal and have rib members 221 that transmit the force acting from the anchor 301 between the base body 210 and the main piles 101.

Description

[Technical Field]

[0001] The present invention relates to an anchor pedestal used for fixing an anchor head when retaining soil by the ground anchor construction method. [Background Art]

[0002] As a conventional anchor pedestal, there is known one in which a pair of pedestal receiving pieces are attached on a wale web made of H-shaped steel, and the pedestal is sandwiched and fixed between the pair of pedestal receiving pieces (see, for example, Patent Document 1). [Prior Art Documents] [Patent Documents]

[0003] [Patent Document 1] Japanese Unexamined Patent Publication No. 2011-241533 [Summary of the Invention] [Problem to be Solved by the Invention]

[0004] In the configuration where the pedestal is sandwiched and fixed between a pair of pedestal receiving pieces as described above, since the pedestal receiving pieces that support each respective pedestal are interposed between adjacent anchor pedestals, it is difficult to flexibly set the anchor pitch. For this reason, for example, it may be difficult to adjust the positions of the pedestal and the anchor steel wire, or it may be difficult to install the pedestal.

[0005] The present invention has been made in view of the above points, and an object of the present invention is to enable flexible setting of anchor pitches. [Means for Solving the Problem]

[0006] In order to achieve the above object, the present invention provides an anchor pedestal for fixing a head of an anchor anchored in the ground, The base body that holds the head of the above anchor, Each of these is attached to both sides of the base body, and a pair of legs transmits the force acting from the anchor between the main piles on both sides of the anchor and the base body. Equipped with, The above-mentioned leg portion is characterized in that the plate surface is horizontal and has rib members that transmit the force acting from the anchor between the base body and the main pile.

[0007] As a result, the force acting from the anchor is transmitted between the base body and the main pile via horizontal rib members on the plate surface, making it easy to shorten the distance between adjacent bases and allowing for flexible setting of the anchor pitch. [Effects of the Invention]

[0008] In this invention, the anchor pitch can be flexibly set. [Brief explanation of the drawing]

[0009] [Figure 1] A perspective view showing the configuration of the base 200. [Figure 2] A front view showing the configuration of the base 200. [Figure 3] A plan view showing the configuration of the base 200. [Figure 4] A side view showing the configuration of the base 200. [Modes for carrying out the invention]

[0010] Embodiments of the present invention will be described in detail below with reference to the drawings.

[0011] In the ground anchor method, as shown in Figure 1, multiple main piles 101 made of H-shaped steel are erected in the retaining wall 400. Horizontal frames 103 made of H-shaped steel are attached to the main piles 101 via brackets 102. A base 200 that supports the reaction force of the anchors 301 is placed on the frames 103. Note that the frames are not limited to being made of H-shaped steel, but may also be made of square pipes or channel steel (C-channels), etc.

[0012] As shown in Figures 2 to 4, the base 200 is made up of a base body 210 with legs 220 on both sides. The base body 210 is made up of, for example, a bottom wall 211, side walls 212 and 213, and a top wall 214 joined together in a box shape. On the inner surface of the side walls 212 and 213, a pair of upper and lower anchor support plates 216 and 217 are attached to support the anchor plate 218 to which the head 302 of the anchor 301 is fixed. In addition, for example, a reinforcing wall 215 is provided.

[0013] A pair of legs 220 are provided on both sides of the base body 210. More specifically, the side walls 212 and 213 of the base body 210 are provided with rib members 221 with horizontally oriented plate surfaces. These rib members 221 transmit the force acting from the anchor 301 between the base body 210 and the main pile 101. The front edge of the rib members 221 in Figure 1 is connected to each other by a connecting plate 222.

[0014] On one of the pair of legs 220, a backfill plate member 223 parallel to the retaining wall 400 is attached to the edge of the rib member 221 facing the main pile 101. A backfill 224 is provided between the backfill plate member 223 and the main pile 101. The other leg 220 of the pair of legs 220 does not have a backfill plate member 223, but the rib member 221 abuts against the backfill plate member 223 provided on the leg 220 of the adjacent base 200, thereby transmitting the force acting from the anchor 301 between the base body 210 and the main pile 101.

[0015] Here, the pedestals 200 adjacent to each other are arranged relatively vertically offset such that the height positions of the heads 302 of the anchors 301 are different from each other, so that the respective rib members 221 are vertically offset from each other. In combination with the backing plate member 223 being provided only on the leg portion 220 on one side, for example, the pedestals 200 can be brought close to each other such that the rib members 221 overlap in a plan view, and the pitch between adjacent anchors 301 can be easily reduced. Further, adjustment of the positions of the pedestal 200 and the anchor steel wire can be facilitated.

[0016] Note that, in order to shift the vertical positions of the rib members 221 in the adjacent pedestals 200, it is not limited to arranging the pedestals 200 vertically offset such that the height positions of the heads 302 of the anchors 301 are different from each other as described above, and the height positions of the rib members 221 may be shifted from each other. Further, the height of the rib member 221 may be made different between one side and the other side of each pedestal 200. This makes it possible to reduce the pitch between adjacent anchors 301 by preventing the rib members 221 of adjacent pedestals 200 from overlapping each other while achieving common use of the pedestals 200.

[0017] Further, the backing plate member 223 is not limited to being provided only on the leg portion 220 on one side of the pedestal main body portion 210, and pedestal main body portions 210 each having the backing plate member 223 on the leg portions 220 on both sides and pedestal main body portions 210 each having no backing plate member 223 on either of the leg portions 220 on both sides may be alternately arranged adjacent to each other, and the rib member 221 of the pedestal main body portion 210 having no backing plate member 223 may be abutted against the backing plate member 223 of the adjacent pedestal main body portion 210 so that a force acting from the anchor 301 is transmitted.

[0018] Further, when the surfaces of the main piles 101 are aligned, the backing plate member 223 and the backing 224 may be omitted. Description of Reference Signs

[0019] 101 Main pile 102 Bracket 103 Gantry 200 Pedestal 210 Pedestal main body 211 Bottom wall 212·213 Side wall 214 Upper wall 215 Reinforcing wall 216·217 Anchor support plate 218 Anchor plate 220 Leg portion 221 Rib member 222 Connecting plate 223 Backfill plate member 224 Backfill 301 Anchor 302 Head portion 400 Retaining wall

Claims

1. An anchor base for fixing the head of an anchor that is anchored to the ground, The base body that holds the head of the above anchor, Each of these is attached to both sides of the base body, and a pair of legs transmits the force acting from the anchor between the main piles on both sides of the anchor and the base body, Equipped with, The above-mentioned leg portion is an anchor base characterized by having a rib member that transmits the force acting from the anchor between the base body and the main pile, with the plate surface in the horizontal direction.

2. An anchor base according to claim 1, An anchor base characterized in that a backfill plate member parallel to the retaining wall is attached to the edge of the rib member of one of the pair of legs that faces the main pile, and backfill is provided between the backfill plate member and the main pile.

3. An anchor base according to claim 2, An anchor base characterized in that the second anchor base adjacent to the leg portion on one side of the first anchor base is provided such that the rib member on the leg portion on the first anchor base side abuts against the backing plate member of the first anchor base.

4. An anchor base according to claim 3, The first anchor base and the second anchor base are characterized in that their respective rib members are positioned so as to be offset vertically from each other.

5. An anchor base according to claim 3, The first anchor base and the second anchor base are characterized in that their respective rib members are positioned so that they are offset vertically from each other.

6. An anchor base according to claim 5, An anchor base characterized in that the height position of the rib member in the first anchor base and the second anchor base is set to be different on one side and the other side of the base body.

7. An anchor base according to claim 1, The first anchor base and the second anchor base are arranged adjacent to each other, and the first anchor base has backfill plate members parallel to the retaining wall attached to the edges of the rib members of the pair of legs that face the main piles. The second anchor base is characterized in that the rib member is provided so as to abut against the backing plate member of the first anchor base.

8. An anchor base according to any one of claims 1 to 7, An anchor base characterized by being placed on a frame horizontally provided on the main pile mentioned above.

Images