JPS6123077Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a fastener receiving member that is attached to a wall-supporting earth anchor that penetrates an earth retaining wall or an underground wall in an inclined position.

This type of device is used to ensure that the anchor receives a fastener such as a nut. Conventionally, the receiving member has a supporting surface that is perpendicular or almost perpendicular to the anchor to receive the fastener. and a support surface for surface contact with the wall. However, as the fasteners are tightened, a force is generated that causes the receiving member to slide against the wall, which causes the receiving member to slide and displace, causing the receiving member to be positioned at a predetermined position. There was a problem in that it was difficult to tighten the bolts under such conditions, and after tightening, the receiving member would slide, causing loosening of the bolts.

In view of the above points, the present invention allows the receiving member to be placed in a predetermined position while the wall maintains the necessary strength to prevent the receiving member from sliding without performing any special processing on the wall. It is an object of the present invention to enable reliable tightening with a fastener in a positioned state, and also to surely avoid loosening after tightening.

Next, embodiments of the present invention will be described in detail with reference to the drawings.

When constructing a road by cutting out a mountain slope, etc., an earth retaining wall 2 made of concrete or the like is constructed on the vertical wall portion 1 that is initially cut, and steel wires or An earth anchor 3 such as a steel stranded wire or a steel rod is penetrated and fixed in an inclined position to prevent the earth retaining wall 2 from collapsing.

To install the anchor 3, a hole 4 of 15 m to 30 m is excavated diagonally underground from the wall 2.
Attach the receiving member 5 at a position corresponding to the hole 4,
Inserting the anchor 3 into the hole 4 and injecting grout under pressure to fix the anchor 3 in the ground,
After that, a nut 6, which is an example of a fastening tool, is screwed onto the end of the anchor 3 via a washer 7, and by tightening it against the receiving member 5, the tension force of the nut 6 is used to tighten the wall 2 into a vertical wall section. It is configured to be fixed relative to 1.

As shown in FIG. 2, the receiving member 5 has a first supporting surface F 1 that is in surface contact with the wall 2, and a first supporting surface F ₁ that is disposed in the longitudinal direction of the anchor 3 in order to receive the nut 6 via a washer 7. A second support surface F ₂ is formed to be orthogonal or substantially orthogonal, and
Drilling and forming a hole 8 for penetrating the anchor 3,
And from the lower half side of the hole 8 of the first support surface _F1 ,
A gutter-like body 9 is integrally formed in a state continuous with the hole 8.

As shown in FIGS. 2 and 4, a wall 2 is formed on the first support surface _F1 as the fastener 6 is tightened.
The protrusions 10 are integrally arranged side by side with relatively separate intervals in the direction of movement along the direction of movement, and extend over the entire length in the direction orthogonal to the above-mentioned direction of movement, and are in contact with the wall 2. , the protrusion 10 is engaged by biting into a wall surface or a recess in the wall surface,
This prevents movement of the fastener 6 along the wall 2 due to the tightening force, and also prevents the receiving member 5 from moving unexpectedly after tightening, causing loosening of the fastener 6. It is designed to avoid this.

Reference numeral 11 in the figure is a locking hole through which a wire, rope, etc. is inserted when transporting a large number of receiving members 5, and reference numerals 12 in the figure are reinforcing ribs.

FIG. 5 shows a modification of the receiving member 5, in which a bulging portion 13 is integrally provided on each upper edge of both sides of the gutter-like body 9 and protrudes upward toward the first support surface _F1 . body 9
It is constructed with a high strength.

Incidentally, the present invention may be of a type that does not have the gutter-shaped body 9 as in the two embodiments described above, or a cylindrical body may be provided instead of the gutter-shaped body 9. Furthermore, various structural modifications are possible for the protrusions 10, for example, as shown in Figure 6, in which the protrusions 10 are relatively long in the direction perpendicular to the direction of movement along the wall 2 but are spaced apart.

Furthermore, the present invention is applicable not only to the above-mentioned earth retaining wall, but also to underground walls at pump stations or when constructing basements, and these are collectively referred to as walls 2.

In summary, in the present invention, the earth anchor fastener receiving member described by Masaru has a first support surface F ₁ that is brought into surface contact with the wall 2, and a fastener 6 that is attached to the anchor 3. A second support surface F 2 formed perpendicularly or almost perpendicularly to the anchor ₃ , and a hole 8 through which the anchor 3 passes, are provided, and the first support surface F ₁ is provided with
A protrusion 10 for preventing movement along the wall 2 due to the tightening force of the fastener 6,
It is characterized by being long in the direction perpendicular to the direction of movement, and arranged in parallel at intervals in the direction of movement.

In other words, since the protrusions 10 are arranged side by side on the first support surface F1 that contacts the wall ₂ , the projections 10... can be made by using the uneven parts that originally occur on the wall 2 or by digging them into the wall 2. The first support surface _F1 can be locked by locking the protrusions 10 on the wall 2, and a hole for locking the receiving member 5 on the wall 2 is provided. Wall 2 without any special processing
, and the fastener 6 is moved along the second support surface.
It is possible to reliably tighten the F ₂ in a state where it is received in a predetermined position, and also eliminates movement after tightening, making it possible to reliably avoid the occurrence of loosening of the fastener 6.

In particular, since the protrusions 10 are long in the direction perpendicular to the direction of movement and are arranged side by side at intervals in the direction of movement, for example, when small needle-like protrusions are arranged close to each other, In this case, the strength is small due to the presence of a small protrusion on the wall 2 between adjacent protrusions, and the tightening force of the fastener 6 is too concentrated at the tip of each needle-like protrusion. However, these problems can be avoided and the sliding of the receiving member 5 with respect to the wall 2 can be prevented. Sufficient support strength can be maintained to prevent this, and it has become possible to achieve reliable tightening using the fastener and more reliably avoid the occurrence of loosening after tightening.

[Brief explanation of the drawing]

The drawings show an embodiment of the earth anchor fastener receiving member according to the present invention, in which Fig. 1 is a schematic vertical sectional view showing the state of use, Fig. 2 is an enlarged sectional view of the main part, and Fig. 3 is the receiving member. FIG. 4 is a front view of the stop member, FIG. 4 is a back view of FIG. 3, FIG. 5 is a side view showing a modified example of the catch member, and FIG. 6 is a rear view of the catch member showing another embodiment. . 2... Wall, 3... Earth anchor, 6... Fastener, 8... Through hole, 10... Projection, F ₁ ... First
Support surface, F ₂ ... second support surface.

Claims (1)

[Scope of utility model registration request] A fastener receiving member that is attached to a wall supporting earth anchor 3 that penetrates a wall 2 for earth retaining or an underground wall in an inclined position, and is a first support surface F ₁ that is brought into surface contact with the wall 2. , a second support surface F ₂ formed perpendicularly or almost perpendicularly to the anchor 3 in order to receive the fastener 6 attached to the anchor 3, and a hole 4 through which the anchor 3 passes. and the first support surface F ₁
The wall 2 due to the tightening force of the fastener 6
Protrusion 10 for preventing movement along...
is long in the direction perpendicular to its movement direction, and
A plurality of earth anchor fastener receiving members are arranged in parallel at intervals in the moving direction.