JP3270914B2 - Adjustment washer for anchor installation - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adjustment washer for fixing an anchor, which has a function of correcting an axis deviation of an anchor.

[0002]

2. Description of the Related Art An anchor construction method has been known as a method for preventing a slope from collapsing, in which an anchor having a length reaching a deep part of the ground is formed, and the anchor is tensioned and fixed from the slope side to restrain the collapsed soil. I have. In this anchor method, as shown in FIG. 13, a pressure receiving plate c made of a concrete block or the like is inserted into an anchor b protruding from a slope a, and further, a supporting plate d and a pedestal e are inserted into the anchor b and tensioned by a fixing device f. Has established. At this time, the pedestal e is formed by providing an angle in advance on its front surface and back surface so that the axis of the anchor b in the fixing device f and the axis of the anchor b located in the ground are on the same straight line. I have.

[0003]

However, the above-mentioned conventional anchor head fixing technique has the following problems.

<A> Due to the unevenness of the slope a and the inclination due to the molding error of the pressure receiving plate c on which the pedestal e is mounted, the axis of the anchor b exposed from the pressure receiving plate c and the axis of the anchor located in the ground are determined. It is technically difficult to position the two on the same straight line. Therefore, when fixing is performed in such a state, the anchor b is easily bent and broken at the fixing device f.

<B> As a method for solving the above-mentioned problems, there are a method of accurately shaping the installation surface of the pressure receiving plate c and a method and a shape (inclination angle) of manufacturing the pedestal e according to the condition of the site. A method of manufacturing a plurality of types of pedestals e and cambers (not shown) different from each other and selectively using the pedestals e and the cambers according to the state of the site can be considered. All of these methods are burdensome in terms of construction cost and construction period, and the management becomes complicated, which makes them less feasible, and the basic problems cannot be completely solved.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and an object of the present invention is to provide an adjustment washer for anchor installation, which can easily correct the axial deviation of an anchor.

[0007]

That is, the present invention relates to a washer used for fixing the head of an uncurtain don, wherein a center hole penetrating the front surface and the back surface is formed by forming the front surface and the back surface non-parallel. From two open plate stacks
One plate with a convex on one side and the other plate
The convex portion is fitted to the surface of the
Provide a recess that fits, and install a transmission cylinder above the plate
The guide for positioning the transmission cylinder from the top of the plate.
An adjustment washer for anchor installation characterized by being provided out .

Further, the present invention relates to a washer used for fixing the head of an uncurtain don, wherein two plates having a front surface and a back surface formed in non-parallel and having a center hole penetrating the front surface and the back surface are provided. Consisting of a laminate, a protrusion on the outer edge of one plate that restricts the movement of the other plate
Provided, a transmission cylinder is installed above the plate, and the transmission cylinder is
Providing positioning guides protruding from the top of the plate
This is an adjustment washer for anchor installation.

The present invention also relates to a washer used for fixing the head of an uncurtain don, wherein two plates having a front surface and a rear surface formed in non-parallel and having a center hole passing through the front surface and the rear surface are opened. made of laminate, a protrusion for restricting movement of the other plate in one plate edge is provided, set up a transfer tube to the top of the plate, positions the transfer cylinder
Guides to be placed are provided protruding from the top of the plate
It is an anchor installation adjustment washer according to claim.

According to the present invention, in the above-mentioned adjusting washer for anchor installation, a projection for positioning a pipe inserted in the center hole at the center of the hole is provided on the inner peripheral surface of the center hole. An adjustment washer for anchor installation.

[0011]

[0012]

[0013]

Embodiment 1 Next, an embodiment of the present invention will be described with reference to the drawings.

<A> Adjustment washer for anchor installation The adjustment washer for anchor installation is composed of two plates 1 to be described later.
It is composed of 0, 10 laminates.

<B> Plate Each plate 10 has a center hole 11 for inserting an uncurtain-don at the center, and the thickness of the front and back surfaces is gradually changed so that the front and back surfaces are formed non-parallel. I have. FIG.
As shown in (1), the intersection angle θ of the virtual surface formed by extending the front surface and the back surface of the plate 10 is appropriately set as necessary.
The outer shape of the plate 10 is not limited to a circle, but may be a rectangle, a polygon, or the like, and is not limited by the shape. It is preferable that the center hole 11 has a large opening in the plate 10 located at the time of installation.

<C> Angle Adjustment of Washer The plate 10 is used by overlapping two plates as shown in FIG. For example, when the thick portions and the thin portions of the plates 10 and 10 are overlapped so as to match each other, the upper surface portion 21 and the lower surface portion 2 of the stacked plates 10 and 10 are overlapped.
The angle formed by 2 is 0. On the other hand, when the plates 10 and 10 are rotated in the opposite directions about the opening direction of the center hole 11 as an axis, the upper surface portion 21 and the lower surface portion 2 are rotated.
The angle made with 2 increases. When the thick portion and the thin portion match each other, the angle between the upper surface portion 21 and the lower surface portion 22 becomes 2θ as shown in FIG.
As described above, the angle between the upper surface portion 21 and the lower surface portion 22 of the superposed plates 10 and 10 can be changed from 0 degree to 2θ by changing the superposition position.

[0017]

Next, a method of using the plate 10 will be described with reference to the mountain retaining method as an example.

<A> Members Used First, the members used in this method are shown in FIG. 60 in FIG.
Is a substrate having a hole in the center for allowing the anchor 50 to pass therethrough. A handle 64 is attached to the upper surface edge or side of the substrate 60 so as to face upward. 32 is
It is a sole plate for supporting the plates 10 and 10. Reference numeral 30 denotes a transmission cylinder connected to the upper surface 21 of the plates 10, 10. 33 is an upper transmission plate for installing the head fixing member of the anchor 50.

<B> Insertion of anchor First, as shown in FIG. 4, an anchor 50 with a sheath 51 is inserted into an anchor hole 41 drilled at a predetermined inclination angle in the ground 40, and then fixed in the anchor hole 41. The material 52 is filled.
After the solidification material 52 is filled up to the hole, the pipe 25 is provided at the mouth of the anchor 50, and then the seating surface of the substrate 60 is formed substantially flat. In some cases, the exterior of the pipe 25 may be omitted.

<C> Installation of the substrate and the floor plate As shown in FIG.
Is provided at the mouth of the anchor 50 and is seated on the ground 40. When the substrate 60 is mounted, the pipe 25 functions as a guide member. Then, the floor plate 32 is mounted on the substrate 60 by bolting or the like.

<D> Installation and Adjustment of Washers The direction in which the anchor 50 extends is not always orthogonal to the upper surface 321 of the floor plate 32, and the angle of extension of the actually installed anchor 50 is slightly different from the design angle of the anchor. There is a gap. Therefore, first, as shown in FIG. 6, the anchor 50 is inserted into the center hole 11 and
0 are placed one on top of the other, so that the upper surface 21 of the plate 10 and the anchor 50 extend at right angles to each other.
10 is adjusted by rotating the anchor 50 about the axis. When the angle adjustment of the plates 10 and 10 is completed, each plate 1
Welding between 0 and 10 and between the bottom plate 32 are performed.

<E> Installation of transmission cylinder / upper transmission plate Next, as shown in FIG.
The transmission tube 30 is placed on the upper surface portion 21 and fixed by welding or the like, and the upper transmission plate 33 is placed and fixed on the upper end surface of the transmission tube 30.

<F> Tension / Fixing After the transmission cylinder 30 is filled with a rust preventive such as cement milk, a known anchor fixing tool or anchor head is mounted on the upper transmission plate 33 to tension / fix the anchor 50. I do.
After that, concrete may be cast and a pressure receiving plate made of concrete integrated with the substrates 60 may be constructed.

[0024]

Embodiment 2 As shown in FIG.
A concave portion or a convex portion may be formed on the bonding surface b. The plate 10b has a projection 13 formed on a surface in contact with the plate 10a. The protrusion 13 is, for example, a circular protrusion coaxial with the center axis of the center hole 11. The plate 10a has a concave portion 12 which is fitted to the convex portion 13 on a surface in contact with the plate 10b. Thus, the plate 10a and the plate 10b
When the plate 10a and the plate 10b are overlapped with each other, the lateral displacement of the plate 10a and the plate 10b can be prevented.

[0025]

Third Embodiment FIG. 9 shows another embodiment in which a ring-shaped projection 14 is provided on the outer edge of one of the plates 10. Plate 1
0c opened a center hole 11 penetrating the front and back at the center, and inclined the front and back surfaces at a predetermined angle.
This is the same as the above embodiment. The protrusion 14 is used for the other plate 1
0 is set to a size that can be mounted on the outer peripheral surface of the
The horizontal displacement of the plates 10c and 10 is regulated when they are superimposed.

[0026]

Embodiment 4 The projections 14 of the plate 10c of Embodiment 3
A plurality of projections 15 may be used. FIG. 10 shows a perspective view of the plate 10d of the present embodiment. On the outer edge of the plate 10d, a claw 15 is provided so as to protrude in the center hole 11 penetrating direction. By providing the claw 15, the same operation and effect as when the protrusion 14 is provided can be obtained.

[0027]

Fifth Embodiment The protrusions 14 and the claws 15 of the third and fourth embodiments may be provided on the inner edge of the plate. That is, a ring-shaped protrusion or a plurality of claws are protruded from the center hole 11 of the plate 10 in the penetrating direction, so that the lateral displacement of the stacked plates can be restricted.

[0028]

Embodiment 6 A projection for centering the pipe 25 may be provided on the inner peripheral surface of the center hole 11 of the plates 10, 10a to 10d. That is, as shown in FIG.
A plurality of protrusions 111 are formed by projecting from inside. With this protruding body 111, when the plate 10e is inserted into the pipe 25, the pipe 25 can be reliably positioned at the center of the center hole 11.

[0029]

Seventh Embodiment A guide member for supporting the transmission cylinder 30 may be provided on the upper surfaces of the plates 10, 10a to 10e. That is, as shown in FIG. 12, the plate 10f of the present embodiment is formed by projecting the guide 16 on the upper surface. The guide 16 allows the transmission cylinder 30 to be attached to the plate 10f.
Can be easily positioned. In FIG. 12, the guide 16 is provided inside the transmission tube 30. However, the guide 16 may be provided outside the transmission tube 30 so that the transmission tube 30 can be positioned.

[0030]

Embodiment 8 Each of the washers of Embodiments 1 to 5 is not limited to fixing an earth anchor, but when a PC steel material is installed in a concrete structure and prestress is introduced, the washer of the fixing device is used. It can also be used as one member.

[0031]

Embodiment 9 Although each of the washers of Embodiments 1 to 6 is described as functioning as one set of two plates, the same operation and effect can be obtained even if the number of plates is two or more. Naturally, it is included in the first to eighth embodiments.

[0032]

As described above, the present invention has the following effects.

<A> The angle between the upper surface and the lower surface of the washer can be easily adjusted by overlapping and rotating the plates whose thickness varies. For this reason, when anchoring the anchor head, even if the anchor is not orthogonal to the surface on which the anchor extends, it is possible to easily and accurately form the anchor anchoring surface orthogonal to the anchor using the washer. Can be. Therefore, the anchoring operation of the anchor head can be performed quickly, and the predetermined anchor strength can be maintained semipermanently.

<B> By providing a projection or a recess on each of the joining surfaces of the plates constituting the laminated body and forming a locking projection or a claw, lateral displacement of the plate can be reliably prevented. .

<C> By protruding the protruding body from the inner peripheral surface of the center hole, the pipe inserted into the center hole can be reliably arranged at the center of the hole.

<D> Since the guide is provided so as to protrude from the upper surface of the plate, the transmission cylinder installed on the upper surface of the plate can be easily positioned.

[Brief description of the drawings]

FIG. 1 is a perspective view of a washer.

FIG. 2 is a side sectional view of a washer.

FIG. 3 is an explanatory view of a mountain retaining method using a washer.

FIG. 4 is an explanatory view of a mountain retaining method using a washer.

FIG. 5 is an explanatory view of a mountain retaining method using a washer.

FIG. 6 is an explanatory diagram of a ridge retaining method using washers.

FIG. 7 is an explanatory view of a mountain retaining method using a washer.

FIG. 8 is an explanatory view of a second embodiment.

FIG. 9 is an explanatory view of a third embodiment.

FIG. 10 is an explanatory diagram of a fourth embodiment.

FIG. 11 is an explanatory diagram of the sixth embodiment.

FIG. 12 is an explanatory view of a seventh embodiment.

FIG. 13 is an explanatory diagram of a conventional technique.

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Kihei Takeda 1-2-13 Negishi, Taito-ku, Tokyo Katsumura Construction Co., Ltd. (56) References Hirai 6-4140 (JP, U) Hirai 6 −85431 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) E02D 5/76 E02D 5/80

Claims (4)

(57) [Claims] 1. A washer used for fixing the head of an uncurtain don, wherein two front and rear surfaces of the plate laminate are formed non-parallel and a center hole passing through the front and rear surfaces is opened. A convex portion is provided on one surface of one plate, and a surface of the other plate that is in contact with the one plate is
Providing a concave portion to be fitted with the convex portion , installing a transmission cylinder on the upper portion of the plate, and projecting a guide for positioning the transmission cylinder from the upper surface of the plate.
It was characterized by providing in the anchor installation adjustment washer. 2. A washer used for fixing a head of an uncurtain-don, wherein a front and a back are formed non-parallel, and two plate laminates having a center hole opened through the front and the back. A projection for restricting the movement of the other plate is provided on the outer edge of one of the plates , a transmission cylinder is installed above the plate, and a guide for positioning the transmission cylinder is projected from the upper surface of the plate.
It was characterized by providing in the anchor installation adjustment washer. 3. A washer used for fixing an uncurtain don's head to a head, wherein two plate laminates having front and rear surfaces formed in non-parallel and having a center hole opened through the front and rear surfaces. A projection for regulating the movement of the other plate is provided on the inner edge of one plate , a transmission cylinder is installed on the upper part of the plate, and a guide for positioning the transmission cylinder is projected from the upper surface of the plate.
It was characterized by providing in the anchor installation adjustment washer. 4. The adjusting washer according to any one of claims 1 to 3 , wherein the pipe that is inserted into the center hole and the pipe that is positioned at the center of the hole are formed by a center. An adjustment washer for anchor installation, which is provided on the inner peripheral surface of the hall.