JP2003105760A - Built-up universal anchor pedestal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a built-up universal anchor pedestal, capable of reducing the labor and cost for movement and keeping in a simple mechanism and having high recyclability to be economical and convenient for use. SOLUTION: This anchor pedestal is formed by an anchor fixing surface of an anchor placed at a designated placing angle in the side wall ground, a bearing plate fitted to the anchor fixing surface to fix the anchor, a centering mechanism disposed between the bearing plate and the anchor fixing surface to adjust the angle of the bearing plate by pressing the bearing plate to the anchor fixing surface, two pedestal plates fixed to the side wall ground, and a plurality of fastening members for fastening the pedestal plate to be assembled and disassembled.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anchor fixing device used at a mountain fastening construction site or the like, and more particularly to an assembling type universal anchor pedestal that can be easily assembled and disassembled on site.

[0002]

2. Description of the Related Art Conventionally, when the earth retaining work site is on a sloping ground or is large-scale, in order to prevent the surrounding ground from collapsing, mountain retaining such as hammering piles into the side wall ground is performed. The anchoring method is applied to the mountain retaining wall, and the anchoring method is used to support the abdomen through the anchor pedestal. The appropriate placement angle of the anchor varies depending on the situation of the construction site, the geology, or the tensile force of the anchor, etc. The placement angle is usually set in the range of 30 ° to 45 ° vertically upward with respect to the horizontal line. It

The conventional anchor pedestal is mounted by being positioned by hook grooves on a waving made of two upper and lower H-shaped steels fixed to a mountain retaining wall, and an anchor head is inserted into the upper end of the pedestal. A bearing plate having an anchor fixing surface corresponding to the installation angle and having a through hole for allowing the anchor to pass through is mounted on the anchor fixing surface. The center hole jack is used to pull the anchor upward in the axial direction, and the anchor is fixed in a tensioned state on the bearing plate via a fixing member such as a wedge attached to the anchor head.

Further, as another conventional example, it is possible to cope with two types of anchor driving angles.
There is a "ground anchor fixing device" of Japanese Patent No. 065. According to this, a fixing hardware (anchor pedestal) having an anchor fixing surface set at an intermediate angle between two types of anchor driving angles (not shown), and one pressure plate surface is the same as the other pressure plate surface with respect to the other pressure plate surface. It is constructed by combining with a bearing plate having an inclination angle which is half the angle corresponding to the difference in the anchor driving angle of each type and having a through hole through which the anchor is inserted.

[0005]

However, such a conventional technique has the following drawbacks. (1) In order to support various anchoring angles depending on the situation of the construction site, it is complicated to prepare various types of fixing hardware (anchor pedestals) having an anchor fixing inclination angle corresponding to each anchoring angle. There was (2) Even with the method using the "ground anchor fixing device" disclosed in JP-A-7-158065, the number of fixing hardware (anchor pedestal) corresponding to each driving angle is reduced to half. (3) In any case, it was uneconomical to use, since it was necessary to replace the anchoring metal fittings (anchor pedestals) corresponding to the anchor placement angle at the construction site, and most of them were disposable.

(4) In order to solve these problems, the applicant of the present application has proposed that the "self-aligning type anchor fixing device" having a structure in which the bearing plate is automatically centered at the anchor driving angle (Japanese Patent Application No. 2).
No. 001-103174) has been filed, but in order to reuse it, a space for movement and storage is necessary, and there is room for improvement such as heavy work transportation work.

In order to solve the above-mentioned conventional problems, the object of the present invention is to reduce the labor and cost for moving and storing with a simple mechanism, and it is highly recyclable, economical, and easy to use. To provide an anchor pedestal.

[0008]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides an anchor fixing surface of an anchor which is installed on a sidewall ground with a predetermined installation angle, and is attached to the anchor fixing surface. A bearing plate for fixing the anchor, a centering mechanism provided between the bearing plate and the anchor fixing surface, for adjusting the angle of the bearing plate by pressing the bearing plate to the anchor fixing surface, and a sidewall ground. It is characterized in that it comprises two pedestal plates that are fixed and a plurality of fastening members that fasten the pedestal plates so that they can be assembled and disassembled.

Further, the two base plates have the same shape.

Further, the fastening members are provided at one location above the centering mechanism of the pedestal plate and at two locations or three locations below, and all of them are fixed between the sidewall ground and the pedestal plate. It is characterized in that it is outside the triangle formed by the midpoint of the pedestal plate mounting surfaces of the two upper and lower waged pedestals and the center point of the centering mechanism.

Further, the fastening member is provided with a positioning mechanism for fitting and positioning the pedestal plate at both ends, and a fixing mechanism for fixing the pedestal plate at both ends thereof.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described in detail below with reference to the accompanying drawings. As shown in FIG. 1, an assembly-type universal anchor base 10 according to an embodiment of the present invention is mounted on a sidewall ground 50 at a predetermined driving angle (θ1).
Up to [theta] 2), the anchor fixing surface 11d of the anchor 20 is installed, and the bearing plate 12 and the anchor fixing surface 11d for fixing the anchor 20 inserted in the anchor fixing surface 11d.
Is provided between the pressure bearing plate 12 and the anchor fixing surface 11d.
And a centering mechanism 13 that adjusts the angle of the bearing plate 12 so as to be in close contact with the anchor head 21 by being pressed against, and the uprising members 30 arranged vertically on the sidewall ground 50,
It is composed of two pedestal plates 11 fixed via 31 and a plurality of fastening members 14 which can be engaged and disengaged so that the pedestal plate 11 can be assembled and disassembled. That is, except for the aligning mechanism 13, the pedestal plate 11, and the fastening member 14, the other configurations are the same as those of the conventional anchor pedestal.

Placing angle of the anchor 20 (θ1 to θ2)
Is normally tilted vertically upward, as shown in FIG.
Almost minimum casting angle θ with reference to horizontal line H₁≒ 30 °
Maximum setting angle θ_TwoIt is set in the range of ≈45 °. Ann
As shown in FIGS. 1 and 2, the car pedestal 10 includes two pedestals.
The seat plate 11 is connected by a plurality of three or four connecting members 14.
It is a box structure that is tied, and the adjustment container is
Hooks are placed on the recliners 30 and 31 fixed via the cleats.
It is positioned and attached by the groove 11a. Pedestal
Installed at the upper part of the opposite side of rate 11 uprising 30, 31
The anchor fixing surface 11d is a center point of anchor fixing.
Fixing of the lower half part below the center point A1 of the aligning mechanism 13
Surface 11d₁And the upper half fixed surface 11d above_Two2 minutes
The anchoring angle θ of each anchor 20₁≒ 30 °, θ
_Two≈45 ° anchor central axis L₁, L_TwoAlmost right angle to
It is formed at (90 °).

The centering mechanism 13 includes the pedestal plates 11 on both sides.
The anchor fixing surface 11d of the anchor anchoring angle (θ1 to θ
2) The seat 11e formed in a substantially semi-circular hole surface shape (half-moon shaped concave sectional shape) centered on the center point A1 of the centering mechanism 13 orthogonal to the in-plane including the anchor 20 described below is predetermined. Is formed on the bearing plate 12 that is fixedly supported at an angle of
Pin-shaped bearing 12a that rotates (fits) along
It consists of and.

As shown in FIG. 1, the pressure bearing plate 12 is provided with a through hole 12b through which the anchor 20 is inserted substantially perpendicular to the pressure bearing surface on the upper surface thereof, and is disposed on the anchor fixing surface 11d of the anchor base 11. The anchor 20 at a predetermined angle (θ1
.About..theta.2) at least the lower half part thereof has two left and right bearing parts 12a formed in a substantially semi-cylindrical (half-moon shape) shape orthogonal to the plane including the anchor setting angles (.theta.1 to .theta.2). With such a configuration, the pressure bearing plate 1 is installed in the receiving seat 11e formed in the pedestal plate 11 having a concave half-moon shape.
The second support portion 12a is inserted from the upper opening by a short fit and fitted.

Then, the upper end of the anchor 20 set as described above is pulled upward by the center hole jack (not shown) in the direction of the anchor axes (L1 to L2), and a fixing member such as a wedge mounted in the anchor head 21 ( The anchor 20 is fixed in a tensioned state on the pressure support plate 12 via (not shown). In this case, as the tension of the anchor 20 increases, the pressure bearing plate 12 causes the bearing plate 12 to drive the anchor 20 at angles (θ1 to θ).
2) The centering mechanism 13 so as to perform self-centering, that is, the relative cylindrical shape of the bearing portion 12a of the pressure plate 12 and the substantially half-moon shape of the seat 11e of the pedestal plate 11 relative to each other. The size and the material relationship suitable for the sliding bearing are selected, or a lubricating means (not shown) such as applying a lubricant to the abutting portion of the bearing portion 12a and the seat 11e is used to appropriately set.

The assembly-type universal anchor base 10 of the present invention described above has the same shape as shown in FIGS.
One pedestal plate 11 and three or four fastening members 14
It consists of and.

In this case, the mounting holes 11f of the fastening members 14 provided on the pedestal plate 11 are provided at one position above the receiving seat 11e of the pedestal plate 11 and at two or three positions below, and all of them are provided. As shown in FIG. 1, the center points A2 and A3 of the mounting surfaces of the pedestal plates 11 of the upper and lower two uplifts 30 and 31 fixed between the sidewall ground 50 and the pedestal plate 11 and the centering mechanism. It is desirable to be outside the triangle A formed by the center point A1 of 13. This serves as the main action / support point for the axial force applied to the anchor 20 A
It is better to provide the attachment position (attachment hole 11f) of the fastening member 14 on the outer side of the triangle A formed by connecting points 1, A2, and A3.
This is because the pedestal plate 11 can be more firmly and stably fastened and configured.

As shown in FIG. 4, the fastening member 14 has an enlarged diameter stepped portion 14b, which is slightly larger than the mounting hole 11f for positioning the fitting portion 14e which is fitted to the mounting hole 11f of the pedestal plate 11, at both ends. A connecting rod 14a including a positioning mechanism and a fixing mechanism including a screw portion 14c for fixing the pedestal plate 11 to both ends thereof,
It is composed of a nut member 14d belonging to a fixing mechanism that engages with the screw portion 14c and fixes the base plate 11.

The nut member 14d, as shown in FIG.
It is formed in a substantially rhombic shape having two parallel surfaces that can be easily grasped by a tool such as a spanner.

[0021]

According to the present invention described in detail above,
Since the assembly-type universal anchor pedestal is composed only of the two pedestal plates and the three or four engagement / disengagement fastening members, the following excellent effects which are not available in the past can be obtained. (1) The storage space is minimized, the handling is easy, and the anchor pedestal can be easily assembled and disassembled at the construction site. (2) Recyclability can be greatly improved by using one anchor pedestal for various construction sites with different anchor placement angles, which can save resources and improve economic efficiency.

[Brief description of drawings]

FIG. 1 is a side view of a prefabricated universal anchor base according to an embodiment of the present invention.

FIG. 2 is a perspective view of an assembly-type universal anchor base according to an embodiment of the present invention.

FIG. 3 is a perspective view of a pedestal plate of the assembly-type universal anchor pedestal of the present invention.

FIG. 4 is an explanatory view of a fastening member of the assembly-type universal anchor base of the present invention.

5 is a view taken along the line BB of FIG.

[Explanation of symbols]

10 Assembly Type Flexible Anchor Pedestal 11 Pedestal Plate 11a Hook Groove 11d Anchor Fixing Surface 11e Receiving Seat 12 Pressure Bearing Plate 12a Supporting Part 12b Through Hole 13 Alignment Mechanism 14 Connecting Member 14a Connecting Rod 14b Step 14c Screw Part 14d Nut Member 14e Fitting Joint 20 Anchor 21 Anchor head 30, 31 Waist 50 Side wall ground A Triangle A1 Center point A2, A3 Centering mechanism Midpoint H of each pedestal plate mounting surface of hoist 30, 31 (reference) horizontal line L1, L2 Anchor (center) axis θ ₁ Minimum driving angle θ ₂ Maximum driving angle

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Yutaka Kaneko             1-29-15 Chuo, Nakano-ku, Tokyo Structural work             Inside the corporation F-term (reference) 2D041 GA01 GC11 GD01

Claims (4)

[Claims] 1. An anchor fixing surface of an anchor that is installed on a sidewall ground at a predetermined installation angle, an anchor fixing surface that is attached to the anchor fixing surface and fixes the anchor, and the supporting plate and the anchor fixing surface. A centering mechanism that is provided between the pressure bearing plate and the anchor fixing surface to adjust the angle of the pressure bearing plate, two pedestal plates fixed to the sidewall ground, and the pedestal plate. An assembly-type universal anchor base characterized by comprising a plurality of fastening members that are fastened so that they can be disassembled. 2. The assembly-type universal anchor base according to claim 1, wherein the two base plates have the same shape. 3. The fastening member is provided at one location above and two or three locations below the centering mechanism of the pedestal plate, all of which are fixed between the sidewall ground and the pedestal plate. The assembly-type universal anchor according to claim 1, wherein it is located outside the triangle formed by the midpoint of each of the two upper and lower raised pedestal plate mounting surfaces and the center point of the centering mechanism. pedestal. 4. The fastening member is provided with a positioning mechanism that fits and positions the pedestal plate at both ends, and a fixing mechanism that fixes the pedestal plate at both ends thereof. The assembly-type universal anchor pedestal according to claim 1, claim 2, or claim 3.