JPH09298960A - Auxiliary anchor for underground support device for planted tree - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the subject auxiliary anchor about 50% lower in price than conventional small-volume anchors. SOLUTION: This auxiliary anchor has such scheme that two resistance plates are arranged in parallel with each other into a parallel-arranged resistance plate 23, a strike plate 29 is fixedly set on the rear end of the centerline of the plate 23 through penetrating the respective resistance plates, a rod receiving plate 28 is fixedly set on the tip of the centerline, and strike rods 27 are, in turn, fixedly set on the receiving plate 28, respectively, and projected by an intended length from the rear of the resistance plate 23, and upwardly extended rods 25 each suspended downward with the rear end curved are fixedly set on the strike rods 27, respectively. The flat plate surface shifted somewhat apart from a midway point of the resistance plate 23 toward the tip is provided with an opened aperture 24, and an auxiliary rod 26 is fixedly set on a central point between the centerline and the outside of the resistance plate 23. In straight-line striking, the strike rods 27 are stricken with a tool, while in expansive striking, the upwardly extended rods 25 are held on relevant bars and the strike plate 29 on the rear end of the resistance plate 23 is stricken to effect expansive opening.

Description

Detailed Description of the Invention

[0001]

[Industrial application] In the underground support method for planted trees, piles made of equilateral angle steel that are placed on the sides of multiple equidistant points of the root pot, especially in soft geology, may cause insufficient bearing capacity of the pile. In this case, it is a technology relating to a special anchor that is placed along the pile to reinforce the yield strength of the pile.

[0002]

2. Description of the Related Art Although the prior art relating to the present application is a stay anchor, the stay anchor is originally mainly used for holding a branch line of an electric pole. The tensile strength is about 3 ton or more and about 10 ton, and the member strength corresponding to the tensile strength is required to be considerable, and the price is also considerably high. However, after that, there were requests to keep orchard shelves, prevent the collapse of vinyl houses, and moor temporary housing in the event of a disaster.

However, the tensile strength required for this new anchor is from 2 ton to 3 ton, and unlike a utility facility such as a utility pole, it has a small budget, so that it should be constructed at a special low price and constructed. Simplicity is required. Here, two parallel resistance plates (1) as shown in Figure 1 of the attached drawings.
Was used as a means to expand the soil in both directions in the ground.

Since such an anchor construction means is a driving method, it is necessary to drive it straight to the planned depth in the ground and suddenly expand it to obtain the state shown in FIG. Because of this, special consideration is required in the structure. Therefore, in the technique, as shown in the side view of FIG. 2A and the front view of B, two rectangular steel plates having the same shape are formed in parallel as resistance plates (1), and the rear end portion is formed as a coupling groove (5) to form an integral body. However, the resistance plate (1) is extruded as ribs (6) on the respective longitudinal centerlines for the reason described later.

Further, the rib (6) is equally divided into several pieces on the length thereof so as to cut out the refraction groove (7), and on both sides of the rib (6) at the same position as the refraction groove (7). A bent window (8) is cut in the plane of the resistance plate (1), and ribs (6) at the tip of each node formed by the refraction groove (7) are close to the refraction groove (7) on the tall surface. At the very least, the upper pulling support plates (9) are fixed to each other, and the upper pulling rods (2) are fixed to each of them.

Thus, the upper pull rod (2) is integrally connected to the pull rod (3) at the rear end, and the auxiliary rod (4) is fixed to the rear end of the integrated resistance plate (1). However, the auxiliary rod (4) is made shorter than the rear end of the tension rod (3) for the reason described later.

With the above-mentioned structure, the technique is as described above, and until the deep underground, as shown in FIG. 2, two resistance plates (1) are laid straight in parallel and then suddenly when the predetermined position is reached. As it does not spread, the upper backing plate (9) fixed to the outer side of the tip of the resistance plate (1) is attacked while making sure that it does not spread during the straight running process. Since it suddenly spreads out, it is impossible to use ordinary means.

Therefore, in this technique, a core metal (10) made of a flat plate having a sharp tip as shown in FIG. 3 is inserted into a groove formed by a rib (6), and a rear end of the required amount of the rib (6) is formed. It has a structure that protrudes as an extra length from the rear end.
In addition, as shown in the cross-sectional view of FIG. 5 and the side view of FIG. 6, the means for straight-line driving is a driving pipe (1
The interrupting part (12) is machined so that the resistance plate (1) having the front end of (1) extending from the upper receiving plate (9) to the rear end of the resistance plate (1) can be inserted. When the driven pipe (11) is passed through and the rear end of the driven pipe (11) is hammered to drive it, the attacked portion becomes the upper pulling support plate (9), so that it is absolutely expanded. There is no fear of doing it.

Thus, as shown in FIG. 7, in the expansion driving, the lot hammer (13) having a weight attached to the tip is inserted into the driving pipe, and this time, the impact is directly applied to the rear end of the resistance plate (1). However, since the core metal (10) projecting an extra length from the rear end of the rib is hit in front of it, as shown in FIG. 3 to FIG.
0) alone jumps out of the resistance plate (1) and spreads the tip of the resistance plate (1) before hitting the resistance plate (1), and the resistance plate (1) which is subsequently driven follows the traveling path of the tip part. Completely expanded, and as the expansion progressed, the circular eyes of the auxiliary rod (4) and the tension rod (3) matched, and the fully expanded state was confirmed on the ground surface. In this case, however, the cored bar (10) becomes an abandoned child because there is no way to collect it in the state of FIG.

[0010]

The prior art described above requires a tensile strength of 2 ton to 3 ton on its own, and the purpose of use is for orchards, vinyl houses and temporary housing, so a certain amount of purchase is required. The price is set and it is currently used in many countries.

However, the anchor of the present invention, as shown in FIG. 8, is a soft geological structure for an equilateral angle steel resistance pile (21) for immobilizing and placing the root pot (20) in an underground support device for planting trees. Since it is an auxiliary mission when the yield strength is insufficient, the required tensile strength is about 1 ton, and the purchase price is also about half the price of the conventional technology. This is hard to get along with.

[0012]

The present invention will be described below with reference to the accompanying drawings. 9A is a side view before construction of the present invention, and B is a side view after construction,
The details are shown in the plan view of FIG. 10, the front view of FIG. 11, and the side view of FIG.
The parallel resistance plate (23) is a parallel resistance plate, and the parallel resistance plate (23) is notched at the rear end so that the auxiliary lot (26) is fixed to the parallel resistance plate (23) so that the parallel resistance plate (23) is at the rear end portion. It is united. Then the parallel resistance plate (2
An appropriate amount of a flat plate surface slightly lower than the upper middle side of 3) is cut to form an incision window (24), and a lot receiving plate (2) is provided on both outer ends of the parallel resistance plate (23) on the center line of the length. 28) is fixed to the lot receiving plate (28), and an impact lot (27) having a length slightly longer than the central portion of the parallel resistance plate (23) is fixed to the lot receiving plate (28), and the impact lot (28) is further fixed. In 27), the upper side is fixed to the upward drawing lot (25) having a curved upper side. Incidentally (29)
Is a strike plate which is fixed to the rear end of the parallel resistance plate (23) on the length center line.

[0013]

OPERATION AND EXAMPLES The present application, which has the above-mentioned structure as the means for solving the problems, has a plan view of FIG. 13 and a side view according to FIG. 14, which relates to a driving pipe as a driving tool. A storage pipe (31) is fixed on both sides, and an attacking rod (32) is attached to the inside of the storage pipe (31) up to its middle side.
In addition, the rear end is made to project from the storage pipe (31) to an excessive length, and the entire length of the projection is fixedly integrated with the side surface of the driving pipe (30), and is also driven in the direction perpendicular to the storage pipe (31). An interrupt groove (34) capable of accommodating the parallel resistance plate (23) is cut at the tip of the insert pipe (30).

The construction procedure using such a tool is shown in FIG.
5 As shown in the side view, the storage tube (31) is attached to the attack lot (27).
Is inserted, the hitting lot (27) and the hitting rod (32) are brought into close contact with each other in the housing pipe (31), and the middle of the parallel resistance plate (23) is housed in the interrupting groove (34). Here, the rear end of the driving pipe (30) is hit with a hammer. By this operation, the attack lot (27) can be driven by the lot receiving plate (28), so that the parallel resistance plate (23)
It goes straight without absolutely expanding.

In this way, the rear end curved portion of the upward pulling lot (25) gradually becomes the locking rod (2) of the resistance pile (21) according to FIG.
The rear end curved portion is hooked on the locking rod (22) at a position close to 2), and further, the interrupt groove (34) and the parallel resistance plate (23).
Pull out the length of the interrupt groove (34) to release the fitting with
This time, change the attacked part and change the driving pipe (3
0), the lot hammer (33) is inserted, and the striking plate (29) at the rear end of the parallel resistance plate (23) is hit by the lot hammer (33).
Up-draw lot (25) locked to the locking rod (22) like
As a result, the expansion has to be forced, and the expansion is started immediately. At the same time, the auxiliary lot (26)
All the construction is finished when the rear end of the upper lot coincides with the rear end of the upper lot (25).

[0015]

The greatest feature of the present invention is that the expansion operation is not performed independently, but is performed with the aid of the resistance piles (21), and therefore the drastic simplification of the structure becomes possible. At the same time, the production area is about 50% due to the reduction of the flat area of the parallel resistance plate (23) due to the reduction of the tensile strength, and the ground resistance at the time of driving is also reduced due to the simplification of the structure. This was a great effect, as it was greatly reduced and the labor cost required for driving was halved.

[Brief description of drawings]

FIG. 1

FIGS. 7A to 7C are explanatory views of a conventional technique.

FIG. 8 is hereinafter referred to as the present invention.

FIG. 8 is an explanatory diagram showing a relationship between a root pot, a resistance pile, and the present invention.

9A and 9B show the outline of the present invention, and the details will be described below with reference to FIG.

FIG. 10 is a plan view of the present invention.

11 is a front view of FIG.

12 is a side view of FIG.

FIG. 13 is a plan view of a driving pipe required for construction.

FIG. 14 is a side view of FIG.

FIG. 15 is a posture when driving straight.

FIG. 16 is a posture at the time of expanding and setting.

FIG. 17 is a posture at the time of completion of construction.

[Explanation of symbols]

 20: Root bowl 21: Resistance pile 22: Locking rod 23: Parallel resistance plate 24: Cutting window 25: Upward lot 26: Auxiliary lot 27: Attack lot 28: Lot receiving plate 29 ... Attacking plate 30 ... Driving pipe 31 ... Storage pipe 32 ... Attacking rod 33 ... Lot hammer 34 ... Interruption groove

Claims (2)

[Claims] 1. Two parallel resistance plates are arranged in parallel to form a parallel resistance plate (23), and an attack plate (29) is fixed to the rear end of the lengthwise center line thereof by penetrating each resistance plate, Similarly, a lot receiving plate (28) is fixed to the front end of the length center line, and an attacking lot (27) is fixed to each of the lot receiving plates (28). Then, an upward pulling lot (25) having a curved rear end and hanging down is fixed to the hitting lot (27). Further, a cutting window (24) is cut on a flat plate surface slightly closer to the tip than the middle length of the parallel resistance plate (23), and the center between the length center line and the outside of the parallel resistance plate (23) is further cut. It has a structure in which an auxiliary lot (26) is fixed to the part, and a tool is used for striking lot (2
7), and the expansion rod (25) is locked to the locking rod (22) at the time of expansion driving, and the rear end struck plate (29) of the parallel resistance plate (23) is struck and expanded. Auxiliary anchor for underground support equipment for planted trees, characterized by being hardened. 2. A storage pipe (31) is fixed to both sides of the tip of a driving pipe (30) having a length corresponding to the driving depth of the anchor, and the storage pipe (31) is added to the middle side of each storage pipe (31). Shooting stick (32)
The striking rod (32) is made to protrude from the storage pipe (31) by a length equivalent to the amount that can be inserted into the storage pipe (31), and this portion is firmly connected to the outer periphery of the driving pipe. A driving tool for auxiliary anchors for underground pillars of planted trees, characterized by being fixed to