JP3035982U - Bi-directional proof stay anchor - Google Patents

Abstract

(57) [Abstract] (Correction) [Problem] Conventional means for connecting a spreading resistance plate in the ground and the ground surface are all made of steel rods capable of supporting tensile force,
Since the lower pressure resistance was equal to none, the stay anchor for only the upper pulling load is dealt with the proof strength in both the upper and lower directions. A bending resistance plate (13) is fixedly integrated on a support plate (9) in an excavated hole and fixed on the bottom of the hole, and a pile pipe (11) is provided.
After inserting the driving pipe 15 into the rear end of the bending resistance plate 13 and setting it at the rear end of the bending resistance plate 13, the driving force of the driving pipe 15 is expanded to activate the bending resistance plate 13, and the rear end of the pile pipe 11 and the driving pipe 15 are driven. The rear ends of the curved resistance plate 13 coincide with each other to confirm the pre-expanded state of the curved resistance plate 13, the driving pipe 15 is removed, and the excavation hole is also backfilled to complete the down pressure state. When the upper pulling position is set, the upper pull ring 16 is connected to the connecting screw of the pile pipe 11.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The present application is a technique relating to a staple anchor that can be dealt with when proof stress in both the upper and lower directions is required when transplanting a tree.

[0002]

[Prior art]

 According to the prior art of the present application, for example, as shown in the side view of FIG. 7 of the accompanying drawings, a rectangular steel plate is used as a resistance plate (1), and the length center line is extruded as a rib (2). In (2), the notches (3) are machined so that the length is evenly spaced and the desired number of nodes is obtained. An upper pulling plate (4) is fixed to each of (3), and an upper pulling bar (5) is connected to each of the upper pulling plates (4). ), The structure is such that it is fixed to the pulling rod (6) connected to the rear end of the connecting ring (7) in a sliding state. Reference numeral (8) is a retaining ring, which is fixed to the pulling rod (6) below the connecting ring (7) by a necessary amount.

In the technology of such a structure, in the process of being driven to a planned depth in the ground, a special tool is used to strike the leading edge of the upper pulling plate (4) to make it go straight. When the depth is reached, the attack site is changed to the rear end of the resistance plate (1) and the resistance plate (1) is expanded as shown in Fig. 9 due to the frictional resistance with the outer soil. The coupling ring (7) is slid and stopped by the locking ring (8) so that the coupling ring (7) can cope with the upward pulling force.

[0004]

[Problems to be solved by the device]

 As explained above, all of the previously developed technologies including this technology are compatible with the tension from the ground, so all the means for connecting the expansion resistance plate (1) in the ground to the ground surface are tensioned. It is due to the steel rod that can cope with the attractive force, and this is not a structure that opposes the proof stress below the surface, so the underpressure opposition force is equal to nothing.

[0005]

[Means for Solving the Problems]

 As shown in the attached drawing FIG. 1 side view and FIG. 2 plan view, first, the support plate (9) for supporting the resistance plate (1) that can be expanded into the ground is matched with the round hole for excavation In addition to the circular plate, a reinforcing plate (10) is fixed to the lower surface so as to match the circumference, and a pile pipe (11) capable of withstanding a lower pressure is provided at the center of the supporting plate (9). It is fixed, but the connecting screw (12) is fixed inside the rear end of the pile pipe (11).

Next, the plan view of FIG. 3 and the side view of FIG. 4 relate to the resistance plate, in which a lengthwise center line of a rectangular steel plate is extruded into a reinforcing rib (14) over the entire length, and 2 The curved resistance plates (13) are bent to form leaves, and each of the curved resistance plates (13) is curved at its tip from the substantially central portion due to its length.

[0007]

[Action and Examples]

 In the present application, as shown in FIG. 5, first, a construction hole is excavated with an earth auger, and a curved resistance plate (13) is fixedly integrated into the hole, and the curved resistance plate (13) is fixedly fixed on the bottom of the hole. As shown in 6, the driving pipe (15) is inserted into the pile pipe (11) and placed at the rear end of the bending resistance plate (13), and the driving pipe (15) is struck to bend the bending resistance plate (13). ) Is started, and finally the planned expansion of the curved resistance plate (13) is finished as shown in FIG. 7, at which point the rear end of the pile pipe (11) and the rear end of the driving pipe (15) are At the same time, the planned expansion state of the curved resistance plate (13) was confirmed, the driving pipe (15) was removed, and the excavation hole was backfilled. If the upper pulling position is set, the upper pull ring (16) is connected to the connecting screw (12) of the pile pipe (11).

[0008]

[Effect of the invention]

 According to the present application, all the stay anchors that have conventionally been targeted only for the upper pulling load have a new structure capable of handling the proof stress in both the upper and lower directions.

[Submission date] October 29, 1996

[Procedure amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0002

[Correction method] Change

[Correction contents]

[0002]

[Prior art]

According to the prior art of the present application, for example, as shown in the side view of FIG. 8 of the accompanying drawings, a rectangular steel plate is used as a resistance plate (1), and the length center line is extruded as a rib (2). In (2), the notches (3) are machined so that the length is evenly spaced and there are several desired sections, and the middle part of the length is bent into two lobes. An upper pulling plate (4) is fixed to each of (3), and an upper pulling bar (5) is connected to each of the upper pulling plates (4). ), The structure is such that it is fixed to the pulling rod (6) connected to the rear end of the connecting ring (7) in a sliding state. Reference numeral (8) is a retaining ring, which is fixed to the pulling rod (6) below the connecting ring (7) by a necessary amount.

[Brief description of the drawings]

FIG. 1 is a side view showing a support plate (9) and a pile pipe (11).

FIG. 2 is a plan view of FIG.

FIG. 3 is a plan view of a curved resistance plate (13).

FIG. 4 is a side view of FIG.

FIG. 5 shows an implementation state of the present application.

FIG. 6 also shows an implementation state of the present application.

FIG. 7 also shows an implementation state of the present application.

[Explanation of symbols]

 Reference numeral of the prior art 1 ... Resistance plate 2 ... Rib 3 ... Notch 4 ... Upper pulling plate 5 ... Upper pulling rod 6 ... Stretching rod 7 ... Coupling ring 8 ... Locking ring Technical code 9 …… Support plate 10 …… Reinforcement plate 11 …… Pile pipe 12 …… Coupling screw 13 …… Curved resistance plate 14 …… Reinforcing rib 15 …… Driving pipe 16 …… Updraw ring

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[Procedure amendment]

[Submission date] October 29, 1996

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Fig. 8

[Correction method] Added

[Correction contents]

FIG. 8 is a side view of the prior art.

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] Figure 9

[Correction method] Added

[Correction contents]

FIG. 9 is a side view showing a spread state of the resistance plate (1) in the prior art.

Claims (1)

[Utility model registration claims] 1. A support plate (9) is fixed to the tip of a pile pipe (11) having a sufficient downward pressure strength with a connecting screw (12) fixed to the inside of the rear end, and a curved resistance plate (13) is struck. In this case, the driving pipe (15) is inserted into the pile pipe (11) for driving, and at the end of driving, the rear end of the driving pipe (11) and the rear end of the driving pipe (15) are aligned with each other. The upper and lower bidirectional proof stay anchors in which the lower pulling posture is established after confirming the installation and the upper pulling ring (16) is connected to the connecting screw (12) of the pile pipe (11) in the upper pulling position.