JPH1181307A - Spiral anchor made of flat bar and the same provided with mooring and whirl-stopping member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a spiral anchor which is made of a flat bar with a rectangular cross section to form a wide double-spiral groove face and specified in the aspect ratio and the twisting pitch and which increases workability and capacity and reliability as an anchor by combination of a mooring or whirl- stopping member used in common. SOLUTION: The upper part of a flat bar member 1 is used for an anchor head 1a provided with a mooring means 2 for a rope or the like and the lower part of the anchor head 1a is twisted to form wide spiral groove faces 1b, 1b at both side faces of the flat bar member 1 and also form a sharpened screwing-in end 1c at the lower end of the spiral grooves. The aspect ratio w/d of the width (w) of the flat bar with a rectangular cross section and the thickness (d) is designed within the range shown in 2<=w/d<=10 and the twisting pitch (p) is set as 7-20 cm.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spiral anchor made of a strip and a mooring / rotation stopping member suitable for anchors such as ropes and wire rods of a rock fall prevention net or various tents constructed on a slope. The present invention relates to a spiral anchor made of an attached strip.

[0002]

2. Description of the Related Art Conventionally, in the construction of rock fall prevention nets and the stretching of various tents as described above, when anchoring these ropes or wire rods of wire netting to the ground, the upper end of a circular cross-section steel rod is used. There is generally a driving anchor in which a portion is formed to have a large diameter or a ring is provided to form an anchor head such as a rope, and the driving head is driven into the ground and the rope or wire mesh wire is moored to the anchor head by appropriate means. . Further, if necessary, a spiral groove is provided on the peripheral surface of the steel rod to increase the frictional force with the soil, and a pulling resistance corresponding to a pulling load received from a rope or the like, that is, a structure in which the anchor performance is enhanced. Anchors are also used. Further, the applicants have developed and proposed a driving anchor having a structure in which a steel rod having a transverse polygonal shape is twisted to form a large number of spiral groove surfaces on a peripheral surface to enhance anchor performance.

[0003]

As described above, the conventional driving anchor is made of a steel rod having a relatively small cross-sectional area and a circular cross section or a regular polygonal cross section. There is a limit to the force, that is, the tensile resistance. Also, even if spiral grooves are provided on the peripheral surface or a number of spiral groove surfaces are formed in a transverse regular polygonal shape, there is a limit to increase in the peripheral area, and soil around the driving portion is disturbed at the time of driving. There is a problem that the frictional force is reduced and the tensile resistance cannot be effectively increased.

SUMMARY OF THE INVENTION The present invention has been developed to solve the above-mentioned problems. The object of the present invention is to form a wide spiral groove surface by twisting a strip material (rectangular cross section). In addition to specifying the aspect ratio and twist pitch of this transverse rectangular shape, and further combining the mooring and rotation stopping member, it facilitates screwing and driving and effectively enhances the tensile resistance, along with workability. An object of the present invention is to provide a strip-shaped spiral anchor with improved anchor performance and reliability and a strip-shaped spiral anchor with a mooring and rotation-stopping member.

[0005]

According to the present invention, an upper portion of a strip is used as an anchor head having mooring means such as a rope, and both sides of the strip are formed into a wide spiral groove surface by twisting a lower side of the anchor head. In addition to forming the spiral groove, the lower part of the spiral groove is formed into a sharp screw-in end, which is characterized by a strip-shaped spiral anchor. Twisted to form both wide spiral groove surfaces to increase friction and engagement force with the soil, and to make the lower part of the spiral groove a sharp screwed end for easy screwing and installation. It can be easily screwed in without disturbing the soil at the casting site, and the pull-out resistance can be effectively increased due to a significant increase in the anchor area and friction with the soil and an increase in the engaging force. This improves anchor performance and reliability as well as workability.

In the above-mentioned spiral anchor made of a strip, the aspect ratio w / d of the width w and the thickness d of the transverse rectangular shape of the strip is set to 2 ≦ w / d ≦ 10, and the twist of the strip is twisted. It is characterized in that the pitch P is configured to be 7 to 20 cm,
The aspect ratio of the strip and the twist pitch of the strip ensure the anchor strength is appropriate in accordance with the soil hardness of the ground, etc., and effectively reduce the anchor circumference and friction with the soil and the supporting force. In addition to making it possible to perform screwing and driving more smoothly and effectively preventing turbulence of the soil around the driving part and further increasing the pullout resistance, workability and anchor performance, Reliability is further improved.

Further, in the above-mentioned spiral anchor made of a strip, an anchor head provided with a rod mounting hole in place of the anchoring means, and an upper plate portion having a fitting insertion hole corresponding to a transverse rectangular shape of the anchor head, And a mooring / rotation stop member having a driving leg vertically suspended from at least one end of the upper plate portion,
It has a feature in a spiral anchor made of a strip with a mooring and rotation stopping member combined with a retaining rod for a mooring and rotation stopping member to be mounted in a rod mounting hole, and as described above, the anchor performance and reliability as well as the workability of the anchor After raising the anchor, further, after the anchor is placed, the driving leg of the mooring and rotation stopping member is driven into the ground, and a rope or the like is moored. In addition, when a pulling load is applied from a rope or the like, the anchor performance and reliability are further improved, for example, the rotation of the anchor is prevented by the mooring / rotation stopping member and the pullout resistance is further increased.

In the above-mentioned strip plate spiral anchor, an anchor head provided with a retaining projection instead of the anchoring means, an upper plate portion with a guide hole corresponding to a rectangular cross section of the spiral groove, and an upper plate portion It has a feature in a spiral anchor made of a strip with a mooring / rotation stopping member which is combined with a mooring / rotation stopping member having a driving leg portion vertically provided at at least one end portion, and a guide hole of the mooring / rotation stopping member is provided in the anchor. When fitted into the spiral groove, the driving leg of the mooring and rotation stop member is driven into the ground, and the anchor head is driven,
When a proper rotational force is applied to the anchor by the guide of the spiral groove by the guide hole, screwing and placing is more smoothly performed and facilitated, and the rope is moored, and when a pulling load is received from the rope, etc. In addition, the anchor performance and reliability are further improved as well as the workability, such as the rotation of the anchor is prevented by the mooring / rotation stopping member and the pull-out resistance is further increased.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a first embodiment of a strip-plate spiral anchor, and FIGS. 2 to 5 show a first embodiment of a strip-plate spiral anchor with a mooring and rotation-stopping member. 6A shows a specific example of the members, FIG. 6A shows one example of the installation of the strip-plate spiral anchor of the first embodiment, and FIGS. 6B and 6C show each example of the installation of the strip-plate spiral anchor with the mooring and rotation stopping member of the first embodiment. FIG. 7 shows a second embodiment of the strip-shaped spiral anchor, FIG. 8 shows specific examples of the mooring and rotation-stopping member applied to the second embodiment of the strip-shaped spiral anchor with mooring and rotation-stopping member, and FIG. The example of each installation of the strip-shaped spiral anchor with a mooring and rotation stopping member of the second embodiment is shown.

In the drawing, reference numeral 1 denotes a strip plate material of a spiral anchor made of each strip of the present invention, 1a denotes a head of a sheath anchor, and 1b (1b, 1b).
1b) is a spiral groove surface or a spiral groove, 1c is a sharp screwed end provided below the spiral groove, 2 is a mooring means provided on the anchor head, 2a is a mooring hole or an example of a mooring means. A rod mounting hole, 12 is a locking projection provided on the anchor neck, and 5 (5a to 5e) are specific examples of the mooring and rotation stopping member applied to the strip-shaped spiral anchor with the mooring and rotation stopping member of the first embodiment. Example, 15 (15a to 15c)
Is a specific example of the mooring and rotation stopping member applied to the strip-shaped spiral anchor with the mooring and rotation stopping member of the second embodiment, 6a
6c is an upper plate portion (or a modified example) of the mooring and rotation stopping member, 7
Reference numerals a to 7c denote a driving leg of the mooring / rotation stopping member, 8 denotes a fitting hole of the strip material, 18 denotes a guide hole of the spiral groove, 9 denotes a second leg provided side by side with the driving leg, and 10 denotes a retaining rod. 2
0 is a screw-in tool, a, b, and c are moored ropes (or wire mesh wires), d is the thickness of the strip, w is its width, p
Is the twist pitch.

In the embodiment shown in FIG. 1, an upper portion of a strip 1 is an anchor head 1a having mooring means 2 such as a rope, and the lower side of the anchor head is twisted so that both side faces of the strip are wide spiral groove surfaces. 1b, 1b, and the lower part of the spiral groove 1b, 1b is formed as a sharp screwed end 1c, thereby forming a strip plate spiral anchor.

Further, in the above-mentioned spiral anchor made of a strip, the aspect ratio w / d of the width w and the thickness d of the transverse rectangular shape of the strip 1 is set to 2 ≦ w / d ≦ 10, and the twist of the strip is made. The pitch P is set to 7 to 20 cm.

In the above-mentioned strip plate spiral anchor, an anchor head 1a having a rod mounting hole 2a in place of the mooring means 2 is provided with a fitting insertion hole 8 corresponding to a transverse rectangular shape of the anchor head. Upper plate 6a (6b, 6c),
And a mooring / rotation stopping member 5 (5a) having a driving leg 7a (7b, 7c) suspended from at least one end of the upper plate portion.
5e) and a locking rod 10 with a mooring / rotation stopping member, which is a combination of a locking rod 10 of a mooring / rotation stopping member mounted in a rod mounting hole.

Further, in the above-mentioned strip plate spiral anchor, an anchor neck 1a provided with a retaining projection 12 instead of the anchoring means 2 is provided with a guide hole 18 corresponding to the rectangular cross section of the spiral groove 1b. Upper plate 6a (6
b, 6c) and a mooring / rotation stopping member 15 (15a to 15c) having a driving leg 7a (7b, 7c) suspended from at least one end of the upper plate. It is a spiral anchor made of strip with a rotation stop member.

More specifically, the spiral anchors made of the strip of the first and second embodiments are manufactured by using the strip 1 as shown in FIGS. 1 and 7, and the mooring means 2 (mooring hole 2a) is used. Etc.), an anchor head 1a provided with a rod mounting hole 2a or a locking projection 12, a spiral groove surface or spiral groove portions 1b, 1b formed by twisting, and a sharp screwed end portion 1c. The plate 1 is made of steel when applied to a wire rope or the like of a rock fall prevention net (rope or a wire of a wire mesh). When applied to a rope for tensioning a tent or the like, a hard material such as AB resin is used as necessary. It is made of resin, and has a suitable transverse rectangular aspect ratio w / d as described later in accordance with the soil (hardness and the like) of the ground G and the intended use, and has a required length.

The spiral anchor made of a band plate according to the first embodiment is provided with mooring means 2 (mooring holes 2a and the like) on the upper portion of a band plate material 1 having a rectangular cross section (width W, thickness d) as shown in FIG. An anchor head 1a is formed, and the lower side of the anchor head is twisted a plurality of times with a torsion pitch p so that both side surfaces of the strip 1 are formed in wide spiral groove surfaces 1b, 1b, respectively, and the spiral groove portions 1b, 1b are formed. Is formed at an appropriately pointed screwed end 1c. The above-mentioned mooring means 2 can easily insert or tie a rope or the like by an appropriate means such as forming a mooring hole 2a as shown and bending or attaching a hook-like member (not shown). It is tied and moored. Further, when the width and thickness of the strip material are defined as w, d, and the twist pitch thereof, respectively, the strip plate spiral anchor preferably has an aspect ratio w / d of 2 ≦ w / d.
≦ 10, and the torsional pitch P is set to 7 to 20 cm.

The above-mentioned spiral anchor made of a strip is (first
Embodiment) As shown in FIG. 6A, it is screwed and driven into the ground. For example, the anchor head 1a is clamped by the chuck 20a of the screwing tool 20 as shown in FIG.
When the rotation Z by applying an appropriate pushing force F by 0, the spiral groove portions 1b, 1b continuous with the sharp screwed end portion 1c.
Therefore, it is easily and efficiently screwed in without disturbing the soil on the ground G, and a rope or the like is moored to the mooring means 2 (mooring hole 2a or the like) provided on the anchor head 1a by an appropriate means. (Not shown). Since this strip-plate spiral anchor is made of the above-described cross-section rectangular strip-shaped material 1, the anchor peripheral area, that is, the contact area with the soil, compared with the conventional cross-section circular or cross-sectionally polygonal rod-shaped material. Is significantly increased, and the surrounding soil is not disturbed by the above-mentioned screwing in, and the friction and locking force due to the soil in the wide spiral groove surfaces 1b, 1b are effectively increased. The pull-out resistance against the pull-out load F1 by the moored ropes and the like is effectively increased, so that the anchoring performance and reliability as well as the overall excellent screw-in driving performance can be obtained.

In the above-mentioned spiral anchor made of a strip, the aspect ratio w / d of the width w and the thickness d of the transverse rectangular shape of the strip 1 is preferably set to 2 ≦ w / d ≦ 10, and It is characterized in that the twist pitch P is set to 7 to 20 cm. The aspect ratio w / d and the twist pitch P were determined as follows. As a result of manufacturing a large number of strip-shaped spiral anchors having different aspect ratios and twist pitches and performing a screw test on different grounds, the aspect ratio w / d was determined. If the value is less than 2, the soil around the cast portion is disturbed, and if it exceeds 10, the anchor strength itself is insufficient. Also, the twist pitch P is 7c.
If it is less than 10 m or more than 10 cm, it will take time and effort to screw in and will not be performed smoothly. Evaluations such as friction with the soil and ineffective support were obtained. According to the evaluation described above, the anchor strength is appropriately secured in accordance with the soil hardness of the ground, etc., the friction with the anchor peripheral area and the soil, the engaging force is effectively increased, and the screw driving is performed. Further, it was confirmed that it was easier to make it easier and that the turbulence of the soil around the casting portion was effectively prevented and the pull-out resistance was effectively increased.

In the spiral anchor made of a strip with a mooring and rotation stopping member of the first embodiment, the mooring hole 2a is replaced with the rod mounting hole 2a instead of the mooring means 2 of the spiral anchor made of the strip (see FIG. 1). An anchor head 1a having a structure in which the strip-shaped spiral anchor is combined with a mooring and rotation stopping member 5 (5a to 5e) and a locking rod 10 of the mooring and rotation stopping member shown in FIGS. I'm sorry. Specifically, as shown in FIG. 2, the mooring / rotation stopping member 5 (5a to 5e) has an upper plate portion 6a provided with an insertion hole 8 having a shape corresponding to a transverse rectangular shape of the anchor head 1a, and A mooring / rotation stop member 5a having a driving leg 7a integrally suspended from one end of the upper plate portion, or an upper plate portion 6b is provided at right angles to the upper plate portion 6a as shown in FIG. A mooring and rotation stopping member 5b having a driving leg 7b integrally attached to one end of the upper plate 6b, and an upper plate 6c attached to the upper plate 6a as shown in FIG.
And a mooring / rotation stopping member 5c in which a leg 7c is integrally attached to one end of the upper plate portion 6c, or two mooring / rotation stopping members 5a are used as necessary. The mooring / rotation stopping member 5c may be used in the same manner as the rotation stopping member 5c, or may be a mooring / rotation stopping member in which the direction of forming the insertion hole 8 is changed.
In combination with a, the mooring and rotation stopping member 5b is used in the same manner as that of the mooring and rotation stopping member 5b. Further, as shown in FIG. The upper plate portions 6a, 6b, 6c are preferably reinforced by providing bent edges on both sides as shown in the drawing.

In the above-mentioned spiral anchor made of a strip with a mooring and rotation stopping member (first embodiment), as shown in FIGS. 6B and 6C, an anchor is provided near the ropes a, b and c by similar means. Then, the mooring / rotation stopping member 5 (or 5a to 5e) is driven into the ground G as shown in the figure, and the insertion hole 8 is inserted into the anchor head 1a, and the rod mounting hole 2 is inserted.
The anchoring rod 10 (bolts, nuts, etc.) is fitted into the hole a, and the mooring and rotation preventing members 5 (5a to 5e) are locked and prevented from slipping off, so that the rope is moored. The strip-shaped spiral anchor with a mooring and rotation-stopping member has basically the same operation and effect as the strip-plate spiral anchor of the first embodiment, and the mooring hole of the mooring and rotation-stopping member at the time of pulling load F1. The rotation of the anchor is prevented by 2a, and the pull-out resistance is further increased. Further, by applying the mooring and rotation stopping members 5a, 5b, and 5c, the ropes a, b, and c can be easily moored as shown in the figure, and the mooring and rotation stopping members 5d with the second leg 9 and the 5e further enhances the driving and mooring performance. In addition to the illustration, each mooring / rotation stop member is used in combination in various modes.

As shown in FIG. 7, a strip-shaped spiral anchor with a mooring and rotation-stopping member according to the second embodiment is provided with a locking projection 12 instead of the mooring means 2 of the strip-shaped spiral anchor (see FIG. 1). (Provided on one or two surfaces as required) is provided as an anchor head 1a, and the strip plate spiral anchor is attached to a mooring and rotation stopping member 15 (15) as shown in FIG.
a to 5c). As shown in FIG. 8A, the mooring / rotation stopping member has a guide hole 18 which can be inserted into the spiral groove portions 1b, 1b instead of the insertion hole 8 of the mooring / rotation stopping member 5a. 8B, the mooring / rotation stop member 15a provided with a guide hole 18 having a similar shape in place of the fitting hole 8 of the mooring / rotation stop member 5b as shown in FIG. As shown in the figure, a mooring / rotation stopping member 15c provided with a guide hole 18 having a shape insertable into the spiral groove portions 1b, 1b instead of the insertion hole 8 of the mooring / rotation stopping member 5c, or as required. The two mooring / rotation stopping members 15a may be used in a manner similar to that of the mooring / rotation stopping member 15c. Mooring / rotation stop member 1 in combination with member 15a
5b, and can be used in the same manner as in FIG.
Can also be used.

The strip-shaped spiral anchor with the mooring and rotation-stopping member (second embodiment) is provided in the spiral groove portions 1b, 1b of the strip-shaped spiral anchor as shown in FIG.
Guide hole 18 of mooring and rotation stopping member 15 (15a to 5c)
And the driving legs 7a (7b, 7c, 9)
Is properly driven into the ground G and the anchor head 1a is driven into F, and the spiral groove 1b,
1b is guided to apply an appropriate rotational force Z, and the anchor is smoothly screwed in and driven, and the anchoring projection 12 provided on the anchor head 1a provides a mooring / rotation stopping member 15
(15a to 5c) are locked and locked, and the ropes a, b, etc. are fixed by the mooring and rotation stopping member 15 (15a to 5c).
It is easily installed by mooring c. According to the spiral anchor made of a strip with a mooring and rotation stopping member, basically the first
It has the same function and effect as the strip-shaped spiral anchor of the embodiment, and furthermore, the mooring and rotation stopping member 15 (15a to 15a)
e), the ropes a, b, and c can be easily moored as shown in the figure, and the spiral grooves 1b, 1b formed by the guide holes 18.
A suitable rotational force is applied to the anchor at the time of driving by the guide of, so that the screwing and driving can be more smoothly performed and facilitated, and the pulling load F from the ropes a, b, c, etc.
1, the mooring and rotation stopping member 15 (15a to 15a)
c) The rotation of the anchor is prevented and the pull-out resistance is further increased, so that the anchor performance and reliability as well as the workability are further improved. In addition to the illustration, each mooring / rotation stop member is used in combination in various modes.

[0023]

According to the present invention, the spiral anchor made of each strip having the above-mentioned construction is made of a strip having a rectangular cross section, the peripheral area of the anchor is remarkably increased, and this strip is formed by twisting the strip. The wide spiral groove surfaces effectively increase friction and engaging force with the soil, and a sharp screw end is provided at the lower part of the spiral groove, and the screw end and the spiral groove are provided. Therefore, it is easily screwed in without disturbing the soil on the ground, significantly increasing the area around the anchor and friction with the soil due to both spiral grooves,
The pull-out resistance is effectively increased due to the increase in the engaging force and the like, and the anchor performance and reliability as well as the workability are significantly improved.

Further, in the above-mentioned spiral anchor made of a strip, the aspect ratio w / d of the width w and the thickness d of the transverse rectangular shape of the strip is set to 2 ≦ w / d ≦ 10, and the twist pitch P of the strip is set. Is set to 7 to 20 cm, so that the anchor strength is appropriately secured according to the soil hardness of the ground,
Effectively increases the anchorage area and the friction with the soil and the engaging force, making it easier to screw in and more effectively prevent the turbulence of the soil around the installation part and effectively improve the pull-out resistance. The anchor performance and reliability have been further improved as well as the workability.

Further, in the above-mentioned strip plate spiral anchor, an anchor head provided with a rod mounting hole in place of the mooring means, and an upper plate portion having a fitting insertion hole corresponding to a transverse rectangular shape of the anchor head. And a combination of a mooring / rotation stopping member having a driving leg portion connected to at least one end of the upper plate portion and a locking rod of the mooring / rotation stopping member mounted in the rod mounting hole. Has the same function and effect as the anchor described above, the driving leg of the mooring and rotation stopping member is driven into the ground, the rope is moored, the insertion hole is inserted into the anchor head, and the retaining rod is mounted on the rod. It is installed in a hole to further improve the anchor performance and reliability, as well as the workability, such as preventing the rotation of the anchor at the time of pull-out load and further increasing the pull-out resistance.

In the above-mentioned strip plate spiral anchor, an anchor head having a retaining projection protruding in place of the mooring means, an upper plate portion having a guide hole corresponding to a rectangular cross section of the spiral groove portion, and By combining a mooring / rotation stopping member having a driving leg portion provided at least at one end of the upper plate portion, the mooring / rotating member has basically the same operation and effect as the anchor described above. When the guide hole of the stop member is fitted in the spiral groove of the anchor, the driving leg of the mooring and rotation stop member is driven into the ground, and the head of the anchor is driven, the spiral groove is guided by the guide hole and the anchor rotates properly. Force is applied, screwing and casting are performed smoothly, construction becomes easier, and rotation of the anchor at the time of pulling load is prevented. It has been further improved-reliability.

[Brief description of the drawings]

FIG. 1 is a side view (A), a right side view (B), and a cross-sectional view (C) of an XX section showing a strip-shaped spiral anchor according to a first embodiment of the present invention.

FIG. 2 is a side view (A), a top view (B), and a right side view (C) showing an example of a mooring / rotation stopping member applied to a first embodiment of a belt-shaped spiral anchor with a mooring / rotation stopping member. )

3A and 3B are a side view and a top view, respectively, showing another example of a mooring and rotation stopping member applied in the same manner as in FIG. 2;

FIG. 4 is a side view (A) and a top view (B) showing another example of a mooring and rotation stopping member applied in the same manner as in FIG. 2;

5A and 5B are a side view and a top view, respectively, showing another example of the mooring and rotation stopping member applied in the same manner as in FIG. 2;

FIG. 6 (A) is a side view showing an example of installation of a strip-shaped spiral anchor (first embodiment), and shows each example of installation of a strip-shaped spiral anchor with a mooring and rotation stopping member according to the first embodiment. Side view (B) and plan view (C)

FIGS. 7A and 7B are a side view (A) and a right side view (B) of a strip-shaped spiral anchor applied to the second embodiment of the strip-shaped spiral anchor with a mooring and rotation-stopping member.

FIGS. 8A and 8B are top views (A), (B) and a top view (C) showing examples of the mooring and rotation stopping member applied to the second embodiment of FIG. 7;

FIGS. 9A and 9B are side views (A) and (B) and plan views (C) showing examples of placing a strip-shaped spiral anchor with a mooring and rotation-stopping member (second embodiment).

[Explanation of symbols]

Reference Signs List 1 strip plate material 1a anchor head 1b, 1b spiral groove surface or spiral groove portion 1c
Screw-in end 2 Locking means 2a Rod mounting hole 12 Locking projections 5a to 5e, 15a to 15c Mooring and rotation stopping member 6a to 6c Upper plate (mooring and rotation stopping member) 7a to 7c Driving leg (mooring) 8) Insertion hole 10 Locking rod 18 Guide hole d Thickness (strip material) w Width (strip material) p Torsional pitch (strip material)

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Bunshin Matsumoto 2-3-14 Nihonbashi Muromachi, Chuo-ku, Tokyo Inside Tokyo Seimitsu Co., Ltd.

Claims (4)

[Claims] 1. An upper portion of a strip material is an anchor head having mooring means such as a rope, and a lower side of the anchor head is twisted to form both side surfaces of the strip material as a wide spiral groove surface.
A strip-shaped spiral anchor characterized in that the lower part of the spiral groove is formed as a sharp screwed end. 2. The strip plate spiral anchor according to claim 1, wherein the aspect ratio w / d between the width w and the thickness d of the transverse rectangular shape of the band plate material is 2 ≦ w / d ≦ 10, A spiral anchor made of a strip, wherein the twist pitch P is set to 7 to 20 cm. 3. The spiral strip anchor according to claim 1, wherein said anchoring means is provided with a rod mounting hole in place of said anchoring means, said fitting corresponding to the transverse rectangular shape of said anchoring head. A mooring / rotation stopping member having an upper plate portion with an insertion hole, and a driving leg portion vertically provided at least at one end of the upper plate portion; and a locking rod for the mooring / rotation stopping member to be mounted in the rod mounting hole. A strip-shaped spiral anchor with a mooring and rotation stop member, characterized by being combined. 4. The spiral strip anchor according to claim 1, wherein the anchor head is provided with a locking projection instead of the anchoring means, and the guide corresponds to a rectangular cross section of the spiral groove. A belt-shaped spiral anchor with a mooring and rotation-stopping member, comprising a combination of an upper plate with a hole and a mooring and rotation-stopping member having a driving leg vertically provided at least at one end of the upper plate portion.