CN217923647U - Anchor auxiliary part, anchor and anchor structure - Google Patents

Abstract

The utility model provides an anchoring auxiliary part, an anchoring part and an anchoring structure, wherein the auxiliary part is a cylinder body with a plurality of sliding grooves on the side surface; the sliding groove is linearly arranged, and the bottom surface of the sliding groove faces to the axis and is an arc surface; the auxiliary part is divided into a connecting section and an expanding section along the axis direction, and the vertical distance from the bottom surface of each sliding chute to the axis of the auxiliary part is unchanged on the connecting section; on the expanding section, the vertical distance from the bottom surface of each sliding groove to the axis of the auxiliary part is gradually increased from one end to the other end of the joint of the connecting section. The auxiliary part can be used in cooperation with the anchor bar bundles, the connecting section is pressed between the anchor bar bundles, and each anchor bar correspondingly slides into the sliding groove, so that one end of each anchor bar bundle is expanded to form an anchor bar bundle anchoring end with expansion, a larger pulling resistance is provided for each anchor bar bundle, the length of a bar body is not required to be increased, anchoring holes are not required to be expanded, and stress coordination of all parts of each anchor bar bundle is effectively improved.

Description

Anchor auxiliary part, anchor and anchor structure

Technical Field

The utility model relates to an anchor technical field that all kinds of soil property, side slope were strutted.

Background

The large-scale water and power engineering in China often has a large amount of high slopes to be supported, and meanwhile, the excavation process of the high slopes is often accompanied by a plurality of blocks or soil excavation surfaces with different sizes. In China, a shallow layer supporting mode of inserting anchor rods or anchor bar bundles into holes and grouting is often adopted, and the uplift resistance is mainly determined by the tensile strength of the anchor bar bundles or the friction force between grout after grouting of the anchor bar bundles and anchor bar holes (anchor bars). In the side slopes of different stratums, the uplift resistance generated by the anchor bar bundles is different, but the uplift resistance of the anchor bar bundles is often determined by the friction force of the section of the anchor bar hole. Commonly used tendon materials are generally high in tensile strength, and failure of the tendon generally occurs between the grout and the tendon or the tendon hole.

The commonly used measures for increasing the pullout resistance of the anchor bar bundle include increasing the length of the anchor bar bundle, increasing the diameter of the anchor bar bundle, or increasing the diameter of the anchor bar bundle hole. Although the length of the anchor bar bundle can be increased, the pullout resistance of the anchor bar bundle can be directly increased, but the length of the anchor bar bundle hole needs to be increased at the same time. The diameter of the anchor bar bundle is increased or the drilling diameter of the anchor bar bundle is increased, so that the pulling resistance of the anchor bar bundle can be increased, but the strength redundancy of the material of the anchor bar bundle is also increased, and the waste of the material of the bar body is caused.

Due to the difference of the properties of the materials, the strength and the properties of various materials of the anchor tendon are difficult to be coordinately exerted by adopting a conventional anchor tendon structure. The present invention therefore proposes a tendon structure with a self-expanding anchoring end.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the shortcoming that exists among the prior art, provide an uplift resistance that can effectively increase the anchor muscle to restraint, promote anchor muscle material application performance, increase the anchor auxiliary member of the atress harmony of anchor muscle structure.

In order to realize the purpose, the utility model discloses a technical scheme as follows:

an anchoring auxiliary member is a cylinder body with a plurality of sliding grooves on the side surface; the sliding grooves are linearly arranged, and the bottom surfaces of the sliding grooves face to the axis and are arc surfaces; the auxiliary part is divided into a connecting section and an expanding section along the axis direction, and the vertical distance from the bottom surface of each sliding chute to the axis of the auxiliary part is unchanged on the connecting section; on the expanding section, the vertical distance from the bottom surface of each sliding groove to the axis of the auxiliary part is gradually increased from one end to the other end of the joint of the connecting section.

The auxiliary part can be used in cooperation with the anchor bar bundles, the connecting section is pressed between the anchor bar bundles, and each anchor bar correspondingly slides into the sliding groove, so that one end of each anchor bar bundle is expanded to form an anchor bar bundle anchoring end with expansion, a larger pulling resistance is provided for each anchor bar bundle, the length of a bar body is not required to be increased, anchoring holes are not required to be expanded, and stress coordination of all parts of each anchor bar bundle is effectively improved.

Furthermore, on the connecting section, the bottom surfaces of the sliding grooves are close to the axis of the auxiliary piece, so that the part of the auxiliary piece, which is positioned between the groove walls of the sliding grooves, is a thin wall.

Furthermore, in the expansion section, the groove depth of each sliding groove becomes shallower along with the increase of the vertical distance from the bottom surface of each sliding groove to the axis of the auxiliary member.

Furthermore, each sliding groove surface is also provided with a tooth-shaped structure.

Additionally, the utility model also provides an anchor, including the ordinary anchor muscle bundle that auxiliary member and a plurality of anchor muscle formed, the auxiliary member is impressed in the connection end of ordinary anchor muscle bundle through the linkage segment, thereby the anchor muscle one-to-one is in the spout ordinary anchor muscle bundle has the connection end of diffusion form.

Furthermore, the common anchor bar bundle and the auxiliary piece are bound and fixed.

Furthermore, the anchor bars are welded and fixed with each other to form a common anchor bar bundle.

In addition, the utility model discloses based on this anchor's technical scheme, still provide an anchor structure, including anchor eye and the anchor of installing in the anchor eye; wherein, the common anchor bar bundle is positioned in the anchor hole, and at least part of the connecting section of the auxiliary part is positioned in the anchor hole; grouting in the anchor hole.

Drawings

Fig. 1 is a schematic view of the anchoring structure of the auxiliary member completely pressed into the anchor tendon bundle of the present invention.

Fig. 2 is the utility model discloses the auxiliary member is not pressed into the anchor structure sketch map of anchor muscle bundle completely.

Fig. 3a is a cross-sectional view of a-a of fig. 1.

Fig. 3b is a cross-sectional view of b-b of fig. 1.

Fig. 4a is a cross-sectional view a-a of fig. 2.

Fig. 4b is a cross-sectional view of b-b of fig. 2.

Fig. 5 is a schematic view of the surface structure of the sliding chute of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

Reference is made to the accompanying drawings. The present embodiments disclose an anchoring assistant, an anchor comprising such an assistant, and an anchoring structure. Wherein, the auxiliary member 11 is a strip-shaped cylinder with a plurality of sliding grooves 5 on the side surface. In the present embodiment, 3 sliding grooves 5 are provided, and the sliding grooves 5 are linearly arranged with the axis of the auxiliary 1 as the center of symmetry, that is, each sliding groove 5 is linearly extended from one end to the other end of the side surface of the auxiliary 1. The bottom surface of the sliding chute 5 faces to the axis and is a circular arc surface. The auxiliary member 1 is divided into a connecting section 10 and an expanding section 20 along the axial direction, wherein the diameter of a circumscribed circle of the cross section of the auxiliary member 1 of the connecting section 10 is always the same and unchanged, and the diameter is specifically represented as follows: the vertical distance from the bottom surface of each sliding chute 5 on the connecting section 10 to the axis of the auxiliary element 1 is not changed. The diameter of the circumscribed circle of the cross section of the auxiliary part 1 of the expanding section 20 gradually increases, which is characterized in that: in the enlarged section 20, the vertical distance from the bottom surface of each slide groove 5 to the axis of the auxiliary element 1 gradually increases from one end to the other end at the intersection with the connecting section 10. When the auxiliary part is used, the connecting section 10 of the auxiliary part 1 is pressed into the space between the anchor bar bundles 3, so that each anchor bar in the anchor bar bundles 3 correspondingly slides into the sliding groove 5, and the pressed end of the anchor bar bundle 3 is in a radially expanded state due to the fact that a certain distance exists between the sliding grooves 5 and the distance is finally increased, and therefore the anti-pulling force between the anchor bar bundles 3 and the anchor holes 6 is increased, and the anchoring stability is improved.

In addition, in order to prevent the anchor bar bundle 3 from slipping outwards and increase the pulling resistance of the anchor bar bundle 3, the surface of the sliding groove 5 is also provided with an anti-slip tooth structure 7.

In particular, in the connecting section 10, the bottom of each runner 5 is drawn toward the axis of the auxiliary element 1 so that the portion of the auxiliary element 1 located between the walls of each runner 5 is thin-walled. Therefore, the problem that the connecting section 10 of the auxiliary part 1 is too large in section and difficult to press into the anchor tendon bundles or the length of the pressed anchor tendon bundles is not enough and easy to separate due to the fact that the end of the anchor tendon bundle 3 is expanded too much when the anchor tendon bundles are pressed in can be solved.

In the enlarged section 20, the groove depth of each slide groove 5 becomes shallower as the vertical distance from the bottom surface of each slide groove 5 to the axis of the auxiliary 1 increases. Therefore, the distance between the bottom surfaces of the sliding chutes 5 can be adjusted, and the waste of material cost caused by the large sectional area of the expanded section 20 of the auxiliary 1 is avoided.

Of course, the anchor disclosed in this embodiment includes the auxiliary member 1 and the plurality of anchor bars forming the common anchor bar bundle 3, the auxiliary member 1 is pressed into the connecting end of the common anchor bar bundle 3 through the connecting section 10, and the anchor bars 8 are correspondingly positioned in the sliding grooves 5 so that the common anchor bar bundle 3 has a divergent connecting end. Wherein, ordinary anchor muscle 3 and auxiliary member 1 are binded fixedly through binding 2. The anchor bars 8 are fixed to each other by means of welding points 4.

The anchoring structure disclosed in the present embodiment includes an anchor hole 6 and an anchor installed in the anchor hole 6; wherein, ordinary anchor muscle 3 is in the anchor eye, and auxiliary member 1 has at least some linkage segment 10 to be located the anchor eye, and auxiliary member 1 can specifically adjust the length of pressing in the anchor muscle according to the anchor muscle expansion degree difference. The anchor holes 6 are normally grouted to secure the anchors.

It should be noted that the above describes exemplifying embodiments of the invention. However, it should be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, which are only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the scope of the present invention, and the changes and modifications are intended to fall within the scope of the present invention as claimed.

Claims (8)

1. An anchoring auxiliary member is characterized in that the auxiliary member is a cylinder body of which the side surface is provided with a plurality of sliding grooves; the sliding groove is linearly arranged, and the bottom surface of the sliding groove faces to the axis and is an arc surface; the auxiliary part is divided into a connecting section and an expanding section along the axis direction, and the vertical distance from the bottom surface of each sliding groove to the axis of the auxiliary part on the connecting section is not changed; on the expanding section, the vertical distance from the bottom surface of each sliding groove to the axis of the auxiliary element is gradually increased from one end to the other end at the joint of the connecting section.

2. An anchoring assistant according to claim 1, characterized in that in said connecting section, each of said chute bottoms is drawn toward said assistant axis so that a portion of said assistant located between each of said chute walls is thin-walled.

3. An anchoring assistant according to claim 1, wherein in said enlarged section, the groove depth of each of said slide grooves becomes shallower as the vertical distance from the bottom surface of each of said slide grooves to the axis of said assistant increases.

4. An anchoring aid according to any one of claims 1 to 3, wherein each runner surface is further provided with a castellated formation.

5. An anchor, characterized in that it comprises a conventional tendon bundle formed of an auxiliary member as claimed in any one of claims 1 to 4 and a plurality of anchor tendons, said auxiliary member being pressed into connecting ends of said conventional tendon bundle through connecting segments, said anchor tendons being located in said slide grooves in a one-to-one correspondence so that said conventional tendon bundle has diverging connecting ends.

6. An anchor as claimed in claim 5, wherein said common tendon is secured in binding relation with said auxiliary member.

7. An anchor as claimed in claim 5, wherein said tendons are welded to each other to form said common tendon bundles.

8. An anchoring structure comprising an anchor eye and the anchor of claim 5 mounted in said anchor eye; wherein, the common anchor bar bundle is positioned in the anchor hole, and at least part of the connecting section of the auxiliary piece is positioned in the anchor hole; grouting in the anchor hole.

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