CN218090831U

CN218090831U - Anchoring device for slope support

Info

Publication number: CN218090831U
Application number: CN202222595442.8U
Authority: CN
Inventors: 刘世伟; 李芳武; 余平; 王亮; 张海军; 孙艺恒; 李寅寅; 刘成勇; 朱书诚; 廖雨薇; 夏宇轩; 芦娟; 李文涛
Original assignee: Cccc Second Navigation Engineering Co ltd
Current assignee: Cccc Second Navigation Engineering Co ltd
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2022-12-20
Anticipated expiration: 2032-09-29

Abstract

The utility model relates to an anchoring device for supporting side slopes, which comprises an anchor head component, an anchoring component and an expansion frame component connected between the anchor head component and the anchoring component, wherein the anchor head component comprises an anchor head rod, and the end part of the anchor head rod is fixedly connected with a pressure-dividing device; the anchoring component comprises an anchor rod and a steel strand group which are connected with the anchor head rod; the expansion bracket component comprises a plurality of first plates hinged to the end part of the anchor head rod, the end part of the anchor rod is in threaded connection with a thrust ring, a plurality of push plates are hinged to the thrust ring, and the end parts of the push plates are hinged to the first plates respectively. The utility model discloses an anchor device adds expansion bracket assembly, and after anchor device squeezed into the soil body, expansion bracket assembly expandable opened, increased the atress of anchor head subassembly and soil body to the first board with the junction of second board forms the type edge of falling V, and when expansion bracket assembly was opened, this type edge of falling V had the cutting action to the soil body, can accelerate the outside circumference extrusion of soil body on every side, reduced expansion bracket assembly's resistance of opening.

Description

Anchoring device for slope support

Technical Field

The utility model belongs to the technical field of the side slope support, a side slope support is with anchor is related to.

Background

Anchoring devices are commonly used in slope support to increase the strength of the slope, and most of the prior constructions are rock slope support. During the rock slope supporting construction, after the drill bit drills a hole in the rock slope, the anchoring device is inserted into the hole, and grouting is performed.

The anchoring device for the rock slope comprises an anchor head, a drill rod and an anchor rope, wherein the anchor head and the anchor rope are left in the hole after construction, and the anchoring device integrally improves the strength of the slope after concrete is solidified.

However, the anchoring device cannot be directly used for the sand-pulp side slope, and because the strength of the sand-pulp side slope is lower than that of the rock side slope, the soil body mobility is large, and the existing anchoring device cannot meet the supporting requirement of the sand-pulp side slope.

SUMMERY OF THE UTILITY MODEL

In order to solve the safety risk and the hidden danger faced above, the patent aims to provide an anchoring device for slope support, so as to be suitable for sand-pitted slope support and improve the shear resistance and the slope strength after the sand-pitted slope support.

In order to achieve the above object, the present invention provides the following technical solutions: anchor device for slope support, including the anchor head subassembly, with the anchor subassembly that the anchor head subassembly is connected, and connect the expansion bracket subassembly between anchor head subassembly and anchor subassembly, wherein:

the anchor head assembly comprises a hollow anchor head rod;

the anchoring assembly comprises an anchor rod in threaded connection with the anchor head rod and a steel strand group used for being connected with the anchor head rod, and external threads are arranged at the end part of the anchor rod;

the expansion bracket component comprises a plurality of first plates hinged to the end of the anchor head rod, a second plate is fixedly connected to the outer side wall of the first plate, the second plate is connected to the end of the first plate, the connecting position of the first plate and the second plate forms a direction towards the inverted V-shaped edge on the outer side of the anchor head rod, the end of the anchor rod is in threaded connection with a thrust ring, a plurality of push plates are hinged to the thrust ring, and the end of each push plate is hinged to the corresponding first plate.

Preferably, the inner wall of the anchor head rod is provided with a convex blocking ring, and the steel strand group is fixedly connected with a plurality of blocking pieces; it is a plurality of block piece one end and steel strand wires group fixed connection, the other end stretches out towards the steel strand wires outside of organizing, forms the loudspeaker form that can compress, block the piece and be used for stretching into as steel strand wires group in the anchor head pole and cross during the barrier ring, quilt the barrier ring is spacing.

Preferably, the end face of the blocking ring facing the pressure divider forms an included angle of not more than 60 degrees with the inner wall of the anchor rod.

Preferably, the anchor head rod end is fixedly connected with a pressure divider comprising a plurality of pressure dividers fixedly connected to the anchor head rod end, the pressure divider being generally tapered.

Preferably, the inner diameter of the thrust ring is smaller than the outer diameter of the anchor rod, and the outer diameter of the thrust ring is larger than the inner diameter of the anchor rod.

The utility model has the advantages as follows:

1. the utility model provides an anchor has add the expansion bracket subassembly, and after anchor stretched into the soil body, the expansion bracket subassembly had the expandable state to increase the atress of anchor head subassembly and soil body, also can increase the slip casting scope, improved the supporting effect of anchor in husky flesh nature side slope, the construction of strutting of specially adapted husky flesh nature side slope.

2. The utility model discloses in, the first board with the junction of second board forms the orientation the type of falling V edge in the anchor rod outside when expansion bracket assembly is opened, should fall the type of V edge and have the cutting action to the soil body, can accelerate the outside periphery extrusion of soil body around, reduces expansion bracket assembly's opening resistance.

3. The utility model discloses an anchor has set up bleeder mechanism at the tip, and when the construction, bleeder mechanism's a plurality of minutes preforming outwards are dialled the soil body of sand pulp nature and are opened, and when the construction was strutted to sand pulp nature side slope, can directly squeeze into anchor into the soil body, need not drilling, simplified the technology of side slope support anchor construction.

3. The utility model discloses well steel strand group is connected through the barrier ring with the anchor head pole with the barrier sheet, can squeeze into the soil body at anchoring device after, form one-way connection with steel strand group and anchor head pole fast, simplified the connected mode of steel strand group and anchor head subassembly, can simplify construction process, reduce construction cost by a wide margin.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic view of a state structure of the present invention.

Fig. 3 is a schematic view of another state structure of the present invention.

Fig. 4 is a schematic view of the connection between the anchor rod and the middle anchor rod of the present invention.

Fig. 5 is a schematic view of the connection between the middle anchor rod and the steel strand assembly of the present invention.

Fig. 6 is a schematic structural diagram of the steel strand set of the present invention.

In the figure: 10. an anchor head assembly; 11. an anchor rod; 12. a blocking ring; 20. an anchor assembly; 21. an anchor rod; 22. a steel strand set; 23. an external thread; 24. a blocking sheet; 30. an expansion cage assembly; 31. a first plate; 32. a thrust ring; 33. pushing the plate; 34. a second plate; 35. a V-shaped edge is inverted; 40. a voltage divider; 41. and (5) pressing the plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-6, the embodiment of the present invention provides an anchoring device for slope support, including an anchor head assembly 10, an anchoring assembly 20 connected with the anchor head assembly 10, and an expansion bracket assembly 30 connected between the anchor head assembly 10 and the anchoring assembly 20, wherein:

the anchor head assembly 10 comprises a hollow anchor head rod 11, and the end part of the anchor head rod 11 is fixedly connected with a pressure divider 40;

the anchoring assembly 20 comprises an anchor rod 21 in threaded connection with the anchor rod 11 and a steel strand set 22 for connection with the anchor rod 11, wherein the end of the anchor rod 21 is provided with an external thread 23;

the expansion bracket assembly 30 comprises a plurality of first plates 31 hinged to the end portion of the anchor rod 11, a second plate 34 is fixedly connected to the outer side wall of any first plate 31, the second plate 34 is connected to the end portion of the first plate 31, an inverted-V-shaped edge 35 facing the outer side of the anchor rod is formed at the joint of the first plate and the second plate, due to the geological characteristics of a sand-pitted slope, the stress surface of the first plate 31 in the soil body is a narrow end surface, the second plate 34 is fixedly connected to the outer side wall of the first plate 31, the stress of the expansion bracket assembly 30 can be further increased, the inverted-V-shaped edge 35 facing the outer side of the anchor rod 11 is formed at the joint of the first plate 31 and the second plate 34, and when the expansion bracket assembly 30 is opened, the inverted-V-shaped edge 35 has a cutting effect on the soil body, the extrusion of the surrounding soil body to the outer periphery can be accelerated, and the opening resistance of the expansion bracket assembly 30 can be reduced; the end part of the anchor rod 21 is in threaded connection with a thrust ring 32, the thrust ring 32 is hinged with a plurality of push plates 33, the end parts of the push plates 33 are respectively hinged with the first plates 31, one function of the expansion frame assembly 30 is that after the anchoring device is driven into the soil body, the expansion frame assembly 30 is in the rotation process of the anchor rod 21, the thrust ring 32 moves towards the pressure divider 40 under the thrust action of the external threads 23, and simultaneously the push plates 33 are pushed to enable the end parts of the first plates 31 to be opened into rib shapes relative to the anchor rod 21, so that on one hand, the contact range of the first plates 31 with the soil body is increased after the first plates 31 are opened, the stress of the whole anchoring device and the soil body can be improved, on the other hand, in the opening process of the expansion frame assembly 30, the soil body near the anchor head assembly 10 can be forced to be extruded and a cavity appears, so that during subsequent grouting, more concrete can be poured near the anchor head assembly 10, the pouring range is larger, the stress of the concrete and the anchor head assembly 10 and the expansion frame assembly 30 is larger, and the anchoring acting force of the whole anchoring device is larger after the concrete is solidified.

In the above embodiment, referring to fig. 5 and fig. 6, the inner wall of the anchor rod 11 is provided with a protruding stop ring 12, and the steel strand set 22 is fixedly connected with a plurality of stop pieces 24; it is a plurality of block 24 one end and steel strand wires group 22 fixed connection, the other end stretches out towards the steel strand wires group 22 outside, forms the loudspeaker form that can compress, block 24 and be used for when steel strand wires group 22 stretches into in the anchor pole 11 and cross when the barrier ring 12, quilt the barrier ring 12 is spacing, forms stable connection.

The connection of the steel strand group 22 and the anchor head assembly 10 is the foundation of the anchoring effect and is also the core of the anchoring effect, the blocking piece 24 and the blocking ring 12 in the above embodiment are mutually matched to form a channel which can only allow the steel strand group 22 to pass through in a single direction, the steel strand group 22 cannot retreat after the connection, firm connection is formed, the prestress of the steel strand group 22 can be improved by pulling in the steel strand group 22, and thus better anchoring effect can be achieved after grouting.

Preferably, referring to fig. 5, an included angle of not more than 60 ° is formed between the end surface of the blocking ring 12 facing the pressure divider 40 and the inner wall of the anchor head rod 11, when the steel strand set 22 is stressed, the blocking piece 24 has a tendency of displacing relative to the blocking ring 12, and when the included angle of not more than 60 ° is formed between the end surface of the blocking ring 12 facing the pressure divider 40 and the inner wall of the anchor head rod 11, the blocking ring 12 has a better limiting and blocking effect on the blocking piece 24, so that the blocking piece 24 is firmly limited between the blocking ring 12 and the anchor head rod 11, and the reliability of connection between the anchor head rod 11 and the steel strand set 22 is improved.

In another preferred embodiment, referring to fig. 1 and 3, the pressure divider 40 is substantially conical and includes a plurality of pressure dividing plates 41 fixedly connected to the end of the anchor rod 11, and one function of the pressure divider 40 is to separate the soil body when the anchor device is driven into the soil body, so that the soil body is pressed outwards along the pressure dividing plates 40, and the resistance of the anchor device in the soil body driving process is reduced.

In another preferred embodiment, the inner diameter of the thrust ring 32 is smaller than the outer diameter of the anchor rod 11, and the outer diameter of the thrust ring 32 is larger than the inner diameter of the anchor rod 11, and after the anchor rod 21 rotates to separate the thrust ring 32 from the anchor rod 22, the thrust ring 32 is located at the periphery of the steel strand set 22, and the present embodiment is configured to use the fixed state of the anchor rod 11 to block the thrust ring 32, in the present embodiment, the end surface of the thrust ring 32 and the end surface of the anchor rod 11 have an overlapping range, so that when the expansion bracket assembly 30 is subjected to ground stress for a long time, the blocking of the anchor rod 11 can be obtained, and the thrust ring 32 in the expansion bracket assembly 30 is prevented from continuously moving towards the pressure divider 40, so that the expansion bracket assembly 30 loses a predetermined stress.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. Anchor device for slope support, its characterized in that includes the anchor head subassembly, with the anchor subassembly that the anchor head subassembly is connected to and connect the expansion bracket subassembly between anchor head subassembly and anchor subassembly, wherein:

the anchor head assembly comprises a hollow anchor head rod;

2. The anchoring device for slope support according to claim 1, wherein: a plurality of blocking pieces are fixedly connected to the steel strand group; it is a plurality of block piece one end and steel strand wires group fixed connection, the other end stretches out towards the steel strand wires outside of organizing, forms the loudspeaker form that can compress, block the piece and be used for stretching into as steel strand wires group in the anchor head pole and cross during the barrier ring, quilt the barrier ring is spacing.

3. The anchoring device for slope support according to claim 2, wherein: an included angle of not more than 60 degrees is formed between the end face, facing the pressure dividing device, of the blocking ring and the inner wall of the anchor rod.

4. The anchoring device for slope support according to claim 1, wherein: the anchor head rod end is fixedly connected with a pressure divider, the pressure divider comprises a plurality of pressure dividing sheets fixedly connected to the end of the anchor head rod, and the pressure divider is generally conical.

5. The anchoring device for slope support according to claim 1, wherein: the inner diameter of the thrust ring is smaller than the outer diameter of the anchor rod, and the outer diameter of the thrust ring is larger than the inner diameter of the anchor rod.