CN109026103B - Expanding extrusion friction anchor rod and anchor cable structure - Google Patents

Abstract

An expanded diameter extrusion friction bolt anchor cable structure belongs to the technical field of coal rock mass dynamic support and soft rock support. The rod body, the cable body, the stirrer, the in-line groove, the clip, the guide groove and the anchoring tool, the present invention generates constant resistance through the bolt expander or the anchor cable expander and the casing expanding, extruding and rubbing. The deformation is provided by the relative slip of the bolt expander or the anchor cable expander, which not only provides a certain high support constant resistance for the surrounding rock mass to be supported, but also keeps the surrounding rock mass under three-way pressure all the time. stress state, thus forming a high-thickness annular support pressure arch, and through the expansion of the diameter to squeeze the axial slip of the friction rod body or cable body structure, it can deform in coordination with the surrounding rock mass to be supported, and absorb a certain amount of Deformation energy and impact energy finally achieve the effect of constant resistance support and abdication energy absorption support, ensuring the stability of the supported surrounding rock mass to the greatest extent.

Description

A kind of expansion-diameter extrusion friction anchor rod anchor cable structure

technical field

The invention belongs to the technical field of coal rock mass dynamic support and soft rock support, and in particular relates to a diameter-expanding extrusion friction anchor rod and cable structure.

Background technique

In coal mines, metal mines, water conservancy, tunnels and other geotechnical engineering, bolts are an efficient and widely used active support member. However, with the development of my country's economy, the scale of the project has been continuously expanded, and the geological conditions faced by the project have become more and more complicated. In shallow rock mass engineering, under the action of external factors such as earthquake, human disturbance, water or internal factors such as rock mass itself, the rock mass loses its bearing capacity, causing large deformation, landslides, landslides and other disasters; The rock mass under the stress state is prone to disasters such as large deformation of soft rock. At the same time, accidents such as rock burst, rock burst, and mine earthquake occur frequently, while the conventional support bolt has low elongation and poor impact resistance, and the bolt fails to break. Problems are frequent and severe. Therefore, there is an urgent need for anchor rods/cables that can provide both high constant resistance and large deformation capacity in practical engineering.

The Chinese Patent No. 201010196197.2 discloses a constant resistance large deformation anchor rod, the inner surface of the constant resistance device is provided with a threaded structure matched with the rod body, and the working resistance is provided by shearing the constant resistance device thread and extruding the constant resistance device , but the constant resistance will be unstable in the process of shearing the thread, and the sheared thread will have a stacking effect, making it difficult for the rod to slide in the axial direction, affecting the structural deformation capacity, and at the same time, large deformation occurs in the supported rock mass. When the thread is piled up, the working resistance of the bolt will rise sharply, and even the problem of the bolt breaking and failure will occur. The Chinese patent with the patent number of 201410483046.3 discloses an extrusion and friction energy-absorbing anchor rod, which squeezes the energy-absorbing lining pipe through the wedge-shaped column platform and the friction column platform contacts the extruded energy-absorbing lining pipe to generate working resistance, However, during the extrusion process, the working resistance is unstable due to the transition from the line contact to the surface contact between the wedge-shaped pillar and the polygonal lining pipe or the polygonal casing, and the energy-absorbing lining pipe is a thin-walled pipe. During the process, the axial pressure is easy to produce progressive buckling, which makes the structure's extrusion friction function invalid and destroys the structural stability. The Chinese patent with the patent number of 201710556137.9 discloses an extrusion friction type anchor rod with constant resistance and large deformation, which provides constant resistance to the extrusion friction of the casing through the steel ball, but the contact between the steel ball and the casing is point-line contact, The contact area is small, so the constant resistance is small, and the steel ball is not an integral component. When a single or multiple steel ball is damaged, it will cause uneven stress on the rod body, damage the working performance of the bolt, and easily cause instability and damage.

In a word, the existing conventional anchors have low elongation and poor impact resistance, which are difficult to meet the engineering requirements. However, the existing large deformation energy-absorbing anchors have their own principles and structural defects, resulting in unstable constant resistance or easy structural instability. , the effect is not ideal.

SUMMARY OF THE INVENTION

In order to achieve the above object, the present invention adopts the following technical solutions:

An expansion-diameter extrusion friction anchor rod and cable structure is divided into an external type and an internal type. The external type includes a casing, the casing includes a large-diameter area, an expanding area and a small-diameter area, and the outer wall of the large-diameter area of the casing is provided with There is a nut and a tray, a stopper is arranged at one end of the small diameter area of the casing away from the diameter expansion area, and an anchor rod expander or an anchor cable expander is arranged on the inner wall of the casing diameter expansion area, and the inner hole of the anchor rod expander is provided. A rod body is arranged, and a cable body is arranged in the inner hole of the anchor cable expander;

The built-in type includes a casing, the casing includes a large-diameter area, an expanding area and a small-diameter area, the small-diameter area of the casing is provided with a stopper at one end of the inner hole away from the expanding area, and the large-diameter area of the casing is provided with a stirrer, An anchor rod expander or an anchor cable expander is arranged on the inner wall of the inner diameter of the casing, the inner hole of the anchor rod expander is provided with a rod body, one end of the rod body is closely fitted with the inner end of the mixer, and the outer wall of the other end of the rod body is provided with a a tray and a nut, and the tray is close to one end of the casing; the inner hole of the anchor cable expander is provided with a cable body, one end of the cable body is closely fitted with the inner end of the mixer, and the other end of the cable body is provided with a tray and an anchor, and the tray near the end of the casing.

For the external type of the casing, the large diameter area of the casing is provided with an external thread, and for the built-in type of the casing, the large diameter area of the casing is provided with an internal thread.

The stopper and the small diameter area of the casing are integrally formed, or the stopper and the small diameter area of the casing are screwed together, and the inner diameter of the hole in the stopper is larger than the outer diameter of the rod body or the cable.

The anchor rod tube expander includes an anchor rod circular truncated expansion head and an anchor rod cylindrical fixed head, the large end of the anchor rod circular truncated expansion head is provided with an anchor rod cylindrical fixed head, and the outer diameter of the anchor rod cylindrical fixed head is less than or equal to The outer diameter of the large end of the circular truncated expansion head of the anchor rod, the inner hole of the circular truncated expansion head of the anchor rod and the cylindrical fixed head of the anchor rod are both provided with internal threads, and the cylindrical fixed head of the anchor rod is far away from the end face of one end of the circular truncated expansion head of the anchor rod A font groove is provided.

The anchor cable expander includes an anchor cable circular truncated expansion head and an anchor cable cylindrical fixed head, the large end of the anchor cable circular truncated expansion head is provided with an anchor cable cylindrical fixed head, and the outer diameter of the anchor cable cylindrical fixed head is less than or equal to The outer diameter of the large end of the circular truncated expansion head of the anchor cable is provided with a through hole in the middle of the circular truncated expansion head of the anchor cable, and the cylindrical fixed head of the anchor cable is a single-hole clip type or a multi-hole clip type structure.

The outer surface of the truncated anchor rod or the truncated anchor cable is provided with a guide groove or the outer surface of the truncated anchor rod or the truncated anchor cable is set as a smooth surface.

The agitator includes a first cylinder, a second cylinder and a T-shaped block, one end of the first cylinder is fixedly installed with one end of the second cylinder, and the other end of the second cylinder is fixedly installed with the big end of the T-shaped block, The outer diameter of the second cylinder is larger than the outer diameter of the first cylinder.

The beneficial effects of the present invention,

1. The present invention generates constant resistance through the extrusion and friction of the bolt expander or the anchor cable expander and the casing diameter expansion, and provides the amount of deformation through the relative sliding of the bolt expander or the anchor cable expander, not only Provide a certain high support constant resistance to the supported surrounding rock mass, so that the supported surrounding rock mass is always in a state of three-way compressive stress, thereby forming a high-thickness annular support pressure arch, and through the expansion The axial slip of the radially extruded friction rod body or cable body structure, and the supporting surrounding rock mass deforms cooperatively, absorbs a certain amount of deformation energy and impact energy, and finally achieves the effect of constant resistance support and energy-absorbing support. , to ensure the stability of the supported rock mass to the greatest extent.

2. In the present invention, the casing is a thick-walled variable-diameter pipe, which is beneficial to the radial expansion of the casing, and the expander is a two-stage structure, which is more closely matched with the rod body or the cable body, so that the constant resistance of the structure is more stable and safe. At the same time, a limiter is set on the casing to limit the displacement of the bolt expander or the anchor cable expander after reaching the maximum displacement, so that the expanded diameter extrusion friction rod body or cable body structure has the common rod body or cable body structure. The mechanical properties of the body, continue to exert the mechanical properties of the rod body or the cable body and the casing itself, so as to better ensure the safety of the surrounding rock mass to be supported, the bolt expander and the rod body thread fit, or the anchor cable expander and the cable body Clip-type cooperation, safe and reliable, simple structure, convenient for design, processing, production and on-site installation.

3. The device of the present invention can provide larger deformation and higher constant resistance, and the device of the present invention has strong impact resistance and high stability.

Description of drawings

Fig. 1 is the structural schematic diagram of the external expansion-diameter extrusion friction anchor rod of the device of the present invention;

Fig. 2 is the right side view of the structure of the external expansion-diameter extrusion friction anchor rod of the device of the present invention;

Fig. 3 is the structural schematic diagram of the casing of the present invention;

Figure 4-1 is a schematic structural diagram of the bolt expander of the present invention;

Figure 4-2 is the left side view of the bolt expander of the present invention;

Figure 4-3 is a sectional view A-A of the bolt expander of the present invention;

FIG. 5 is a schematic structural diagram of an external expansion-diameter squeeze friction anchor cable of the device of the present invention;

Figure 6-1 is a schematic structural diagram of the anchor cable expander of the present invention;

Figure 6-2 is the left side view of the structure of the anchor cable expander of the present invention;

Figure 6-3 is a sectional view B-B of the anchor cable expander of the present invention;

7 is a schematic structural diagram of a built-in diameter-expanding extrusion friction anchor of the device of the present invention;

Fig. 8 is a schematic diagram of the structure of the agitator of the present invention;

9 is a schematic structural diagram of a built-in diameter-expanding squeeze friction anchor cable of the device of the present invention;

1-casing, 2-large diameter area, 3-expansion area, 4-small diameter area, 5-nut, 6-pallet, 7-stopper, 8-anchor rod expander, 9-anchor cable expander device, 10-rod body, 11-cable body, 12-agitator, 13-anchor rod conical expansion head, 14-anchor rod cylindrical fixed head, 15-in-line groove, 16-clamp, 17-guide Slot, 18-conical expansion head of anchor cable, 19-cylindrical fixed head of anchor cable, 20-first cylinder, 21-second cylinder, 22-T block, 23-anchor.

Detailed ways

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

Example 1

As shown in Figures 1 to 3 and Figures 4-1 to 4-3, a diameter-expanding extrusion friction bolt structure is an external type, including a casing 1, and the casing The pipe 1 includes a large diameter area 2, an enlarged diameter area 3 and a small diameter area 4. The outer wall of the large diameter area 2 of the casing 1 is screwed with a nut 5, and the nut 5 is set as a high-strength nut, and the nut 5 expands close to the casing 1. One end of the diameter area 3 is provided with a tray 6, the tray 6 is set as a metal butterfly tray, the small diameter area 4 of the sleeve 1 is provided with a stopper 7 at one end away from the diameter expansion area 3, and the stopper 7 and the small diameter area 4 are integrally formed. The structure or the stopper 7 is screwed with the small diameter area 4, the installation method of the stopper 7 and the small diameter area 4 can be selected according to the specific construction requirements, and the inner diameter of the through hole of the stopper 7 is larger than the outer diameter of the rod body 10, the stopper 7. The displacement of the bolt expander 8 can be limited after reaching the maximum slip, and the mechanical properties of the rod body 10 and the casing 1 can continue to be exerted. The inner wall of the expansion zone 3 of the casing 1 is provided with the bolt expander 8 , the anchor rod expander 8 includes the anchor rod circular truncated expansion head 13 and the anchor rod cylindrical fixed head 14. The anchor rod cylindrical fixed head 14 is used to fix and install the anchor rod pipe expander 8 without affecting the structural working resistance. , the big end of the anchor rod circular truncated expansion head 13 is provided with the anchor rod cylindrical fixed head 14, and the outer diameter of the anchor rod cylindrical fixed head 14 is less than or equal to the outer diameter of the large end of the anchor rod circular truncated expansion head 13. The inner holes of the expansion head 13 and the anchor rod cylindrical fixed head 14 are both provided with internal threads, and the end face of the anchor rod cylindrical fixed head 14 away from the anchor rod circular truncated expansion head 13 is provided with a font groove 15. The outer surface of the truncated expansion head 13 is provided with a guide groove 17 or the outer surface of the bolt circular truncated expansion head 13 is set as a smooth surface. When there is water in the casing 1, the bolt expander 8 with the guide groove 17 is selected. , when there is no water accumulation, the bolt expander 8 with a smooth outer surface is selected, and the inner hole of the bolt expander 8 is screwed to the rod body 10. The truncated cone-shaped expansion head 13 of the anchor rod produces constant resistance to the expansion, extrusion and friction of the casing 1, and the relative sliding of the truncated expansion head 13 of the bolt expander and the casing 1 provides displacement.

Example 2

As shown in Fig. 5 and Fig. 6-1 to Fig. 6-3, an expanded diameter extrusion friction anchor cable structure, the expanded diameter extrusion friction anchor cable structure is an external type, including a casing 1, and the casing 1 includes Large diameter area 2, expanding diameter area 3 and small diameter area 4, the outer wall of the large diameter area 2 of the casing 1 is screwed with a nut 5, the nut 5 is set as a high-strength nut, and the nut 5 is close to the expanding diameter area 3 of the casing 1 One end is provided with a tray 6, the tray 6 is set as a metal butterfly tray, and the small diameter area 4 of the sleeve 1 is provided with a stopper 7 at one end away from the enlarged diameter area 3, and the stopper 7 and the small diameter area 4 are integrally formed in a structure or limited. The stopper 7 is screwed with the small diameter area 4, the installation method of the stopper 7 and the small diameter area 4 can be selected according to the specific construction requirements, and the inner diameter of the through hole of the stopper 7 is larger than the outer diameter of the rod body 10, and the stopper 7 can be installed in the The anchor cable expander 9 limits its displacement after reaching the maximum slip, and continues to exert the mechanical properties of the rod body 10 and the casing 1 itself. The expander 9 includes an anchor cable truncated expansion head 18 and an anchor cable cylindrical fixed head 19. The anchor cable cylindrical fixed head 19 is used to fix and install the anchor cable expander 9 without affecting the working resistance of the structure. The large end of the expansion head 18 is provided with an anchor cable cylindrical fixed head 19, and the outer diameter of the anchor cable cylindrical fixed head 19 is less than or equal to the outer diameter of the large end of the anchor cable circular truncated expansion head 18, and the middle of the anchor cable circular truncated expansion head 18 is provided. There are through holes, and the cylindrical fixing head 19 of the anchor cable is a single-hole clip 16 or a porous clip 16 structure. The single-hole clip 16 and the porous clip 16 are selected according to specific construction requirements. The outer surface of the truncated expansion head 18 is provided with a guide groove 17 or the outer surface of the anchor cable circular truncated expansion head 18 is set as a smooth surface. When there is water in the casing 1, the anchor cable expander 9 with the guide groove 17 is selected. , when there is no water accumulation, choose an anchor cable expander 9 with a smooth outer surface, the inner hole of the anchor cable expander 9 is provided with a cable body 11, and the anchor cable expander 9 is connected to the cable body through the clip 16. 11 Fixed installation.

Example 3

As shown in Figures 7 and 8, a diameter-expanding extrusion friction bolt structure is a built-in type, including a casing 1, and the casing 1 includes a large-diameter area 2 and a diameter-expanding area 3 and the small diameter area 4, the small diameter area 4 of the sleeve 1 is provided with a stopper 7 at one end of the inner hole away from the enlarged diameter area 3, and the stopper 7 and the small diameter area 4 are integrally formed into a structure or the stopper 7 and the small diameter area 4 Screw connection, the installation method of the limiter 7 and the small diameter area 4 can be selected according to the specific construction requirements, and the inner diameter of the through hole of the limiter 7 is larger than the outer diameter of the rod body 10, and the limiter 7 can be reached in the bolt expander 8. After the maximum slippage, the displacement is limited, and the mechanical properties of the rod body 10 and the casing 1 continue to be exerted. The large diameter area 2 of the casing 1 is provided with a stirrer 12, and the stirrer 12 includes a first cylinder 20 and a second cylinder. Body 21 and T-shaped block 22, the T-shaped block 22 is used to stir the anchoring agent, the second cylindrical body 21 is used to screw the stirrer 12 on the inner wall of the casing 1, and the first cylindrical body 20 is in contact with the rod body 10 and extruded , so that it can drive the whole structure to rotate when the rod body 10 rotates, and fully stir the anchoring agent. The ends are fixedly installed, the outer diameter of the second cylinder 21 is larger than the outer diameter of the first cylinder 20, and the agitator 12 may be an integrally formed structure composed of the first cylinder 20, the second cylinder 21 and the T-block 22, or may be composed of a A structure in which a cylinder 20, a second cylinder 21 and a T-block 22 are assembled, the agitator 12 can fully stir the anchoring agent, and prevent foreign matter from entering the casing 1, and the inner wall of the expansion zone 3 of the casing 1 is provided with an anchor rod expansion The pipe expander 8 includes an anchor rod circular truncated expansion head 13 and an anchor rod cylindrical fixed head 14. The anchor rod cylindrical fixed head 14 is used to fix and install the anchor rod expander 8 without affecting the Structural working resistance, the large end of the anchor rod circular truncated expansion head 13 is provided with the anchor rod cylindrical fixed head 14, and the outer diameter of the anchor rod cylindrical fixed head 14 is less than or equal to the outer diameter of the large end of the anchor rod circular truncated expansion head 13. The inner holes of the rod truncated expansion head 13 and the anchor rod cylindrical fixed head 14 are both provided with internal threads, and the end face of the anchor rod cylindrical fixed head 14 away from the anchor rod circular truncated expansion head 13 is provided with a word-shaped groove 15. A guide groove 17 is provided on the outer surface of the bolt circular truncated expansion head 13 or the outer surface of the bolt circular truncated expansion head 13 is set as a smooth surface. The pipe device 8, when there is no water accumulation, choose the bolt expander 8 with a smooth outer surface, the inner hole of the bolt expander 8 is provided with a rod body 10, one end of the rod body 10 is closely fitted with the inner end of the agitator 12, and the rod body 10. The outer wall of the other end is provided with a tray 6 and a nut 5, the nut 5 is set as a high-strength nut, the tray 6 is set as a metal butterfly tray, and the tray 6 is close to one end of the sleeve 1.

Example 4

As shown in FIG. 9, an expanded diameter extrusion friction anchor cable structure is built-in type, including a casing 1, and the casing 1 includes a large diameter area 2, an expanding diameter area 3 and a small diameter In area 4, the inner hole of the small diameter area 4 of the casing 1 away from the diameter expansion area 3 is provided with a stopper 7, and the stopper 7 and the small diameter area 4 are integrally formed into a structure or the stopper 7 is screwed with the small diameter area 4, The installation method of the stopper 7 and the small diameter area 4 can be selected according to the specific construction requirements, and the inner diameter of the through hole of the stopper 7 is larger than the outer diameter of the cable body 11, and the stopper 7 can reach the maximum slippage in the anchor cable expander 9. After the displacement, the displacement is limited, and the mechanical properties of the cable body 11 and the casing 1 continue to be exerted. The large diameter area 2 of the casing 1 is provided with a stirrer 12, and the stirrer 12 includes a first cylinder 20 and a second cylinder. 21 and T-block 22, the T-block 22 is used to stir the anchoring agent, the second cylinder 21 is used to screw the stirrer 12 on the inner wall of the casing 1, and the first cylinder 20 is in contact with the cable body 11 and squeezed , so that it can drive the entire structure to rotate when the cable body 11 rotates, and fully stir the anchoring agent. The big end is fixedly installed, the outer diameter of the second cylinder 21 is larger than the outer diameter of the first cylinder 20, and the agitator 12 may be an integrally formed structure composed of the first cylinder 20, the second cylinder 21 and the T-shaped block 22, or may be composed of In the assembled structure of the first cylinder 20, the second cylinder 21 and the T-block 22, the agitator 12 can sufficiently stir the anchoring agent and prevent foreign matter from entering the casing 1. An anchor cable is provided on the inner wall of the diameter expansion zone 3 of the casing 1 The expander 9, the anchor cable expander 9 includes the anchor cable conical expansion head 18 and the anchor cable cylindrical fixed head 19. The anchor cable cylindrical fixed head 19 is used to fix and install the anchor cable expander 9 without affecting the structure. Working resistance, the large end of the truncated truncated expansion head 18 of the anchor cable is provided with a cylindrical fixed head 19 of the anchor cable, and the outer diameter of the cylindrical fixed head 19 of the anchor cable is less than or equal to the outer diameter of the large end of the truncated truncated expansion head 18 of the anchor cable. A through hole is provided in the middle of the circular truncated expansion head 18, and the cylindrical fixed head 19 of the anchor cable is a single-hole clip 16 or a porous clip 16 structure. The single-hole clip 16 and the porous clip 16 are constructed according to specific construction requirements. Optionally, a guide groove 17 is provided on the outer surface of the anchor cable truncated truncated head 18 or the outer surface of the anchor cable truncated truncated head 18 is set as a smooth surface. When there is water in the casing 1, a guide groove 17 is selected. The anchor cable expander 9, when there is no water accumulation, select the anchor cable expander 9 with a smooth outer surface, the inner hole of the anchor cable expander 9 is provided with a cable body 11, and one end of the cable body 11 is connected to the inner hole of the mixer 12. The ends are closely fitted, and the other end of the cable body 11 is provided with an anchor 23 and a tray 6. The anchor 23 is set as a single-hole clip-type anchor, and can also be set as a porous clip-type anchor according to actual needs. The tray 6 is set as Metal butterfly tray, and tray 6 is close to one end of sleeve 1 .

The working principle of the present invention is that when the axial tensile force received by the rod body 10 or the cable body 11 is less than the constant resistance of the structure, the anchor rod truncated expander 13 or the anchor cable truncated expander 18 and the casing 1 are in a static state; When the axial tension of the rod body 10 or the cable body 11 is greater than the constant resistance of the structure, the truncated bolt truncated head 13 or the truncated anchor cable truncated head 18 and the casing 1 slide relative to each other to provide displacement, which is in line with the supported surrounding rock mass. Cooperative deformation, absorb a certain amount of deformation energy and impact energy, so as to achieve the effect of constant resistance support and energy absorption support, and when the bolt expander 8 or the anchor cable expander 9 is in contact with the limiter 7 At this time, the limiter 7 will limit the displacement of the bolt expander 8 or the anchor cable expander 9 to ensure that the rod body 10 or the cable body 11 will not fall off the casing 1, so that the rod body 10 or the cable body 11 and the The mechanical properties of the casing 1 itself ensure the stability of the supported surrounding rock mass to the greatest extent.

Claims (4)

1. An expanding extrusion friction anchor rod and anchor cable structure is divided into an external type and an internal type, and is characterized in that the external type comprises a sleeve, the sleeve comprises a large-diameter area, an expanding area and a small-diameter area, a nut and a tray are arranged on the outer wall of the large-diameter area of the sleeve, a limiter is arranged at one end, away from the expanding area, of the small-diameter area of the sleeve, an anchor rod tube expander or an anchor cable tube expander is arranged on the inner wall of the expanding area of the sleeve, and a rod body is arranged in an inner hole of the; a cable body is arranged in an inner hole of the anchor cable tube expander;

the built-in type sleeve comprises a large-diameter area, an expanding area and a small-diameter area, wherein an inner hole of one end, far away from the expanding area, of the small-diameter area of the sleeve is provided with a limiter, the large-diameter area of the sleeve is provided with a stirrer, an anchor rod tube expander or an anchor cable tube expander is arranged on the inner wall of the expanding area of the sleeve, a rod body is arranged in the inner hole of the anchor rod tube expander, one end of the rod body is tightly attached to the inner end of the stirrer, a tray and a nut are arranged on the outer wall of the; a cable body is arranged in an inner hole of the anchor cable tube expander, one end of the cable body is tightly attached to the inner end of the stirrer, a tray and an anchorage device are arranged at the other end of the cable body, and the tray is close to one end of the sleeve;

the anchor rod pipe expander comprises an anchor rod circular table-shaped expansion head and an anchor rod cylindrical fixing head, wherein the large end of the anchor rod circular table-shaped expansion head is provided with an anchor rod cylindrical fixing head, the outer diameter of the anchor rod cylindrical fixing head is smaller than or equal to the outer diameter of the large end of the anchor rod circular table-shaped expansion head, inner holes of the anchor rod pipe expander circular table-shaped expansion head and the cylindrical fixing head are provided with inner threads, and the end face, away from the circular table-shaped expansion head, of the cylindrical fixing head is provided with a linear groove;

the anchor cable pipe expander comprises an anchor cable round-table-shaped expansion head and an anchor cable cylindrical fixing head, wherein the large end of the anchor cable round-table-shaped expansion head is provided with the anchor cable cylindrical fixing head, the outer diameter of the anchor cable cylindrical fixing head is smaller than or equal to the outer diameter of the large end of the anchor cable round-table-shaped expansion head, the middle part of the anchor cable round-table-shaped expansion head is provided with a through hole, and the anchor cable cylindrical fixing head is of a single-hole clamping piece or a multi-hole clamping;

the stirrer comprises a first cylinder, a second cylinder and a T-shaped block, one end of the first cylinder is fixedly mounted with one end of the second cylinder, the other end of the second cylinder is fixedly mounted with the large end of the T-shaped block, and the outer diameter of the second cylinder is larger than that of the first cylinder.

2. The expanding extrusion friction anchor rod and cable structure of claim 1, wherein: the external sleeve is provided with external threads in a large diameter area, and the internal sleeve is provided with internal threads in a large diameter area.

3. The expanding extrusion friction anchor rod and cable structure of claim 1, wherein: the limiter and the small diameter area of the sleeve are of an integrally formed structure or are in threaded connection with the small diameter area of the sleeve, and the inner diameter of the middle hole of the limiter is larger than the outer diameter of the rod body or the cable body.

4. The expanding extrusion friction anchor rod and cable structure of claim 1, wherein: the outer surface of the anchor rod round table-shaped expansion head or the anchor cable round table-shaped expansion head is provided with a guide groove, or the outer surface of the anchor rod round table-shaped expansion head or the anchor cable round table-shaped expansion head is set to be a smooth surface.

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