Embeddable large deformation resistant anchor

Abstract

The present application provides an embeddable anti-large deformation anchor rod, which belongs to the field of mine support, wherein the embeddable anti-large deformation anchor rod includes a hollow open anchor rod and a deformable anchor rod running through the hollow open anchor rod; wherein the threaded steel bar plays a deformation resistance function and becomes the first layer of deformation resistance function of the embeddable anti-large deformation anchor rod; by setting a deformable component, the anchor rod as a whole does not undergo displacement change, thereby becoming the second layer of deformation resistance function; by setting a cutting component, the stability of the embeddable anti-large deformation anchor rod in the rock formation is increased, thereby becoming the third layer of deformation resistance function; this simple coupling design not only makes the installation and adjustment of the anchor rod more flexible, but also improves the stability of the anchor rod in the rock formation; at the same time, in conjunction with the mortar sealing body, the force of the anchor rod is converted from tension to tension-compression coupling, thereby alleviating the high stress concentration of the tunnel surrounding rock, so that the anchor rod is more firmly placed in the rock formation, thereby making the rock formation more stable.

Description

Technical Field

[0001] The present application relates to the technical field of mine support, and in particular to an embeddable large deformation resistant anchor rod. Background Art

[0002] At present, most of the domestic mineral resources are mined in underground mining. For underground projects, as the mining activities proceed, the original stress balance of the tunnel surrounding rock is broken, and the tunnel surrounding rock will be displaced and deformed and damaged. Therefore, adopting support measures to strengthen the strength of the tunnel surrounding rock and improve the stability of the surrounding rock is an important measure to ensure the safety of mine production.

[0003] The current support measures mainly include passive support methods represented by steel supports and concrete arches, and active support methods represented by anchors and anchor cables. With the increase in mining depth, geological conditions and stress environments become more complex, so active support methods are more preferred when choosing support methods. In metal mines, the anchor support components in the active support method are mainly pipe-seam anchors, threaded steel resin anchors, etc. These support components have proved their reliability in shallow mining, and most mines still use such support methods and components after entering deep areas.

[0004] However, as the depth increases, the mechanical behavior of the tunnel surrounding rock is quite different from that of the shallow surrounding rock, especially in terms of deformation. During deep mining, the tunnel surrounding rock has a high degree of stress concentration, and the slow release of high stress leads to large deformation disasters of the surrounding rock such as increased movement of the two sides, gradual collapse of the pillars, and floor heave. This type of geological disaster is particularly common in deep mining mines, and occurs in almost every producing mine. Its occurrence and development are more hidden, and the consequences will be catastrophic if it is allowed to develop.

[0005] In view of this, it is necessary to design an embeddable large deformation resistant anchor rod to solve the above problems. Summary of the invention

[0006] In view of the technical problems existing in the background technology, the present application provides an embeddable large deformation resistant anchor rod, which adopts an anchor-embedded combined method to transform the anchor rod from being subjected to tension to being subjected to tension-compression-tension coupling force, thereby not only resisting tunnel deformation, but also improving the strength of the surrounding rock.

[0007] The embodiment of the present application provides an embeddable large deformation resistant anchor rod, comprising: a hollow opening anchor rod, and a deformable anchor rod movably penetrating the hollow opening anchor rod;

[0008] The hollow open anchor comprises: a hollow tube, an open tube connected to the hollow tube, and a plurality of cutting members arranged on the open tube;

[0009] The deformable anchor rod comprises: a first tube movably penetrating the hollow tube, and a deformable component arranged on the first tube; the deformable component is embedded in the open tube.

[0010] In the technical solution of the embodiment of the present application, a device consisting of a hollow open anchor rod and a deformable anchor rod movably inserted into the hollow open anchor rod is provided. This simple coupled structural design not only makes the installation and adjustment of the anchor rod more flexible, but also greatly improves the construction efficiency. Among them, the deformable component can adapt to the deformation of the surrounding rock and soil to a certain extent, thereby becoming the first layer of anti-deformation function of the embeddable anti-large deformation anchor rod, ensuring the anchoring effect.

[0011] In some embodiments, the deformable anchor further comprises: a blocking ring disposed on the first tube and connected to one end of the deformable member;

[0012] The blocking ring is connected to the deformable member at an end away from the hollow tube.

[0013] In this embodiment, a blocking ring is provided at one end of the deformable member to limit the deformable member from moving deeper into the borehole.

[0014] In some embodiments, the cutting member includes: a cutting blade, and a connecting member for connecting a bottom end of the cutting blade to one side of the open tube.

[0015] In this embodiment, the cutting member is provided to increase the stability of the anchor rod in the rock formation, improve the anchoring force, and make the anchor rod have better stability under complex geological conditions.

[0016] In some embodiments, the cutting member further comprises a cutting head connected to the top end of the cutting blade, and the diameter of the cutting head decreases from large to small in a direction close to the cutting blade end toward a direction away from the cutting blade end.

[0017] In some embodiments, the included angle between the cutting blade and the axis of the hollow tube is 30°-150°.

[0018] In some embodiments, the angle between the cutting blade and the axis of the hollow tube is 90°.

[0019] In some embodiments, a plurality of grouting holes are provided on the side wall of the hollow tube.

[0020] In some embodiments, a diameter of the hollow tube is larger than a diameter of the first tube, and a length of the hollow tube is smaller than a length of the first tube.

[0021] In some embodiments, the shape of the open tube in the hollow open anchor includes a truncated cone; the small tube opening of the open tube is connected to the tube opening 1 of the hollow tube, and the diameter of the small tube opening of the open tube is equal to the diameter of the tube opening 1 of the hollow tube; the diameter of the large tube opening of the open tube away from the end of the hollow tube is larger than the diameter of the small tube opening of the open tube; and / or,

[0022] The shape of the deformable member includes a truncated cone;

[0023] The cone angles of the truncated cones of the open tube and the deformable member are equal; the small tube opening of the deformable member is located in the open tube.

[0024] In some embodiments, the first tube comprises threaded steel; a nut is disposed on the threaded steel.

[0025] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solution of the present application, the following is a brief introduction to the drawings used in the present application. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 This is a schematic diagram of the structure of an embeddable large deformation resistant anchor rod in an embodiment of the present application;

[0028] Figure 2 This is a schematic diagram of the structure of a deformable anchor rod in an embodiment of the present application;

[0029] Figure 3 This is a schematic diagram of the structure of the hollow open anchor rod in the embodiment of the present application;

[0030] Figure 4 This is a schematic diagram of the structure of the cutting component in the embodiment of the present application;

[0031] Description of reference numerals:

[0032] 11. Hollow tube; 111. Grouting hole; 12. Open tube; 13. Cutting member; 131. Cutting blade; 132. Cutting head; 133. Connecting member; 21. First tube; 211. Nut; 22. Deformable member; 23. Blocking ring; 3. Tray; 4. Drill hole wall; 5. Anchoring end; 6. Mortar sealing body. DETAILED DESCRIPTION

[0033] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0035] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0036] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0037] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0038] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0039] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0040] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0041] In the existing technology, pipe-slit anchors and threaded steel resin anchors cannot effectively alleviate the high stress concentration in the surrounding rock of deeper tunnels, which can easily lead to large deformation disasters of the surrounding rock such as increased movement of the two sides, gradual collapse of the pillars, and floor heave. Therefore, it is particularly important to rationally design to alleviate the high stress concentration in the surrounding rock of the tunnel.

[0042] In order to solve the above-mentioned technical problems, the present application provides an embeddable large deformation resistant anchor rod, which is achieved by movably passing the deformable anchor rod through the hollow open anchor rod; wherein the hollow open anchor rod is composed of a hollow tube 11, an open tube 12 connected to the hollow tube 11, and a cutting member 13 arranged on the open tube 12; the deformable anchor rod is composed of a first tube 21 movably passing through the hollow tube 11, and a deformable member 22 arranged on the first tube 21; in this way, the force mode of the anchor rod during construction can be changed, and the force mode of the anchor rod can be converted into a tension-compression coupling mode, so as to achieve the technical effect of increasing the force of the anchor rod and making the rock formation more stable.

[0043] For the convenience of description, the following embodiments are described by taking an embeddable large deformation resistant anchor rod according to an embodiment of the present application as an example.

[0044] Please refer to Figure 1 to Figure 4 The embeddable large deformation resistant anchor provided in the embodiment of the present application comprises: a hollow opening anchor, a deformable anchor movably penetrating the hollow opening anchor, and a tray 3 for fixing the deformable anchor;

[0045] The hollow open anchor includes: a hollow tube 11, an open tube 12 connected to the hollow tube 11, and two cutting components 13 arranged on the open tube 12, and the two cutting components 13 are evenly distributed at the top and bottom of the open tube 12; wherein two grouting holes 111 are opened on the side wall of the hollow tube 11; the two grouting holes 111 are evenly distributed at the top and bottom of the hollow tube 11.

[0046] The deformable anchor rod includes: a first tube 21 movably passing through the hollow tube 11, a deformable component 22 arranged on the first tube 21, and a blocking ring 23 arranged on the first tube 21 and connected to one end of the deformable component 22; the deformable component 22 is embedded in the open tube 12; the blocking ring 23 is connected to the deformable component 22 at one end away from the hollow tube 11.

[0047] The diameter of the hollow tube 11 is greater than the diameter of the first tube 21 , and the length of the hollow tube 11 is less than the length of the first tube 21 .

[0048] In some embodiments of the present application, the shape of the open tube 12 in the hollow open anchor is truncated cone; the small tube opening of the open tube 12 is connected to the tube opening 1 of the hollow tube 11, and the diameter of the small tube opening of the open tube 12 is equal to the diameter of the tube opening 1 of the hollow tube 11; the diameter of the large tube opening of the open tube 12 at the end away from the hollow tube 11 is larger than the diameter of the small tube opening of the open tube 12. The shape of the deformable member 22 is truncated cone; the cone angles of the truncated cones of the open tube 12 and the deformable member 22 are equal; the small tube opening of the deformable member 22 is located in the open tube 12. (The portion of the deformable member 22 at the end away from the anchoring end 5 is placed in the open tube 12, and the remaining portion of the deformable member 22 (at the end close to the anchoring end 5) is located outside the open tube 12.)

[0049] In some embodiments of the present application, the first tube 21 is a threaded steel bar; a nut 211 is provided on the threaded steel bar.

[0050] It is worth noting that when selecting the material of the deformable component 22, it can be a copper alloy, a magnesium-aluminum alloy, or a mixed material of the copper alloy and the magnesium-aluminum alloy.

[0051] In this way, by setting up a device composed of a hollow open anchor rod and a deformable anchor rod that is movable and runs through the hollow open anchor rod, wherein the deformable component 22 can adapt to the deformation of the surrounding rock and soil to a certain extent, and the embeddable anti-large deformation anchor rod as a whole does not undergo displacement changes, thereby becoming the first layer of anti-deformation function of the embeddable anti-large deformation anchor rod, ensuring the anchoring effect; by setting up the cutting component 13, the stability of the anchor rod in the rock formation can be increased, the anchoring force can be improved, and the anchor rod has better stability under complex geological conditions, becoming the second layer of anti-deformation function of the embeddable anti-large deformation anchor rod; in addition, the threaded steel bar is the third layer of anti-deformation function of the embeddable anti-large deformation anchor rod; this simple coupled structural design not only makes the installation and adjustment of the anchor rod more flexible, but also can greatly improve the efficiency of rock formation construction stabilization.

[0052] Further, in the embodiments of the present application, Figure 4 As shown, the cutting member 13 comprises: a cutting blade 131, a cutting head 132 connected to the top of the cutting blade 131, and a connecting member 133 for connecting the bottom of the cutting blade 131 to one side of the open tube 12; the diameter of the cutting head 132 decreases from the end close to the cutting blade 131 to the direction away from the end of the cutting blade 131; the material of the cutting head 132 is diamond. The angle between the cutting blade 131 and the axis of the hollow tube 11 is 30°-150°.

[0053] Preferably, in some other embodiments, the angle between the cutting blade 131 and the axis of the hollow tube 11 is 90°.

[0054] The installation and working principle of an embeddable anti-large deformation anchor provided by the present application are described below: Figure 1 to Figure 4 As shown,

[0055] Installation process:

[0056] First, the anchor hole is constructed; then the deformable anchor is anchored at the end by a resin roll to form an anchor end 5, wherein the large pipe opening of the deformable member 22 faces the direction of the anchor end 5, and the small pipe opening of the deformable member 22 faces away from the anchor end 5;

[0057] Then, in the rock formation, a 3-5 cm hole is expanded in the direction of the hole diameter of the deformable member 22 (the rock formation around the part of the threaded steel connected to the anchor end 5 does not need to be expanded, and the rock formation around the deformable member 22 also does not need to be expanded);

[0058] Next, one end of the open tube 12 in the hollow open anchor is first sent into the expanded hole, and the hollow tube 11 also enters the expanded hole along with the open tube 12; when the open tube 12 contacts the deformable member 22 in the deformable anchor, and the deformable member 22 is embedded in the open tube 12, the hollow tube 11 is pushed inward by the drilling rig, so that the opening of the open tube 12 in the hollow open anchor is restricted by the deformable member 22 and the blocking ring 23, and the open tube 12 opens toward the upper and lower sides;

[0059] At the same time, the cutting member 13 located on the open tube 12 contacts the borehole wall 4, and as the drill rig rotates and advances, the cutting member 13 cuts the borehole wall to form a cutting groove; and because the diameter of the cutting head 132 on the cutting member 13 decreases from the end close to the cutting blade 131 to the direction away from the cutting blade 131 end, as the cutting proceeds, the cutting groove finally formed is truncated cone-shaped; at this time, the opening position of the open tube 12 in the hollow open anchor rod is more open, and the open tube 12 and the deformable member 22 are more tightly fitted.

[0060] like Figure 3 As shown, after the drilling rig pushes the hollow open anchor to the destination, it starts to pour mortar from the gap between the hollow tube 11 and the threaded steel (on the left), and the mortar flows into the hole wall and the hollow open anchor through the grouting holes 111 on the side wall of the hollow tube 11 to form a mortar sealed body 6; then the tray 3 is passed through the threaded steel to support one end of the hollow tube 11, so that the contact area between the hollow tube 11 and the rock formation is larger, which is beneficial to the stability of the hollow tube 11, and then the nut 211 is put on the threaded steel to stabilize the threaded steel. In this way, the embeddable anti-large deformation anchor is firmly drilled into the rock formation, and the on-site construction and installation of the embeddable anti-large deformation anchor is completed.

[0061] Working principle:

[0062] When the surrounding rock of the tunnel is displaced and deformed by external influences, the end of the threaded steel bar is anchored, the rod body of the threaded steel bar is stretched, and the threaded steel bar first plays the role of resisting deformation; that is, the first layer of anti-deformation function of the embeddable anti-large deformation anchor rod.

[0063] When the surrounding rock of the tunnel continues to deform due to external influences, the embeddable anti-large deformation anchor tends to move outward due to the tension generated by the deformation of the rock wall. Since the end of the threaded steel is anchored, the rod body of the threaded steel is stretched. However, due to the close fit between the open tube 12, the deformable component 22 and the blocking ring 23, the existence of the mortar sealing body 6, and the softer material of the deformable component 22, only the deformable component 22 moves outward (to the left side) of the orifice, and the deformable component 22 will gradually shrink in diameter (the right deformable component 22 moves to the left, making the aperture of the right deformable component 22 smaller and the aperture of the left deformable component 22 larger), while the embeddable anti-large deformation anchor does not change in displacement as a whole; this is the second layer of anti-deformation function of the embeddable anti-large deformation anchor.

[0064] At the same time, when the deformable member 22 moves out of the hole (to the left), the open tube 12 opens to the upper and lower sides. At this time, the cutting member 13 moves deep into the borehole wall 4. The cutting member 13 also exerts its ability to resist large deformation of the rock wall, which is the third layer of anti-deformation function of the embeddable anti-large deformation anchor rod.

[0065] In addition, if the rock wall continues to undergo large displacement changes, so that the deformable member 22 is injected into the gap between the hollow tube 11 and the threaded steel bar, and the largest diameter of the deformable member 22 after deformation is smaller than the diameter of the hollow tube 11 in the hollow open anchor, its anti-deformation ability fails; at this time, the cutting member 13 of the hollow open anchor embedded in the borehole wall 4 can continue to play the role of resisting large deformation of the rock wall until the cutting piece 131 bends, breaks and completely fails. Thereafter, if the rock wall continues to undergo displacement deformation, the threaded steel bar continues to play the role of resisting large deformation until it breaks and fails, and the threaded steel bar completely loses its function of resisting large deformation of the surrounding rock, and the entire embeddable anti-large deformation anchor bar fails to resist large deformation.

[0066] Compared with the anchor rods in the prior art, the embeddable large deformation resistant anchor rod has three layers of anti-deformation functions, which are linked together and gradually resist. At the same time, due to the formation of a tight mortar sealed body 6 between the hole wall and the embeddable large deformation resistant anchor rod, the force of the deformable component 22 is changed from tension to compression, so that the compressive strength of the embeddable large deformation resistant anchor rod is much higher than the tensile strength, realizing the "pulling" and "compression" conversion of the embeddable large deformation resistant anchor rod, changing the force mode of the anchor rod, realizing the tension-compression coupling conversion of the anchor rod force, improving the force of the anchor rod, and enabling the anchor rod to be placed more stably in the rock formation, thus making the rock formation more stable.

[0067] Please also read Figure 1 to Figure 4According to one or more embodiments of the present application, the embeddable anti-large deformation anchor rod provided by the present application is formed by a hollow open anchor rod and a deformable anchor rod movably running through the hollow open anchor rod; not only does it make the installation and adjustment of the anchor rod more flexible, but it also greatly improves the construction efficiency; wherein, the threaded steel bar first plays a deformation-resistant function and becomes the first layer of deformation-resistant function of the embeddable anti-large deformation anchor rod; by arranging a deformable component 22 on the threaded steel bar and embedding the deformable component 22 in the open tube 12, the deformable component 22 can adapt to the deformation of the surrounding rock and soil to a certain extent, so that the embeddable anti-large deformation anchor rod does not undergo displacement changes as a whole, thereby becoming the second layer of deformation-resistant function of the embeddable anti-large deformation anchor rod, thereby ensuring the anchoring effect ; By arranging the cutting member 13 on the open tube 12, the stability of the anchor rod in the rock formation can be increased, the anchoring force can be improved, and the anchor rod has better stability under complex geological conditions, becoming the third layer of anti-deformation function of the embeddable anti-large deformation anchor rod; this simple coupling structural design not only makes the installation and adjustment of the anchor rod more flexible, but also improves the stability of the anchor rod in the rock formation. At the same time, combined with the tight mortar sealing body 6 poured between the hole wall and the embeddable anti-large deformation anchor rod, the force mode of the anchor rod is changed, and the force mode of the anchor rod is converted from tension to tension-compression coupling, which alleviates the high stress concentration of the surrounding rock of the tunnel, thereby further greatly improving the force condition of the anchor rod, making the anchor rod more firmly placed in the rock formation, and thus making the rock formation more stable.

[0068] The whole device is easy to operate, stable in operation, safe and reliable, energy-saving and environmentally friendly, effectively reduces manual labor intensity and production costs, and has good energy-saving and emission reduction effects.

[0069] It should be noted that the present application is not limited to the above-mentioned embodiments. The above-mentioned embodiments are only examples, and the embodiments having the same structure as the technical idea and exerting the same effect within the scope of the technical solution of the present application are all included in the technical scope of the present application. In addition, without departing from the scope of the main purpose of the present application, various modifications that can be thought of by those skilled in the art to the embodiments and other methods of combining some of the constituent elements in the embodiments are also included in the scope of the present application.

Claims

1. An embeddable large deformation resistant anchor rod, characterized in that: include: A hollow opening anchor rod and a deformable anchor rod movably passing through the hollow opening anchor rod; The hollow open anchor comprises: a hollow tube, an open tube connected to the hollow tube, and a plurality of cutting members arranged on the open tube; The deformable anchor rod comprises: a first tube movably penetrating the hollow tube, and a deformable component arranged on the first tube; the deformable component is embedded in the open tube.

2. The embeddable large deformation resistant anchor rod according to claim 1, characterized in that: The deformable anchor further comprises: a blocking ring disposed on the first tube and connected to one end of the deformable member; The blocking ring is connected to the deformable member at an end away from the hollow tube.

3. The embeddable large deformation resistant anchor rod according to claim 1, characterized in that: The cutting member includes a cutting blade and a connecting member for connecting a bottom end of the cutting blade to one side of the open tube.

4. The embeddable large deformation resistant anchor rod according to claim 3, characterized in that: The cutting member further comprises a cutting head connected to the top end of the cutting blade, and the diameter of the cutting head decreases from the direction close to the cutting blade end to the direction away from the cutting blade end.

5. The embeddable large deformation resistant anchor rod according to claim 3, characterized in that: The included angle between the cutting blade and the axis of the hollow tube is 30°-150°.

6. The embeddable large deformation resistant anchor rod according to claim 5, characterized in that: The included angle between the cutting blade and the axis of the hollow tube is 90°.

7. The embeddable large deformation resistant anchor rod according to claim 1, characterized in that: A plurality of grouting holes are provided on the side wall of the hollow tube.

8. The embeddable large deformation resistant anchor rod according to claim 1, characterized in that: The diameter of the hollow tube is larger than the diameter of the first tube, and the length of the hollow tube is smaller than the length of the first tube.

9. The embeddable large deformation resistant anchor rod according to claim 1, characterized in that: The shape of the open tube in the hollow open anchor includes a truncated cone; the small tube opening of the open tube is connected to the tube opening 1 of the hollow tube, and the diameter of the small tube opening of the open tube is equal to the diameter of the tube opening 1 of the hollow tube; the diameter of the large tube opening of the open tube away from the end of the hollow tube is larger than the diameter of the small tube opening of the open tube; and / or, The shape of the deformable member includes a truncated cone; The cone angles of the truncated cones of the open tube and the deformable member are equal; The small tube opening of the deformable member is located in the open tube.

10. The embeddable large deformation resistant anchor rod according to claim 1, characterized in that: The first pipe comprises threaded steel; a nut is arranged on the threaded steel.

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