CN113026739A - Self-adaptive friction type anti-shearing large-deformation anchor rod - Google Patents
Self-adaptive friction type anti-shearing large-deformation anchor rod Download PDFInfo
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- CN113026739A CN113026739A CN202110411619.1A CN202110411619A CN113026739A CN 113026739 A CN113026739 A CN 113026739A CN 202110411619 A CN202110411619 A CN 202110411619A CN 113026739 A CN113026739 A CN 113026739A
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- rod
- rod body
- sleeve
- assembly
- rings
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/80—Ground anchors
- E02D5/805—Ground anchors with deformable anchoring members
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/207—Securing of slopes or inclines with means incorporating sheet piles or piles
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Joining Of Building Structures In Genera (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a self-adaptive friction type anti-shearing large-deformation anchor rod, which comprises an anchor rod main body, a connecting assembly and a sleeve assembly, wherein the anchor rod main body is provided with a plurality of connecting holes; the anchor rod main body comprises a first rod body, a second rod body and a third rod body which are arranged along the left and right of the axis; an anchor backing plate is movably arranged on the third rod body, and a fastening nut is arranged on the third rod body in a threaded mode; the first rod body is connected with the second rod body through a sleeve assembly, and the second rod body is connected with the third rod body through a connecting assembly; the thimble assembly includes support sleeve and controls flexible first regulating assembly, and support sleeve detachable suit is between the first body of rod and the second body of rod to form the inner chamber with the first body of rod and the second body of rod, first regulating assembly is located the inner chamber, both ends respectively with first body of rod and second body of rod fixed connection. This self-adaptation friction formula anti-shear large deformation stock, simple structure, it is with low costs, can effectively adapt to rock mass shear deformation, play good supporting role to the rock mass.
Description
Technical Field
The invention relates to the technical field of rock and soil anchoring, in particular to a self-adaptive friction type anti-shearing large-deformation anchor rod.
Background
Along with the development of large-scale engineering construction in China, more and more slope stability problems correspondingly appear, slope instability often causes geological disasters such as landslides, and serious threats are caused to normal construction of engineering and life and property safety of people.
Landslide generally comprises a sliding bed, a sliding strip and a sliding body, and refers to a phenomenon that a rock body is damaged by toppling and sliding downwards along a certain weak structural surface or a shearing strip under the action of gravity or other influence factors, and in order to keep the slope stable for a long time, people often adopt an anchor rod to fix the rock body for supporting. Traditional stock is whole body of rod structure, and it resists deformability, shear capacity not enough, for example when the side slope rock mass takes place the shear displacement of big deformation, the stock is cut near shear band or anchor head department very easily to lose the supporting effect, finally lead to the emergence of geological disasters such as landslide. In addition, in deep roadway supporting engineering, roadway surrounding rocks are frequently subjected to dislocation or movement due to the influence of high ground stress, high ground temperature or complex rock mass structures, so that the anchor rod is broken under the double effects of shear stress and axial drawing force, and the anchoring effect is lost; in addition, although the deformation resistance and the shearing resistance of the high-strength anchor rod are improved, the processing cost is high.
Disclosure of Invention
The invention provides a self-adaptive friction type anti-shearing large-deformation anchor rod which is simple in structure, can effectively adapt to the shearing large deformation of a rock mass, and plays a good supporting role on the rock mass.
In order to achieve the purpose, the self-adaptive friction type shear-resistant large-deformation anchor rod comprises an anchor rod main body, a sleeve assembly and a connecting assembly;
the anchor rod main body comprises a first rod body, a second rod body and a third rod body which are arranged along the left and right of the axis; an anchor backing plate is movably arranged on the third rod body, and a fastening nut is arranged on the third rod body in a threaded mode;
the first rod body and the second rod body are connected through a sleeve assembly, and the second rod body and the third rod body are connected through a connecting assembly;
the thimble assembly includes support sleeve and controls flexible first regulating assembly, and support sleeve detachable suit is between the first body of rod and the second body of rod to form the inner chamber with the first body of rod and the second body of rod, first regulating assembly is located the inner chamber, both ends respectively with first body of rod and second body of rod fixed connection.
Further, the first adjusting component comprises a plurality of first circular rings arranged left and right, and the first circular rings are mutually buckled to form a chain structure;
when the first circular rings are elongated, the left-right length of the first circular rings is larger than that of the support sleeve.
Further, the connecting assembly comprises a plurality of second circular rings arranged left and right, and the second circular rings are mutually buckled to form a chain structure.
Further, the connecting assembly further comprises a second adjusting assembly, and the second adjusting assembly comprises an adjusting clamping plate, a clamping rod and a second spring;
the middle parts of the pair of clamping rods are mutually rotatably connected and form an X-shaped structure, the right ends of the clamping rods are connected with the second ring on the left, the left ends of the clamping rods are correspondingly connected with one ends of the pair of adjusting clamping plates, and when the second ring is stressed and stretched, the right ends of the pair of clamping rods are close to each other;
a pair of adjusting clamp plates are enclosed into a cylindrical sleeve structure and sleeved on the second rod body, a plurality of grooves which are arranged left and right are formed in the inner wall of the cylindrical sleeve, a plurality of limiting lugs fixed on the second rod body are arranged between the cylindrical sleeve and the second rod body, and each limiting lug is arranged in the groove in a matched mode;
the second spring is sleeved on the outer side of the cylindrical sleeve.
Further, a plurality of recesses are earlier evenly arranged with the circumference of the second body of rod, arrange about again, and corresponding spacing lug is earlier evenly set up on the second body of rod circumference, arranges about again, and spacing lug is hemispherical structure.
Furthermore, a circular groove is formed in the left side of the cylindrical sleeve, and a limiting block matched with the circular groove is fixedly arranged at the right end of the second rod body.
Furthermore, the number of the first rings is larger than that of the second rings, and when the first rings are elongated, the left-right length of the first rings is larger than that of the second rings.
Furthermore, first adjusting part is first spring, and both ends are respectively with first body of rod, second body of rod fixed connection about first spring.
Furthermore, a locking sleeve is respectively sleeved on the first rod body and the second rod body in a sliding manner, and a limit ring block is correspondingly arranged at the end close to the supporting sleeve;
each locking sleeve is sleeved outside the supporting sleeve in a threaded mode and abuts against the limiting ring block to limit.
Furthermore, a through hole which is sealed by a locking pin is arranged on the supporting sleeve, and a filling agent is arranged in the inner cavity.
Compared with the prior art, the self-adaptive friction type anti-shearing large-deformation anchor rod is connected between the first rod body and the second rod body through the sleeve pipe assembly, when the rock body is sheared and displaced, and the support sleeve pipe positioned near the shearing zone bears certain shearing stress and tensile force and is sheared, the first adjusting assembly in the inner cavity acts, the first adjusting assembly is a first ring formed by buckling a plurality of rings, the first ring formed by buckling the plurality of rings is changed into a bent and elongated state from a contraction and relaxation state and is still connected between the first rod body and the second rod body, so that the self-adaptive friction type anti-shearing large-deformation anchor rod can continuously bear larger shearing stress and tensile force, adapts to the shearing deformation of the rock body, releases energy and plays a good supporting role on the rock body;
because the connecting assembly is arranged between the second rod body and the third rod body, on one hand, a plurality of second rings at the third rod body are connected with each other to form a chain structure, the second rings which are buckled with each other can play a role of adapting to shearing displacement and transmitting axial force to prevent the anchor rod from being sheared on the surface of a rock body under the action of shearing force and axial force, on the other hand, the connecting assembly also comprises a second adjusting assembly, when the plurality of second rings are sheared and displaced or axially stretched, the right ends of a pair of clamping rods are close to each other to realize that the pair of adjusting clamping plates clamp the second rod body, the larger the pulling force is, the larger the clamping force is, the cylindrical sleeve moves rightwards relative to the second rod body, the limiting lugs are embedded into different grooves in a sliding manner according to the stress condition to realize continuous friction sliding displacement and stretching, the whole body can bear larger shearing displacement and axial force, and in addition, the limiting block at the right end, the final protection of the large-deformation anchor rod is realized; this self-adaptation friction formula anti-shear large deformation stock absorbs the energy, extension stock life effectively adapts to rock mass shear deformation, plays to last good supporting role to the rock mass.
Drawings
FIG. 1 is an overall front view of the present invention;
FIG. 2 is a front view of one version of the sleeve assembly of the present invention;
FIG. 3 is a front view of another version of the sleeve assembly of the present invention;
FIG. 4 is a front view of the connecting assembly of the present invention;
in the figure: 11. the device comprises a first rod body, a second rod body, a third rod body, a fastening nut, a 15 anchor backing plate, a 21 support sleeve, a 22 limit ring block, a 23 lock sleeve, a 24 first ring, a 25 filler, a 26 lock pin, a 27 first spring, a 31 second ring, a 32 adjusting clamp plate, a 33 clamp rod, a 34 second spring, a 35 limit lug, a 36 limit block, a 37 groove, a 38 annular groove, a 39 annular groove and a third spring.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1 and fig. 2, the self-adaptive friction type shear-resistant large deformation anchor rod comprises an anchor rod main body, a sleeve assembly and a connecting assembly;
the anchor rod main body comprises a first rod body 11, a second rod body 12 and a third rod body 13 which are arranged along the left and right of the axis; an anchor backing plate 15 is movably arranged on the third rod body 13, and a fastening nut 14 is arranged on the third rod body in a threaded mode;
the first rod body 11 and the second rod body 12 are connected through a sleeve pipe assembly, and the third rod body 13 of the second rod body 12 is connected through a connecting assembly;
the sleeve assembly comprises a support sleeve 21 and a first adjusting assembly which is telescopic left and right, the support sleeve 21 is detachably sleeved between the first rod body 11 and the second rod body 12 and forms an inner cavity together with the first rod body 11 and the second rod body 12, the first adjusting assembly is positioned in the inner cavity, and two ends of the first adjusting assembly are fixedly connected with the first rod body 11 and the second rod body 12 respectively;
further, the first adjusting component comprises a plurality of first circular rings 24 arranged left and right, and the plurality of first circular rings 24 are mutually buckled to form a chain structure;
when the first rings 24 are elongated, the left-right length thereof is greater than the length of the support sleeve 21; thus, when the supporting sleeve 21 is broken, the plurality of first circular rings 24 can be in an extension state and bear corresponding shear stress and tensile force;
further, the connecting assembly comprises a plurality of second rings 31 arranged left and right, and the plurality of second rings 31 are mutually buckled to form a chain structure;
during the actual installation process, the specific length of the plurality of first circular rings 24 is determined according to the range of the shear band, and the tensile strength of the plurality of first circular rings 24 and the tensile strength of the plurality of second circular rings 31 are not lower than that of the anchor rod body;
as shown in fig. 4, further, the connecting assembly further includes a second adjusting assembly including an adjusting clamp plate 32, a clamp rod 33, and a second spring 34;
the middle parts of the pair of clamping rods 33 are mutually rotatably connected to form an X-shaped structure, the right ends of the clamping rods are respectively connected with the second ring 31 on the left side, the left ends of the clamping rods 33 are correspondingly connected with one ends of the pair of adjusting clamping plates 32, when the second ring 31 is stressed and stretched, the right ends of the pair of clamping rods 33 are close to each other, namely preferably, the right ends of the pair of clamping rods 33 are respectively connected with the second ring 31 through steel strands, and when the second ring 31 is stressed and stretched, the pair of clamping rods 33 are close to each other through the pulling of the steel strands, so that the other ends of the clamping rods are clamped and fixed by utilizing;
a pair of adjusting clamping plates 32 are enclosed into a cylindrical sleeve structure and sleeved on the second rod body 12, a plurality of left and right arrangement grooves 37 are formed in the inner wall of the cylindrical sleeve, a plurality of limiting lugs 35 fixed on the second rod body 12 are arranged between the cylindrical sleeve and the second rod body 12, and each limiting lug 35 is arranged in the groove 37 in a matching mode;
the outer side of the cylindrical sleeve is sleeved with a second spring 34; the groove 37 and the inner wall of the cylindrical sleeve are in smooth transition, so that the limiting lug 35 is embedded into different grooves 37 in a sliding mode according to the stress condition;
the connecting assembly is placed in a drill hole of a rock body, on one hand, a plurality of second rings 31 at the third rod body 13 are connected with each other to form a chain structure, which mainly plays a role of preliminarily adapting to shearing displacement and transmitting axial force, and can bear certain shearing displacement and axial force, on the other hand, the connecting assembly also comprises a second adjusting assembly, when the plurality of second rings 31 are mutually sheared and displaced or axially stretched, the right ends of a pair of clamping rods 33 are mutually close to each other, so that the left sides of the clamping rods are mutually clamped by utilizing levers, namely, a pair of adjusting clamping plates 32 are close to the middle part and clamp the second rod body 12, as a limiting lug 35 is arranged between the cylindrical sleeve and the second rod body 12, the limiting lug 35 is mutually matched with a groove 37 on the inner wall of the cylindrical sleeve, a second spring 34 is used for circumferentially elastically limiting the cylindrical sleeve, when the shearing displacement or the axial stretching is overlarge, the cylindrical sleeve can move right, the limiting convex block 35 is embedded into different grooves 37 according to the stress condition, so that continuous friction sliding displacement and stretching are realized, the whole body can effectively bear larger shearing displacement and axial force, the fracture of the connecting component is avoided, and the anchor rod is prevented from being sheared by larger shearing force and axial force on the surface of a rock body;
preferably, the plurality of grooves 37 are uniformly arranged in the circumferential direction of the second rod body 12, and then arranged left and right, the corresponding limiting lugs 35 are uniformly arranged on the second rod body 12 in the circumferential direction, and then arranged left and right, the limiting lugs 35 are of a hemispherical structure, the hemispherical structure not only realizes limiting in the grooves 37, but also effectively enables the hemispherical structure to excessively slide in different grooves 37 when the cylindrical sleeve slides relative to the second rod body 12;
furthermore, an annular groove 38 is formed in the left side of the cylindrical sleeve, and a limiting block 36 matched with the annular groove 38 is fixedly arranged at the right end of the second rod body 12.
When the cylinder sleeve moved to the second body of rod 12 right side, stopper 36 embedded in ring channel 38 realized final spacing, and at the relative second body of rod 12 of cylinder sleeve removal overall process, the cylinder spring suit was in the cylinder sleeve outside all the time to initial condition can be for inwards contracting or laminating state, and when for laminating state, the one end of cylinder spring was fixed on the second body of rod 12. And a third spring 39 forced inward may be provided between the right ends of the pair of clamping levers 33 so that the cylindrical sleeve is in a clamped state in the initial state;
further, the number of the first rings 24 is greater than that of the second rings 31, and when the plurality of first rings 24 are elongated, the left-right length is greater than that of the plurality of second rings 31; preferably, the number of the second rings 31 is 4 to 5;
as shown in fig. 3, the first adjusting component is a first spring 27, and the left and right ends of the first spring 27 are respectively fixedly connected to the first rod 11 and the second rod 12;
furthermore, a locking sleeve 23 is respectively sleeved on the first rod body 11 and the second rod body 12 in a sliding manner, and a limit ring block 22 is correspondingly arranged at the end close to the supporting sleeve 21;
each locking sleeve 23 is sleeved outside the support sleeve 21 in a threaded manner and abuts against the limit ring block 22 for limiting.
Furthermore, a through hole sealed by a locking pin 26 is arranged on the support sleeve 21, and a filling agent 25 is arranged in the inner cavity;
further, the support sleeve 21 is made of a hard alloy brittle metal material, and the surfaces of the first circular ring 24 and the second circular ring 31 are coated with an anti-corrosion material; the filler 25 is a polyurethane elastomer material;
when the self-adaptive friction type anti-shearing large-deformation anchor rod is used, the support sleeve 21 is sleeved between the first rod body 11 and the second rod body 12, preferably, the support sleeve 21 is installed on the support sleeve 21 through the locking sleeve 23 in a threaded mode, and the locking sleeve 23 is limited by the limiting ring block 22, so that the support sleeve 21 is detached and connected, and the inner cavity is guaranteed to be in a closed state; in addition, the support sleeve 21 can also be directly screwed on the first rod body 11 and the second rod body 12;
the anchor rod is placed in a drilled hole of a rock body, when the rock body is subjected to shearing displacement, the shearing force between the first rod body 11 and the second rod body 12 is different, namely the supporting sleeve 21 positioned near a shearing zone can bear certain shearing stress and tension, when the rock body is continuously sheared and deformed, the supporting sleeve 21 is not enough to bear the shearing stress and is sheared, and at the moment, the first adjusting assembly in the supporting sleeve starts to play a role;
according to one scheme, the first adjusting component is a plurality of first circular rings 24 which are buckled with each other, in an initial state, the plurality of first circular rings 24 are in a contraction and relaxation state in the supporting sleeve 21, after the supporting sleeve 21 is broken, the plurality of first circular rings 24 are bent and elongated and still connected between the first rod body 11 and the second rod body 12, so that the first adjusting component can continuously bear larger shearing stress and pulling force, adapts to the shearing deformation and axial displacement of a rock body, and releases energy;
alternatively, the first adjusting component is a first spring 27, and when the support sleeve 21 is broken, the first spring 27 is elongated and can bear certain shearing stress and tensile force.
Claims (10)
1. A self-adaptive friction type anti-shearing large-deformation anchor rod comprises an anchor rod main body, a sleeve assembly and a connecting assembly;
the anchor rod main body comprises a first rod body (11), a second rod body (12) and a third rod body (13) which are arranged along the left and right of an axis; an anchor backing plate (15) is movably arranged on the third rod body (13), and a fastening nut (14) is arranged on the third rod body in a threaded mode;
it is characterized in that the preparation method is characterized in that,
the first rod body (11) is connected with the second rod body (12) through a sleeve assembly, and the second rod body (12) is connected with the third rod body (13) through a connecting assembly;
the thimble assembly includes support sleeve (21) and controls flexible first adjusting part, and support sleeve (21) detachable suit is between the first body of rod (11) and the second body of rod (12) to form the inner chamber with the first body of rod (11) and the second body of rod (12), first adjusting part is located the inner chamber, both ends respectively with the first body of rod (11) and the second body of rod (12) fixed connection.
2. An adaptive friction type shear-resistant large deformation anchor rod according to claim 1, wherein the first adjusting assembly comprises a plurality of first rings (24) arranged left and right, the plurality of first rings (24) are mutually buckled to form a chain structure;
when the first rings (24) are elongated, the left-right length thereof is longer than the length of the support sleeve (21).
3. An adaptive friction type shear-resistant large deformation anchor rod according to claim 2, wherein the connecting assembly comprises a plurality of second rings (31) arranged in left and right, and the second rings (31) are mutually buckled to form a chain structure.
4. An adaptive friction shear resistant large deformation anchor rod according to claim 3, characterized in that the connection assembly further comprises a second adjustment assembly comprising an adjustment clamp plate (32), a clamping rod (33) and a second spring (34);
the middle parts of the pair of clamping rods (33) are mutually rotatably connected to form an X-shaped structure, the right ends of the clamping rods are connected with the second ring (31) on the left, the left ends of the clamping rods are correspondingly connected with one ends of the pair of adjusting clamping plates (32), and when the second ring (31) is stressed and stretched, the right ends of the pair of clamping rods (33) are mutually close;
a pair of adjusting clamping plates (32) are enclosed into a cylindrical sleeve structure and sleeved on the second rod body (12), a plurality of grooves (37) which are arranged left and right are formed in the inner wall of the cylindrical sleeve, a plurality of limiting lugs (35) which are fixed on the second rod body (12) are arranged between the cylindrical sleeve and the second rod body (12), and each limiting lug (35) is arranged in each groove (37) in a matched mode;
and the second spring (34) is sleeved outside the cylindrical sleeve.
5. A self-adaptive friction type shear-resistant large-deformation anchor rod according to claim 4, wherein the plurality of grooves (37) are uniformly arranged along the circumferential direction of the second rod body (12) and then arranged left and right, the corresponding limiting lugs (35) are uniformly arranged on the second rod body (12) along the circumferential direction and then arranged left and right, and the limiting lugs (35) are of a hemispherical structure.
6. A self-adaptive friction type shear-resistant large deformation anchor rod as claimed in claim 4, wherein the left side of the cylindrical sleeve is provided with an annular groove (38), and the right end of the second rod body (12) is fixedly provided with a limit block (36) matched with the annular groove (38).
7. An adaptive friction type shear-resistant large deformation anchor rod according to any one of claims 3 to 6, wherein the number of the first rings (24) is greater than the number of the second rings (31), and when the plurality of first rings (24) are elongated, the left-right length is greater than the elongated length of the plurality of second rings (31).
8. The self-adaptive friction type shear-resistant large deformation anchor rod according to claim 1, wherein the first adjusting component is a first spring (27), and the left end and the right end of the first spring (27) are respectively and fixedly connected with the first rod body (11) and the second rod body (12).
9. The self-adaptive friction type shear-resistant large deformation anchor rod as claimed in claim 7, wherein the first rod body (11) and the second rod body (12) are respectively sleeved with a locking sleeve (23) in a sliding manner, and a limit ring block (22) is correspondingly arranged at the end close to the supporting sleeve (21);
each locking sleeve (23) is sleeved outside the support sleeve (21) in a threaded manner and abuts against the limit ring block (22) for limiting.
10. An adaptive friction type shear-resistant large deformation anchor rod according to claim 9, wherein the support sleeve (21) is provided with a through hole closed by a locking pin (26), and a filler (25) is arranged in the inner cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110411619.1A CN113026739B (en) | 2021-04-16 | 2021-04-16 | Self-adaptive friction type anti-shearing large-deformation anchor rod |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110411619.1A CN113026739B (en) | 2021-04-16 | 2021-04-16 | Self-adaptive friction type anti-shearing large-deformation anchor rod |
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| Publication Number | Publication Date |
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| CN113026739A true CN113026739A (en) | 2021-06-25 |
| CN113026739B CN113026739B (en) | 2022-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110411619.1A Active CN113026739B (en) | 2021-04-16 | 2021-04-16 | Self-adaptive friction type anti-shearing large-deformation anchor rod |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114483135A (en) * | 2021-12-28 | 2022-05-13 | 武汉大学 | Sectional bidirectional large-deformation anchor rod |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1143941A (en) * | 1997-07-29 | 1999-02-16 | Ohbayashi Corp | Anchor fixture part structure |
| CN103643977A (en) * | 2013-11-21 | 2014-03-19 | 中国矿业大学 | Full-anchor partition pressure transferring grouting anchor rod and application method thereof |
| CN206419054U (en) * | 2016-12-16 | 2017-08-18 | 安徽理工大学 | A kind of self-drilling type two-stage, which allows, presses recyclable grouted anchor bar |
| CN206655711U (en) * | 2016-12-14 | 2017-11-21 | 山东科技大学 | One kind, which allows, presses large deformation anchor rod |
| CN206889004U (en) * | 2017-07-15 | 2018-01-16 | 中铁十四局集团第二工程有限公司 | One kind is anti-to break large deformation anchor rod |
| CN109057842A (en) * | 2018-09-20 | 2018-12-21 | 河南理工大学 | It cuts drawing conversion flexibility and allows pressure shear anchor arm and its construction supporting method |
| CN112177648A (en) * | 2020-09-28 | 2021-01-05 | 中国矿业大学 | Novel anti-shearing large-deformation energy-absorbing anchor rod |
-
2021
- 2021-04-16 CN CN202110411619.1A patent/CN113026739B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1143941A (en) * | 1997-07-29 | 1999-02-16 | Ohbayashi Corp | Anchor fixture part structure |
| CN103643977A (en) * | 2013-11-21 | 2014-03-19 | 中国矿业大学 | Full-anchor partition pressure transferring grouting anchor rod and application method thereof |
| CN206655711U (en) * | 2016-12-14 | 2017-11-21 | 山东科技大学 | One kind, which allows, presses large deformation anchor rod |
| CN206419054U (en) * | 2016-12-16 | 2017-08-18 | 安徽理工大学 | A kind of self-drilling type two-stage, which allows, presses recyclable grouted anchor bar |
| CN206889004U (en) * | 2017-07-15 | 2018-01-16 | 中铁十四局集团第二工程有限公司 | One kind is anti-to break large deformation anchor rod |
| CN109057842A (en) * | 2018-09-20 | 2018-12-21 | 河南理工大学 | It cuts drawing conversion flexibility and allows pressure shear anchor arm and its construction supporting method |
| CN112177648A (en) * | 2020-09-28 | 2021-01-05 | 中国矿业大学 | Novel anti-shearing large-deformation energy-absorbing anchor rod |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114483135A (en) * | 2021-12-28 | 2022-05-13 | 武汉大学 | Sectional bidirectional large-deformation anchor rod |
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| Publication number | Publication date |
|---|---|
| CN113026739B (en) | 2022-01-18 |
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