CN114382078A - Anchor cable bundle steel strand stress and deformation coordination member and use method thereof - Google Patents
Anchor cable bundle steel strand stress and deformation coordination member and use method thereof Download PDFInfo
- Publication number
- CN114382078A CN114382078A CN202210077194.XA CN202210077194A CN114382078A CN 114382078 A CN114382078 A CN 114382078A CN 202210077194 A CN202210077194 A CN 202210077194A CN 114382078 A CN114382078 A CN 114382078A
- Authority
- CN
- China
- Prior art keywords
- cylindrical
- anchor ring
- steel strand
- bearing plate
- stress
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 104
- 239000010959 steel Substances 0.000 title claims abstract description 104
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 35
- 239000012530 fluid Substances 0.000 claims abstract description 20
- 239000011435 rock Substances 0.000 claims description 11
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 238000004873 anchoring Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 5
- 238000005553 drilling Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 210000002435 tendon Anatomy 0.000 claims 3
- 230000000694 effects Effects 0.000 abstract description 4
- 239000006185 dispersion Substances 0.000 description 5
- 230000007774 longterm Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
-
- 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
- E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/008—Anchoring or tensioning means
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/30—Miscellaneous comprising anchoring details
Abstract
A coordination component for stress and deformation between anchor cable bundle steel strands and a use method thereof are disclosed, which comprises a cylindrical anchor ring, a closed bearing plate, an inner anchor ring and a sealing bag; the cylindrical anchor ring is provided with at least two cylindrical channels A parallel to the axial direction of the cylindrical anchor ring, and the adjacent cylindrical channels A are communicated through a transverse channel arranged on the cylindrical anchor ring; the closed bearing plate is arranged on the bottom surface of the cylindrical anchor ring, and a cylindrical channel B is formed in the closed bearing plate; the sealing bag is arranged in the cylindrical channel A and the transverse channel, pressure-bearing fluid is filled in the sealing bag, and a threading hole is formed in the sealing bag; an inner anchor ring is arranged at the upper end of the sealing bag in the cylindrical channel A; a clamping piece is arranged between the inner hole of the inner anchor ring and the steel strand; the tensile force borne by the anchor cable is uniformly distributed to each steel strand through the flow of the pressure-bearing fluid among the cylindrical channels A, the stress state of each steel strand is optimized, and the effect of coordinating the stress and deformation of each steel strand is achieved.
Description
Technical Field
The invention relates to the technical field of rock and soil anchoring, in particular to a stress and deformation coordination component between anchor cable bundle steel strands and a use method.
Background
The anchor cable reinforcement is used as a common support mode and plays a very important role in the fields of tunnels, slopes and the like. However, conventional cables have a problem of stress concentration, and in order to overcome this problem and to improve the ultimate pullout resistance of the cable, researchers have developed tension dispersion cables and pressure dispersion cables.
The inner anchoring sections of the multiple groups of steel strands of the stress dispersion type anchor cable are respectively arranged at different depths of the rock body, so that the shearing force between the steel strands and the surrounding rock is uniformly distributed at different depths, and the grouting body of the anchoring sections is stressed uniformly. However, in a long-term working state, because the free sections of the steel strands are different, the surrounding rock deformation can cause uneven stress on the steel strands, and the shortest steel strand is stressed greatly and is easy to damage.
Disclosure of Invention
The invention aims to overcome the defects, and provides a stress and deformation coordination component among anchor cable bundle steel strands with distributed stress and a using method thereof, which are used for adjusting the stress state of each steel strand, enabling each steel strand to be uniformly stressed and achieving the effect of coordinating the stress and deformation among the steel strands.
The invention solves the technical problem by adopting the scheme that the stress and deformation coordination component between the anchor cable bundle steel strands comprises a cylindrical anchor ring, a closed bearing plate, an inner anchor ring and a sealing bag;
at least two cylindrical channels A parallel to the axial direction of the cylindrical anchor ring are arranged on the cylindrical anchor ring, and the cylindrical channels A
The cylindrical anchor ring is penetrated, and the adjacent cylindrical channels A are communicated through a transverse channel arranged on the cylindrical anchor ring;
the closed bearing plate is arranged on the bottom surface of the cylindrical anchor ring, and a cylindrical channel is formed in the closed bearing plate
Cylindrical channels B arranged in one-to-one correspondence and cylindrical channels
The sealing bearing plate penetrates through the sealing bearing plate;
the sealing bag is arranged in the cylindrical passage A and the transverse passage, pressure-bearing fluid is filled in the sealing bag, and the sealing bag is provided with the cylindrical passage
The threading holes are arranged in a one-to-one correspondence manner;
an inner anchor ring is arranged at the upper end of the sealing bag in the cylindrical channel A, and the sealing bag is nested in a space formed by the cylindrical anchor ring, the closed bearing plate and the inner anchor ring;
in the same cylindrical passage
The inner hole, the threading hole and the cylindrical channel B of the inner anchor ring correspond to each other up and down to form a steel strand preformed hole;
the steel strand penetrates through the steel strand preformed hole, and a clamping piece is arranged between the inner hole of the inner anchor ring and the steel strand.
Further, the transverse channel is formed in the bottom surface of the cylindrical anchor ring.
Furthermore, the closed bearing plate is disc-shaped, and the cylindrical anchor ring is welded with the closed bearing plate.
Further, theThe sealing bag comprises an outer shape, a number and a cylindrical channel
A corresponding annular cylindrical bladder, and a fluid channel bladder corresponding to the transverse channel.
A use method of a stress and deformation coordination member between anchor cable bundle steel strands comprises the following steps:
the method comprises the following steps: drilling holes in the designed supporting positions of the rock mass, and anchoring the inner ends of the anchor cable bundles in the drilled holes;
step two: penetrating steel strands into steel strand preformed holes in the coordination member, wherein the number of the steel strands is consistent with that of the steel strand preformed holes;
step three: the clamping piece is matched with the steel strand, the clamping piece is arranged between the inner hole of the inner anchor ring and the steel strand, the steel strand penetrates through the jack, and prestress is applied to the steel strand to meet the design requirement;
step four: and removing the jack after the prestress tensioning is finished, detecting the displacement coordination condition of each steel strand, cutting off redundant steel strands and sealing anchors to finish the installation after the detection is qualified.
Furthermore, in the third step, when the prestress is applied, all the steel strands in the anchor cable should be tensioned simultaneously.
Furthermore, after the installation is finished, when the surrounding rock deforms to cause one of the steel strands of the anchor cable to be subjected to large tensile force, the cylindrical channel where the steel strand is located can be pulled
The inner anchor ring moves towards the direction close to the closed pressure bearing plate, under the action of force, the inner anchor ring and the closed pressure bearing plate generate relative displacement, and pressure bearing fluid between the inner anchor ring and the closed pressure bearing plate is extruded to the adjacent cylindrical channels
Correspondingly, adjacent cylindrical passages
The inner anchor ring can be pushed to the direction far away from the closed bearing plate and is adjacent to the closed bearing plateCylindrical channel
The steel strand is in a tight state under the thrust of the inner anchor ring, and two adjacent cylindrical channels are realized
The stress and deformation of the inner steel strand are coordinated.
Compared with the prior art, the invention has the following beneficial effects: the anchor cable is simple in structure and reasonable in design, pressure-bearing fluid is arranged inside the anchor cable, the tension borne by the anchor cable is uniformly distributed to each steel strand through the flow of the pressure-bearing fluid among the cylindrical channels A, the stress state of each steel strand is optimized, and the effect of coordinating the stress and deformation of each steel strand is achieved.
Drawings
The invention is further described with reference to the following figures.
Fig. 1 is a cross-sectional view of the coordinating member.
Fig. 2 is a schematic structural view of a cylindrical anchor ring.
Fig. 3 is a schematic structural view of the closed pressure bearing plate.
Fig. 4 is a schematic view of a sealed bladder.
Fig. 5 is a schematic structural view of the coordinating member.
In the figure: 1-clamping piece, 2-cylindrical anchor ring, 3-closed bearing plate, 4-inner anchor ring, 5-sealing bag, 6-bearing fluid, 7-cylindrical channel A, 8-cylindrical channel B and 9-transverse channel.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1-5, the anchor cable bundle steel strand stress and deformation coordination member comprises a cylindrical anchor ring 2, a closed bearing plate 3, an inner anchor ring 4 and a sealing capsule 5;
at least two cylindrical passages A7 parallel to the axial direction of the cylindrical anchor ring are arranged on the cylindrical anchor ring
The adjacent cylindrical channels A are communicated through a transverse channel 9 arranged on the cylindrical anchor ring;
the closed bearing plate is arranged on the bottom surface of the cylindrical anchor ring, and a cylindrical channel is formed in the closed bearing plate
Cylindrical passages B8 arranged in one-to-one correspondence
The steel strand penetrates through the closed bearing plate, and when the anchor cable is installed, the steel strand penetrates through the cylindrical passage B, and the diameter of the cylindrical passage B is matched with the outer diameter of the steel strand;
the sealing bag is arranged in the cylindrical passage A and the transverse passage, the sealing bag is filled with pressure-bearing fluid 6, and the sealing bag is provided with the cylindrical passage
The threading holes are arranged in a one-to-one correspondence manner;
an inner anchor ring is arranged at the upper end of the sealing bag in the cylindrical passage A, is similar to an anchor ring of a single anchor cable, and has the outer diameter matched with the diameter of the cylindrical passage A; the sealing bag is nested in a space formed by the cylindrical anchor ring, the closed bearing plate and the inner anchor ring;
in the same cylindrical passage
The inner hole, the threading hole and the cylindrical channel B of the inner anchor ring correspond to each other up and down to form a steel strand preformed hole;
the steel strand penetrates through the steel strand preformed hole, a clamping piece 1 is arranged between the inner hole of the inner anchor ring and the steel strand, when the anchor cable is installed, the inner anchor ring is arranged in the cylindrical channel A, and the steel strand penetrates through the inner hole of the inner anchor ring; when the steel strand is subjected to tensile force, the inner anchor ring and the clamping piece act together to generate clamping force to fix the steel strand.
In this embodiment, the transverse channel opens at the bottom of the cylindrical anchor ring.
In this embodiment, the closed pressure-bearing plate is shaped like a disk, and the cylindrical anchor ring is welded to the closed pressure-bearing plate, and the sealing bag is first installed in the cylindrical anchor ring and then welded.
In this embodiment, the sealing bladder includes a profile and number and cylindrical channels
The corresponding annular columnar bag body and the fluid channel bag body corresponding to the transverse channel have better elastic deformation performance; the outer diameter of the annular columnar bag body is matched with the inner diameter of the columnar channel A, and the inner diameter of the threading hole is matched with the outer diameter of the steel strand; the sealed bag is used for containing pressure-bearing fluid and preventing the pressure-bearing fluid from leaking to the outside when the pressure-bearing fluid is pressurized.
In this embodiment, the cylindrical anchor ring is formed by drilling a hole in a cylindrical steel member.
A use method of a stress and deformation coordination member between anchor cable bundle steel strands comprises the following steps:
the method comprises the following steps: drilling holes in the designed supporting positions of the rock mass, and anchoring the inner ends of the anchor cable bundles in the drilled holes;
step two: penetrating steel strands into steel strand preformed holes in the coordination member, wherein the number of the steel strands is consistent with that of the steel strand preformed holes;
step three: the clamping piece is matched with the steel strand, the clamping piece is arranged between the inner hole of the inner anchor ring and the steel strand, the steel strand penetrates through the jack, and prestress is applied to the steel strand to meet the design requirement;
step four: and removing the jack after the prestress tensioning is finished, detecting the displacement coordination condition of each steel strand, cutting off redundant steel strands and sealing anchors to finish the installation after the detection is qualified.
In the third step, when prestress is applied, all the steel strands in the anchor cable are simultaneously tensioned; when the existing stress dispersion type anchor cable is tensioned, different steel strands have the same tensioning displacement, so that the stress states are different, the prestress of the anchor cable is inconvenient to adjust, and the coordination member is internally provided with a pressure-bearing fluid, so that each steel strand can be ensured to be in the same stress state, and the construction is more convenient.
The existing force dispersion type anchor cable is in a long-term working state, the stress of each steel strand is not uniform due to surrounding rock deformation, the strength of the anchor cable cannot be fully utilized, and the anchor cable is easy to damage.
After the coordination member is installed, when surrounding rock deformation causes one steel strand of the anchor cable to be subjected to large tensile force, the coordination member can pull the cylindrical channel where the steel strand is located
The inner anchor ring moves towards the direction close to the closed pressure bearing plate, under the action of force, the inner anchor ring and the closed pressure bearing plate generate relative displacement, and pressure bearing fluid between the inner anchor ring and the closed pressure bearing plate is extruded to the adjacent cylindrical channels
Correspondingly, adjacent cylindrical passages
The inner anchor ring can be pushed to the direction far away from the closed bearing plate, and the adjacent cylindrical channels
The steel strand is in a tight state under the thrust of the inner anchor ring, and two adjacent cylindrical channels are realized
The stress and deformation of the inner steel strand are coordinated.
The traditional anchorage device can not adjust the stress and deformation of the steel strands, and the coordination member is internally provided with pressure-bearing fluid, so that the tensile force borne by the anchor cable is uniformly distributed to each steel strand through the flow of the pressure-bearing fluid among the cylindrical channels A, the stress state of each steel strand is optimized, and the effect of coordinating the stress and deformation of each steel strand is achieved.
If this patent discloses or refers to parts or structures that are fixedly connected to each other, the fixedly connected may be understood as: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).
In the description of this patent, it is to be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the patent, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
The above-mentioned preferred embodiments, further illustrating the objects, technical solutions and advantages of the present invention, should be understood that the above-mentioned are only preferred embodiments of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides an anchor rope restraints steel strand stress and deformation coordination component which characterized in that: comprises a cylindrical anchor ring, a closed bearing plate, an inner anchor ring and a sealing bag;
at least two cylindrical channels A parallel to the axial direction of the cylindrical anchor ring are arranged on the cylindrical anchor ring, and the cylindrical channels A
The cylindrical anchor ring is penetrated, and the adjacent cylindrical channels A are communicated through a transverse channel arranged on the cylindrical anchor ring;
the closed bearing plate is arranged on the bottom surface of the cylindrical anchor ring, and a cylindrical channel is formed in the closed bearing plate
Cylindrical channels B arranged in one-to-one correspondence and cylindrical channels
The sealing bearing plate penetrates through the sealing bearing plate;
the sealing bag is arranged in the cylindrical passage A and the transverse passage, pressure-bearing fluid is filled in the sealing bag, and the sealing bag is provided with the cylindrical passage
The threading holes are arranged in a one-to-one correspondence manner;
an inner anchor ring is arranged at the upper end of the sealing bag in the cylindrical channel A, and the sealing bag is nested in a space formed by the cylindrical anchor ring, the closed bearing plate and the inner anchor ring;
in the same cylindrical passage
The inner hole, the threading hole and the cylindrical channel B of the inner anchor ring correspond to each other up and down to form a steel strand preformed hole;
the steel strand penetrates through the steel strand preformed hole, and a clamping piece is arranged between the inner hole of the inner anchor ring and the steel strand.
2. The tendon bundle steel strand stress and deformation coordination member as claimed in claim 1, wherein: the transverse channel is arranged on the bottom surface of the cylindrical anchor ring.
3. The tendon bundle steel strand stress and deformation coordination member as claimed in claim 1, wherein: the closed bearing plate is disc-shaped, and the cylindrical anchor ring is welded with the closed bearing plate.
4. The tendon bundle steel strand stress and deformation coordination member as claimed in claim 1, wherein: the sealing bag comprises an outer shape, a number and a cylindrical channel
A corresponding annular cylindrical bladder, and a fluid channel bladder corresponding to the transverse channel.
5. The use method of the anchor cable bundle steel strand stress and deformation coordinating component is adopted by the anchor cable bundle steel strand stress and deformation coordinating component according to claim 1, and is characterized by comprising the following steps of:
the method comprises the following steps: drilling holes in the designed supporting positions of the rock mass, and anchoring the inner ends of the anchor cable bundles in the drilled holes;
step two: penetrating steel strands into steel strand preformed holes in the coordination member, wherein the number of the steel strands is consistent with that of the steel strand preformed holes;
step three: the clamping piece is matched with the steel strand, the clamping piece is arranged between the inner hole of the inner anchor ring and the steel strand, the steel strand penetrates through the jack, and prestress is applied to the steel strand to meet the design requirement;
step four: and removing the jack after the prestress tensioning is finished, detecting the displacement coordination condition of each steel strand, cutting off redundant steel strands and sealing anchors to finish the installation after the detection is qualified.
6. The method for coordinating stress and deformation between steel strands according to claim 5, wherein: in the third step, when prestress is applied, all the steel strands in the anchor cable should be tensioned simultaneously.
7. The method for coordinating stress and deformation between steel strands according to claim 5, wherein: after the installation is finished, when the surrounding rock is deformed to cause one of the steel strands of the anchor cable to be subjected to larger tension, the cylindrical channel where the steel strand is located can be pulled
The inner anchor ring moves towards the direction close to the closed pressure bearing plate, under the action of force, the inner anchor ring and the closed pressure bearing plate generate relative displacement, and pressure bearing fluid between the inner anchor ring and the closed pressure bearing plate is extruded to the adjacent cylindrical channels
Correspondingly, adjacent cylindrical passages
The inner anchor ring can be pushed to the direction far away from the closed bearing plate, and the adjacent cylindrical channels
The steel strand is in a tight state under the thrust of the inner anchor ring, and two adjacent cylindrical channels are realized
The stress and deformation of the inner steel strand are coordinated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210077194.XA CN114382078B (en) | 2022-01-24 | 2022-01-24 | Stress and deformation coordination component among anchor cable bundle steel strands and use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210077194.XA CN114382078B (en) | 2022-01-24 | 2022-01-24 | Stress and deformation coordination component among anchor cable bundle steel strands and use method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114382078A true CN114382078A (en) | 2022-04-22 |
| CN114382078B CN114382078B (en) | 2024-01-30 |
Family
ID=81203997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210077194.XA Active CN114382078B (en) | 2022-01-24 | 2022-01-24 | Stress and deformation coordination component among anchor cable bundle steel strands and use method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114382078B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009127283A (en) * | 2007-11-22 | 2009-06-11 | Jsd:Kk | Method of anchoring plurality of prestressing steel strands by after-bond method, and tool for use therein |
| CN103758125A (en) * | 2014-01-21 | 2014-04-30 | 龚金京 | Squeezing lock head spring bearing plate stress dispersing type large-tonnage expanding head anchor cable |
| WO2015127959A1 (en) * | 2014-02-25 | 2015-09-03 | Vsl International Ag | Removable anchor |
| CN108071112A (en) * | 2016-11-17 | 2018-05-25 | 中铁西北科学研究院有限公司深圳南方分院 | The safeguard structure and its means of defence of anchorage cable anchoring section |
| CN108756970A (en) * | 2018-07-12 | 2018-11-06 | 安徽理工大学 | A kind of hollow grouting cable anchor of segmented and application method |
| CN111139824A (en) * | 2020-01-16 | 2020-05-12 | 华侨大学 | Device for anchor rod prestress nondestructive tensioning and tensioning method thereof |
| CN112160778A (en) * | 2020-09-23 | 2021-01-01 | 中铁第四勘察设计院集团有限公司 | Tunnel side wall anchor rod hole grouting exhaust and pressure stabilizing device and construction method |
| CN112962594A (en) * | 2021-02-22 | 2021-06-15 | 大连理工大学 | Construction method of environment-friendly tension-compression composite dispersed anchor rod |
| US11187081B1 (en) * | 2020-06-22 | 2021-11-30 | Liaoning University | Self-anchored opposite-pulling anti-impact anchor cable for sectional coal pillars and using method thereof |
| CN217150213U (en) * | 2022-01-24 | 2022-08-09 | 福州大学 | Stress and deformation coordination component between stress dispersion type anchor cable and steel strands |
-
2022
- 2022-01-24 CN CN202210077194.XA patent/CN114382078B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009127283A (en) * | 2007-11-22 | 2009-06-11 | Jsd:Kk | Method of anchoring plurality of prestressing steel strands by after-bond method, and tool for use therein |
| CN103758125A (en) * | 2014-01-21 | 2014-04-30 | 龚金京 | Squeezing lock head spring bearing plate stress dispersing type large-tonnage expanding head anchor cable |
| WO2015127959A1 (en) * | 2014-02-25 | 2015-09-03 | Vsl International Ag | Removable anchor |
| CN108071112A (en) * | 2016-11-17 | 2018-05-25 | 中铁西北科学研究院有限公司深圳南方分院 | The safeguard structure and its means of defence of anchorage cable anchoring section |
| CN108756970A (en) * | 2018-07-12 | 2018-11-06 | 安徽理工大学 | A kind of hollow grouting cable anchor of segmented and application method |
| CN111139824A (en) * | 2020-01-16 | 2020-05-12 | 华侨大学 | Device for anchor rod prestress nondestructive tensioning and tensioning method thereof |
| US11187081B1 (en) * | 2020-06-22 | 2021-11-30 | Liaoning University | Self-anchored opposite-pulling anti-impact anchor cable for sectional coal pillars and using method thereof |
| CN112160778A (en) * | 2020-09-23 | 2021-01-01 | 中铁第四勘察设计院集团有限公司 | Tunnel side wall anchor rod hole grouting exhaust and pressure stabilizing device and construction method |
| CN112962594A (en) * | 2021-02-22 | 2021-06-15 | 大连理工大学 | Construction method of environment-friendly tension-compression composite dispersed anchor rod |
| CN217150213U (en) * | 2022-01-24 | 2022-08-09 | 福州大学 | Stress and deformation coordination component between stress dispersion type anchor cable and steel strands |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114382078B (en) | 2024-01-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102619226B (en) | Pressure dispersion type yielding anchor cable | |
| CN109736864B (en) | Mining hydraulic constant-resistance deformation automatic pressure relief anchor rod and working method thereof | |
| CN109778851B (en) | Construction method for multistage expandable supporting body bag grouting prestressed anchor rod | |
| CN202543920U (en) | Pressure distributed type yielding anchor cable | |
| CN112081613B (en) | Roadway surrounding rock supporting method capable of applying pretightening force in grading manner | |
| US11280195B2 (en) | Single-anchor centrally grouted full-length anchored steel wire bundle and supporting method thereof | |
| CN217150213U (en) | Stress and deformation coordination component between stress dispersion type anchor cable and steel strands | |
| CN109056722B (en) | Full-length corrosion-resistant bonded pre-stressed anchor cable | |
| CN113605931B (en) | Soil layer interface urban tunnel crossing reinforcement structure and construction method thereof | |
| CN108842792B (en) | Layered lifting and unloading type ground pulling anchor rod and construction method | |
| CN108661092B (en) | Pile body connecting device for self-balancing test pile | |
| CN213805355U (en) | Pressure dispersion type self-adaptive multi-stage yielding anchor cable | |
| CN114382078B (en) | Stress and deformation coordination component among anchor cable bundle steel strands and use method | |
| CN112096433A (en) | Main body supporting structure applied to roadway surrounding rock supporting | |
| CN210031791U (en) | Anchor cable hole bottom reverse traction device | |
| CN111576407A (en) | Uniform tensioning device and method for prestressed anchor cable | |
| CN108979689B (en) | Anchor cable structure capable of secondary grouting, tunnel surrounding rock anchoring structure and construction method | |
| CN210509244U (en) | Anchor rod | |
| CN211922651U (en) | Anchor cable device for engineering | |
| CN109944241B (en) | Anchor cable hole bottom reverse traction device and anchor cable installation method | |
| CN112726598A (en) | Full-bonding type prestressed steel anchor pipe cable structure and construction method thereof | |
| CN117449331B (en) | Prestressed anchor cable sash Liang Bianpo supporting device and supporting method thereof | |
| CN215860255U (en) | Anti-overflow thick liquid is from expanding from big envelope and flexible slip casting stock | |
| CN218437086U (en) | Novel deep foundation pit side slope supporting structure | |
| CN217999635U (en) | Slip casting anchor cable rod |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |