CN114908757A - Grouting construction method for anchor cable of deep foundation pit - Google Patents
Grouting construction method for anchor cable of deep foundation pit Download PDFInfo
- Publication number
- CN114908757A CN114908757A CN202210548703.2A CN202210548703A CN114908757A CN 114908757 A CN114908757 A CN 114908757A CN 202210548703 A CN202210548703 A CN 202210548703A CN 114908757 A CN114908757 A CN 114908757A
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- anchor cable
- grouting
- hole
- construction method
- foundation pit
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- 238000010276 construction Methods 0.000 title claims abstract description 38
- 238000005553 drilling Methods 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000004140 cleaning Methods 0.000 claims abstract description 4
- 238000012544 monitoring process Methods 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 3
- 238000007711 solidification Methods 0.000 abstract description 2
- 230000008023 solidification Effects 0.000 abstract description 2
- 230000035882 stress Effects 0.000 description 16
- 230000002349 favourable effect Effects 0.000 description 10
- 238000007569 slipcasting Methods 0.000 description 6
- 239000002689 soil Substances 0.000 description 6
- 239000011440 grout Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 239000011435 rock Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
-
- 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
- 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
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/003—Injection of material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention relates to the technical field of anchor cable construction, in particular to a grouting construction method for an anchor cable of a deep foundation pit. The method comprises the following construction steps of drilling holes in a preset construction surface, leveling and cleaning the surface of the drilled hole, putting an anchor cable into the hole after the drilled hole is drilled, inserting a grouting pipe, pouring concrete into the bottommost part of the hole, waiting for the concrete to solidify, carrying out tensile stress treatment on the anchor cable, then integrally pouring concrete into the hole, and fixing an anchor cable mounting fixing seat at a hole opening after the concrete in the hole solidifies. The grouting pipe is directly inserted into the bottom of the hole, the grouting pipe is pulled out during grouting, the grouting uniformity is guaranteed, grouting solidification is performed at the bottom, a foundation support is provided for tensile stress treatment of the anchor cable, the anchor cable is reduced in prestress shrinkage by installing the fixing base, and the tensile stress of the anchor cable to a building is improved.
Description
Technical Field
The invention relates to the technical field of anchor cable construction, in particular to a grouting construction method for an anchor cable of a deep foundation pit.
Background
At present, in building construction, especially side slope construction, anchor cable construction is used as important basic engineering to ensure the stability of the foundation of the building and provide a connecting fixed point for the building, and a prestressed anchor cable is an active supporting mode which is used for embedding a steel strand into a rock stratum for prestressing and transferring the supporting stress of a main body structure to a deep stable rock stratum.
In the related art, the anchor cable is inserted into the grouting hole and then subjected to pre-tensioning stress treatment and grouting, wherein the anchor cable is pressed close to the hole wall due to the influence of the punching quality and the bending of the self gravity of the anchor cable and directly contacts with the surrounding soil body, so that the rusting and aging of the anchor cable are accelerated, the service life of the anchor cable is shortened, and the stability of concrete grouting is not facilitated.
Disclosure of Invention
The invention provides a grouting construction method for an anchor cable of a deep foundation pit, which aims to avoid the situation that the anchor cable is close to a soil body and increase the stability of concrete grouting.
The invention provides a grouting construction method for an anchor cable of a deep foundation pit, which adopts the following technical scheme:
a grouting construction method for an anchor cable of a deep foundation pit comprises the following construction steps:
the method comprises the following steps: drilling holes on the preset construction surface, and flattening and cleaning the surfaces of the drilled holes;
step two: after drilling holes, putting the anchor cable into the holes, and inserting the anchor cable into a grouting pipe;
step three: pouring concrete to the bottommost part in the hole, and waiting for the concrete to solidify;
step four: carrying out tensile stress treatment on the anchor cable, and then integrally pouring concrete into the hole;
step five: and after the concrete in the hole is solidified, fixing the anchor cable mounting fixing seat at the orifice.
Through adopting above-mentioned technical scheme, with slip casting pipe disect insertion hole bottom, pull out the slip casting pipe when filling, guarantee the homogeneity that fills, carry out grout earlier and solidify in the bottom, for carrying out the tensile stress to the anchor rope and handling and provide basic support, the installation fixing base reduces anchor rope prestressing force shrink, improves the tensile stress of anchor rope to the building.
Preferably, in the drilling process, a laser detector is used for monitoring the hole bending degree, and the drilling direction is adjusted according to the detection data.
Through adopting above-mentioned technical scheme, monitoring drilling straightness accuracy prevents that drilling overbending from making the anchor rope attached on the pore wall soil layer when flare-outing.
Preferably, in the second step, when the anchor cable is placed in the hole, the anchor cable is clamped by the centering support and is placed synchronously.
By adopting the technical scheme, the anchor cable is kept at the center of the hole by the righting frame, so that the phenomenon that the anchor cable is bent and is close to the soil body of the hole wall due to the self weight of the anchor cable is reduced.
Preferably, in the third step, when the concrete is poured into the bottommost part of the hole, the anchor cable at the bottom of the hole is bent first.
By adopting the technical scheme, the bent anchor cable is prevented from being separated from the concrete block due to overlarge tensile stress when the tensile stress is processed.
Preferably, in the fourth step, when the anchor cable is subjected to tensile stress treatment, the anchor cable is stretched by using a tensile machine, and the tensile stress is monitored by using a dynamometer.
By adopting the technical scheme, the tension monitoring is favorable for controlling the tensioning degree of the anchor cable, and the reduction of the construction quality due to the overlarge or undersize prestress is prevented.
Preferably, when the concrete is integrally poured into the holes in the step four, the grouting pipes are pulled out at a constant speed according to the grouting speed.
Through adopting above-mentioned technical scheme, the slip casting pipe is favorable to guaranteeing the homogeneity of grout at the uniform velocity according to slip casting speed.
Preferably, the pulling and grouting of the grouting pipe are stopped when the grouting pipe is pulled out for 1-1.5m, and the grouting pipe is pulled out after the concrete is semi-solidified.
By adopting the technical scheme, the grouting is carried out intermittently, and each section of the anchor cable is ensured to be positioned at the center of the hole to the maximum extent.
Preferably, the centralizing frame is arranged at the end part of the grouting pipe, the grouting pipe is assembled in sections, and the centralizing frame is provided with a third-level support groove.
By adopting the technical scheme, the three-level support grooves are favorable for adjusting the height of the anchor cable according to different thicknesses and keeping the anchor cable neutral.
Preferably, the bottom end of the righting frame is a plane, the other end of the righting frame is an inclined curved surface, one side of the bearing groove of the righting frame is provided with an opening, and an anchor cable is placed on the opening.
Through adopting above-mentioned technical scheme, the slope of righting the frame is favorable to reducing the resistance when taking out, and the installation that improves righting the frame simultaneously is firm.
Preferably, the anchor cable is provided with a pull-reaction seat at the hole, and the pull-reaction seat is provided with a roller.
Through adopting above-mentioned technical scheme, draw and to answer the seat and be favorable to keeping anchor rope in the centre of orifice department, play the supporting role.
In summary, the invention has the following beneficial technical effects:
1. the grouting pipe is directly inserted into the bottom of the hole, the grouting pipe is pulled out during grouting, the grouting uniformity is guaranteed, grouting solidification is performed at the bottom, a foundation support is provided for tensile stress treatment of the anchor cable, the anchor cable is reduced in prestress shrinkage by installing the fixing base, and the tensile stress of the anchor cable to a building is improved.
2. Monitoring drilling straightness accuracy, prevent that drilling from crossing curved and attaching on the pore wall soil layer when making the anchor rope straighten, the center department at the hole with the anchor rope is kept to the righting frame, it leads to crooked and press close to the pore wall soil body to reduce because anchor rope self weight, crooked anchor rope reduces when tensile stress handles and leads to breaking away from the concrete piece because tensile stress is too big, tension monitoring is favorable to controlling anchor rope tensioning degree, prevent too big or undersize prestressing force reduction construction quality, the slip casting pipe is pulled out at the uniform velocity according to the slip casting speed and is favorable to guaranteeing the homogeneity of grout, grout through the interval, each section of assurance anchor rope all is in hole center department to the at utmost.
3. The tertiary support groove is favorable to adjusting the height and keeping the property placed in the middle of the anchor rope according to the anchor rope of different thicknesses, and the slope of righting the frame is favorable to reducing the resistance when taking out, and the installation that improves righting the frame simultaneously is firm, draws to hold the seat and is favorable to keeping the anchor rope between two parties of orifice department, plays the supporting role.
Drawings
FIG. 1 is a schematic structural view of a centralizing grouting device according to the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a schematic view of the operation of centralizing grouting according to the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3 at B;
fig. 5 is a full sectional view at the center plane of fig. 3.
Description of the reference numerals:
1. grouting pipe, 10, anchor cable, 2, righting frame, 21, support groove, 3, tension seat, 31 and roller.
Detailed Description
The present invention is described in further detail below with reference to figures 1-5.
Example 1:
the embodiment of the invention discloses a grouting construction method for an anchor cable of a deep foundation pit, which comprises the following construction steps:
the method comprises the following steps: drilling holes on the preset construction surface, and flattening and cleaning the surfaces of the drilled holes;
step two: after drilling holes, putting the anchor cable 10 into the holes, and inserting the grouting pipes 1;
step three: pouring concrete to the bottommost part in the hole, and waiting for the concrete to solidify;
step four: performing tensile stress treatment on the anchor cable 10, and then performing integral concrete pouring in the hole;
step five: and after the concrete in the hole is solidified, fixing the anchor cable 10 mounting and fixing seat at the orifice.
Example 2:
on the basis of example 1, the following are added:
monitoring the hole bending degree by using a laser detector in the process of drilling holes, and adjusting the drilling direction according to detection data.
And step two, when the anchor cable 10 is placed in the hole, the righting frame 2 is used for clamping the anchor cable 10 to be synchronously placed in the hole.
And step three, when concrete is poured into the bottommost part of the hole, bending the anchor cable 10 at the bottom of the hole.
And step four, when the tensile stress of the anchor cable 10 is processed, the anchor cable 10 is stretched by using a tensile machine, and the tensile stress is monitored by using a dynamometer.
And fourthly, when the concrete is integrally poured into the holes, pulling out the grouting pipes 1 at a constant speed according to the grouting speed.
And stopping pulling and grouting when the grouting pipe 1 is pulled out for 1-1.5m, and pulling out the grouting pipe 1 after the concrete is semi-solidified.
Example 3:
the centralizing frame 2 is arranged at the end part of the grouting pipe 1, the grouting pipe 1 is assembled in sections, and the centralizing frame 2 is provided with a third-level support groove 21.
The bottom end of the righting frame 2 is a plane, the other end of the righting frame is an inclined curved surface, one side of a supporting groove 21 of the righting frame 2 is provided with an opening, and an anchor cable 10 is placed on the opening.
The anchor cable 10 is provided with a pull-reaction seat 3 at the hole, and the pull-reaction seat 3 is provided with a roller 31.
The above are all preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (10)
1. A grouting construction method for an anchor cable of a deep foundation pit is characterized by comprising the following steps: the method comprises the following construction steps:
the method comprises the following steps: drilling holes on the preset construction surface, and flattening and cleaning the surfaces of the drilled holes;
step two: after drilling holes, putting the anchor cable (10) into the holes and inserting the grouting pipes (1);
step three: pouring concrete to the bottommost part in the hole, and waiting for the concrete to solidify;
step four: carrying out tensile stress treatment on the anchor cable (10), and then integrally pouring concrete into the hole;
step five: and after the concrete in the hole is solidified, fixing the anchor cable (10) mounting fixing seat at the hole opening.
2. The grouting construction method for the anchor cable of the deep foundation pit according to claim 1, wherein the grouting construction method comprises the following steps: monitoring the hole bending degree by using a laser detector in the process of drilling holes, and adjusting the drilling direction according to detection data.
3. The grouting construction method for the anchor cable of the deep foundation pit according to claim 1, wherein the grouting construction method comprises the following steps: and step two, clamping the anchor cable (10) by using the righting frame (2) when the anchor cable (10) is placed into the hole, and synchronously placing the anchor cable into the hole.
4. The grouting construction method for the anchor cable of the deep foundation pit according to claim 1, wherein the grouting construction method comprises the following steps: and step three, when concrete is poured to the bottommost part in the hole, bending the anchor cable (10) at the bottom of the hole.
5. The grouting construction method for the anchor cable of the deep foundation pit according to claim 1, wherein the grouting construction method comprises the following steps: and step four, when the anchor cable (10) is subjected to tensile stress treatment, the anchor cable (10) is stretched by using a tensile machine, and the tensile stress is monitored by using a dynamometer.
6. The grouting construction method for the anchor cable of the deep foundation pit according to claim 1, wherein the grouting construction method comprises the following steps: and fourthly, when the concrete is integrally poured into the holes, the grouting pipes (1) are pulled out at a constant speed according to the grouting speed.
7. The anchor cable grouting construction method for the deep foundation pit as claimed in claim 6, wherein: and stopping pulling and grouting when the grouting pipe (1) is pulled out for 1-1.5m, and pulling out the grouting pipe (1) after the concrete is semi-solidified.
8. The grouting construction method for the anchor cable of the deep foundation pit according to claim 1, wherein the grouting construction method comprises the following steps: the righting frame (2) is arranged at the end part of the grouting pipe (1), the grouting pipe (1) is assembled in sections, and the righting frame (2) is provided with a three-level supporting groove (21).
9. The anchor cable grouting construction method for the deep foundation pit as claimed in claim 8, wherein: the bottom end of the righting frame (2) is a plane, the other end of the righting frame is an inclined curved surface, one side of the bearing groove (21) of the righting frame (2) is provided with an opening, and an anchor cable (10) is placed on the opening.
10. The anchor cable grouting construction method for the deep foundation pit as claimed in claim 8, wherein: the anchor cable (10) is provided with a pull-reaction seat (3) at the position of the hole opening, and a roller (31) is arranged on the pull-reaction seat (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210548703.2A CN114908757A (en) | 2022-05-20 | 2022-05-20 | Grouting construction method for anchor cable of deep foundation pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210548703.2A CN114908757A (en) | 2022-05-20 | 2022-05-20 | Grouting construction method for anchor cable of deep foundation pit |
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| Publication Number | Publication Date |
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| CN114908757A true CN114908757A (en) | 2022-08-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210548703.2A Pending CN114908757A (en) | 2022-05-20 | 2022-05-20 | Grouting construction method for anchor cable of deep foundation pit |
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101284289B1 (en) * | 2013-03-26 | 2013-07-08 | 브사렐건설 주식회사 | The foundation for retaining wall blocks combined structure and the foundation used a block retaining reinforcement |
| CN205063979U (en) * | 2015-09-14 | 2016-03-02 | 金川 | Novel slip casting device |
| CN105804076A (en) * | 2016-03-26 | 2016-07-27 | 安徽同济建设集团有限责任公司 | Pre-stressed anchor cable and foundation pit supporting pre-stressed anchor cable construction method |
| CN205822202U (en) * | 2016-07-17 | 2016-12-21 | 北京市勘察设计研究院有限公司 | A kind of abnormal shape for steel strand anchor cable is to medium-height trestle |
| CN107387141A (en) * | 2017-09-12 | 2017-11-24 | 中国矿业大学 | A kind of self-drilling type difference slip casting assembled bolt and its anchoring process |
| CN209585033U (en) * | 2019-01-10 | 2019-11-05 | 中赟国际工程有限公司 | A kind of anchor cable end centering supporting structure |
| CN112030993A (en) * | 2020-08-20 | 2020-12-04 | 韶关市新城兴建筑工程有限公司 | Construction method for preventing hole collapse of anchor cable with enlarged head |
| CN112483149A (en) * | 2020-12-14 | 2021-03-12 | 兖州煤业股份有限公司 | Pressure expansion hole sealing capsule and corresponding high-pressure grouting anchor cable method |
| CN212772385U (en) * | 2020-07-13 | 2021-03-23 | 中电建十一局工程有限公司 | Railway deep foundation pit anchor rope supporting construction |
| CN214787469U (en) * | 2021-06-30 | 2021-11-19 | 中建一局集团第五建筑有限公司 | Anchor cable tray beneficial to recycling of grouting pipe |
| CN214883623U (en) * | 2021-04-12 | 2021-11-26 | 厦门鸿阳蓉工程科技有限公司 | Novel anchor cable bearing body |
| CN214940155U (en) * | 2021-07-21 | 2021-11-30 | 北京地矿工程建设有限责任公司 | Device for releasing anchor bars of underwater anchor rod |
| CN216238510U (en) * | 2021-09-10 | 2022-04-08 | 安徽水安建设集团股份有限公司 | Bag type centering bracket of anchor cable with enlarged head |
| CN216515567U (en) * | 2021-12-16 | 2022-05-13 | 辽宁有色基础工程有限公司 | Anchor-head-free prestressed anchor rod for reinforcing cultural relic protection dangerous rock mass |
-
2022
- 2022-05-20 CN CN202210548703.2A patent/CN114908757A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101284289B1 (en) * | 2013-03-26 | 2013-07-08 | 브사렐건설 주식회사 | The foundation for retaining wall blocks combined structure and the foundation used a block retaining reinforcement |
| CN205063979U (en) * | 2015-09-14 | 2016-03-02 | 金川 | Novel slip casting device |
| CN105804076A (en) * | 2016-03-26 | 2016-07-27 | 安徽同济建设集团有限责任公司 | Pre-stressed anchor cable and foundation pit supporting pre-stressed anchor cable construction method |
| CN205822202U (en) * | 2016-07-17 | 2016-12-21 | 北京市勘察设计研究院有限公司 | A kind of abnormal shape for steel strand anchor cable is to medium-height trestle |
| CN107387141A (en) * | 2017-09-12 | 2017-11-24 | 中国矿业大学 | A kind of self-drilling type difference slip casting assembled bolt and its anchoring process |
| CN209585033U (en) * | 2019-01-10 | 2019-11-05 | 中赟国际工程有限公司 | A kind of anchor cable end centering supporting structure |
| CN212772385U (en) * | 2020-07-13 | 2021-03-23 | 中电建十一局工程有限公司 | Railway deep foundation pit anchor rope supporting construction |
| CN112030993A (en) * | 2020-08-20 | 2020-12-04 | 韶关市新城兴建筑工程有限公司 | Construction method for preventing hole collapse of anchor cable with enlarged head |
| CN112483149A (en) * | 2020-12-14 | 2021-03-12 | 兖州煤业股份有限公司 | Pressure expansion hole sealing capsule and corresponding high-pressure grouting anchor cable method |
| CN214883623U (en) * | 2021-04-12 | 2021-11-26 | 厦门鸿阳蓉工程科技有限公司 | Novel anchor cable bearing body |
| CN214787469U (en) * | 2021-06-30 | 2021-11-19 | 中建一局集团第五建筑有限公司 | Anchor cable tray beneficial to recycling of grouting pipe |
| CN214940155U (en) * | 2021-07-21 | 2021-11-30 | 北京地矿工程建设有限责任公司 | Device for releasing anchor bars of underwater anchor rod |
| CN216238510U (en) * | 2021-09-10 | 2022-04-08 | 安徽水安建设集团股份有限公司 | Bag type centering bracket of anchor cable with enlarged head |
| CN216515567U (en) * | 2021-12-16 | 2022-05-13 | 辽宁有色基础工程有限公司 | Anchor-head-free prestressed anchor rod for reinforcing cultural relic protection dangerous rock mass |
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