CN115467345A - Novel assembled highway side slope anchor structure with stress monitoring function - Google Patents
Novel assembled highway side slope anchor structure with stress monitoring function Download PDFInfo
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- CN115467345A CN115467345A CN202211120725.5A CN202211120725A CN115467345A CN 115467345 A CN115467345 A CN 115467345A CN 202211120725 A CN202211120725 A CN 202211120725A CN 115467345 A CN115467345 A CN 115467345A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 25
- 238000004873 anchoring Methods 0.000 claims abstract description 29
- 230000005540 biological transmission Effects 0.000 claims abstract description 27
- 238000007569 slipcasting Methods 0.000 claims abstract description 16
- 239000013307 optical fiber Substances 0.000 claims abstract description 6
- 230000001681 protective effect Effects 0.000 claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 5
- 239000010432 diamond Substances 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000000835 fiber Substances 0.000 abstract description 9
- 238000009434 installation Methods 0.000 abstract description 5
- 238000005728 strengthening Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 7
- 239000002689 soil Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 239000004568 cement Substances 0.000 description 4
- 239000011083 cement mortar Substances 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 244000025254 Cannabis sativa Species 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000004567 concrete Substances 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910003460 diamond Inorganic materials 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000011374 ultra-high-performance concrete Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000004746 geotextile Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
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Classifications
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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
- E02D33/00—Testing foundations or foundation structures
-
- 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
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/23—Dune restoration or creation; Cliff stabilisation
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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)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
- Piles And Underground Anchors (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The invention relates to the technical field of retaining walls, in particular to a novel assembly type highway side slope anchoring structure with a stress monitoring function. The stock of anchor structure pours through the slip casting and is fixed in the stock hole on the slope surface of side slope, erect grating stress sensor in the stock hole, pass through optical fiber connection to anchor head with grating stress sensor, install the registration arm on the stock tip, be fixed with panel back bed course with the registration arm, laid the wire net on the panel back bed course, it is fixed with the stock to add prefabricated panel and pass through the turnbuckle sleeve on the wire net, seal anchor apron at prefabricated panel top installation and encapsulate anchor structure, establish wireless transmission equipment and be connected with the optic fibre top at anchor apron center. The anchor structure with traditional anchor rope and locking lever unifies to assembled anchor head, when strengthening the outer anchor head locking of anchor rope, stock, the maximize remains slope table vegetation and remains, improves side slope stability to can the inside stress variation of real-time supervision stock.
Description
Technical Field
The invention relates to the technical field of retaining walls, in particular to a novel assembled highway side slope anchoring structure with a stress monitoring function.
Background
The anchoring technology is a commonly used reinforcing means on the highway side slope, the application of the anchoring system mainly comprises an anchor rod process and an anchor cable process, one end of the anchor rod is connected with an external bearing component, the other end of the anchor rod is anchored in a stable rock stratum or a soil layer, and the anchor rod transmits the tension to the stable rock stratum or the soil layer and mainly comprises a rod body, a grouting body, an anchor device, a sleeve and a connector. The force mechanism of the anchor rod is as follows: when the anchor rod body is acted by external force, the pulling force is firstly transmitted to the cement mortar body through the side frictional resistance between the rod body steel bar and the peripheral cement mortar body, and then the force is transmitted to the peripheral anchoring soil layer through the side frictional resistance between the cement mortar body and the peripheral soil body; when steel strands or high-strength steel wire bundles are used as the material of the rod body, the steel strands or the high-strength steel wire bundles are also called anchor cables.
The two protection processes are widely applied to highway and railway slope protection due to the advantages of small slope disturbance, high construction speed, simplicity and convenience in operation and the like, but phenomena of anchor rod failure, anchor head loosening, anchor head and steel strand bonding interface damage and the like occur in practical application, so that the safety of anchoring engineering is threatened, and therefore a novel anchoring structure which is strong in durability, low in economic cost and capable of monitoring stress in real time is urgently needed.
Disclosure of Invention
In order to solve the problems of the existing anchoring structure, the invention provides a novel assembly type highway slope anchoring structure with a stress monitoring function, the anchoring structure of a traditional anchor cable and a lock rod is unified into an assembly type anchor head, the locking of the anchor head outside an anchor rod is strengthened, the vegetation residue on a slope surface is reserved to the maximum extent, the slope stability is improved by utilizing the action of a grass planting root system, a fiber grating sensor is additionally arranged in the anchoring structure aiming at the defects of anchor rod failure, anchor head loosening and the like, the internal stress change of the anchor rod is monitored in real time, the anchor rod is synchronized to a server through wireless transmission equipment, the effect of timely observing and early warning is achieved, and the occurrence of landslide accidents is reduced.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a novel assembled highway side slope anchor structure with stress monitoring function, anchor rod 4 of anchor structure pours through grout body 15 and is fixed in the stock on the slope surface 8 downthehole, its characterized in that: erect grating stress sensor 11 in the anchor rod hole, be connected to the anchor head with grating stress sensor 11 through optic fibre 10, install registration arm 5 on the stock tip to registration arm 5 is fixed with panel back bed course 3, laid wire net 2 on the panel back bed course 3, add on wire net 2 and add prefabricated panel 1 and fixed with stock 4 through turnbuckle sleeve 13, install anchor cover 7 at prefabricated panel 1 top and encapsulate the anchor structure, establish wireless transmission equipment 9 and be connected with optic fibre 10 top at anchor cover center, prefabricated panel 1 adopts cruciform structure.
The prefabricated panel 1 can adopt a regular diamond or square structure.
And the panel back cushion layer 3 is provided with a grouting pipe 6, and grouting is performed into the panel back cushion layer 3 through the grouting pipe 6.
An annular positioning hoop 14 for connecting the prefabricated panel 1 and the protective shell 12 is arranged on the prefabricated panel 1.
The wireless transmission device 9 is internally embedded with an IC transmission device and a data conversion module, and can transmit the internal stress change of the anchor rod in two modes of a scanning device and a cloud server.
The top of the wireless transmission device 9 is provided with an annular positioning hoop 14 and a protective shell 12, and the top of the protective shell 12 is fixed with a miniature solar panel 17 and supplies power to the wireless transmission device through a photovoltaic direct current line 16.
The invention has the beneficial effects that: 1) The prefabricated panel is formed by prefabricating and pouring ultrahigh-performance concrete, the center of the prefabricated panel is provided with the hole for fixing the position of the anchor rod or the anchor cable, the gravity of the prefabricated panel is greatly reduced compared with that of a common prefabricated structure, the purpose of light weight protection is achieved, and the prefabricated panel is convenient to transport and hoist.
2) The anchor rod stress monitoring system has a real-time stress monitoring function, a dedicated IC tag is set according to each anchor rod, a measurer can read tag information and stress data of each anchor rod in a non-contact mode outside the protective shell by using scanning equipment, if the stress of each anchor rod is below a set threshold value, the scanning equipment can send out an early warning signal, all anchor rod data can be synchronously uploaded to a cloud server in the transmission process of the monitoring equipment, and data sorting and storage are facilitated. The stress monitoring equipment is simple in structure, the protective shell is arranged at the top of the stress monitoring equipment, the stress monitoring equipment is not easy to damage and convenient to maintain, the transmission equipment is replaced only by detaching the protective shell, the miniature solar panel is arranged at the top of the protective shell, the power supply of a transmission system is maintained, and the maintenance and management cost is low.
2) The cross anchoring structure furthest retains the vegetation on the side slope surface, slope surface excavation is only carried out at the position where the anchor rod needs to be arranged, the stability of the side slope is improved, the slope body grass root system can also improve the stability of the side slope soil body, and green construction and environment-friendly construction are realized. When pouring the back bed course of the counter plate, carry out the cement slip casting through the slip casting pipe, reduced the destruction to peripheral vegetation, this kind of construction process that does not need on-the-spot mix has avoided the raise dust pollution more.
3) The fabricated highway slope anchoring structure has high construction steps and simple structure, can select two reinforcement processes of the anchor rod and the anchor cable according to the specific design requirements of protection engineering, has three structures of a cross shape, a regular diamond shape and a square shape from the aspect of protection effect, can be selected, can be widely applied, and can save a large number of construction periods and reduce the engineering protection cost because the prefabricated panel is prefabricated and poured in advance.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the present invention installed on a slope structure;
FIG. 3 is a schematic view of a monitoring structure according to the present invention;
FIG. 4 is a flow chart of the monitoring system operation of the present invention;
FIG. 5 is a cross-anchor block diagram of the present invention;
FIG. 6 is a view of a positive diamond anchor configuration of the present invention;
FIG. 7 is a view of a square anchor configuration of the present invention;
FIG. 8 is a schematic view of a panel mat according to the present invention;
shown in the figure: prefabricated panel 1, wire net 2, panel back bed course 3, stock 4, registration arm 5, slip casting pipe 6, anchor cover 7, slope surface 8, wireless transmission equipment 9, optic fibre 10, grating stress transducer 11, protective housing 12, turnbuckle sleeve 13, annular location hoop 14, slip casting 15, photovoltaic straight streamline 16 and miniature solar panel 17.
Detailed Description
The technical scheme of the invention is further explained by specific embodiments in the following with the accompanying drawings:
example 1
As shown in fig. 1 to 5, the present invention provides an assembled highway slope anchoring structure with stress monitoring function, the anchoring structure comprises: prefabricated panel 1, wire net 2, panel back bed course 3, stock 4, registration arm 5, slip casting pipe 6, anchor cover 7, wireless transmission equipment 9, optic fibre 10, grating stress sensor 11, protective housing 12, turnbuckle sleeve 13, annular location hoop 14, slip casting 15, photovoltaic straight streamline 16 and miniature solar panel 17.
The prefabricated panel 1 is manufactured in a cast-in-place mode in a factory according to drawing sizes, the prefabricated panel 1 is poured by adopting ultra-high performance concrete according to different slope protection requirements, and meanwhile the corresponding steel wire mesh 2 manufactured according to the size of the prefabricated panel 1 forms the upper half part of the whole anchoring structure.
And aiming at the back cushion layer 3 of the panel, selecting a felt as a filling material in the cushion layer, and sewing the outer side of the cushion layer by using geotextile to reserve the position of the grouting pipe 6.
The anchoring structure is installed as shown in fig. 2, after the anchor rod 4 is driven into the hole after the anchor rod hole is formed in the slope surface 8 of the side slope, the grating stress sensor 11 is fixed at the center of the anchor rod and is connected in series through the optical fiber 10, the optical cable with a certain length is reserved for subsequent connection of monitoring equipment, and meanwhile, the positioning pipe 5 is erected at the top of the anchor rod hole for ensuring the stability of the anchoring structure.
Panel back bed course 3 is when the on-the-spot installation for all slip casting pipes 6 should all be settled in the same direction of anchor structure upside, unified follow slip casting pipe slip casting through the cement truck, form the slip casting body in panel back bed course 3, can provide stronger shear strength after 3 inside felts of panel back bed course and cement mortar fuse, and the effect is mainly to guarantee that prefabricated panel 1 and slope 8 are fully laminated, and prefabricated panel 1 can not shift in advance before the anchor.
During site operation, lay wire net 2 between two parties on the panel back bed course 3 to erect prefabricated panel 1 after screw buckle sleeve 10 is fixed the bed course position. After the maintenance of the grouting body 15 is finished, an anchor sealing cover plate 7 is installed at the center of the anchor structure prefabricated panel 1, a wireless transmission device 9 is arranged in the middle of the center of the cover plate and connected with a grating stress sensor 11 through an optical fiber 10, the purpose of monitoring the stress of the anchor rod in real time is achieved, finally, an annular positioning hoop 14 is installed on the periphery of the grating stress sensor, a micro solar panel 17 is installed at the top of a protective shell 12, a hole is reserved in the center and penetrates a photovoltaic direct current line 16 to be connected to the wireless transmission device 9, and the protective shell 12 is screwed after the whole transmission system and power supply device are debugged.
The concrete construction steps comprise:
1. according to design drawing batch production prefabricated panel 1, wire net 2, panel back bed course 3 and registration arm 5, choose different prefabricated panel types and supporting structure facility according to the protection needs of difference, make things convenient for follow-up site operation to and prepare corresponding wireless transmission equipment 9, grating stress sensor 11 and optic fibre 10, and purchase photovoltaic straight flow line 16 and the miniature solar panel 17 of corresponding size.
2. According to the design drawing of slope protection along the horizontal direction evenly set up the anchor rod hole at the slope surface 8 of side slope at the interval, at the installation grating stress sensor 11 of stock inner wall, when needs install a plurality of stress sensor, it connects with optic fibre 11 each other, should pay attention to reserve sufficient optic fibre length so that be connected with wireless transmission equipment, put into stock 4 and carry out the slip casting in the anchor rod hole after all grating stress sensor installation are ready, every stock tip exposes side slope table 200-300mm, should pay attention to the distance between the adjacent anchor rod hole and should suit with the prefabricated panel size.
3. And installing a positioning pipe 5 at the top of the reserved anchor rod hole so as to be convenient for installation and fixing the position of the assembly type anchoring structure, installing a prefabricated panel back cushion layer 3 on the positioning pipe 5, and laying a steel wire mesh 2 on the cushion layer in the middle. The grouting pipes 6 of the back cushion layer are reserved to the same direction of the upper side of the structure, so that cement grouting is performed on the cushion layer subsequently.
4. The prefabricated panel 1 is added on the steel wire net, so that the upper position and the lower position of the cushion layer and the panel are consistent, and the position of a subsequent anchoring structure is prevented from generating deviation.
5. The application concrete truck carries out the cement slip casting through bed course lateral part slip casting pipe 6, and the change of the outside geotechnological cloth of bed course should be observed at any time at the slip casting in-process, guarantees that bed course lower part slurry should laminate with domatic topography completely.
6. And after the strength of the grouting body 9 reaches a design value, cutting the redundant part of the end head of the anchor rod, pouring anchor sealing concrete and preserving.
7. The wireless transmission device 9 is installed at the center of the anchor sealing cover plate, is connected with the optical fiber led out from the inside of the anchor rod and is connected with a power supply system, the stress disposal and early warning threshold value of the anchor rod is set, the IC transmission and data conversion module of the wireless transmission device is tested, and the annular positioning hoop 14 is installed on the upper portion of the debugging scanning device and the cloud server receiving and storing module after normal operation. The miniature solar panel 17 is installed on the top of the protective shell 12 in advance, a hole is reserved in the center, a photovoltaic direct current line 16 penetrates through the hole and is connected to the wireless transmission device 9, and the protective shell 12 is screwed down after the power supply of the transmission device is tested to be normal.
Example two
As shown in fig. 4 and 5, the invention provides a novel highway side slope assembled anchoring structure with a monitoring function, compared with a cross-shaped anchoring structure adopted in the embodiment, the embodiment adopts a regular diamond-shaped or square prefabricated panel 1, four fan blades are additionally arranged on the basis of an original cross-shaped anchor, the side slope surface can be protected to a larger area, the novel highway side slope assembled anchoring structure is suitable for a highway side slope with loose slope surface soil body and without a plurality of grass plants, and the expanded fan blades can provide a better soil body stabilizing effect.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. The utility model provides a novel assembled highway side slope anchor structure with stress monitoring function, anchor structure's stock is pour through the slip casting and is fixed in the stock on the slope surface downthehole, its characterized in that: the grating stress sensor is erected in the anchor rod hole, the grating stress sensor is connected to the anchor head through optical fibers, the positioning pipe is installed on the end portion of the anchor rod, a panel back cushion layer is fixed on the positioning pipe, a steel wire mesh is laid on the panel back cushion layer, a prefabricated panel is added on the steel wire mesh in a covering mode and fixed with the anchor rod through a screw buckle sleeve, an anchor sealing cover plate is installed at the top of the prefabricated panel to package an anchoring structure, wireless transmission equipment is arranged at the center of the anchor sealing cover plate and connected with the top end of the optical fibers, and the prefabricated panel is of a cross structure.
2. The novel assembly type highway slope anchoring structure with stress monitoring function according to claim 1, wherein: the cross-shaped structure of the prefabricated panel can be replaced by a regular diamond or square structure.
3. The novel assembled type highway slope anchoring structure with stress monitoring function according to claim 1, wherein: and the back cushion layer of the panel is provided with a grouting pipe, and grouting is performed into the back cushion layer of the panel through the grouting pipe.
4. The novel assembly type highway slope anchoring structure with stress monitoring function according to claim 1, wherein: the prefabricated panel is provided with an annular positioning hoop for connecting the prefabricated panel and the protective shell.
5. The novel assembled type highway slope anchoring structure with stress monitoring function according to claim 1, wherein: the wireless transmission device is internally embedded with an IC transmission device and a data conversion module, and changes of internal stress of the anchor rod are transmitted in two modes of a scanning device and a cloud server.
6. The novel assembled type highway slope anchoring structure with stress monitoring function according to claim 1, wherein: annular location hoop and protective housing are installed at wireless transmission equipment top, the fixed miniature solar panel in protective housing top and supply power for wireless transmission equipment through photovoltaic direct current line.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211120725.5A CN115467345B (en) | 2022-09-15 | 2022-09-15 | Assembled highway side slope anchor structure with stress monitoring function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211120725.5A CN115467345B (en) | 2022-09-15 | 2022-09-15 | Assembled highway side slope anchor structure with stress monitoring function |
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| CN115467345A true CN115467345A (en) | 2022-12-13 |
| CN115467345B CN115467345B (en) | 2024-06-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116220100A (en) * | 2023-02-08 | 2023-06-06 | 西南交通大学 | Prefabricated assembled friction anchor plate composite retaining wall structure |
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|---|---|---|---|---|
| JP2002221457A (en) * | 2001-01-26 | 2002-08-09 | Toa Grout Kogyo Co Ltd | Method and device for measuring axial force of anchor material which uses optical fiber sensor |
| CN102720515A (en) * | 2012-06-29 | 2012-10-10 | 山东大学 | Fiber bragg grating prestress measurement anchor rod and application method thereof |
| CN206635826U (en) * | 2017-03-22 | 2017-11-14 | 三峡大学 | A kind of side slope ess-strain monitoring device based on fibre optical sensor |
| CN110924388A (en) * | 2019-12-10 | 2020-03-27 | 华北水利水电大学 | Multistage stress and displacement control extensible anchor rod and stress displacement monitoring device |
| CN113309093A (en) * | 2021-06-22 | 2021-08-27 | 辽宁工程技术大学 | Vibration induction thermal expansion anchoring force micro-adjustment anchor rod structure and application method |
| CN216157693U (en) * | 2021-08-23 | 2022-04-01 | 固远晨通科技发展有限公司 | Hollow grouting intelligent anchor rod |
| CN218667578U (en) * | 2022-09-15 | 2023-03-21 | 甘肃省交通规划勘察设计院股份有限公司 | Novel assembled highway side slope anchor structure with stress monitoring function |
-
2022
- 2022-09-15 CN CN202211120725.5A patent/CN115467345B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002221457A (en) * | 2001-01-26 | 2002-08-09 | Toa Grout Kogyo Co Ltd | Method and device for measuring axial force of anchor material which uses optical fiber sensor |
| CN102720515A (en) * | 2012-06-29 | 2012-10-10 | 山东大学 | Fiber bragg grating prestress measurement anchor rod and application method thereof |
| CN206635826U (en) * | 2017-03-22 | 2017-11-14 | 三峡大学 | A kind of side slope ess-strain monitoring device based on fibre optical sensor |
| CN110924388A (en) * | 2019-12-10 | 2020-03-27 | 华北水利水电大学 | Multistage stress and displacement control extensible anchor rod and stress displacement monitoring device |
| CN113309093A (en) * | 2021-06-22 | 2021-08-27 | 辽宁工程技术大学 | Vibration induction thermal expansion anchoring force micro-adjustment anchor rod structure and application method |
| CN216157693U (en) * | 2021-08-23 | 2022-04-01 | 固远晨通科技发展有限公司 | Hollow grouting intelligent anchor rod |
| CN218667578U (en) * | 2022-09-15 | 2023-03-21 | 甘肃省交通规划勘察设计院股份有限公司 | Novel assembled highway side slope anchor structure with stress monitoring function |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116220100A (en) * | 2023-02-08 | 2023-06-06 | 西南交通大学 | Prefabricated assembled friction anchor plate composite retaining wall structure |
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| CN115467345B (en) | 2024-06-25 |
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