CN115467345B - Assembled highway side slope anchor structure with stress monitoring function - Google Patents
Assembled highway side slope anchor structure with stress monitoring function Download PDFInfo
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- CN115467345B CN115467345B CN202211120725.5A CN202211120725A CN115467345B CN 115467345 B CN115467345 B CN 115467345B CN 202211120725 A CN202211120725 A CN 202211120725A CN 115467345 B CN115467345 B CN 115467345B
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 21
- 238000004873 anchoring Methods 0.000 claims abstract description 36
- 230000005540 biological transmission Effects 0.000 claims abstract description 28
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- 239000013307 optical fiber Substances 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 230000008859 change Effects 0.000 claims abstract description 5
- 230000001681 protective effect Effects 0.000 claims description 16
- 238000007569 slipcasting Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 239000010432 diamond Substances 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 description 10
- 239000002689 soil Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000004568 cement Substances 0.000 description 4
- 239000011083 cement mortar Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 244000025254 Cannabis sativa Species 0.000 description 3
- 239000004567 concrete Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000011374 ultra-high-performance concrete Substances 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000000428 dust Substances 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
- 230000036541 health Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 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
- 238000012360 testing method Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
Classifications
-
- 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
- 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
Landscapes
- 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 an assembled highway slope anchoring structure with a stress monitoring function. The anchor rod of the anchoring structure is poured and fixed in an anchor rod hole on a slope surface through grouting, a grating stress sensor is erected in the anchor rod hole, the grating stress sensor is connected to an anchor head through an optical fiber, a positioning pipe is installed on the end part 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 covered on the steel wire mesh and is fixed with the anchor rod through a turnbuckle sleeve, an anchor sealing cover plate is installed at the top of the prefabricated panel to encapsulate the anchoring structure, and wireless transmission equipment is arranged at the center of the anchor sealing cover plate and connected with the top end of the optical fiber. The anchor structure of the traditional anchor cable and the lock rod is unified into the assembled anchor head, so that the vegetation residue of the slope surface is reserved to the greatest extent when the anchor cable and the outer anchor head of the anchor rod are locked, the slope stability is improved, and the stress change in the anchor rod can be monitored in real time.
Description
Technical Field
The invention relates to the technical field of retaining walls, in particular to an assembled highway slope anchoring structure with a stress monitoring function.
Background
The anchoring technology is a common reinforcement means on the side slope of a highway, and the application of the anchoring technology is mainly divided into an anchor rod technology and an anchor rope technology, wherein one end of the anchor rod is connected with an external bearing member, the other end of the anchor rod is anchored in a stable stratum or a soil layer, and tension is transferred to the anchoring system of the stable stratum or the soil layer. The stress mechanism of the anchor rod is as follows: when the anchor rod body is acted by external force, the tensile force firstly transmits the force to the cement mortar body through the side friction resistance between the rod body reinforcing steel bars and the peripheral cement mortar body, and then transmits the force to the peripheral anchoring soil layer through the side friction resistance between the cement mortar body and the peripheral soil body; when steel strands or high-strength steel wire bundles are used as the rod body material, they are also called anchor cables.
The two protection processes are widely applied to the protection of highways and railway slopes due to the advantages of small disturbance to the slopes, high construction speed, simple operation and the like, but the phenomena of anchor rod failure, loose anchor head, damage of the bonding interface between the anchor head and the steel strand and the like occur in practical application, and the safety of anchoring engineering is threatened, so that a novel anchoring structure with strong durability, low economic cost and capability of monitoring the stress in real time is needed to be provided.
Disclosure of Invention
In order to solve the problems of the existing anchoring structures, the invention provides an assembled highway slope anchoring structure with a stress monitoring function, the anchoring structures of a traditional anchor rope and a lock rod are unified into an assembled anchor head, the anchor head locking of an outer anchor rod is enhanced, meanwhile, vegetation residues on a slope surface are reserved to the greatest extent, the slope stability is improved by utilizing the grass root system effect, an optical fiber grating sensor is additionally arranged in the anchoring structure for diseases such as anchor rod failure, anchor head loosening and the like, the stress change in 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 landslide accidents are reduced.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
An assembled highway side slope anchoring structure with stress monitoring function, anchor 4 of anchoring structure pours through slip casting body 15 and is fixed in the stock downthehole on the side slope 8, its characterized in that: the optical grating stress sensor 11 is erected in the anchor rod hole, the optical grating stress sensor 11 is connected to an anchor head through an optical fiber 10, a positioning tube 5 is installed on the end portion of the anchor rod, a panel back cushion layer 3 is fixed to the positioning tube 5, a steel wire net 2 is laid on the panel back cushion layer 3, a prefabricated panel 1 is covered on the steel wire net 2 and is fixed to the anchor rod 4 through a turnbuckle sleeve 13, an anchor sealing cover plate 7 is installed at the top of the prefabricated panel 1 to encapsulate an anchor structure, a wireless transmission device 9 is arranged at the center of the anchor sealing cover plate and is connected with the top end of the optical fiber 10, and the prefabricated panel 1 adopts a cross structure.
The prefabricated panel 1 may have a regular diamond or square structure.
The grouting pipe 6 is arranged on the back cushion layer 3 of the panel, and grouting is carried out in the back cushion layer 3 of the panel through the grouting pipe 6.
The prefabricated panel 1 is provided with an annular locating hoop 14 for connecting the prefabricated panel 1 and the protective shell 12.
The wireless transmission device 9 is embedded with an IC transmission device and a data conversion module, and can transmit the internal stress change of the anchor rod through two modes of a scanning device and a cloud server.
An annular positioning hoop 14 and a protective shell 12 are arranged at the top of the wireless transmission device 9, and a micro solar panel 17 is fixed at the top of the protective shell 12 and supplies power to the wireless transmission device through a photovoltaic direct current wire 16.
The beneficial effects of the invention are as follows: 1) The prefabricated panel is formed by prefabricated casting of ultra-high performance concrete, a hole is reserved in the center of the prefabricated panel and used for fixing the position of an anchor rod or an 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 intelligent monitoring system has a real-time stress monitoring function, a dedicated IC tag is set up according to each anchor rod, a measurer can read tag information and stress data of each anchor rod in a non-contact manner outside the protective shell by using scanning equipment, if the anchor rod stress is below a set threshold value, the scanning equipment can send out an early warning signal, and all anchor rod data can be synchronously uploaded to a cloud server through the monitoring equipment, so that the data can be conveniently tidied and saved. The stress monitoring equipment has the advantages of simple structure, protection of the protective shell at the top, difficult damage, convenient maintenance, only need to detach the protective shell to replace the transmission equipment, and a miniature solar panel at the top of the protective shell to maintain the power supply of the transmission system, and lower maintenance and management cost.
2) The cross anchoring structure of the invention can reserve vegetation on the slope surface to the maximum extent, and slope excavation is only required to be carried out at the position where the anchor rod needs to be set up, so that the slope soil stability is improved while the slope grass root system is improved, and green construction and environment-friendly construction are realized. When pouring the back cushion layer of the panel, cement grouting is carried out through the grouting pipe, so that damage to peripheral vegetation is reduced, and the construction process without on-site mixing materials is more capable of avoiding dust pollution.
3) The assembled highway slope anchoring structure has the advantages that the construction steps are efficient, the structure is simple, two reinforcing technologies of the anchor rod and the anchor cable can be selected according to specific requirements of the protection engineering design, three structures including a cross structure, a regular diamond shape and a square structure can be selected from the aspect of protection effect, the application range is greatly increased, and the prefabricated panel is prefabricated and poured in advance, so that a large amount of construction period can be saved in the construction process, and the engineering protection cost is reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the invention mounted on a side slope;
FIG. 3 is a schematic diagram of a monitoring structure according to the present invention;
FIG. 4 is a flow chart of the monitoring system of the present invention;
FIG. 5 is a cross-shaped anchor block diagram of the present invention;
FIG. 6 is a diagram of a orthorhombic anchor structure of the present invention;
FIG. 7 is a square anchor block diagram of the present invention;
FIG. 8 is a schematic view of a panel mat according to the present invention;
The figure shows: prefabricated panel 1, wire net 2, panel back bed course 3, stock 4, registration tube 5, slip casting pipe 6, seal anchor apron 7, slope 8, wireless transmission equipment 9, optic fibre 10, grating stress sensor 11, protective housing 12, turnbuckle sleeve 13, annular location hoop 14, slip casting body 15, photovoltaic direct current line 16 and miniature solar panel 17.
Detailed Description
The technical scheme of the invention is further described below by specific embodiments with reference to 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 composition of the anchoring structure comprises: prefabricated panel 1, wire net 2, panel back bed course 3, stock 4, registration tube 5, slip casting pipe 6, anchor apron 7, wireless transmission equipment 9, optic fibre 10, grating stress sensor 11, protective housing 12, turnbuckle sleeve 13, annular location hoop 14, slip casting body 15, photovoltaic direct current line 16 and miniature solar panel 17.
The prefabricated panel 1 is manufactured in a cast-in-situ mode in a factory according to the drawing size, the prefabricated panel 1 is poured by adopting ultra-high performance concrete according to different slope protection requirements, and meanwhile, the prefabricated panel 1 is manufactured in a corresponding steel wire mesh 2 in size to form the upper half part of the whole anchoring structure.
For the back cushion layer 3 of the panel, felt is selected as a filling material in the cushion layer, and the outer side is sewn by geotextile, so that the position of the grouting pipe 6 is reserved.
The anchoring structure is installed as shown in fig. 2, after the anchor rod 4 is drilled into the hole after the anchor rod hole is formed in the slope surface 8, the grating stress sensor 11 is fixed at the center of the anchor rod and connected in series by the optical fiber 10, an optical cable with a certain length is reserved for subsequent connection monitoring equipment, and meanwhile, the positioning tube 5 is erected at the top of the anchor rod hole for guaranteeing the stability of the anchoring structure.
When the back cushion layer 3 of the panel is installed on site, all grouting pipes 6 are arranged in the same direction on the upper side of the anchoring structure, grouting pipes are uniformly formed in the back cushion layer 3 of the panel through a cement truck, stronger shear strength can be provided after the inner felt of the back cushion layer 3 of the panel is fused with cement mortar, the effect is mainly to ensure that the prefabricated panel 1 is fully attached to the slope surface 8, and the prefabricated panel 1 cannot be shifted in advance before anchoring.
During site construction, the steel wire mesh 2 is laid on the back cushion layer 3 of the panel in the middle, and the precast panel 1 is erected after the cushion layer is fixed by the turnbuckle sleeve 10. After the maintenance of the grouting body 15 is completed, installing an anchor sealing cover plate 7 at the center of the prefabricated panel 1 of the anchoring structure, setting a wireless transmission device 9 at the center of the cover plate, connecting the wireless transmission device 9 with a grating stress sensor 11 through an optical fiber 10, achieving the purpose of monitoring the stress of an anchor rod in real time, finally installing an annular positioning hoop 14 at the periphery of the grating stress sensor, installing a miniature solar panel 17 at the top of a protective shell 12, reserving a hole at the center to penetrate a photovoltaic direct current wire 16, connecting the photovoltaic direct current wire 16 to the wireless transmission device 9, and screwing the protective shell 12 after the whole transmission system and power supply equipment are debugged.
The concrete construction steps comprise:
1. According to the prefabricated panel 1, the steel wire mesh 2, the panel back cushion layer 3 and the positioning tube 5 which are produced in a factory according to the design drawing, different prefabricated panel types and supporting structural facilities are selected according to different protection requirements, subsequent field construction is facilitated, corresponding wireless transmission equipment 9, grating stress sensors 11 and optical fibers 10 are prepared, and photovoltaic direct-current lines 16 and miniature solar panels 17 with corresponding sizes are purchased.
2. According to the slope protection design drawing, anchor rod holes are uniformly formed in the slope surface 8 at intervals along the horizontal direction, grating stress sensors 11 are installed on the inner wall of each anchor rod, when a plurality of stress sensors are required to be installed, the stress sensors are connected with each other through optical fibers 11, enough optical fiber length is reserved for connection with wireless transmission equipment, anchor rods 4 are placed in the anchor rod holes after all the grating stress sensors are installed, grouting is conducted, the end portions of each anchor rod are exposed out of the slope surface by 200-300mm, and the distance between every two adjacent anchor rod holes is required to be matched with the size of a prefabricated panel.
3. And installing a positioning pipe 5 at the top of the reserved anchor rod hole so as to be convenient for installing and fixing the position of the assembled anchoring structure, and after installing the prefabricated panel back cushion layer 3 on the positioning pipe 5, laying the steel wire mesh 2 on the cushion layer in the middle. The grouting pipe 6 of the back cushion layer is reserved to the same direction on the upper side of the structure so as to facilitate the subsequent cement grouting of the cushion layer.
4. The steel wire net is covered with the prefabricated panel 1, so that the upper and lower positions of the cushion layer and the panel are consistent, and the position of the subsequent anchoring structure is ensured not to deviate.
5. Cement grouting is carried out by using a concrete truck through the side grouting pipe 6 of the cushion layer, the change of geotechnical cloth outside the cushion layer is observed at any time in the grouting process, and the slurry at the lower part of the cushion layer is ensured to be completely attached to the slope topography.
6. And after the strength of the grouting body 9 reaches a design value, cutting redundant parts of the end head of the anchor rod, pouring the anchor sealing concrete and preserving the health.
7. The wireless transmission equipment 9 is installed at the center of the anchor sealing cover plate, is connected with optical fibers led out from the inside of the anchor rod, is connected with a power supply system, is set with stress treatment and early warning threshold values of the anchor rod, is used for testing an IC transmission and data conversion module of the wireless transmission equipment, and is used for installing the rear annular positioning hoop 14 at the upper part of the wireless transmission equipment after the debugging scanning equipment and the cloud server receiving and storage module are operated normally. The miniature solar panel 17 is arranged on the top of the protective shell 12 in advance, a hole is reserved in the center to penetrate through the photovoltaic direct current wire 16 to be connected to the wireless transmission equipment 9, and the protective shell 12 is screwed after the power supply of the transmission equipment is tested to be normal.
Example two
As shown in fig. 4 and 5, the invention provides a highway slope assembled anchoring structure with a monitoring function, compared with the cross-shaped anchoring structure adopted in the first embodiment, the embodiment adopts a square diamond structure or a square prefabricated panel 1, four fan blades are additionally arranged on the basis of the original cross-shaped anchoring structure, the slope can be protected to a slope surface in a larger area, the highway slope assembled anchoring structure is suitable for a highway slope with loose slope surface soil bodies and without a plurality of grass plants, and the outwardly-expanded fan blades can provide a better soil 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 characteristics 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 disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (4)
1. Assembled highway side slope anchor structure with stress monitoring function, anchor structure's stock is pour through slip casting body and is fixed in the stock hole on the side slope, its characterized in that: the method comprises the steps that a grating stress sensor is erected in an anchor rod hole, the grating stress sensor is connected to an anchor head through an optical fiber, a positioning pipe is installed on the end portion of the anchor rod, a panel back cushion layer is fixed to the positioning pipe, a steel wire mesh is laid on the panel back cushion layer, a prefabricated panel is covered on the steel wire mesh and is fixed to the anchor rod through a turnbuckle sleeve, an anchor sealing cover plate is installed at the top of the prefabricated panel to encapsulate an anchoring structure, wireless transmission equipment is arranged in the center of the anchor sealing cover plate and is connected with the top end of the optical fiber, and the prefabricated panel adopts a cross structure;
the prefabricated panel is provided with an annular positioning hoop for connecting the prefabricated panel and the protective shell;
the wireless transmission equipment top installation annular location hoop and protective housing, the fixed miniature solar panel in protective housing top is and is the wireless transmission equipment power supply through light Fu Zhi streamline.
2. The fabricated highway side slope anchoring structure with stress monitoring function according to claim 1, wherein: the cross-shaped structure of the prefabricated panel is replaced by a regular diamond or square structure.
3. The fabricated highway side slope anchoring structure with stress monitoring function according to claim 1, wherein: and a grouting pipe is arranged on the back cushion layer of the panel, and grouting is performed in the back cushion layer of the panel through the grouting pipe.
4. The fabricated highway side slope anchoring structure with stress monitoring function according to claim 1, wherein: and the wireless transmission equipment is internally embedded with an IC transmission equipment and a data conversion module, and the internal stress change of the anchor rod is transmitted through two modes of a scanning equipment and a cloud server.
Priority Applications (1)
| 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 |
|---|---|---|---|
| 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 CN115467345A (en) | 2022-12-13 |
| CN115467345B true CN115467345B (en) | 2024-06-25 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116220100A (en) * | 2023-02-08 | 2023-06-06 | 西南交通大学 | Prefabricated assembled friction anchor plate composite retaining wall structure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (5)
| 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 |
| CN110924388B (en) * | 2019-12-10 | 2021-06-29 | 华北水利水电大学 | Multistage stress and displacement control extensible anchor rod with 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 |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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