CN103469782A - Fiber bragg grating compound dacron geogrid and preparation method thereof - Google Patents
Fiber bragg grating compound dacron geogrid and preparation method thereof Download PDFInfo
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- CN103469782A CN103469782A CN2013104341871A CN201310434187A CN103469782A CN 103469782 A CN103469782 A CN 103469782A CN 2013104341871 A CN2013104341871 A CN 2013104341871A CN 201310434187 A CN201310434187 A CN 201310434187A CN 103469782 A CN103469782 A CN 103469782A
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- 239000000835 fiber Substances 0.000 title claims abstract description 60
- 150000001875 compounds Chemical class 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 229920004934 Dacron® Polymers 0.000 title claims abstract description 14
- 239000011248 coating agent Substances 0.000 claims abstract description 29
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- 238000009940 knitting Methods 0.000 claims abstract description 21
- 229920000642 polymer Polymers 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 18
- 238000009941 weaving Methods 0.000 claims abstract description 8
- 229920004933 Terylene® Polymers 0.000 claims description 50
- 239000002131 composite material Substances 0.000 claims description 50
- 239000013307 optical fiber Substances 0.000 claims description 14
- 238000005728 strengthening Methods 0.000 claims description 14
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- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 7
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- 240000007594 Oryza sativa Species 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 241000209094 Oryza Species 0.000 description 4
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- 230000007774 longterm Effects 0.000 description 3
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Abstract
The invention relates to a fiber bragg grating compound dacron geogrid and a preparation method thereof. The fiber bragg grating compound dacron geogrid is characterized by comprising a fiber bragg grating, compound enhanced marking yarns, warp yarns, weft yarns, binding knitting yarns and a polymer coating. During a grey fabric weaving process, the fiber bragg grating, the compound enhanced marking yarns, the warp yarns and the weft yarns are formed into an interlayer-stable compound structure, and then the polymer coating is used for treating the compound structure, so that the fiber bragg grating compound dacron geogrid is prepared. The fiber bragg grating compound dacron geogrid and the preparation method thereof disclosed by the invention have the beneficial effects that the structure and function compound of the fiber bragg grating and the dacron geogrid is realized, the fiber bragg grating and the dacron geogrid are formed into a harmonious whole body, and the deformation of the geogrid can be more accurately measured.
Description
Technical field
The invention belongs to the synthetic materials technical field, say more specifically a kind of fiber grating composite terylene geo-grid and preparation method thereof.
Background technology
In recent years, fast development along with fiber grating sensing technology, domestic and international many scientific research institutions and unit have carried out a series of research to fiber-optic grating sensor in the application of field of civil engineering, structural performance to civil infrastructure is carried out Real-Time Monitoring and diagnosis, the safety of evaluation structure timely and effectively, the performance variation of predict, and accident is carried out to early warning, but mainly be confined to bridge, building, pipeline, in the steel work such as tunnel and concrete structure, this type optical fiber grating sensing device is owing to being subject to fiber strength, range of strain, the restriction of the technical condition such as long Distance Transmission precision, can't meet in the soft foundation engineering, the highway and railway subgrade construction, dykes and dams, tall and big upright reinforced earth bulkhead, the large deformation precise monitoring requirement of the soil body engineerings such as road slope.
The rigidity of traditional strain gauge structure own is much larger than the rigidity of reinforced geo-grid, makes measurement result and actual conditions form very large error, causes distortion and the stressed measurement to soil body reinforced structure in the engineering of many employing strain meters to end in failure; Domestic small part scientific research institution is used armored fiber optic grating pair side slope and frozen earth roadbedly carries out the test section monitoring; without exception by the sensor fibre grating by tying up, stickup, the mode such as cementing and geo-grid or geosynthetics link together; also need to be above fiber grating after laying completes covering protection material and thin earth; then just can tamp filler; working procedure is loaded down with trivial details consuming time; the compatibility of deformation of fiber grating and geo-grid is consistent can't be guaranteed; and the armored fiber optic grating is expensive, can't use by spread.
Summary of the invention
In order to address the above problem, the invention provides that a kind of easy construction, cost are lower, the long-term precise monitoring that can meet geo-grid and the fiber grating composite terylene geo-grid and preparation method thereof of early warning needs in time, fiber grating composite terylene geo-grid of the present invention and preparation method thereof, is characterized in that described fiber grating composite terylene geo-grid is comprised of Fiber Bragg Grating FBG, composite strengthening sign yarn, warp thread, weft yarn, binding knitting yarn, polymer coating; In the grey cloth weaving process, Fiber Bragg Grating FBG and composite strengthening are identified to the stable composite construction of yarn and warp thread and weft yarn formation interlayer, then, by polymer coating, process, make fiber grating composite terylene geo-grid.
Fiber Bragg Grating FBG of the present invention, is characterized in that described Fiber Bragg Grating FBG is the drawing optical fibers of inscribing grating, can be used for measuring monitoring deformation and signal transmission, fibre core 125 μ m, and the long 10mm of grating, fibre diameter 1mm, extension at break is greater than 5%.
Composite strengthening sign yarn of the present invention; the line density that it is characterized in that described composite strengthening sign yarn is that 1000D～6000D comprises at least 4 high-strength polyester industrial long filaments that strengthen yarn and 2 sign dyed yarns; strengthen yarn and identify the outside that dyed yarn is arranged at fiber grating, form composite strengthening sign topping.
Warp thread of the present invention, the plying interlacing yarn that the line density that it is characterized in that described warp thread is 3000D～24000D or the twisted yarn of 10000D～80000D, for the warp-wise band of terylene geo-grid, meet the warp-wise requirement of strength of terylene geo-grid.
Weft yarn of the present invention, the plying interlacing yarn that the line density that it is characterized in that described weft yarn is 3000D～24000D or the twisted yarn of 6000D～72000D, for the broadwise band of terylene geo-grid, meet the latitudinal strength requirement of terylene geo-grid.
Binding knitting yarn of the present invention, the dacron thread that the line density that it is characterized in that described binding knitting yarn is 150D～1500D, for the warping coiled hair, braiding bundlees the warp-wise band and organizes crosspoint, the constraint fabric distortion.
Polymer coating of the present invention; it is characterized in that the mixture that described polymer coating adopts polyvinyl chloride, butadiene-styrene rubber painting, acrylic acid modified asphalt to be coated with; for the outer layer protection of terylene geo-grid, improve the performance of its anti-aging, UV resistant, acid and alkali-resistance.
Fiber grating composite terylene geo-grid of the present invention and preparation method thereof step is as follows:
The 1st step, the high-strength polyester industrial yarns that is 1000D～6000D by Fiber Bragg Grating FBG and line density is compound, and add at least 2 to identify dyed yarns, through plying and twisting, formation optical fiber is core, strengthens the composite strengthening sign yarn of the skin-core structure that the sign yarn is skin, and the production equipment rotating speed is 1600～3000 rev/mins, the twist is made as 10～70 twist with the fingers/rice, and the diameter that compound marking strengthens yarn is 1.5mm～10mm.
The 2nd step, the warp thread of knitted polyester geo-grid is penetrated to knitting zone by specification, radical and the method requirement of wearing of technological requirement, the plying interlacing yarn that warp yarn density is 3000D～24000D or the twisted yarn of 10000D～80000D, 1～8 warp thread also becomes one, wear 2～10 stock-traders' know-how yarn sky 4～24 holes, form the warp-wise spacer tape, when passing yarn, compound marking is strengthened to the warp-wise band that yarn together penetrates assigned address; Weft yarn penetrates the weft yarn Weft laying mechanism by latitudinal strength and mesh requirement on request by yarn specification, the radical of needs, the method for wearing, the plying interlacing yarn that weft threads density is 3000D～24000D or the twisted yarn of 6000D～72000D, 1～6 weft yarn also becomes one, wear 1～12 strand of weft yarn sky 4～16 sky, form the broadwise spacer tape; The binding knitting yarn need to adopt consistent being wound up on warp beam of warping machine even tension, and be placed on the creel of machine in advance by specification, radical and the length of weaving requirement, the dacron thread that binding knitting yarn line density is 150D～1500D.
The 3rd step, the grey cloth that sets the beginning compound geogrid such as the speed of a motor vehicle, warp run-in, latitudinal density, coiling tension of machine is weaved, machine braiding speed is 200～800 rev/mins, and latitudinal density is 1.5～6 bursts of picks per centimeter, and the grey cloth fabric width is 1.0 meters～6.22 meters.
The 4th step, the mixture that polymer coating adopts polyvinyl chloride, butadiene-styrene rubber painting, acrylic acid modified asphalt to be coated with, 300～800 rev/mins of speeds of agitator, mixing time is 10～30 minutes, temperature is controlled at below 40 ℃.
The 5th step, the grey cloth of fiber grating composite terylene geo-grid is impregnated in polymer coating glue groove, it is carried out to the impregnation coating, enter after coating that baking oven is dried, stentering forming, going out after baking oven blows a cold wind over carries out quick cooling curing, batch and make fiber grating composite terylene geo-grid finished product through tractive, oven temperature is controlled at 120 ℃～155 ℃, and the production line speed of service is controlled at 2.5～8m/min.
The invention has the beneficial effects as follows fiber grating composite terylene geo-grid and preparation method thereof, the 26S Proteasome Structure and Function of having realized fiber grating and terylene geo-grid is compound, make fiber grating and terylene geo-grid become harmonious integral body, can measure more accurately the deformation of geo-grid; In optical fiber, the quantity and spacing of grating need to be realized customization according to engineering monitoring, and in weaving process the prepositioned appointment monitoring location to the terylene geo-grid, when installing, engineering construction only need to bury fiber grating composite terylene geo-grid underground precalculated position, do not need to do specially treated and protection, greatly improve efficiency of construction, simple and easy to do; In fiber grating composite terylene geo-grid, drawing optical fibers and grating are inscribed and are carried out simultaneously, the grating array weldless point of making, and there is very high mechanical strength, the elongation at break of optical fiber can reach more than 5%, can measure the strain of geo-grid 0～5% in soil, service life is longer more stable, can meet long-term precise monitoring and the timely early warning needs of geo-grid.
The specific embodiment
Further describe embodiment of the present invention below by specific embodiment, so that the public grasps the specific embodiment of the invention method better.
embodiment 1
The 1st step, the high-strength polyester industrial yarns that is 1000D by Fiber Bragg Grating FBG and line density is compound, and add 2 to identify dyed yarns, through plying and twisting, formation optical fiber is core, strengthens the composite strengthening sign yarn of the skin-core structure that the sign yarn is skin, and the production equipment rotating speed is 1600 rev/mins, the twist is made as 10 sth. made by twisting/rice, and the diameter that compound marking strengthens yarn is 1.5mm.
The 2nd step, the warp thread of knitted polyester geo-grid is penetrated to knitting zone by specification, radical and the method requirement of wearing of technological requirement, the plying interlacing yarn that warp thread is line density 3000D, 8 warp thread also become one, wear 2～10 stock-traders' know-how yarn sky 4～24 holes, form the warp-wise spacer tape, when passing yarn, compound marking is strengthened to yarn and together penetrate the warp-wise band; The plying interlacing yarn that weft yarn is line density 3000D, 6 weft yarns also become one, wear 1～12 strand of weft yarn sky 4～16 sky, form the broadwise spacer tape; The binding knitting yarn is in advance by being wound up on warp beam of weaving requirements uniformity, and is placed on the creel of machine, the dacron thread that to bundle knitting yarn be line density 150D.
The 3rd step, the grey cloth that sets the beginning compound geogrid such as the speed of a motor vehicle, warp run-in, latitudinal density, coiling tension of machine is weaved, and machine braiding speed is 200 rev/mins, and latitudinal density is 1.5 bursts of picks per centimeter, and the grey cloth fabric width is 1.0 meters.
The 4th step, the mixture that polymer coating adopts polyvinyl chloride, butadiene-styrene rubber painting, acrylic acid modified asphalt to be coated with, proportioning is 1:1:1,300～800 rev/mins of speeds of agitator, mixing time is 10～30 minutes, temperature is controlled at below 40 ℃.
The 5th step, the grey cloth of fiber grating composite terylene geo-grid is impregnated in polymer coating glue groove, it is carried out to the impregnation coating, enter after coating that baking oven is dried, stentering forming, going out after baking oven blows a cold wind over carries out quick cooling curing, batch and make fiber grating composite terylene geo-grid finished product through tractive, oven temperature is controlled at 120 ℃, and the production line speed of service is controlled at 2.5m/min.
embodiment 2
The 1st step, the high-strength polyester industrial yarns that is 6000D by Fiber Bragg Grating FBG and line density is compound, and add 4 to identify dyed yarns, through plying and twisting, formation optical fiber is core, strengthens the composite strengthening sign yarn of the skin-core structure that the sign yarn is skin, and the production equipment rotating speed is 3000 rev/mins, the twist is made as 70 sth. made by twisting/rice, and the diameter that compound marking strengthens yarn is 10mm.
The 2nd step, the warp thread of knitted polyester geo-grid is penetrated to knitting zone by specification, radical and the method requirement of wearing of technological requirement, the twisted yarn that warp thread is line density 80000D, 8 warp thread also become one, wear 2～10 stock-traders' know-how yarn sky 4～24 holes, form the warp-wise spacer tape, when passing yarn, compound marking is strengthened to yarn and together penetrate the warp-wise band; Weft yarn penetrates the weft yarn Weft laying mechanism by latitudinal strength and mesh requirement on request by yarn specification, the radical of needs, the method for wearing, the twisted yarn that weft yarn is line density 72000D, 6 weft yarns also become one, wear 1～12 strand of weft yarn sky 4～16 sky, form the broadwise spacer tape; The binding knitting yarn is being wound up on warp beam of uniformity in advance, and be placed on the creel of machine, the dacron thread that the binding knitting yarn is line density 1500D.
The 3rd step, the grey cloth that sets the beginning compound geogrid such as the speed of a motor vehicle, warp run-in, latitudinal density, coiling tension of machine is weaved, and machine braiding speed is 800 rev/mins, and latitudinal density is 6 bursts of picks per centimeter, and the grey cloth fabric width is 6.22 meters.
The 4th step, the mixture that polymer coating adopts polyvinyl chloride, butadiene-styrene rubber painting, acrylic acid modified asphalt to be coated with, proportioning is 3:2:1,800 rev/mins of speeds of agitator, mixing time is 30 minutes, temperature is controlled at below 40 ℃.
The 5th step, the grey cloth of fiber grating composite terylene geo-grid is impregnated in polymer coating glue groove, it is carried out to the impregnation coating, enter after coating that baking oven is dried, stentering forming, going out after baking oven blows a cold wind over carries out quick cooling curing, batch and make fiber grating composite terylene geo-grid finished product through tractive, oven temperature is controlled at 155 ℃, and the production line speed of service is controlled at 8m/min.
embodiment 3
The 1st step, the high-strength polyester industrial yarns that is 4000D by Fiber Bragg Grating FBG and line density is compound, and add 3 to identify dyed yarns, through plying and twisting, formation optical fiber is core, strengthens the composite strengthening sign yarn of the skin-core structure that the sign yarn is skin, and the production equipment rotating speed is 2000 rev/mins, the twist is made as 40 sth. made by twisting/rice, and the diameter that compound marking strengthens yarn is 6mm.
The 2nd step, the warp thread of knitted polyester geo-grid is penetrated to knitting zone by specification, radical and the method requirement of wearing of technological requirement, the plying interlacing yarn that warp thread is line density 12000D, 8 warp thread also become one, wear 2～10 stock-traders' know-how yarn sky 4～24 holes, form the warp-wise spacer tape, when passing yarn, compound marking is strengthened to the warp-wise band that yarn together penetrates assigned address; Weft yarn penetrates the weft yarn Weft laying mechanism by latitudinal strength and mesh requirement on request by yarn specification, the radical of needs, the method for wearing, the plying interlacing yarn that weft yarn is line density 12000D, 6 weft yarns also become one, wear 1～12 strand of weft yarn sky 4～16 sky, form the broadwise spacer tape; The binding knitting yarn is being wound up on warp beam of uniformity in advance, and be placed on the creel of machine, the dacron thread that the binding knitting yarn is line density 800D.
The 3rd step, the grey cloth that sets the beginning compound geogrid such as the speed of a motor vehicle, warp run-in, latitudinal density, coiling tension of machine is weaved, and machine braiding speed is 500 rev/mins, and latitudinal density is 4 bursts of picks per centimeter, and the grey cloth fabric width is 4 meters.
The 4th step, the mixture that polymer coating adopts polyvinyl chloride, butadiene-styrene rubber painting, acrylic acid modified asphalt to be coated with, 500 rev/mins of speeds of agitator, mixing time is 20 minutes, temperature is controlled at below 40 ℃.
The 5th step, the grey cloth of fiber grating composite terylene geo-grid is impregnated in polymer coating glue groove, it is carried out to the impregnation coating, enter after coating that baking oven is dried, stentering forming, going out after baking oven blows a cold wind over carries out quick cooling curing, batch and make fiber grating composite terylene geo-grid finished product through tractive, oven temperature is controlled at 130 ℃, and the production line speed of service is controlled at 5m/min.
The invention has the beneficial effects as follows fiber grating composite terylene geo-grid and preparation method thereof, the 26S Proteasome Structure and Function of having realized fiber grating and terylene geo-grid is compound, make fiber grating and terylene geo-grid become harmonious integral body, can measure more accurately the deformation of geo-grid; In optical fiber, the quantity and spacing of grating need to be realized customization according to engineering monitoring, and in weaving process the prepositioned appointment monitoring location to the terylene geo-grid, when installing, engineering construction only need to bury fiber grating composite terylene geo-grid underground precalculated position, do not need to do specially treated and protection, greatly improve efficiency of construction, simple and easy to do; In fiber grating composite terylene geo-grid, drawing optical fibers and grating are inscribed and are carried out simultaneously, the grating array weldless point of making, and there is very high mechanical strength, the elongation at break of optical fiber can reach more than 5%, can measure the strain of geo-grid 0～5% in soil, service life is longer more stable, can meet long-term precise monitoring and the timely early warning needs of geo-grid.
Claims (8)
1. fiber grating composite terylene geo-grid and preparation method thereof, is characterized in that described fiber grating composite terylene geo-grid is comprised of Fiber Bragg Grating FBG, composite strengthening sign yarn, warp thread, weft yarn, binding knitting yarn, polymer coating; In the grey cloth weaving process, Fiber Bragg Grating FBG and composite strengthening are identified to the stable composite construction of yarn and warp thread and weft yarn formation interlayer, then, by polymer coating, process, make fiber grating composite terylene geo-grid.
2. fiber grating composite terylene geo-grid according to claim 1 and preparation method thereof, it is characterized in that described Fiber Bragg Grating FBG is the drawing optical fibers of inscribing grating, can be used for measuring monitoring deformation and signal transmission, fibre core 125 μ m, the long 10mm of grating, fibre diameter 1mm, extension at break is greater than 5%.
3. fiber grating composite terylene geo-grid according to claim 1 and preparation method thereof; it is characterized in that described composite strengthening sign thread density is that 1000D～6000D comprises at least 4 high-strength polyester industrial long filaments that strengthen yarn and 2 sign dyed yarns; strengthen yarn and identify the outside that dyed yarn is arranged at fiber grating, form composite strengthening sign topping.
4. fiber grating composite terylene geo-grid according to claim 1 and preparation method thereof, it is characterized in that plying interlacing yarn that described warp yarn density is 3000D～24000D or the twisted yarn of 10000D～80000D, for the warp-wise band of terylene geo-grid, meet the warp-wise requirement of strength of terylene geo-grid.
5. fiber grating composite terylene geo-grid according to claim 1 and preparation method thereof, it is characterized in that plying interlacing yarn that described weft threads density is 3000D～24000D or the twisted yarn of 6000D～72000D, broadwise band for the terylene geo-grid, meet the latitudinal strength requirement of terylene geo-grid.
6. fiber grating composite terylene geo-grid according to claim 1 and preparation method thereof, it is characterized in that the dacron thread that described binding knitting yarn line density is 150D～1500D, for the warping coiled hair, braiding bundlees the warp-wise band and organizes crosspoint, the constraint fabric distortion.
7. fiber grating composite terylene geo-grid according to claim 1 and preparation method thereof; it is characterized in that the mixture that described polymer coating adopts polyvinyl chloride, butadiene-styrene rubber painting, acrylic acid modified asphalt to be coated with; for the outer layer protection of terylene geo-grid, improve the performance of its anti-aging, UV resistant, acid and alkali-resistance.
8. fiber grating composite terylene geo-grid according to claim 1 and preparation method thereof is characterized in that the preparation process of fiber grating composite terylene geo-grid is as follows:
The 1st step, the high-strength polyester industrial yarns that is 1000D～6000D by Fiber Bragg Grating FBG and line density is compound, and add at least 2 to identify dyed yarns, through plying and twisting, formation optical fiber is core, strengthens the composite strengthening sign yarn of the skin-core structure that the sign yarn is skin, and the production equipment rotating speed is 1600～3000 rev/mins, the twist is made as 10～70 twist with the fingers/rice, and the diameter that compound marking strengthens yarn is 1.5mm～10mm; The 2nd step, the warp thread of knitted polyester geo-grid is penetrated to knitting zone by specification, radical and the method requirement of wearing of technological requirement, warp thread is the line density plying interlacing yarn that is 3000D～24000D or the twisted yarn of 10000D～80000D, 1～8 warp thread also becomes one, wear 2～10 stock-traders' know-how yarn sky 4～24 holes, form the warp-wise spacer tape, when passing yarn, compound marking is strengthened to the warp-wise band that yarn together penetrates assigned address; Weft yarn penetrates the weft yarn Weft laying mechanism by latitudinal strength and mesh requirement on request by yarn specification, the radical of needs, the method for wearing, weft yarn is the line density plying interlacing yarn that is 3000D～24000D or the twisted yarn of 6000D～72000D, 1～6 weft yarn also becomes one, wear 1～12 strand of weft yarn sky 4～16 sky, form the broadwise spacer tape; The binding knitting yarn need to adopt consistent being wound up on warp beam of warping machine even tension, and be placed on the creel of machine in advance by specification, radical and the length of weaving requirement, the dacron thread that binding knitting yarn line density is 150D～1500D; The 3rd step, the grey cloth that sets the beginning compound geogrid such as the speed of a motor vehicle, warp run-in, latitudinal density, coiling tension of machine is weaved, machine braiding speed is 200～800 rev/mins, and latitudinal density is 1.5～6 bursts of picks per centimeter, and the grey cloth fabric width is 1.0 meters～6.22 meters; The 4th step, the mixture that polymer coating adopts polyvinyl chloride, butadiene-styrene rubber painting, acrylic acid modified asphalt to be coated with, 300～800 rev/mins of speeds of agitator, mixing time is 10～30 minutes, temperature is controlled at below 40 ℃; The 5th step, the grey cloth of fiber grating composite terylene geo-grid is impregnated in polymer coating glue groove, it is carried out to the impregnation coating, enter after coating that baking oven is dried, stentering forming, going out after baking oven blows a cold wind over carries out quick cooling curing, batch and make fiber grating composite terylene geo-grid finished product through tractive, oven temperature is controlled at 120 ℃～155 ℃, and the production line speed of service is controlled at 2.5～8m/min.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105401442A (en) * | 2015-11-30 | 2016-03-16 | 泰安路德工程材料有限公司 | Method for processing coating of ultra-high-molecular-weight polyethylene fiber grating net |
| CN106500867A (en) * | 2016-10-26 | 2017-03-15 | 上海市政工程设计研究总院（集团）有限公司 | The installation method of dykes and dams monitoring internal temperature system |
| CN110230148A (en) * | 2019-07-03 | 2019-09-13 | 浩珂科技有限公司 | A kind of high-strength warp-knitting cloth and preparation method thereof |
| CN110685289A (en) * | 2019-10-21 | 2020-01-14 | 山东大学 | Geogrid capable of monitoring slope deformation |
| CN112501781A (en) * | 2020-10-23 | 2021-03-16 | 宏诚合成材料(江苏)有限公司 | Production method of polyester fiber grating for road construction |
| CN112832225A (en) * | 2020-12-31 | 2021-05-25 | 湖北三江航天红阳机电有限公司 | Intelligent geogrid |
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| WO2005064061A1 (en) * | 2003-12-30 | 2005-07-14 | Samyang Corporation | A geogrid composed of fiber-reinforced polymeric strip and method for producing the same |
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| CN110230148A (en) * | 2019-07-03 | 2019-09-13 | 浩珂科技有限公司 | A kind of high-strength warp-knitting cloth and preparation method thereof |
| CN110685289A (en) * | 2019-10-21 | 2020-01-14 | 山东大学 | Geogrid capable of monitoring slope deformation |
| CN112501781A (en) * | 2020-10-23 | 2021-03-16 | 宏诚合成材料(江苏)有限公司 | Production method of polyester fiber grating for road construction |
| CN112832225A (en) * | 2020-12-31 | 2021-05-25 | 湖北三江航天红阳机电有限公司 | Intelligent geogrid |
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