CN207277345U - A kind of roadbed side slope flexible stereo curtain broadcasts safeguard structure - Google Patents
A kind of roadbed side slope flexible stereo curtain broadcasts safeguard structure Download PDFInfo
- Publication number
- CN207277345U CN207277345U CN201721317291.2U CN201721317291U CN207277345U CN 207277345 U CN207277345 U CN 207277345U CN 201721317291 U CN201721317291 U CN 201721317291U CN 207277345 U CN207277345 U CN 207277345U
- Authority
- CN
- China
- Prior art keywords
- mat
- straw screen
- slope
- layer
- side slope
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Cultivation Of Plants (AREA)
Abstract
The utility model discloses a kind of roadbed side slope flexible stereo curtain to broadcast safeguard structure, including Seed Layer, wet straw screen or mat layer and fixing piece, Seed Layer is formed after uniformly being sent out in the slope surface of roadbed side slope by sowing seed, wet straw screen or mat layer be tile again after straw screen or mat is soaked completely, completely docile covering Seed Layer, wet straw screen or mat layer by each strip wet straw screen or mat according to wind direction overlap joint form.Straw screen or mat is innovatively used for protecting slope ecology by the utility model, and achieves comparatively ideal effect, only 4.5 yuan of the cost per square meter, has the meaning promoted the use of on a large scale in roadbed side slope protection field.The attaching effect that the roadbed side slope flexible stereo curtain of the utility model broadcasts the wet straw screen or mat layer and soil side slope surface in safeguard structure is good, not only solves the problems, such as airborne dust, but also solves the problems, such as rain drop erosion, and in addition wet straw screen or mat layer is more advantageous to the sprouting of vegetable seeds.The safeguard structure early period of the utility model leans on shrub by wet straw screen or mat, mid-term by turf, later stage, realizes the stereoscopic protective of side slope.
Description
Technical field
It the utility model is related to road slope protection greening technology, and in particular to a kind of roadbed side slope flexible stereo curtain broadcasts protection knot
Structure.In " roadbed side slope flexible stereo curtain broadcasts safeguard structure ", flexibility refer to this material of straw screen or mat be it is flexible, what curtain was broadcast
It is meant that straw screen or mat is sowed；Solid be meant that using the safeguard structure after roadbed side slope, early period by straw screen or mat, mid-term by turf,
Later stage leans on shrub, realizes the stereoscopic protective of side slope.
Background technology
Highway construction process inevitably produces many slope projects, these original landforms soil of slope failure produced
The ecological balance of earth vegetation system, earth's surface is exposed, and soil resistance rain erosion ability declines, therefore soil erosion aggravates, ecology
Destruction is on the rise；If bare side sloping punishment is ineffective, surrounding enviroment and highway will be produced safely in itself irreversible tight
Weight disastrous effect.Shown according to investigation, since highway construction causes the middle and lower reach of Yangtze River to newly increase 50,000,000 tons of soil erosion every year
More than.Past traditional bank protection mode mostly by the way of pure project post-evaluation, such as bricklaying protection or three dimensional network hydraulic sowing grass seeds by duster,
For this pure project post-evaluation without ecological benefits, landscape effect is poor, does not meet today's society ecology, the theory of environmental protection.
In order to reach ecological revetment effect, propose to use plant plait blanket at present, be also vegetable fiber blanket.Plant plait blanket（Plant
Fibres blanket）It is that the basic materials such as corn, wheat straw are simply processed into strip-shaped fibrous shape, blanket is woven into after being combed
Natural fiber layer is formed, lower floor is aided with nutrition soil layer, and is needed according to client to insert relevant vegetable seeds, then with upper and lower two layers
Strengthen the vegetable fiber blanket that net consolidation just forms an entirety；Sizing net, natural fiber layer, nutrition soil layer are followed successively by from top to bottom
Seed addition, dedicated paper, sizing net.Such as Chinese patent literature CN 105746125A（Application number 201610112934.3）, in
106759392 A of state patent document CN（Application number 201611034850.9）Disclose using plant plait blanket to highway
The method of bank protection.Although the ecological revetment effect of plant plait blanket is ideal, the of high cost of vegetable fiber blanket is reached per square meter
20 yuan.
In order to solve the problems, such as that plant plait blanket is of high cost, applicant Jiangsu Heng Ji road and bridge Co., Ltds open in sea（Hai'an is extremely
Qidong）Grope during expressway construction and innovated ecological vestige, greatly reduce ecological revetment cost.
Hai'an to Qidong highway HQ-RD1 bid sections arise from Hai'an, such as Rugao, east intersection Yuan Zhuan towns Zhu Zhuan villages and RH1
Mark connects, afterwards the secondary power high-voltage line in Xia Chuan 500KV Japan east eastwards, on Zhu Zhuan villagers' committees north side across such as east X301, western icepro
River, connects up to east longitude Pu Qiao villages along Yuan's Pu lines north side afterwards, then on enjoy a fairly comfortable life after newly-built river, X218 village, in Hai Hetan
Across coastal line and Yan Ganghe in village, line position continues to set Bing tea service areas backward at 19 groups of Yuan Zhuan villages North Sea river shoal village eastwards
Across X205, Red Star river on the southeast, bypass in Sun Zhuan villagers' committees northeast side and connect after wearing country fair bridge north side and marked with RD2, terminal stake
Number K20+350.
According to saving, friendship is founded the bureau, sea opens and builds instruction that sea is opened high speed project cutting is practical for applicant Jiangsu Heng Ji road and bridge Co., Ltds
Green engineering has been forged on the spot, and work progress is groped and passes through ecological vestige scheme application this practicality of practice newly
Type, it is expected the utility model roadbed side slope flexible stereo curtain broadcast safeguard structure can be in the highway of similar geological conditions
It is promoted in process of construction.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of roadbed side slope flexible stereo curtain and broadcasts safeguard structure.
The technical solution for realizing the utility model aim is that a kind of roadbed side slope flexible stereo curtain broadcasts safeguard structure, including kind
Sublayer, wet straw screen or mat layer and fixing piece, Seed Layer are formed after uniformly being sent out in the slope surface of roadbed side slope by sowing seed, wet grass
Curtain layer is that tiling obtains after straw screen or mat is soaked completely, and the completely docile covering Seed Layer of wet straw screen or mat layer, wet straw screen or mat layer is by each strip
Wet straw screen or mat according to wind direction overlap joint form, fixing piece is inserted into the soil of roadbed side slope from up to down, and wet straw screen or mat layer is fixed on
On roadbed side slope；The top of the slope and bottom of slope of roadbed side slope are respectively equipped with a fixed ditch, the top of each straw screen or mat of wet straw screen or mat layer
It is separately fixed at low side in corresponding fixed ditch.
As optional, the mixed-matrix layer of suitable for plant growth is further included, mixed-matrix layer is arranged on roadbed side slope
Between slope surface and Seed Layer.
Seed Layer is sowing seed and silt mixed layer.
The thickness of wet straw screen or mat layer is 2 to 6mm.
Two adjacent straw screen or mat are overlapped according to down wind, and adjacent two straw screen or mat lap widths are 8cm to 10cm, are being overlapped
Fixing piece is set from up to down on side, and the fixing piece is one or both of bamboo pole, U-shaped nail or T-shaped nail or three kinds.
When down wind overlaps, wind blows to the left side from the right, then during overlap joint, every right side edge positioned at the straw screen or mat on the left side
Covered by the right straw screen or mat, correspondingly, wind blows to the right from the left side, then during overlap joint, every left side positioned at the straw screen or mat on the right
Edge is covered by left side straw screen or mat.
For the top of each straw screen or mat, the inner surface of fixed ditch is completely covered along slope surface to the direction of top of the slope for straw screen or mat,
Backfill fills up fixed ditch and is fixed straw screen or mat；For the bottom of slope end of straw screen or mat, after straw screen or mat is laid with from up to down along slope surface, remain
Remaining bottom part enters the fixation ditch of bottom of slope and fixed ditch inner surface is completely covered, and backfill fills up the fixation ditch of bottom of slope.
The utility model has positive effect：（1）The utility model innovatively will be conventionally used to vegetable cultivation, road is supported
The straw screen or mat of shield is used for protecting slope ecology, and achieves comparatively ideal effect；The roadbed side slope flexible stereo of the utility model
Curtain broadcasts cost only 4.5 yuan of the safeguard structure per square meter, compared to 20 yuan/m of the careless blanket of use2Cost, greatly reduce cost, have
In the meaning that roadbed side slope protection field is promoted the use of on a large scale.
（2）In order to reach the anti-rainwater punching that early stage reduces the wind sand airborne dust effect and raising sandy soil side slope of sandy soil side slope
Brush ability, the roadbed side slope flexible stereo curtain of the utility model is broadcast in safeguard structure is just provided that wet straw screen or mat on the seed layer
Layer, wet straw screen or mat layer and the attaching effect on native side slope surface are good, not only solve the problems, such as airborne dust, but also solve the problems, such as rain drop erosion, in addition wet
Straw screen or mat layer is more advantageous to the sprouting of vegetable seeds.Using wet straw screen or mat layer also ensure that vegetable seeds do not root before watering or
Person is still dispersed during drenching with rain.
（3）The plant species sublayer emergence rate that the roadbed side slope flexible stereo curtain of the utility model is broadcast in safeguard structure may be up to
90%, approached with the emergence rate of plant plait blanket, difference lies in several a little earlier days of the seedling-growing time of plant plait blanket, but final emergence rate is
Basically identical.
（4）The roadbed side slope flexible stereo curtain of the utility model, which broadcasts safeguard structure, realizes the highway effect green when building
Fruit, after roadbed side slope shaping, sets the safeguard structure of the utility model on the surface of roadbed side slope immediately, so as to set just
Phase anti-airborne dust protection against erosion, further strengthens dust-proof protection against erosion ability after seed sprouting growth, and starts with afforestation effect.
（5）The straw screen or mat processing used in the safeguard structure of the utility model is fast, gathers materials on the spot after straw-curtain braiding machine weaves
It can use.Adjacent two straw screen or mat down winds overlap joint 8 is to 10cm, and equidistantly slotting bamboo pole is fixed on overlap edge, is used
The same cost of fixed material bamboo pole is low, biodegradable.
Brief description of the drawings
Fig. 1 is the schematic diagram of the safeguard structure of the utility model；
Fig. 2 is the fixation schematic diagram of the wet straw screen or mat layer in the safeguard structure of the utility model；
Mark in above-mentioned attached drawing is as follows：Roadbed side slope 1, Seed Layer 2, wet straw screen or mat layer 3, overlap edge 31, fixing piece 4, is returned
Banket 5.
Embodiment
（Embodiment 1）
See Fig. 1, the roadbed side slope flexible stereo curtain of the present embodiment, which broadcasts safeguard structure, to be included Seed Layer 2, wet straw screen or mat layer 3 and consolidate
Determine part 4.The Seed Layer 2 is formed after uniformly being sent out in the slope surface of roadbed side slope 1 by sowing seed.Wet straw screen or mat layer 3 be by
Straw screen or mat tiles after soaking completely and obtains, wet straw screen or mat layer 3 completely it is docile covering Seed Layer 2, wet straw screen or mat layer 3 by each strip straw screen or mat
Formed according to wind direction overlap joint.Fixing piece 4 is inserted into the soil of roadbed side slope 1 from up to down, and wet straw screen or mat layer 3 is fixed on roadbed side
On slope 1.
The slope surface of roadbed side slope 1 is straight, smooth and stable, no turquoise, danger stone, without engineering rubbish and big stone in soil
The protrusions such as block, weeds.It is no more than 10% without the stone for being more than 4cm, simultaneously greater than the stone content of 2cm in the soil layer of 10cm thickness.
Seed in Seed Layer 2 is sowing（Grass and shrub）Seed mixture.In order to enable seed and soil good contact, broadcast
Broadcasted sowing after being dressed seed during kind with silt, therefore Seed Layer 2 is seed and silt mixed layer.
The sum of length in reserve that the length of wet straw screen or mat layer 3 is fixed according to the length of top of the slope to bottom of slope and both ends determines, wide
Degree is the normal length of rice straw, and thickness is 2 to 6mm, careless with the reduction of temperature during construction in summer thickness 2mm
The thickness of curtain layer gradually increases.
Two adjacent straw screen or mat are overlapped according to down wind, and by taking Fig. 1 as an example, wind blows to the left side from the right, then during overlap joint, often
The right side edge that bar is located at the straw screen or mat on the left side is covered by the right straw screen or mat, correspondingly, wind blows to the right from the left side, then during overlap joint,
Every left side edge positioned at the straw screen or mat on the right is covered by left side straw screen or mat.Straw screen or mat edge will not be blown afloat by beam wind after down wind overlap joint
Influence the attaching with slope surface.Two adjacent straw screen or mat lap widths are 8cm to 10cm, set and fix from up to down on overlap edge
Part 4, the fixing piece 4 are one or both of bamboo pole, U-shaped nail or T-shaped nail or three kinds.
See Fig. 2, the top of the slope and bottom of slope of roadbed side slope 1 are respectively equipped with a fixed ditch.Each straw screen or mat of wet straw screen or mat layer 3
Top and low side are separately fixed in corresponding fixed ditch.For the top of each straw screen or mat, straw screen or mat is along slope surface to top of the slope
Direction（For from right to left in Fig. 2）The inner surface of fixed ditch, and the length more than needed for laterally covering fixed ditch is completely covered；Construction
When the fixed ditch of straw screen or mat covering inner surface after added in fixed ditch and fill up backfill 5, straw screen or mat is fixed, is then sprinkled
Vegetable seeds, covers the remaining length in straw screen or mat top on it.For the bottom of slope end of straw screen or mat, straw screen or mat is spread from up to down along slope surface
If after, remaining bottom part enters the fixation ditch of bottom of slope and fixed ditch inner surface is completely covered, and then backfill 5 fills up slope
The fixation ditch at bottom.
In order to reach the anti-rain drop erosion that early stage reduces the wind sand airborne dust effect and raising sandy soil side slope of sandy soil side slope
Ability, the roadbed side slope flexible stereo curtain of the utility model is broadcast in safeguard structure is just provided that wet straw screen or mat layer on the seed layer,
Wet straw screen or mat layer and the attaching effect on native side slope surface are good, not only solve the problems, such as airborne dust, but also solve the problems, such as rain drop erosion, in addition wet straw screen or mat
Layer is more advantageous to the sprouting of vegetable seeds.It also ensure that vegetable seeds is watering or drenching before not rooting using wet straw screen or mat layer
It is still dispersed during rain.
The utility model employs top of the slope, the fixation ditch of bottom of slope is fixed the collaboration of part 4 and fixes when straw screen or mat is fixed
Mode, on the one hand ensure fixed effect, be on the other hand to ensure that straw screen or mat tenses the attaching without neutral gear with slope surface always.
（Embodiment 2）
The roadbed side slope flexible stereo curtain of the present embodiment broadcasts safeguard structure, and remaining is same as Example 1, and difference is：
The mixed-matrix layer of one layer of suitable for plant growth, the mixed base are also provided between the slope surface and Seed Layer 2 of roadbed side slope 1
Matter layer is formed after the mixture obtained by compoundings such as organic matter, depot fertilizer, water-retaining agent, pH adjusting agent, normal soil sprays.It is mixed
Close in the case that hypothallus is badly unsuitable for germination suitable for soil environment, after being additionally arranged mixed-matrix layer, seed can be with
Successfully germinate.
（Test example）
Applicant opens 16+120~K16+500 sections of both sides of high speed K in sea（Along port river bridge east and west sides end of the bridge）Planted
Test section is constructed, the safeguard structure of the use embodiment 1 of arrangement and method for construction 1, the use plant plait blanket of arrangement and method for construction 2, in two schemes
Vegetable seeds is identical.
It is on July 13rd, 2017 that test section, which starts the construction time, and the construction end time is July 14, adds up the construction used time
Two days, complete plant plait blanket 1405.9m2, straw screen or mat 706.4m2。
For arrangement and method for construction 1, straw screen or mat cost：4.5 yuan/m2（Comprising straw screen or mat, seed, construction, maintenance to 45 days）；Emergence
Rate reaches 90%.Early period is wet straw screen or mat layer due to covering, there is certain bank protection function, and Water-saving effect is general, basic maintenance watering
It can only once keep one day.Early period is protected by straw screen or mat, mid-term by turf, later stage by shrub side slope.
For arrangement and method for construction 2, plant plait blanket cost：20 yuan/m2（Comprising careless blanket, seed, construction, maintenance to 45 days）；Go out
Seedling effect is good, and emergence is uniform, growing way is consistent, and slope foot position is especially preferable, has certain bank protection function early period, and Water-saving effect is most
It is good（Basic maintenance watering can once be kept two days）, emergence rate reaches more than 90%.
By Experimental Comparison, the flexible stereo curtain of the utility model broadcasts safeguard structure can reach the effect of plant plait blanket substantially
Fruit, and the cost using careless blanket is greatly reduced, there is the meaning widelyd popularize.
Claims (7)
1. a kind of roadbed side slope flexible stereo curtain broadcasts safeguard structure, it is characterised in that：Including Seed Layer（2）, wet straw screen or mat layer（3）With
Fixing piece（4）, Seed Layer（2）It is uniformly to be sent out in roadbed side slope by sowing seed（1）Slope surface on after formed, wet straw screen or mat layer
（3）It is tiling and complete docile covering Seed Layer after straw screen or mat is soaked completely（2）, wet straw screen or mat layer（3）By the wet grass of each strip
Curtain is formed according to wind direction overlap joint, fixing piece（4）Roadbed side slope is inserted into from up to down（1）Soil in, by wet straw screen or mat layer（3）It is fixed
In roadbed side slope（1）On；Roadbed side slope（1）Top of the slope and bottom of slope be respectively equipped with a fixed ditch, wet straw screen or mat layer（3）Each
The top of straw screen or mat and low side are separately fixed in corresponding fixed ditch.
2. roadbed side slope flexible stereo curtain according to claim 1 broadcasts safeguard structure, it is characterised in that：Further include suitable plant
The mixed-matrix layer of thing growth, mixed-matrix layer are arranged on roadbed side slope（1）Slope surface and Seed Layer（2）Between.
3. roadbed side slope flexible stereo curtain according to claim 1 broadcasts safeguard structure, it is characterised in that：Seed Layer（2）It is
Sowing seed and silt mixed layer.
4. roadbed side slope flexible stereo curtain according to claim 1 broadcasts safeguard structure, it is characterised in that：Wet straw screen or mat layer（3）
Thickness be 2 to 6mm.
5. roadbed side slope flexible stereo curtain according to claim 1 broadcasts safeguard structure, it is characterised in that：Two adjacent grass
Curtain is overlapped according to down wind, and adjacent two straw screen or mat lap widths are 8cm to 10cm, is set and is fixed from up to down on overlap edge
Part（4）, the fixing piece（4）For one or both of bamboo pole, U-shaped nail or T-shaped nail or three kinds.
6. roadbed side slope flexible stereo curtain according to claim 5 broadcasts safeguard structure, it is characterised in that：Down wind overlaps
When, when wind blows to the left side from the right, every right side edge of straw screen or mat positioned at the left side is covered by the right straw screen or mat, correspondingly, wind from
When the left side blows to the right, every left side edge positioned at the straw screen or mat on the right is covered by left side straw screen or mat.
7. roadbed side slope flexible stereo curtain according to claim 1 broadcasts safeguard structure, it is characterised in that：For each grass
The inner surface of fixed ditch, backfill are completely covered along slope surface to the direction of top of the slope for the top of curtain, straw screen or mat（5）Filling up fixed ditch will
Straw screen or mat is fixed；For the bottom of slope end of straw screen or mat, after straw screen or mat is laid with from up to down along slope surface, remaining bottom part enters bottom of slope
Fixation ditch and fixed ditch inner surface is completely covered, backfill（5）Fill up the fixation ditch of bottom of slope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721317291.2U CN207277345U (en) | 2017-10-12 | 2017-10-12 | A kind of roadbed side slope flexible stereo curtain broadcasts safeguard structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721317291.2U CN207277345U (en) | 2017-10-12 | 2017-10-12 | A kind of roadbed side slope flexible stereo curtain broadcasts safeguard structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207277345U true CN207277345U (en) | 2018-04-27 |
Family
ID=61979986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721317291.2U Active CN207277345U (en) | 2017-10-12 | 2017-10-12 | A kind of roadbed side slope flexible stereo curtain broadcasts safeguard structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207277345U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108901648A (en) * | 2018-05-31 | 2018-11-30 | 中国二十二冶集团有限公司 | Ecological grass mat and its construction method protected for soil-slope |
| CN109691336A (en) * | 2018-12-30 | 2019-04-30 | 内蒙古蒙草生态环境（集团）股份有限公司 | A kind of Mine production shade water-retaining method |
| CN109874639A (en) * | 2019-03-21 | 2019-06-14 | 金陵科技学院 | A kind of farmland sand irrigation canals and ditches soil and water conservation works system |
-
2017
- 2017-10-12 CN CN201721317291.2U patent/CN207277345U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108901648A (en) * | 2018-05-31 | 2018-11-30 | 中国二十二冶集团有限公司 | Ecological grass mat and its construction method protected for soil-slope |
| CN109691336A (en) * | 2018-12-30 | 2019-04-30 | 内蒙古蒙草生态环境（集团）股份有限公司 | A kind of Mine production shade water-retaining method |
| CN109874639A (en) * | 2019-03-21 | 2019-06-14 | 金陵科技学院 | A kind of farmland sand irrigation canals and ditches soil and water conservation works system |
| CN109874639B (en) * | 2019-03-21 | 2024-02-02 | 金陵科技学院 | Ecological engineering system for retaining water and soil in farmland sand canal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107268645B (en) | A kind of construction method of alien earth sparging base material and Techniques of Ecological Protection in Expressway Side Slope | |
| CN103270881B (en) | Rapid ecological restoration method for rock-soil side slopes | |
| CN101761086B (en) | Three-dimensional net greening technique for roadbed side slope | |
| CN104805845B (en) | A kind of flexible bank protecting method of feldspathic sandstone natural slope | |
| CN102138508B (en) | Method for greening and protecting steep road side slope by using biological crust | |
| CN103535129B (en) | A kind of greening method of limestone slope | |
| KR100945078B1 (en) | Vegetation mat for revetment | |
| CN108901648A (en) | Ecological grass mat and its construction method protected for soil-slope | |
| CN207277345U (en) | A kind of roadbed side slope flexible stereo curtain broadcasts safeguard structure | |
| CN208266847U (en) | Quickly repair structure in Gullied suitable for Canal in Loess Area | |
| CN108476648A (en) | A kind of method and system of rock coast Difficult site revegetation | |
| CN108093729A (en) | Side-slope greening and protection method | |
| CN104904362A (en) | Method for repairing desertification grassland in high and cold humid regions | |
| CN109322314A (en) | High altitudes and cold area roadbed side slope turf skeleton grass planting means of defence | |
| KR101226872B1 (en) | Method for green planting a slope by vegetation-mat | |
| CN107100176A (en) | A kind of expressway slope greening system | |
| CN107135802A (en) | A kind of concrete slope greening method and concrete slope planting technique blanket | |
| CN103548639B (en) | Landscape tree cultivation method applicable to saline-alkali soil | |
| CN102199921B (en) | Method for greening semi-weathered rocky side slope by using indigenous plants | |
| KR100860241B1 (en) | Afforesting method of sloping surface | |
| CN109618874B (en) | Phosphogypsum vegetation and preparation method thereof | |
| JPH1132568A (en) | Greening in arid land/desert land | |
| CN111236271A (en) | Slope ecological restoration system and method | |
| CN103975738B (en) | Based on the vegetation construction method of bastard coal clitter | |
| KR101074565B1 (en) | Method for green planting a slope by jute-net and pulp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 213000 No.12 Yongning Road, Tianning District, Changzhou City, Jiangsu Province Patentee after: Jiangsu Hengji Road & Bridge Co.,Ltd. Address before: 213000 No.12 Yongning Road, Tianning District, Changzhou City, Jiangsu Province Patentee before: JIANGSU HENGJI ROAD & BRIDGE ENGINEERING Co.,Ltd. |