CN107387124A - Tunnel lining concrete maintenance construction technique - Google Patents
Tunnel lining concrete maintenance construction technique Download PDFInfo
- Publication number
- CN107387124A CN107387124A CN201710731335.4A CN201710731335A CN107387124A CN 107387124 A CN107387124 A CN 107387124A CN 201710731335 A CN201710731335 A CN 201710731335A CN 107387124 A CN107387124 A CN 107387124A
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- Prior art keywords
- maintenance
- temperature
- tunnel
- region
- humidity
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- 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.)
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Links
- 238000012423 maintenance Methods 0.000 title claims abstract description 112
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000010276 construction Methods 0.000 title claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- 238000012545 processing Methods 0.000 claims abstract description 12
- 230000005855 radiation Effects 0.000 claims abstract description 11
- 238000005507 spraying Methods 0.000 claims abstract description 8
- 238000012544 monitoring process Methods 0.000 claims abstract description 5
- 238000009835 boiling Methods 0.000 claims description 10
- 239000012530 fluid Substances 0.000 claims description 6
- 230000003020 moisturizing effect Effects 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 5
- 238000000889 atomisation Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000009395 breeding Methods 0.000 abstract description 3
- 230000001488 breeding effect Effects 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 description 8
- 239000007921 spray Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000033764 rhythmic process Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002663 nebulization Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The present invention relates to tunnel-liner conservation technology field, there is provided a kind of tunnel lining concrete maintenance construction technique.Tunnel-liner is divided axially into multiple by maintenance section by this technique, each it is divided into again by maintenance section multiple by maintenance region, maintenance operations are carried out by maintenance section to each one by one, maintenance operations include monitoring each by the temperature and humidity in maintenance region, spraying treatment and heat radiation processing are carried out by maintenance region respectively to each simultaneously, so as to each meet design temperature change curve and setting moisture curve by the temperature and humidity in maintenance region.This maintaining process can not only realize the intelligent control of temperature and humidity, and heating and two breeding handguard sections of humidification are separate, it is independent of each other each other between temperature maintenance condition and humidity curing condition, therefore can be according to the different demands of different zones, temperature and humidity, which is precisely controlled, to be realized to each region, can finally significantly improve tunnel-liner quality, concrete strength and surface soundness.
Description
Technical field
The present invention relates to tunnel-liner conservation technology field, and in particular to a kind of tunnel lining concrete maintenance construction work
Skill.
Background technology
At present, at home in constructing tunnel, lining cutting typically uses natural curing, and pole end item is supported using simple water spray
Shield processing.Because above-mentioned maintenance process is had a great influence by external environment and human factor, maintenance effect is bad, it is difficult to ensures lining
The quality and service life of block.
The content of the invention
(1) technical problems to be solved
It is an object of the invention to provide a kind of maintaining process that can significantly improve tunnel-liner quality.
(2) technical scheme
To achieve the above object, the invention provides a kind of tunnel lining concrete maintenance construction technique, by tunnel-liner
It is divided axially into multiple by maintenance section, is each divided into again by maintenance section multiple by maintenance region, is carried out one by one to each by maintenance section
Secondary lining, maintenance and heat and moisture preserving operation, wherein, passed during secondary lining is carried out to the pre-buried temperature of concrete core
Sensor；Conserve and the process of heat and moisture preserving operation is：Monitoring is each conserved the humidity and concrete core temperature in region, simultaneously
Spraying treatment and heat radiation processing are carried out by maintenance region to each by maintenance trolley respectively, the latter is shifted in maintenance trolley
During by maintenance section, by be incubated chassis to it is previous by maintenance section be incubated and moisturizing handle so that each by maintenance region
Temperature and humidity meet design temperature change curve and setting moisture curve.
Preferably, region axially pre-buried multiple temperature sensors are each conserved.
Preferably, it is multiple to be uniformly distributed by maintenance region along the circumference of tunnel-liner.
Preferably, heat radiation processing is carried out by maintenance region to each by multiple electric boiling plates.
Preferably, the electric boiling plate electrical heating temperature is adjustable.
Preferably, atomization process atomizer with high-pressure fluid conveyance conduit is realized.
Preferably, each sprayed by maintenance region by multiple atomizers.
Preferably, the atomizer is 5~10 micron order atomizers.
Preferably, in spraying treatment and heat radiation before processing, first by it is multiple by maintenance regional seal be a relative closure
Space.
(3) beneficial effect
A kind of tunnel lining concrete maintenance construction technique provided by the invention, it is multiple by the way that tunnel-liner is divided axially into
By maintenance section, each it is divided into again by maintenance section multiple by maintenance region, secondary lining, maintenance is carried out by maintenance section to each one by one
Operated with heat and moisture preserving, wherein, to the pre-buried temperature sensor of concrete core during secondary lining is carried out；Maintenance and guarantor
The process of warm moisturizing operation is：Monitoring is each by the humidity and concrete core temperature in maintenance region, while pass through maintenance trolley
Spraying treatment and heat radiation processing are carried out by maintenance region respectively to each, when maintenance trolley shifts to the latter by maintenance section,
By be incubated chassis to it is previous by maintenance section be incubated and moisturizing handle so that each by maintenance region temperature and humidity
Meet design temperature change curve and setting moisture curve, can not only realize the intelligent control of temperature and humidity, and
It is separate due to heating and humidifying two breeding handguard sections, mutually not shadow between temperature maintenance condition and humidity curing condition
Ring, therefore temperature and humidity, which is precisely controlled, can be realized to each region, can finally be shown according to the different demands of different zones
Write and improve tunnel-liner quality, particularly lining concrete intensity, surface soundness；In addition, maintenance trolley and insulation chassis are tight
Being set with lining trolley, the pouring molding and maintenance for making secondary lining are accomplished without any letup, and are incubated chassis while being incubated,
Maintenance trolley can also be simultaneously to next operation heated and be incubated by maintenance section, so that greatly accelerating maintenance
The efficiency of construction.
Brief description of the drawings
Fig. 1 is a kind of schematic diagram of tunnel-liner curing system of the embodiment of the present invention；
Fig. 2 is schematic diagram of the lining concrete core temperature curve with curing temperature curve of the embodiment of the present invention；
Fig. 3 is a kind of schematic diagram of tunnel-liner maintenance trolley of the embodiment of the present invention.
In figure：
1st, it is bowed out；2nd, electric boiling plate；3rd, sprayer unit；4th, sealing device；5th, industrial control cabinet；7th, support frame；8th, skeleton；A, serve as a contrast
Platform building cart；B, maintenance trolley；C, it is incubated chassis.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained on the premise of creative work is not made, belongs to the scope of protection of the invention.
With reference to shown in Fig. 1 and Fig. 2, a kind of tunnel lining concrete maintenance construction technique provided in an embodiment of the present invention is main
If the concrete strength of tunnel-liner and surface soundness are improved by the control of temperature and humidity.This technique is：By tunnel
Road lining cutting is divided axially into multiple by maintenance section, is each divided into again by maintenance section multiple by maintenance region, is conserved one by one to each
Duan Jinhang secondary linings, maintenance and the maintenance of heat and moisture preserving operation three phases, wherein, secondary by lining trolley a progress
To the pre-buried temperature sensor of concrete core during lining cutting, preferably temperature is respectively provided with the vault and haunch opening position of lining cutting
Sensor, and region axially pre-buried multiple temperature sensors are each conserved, preferably poured in lining cutting and 3 are chosen in length range
Ring, the front and rear pre-buried position of two rings from end mould with a distance from be no less than 1m；Conserve and the process of heat and moisture preserving operation is：Monitoring is each supported
The humidity and concrete core temperature in region are protected, while is carried out respectively at spraying by maintenance region to each by maintenance trolley b
Reason and heat radiation processing, when maintenance trolley b shifts to the latter by maintenance section, by being incubated chassis c to previous by maintenance section
Insulation and moisturizing processing are carried out, so as to each meet design temperature change curve by the temperature and humidity in maintenance region and set wet
Spend change curve.
Lining concrete should be poured completion and preferably be selected as starting point, record deadline by lining concrete core temperature record
Take lining concrete pour after the completion of 96 hours, lining concrete core temperature change statistical form in, lining concrete should be indicated
The parameters such as core position, lining cutting mileage, lining section, lining thickness, concrete grade, become with specific reference to concrete core temperature
Law and lining construction rhythm, formulate lining concrete curing temperature curve.
Realized specifically, this technique relies on a kind of tunnel-liner curing system, the system includes what is be arranged before and after
Lining trolley, maintenance trolley and insulation chassis, with reference to shown in figure 3, the maintenance trolley includes bowed out 1 and controller, bowed out 1 shape
The shapes and sizes of shape and size substantially with tunnel-liner inwall are adapted, i.e., bowed out 1 shape is substantially domed, and size is omited
Less than tunnel-liner；Bowed out 1 outside is provided with multiple heaters and multiple sprayer units 3, and heater is used to pass through hot spoke
The form penetrated forms heating to the inwall of tunnel-liner, and sprayer unit 3 is used to spray to the inwall of tunnel-liner, each heating dress
The heating region put is correspondingly provided with a temperature-detecting device for being used to detect tunnel-liner temperature and (is embedded in the temperature of lining cutting core
Spend sensor), the spray area of each sprayer unit 3 is correspondingly provided with a Humidity Detection for being used to detect tunnel-liner humidity and filled
Put, each heater and humidification device are each responsible for heating and humidify a regional area of lining cutting；Temperature-detecting device
It is connected with humidity detector with controller, for giving the temperature and humidity information transfer of the regional detected to control
Device, according to the concrete condition of tunnel-liner different zones, controller controls the heating-up temperature of each heater and each spray again
The spray amount of mist device 3, so as to entirely reach default temperature and humidity by the tunnel-liner in maintenance region and continue to set
Duration.
From the foregoing, it will be observed that heating that this maintaining process is arranged by compartmentalization and humidification, according to concrete core temperature change
Rule and lining construction rhythm, lining concrete curing temperature curve is formulated, meets lining cutting curing concrete internal-external temperature difference requirement,
Coordinate corresponding with each region temperature-detecting device and humidity detector, can not only realize the intelligence control of temperature and humidity
System, and it is separate due to heating and humidifying two breeding handguard sections, between temperature maintenance condition and humidity curing condition each other
It is independent of each other, therefore temperature and humidity, which is precisely controlled, can be realized to each region, finally according to the different demands of different zones
Tunnel-liner quality, particularly lining concrete intensity, surface soundness can be significantly improved；In addition, maintenance trolley and insulation
Chassis follows lining trolley setting closely, and the pouring molding and maintenance for making secondary lining are accomplished without any letup, and is incubated chassis and is being incubated
While, maintenance trolley can also be simultaneously to next operation heated and be incubated by maintenance section, so that greatly adding
The fast efficiency of maintenance construction.
It is multiple to be uniformly distributed by maintenance region along the circumference of tunnel-liner, it is circumferentially distributed it is multiple by maintenance region by centre
It is stepped distribution to both sides, because the lining cutting region at different height has different temperature and humidity curing requirements, so
Be advantageous to realize for the tunnel-liner in different height region and accurately conserve, special temperature is formulated for each maintenance region
Controlling curve and humid control curve, to reach optimal maintenance effect.
Wherein, multiple atomising devices are preferably and are uniformly distributed in bowed out 1 outside, so the direct face of each atomising device institute
To the area of nebulization region be all identical, whole tunnel-liner is all uniformly humidified.
In certain embodiments, heater is electric boiling plate 2, by multiple electric boiling plates 2 to each by maintenance region
Heat radiation processing is carried out, electric boiling plate electrical heating temperature is adjustable, and bowed out 1 lateral surface is spliced by multiple electric boiling plates 2, i.e.,
, each other can be with per mutually at a certain angle between two adjacent heating plates in the circumferential direction of tunnel-liner
Sealing welding connects, and spliced entirety is substantially domed, is adapted with the shape with tunnel-liner.In electric boiling plate 2
The settable skeleton 8 being welded by steel I-beam in side, to install and support each electric boiling plate 2.
Specifically, sprayer unit 3 includes atomizer and the high-pressure fluid conveyance conduit that is connected with atomizer, at atomization
Reason high-pressure fluid conveyance conduit coordinates atomizer to realize that atomizer and high-pressure fluid conveyance conduit are arranged at electrical heating
The outside of plate 2；Atomizer is preferably 5~10 micron order atomizers, coordinates high-pressure fluid, forms minimum atomizing particle,
So as to avoid the generation of condensation, the uniformity of humidification is improved.
In addition, this maintenance trolley also includes support frame 7, support frame 7 can be welded by square steel and/or I-steel, be led to
Cross welding or bolted mode is connected with the skeleton 8 of bowed out inner side, so as to support the inner side for being arranged on bowed out 1, support frame 7
Bottom be provided with road wheel, road wheel walking is in orbit, and road wheel is furnished with motor, and motor is connected with the traction drive, from
And drive this maintenance trolley to be advanced in tunnel, realize the maintenance to whole section of tunnel-liner.
Support frame 7 preferably has platform, and controller is arranged on platform, and controller can be integrated in industrial control cabinet 5, industrial control cabinet
The control button such as settable startup, pause and stopping outside 5, for quickly controlling the operation of complete machine；It can be set in industrial control cabinet 5 specific
Control panel, for controlling and setting operational factor and start-stop time for each heater and humidification device, finally
Form efficient intelligent control.
In certain embodiments, bowed out 1 edge is provided with sealing device 4, i.e., at bowed out 1 axial both ends and base
The sealing device 4 is set, and sealing device 4, in spraying treatment and heat radiation before processing, first will in sealing contact with tunnel-liner
Multiple spaces by maintenance regional seal for a relative closure, provided safeguard for maintenance trolley control of temperature and humidity.
Further, sealing device 4 can be air bag, after inflation, it is possible to achieve good between tunnel-liner
Good sealing, and finish in one section of tunnel-liner maintenance, need to be moved to next section when being conserved, air bag need to only be carried out
Deflation, it is easy to operate, efficient.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, only tunnel ventilation dual-active
The embodiment of plug system, rather than its limitations, and for single-piston Tunnel Ventilation System, integrated closed system, tunnel
Exhaust fan is set, equally can be according to the similar setting of size of equipment；Although the present invention is carried out with reference to the foregoing embodiments
Detailed description, it will be understood by those within the art that：It still can be to the technology described in foregoing embodiments
Scheme is modified, or carries out equivalent substitution to which part technical characteristic；And these modifications or replacement, do not make corresponding
The essence of technical scheme departs from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (9)
1. a kind of tunnel lining concrete maintenance construction technique, it is characterised in that tunnel-liner is divided axially into multiple conserved
Section, be each divided into again by maintenance section it is multiple by maintenance region, one by one to each by maintenance section progress secondary lining, maintenance and insulation
Moisturizing operates, wherein, to the pre-buried temperature sensor of concrete core during secondary lining is carried out；Maintenance and heat and moisture preserving
The process of operation is：Monitoring is each by the humidity and concrete core temperature in maintenance region, while by maintenance trolley to each
Spraying treatment and heat radiation processing are carried out by maintenance region respectively, when maintenance trolley shifts to the latter by maintenance section, pass through guarantor
Warm chassis is incubated and moisturizing is handled to previous by maintenance section, so as to each be met and set by the temperature and humidity in maintenance region
Determine temperature variation curve and setting moisture curve.
2. tunnel lining concrete maintenance construction technique according to claim 1, it is characterised in that each by maintenance region
Axially pre-buried multiple temperature sensors.
3. tunnel lining concrete maintenance construction technique according to claim 1, it is characterised in that multiple by maintenance region
It is uniformly distributed along the circumference of tunnel-liner.
4. tunnel lining concrete maintenance construction technique according to claim 1, it is characterised in that pass through multiple electrical heating
Plate carries out heat radiation processing to each by maintenance region.
5. tunnel lining concrete maintenance construction technique according to claim 4, it is characterised in that the electric boiling plate electricity
Heating-up temperature is adjustable.
6. tunnel lining concrete maintenance construction technique according to claim 1, it is characterised in that the atomization process by
High-pressure fluid conveyance conduit coordinates atomizer to realize.
7. tunnel lining concrete maintenance construction technique according to claim 6, it is characterised in that each by maintenance region
Sprayed by multiple atomizers.
8. tunnel lining concrete maintenance construction technique according to claim 6, it is characterised in that the atomizer is
5~10 micron order atomizers.
9. tunnel lining concrete maintenance construction technique according to claim 1, it is characterised in that in spraying treatment and heat
Before radiation treatment, first by multiple spaces by maintenance regional seal for a relative closure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710731335.4A CN107387124A (en) | 2017-08-23 | 2017-08-23 | Tunnel lining concrete maintenance construction technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710731335.4A CN107387124A (en) | 2017-08-23 | 2017-08-23 | Tunnel lining concrete maintenance construction technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107387124A true CN107387124A (en) | 2017-11-24 |
Family
ID=60346607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710731335.4A Pending CN107387124A (en) | 2017-08-23 | 2017-08-23 | Tunnel lining concrete maintenance construction technique |
Country Status (1)
| Country | Link |
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| CN (1) | CN107387124A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108068206A (en) * | 2017-12-19 | 2018-05-25 | 中铁局集团天津建设工程有限公司 | The spray pipe network support device of concrete curing and its automation curing system |
| CN108678800A (en) * | 2018-07-12 | 2018-10-19 | 中交第二公路工程局有限公司 | A kind of tunnel health dust-extraction unit and dust removal method |
| CN109505627A (en) * | 2018-12-04 | 2019-03-22 | 三峡大学 | A kind of multifunctional intellectual tunnel lining concrete automatic maintenance trolley and method |
| CN109682503A (en) * | 2019-01-11 | 2019-04-26 | 中铁十一局集团第四工程有限公司 | A kind of tunnel double-lining concrete pressure monitoring system and its application method |
| CN110656957A (en) * | 2019-09-26 | 2020-01-07 | 苏锦生 | Tunnel inner face lining concrete atomization maintenance vehicle for tunnel construction |
| CN111365023A (en) * | 2020-03-30 | 2020-07-03 | 安徽华骅桥梁设备制造有限公司 | Automatic maintenance equipment of high-efficient constant temperature and humidity tunnel |
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| CN202047830U (en) * | 2011-05-24 | 2011-11-23 | 中铁十二局集团第三工程有限公司 | Tunnel secondary lining concrete curing trolley |
| CN104712345A (en) * | 2015-01-31 | 2015-06-17 | 夏玉军 | Tunnel lining concrete heat preserving and maintaining construction device |
| CN104963698A (en) * | 2015-06-25 | 2015-10-07 | 山东大学 | Heat-preservation moisture-preservation life-preserving device for tunnel lining concrete and construction method thereof |
| CN104975862A (en) * | 2015-07-03 | 2015-10-14 | 中铁十四局集团有限公司 | Full-automatic tunnel concrete lining maintenance device and use method thereof |
| CN204754944U (en) * | 2015-07-03 | 2015-11-11 | 中铁十四局集团有限公司 | Tunnel concrete lining independently maintain equipment entirely |
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2017
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Patent Citations (5)
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| CN202047830U (en) * | 2011-05-24 | 2011-11-23 | 中铁十二局集团第三工程有限公司 | Tunnel secondary lining concrete curing trolley |
| CN104712345A (en) * | 2015-01-31 | 2015-06-17 | 夏玉军 | Tunnel lining concrete heat preserving and maintaining construction device |
| CN104963698A (en) * | 2015-06-25 | 2015-10-07 | 山东大学 | Heat-preservation moisture-preservation life-preserving device for tunnel lining concrete and construction method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108068206A (en) * | 2017-12-19 | 2018-05-25 | 中铁局集团天津建设工程有限公司 | The spray pipe network support device of concrete curing and its automation curing system |
| CN108678800A (en) * | 2018-07-12 | 2018-10-19 | 中交第二公路工程局有限公司 | A kind of tunnel health dust-extraction unit and dust removal method |
| CN109505627A (en) * | 2018-12-04 | 2019-03-22 | 三峡大学 | A kind of multifunctional intellectual tunnel lining concrete automatic maintenance trolley and method |
| CN109682503A (en) * | 2019-01-11 | 2019-04-26 | 中铁十一局集团第四工程有限公司 | A kind of tunnel double-lining concrete pressure monitoring system and its application method |
| CN110656957A (en) * | 2019-09-26 | 2020-01-07 | 苏锦生 | Tunnel inner face lining concrete atomization maintenance vehicle for tunnel construction |
| CN111365023A (en) * | 2020-03-30 | 2020-07-03 | 安徽华骅桥梁设备制造有限公司 | Automatic maintenance equipment of high-efficient constant temperature and humidity tunnel |
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Address after: 100038 East auxiliary building, 10 Fuxing Road, Beijing, Haidian District Applicant after: CHINA RAILWAY ECONOMIC AND PLANNING RESEARCH INSTITUTE Co.,Ltd. Applicant after: CHINA RAILWAY FIFTH SURVEY AND DESIGN INSTITUTE GROUP Co.,Ltd. Applicant after: F.S.D.I.G CONSTRUCTION MACHINERY Co.,Ltd. Address before: 100038 East auxiliary building, 10 Fuxing Road, Beijing, Haidian District Applicant before: CHINA RAILWAY ECONOMIC AND PLANNING Research Institute Applicant before: CHINA RAILWAY FIFTH SURVEY AND DESIGN INSTITUTE GROUP Co.,Ltd. Applicant before: F.S.D.I.G CONSTRUCTION MACHINERY Co.,Ltd. |
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Effective date of registration: 20191011 Address after: Room 501, 503-506, 510, 517-523, 601-605, Dongfu Building, 10 Fuxing Road, Haidian District, Beijing, 100036 Applicant after: CHINA RAILWAY ECONOMIC AND PLANNING RESEARCH INSTITUTE Co.,Ltd. Applicant after: CHINA RAILWAY FIFTH SURVEY AND DESIGN INSTITUTE GROUP Co.,Ltd. Applicant after: F.S.D.I.G CONSTRUCTION MACHINERY Co.,Ltd. Applicant after: CARS RAILWAY ENGINEERING Research Institute Address before: 100038 East auxiliary building, 10 Fuxing Road, Beijing, Haidian District Applicant before: CHINA RAILWAY ECONOMIC AND PLANNING RESEARCH INSTITUTE Co.,Ltd. Applicant before: CHINA RAILWAY FIFTH SURVEY AND DESIGN INSTITUTE GROUP Co.,Ltd. Applicant before: F.S.D.I.G CONSTRUCTION MACHINERY Co.,Ltd. |
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Application publication date: 20171124 |
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