CN103994752B - Automatic measurement and guidance system and automatic measurement and guidance method related to pipe pushing construction - Google Patents
Automatic measurement and guidance system and automatic measurement and guidance method related to pipe pushing construction Download PDFInfo
- Publication number
- CN103994752B CN103994752B CN201410246863.7A CN201410246863A CN103994752B CN 103994752 B CN103994752 B CN 103994752B CN 201410246863 A CN201410246863 A CN 201410246863A CN 103994752 B CN103994752 B CN 103994752B
- Authority
- CN
- China
- Prior art keywords
- tunnel
- pipe
- prism
- measurement
- push
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C1/00—Measuring angles
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention relates to the field of construction and tunnel measurement technique, and particularly relates to an automatic measurement and guidance system and an automatic measurement and guidance method related to pipe pushing construction. The automatic measurement and guidance system comprises a full-automatic total station instrument, a wireless radio station, remote control equipment, a computer, an application tool, a pipe pusher, an MTG-T optical target, a prism, a sensor and a control cabinet, wherein the MTG-T optical target is arranged on the head of the pipe pusher; during the pipe pushing process, the whole pipe moves forwards, a travel sensor is arranged on the top of a tunnel portal, a forward vision prism and a reference prism are arranged on the upper wall of an inner cavity of a second tunnel pipe joint of the pipe, and can continuously move according to the pipe joint of the pipe, a back vision prism is arranged on the upper wall of an inner cavity of previous pipe joint of the tail end pipe joint of the pipe, and the total station instrument is arranged at the central position of an inner cavity of the front end pipe joint of the pipe. Compared with the prior art, the automatic measurement and guidance system has the advantages of alleviating the labor intensity of workers, improving the working efficiency and the construction precision of the pipe pushing construction, as well as analyzing and treating, timely controlling and timely making a decision through real-time data, so that the through accuracy between two wells is guaranteed.
Description
[technical field]
The present invention relates to construct and tunnel survey technical field, a kind of specifically automatic measurement about jacking construction
Guidance system and method.
[background technology]
It is just necessary in order to ensure the correct insertion of every excavation face energy and meet design requirement in push pipe and constructing tunnel
As constructing tunnel tunnels the axis and elevation of the real time measure tunneling direction, this measurement is called tunnel survey.Current underground tunnel
Road class engineering construction measuring method has the conventional pilot collimation method for being suitable for bored tunnel；The shield for being suitable for subway shield tunnel construction is automatic
Measurement guidance system；Below can be transmitted in type tunnel Nei Zuo control point as tunnel extends, so as to
Ensure tunnel holing through precision.
Jacking construction is that whole pipeline section is until the tube coupling ability after insertion in whole tunnel with subway shield tunnel construction difference
Settle out.Traditional underground pipe-driving survey gets off survey to front end push pipe head by translocation on well every time, middle once larger survey to occur
Amount error must resurvey, and waste time and energy, and be easily caused the phenomenons such as front end tube coupling generation cultivation head, off normal.Particularly push pipe is applied
Work need to frequently change head, and e measurement technology is even more important.The automatic guiding measuring system of existing push pipe is made up of multiple stage total powerstation,
Cost of equipment is too high, and simultaneity factor need to install measurement apparatus in each website of whole piece pipeline, more complicated, have impact on the matter of construction
Amount.
[content of the invention]
The invention aims to overcome drawbacks described above, according to automatic measurement technology, there is provided a kind of simple structure, automatically
Measurement guidance system, under the dynamic of push pipe jacking, continuous automatic tracing and measuring solves push pipe manual measurement in prior art
Waste time and energy, easily error, causes head to wander off, final piercing error transfinites etc. causes the situation of unnecessary economic loss,
So as to reach the purpose for further improving construction quality and progress.
To achieve these goals, with reference to metro shield automatic measurement guidance system, according to the characteristic of jacking construction measurement
Necessary improvement is carried out, a kind of automatic measurement guidance system about jacking construction, including full-automatic total powerstation, radio is designed
The software such as platform and remote control equipment, computer and application tool MAPGIS or DBASE or Excel, push-bench, MTG-T light targets, rib
Mirror, sensor, control chamber, the head of push-bench is provided with MTG-T light targets, and in jacking construction, whole piece pipeline is mobile advance,
Stroke sensor is provided with the top of tunnel portal, in the inner chamber upper wall of second tunnel tube coupling of pipeline forward sight prism and reference are provided with
Prism, constantly moves according to the tube coupling on pipeline, and in the inner chamber upper wall of the previous section tube coupling of pipe end tube coupling backsight is provided with
Prism, total powerstation is located at the middle position of pipeline front end tube coupling inner chamber, is provided with some in the bottom of tube coupling inner chamber and tunnel portal
Individual radio set, when total powerstation works, measures head advanced positions delta data, by Qian Hou rib visor by MTG-T light targets
The track that push-bench is constantly advanced, including the three-dimensional of horizontal angle, vertical angle and the length of side and front-and rear-view prism are measured with reference to visor
Coordinate, by stroke sensor the distance of push-bench push pipe is measured, and output signal is passed through radio set sending signal by total powerstation
It is transferred to the input signal end of computer, computer and application tool control total powerstation operation.Described total powerstation is provided with
MTB11 control chambers, described control chamber includes DC source 12V, control circuit and wireless transmit and receiving circuit.Described meter
Calculation machine interface is provided with control chamber MTB11, and described control chamber includes wireless transmit and receiving circuit.Before and after described prism it
Between set up a reference prism, guaranteed by two points one linear distance formula push pipe front portion along its design centre line height jacking,
Position is accurate, the change of rear end slope control.
A kind of method of the automatic measurement guidance system about jacking construction：By using MTG-L push pipe automatic guides system
System, can in real time obtain deviation and its attitude of the push-bench relative to Tunnel Design centrage, be push-bench in strict accordance with design road
Line jacking provides important markings, it is ensured that the quality of constructing tunnel and the accurate insertion in tunnel, the method is comprised the following steps：
A. the data of tunnel website and backsight in tunnel starting well are surveyed, is observed by total powerstation, laser target is with head row
Enter position to be continually changing, the tunnel pipelines Center stake is the measurement baseline of push pipe, survey station point and backsight are fixed on hole external position
Motionless summit, used as the bench mark of push pipe elevation carrection, measurement result is with the speed of 12s/ time by total powerstation and radio
Platform transmits a signal to industrial computer, sets up the orientation baseline of automatic guide measuring system, that is, sets up survey station；
B. the inner chamber upper wall in second tunnel tube coupling is provided with forward sight prism and reference prism, in the previous section of final section
The inner chamber upper wall of tunnel tube coupling is provided with rearscope, is constantly advanced by total powerstation and three prism conjunction measuring push-bench pipes
Track, including horizontal angle, vertical angle and the length of side, guarantee push pipe front portion along its design centre line by two points one linear distance formula
Height jacking, position is accurate, and rear end slope control change, track will be used for follow-up phase and obtain survey station and backsight three-dimensional coordinate,
It is 42s or so that period measurement will increase, and measurement result transmits a signal to industrial computer by radio set and total powerstation, real
When measure head original plane and altitude data, as basic parameter a part participate in software resolve；
C. after tunnel pipelines one segment distance of jacking, when existing survey station can not be directly observed head prism, need to be surveyed
Stand reach, survey station is moved in tunnel, be provided with stroke sensor at the top of tunnel portal, period measurement is 42s or so, measurement knot
Fruit transmits a signal to industrial computer by total powerstation and radio set, and system Automatic solution removes station data, after removing behind station directly
Depending on, you can quickly recover survey station, measure；
D. with head jacking, the continuous extension of tunnel pipelines, each parts of automatic guiding system are all corresponding toward reach
It is dynamic, while survey station moves forward, backsight is moved in Tunnel, the survey station point being fixed on tube coupling is constantly moved with tube coupling, this rank
All installed in the range of head 140m, survey station point still presses the 2nd tunnel tube coupling inner chamber upper wall to measuring apparatus in section Tunnel
Forward sight prism and reference prism are provided with, in the previous section inner chamber upper wall of final section rearscope arrangement is provided with, eliminated some
The vertical error that the broken line that individual total powerstation is constituted causes, period measurement is 42 seconds or so, and measurement result is by total powerstation and wirelessly
Radio station, transmits a signal to industrial computer, and real time data is carried out finishing analysis, forms result parameter, instead by industrial computer automatically
Push pipe head display screen is fed to, the correction parameter in display screen helps push-bench driver fast and accurately to make relative measure,
So as to instruct jacking construction.
The present invention compared with the existing technology, has an advantage in that：Personnel labor intensity can be significantly reduced, jacking construction is improved
Work efficiency and construction precision；Shown by real-time data analysis process, rapid feedback, engineering state, real-time control, it is convenient
Field Force's Real-time Decision, so as to finally ensure the penetrating accuracy between two wells.
[description of the drawings]
Fig. 1 is the structural representation of the invention；
Fig. 2 is the computer software workflow diagram of the invention；
In Fig. 1：1st, MTL laser targets or MTG-T laser targets 2, MTB11 control chambers 3, MTB21 control chambers 4, MTB22
Control chamber 5, TS15A total powerstations 6, rearscope and dipmeter 7, forward sight prism 8, reference prism 9, stroke sensing
Device 10, industrial computer and control chamber 11, tunnel tube coupling；
Figure of abstract of the specified Fig. 1 as the present invention.
[specific embodiment]
Below in conjunction with the accompanying drawings the invention will be further described, the structure and computer of this device and application tool, bag
It is very clearly for including the three-dimensional coordinate of front-and rear-view prism, the two points one linear distance formula people professional to this.This technology
Innovative point is the combination of known technology, is conducive to the push pipe of forward sight prism highly to design correctly using reference prism, reduces and misses
Difference, is conducive to controlling the change of the rearscope gradient, and the curved section of pipeline that several are constituted is oriented to using one-stop automatic measurement
System, reduces labor intensity, and cost is reduced, it is to avoid the vertical error that broken line causes.It should be appreciated that concrete reality described herein
Example is applied only to explain the present invention, be not intended to limit the present invention.
Embodiment 1
As shown in Figure 1 and Figure 2, push pipe method for automatic measurement is as follows：Zero-bit Data is manually input into, centerline data is designed
And field measurement data, measured database is automatically imported, so as to calculate the items such as push-bench real-time attitude, design axis off normal
Parameter, so as to guiding construction.
Above-mentioned push pipe method for automatic measurement concrete grammar step is as follows：
A. system assembles debugging, the relevant devices such as reference prism, connection cable, total powerstation, industrial computer are installed, debugging
The preparations such as communication are finished, and see accompanying drawing 1；
B. relevant parameter is input into, by the indices parameter typing electricity such as design centerline data, zero-bit Data, predetermined deviation value
Brain；
C. automatic measurement, automatic motor total powerstation is carried out head cursor measurement, is transmitted automatically by total powerstation, will be counted in real time
According to being transferred to industrial computer；
D. data analysiss are arranged, and real time data is carried out finishing analysis by industrial computer automatically, forms result parameter, is fed back to
Push pipe head display screen, so as to instruct jacking construction.
Embodiment 2：
As a example by arranging pipe-jacking project outside the tail water of Kunming.It is Kunming Dianchi lake waste water treatment project that pipe-jacking project is arranged outside the tail water of Kunming
One of, 11 active wells point, 10 sections of jacking circuits are completely set, wherein most long top section 9# well-pumping plant # wells top section total length 1.2 is public
In, belong to extra long distance jacking construction, because tube coupling is, with the extension follow-up of top section, to be belonging to move during push pipe jacking construction
State is measured and it is necessary to which unidirectional jacking is to well of appearing, and the required precision to tunnel survey is higher.Tube coupling is often saved from calling in, is installed
Push up the free time for there are 2 hours to be measured in real time to opening, after pipe jacking tunnel jacking distance is longer, traditional method can not be protected
Card completes head center line survey in the case of not malfunctioning within the limited time, therefore is carried out using this method.
Pipe-jacking project is the accurate of guarantee tube coupling relative position, has strict demand, traditional measurement side to the intermittent time
Method can guarantee that the accuracy and actual effect of long range measurements due to turning station time and environmental effect, not necessarily.
Checked using manual measurement while automatic guide measuring method, so as to further determine that the excellent of this method lacks
Point, precision, time etc..
Claims (1)
1. a kind of guidance method of the automatic measurement guidance system about jacking construction：The guidance method is automatic by using push pipe
Measurement guidance system, can in real time obtain deviation and its attitude of the push-bench relative to Tunnel Design centrage, be that push-bench is strict
Important markings are provided according to design route jacking, it is ensured that the quality of constructing tunnel and the accurate insertion in tunnel, push pipe is automatic
Measurement guidance system includes full-automatic total powerstation, radio set and remote control equipment, computer and application tool MAPGIS or DBASE
Or Excel, push-bench, MTG-T light targets, forward sight prism, reference prism, rearscope, stroke sensor, control chamber, push-bench
Head be provided with MTG-T light targets, in jacking construction, whole piece pipeline be it is mobile advance, stroke is provided with the top of tunnel portal
Sensor, is provided with forward sight prism and reference prism, according to the tube coupling on pipeline in the inner chamber upper wall of second tunnel tube coupling of pipeline
Constantly move, in the inner chamber upper wall of the previous section tube coupling of pipe end tube coupling rearscope is provided with, total powerstation is located at before pipeline
The middle position of end pipe section inner chamber, in the bottom of tube coupling inner chamber and tunnel portal several radio sets, total powerstation work are provided with
When, head advanced positions delta data is measured by MTG-T light targets, measure push-bench regarding prism and reference prism by forward and backward
The track constantly advanced, including horizontal angle, vertical angle and the length of side and the forward and backward three-dimensional coordinate regarding prism, by stroke sensor
Output signal is transferred to the distance of measurement push-bench push pipe, total powerstation the input letter of computer by radio set sending signal
Number end, computer and application tool control total powerstation operation, the method comprises the following steps：
A. the data of survey station point and backsight observation station in tunnel starting well, are observed by total powerstation, and MTG-T light targets are with head row
Enter position to be continually changing, tunnel pipelines Center stake is the measurement baseline of push pipe, survey station point and backsight observation station are fixed on position outside hole
Used as the bench mark of push pipe elevation carrection, measurement result is with the speed of 12s/ time by total powerstation and wireless on summit when putting motionless
Radio station transmits a signal to industrial computer, sets up the orientation baseline of push pipe automatic measurement guidance system, that is, sets up survey station point；
B. the inner chamber upper wall in second tunnel tube coupling is provided with forward sight prism and reference prism, in the previous section tunnel of final section
The inner chamber upper wall of tube coupling is provided with rearscope, the rail constantly advanced by total powerstation and three prism conjunction measuring push-bench pipes
Mark, including horizontal angle, vertical angle and the length of side, guarantee that push pipe is anterior high along its design centre line by two points one linear distance formula
Degree jacking, position is accurate, the change of rear end slope control, and track will be used for follow-up phase and obtain survey station point and backsight observation station three-dimensional
Coordinate, it is 42s or so that period measurement will increase, and measurement result transmits a signal to industrial electro by radio set and total powerstation
Brain, in real time the original plane and altitude data of measurement head, participates in software and resolves as a basic parameter part；
C. after tunnel pipelines one segment distance of jacking, when existing survey station point can not be directly observed head prism, survey station need to be carried out
Point reach, survey station point is moved in tunnel, and stroke sensor is provided with the top of tunnel portal, and period measurement is 42s or so, is measured
As a result by total powerstation and radio set, industrial computer is transmitted a signal to, system Automatic solution removes station data, is removed behind station directly
Backsight, you can quickly recover survey station point, measure；
D. with head jacking, the continuous extension of tunnel pipelines, each parts of automatic measurement guidance system are all corresponding toward reach
It is dynamic, while survey station point moves forward, backsight observation station is moved in Tunnel, survey station point on tube coupling is fixed on tube coupling not offset
Dynamic, all installed in the range of head 140m, survey station point still presses second tunnel tube coupling to measuring apparatus in this stage Tunnel
Inner chamber upper wall is provided with forward sight prism and reference prism, and in the previous section inner chamber upper wall of final section rearscope arrangement is provided with, and disappears
Except several vertical errors that the broken line that total powerstation is constituted causes, period measurement are 42 seconds or so, measurement result passes through whole station
Instrument and radio set, transmit a signal to industrial computer, and real time data is carried out finishing analysis, forms result by industrial computer automatically
Parameter, feeds back to push pipe head display screen, and the correction parameter in display screen helps push-bench driver fast and accurately to make relatively
Measure, so as to instruct jacking construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410246863.7A CN103994752B (en) | 2014-06-05 | 2014-06-05 | Automatic measurement and guidance system and automatic measurement and guidance method related to pipe pushing construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410246863.7A CN103994752B (en) | 2014-06-05 | 2014-06-05 | Automatic measurement and guidance system and automatic measurement and guidance method related to pipe pushing construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103994752A CN103994752A (en) | 2014-08-20 |
| CN103994752B true CN103994752B (en) | 2017-04-26 |
Family
ID=51308984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410246863.7A Active CN103994752B (en) | 2014-06-05 | 2014-06-05 | Automatic measurement and guidance system and automatic measurement and guidance method related to pipe pushing construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103994752B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104251688B (en) * | 2014-09-25 | 2016-08-24 | 陕西华山路桥工程有限公司 | Pipe-jacking project utilizes laser straight line orientation survey engineering method |
| CN105202261A (en) * | 2015-11-04 | 2015-12-30 | 上海十三冶建设有限公司 | Device for measuring and controlling jacking direction during pipe jacking and usage method of device |
| CN106123776B (en) * | 2016-07-08 | 2019-03-01 | 上海市政建设有限公司 | A kind of push pipe intelligence jacking measuring system and measurement method |
| CN108334689B (en) * | 2018-01-29 | 2021-11-09 | 四川科宏石油天然气工程有限公司 | Method for automatically realizing longitudinal design of pipeline |
| CN108625302B (en) * | 2018-05-11 | 2020-06-02 | 东南大学 | Adjusting device for box culvert jacking longitudinal gradient and monitoring control method thereof |
| CN110397789B (en) * | 2019-07-08 | 2020-12-25 | 中铁创通建设集团有限公司 | Guide rod auxiliary device for artificial pipe jacking and use method thereof |
| CN111197486A (en) * | 2020-01-18 | 2020-05-26 | 广州鑫唐夏信息科技有限公司 | Push bench guiding method based on machine vision |
| CN112902845B (en) * | 2021-03-04 | 2022-07-08 | 黄河勘测规划设计研究院有限公司 | Track type pipe jacking automatic guiding method |
| CN114061650B (en) * | 2021-09-22 | 2023-01-17 | 中国地质大学（武汉） | Intelligent monitoring system and method for pipe jacking construction |
| CN114111759A (en) * | 2021-11-04 | 2022-03-01 | 中国煤炭科工集团太原研究院有限公司 | Mine positioning robot and positioning method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100504029C (en) * | 2004-02-18 | 2009-06-24 | 华中科技大学 | Electronic laser target of tunnel digging construction guiding system |
| CN102937437A (en) * | 2012-11-21 | 2013-02-20 | 中国铁建重工集团有限公司 | Total station prism group, tube push bench guide system for tunnel construction and guide method of tube push bench guide system |
| CN203422091U (en) * | 2013-06-06 | 2014-02-05 | 上海米度测量技术有限公司 | Device for dynamically measuring positions and attitudes of push bench in real time |
| CN103322989A (en) * | 2013-06-06 | 2013-09-25 | 上海米度测量技术有限公司 | Measuring device and method of dynamic real-time measurement of position and posture of pipe pushing jack |
| CN204007587U (en) * | 2014-06-05 | 2014-12-10 | 中铁上海工程局集团有限公司 | A kind of automatic measurement guidance system about jacking construction |
-
2014
- 2014-06-05 CN CN201410246863.7A patent/CN103994752B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103994752A (en) | 2014-08-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103994752B (en) | Automatic measurement and guidance system and automatic measurement and guidance method related to pipe pushing construction | |
| CN204007587U (en) | A kind of automatic measurement guidance system about jacking construction | |
| CN107300369B (en) | Shield/TBM hob abrasion measurement device and measurement method | |
| CN104878701B (en) | Underneath pass existing railway bridge and culvert jacking horizontal guiding and deviation correcting system | |
| CN102953304B (en) | Precision measurement control method of metro track structure construction | |
| CN106123776B (en) | A kind of push pipe intelligence jacking measuring system and measurement method | |
| CN108444432B (en) | Existing railway line control network and track line shape synchronous measurement method | |
| CN102937437A (en) | Total station prism group, tube push bench guide system for tunnel construction and guide method of tube push bench guide system | |
| CN102778226B (en) | Calibration method for waist line of underground long-distance tunnel | |
| CN109931958B (en) | UWB-based coal mining machine working face end calibration device and method | |
| CN110017817B (en) | Coal mine roadway navigation positioning method and device based on roof characteristics | |
| CN104762883A (en) | Matching measurement method used during bridge precasting with stud matching method | |
| CN205300569U (en) | Tunnel deformation monitoring device and system | |
| CN102095401A (en) | Long-distance shield tunnel breakthrough survey method | |
| CN109115176B (en) | Movable three-dimensional laser scanning system | |
| CN105973141A (en) | Device and method of measuring shield tunnel segment dislocation | |
| CN111089542A (en) | Landslide surface and deep displacement combined monitoring system and method | |
| CN103884324B (en) | The orientation measurement method of underground pipeline jacking crossing construction | |
| CN105628000A (en) | Mine shaft coordinate transmitting and measuring method | |
| CN102518013A (en) | Method for construction of measurement and pavement of GRP (ground reference point) of ballastless track reference network | |
| CN106066177A (en) | Shield automatic guiding system measures manual review's method | |
| CN203893840U (en) | High-precision fixed composite level gauge | |
| CN107644119B (en) | Automatic half-porosity calculation method based on three-dimensional scanning point cloud | |
| CN105652866A (en) | Automatic measurement and error correcting system for heading machine | |
| CN105627985A (en) | Mine shaft elevation transmission method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 200436, No. three, 278 Road, Zhabei District, Shanghai Co-patentee after: China Railway Municipal Environmental Construction Co.,Ltd. Patentee after: SHANGHAI CIVIL ENGINEERING Co.,Ltd. OF CREC Address before: 200436, No. three, 278 Road, Zhabei District, Shanghai Co-patentee before: China Railway Shanghai Engineering Bureau Group Municipal Engineering Co.,Ltd. Patentee before: SHANGHAI CIVIL ENGINEERING Co.,Ltd. OF CREC |
|
| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200527 Address after: 200331 A District, building 88, Lane 3, Wuwei Road, Shanghai, Putuo District, China Patentee after: China Railway Municipal Environmental Construction Co.,Ltd. Address before: 200436, No. three, 278 Road, Zhabei District, Shanghai Co-patentee before: China Railway Municipal Environmental Construction Co.,Ltd. Patentee before: SHANGHAI CIVIL ENGINEERING Co.,Ltd. OF CREC |
|
| TR01 | Transfer of patent right |