CN101702292B - Tunnel boring machine two-dimensional loading analog test device - Google Patents
Tunnel boring machine two-dimensional loading analog test device Download PDFInfo
- Publication number
- CN101702292B CN101702292B CN2009102464300A CN200910246430A CN101702292B CN 101702292 B CN101702292 B CN 101702292B CN 2009102464300 A CN2009102464300 A CN 2009102464300A CN 200910246430 A CN200910246430 A CN 200910246430A CN 101702292 B CN101702292 B CN 101702292B
- Authority
- CN
- China
- Prior art keywords
- test specimen
- test
- bearing plate
- cutter
- machine
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a tunnel boring machine two-dimensional loading analog test device. A spherical pad used by the device is connected with a common cross beam of a pressure machine through bolts, two ends of the vertical loading tension transfer column of an installment axis type loading sensor are separately provided with the spherical pad and a cutter holder, cutters are fixed on the cutter holder though bolts, two left and right ends of a loading holder are separately provided with displacement sensors, the displacement sensors and axis type loading sensor are connected with a computer through a data sampling apparatus; a horizontal lifting jack is fixed with a left lateral plate through bolts, a horizontal loading tension transfer column is fixed on the left side of a right lateral plate, four draw bars are used to connect the right lateral plate and the left lateral plate, the piston ends of the horizontal loading tension transfer column and the horizontal lifting jack are separately provided with a test piece right bearing plate and a test piece left bearing plate; and a high speed CCD camera is mounted at the front of a test piece and is connected with a computer through a data line. The device has simple structure, convenient operation, low cost, rich test data, complete test result and high reliability and is easy to process.
Description
Technical field
The invention belongs to the rock mechanics experiment technical field, be particularly related to the experimental provision of the broken rock process of a kind of simulation tunnel development machine (TBM) two dimension, can study the rock tunnel(ling) machine rock breaking mechanism by this device, for the preparation of construction and the construction parameter of long tunnel select to provide foundation, in addition, this device can also provide a kind of new laboratory facilities for rock mass fracture research.
Background technology
TBM is the english abbreviation of rock tunnel(ling) machine, is a kind of special tunnel machine at solid rock.The rock tunnel(ling) machine tunneling process comprises: by thrust hobboing cutter is invaded on the face in the rock mass, hobboing cutter on the rotating band movable knife disc of cutterhead rolls rock mass, thereby the rock of face is peeled off with the fragment shape, so rock tunnel(ling) machine special advantages such as tool cavitation quality is good when long tunnel is constructed, driving speed is fast.According to rock tunnel(ling) machine architectural feature and work characteristics, the principal element that influences the rock tunnel(ling) machine work efficiency is unit type and construction parameter, comprise the cutter arrangement form, cutter amount of force and go into the rock degree of depth etc., and determine these influence factors be the residing geologic condition in tunnel, the advantage that therefore will bring into play rock tunnel(ling) machine must be according to the characteristics of surrounding rock choose reasonable corresponding apparatus and the construction parameter in tunnel.Rock tunnel(ling) machine type, the configuration of cutter head and choosing of construction parameter at present generally according to indoor rock mechanics experiment achievement, but rock tunnel(ling) machine construction object is a rock mass, because the mechanical behavior of rock mass is subjected to the influence of environmental factor (as terrestrial stress) and structural factor (as rock mass discontinuity), the mechanical test achievement of rock can not be represented the rock mass mechanics behavior, and equipment of Xuan Zeing and construction parameter not necessarily can be brought into play the optimum efficiency of rock tunnel(ling) machine in view of the above.Therefore be necessary to develop a kind of new test method, this method is the various operating modes (comprising the configuration of cutter, the distribution of rock mass discontinuity, the effect of terrestrial stress etc.) that face of simulation tunnel development machine more scientifically, by simulated experiment, study the rock mass failure mechanism under the different operating modes, for the configuration of rock tunnel(ling) machine type selecting and cutter provides foundation.The invention reside in to research rock tunnel(ling) machine rock breaking mechanism provides analogue experiment installation cutter load-the intrusions degree of rock mass under different cutter spacings and terrestrial stress that can obtain containing structural plane by this device concerns and rock mass breaks evolution realtime graphic.By analysis, study the influence factor that rock mass breaks under the various working conditions, for the configuration of rock tunnel(ling) machine type selecting and cutter even construction parameter select to provide direct foundation to experimental data.
Summary of the invention
The object of the present invention is to provide a kind of rock tunnel(ling) machine (TBM) two-dimensional loading analog test device, this apparatus structure is simple, by cooperating with the common rocks pressing machine, has solved the loading problem of subjects; By containing the flat test piece of structural plane, the target of simulation tunnel development machine truly; By the side direction pressue device, solved the terrestrial stress problem; The contrast test of the quantity and spacing by different cutters cooperates the contactless universe real-time deformation recording geometry of test specimen, understands under the effect of different cutter spacing the rock mass rule of breaking quickly and easily, for the configuration of rock tunnel(ling) machine type selecting and cutter head provides foundation.
In order to realize above-mentioned task, the present invention adopts following technical measures:
A kind of tunnel boring machine two-dimensional loading analog test device, it comprises vertical load system, side pressure system, test specimen, longitudinal load and displacement record system, test piece deformation process record system, it is characterized in that: ball ring links to each other with pressure machine cross-beam by bolt, the vertical load force-transmitting pole two ends that the shaft type load transducer is installed connect ball ring and knives rack respectively, cutter is by being bolted on the knives rack, knives rack is provided with chute, and the wedge shape cutter is fixed in the chute by hexagon socket head cap screw; Right plate is connected by four pull bars with left plate, one circular hole is set in the middle of the left plate, the level jack piston passes circular hole from left to right, and level jack is fixed by hexagon socket head cap screw and left plate, and the horizontal loading force-transmitting pole is fixed on the left side of right plate by hex bolts; Horizontal loading force-transmitting pole and level jack piston are laid test specimen left side bearing plate and test specimen right side bearing plate respectively; Each installation position displacement sensor of two ends, the knives rack left and right sides, the displacement transducer free end contacts with test specimen, displacement transducer is connected with computing machine with sampler for data by data line with the shaft type load transducer, the high-speed CCD camera that zoom lens is housed is erected at the place ahead of test specimen, and camera is connected with computing machine by data line.
Interface WMC), knives rack, cutter vertical load system: comprise the ball ring that connects testing machine, vertical load force-transmitting pole, shaft type load transducer (model:.Ball ring links to each other with laboratory ordinary press (YE-200 type) crossbeam by bolt, and the vertical load force-transmitting pole two ends that the shaft type load transducer is installed connect ball ring and knives rack respectively, and cutter is by being bolted on the knives rack.Device-specific loads knives rack and is provided with chute, the wedge shape cutter is fixed in the chute by hexagon socket head cap screw, hilted broadsword tool, double-pole tool even multicutter (number of cutters according to testing requirements but must consider cutter and stent size) can be set as required, thereby cutter is by moving the change that realizes the cutter spacing in chute in chute.For improving the hardness and the wearing quality of cutter, cutter embeds hard alloy steel.Charger of the present invention is connected with the crossbeam of existing testing machine (YE-200 type) by the vertical load force-transmitting pole, can remove the load origin system of Design and Machining complex and expensive from, has reduced the equipment processing cost effectively.
Side pressure system: comprise level jack (model: YD-450), pull bar and left plate, right plate.Level jack and horizontal loading force-transmitting pole by pull bar connection device both sides apply wall pressure to test specimen, and the simulation rock mass is composed the terrestrial stress in the dis environment.
Test specimen: test specimen is installed in down between bearing plate, test specimen left side bearing plate and the right bearing plate of test specimen.Flat test piece is adopted in test, and warranty test carries out under plane stress state.Test specimen adopts high strength cement mortar prefabricated, and test specimen can preset the structural plane at different spacing and inclination angle as required, in order to the simulation tunnel Rock Mass.
Vertical load and displacement record system: comprise the shaft type load transducer installed between the vertical load force-transmitting pole (model: Interface WMC), the displacement transducer that install at the support two ends (model: WDB) and data collecting instrument (model: CDSP).Displacement is connected with computing machine by data collecting instrument with load transducer, and it is stressed and invade the degree of depth of test specimen that synchronous recording loads cutter.
BASLER A6411), computing machine test piece deformation process record system: comprise having zoom lens (the model: (model: of high-speed CCD camera Nikon AF-S DX).Camera frame is located at the test specimen dead ahead, is connected with computing machine by data line.Have uncertainty because test specimen destroys constantly and destroys the path, therefore adopt the distortion situation of contactless whole field deformation recording geometry record loading procedure test specimen, guarantee not omit any deformation information.
The present invention becomes a kind of simulation tunnel development machine two dimension load testing machine by above 5 groups of subsystems, and it is made up of bearing plate, sampler for data, zoom lens, high-speed CCD camera and computing machine under the ball ring that connects testing machine, vertical load force-transmitting pole, shaft type load transducer, knives rack, cutter, left plate, right plate, pull bar, level jack, horizontal loading force-transmitting pole, test specimen left side bearing plate, the right bearing plate of test specimen, test specimen, displacement transducer, the test specimen.Its annexation is:
Right plate is connected by four pull bars with left plate, forms the wall pressure support system.In the middle of the left plate circular hole is set, the level jack piston passes circular hole from left to right, and level jack is fixed by hexagon socket head cap screw and left plate, and the horizontal loading force-transmitting pole is fixed on the left side of right plate by hex bolts.Horizontal loading force-transmitting pole and level jack piston relative position are laid right bearing plate of test specimen and test specimen left side bearing plate respectively, are the test specimen that is easy for installation and removal, and bearing plate is in active state.
For loading, warranty test is in vertical direction all the time, vertical load force-transmitting pole upper end is provided with ball ring, ball ring is connected with press crown by bolt, the vertical load force-transmitting pole lower end that the shaft type load transducer is installed is connected with the loading knife rest by bolt, chute is set in the knife rest, and cutter is by being bolted in the chute.
Load two ends, the support left and right sides displacement transducer respectively is installed, the displacement transducer free end contacts with test specimen, and test loads the relative displacement of support and test specimen, that is the degree of depth of cutter injection test specimen.Displacement transducer is connected with computing machine with sampler for data by data line with the shaft type load transducer.The high-speed CCD camera that connects zoom lens is erected at the dead ahead of test specimen, and camera is connected with computing machine by data line, by pressure, displacement and test piece deformation image in the special software record loading procedure.
The present invention compared with prior art has the following advantages and effect:
At first, the innovation on the method.Adopt long tunnel main rock mechanics achievement in lectotype selection and cutter configuration of rock tunnel(ling) machine construction at present, as the uniaxial compressive strength of rock, elastic modulus etc. according to tunnel surrounding.Because the mechanical characteristic of rock mass and the relation between the rock mechanics characteristic are also indeterminate, tunnel surrounding particularly, because the existence of occurring in nature rock mass discontinuity, the tunnel generally is in buried state in addition, country rock unavoidably is subjected to the terrestrial stress effect, rock mechanics characteristic and the trans-substitution mutually of rock mass mechanics characteristic.Therefore only select device parameter and construction parameter not necessarily can bring into play the optimum efficiency of rock tunnel(ling) machine according to the rock mechanics characteristic.The present invention is according to the virtual condition of rock mass, with reference to rock mechanics characteristic (disposing mortar according to the rock mechanics characteristic when test specimen is made), virtual condition (structural plane and terrestrial stress) by the simulation rock mass, study rock mass failure mechanism under different cutter layouts and the loading parameters situation, thereby device parameter and construction parameter are optimized, help the raising of TBM operating efficiency.Secondly, aspect research rock mass tearing test, this method test figure is abundant more, reliable comprehensively.Because it mainly is that development of deformation arrives macroeffect to a certain degree that rock mass breaks, Cracks Evolution is followed the tracks of and is mainly realized by deformation measurement.At present the test test piece deformation is mainly taked contact method during the rock mass tearing test, pastes the resistor disc of limited quantity as the direction of may breaking at test specimen.Because the heterogeneity of rock medium, rock mass rift direction are difficult for determining that crackle may be subjected to the restriction of resistor disc range, not energy measurement large deformation in addition not according to the path development that sets in advance.The present invention adopts the digital speckle technology of whole audience noncontact form, not limited by distortion size and orientation, obtains the whole field deformation data.Therefore the present invention is more reliable than present method on research technique.
Description of drawings
Fig. 1 is a kind of tunnel boring machine two-dimensional loading analog test device synoptic diagram.
Fig. 2 is a kind of tunnel boring machine two-dimensional loading analog test device part sectioned view.
Wherein: bearing plate, 16-sampler for data, 17-zoom lens, 18-high-speed CCD camera, 19-computing machine under 1-ball ring, 2-vertical load force-transmitting pole, 3-shaft type load transducer, 4-knives rack, 5-cutter, 6-left plate, 7-right plate, 8-pull bar, 9-level jack, 10-horizontal loading force-transmitting pole, 11-test specimen left side bearing plate, 12-test specimen right side bearing plate, 13-test specimen, 14-displacement transducer, the 15-test specimen
Embodiment
Embodiment 1:
With reference to the accompanying drawings the present invention is described in further detail below:
A kind of tunnel boring machine two-dimensional loading analog test device, it is by connecting testing machine ball ring 1, vertical load force-transmitting pole 2, shaft type load transducer (model: Interface WMC) 3, knives rack 4, cutter 5, left plate 6, right plate 7, pull bar 8, level jack (model: YD-450) 9, horizontal loading force-transmitting pole 10, test specimen left side bearing plate 11, test specimen right side bearing plate 12, test specimen 13, displacement transducer (model: WDB) 14, bearing plate 15 under the test specimen, sampler for data (model: CDSP) 16, zoom lens (model: Nikon AF-S DX) 17, high-speed CCD camera (model: BASLER A6411) 18, computing machine 19 is formed, and can be divided into 5 subsystems:
Vertical load system: comprise the ball ring 1, vertical load force-transmitting pole 2, shaft type load transducer 3, knives rack 4, the cutter 5 that connect testing machine.Ball ring 1 links to each other with laboratory ordinary press (YE-200 type) crossbeam by bolt, and vertical load force-transmitting pole 2 two ends that shaft type load transducer 3 is installed connect ball ring 1 and knives rack 4 respectively, and cutter 5 is by being bolted on the knives rack 4.Device-specific loads knives rack 4 and is provided with chute, wedge shape cutter 5 is fixed in the chute by hexagon socket head cap screw, hilted broadsword tool, double-pole tool even multicutter (number of cutters according to testing requirements but must consider cutter and stent size) can be set as required, thereby cutter 5 is by moving the change that realizes the cutter spacing in chute in chute.For improving the hardness and the wearing quality of cutter 5, cutter embeds hard alloy steel.
Side pressure system: comprise level jack 9 (model: YD-450), pull bar 8 and left plate 6, right plate 7.Level jack and horizontal loading force-transmitting pole by pull bar 8 connection device both sides apply wall pressure to test specimen, and the simulation rock mass is composed the terrestrial stress in the dis environment.
Test specimen: test specimen 13 is installed between bearing plate under the test specimen, test specimen left side bearing plate and the right bearing plate of test specimen.Flat test piece is adopted in test, and warranty test carries out under plane stress state.Test specimen 13 adopts high strength cement mortar prefabricated, and test specimen can preset the structural plane at different spacing and inclination angle as required, in order to the simulation tunnel Rock Mass.
Vertical load and displacement record system: comprise the shaft type load transducer installed between the vertical load force-transmitting pole (model: Interface WMC), the displacement transducer 14 that install at the knives rack place (model: WDB) and data collecting instrument 16 (models: CDSP).Displacement transducer 14 is connected with computing machine 19 by data collecting instrument 16 with the shaft type load transducer, and it is stressed and invade the degree of depth of test specimen that synchronous recording loads cutter.
BASLER A6411), computing machine 19 test piece deformation process record system: comprise having zoom lens 17 (the model: (model: of high-speed CCD camera 18 Nikon AF-S DX).High-speed CCD camera 18 is erected at test specimen 13 dead aheads, is connected with computing machine 19 by data line.Have uncertainty because test specimen 13 destroys constantly and destroys the path, therefore adopt the distortion situation of contactless whole field deformation recording geometry record loading procedure test specimen, guarantee not omit any deformation information.
The present invention becomes a kind of tunnel boring machine two-dimensional simulation loading test unit by above 5 groups of subsystems, and it is made up of bearing plate 15, sampler for data 16, camera lens 17, high-speed CCD camera 18, computing machine 19 under connection testing machine ball ring 1, vertical load force-transmitting pole 2, shaft type load transducer 3, knives rack 4, cutter 5, left plate 6, right plate 7, pull bar 8, level jack 9, horizontal loading force-transmitting pole 10, test specimen left side bearing plate 11, test specimen right side bearing plate 12, test specimen 13, displacement transducer 14, the test specimen.Its annexation is:
For loading, warranty test is in vertical direction all the time, vertical load force-transmitting pole 2 upper ends are provided with ball ring 1, ball ring 1 is connected with press crown by bolt, vertical load force-transmitting pole 2 lower ends that shaft type load transducer 3 is installed are connected with knives rack 4 by bolt, in the knives rack 4 chute is set, cutter 5 is by being bolted in the chute, and cutter 5 can move in chute as required and change the cutter spacing and change cutter 5 quantity.Give cutter 5 load applications by pressure machine cross-beam through vertical load force-transmitting pole 2.A displacement transducer 14 is respectively installed at two ends, knives rack 4 left and right sides, and displacement transducer 14 free ends contact with test specimen 13, the relative displacement of test tool support 4 and test specimen 13, that is the degree of depth of cutter 5 injection test specimens 13.Displacement transducer 14 is connected with computing machine 19 with sampler for data 16 by data line with shaft type load transducer 3.The high-speed CCD camera 18 that connects zoom lens 17 is erected at the dead ahead of test specimen 13, and camera 18 is connected with computing machine 19 by data line.
Claims (3)
1. tunnel boring machine two-dimensional loading analog test device, it comprises vertical load system, the side pressure system, test specimen (13), longitudinal load and displacement record system, test piece deformation process record system, it is characterized in that: ball ring (1) links to each other with pressure machine cross-beam by bolt, vertical load force-transmitting pole (2) two ends that shaft type load transducer (3) is installed connect ball ring (1) and knives rack (4) respectively, wedge shape cutter (5) is by being bolted on the knives rack (4), knives rack (4) is provided with chute, and wedge shape cutter (5) is fixed in the chute by hexagon socket head cap screw; Right plate (7) is connected by four pull bars (8) with left plate (6), one circular hole is set in the middle of the left plate (6), the piston of level jack (9) passes circular hole from left to right, level jack (9) is fixing by hexagon socket head cap screw and left plate (6), and horizontal loading force-transmitting pole (10) is fixed on the left side of right plate (7) by hex bolts; The left end of horizontal loading force-transmitting pole (10) is laid test specimen right side bearing plate (12), lays test specimen left side bearing plate (11) on the piston of level jack (9); Each installation position displacement sensor (14) of knives rack (4) two ends, the left and right sides, displacement transducer (14) free end contacts with test specimen (13), displacement transducer (14) is connected with computing machine (19) with sampler for data (16) by data line with shaft type load transducer (3), the high-speed CCD camera (18) that zoom lens (17) are housed is erected at the place ahead of test specimen (13), and camera (18) is connected with computing machine (19) by data line.
2. a kind of tunnel boring machine two-dimensional loading analog test device according to claim 1 is characterized in that: described test specimen (13) is installed between bearing plate under the test specimen (15), test specimen left side bearing plate (11) and the test specimen right side bearing plate (12).
3. a kind of tunnel boring machine two-dimensional loading analog test device according to claim 1 is characterized in that: described wedge shape cutter (5) simulation tunnel development machine hobboing cutter, wedge shape cutter (5) embeds hard alloy steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102464300A CN101702292B (en) | 2009-11-21 | 2009-11-21 | Tunnel boring machine two-dimensional loading analog test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102464300A CN101702292B (en) | 2009-11-21 | 2009-11-21 | Tunnel boring machine two-dimensional loading analog test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101702292A CN101702292A (en) | 2010-05-05 |
| CN101702292B true CN101702292B (en) | 2011-04-20 |
Family
ID=42157203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102464300A Expired - Fee Related CN101702292B (en) | 2009-11-21 | 2009-11-21 | Tunnel boring machine two-dimensional loading analog test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101702292B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102043018B (en) * | 2010-11-02 | 2012-06-27 | 中国科学院武汉岩土力学研究所 | Three-dimensional loading simulation test device for tunnel boring machine |
| CN102841030B (en) * | 2011-06-22 | 2015-06-10 | 中铁隧道集团有限公司 | Test platform used in researching tunnel boring machine tool rock breaking mechanism |
| CN102663194A (en) * | 2012-04-16 | 2012-09-12 | 三一重型装备有限公司 | Heading machine collaborative simulation method and model thereof |
| CN112525510B (en) * | 2020-11-30 | 2021-10-29 | 吉林大学 | Method for testing reliability of servo power tool rest loaded by electro-hydraulic-magnetic hybrid |
| CN112855130B (en) * | 2021-01-20 | 2022-09-23 | 中国科学院武汉岩土力学研究所 | Method for measuring and monitoring optical speckle ground stress of hole wall of drill hole |
-
2009
- 2009-11-21 CN CN2009102464300A patent/CN101702292B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101702292A (en) | 2010-05-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201859095U (en) | Three-dimensional loading simulation test device for tunnel borer | |
| CN102043018B (en) | Three-dimensional loading simulation test device for tunnel boring machine | |
| CN101702292B (en) | Tunnel boring machine two-dimensional loading analog test device | |
| CN102928293B (en) | Dynamic and static testing system and method for multifunctional wharf structure | |
| CN108444813B (en) | Multi-scale soil-rock mixture-bedrock interface shear characteristic testing device and method | |
| Kang et al. | A new linear cutting machine for assessing the rock-cutting performance of a pick cutter | |
| CN103471941B (en) | Anchor rod shock resistance simulation test system | |
| CN201561897U (en) | Two-dimensional loading simulation tester of tunnel boring machine | |
| CN101158629B (en) | Scanning electron microscope electron back scattering diffraction in-situ stretching device and measuring method | |
| CN102128742B (en) | Testing device and method of soil body II-type fracture damage | |
| CN105319130B (en) | A kind of jointed rock mass pressure of testing cuts the test method of performance | |
| CN105352820A (en) | Multi-function fracture rock mass pressure shear test device | |
| CN103471942B (en) | Uniaxial impact ground pressure simulation test system and application method of impact ground pressure uniaxial simulation test system | |
| CN108204916B (en) | Shear-low temperature coupling experimental device and method for penetrating fracture | |
| CN210893972U (en) | Single-shaft bidirectional synchronous control electromagnetic loading dynamic shear test device | |
| CN102353592A (en) | On-site servo controlled actual triaxial testing apparatus for rock mass | |
| CN106501081A (en) | A kind of true triaxial test method of simulation tension type rock burst | |
| CN108982265B (en) | Experimental device for pile soil shearing action is observed and is measured based on PIV technique | |
| CN210720389U (en) | Tunnel excavation process analogue test device | |
| CN105890947A (en) | Device and method for preparation of soil body for site soil body direct shear test and direct shear test | |
| Dang et al. | Complex analysis of shear box tests with explicit consideration of interaction between test device and sample | |
| Xu et al. | Digital features of main constituents in granite during crack initiation and propagation | |
| CN105841855A (en) | Novel ground stress test device | |
| Zhang et al. | Experimental study on compression–bending damage of segmental joints based on acoustic emission | |
| CN207964511U (en) | A kind of cylindrical rock sample straight shear device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110420 Termination date: 20161121 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |