CN105649117A - Vacuum preloading method effectiveness real-time detection method and device - Google Patents
Vacuum preloading method effectiveness real-time detection method and device Download PDFInfo
- Publication number
- CN105649117A CN105649117A CN201610038065.4A CN201610038065A CN105649117A CN 105649117 A CN105649117 A CN 105649117A CN 201610038065 A CN201610038065 A CN 201610038065A CN 105649117 A CN105649117 A CN 105649117A
- Authority
- CN
- China
- Prior art keywords
- piezoelectric transducer
- soil body
- model casing
- detecting device
- flexure element
- 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.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Geophysics And Detection Of Objects (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides a vacuum preloading method effectiveness real-time detection method and device. By means of piezoelectric sensors, compression wave speeds and shear wave speeds of a soil body at different times are measured; a normally-solidified soil body serves as a comparison group, and the compression wave speed and the shear wave speed of the normally-solidified soil body are measured through the piezoelectric sensors; then according to related formulas, the shear modulus, the compression modulus and the Poisson's ratio are obtained. By means of the detection method and device, real-time evolution of relevant parameters of the soil body along with load application can be further obtained, and accordingly effectiveness of a vacuum preloading consolidation method in different soil bodies and in different depths is judged. By means of the detection method, effectiveness of the vacuum preloading method can be accurately evaluated in a lossless mode, design and construction parameters are optimized according to different soil mass properties, operation is convenient, and reliability is high.
Description
Technical field
The present invention relates to a kind of vacuum method effectiveness real-time detection method and device.
Background technology
Vacuum prepressing ground foundation treatment method is widely used in the improvement of the physical and mechanical parameter of soft soil foundation, especially in the engineering reclaimed fields from the sea on a large scale in recent years, but vacuum prepressing ground foundation treatment method is bigger for the consolidation effect but difference of different soil properties, what directly affects design parameter chooses the optimization with construction technology, and the maximum shear modulus of soil, modulus of compressibility and three parameters of soil pressure three parameters that to be soil mechanics most basic, it is that Geotechnical Engineering calculates and the very important basic parameter of design aspect. And so far, domestic laboratory mainly evaluates consolidation effect by vane-shear method, could must judge after reinforcing terminates, remove to measure process and the consolidation effect of the reinforcing for different earthen foundations without good method, it is therefore desirable to propose a kind of lossless, reliable results and detecting device simple to operate, before design and construction, the effect of vacuum preloading method is evaluated.
Summary of the invention
In order to be able to realize the reinforcing process of the accurate measurements soil body, the present invention is by the change to the maximum shear modulus of soil, modulus of compressibility and three parameters of soil pressure, by calculating its consolidation effect of accurate evaluation. It is an object of the invention to provide in a kind of Control Room the analyzer of soil body basic mechanical parameter under vacuum preloading state, pass through comparing calculation, the Soft Ground Improved By Vacuum Preloading process range effectiveness to different soil properties can be evaluated, and design and construction are proposed Optimized Measures, and for suitable in mud, silt clay and clay.
Present disclosure is as follows: a kind of vacuum method effectiveness real-time detection method, and the detection of vacuum method effectiveness realizes through the following steps:
(1) measure under different time by piezoelectric transducer, the compression velocity of wave V of the different depth place soil bodypWith shear wave velocity Vs;
(2) taking the soil body after normal consolidation is contrast groups, measures its compression velocity of wave V by piezoelectric transducernpWith shear wave velocity Vns;
(3) reinforcing factor alpha=V is calculateds/Vns;
(4) calculating Poisson's ratio ��=E/2G-1, wherein E is elastic modelling quantity, and G is modulus of shearing, E=Vp 2��, G=Vs 2��, ��=E/2G-1=Vp 2/2Vs 2-1;
(5) �� is finally calculated respectively1, ��2, ��3And ��1, ��2, ��3(��1, ��2, ��3And ��1, ��2, ��3The respectively reinforcing coefficient of three different depths of the soil body and Poisson's ratio); contrast with normally consolidated soil; the consolidation effect of the different tested soil body of consolidation time can be obtained; may determine that the consolidation effect at different depth place simultaneously, finally give various soil mass and utilize the effectiveness of vacuum preloading method;
Wherein, the described soil body is under prefabricating condition.
Wherein, the compression velocity of wave V of the soil body is measured by piezoelectric transducerpWith shear wave velocity VsStep as follows: described piezoelectric transducer includes vibration emitter and vibration receiver, by vibrating emitter transmitted wave, ripple is received by vibration receiver, measure transmitted wave and accept the time difference t of ripple, and measure the distance L between launch point and the sensor receiving point, respectively obtain compression velocity of wave VpWith shear wave velocity Vs��
Detecting device based on above-mentioned vacuum method effectiveness real-time detection method, described detecting device includes prepressing device and model casing, described model casing is by being used for depositing the cavity volume of soil to be measured, openable chamber lid is constituted, described prepressing device is connected with the chamber lid of model casing, on described model casing or be provided with the piezoelectric sensor array of three groups or more than three groups inside model casing, described piezoelectric transducer external data gathers and display device, described piezoelectric transducer includes vibration emitter and vibration receiver, described vibration emitter and vibration receiver are positioned at same level position.
Described piezoelectric transducer is flexure element piezoelectric transducer.
It is provided with three groups of flexure element piezoelectric sensor arrays on described model casing or inside model casing, and described in three groups, flexure element piezoelectric transducer is installed on the position of different depth.
Arranging flexure element piezoelectric transducer installing rack in described model casing, described flexure element piezoelectric transducer installing rack is two and be arranged in parallel, and described vibration emitter and vibration receiver are separately mounted on two flexure element installing racks.
Described flexure element piezoelectric sensor surface epoxy resin is uniformly coated with.
The position connected between bottom described flexure element piezoelectric transducer installing rack and bottom model casing is provided with cushion pad.
Described cushion pad is silica-gel coating.
Described prepressing device be vacuum pump, preloading and draining board therein one or more.
The invention has the beneficial effects as follows: the invention provides at K0The modulus of shearing in the horizontally and vertically direction of the soil body of (natural sediment) state, model structure needed for the calculating of modulus of compressibility and Poisson's ratio, by method of the present invention and detecting device, the differentiation applying soil body relevant parameter along with load can be obtained, utilize piezoelectric sensor array simultaneously, obtain the consolidation effect of the soil body at different depth place, reach the purpose of the effectiveness of vacuum preconsolidation method during for different soil property different depth, the present invention can the accurate lossless effectiveness evaluating vacuum preloading method, for different soil properties, optimization design and construction parameter, easy to operate, reliability is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 reinforces the trend that factor alpha changes with experimental period.
Fig. 3 is the Poisson's ratio �� trend changed with experimental period.
In figure, 1. pressure film sensor, 2. piezoelectric transducer.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the present invention is further illustrated: a kind of vacuum method effectiveness real-time detection method, and step is as follows:
(1) measure under different time by piezoelectric transducer, the compression velocity of wave V of the different depth place soil bodypWith shear wave velocity Vs;
(2) taking the soil body after normal consolidation is contrast groups, measures its compression velocity of wave V by piezoelectric transducernpWith shear wave velocity Vns;
(3) reinforcing factor alpha=V is calculateds/Vns;
(4) calculating Poisson's ratio ��=E/2G-1, wherein E is elastic modelling quantity, and G is modulus of shearing, E=Vp 2��, G=Vs 2��, ��=E/2G-1=Vp 2/2Vs 2-1;
(5) �� is finally calculated respectively1, ��2, ��3And ��1, ��2, ��3(��1, ��2, ��3And ��1, ��2, ��3The respectively reinforcing coefficient of three different depths of the soil body and Poisson's ratio); contrast with normally consolidated soil; the consolidation effect of the different tested soil body of consolidation time can be obtained; may determine that the consolidation effect at different depth place simultaneously, finally give various soil mass and utilize the effectiveness of vacuum preloading method;
Wherein, the described soil body is under prefabricating condition.
Reinforce factor alpha, ����1.0, when �� is closer to 1, illustrate that consolidation effect is more obvious; The variation tendency of Poisson's ratio �� can be recorded simultaneously, and test and can obtain, as shown in Figure 2,3, along with the increase of consolidation effect, Poisson's ratio �� generally can be reduced to 0.25 from 0.42, therefore can more comprehensively evaluate the soil body at consolidation effect by the two parameter.
Wherein, the compression velocity of wave V of the soil body is measured by piezoelectric transducerpWith shear wave velocity VsStep as follows: described piezoelectric transducer includes vibration emitter and vibration receiver, by vibrating emitter transmitted wave, ripple is received by vibration receiver, measure transmitted wave and accept the time difference t of ripple, and measure the distance L between launch point and the sensor receiving point, respectively obtain compression velocity of wave VpWith shear wave velocity Vs��
The invention provides at K0The variation tendency of the modulus of shearing of the soil body of (natural sediment) state, modulus of compressibility growth trend and Poisson's ratio calculates required model structure, obtain the increase along with load further and can obtain the change of modulus of shearing, modulus of compressibility and Poisson's ratio in this process, evaluate the effectiveness of vacuum method.
Detecting device based on above-mentioned vacuum method effectiveness real-time detection method, described detecting device includes prepressing device and model casing, described model casing is by being used for depositing the cavity volume of soil to be measured, openable chamber lid is constituted, described prepressing device is connected with the chamber lid of model casing, on described model casing or be provided with the piezoelectric sensor array of three groups or more than three groups inside model casing, described piezoelectric transducer external data gathers and display device, described piezoelectric transducer includes vibration emitter and vibration receiver, described vibration emitter and vibration receiver are positioned at same level position. the soil body to be measured is loaded in cavity volume, diaphragm seal is covered above the soil body, lid upper chamber cover, open prepressing device, the soil body is initially located in preloading condition, and the soil body moves down, the compression velocity of wave of piezoelectric transducer the real time measure soil body different time points different depth under preloading condition and shear wave velocity, in the modulus of shearing calculated according to said method, modulus of compressibility and Poisson's ratio, thus evaluating effectiveness.
Described prepressing device be vacuum pump, preloading and draining board therein one or more.
Described piezoelectric transducer is the Q220.A4.303Y flexure element piezoelectric transducer of PiezoSystem company.
It is provided with three groups of flexure element piezoelectric transducers on described model casing or inside model casing, and described in three groups, flexure element piezoelectric transducer is installed on the position of different depth. Three groups of flexure element piezoelectric transducers are separately mounted in the soil layer of different depth, it is possible to measure modulus of shearing and the modulus of compressibility of different depth soil layer simultaneously, reach the purpose of the consolidation effect of the test different depth place soil body.
Arranging flexure element piezoelectric transducer installing rack in described model casing, described flexure element piezoelectric transducer installing rack is two and be arranged in parallel, and described vibration emitter and vibration receiver are separately mounted on two flexure element installing racks. Distance between vibration emitter and vibration receiver is less than or equal to 20cm, and otherwise in the communication process of ripple, energy loss is too big, causes receiving terminal to receive, or very weak, affects test result. Being arranged in cavity volume by flexure element piezoelectric transducer can not need the size of restriction cavity volume.
Described flexure element piezoelectric sensor surface epoxy resin is uniformly coated with, and reaches waterproof and antiseptical effect.
The position connected between bottom described flexure element piezoelectric transducer installing rack and bottom model casing is provided with cushion pad. Can avoid the resonance that vibration emitter produces that model casing is vibrated, the accuracy of impact detection data.
Described cushion pad is silica-gel coating, it is possible to reach the effect of vibration isolation so that vibration emitter is launched according to the direction of pre-determined route.
Described cavity volume is made up of the rigidity aluminium sheet that thickness is 3cm of five pieces of detachable installations, to ensure that the soil body is at K0Under state.
Described model casing is additionally provided with one or more pressure film sensors. Different depth soil pressure can be measured, and obtain K0The evolution of value.
The surface smear epoxy resin of described pressure film sensor, plays waterproof and antiseptical effect, it is to avoid sensor contacts, with soil to be measured, the corrosion caused for a long time.
Embodiment is not construed as limitation of the present invention, but any spiritual improvements introduced based on the present invention, all should within protection scope of the present invention.
Claims (10)
1. a vacuum method effectiveness real-time detection method, it is characterised in that the detection of vacuum method effectiveness realizes through the following steps:
(1) measure under different time by piezoelectric transducer, the compression velocity of wave V of the different depth place soil bodypWith shear wave velocity Vs;
(2) taking the soil body after normal consolidation is contrast groups, measures its compression velocity of wave V by piezoelectric transducernpWith shear wave velocity Vns;
(3) reinforcing factor alpha=V is calculateds/Vns;
(4) calculating Poisson's ratio ��=E/2G-1, wherein E is elastic modelling quantity, and G is modulus of shearing, E=Vp 2��, G=Vs 2��, ��=E/2G-1=Vp 2/2Vs 2-1;
(5) �� is finally calculated respectively1, ��2, ��3And ��1, ��2, ��3, with the contrast of normally consolidated soil, it is possible to obtain the consolidation effect of the different tested soil body of consolidation time, may determine that the consolidation effect at different depth place, finally give various soil mass and utilize the effectiveness of vacuum preloading method simultaneously;
Wherein, the described soil body is under prefabricating condition.
2. vacuum method effectiveness real-time detection method according to claim 1, it is characterised in that measured the compression velocity of wave V of the soil body by piezoelectric transducerpWith shear wave velocity VsStep as follows: described piezoelectric transducer includes vibration emitter and vibration receiver, by vibrating emitter transmitted wave, ripple is received by vibration receiver, measure transmitted wave and accept the time difference t of ripple, and measure the distance L between launch point and the sensor receiving point, respectively obtain compression velocity of wave VpWith shear wave velocity Vs��
3. based on the detecting device of the vacuum method effectiveness real-time detection method described in any one of claim 1 or 2, it is characterized in that: described detecting device includes prepressing device and model casing, described model casing is by being used for depositing the cavity volume of soil to be measured, openable chamber lid is constituted, described prepressing device is connected with the chamber lid of model casing, on described model casing or be provided with the piezoelectric sensor array of three groups or more than three groups inside model casing, described piezoelectric transducer external data gathers and display device, described piezoelectric transducer includes vibration emitter and vibration receiver, described vibration emitter and vibration receiver are positioned at same level position.
4. detecting device according to claim 3, it is characterised in that: described piezoelectric transducer is flexure element piezoelectric transducer.
5. detecting device according to claim 4, it is characterised in that: it is provided with three groups of flexure element piezoelectric sensor arrays on described model casing or inside model casing, and described in three groups, flexure element piezoelectric transducer is installed on the position of different depth.
6. detecting device according to claim 4, it is characterized in that: described model casing arranges flexure element piezoelectric transducer installing rack, described flexure element piezoelectric transducer installing rack is two and be arranged in parallel, and described vibration emitter and vibration receiver are separately mounted on two flexure element installing racks.
7. detecting device according to claim 4, it is characterised in that: described flexure element piezoelectric sensor surface epoxy resin is uniformly coated with.
8. detecting device according to claim 6, it is characterised in that: the position connected bottom described flexure element piezoelectric transducer installing rack and between bottom model casing is provided with cushion pad.
9. detecting device according to claim 8, it is characterised in that: described cushion pad is silica-gel coating.
10. detecting device according to claim 3, it is characterised in that: described prepressing device be vacuum pump, preloading and draining board therein one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610038065.4A CN105649117B (en) | 2016-01-20 | 2016-01-20 | A kind of vacuum method validity real-time detection method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610038065.4A CN105649117B (en) | 2016-01-20 | 2016-01-20 | A kind of vacuum method validity real-time detection method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105649117A true CN105649117A (en) | 2016-06-08 |
| CN105649117B CN105649117B (en) | 2017-10-24 |
Family
ID=56486824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610038065.4A Active CN105649117B (en) | 2016-01-20 | 2016-01-20 | A kind of vacuum method validity real-time detection method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105649117B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111024923A (en) * | 2019-12-03 | 2020-04-17 | 中国电建集团华东勘测设计研究院有限公司 | Gas evolution in soil and gas-containing soil mechanics measuring device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4458525A (en) * | 1982-04-08 | 1984-07-10 | Iowa State University Research Foundation, Inc. | Borehole plate test |
| CN2602355Y (en) * | 2002-11-12 | 2004-02-04 | 浙江大学 | Triaxial indoor piezoelectric ceramics organ soil sample wave velocity metering equipment |
| CN2804819Y (en) * | 2005-07-08 | 2006-08-09 | 浙江大学 | Piezoelectric ceramic primary sample wave velocity measuring device mounted on consolidation meter |
| CN101413823A (en) * | 2008-05-12 | 2009-04-22 | 浙江大学 | Portable piezoelectric ceramic bending element soil body shear wave speed test device |
| CN102645266A (en) * | 2012-04-01 | 2012-08-22 | 浙江大学 | Soil mass elastic wave velocity testing piezoelectric sensor for centrifugal model test |
| CN202672131U (en) * | 2012-05-22 | 2013-01-16 | 河南城建学院 | Wireless monitoring system for monitoring layered settlement of vacuum preloaded foundation soil |
| CN102943461A (en) * | 2012-12-06 | 2013-02-27 | 天津市市政工程设计研究院 | Quantitative analysis method for evaluating dynamic compaction reinforcement effect of foundation by utilizing Rayleigh surface waves |
| CN103711117A (en) * | 2014-01-17 | 2014-04-09 | 邓立新 | Automatic intelligent vacuum preloading monitoring system |
| CN104880366A (en) * | 2015-05-26 | 2015-09-02 | 温州大学瓯江学院 | Soil body kinetic parameter and anisotropy tester under K0 condition |
-
2016
- 2016-01-20 CN CN201610038065.4A patent/CN105649117B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4458525A (en) * | 1982-04-08 | 1984-07-10 | Iowa State University Research Foundation, Inc. | Borehole plate test |
| CN2602355Y (en) * | 2002-11-12 | 2004-02-04 | 浙江大学 | Triaxial indoor piezoelectric ceramics organ soil sample wave velocity metering equipment |
| CN2804819Y (en) * | 2005-07-08 | 2006-08-09 | 浙江大学 | Piezoelectric ceramic primary sample wave velocity measuring device mounted on consolidation meter |
| CN101413823A (en) * | 2008-05-12 | 2009-04-22 | 浙江大学 | Portable piezoelectric ceramic bending element soil body shear wave speed test device |
| CN102645266A (en) * | 2012-04-01 | 2012-08-22 | 浙江大学 | Soil mass elastic wave velocity testing piezoelectric sensor for centrifugal model test |
| CN202672131U (en) * | 2012-05-22 | 2013-01-16 | 河南城建学院 | Wireless monitoring system for monitoring layered settlement of vacuum preloaded foundation soil |
| CN102943461A (en) * | 2012-12-06 | 2013-02-27 | 天津市市政工程设计研究院 | Quantitative analysis method for evaluating dynamic compaction reinforcement effect of foundation by utilizing Rayleigh surface waves |
| CN103711117A (en) * | 2014-01-17 | 2014-04-09 | 邓立新 | Automatic intelligent vacuum preloading monitoring system |
| CN104880366A (en) * | 2015-05-26 | 2015-09-02 | 温州大学瓯江学院 | Soil body kinetic parameter and anisotropy tester under K0 condition |
Non-Patent Citations (1)
| Title |
|---|
| 曾向武等: "压电陶瓷传感器在岩土工程中的应用", 《岩土工程学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111024923A (en) * | 2019-12-03 | 2020-04-17 | 中国电建集团华东勘测设计研究院有限公司 | Gas evolution in soil and gas-containing soil mechanics measuring device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105649117B (en) | 2017-10-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108106965B (en) | Device and method for in-situ synchronous measurement of acoustic and physical parameters of submarine sediment | |
| CN106018740B (en) | Hole pressure touching methods demarcate can system | |
| CN103499374B (en) | A kind of ultrasound wave dynamic liquid level detection method based on neutral net and system | |
| CN105424315A (en) | Device and method for measuring impact on horizontal bearing performance of pile foundation from waves | |
| CN104768113B (en) | A kind of Love Wave Device structure and detection method for liquid Multi-parameter sensing | |
| CN103968883A (en) | Sludge detection method and instrument | |
| CN205785902U (en) | Multifunctional gravity formula marine sediment sampler | |
| Sadeghi et al. | A vacuum-refilled tensiometer for deep monitoring of in-situ pore water pressure | |
| CN109556653A (en) | A kind of pipeclay in situ effect test macro and its test method with hydraulic suction cylinder basis | |
| CN205785207U (en) | A kind of novel measurement sea floor sampling depth device | |
| CN113700057B (en) | Method for measuring foundation settlement | |
| CN114910367A (en) | Indoor static sounding and bending element combined test system suitable for soil body size strain measurement | |
| CN105649117A (en) | Vacuum preloading method effectiveness real-time detection method and device | |
| CN205369327U (en) | Vacuum preloading validity real -time detection device | |
| CN113075027B (en) | Test device and method for measuring dynamic elastic modulus of soil body model | |
| CN206002194U (en) | A kind of hydrophone sensitivity temperature response measuring device and system | |
| CN115929280A (en) | Calibration/calibration device and method for ultrasonic sensor for geothermal well logging | |
| CN111042215A (en) | Existing building foundation pile quality detection method and device | |
| CN104880366B (en) | Evolution Microstructure method based on soil body kinetic parameter and anisotropy analyzer under the conditions of K0 | |
| CN2616894Y (en) | Water-level measuring meter | |
| CN107560883A (en) | Multifunctional gravity formula marine sediment sampler | |
| CN207067067U (en) | Vibration isolator experimental apparatus for capability | |
| CN207066594U (en) | Attenuation of P-wave measurement apparatus | |
| CN205015334U (en) | A device that is arranged in layering of laboratory model testing survey soil body to subside | |
| CN107271563A (en) | Vibration isolator experimental apparatus for capability and 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 |