CN103422497A - Method for reinforcing soft soil foundation by using cement-soil mixing pile - Google Patents
Method for reinforcing soft soil foundation by using cement-soil mixing pile Download PDFInfo
- Publication number
- CN103422497A CN103422497A CN201310365799XA CN201310365799A CN103422497A CN 103422497 A CN103422497 A CN 103422497A CN 201310365799X A CN201310365799X A CN 201310365799XA CN 201310365799 A CN201310365799 A CN 201310365799A CN 103422497 A CN103422497 A CN 103422497A
- Authority
- CN
- China
- Prior art keywords
- cement
- pile
- mixing
- foundation
- stir
- 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.)
- Pending
Links
Images
Abstract
The invention relates to a method for reinforcing a soft soil foundation by using cement-soil mixing piles. The method comprises the steps of 1) arranging pile positions on the soft soil foundation; 2) lifting a mixing machine to one pile position on the soft soil foundation by using a tower crane; 3) starting up the mixing machine, wherein a mixing head cuts soil while rotating and then sinks to design depth; 4) preparing cement grout; 5) lifting the mixing head, spraying the grout and performing mixing to enable the cement grout to be fully mixed with the soil till the mixing head is lifted up to the ground; 6) repeating the step 3 to the step 5, wherein each pile requires for re-mixing and re-spraying; 7) filling clean water into an aggregate bin, starting up a grout pump to clean residual grout in all pipelines and cleaning the mixing head; and 8) moving the mixing machine to the next pile position and repeating the step 2 to the step 7 to carry out the construction of the next pile. Compared with the prior art, the method for reinforcing the soft soil foundation by using the cement-soil mixing piles has the advantages that the water-cement ratio is proper, the goal of uniform mixing is easy to realize, the pile forming quality is high, the strength is high, the construction is convenient to carry out, the construction cost is low and the economic benefits are remarkable.
Description
Technical field
The present invention relates to a kind of method of reinforced soft soil ground, especially relate to a kind of method that adopts the cement mixing method reinforcing soft ground.
Background technology
Along with the power grid construction develop rapidly, the basic engineering of transmission line of electricity, be related to the safe operation of circuit, more is related to investment and the comprehensive benefit of engineering.Basic pattern commonly used is at present: 1. slab foundation; 2. these two kinds of patterns of bored pile foundation.Wherein the straight column type basis is generally used for geological condition area preferably, and bored concrete pile foundation is generally used for the geology unfavorable areas such as river embankment, weak soil.
At soft soil areas, because its pole and tower foundation design not only will meet general pole and tower foundation designing requirement, also should meet the requirements such as column foot sedimentation amount, gradient, so the soft soil areas pole and tower foundation is designed with its particularity.Because there were many weak points in China in the research aspect the processing of soft soil areas ground and pole and tower foundation thereof in the past, cause soft soil areas pole and tower foundation design level lower, compare the gap that existence is larger with international most advanced level, the ratio of the cost of its foundation the line is busy road overall investment is generally in 25% left and right, what have is even higher, and the not research of carrying out ground stabilization and processing of system, therefore the soft soil areas pole and tower foundation has become link very weak in transmission line construction, ground is processed and design optimization is soft soil areas work transmission line key subjects in the urgent need to address.
At present, in soft clay area, use board-like shallow foundation that following problem is arranged:
(1) bearing capacity of foundation soil of bearing stratum is lower, the overburden layer of shallow-layer is thicker, caused for general steel tower shallow foundation (slab foundation) and compared and need to take larger area, darker embedded depth of foundation with other areas, the excavated volume of the cubic metre of earth and stone is large, and concrete and amount of reinforcement are also large.
(2) the slab foundation baseplate width is large, and basis is subject to external disturbance large, as inhomogeneous preloading or excavation fish pond, ditch etc. are arranged near the tower position, all can cause the stability of basic foundation to be damaged.
(3) for larger steel towers of foundation bearing capacity such as same tower four loops, 500kV circuits, if adopt slab foundation, baseplate width can be very large, and even slab foundation can't meet design requirement, and therefore all needs to adopt bored pile foundation completely.And pile foundation belongs to deep foundation, investment cost is large, its cost is slab foundation 2～4 times, this makes the foundation cost of whole piece circuit very high.
Therefore, under current background, how to enlarge the scope of application of shallow foundation, how the ground of shallow foundation is taked to suitable foundation treatment mode, reduce the shallow foundation floor space, reduce basic material usage, reduce the usage ratio of bored pile in circuit, make shallow foundation have more reasonability and economy at aspects such as floor space, comprehensive costs, will become key one ring of control engineering cost.
Summary of the invention
Purpose of the present invention is exactly to provide in order to overcome the defect that above-mentioned prior art exists a kind of method that job practices is simple, reduce the employing cement mixing method reinforcing soft ground of cost of production, reliable construction quality.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of method that adopts the cement mixing method reinforcing soft ground comprises the following steps:
(1) lay out pile: lay the stake position on soft foundation, the form of laying out pile is that square lays out pile or quincunx laying out pile;
(2) location: pylon suspention mixer arrives the stake position of soft foundation;
(3) stir in advance sinking: start mixer, stir rotation, Qie Tu, limit, limit in front and sink down into projected depth;
(4) prepare cement paste: when mixer stirs sinking in advance, prepare cement paste, and cement paste is poured in aggregate bin;
(5) promoting whitewashing stirs: after mixer sinks to projected depth, by the mixer gearshift, reversion promotes, and opens mortar pump cement paste is pressed in soft foundation, and stir on limit whitewashing, limit, limit promotes, and makes the abundant mix of cement paste and weak soil, until ground;
(6) repeat to stir: repeating step (3) is to step (5), and every pile all will stir multiple spray again, and the speed restriction stirred again for the last time is at 0.6～0.7m/min, and the Finish time of every pile is no less than 40min;
(7) clean: inject clear water in aggregate bin, open mortar pump, clean the remaining slurries in whole pipelines, and clean stirring-head;
(8) displacement: mixer is moved to next position, and repeating step (2)～step (7), carry out the construction of next pile.
Step (3) is described stirs in the sinking process in advance, and the subsidence velocity of stirring-head is 0.4～0.6m/min.
The water/binder ratio of the described cement paste of step (4) is 0.4～0.5, and cement mixed ratio is 10%～15%, contains 0.5%～1% efficient retarding and water reducing agent of cement weight in described cement paste.
In the described lifting whitewashing of step (5) whipping process, the speed that mixer promotes is 0.3～0.4m/min, and the whitewashing amount of mortar pump is 20～25L/min, and spray pressure is controlled at 0.6～0.8Mpa.
The described number of times that repeats the stirring sinking of step (6) is twice, adopts " two sprays four are stirred " technique, i.e. twice lifting whitewashing, respectively stir twice up and down.
Step (6) is described repeat to stir after, in stake item 1.0～1.5m scope, increasing once and clap and starch again, to improve its intensity.
After the described cleaning of step (7) completes, cement mixing method is carried out to quality inspection.
In the present invention, the degree of depth of concrete stake is 6～8 meters, and the diameter of concrete stake is 0.5～2 meter.
Compared with prior art, the present invention has the following advantages and beneficial effect:
1. with other Ground Treatment mode, compare, the inventive method can be saved the materials such as great deal of steel, concrete; In the present invention, water/binder ratio is suitable, easily stirs, and pile quality is high, and intensity is high.
2. construction quality of the present invention is easy to control and guarantee, and can carry out the construction of darker stake.
3. method cost of the present invention is low, remarkable in economical benefits.
The accompanying drawing explanation
Fig. 1 is process chart of the present invention.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment
A kind of method that adopts the cement mixing method reinforcing soft ground, technique as shown in Figure 1, comprises the following steps:
(1) lay out pile: lay the stake position on soft foundation, the form of laying out pile is that square lays out pile or quincunx laying out pile, and the degree of depth of design stake is 6～8 meters, and the diameter of stake is 0.5～2 meter;
(2) location: pylon suspention mixer arrives the stake position of soft foundation;
(3) stir in advance sinking: start mixer, stir rotation, Qie Tu, limit, limit in front and sink down into projected depth, the subsidence velocity of stirring-head is 0.4～0.6m/min;
(4) prepare cement paste: when mixer stirs sinking in advance, prepare cement paste, and cement paste is poured in aggregate bin, the water/binder ratio of cement paste is 0.4～0.5, cement mixed ratio is 10%～15%, contains 0.5%～1% efficient retarding and water reducing agent of cement weight in cement paste;
(5) promoting whitewashing stirs: after mixer sinks to projected depth, mixer is shifted gears, reversion promotes, and open mortar pump cement paste is pressed in soft foundation, stir on limit whitewashing, limit, limit promotes, and makes the abundant mix of cement paste and weak soil, until ground, the speed that mixer promotes is 0.3～0.4m/min, and the whitewashing amount of mortar pump is 20～25L/min, and spray pressure is controlled at 0.6～0.8Mpa;
(6) repeat to stir: repeating step (3) is to step (5), every pile all will stir multiple spray again, the last speed restriction stirred again is at 0.6～0.7m/min, the Finish time of every pile is no less than 40min, repeating to stir the number of times sunk is twice, adopt " two sprays four are stirred " technique, i.e. twice lifting whitewashing, respectively stir twice up and down; After repeating to stir, in stake item 1.0～1.5m scope, increasing again and once clap slurry, to improve its intensity;
(7) clean: inject clear water in aggregate bin, open mortar pump, clean the remaining slurries in whole pipelines, and clean stirring-head;
Step (7) is carried out quality inspection to cement mixing method after having cleaned;
(8) displacement: mixer is moved to next position, and repeating step (2)～step (7), carry out the construction of next pile.
Claims (7)
1. a method that adopts the cement mixing method reinforcing soft ground, is characterized in that, the method comprises the following steps:
(1) lay out pile: lay the stake position on soft foundation, the form of laying out pile is that square lays out pile or quincunx laying out pile;
(2) location: pylon suspention mixer arrives the stake position of soft foundation;
(3) stir in advance sinking: start mixer, stir rotation, Qie Tu, limit, limit in front and sink down into projected depth;
(4) prepare cement paste: when mixer stirs sinking in advance, prepare cement paste, and cement paste is poured in aggregate bin;
(5) promoting whitewashing stirs: after mixer sinks to projected depth, by the mixer gearshift, reversion promotes, and opens mortar pump cement paste is pressed in soft foundation, and stir on limit whitewashing, limit, limit promotes, and makes the abundant mix of cement paste and weak soil, until ground;
(6) repeat to stir: repeating step (3) is to step (5), and every pile all will stir multiple spray again, and the speed restriction stirred again for the last time is at 0.6～0.7m/min, and the Finish time of every pile is no less than 40min;
(7) clean: inject clear water in aggregate bin, open mortar pump, clean the remaining slurries in whole pipelines, and clean stirring-head;
(8) displacement: mixer is moved to next position, and repeating step (2)～step (7), carry out the construction of next pile.
2. a kind of method that adopts the cement mixing method reinforcing soft ground according to claim 1, is characterized in that, step (3) is described stirs in the sinking process in advance, and the subsidence velocity of stirring-head is 0.4～0.6m/min.
3. a kind of method that adopts the cement mixing method reinforcing soft ground according to claim 1, it is characterized in that, the water/binder ratio of the described cement paste of step (4) is 0.4～0.5, cement mixed ratio is 10%～15%, contains 0.5%～1% efficient retarding and water reducing agent of cement weight in described cement paste.
4. a kind of method that adopts the cement mixing method reinforcing soft ground according to claim 1, it is characterized in that, in the described lifting whitewashing of step (5) whipping process, the speed that mixer promotes is 0.3～0.4m/min, the whitewashing amount of mortar pump is 20～25L/min, and spray pressure is controlled at 0.6～0.8Mpa.
5. a kind of method that adopts the cement mixing method reinforcing soft ground according to claim 1, it is characterized in that, the described number of times that repeats the stirring sinking of step (6) is twice, adopts " two sprays four are stirred " technique, i.e. twice lifting whitewashing, respectively stir twice up and down.
6. a kind of method that adopts the cement mixing method reinforcing soft ground according to claim 1, is characterized in that, step (6) is described repeat to stir after, in stake item 1.0～1.5m scope, increasing once and clap and starch again, to improve its intensity.
7. a kind of method that adopts the cement mixing method reinforcing soft ground according to claim 1, is characterized in that, after the described cleaning of step (7) completes, cement mixing method carried out to quality inspection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310365799XA CN103422497A (en) | 2013-08-21 | 2013-08-21 | Method for reinforcing soft soil foundation by using cement-soil mixing pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310365799XA CN103422497A (en) | 2013-08-21 | 2013-08-21 | Method for reinforcing soft soil foundation by using cement-soil mixing pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103422497A true CN103422497A (en) | 2013-12-04 |
Family
ID=49647846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310365799XA Pending CN103422497A (en) | 2013-08-21 | 2013-08-21 | Method for reinforcing soft soil foundation by using cement-soil mixing pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103422497A (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103882860A (en) * | 2014-02-18 | 2014-06-25 | 周兆弟 | Triangular quincuncial cement mixing pile and forming method |
| CN103882862A (en) * | 2014-02-18 | 2014-06-25 | 周兆弟 | Quincuncial cement mixing pile and forming method |
| CN104452752A (en) * | 2014-11-27 | 2015-03-25 | 河南黄河勘测设计研究院 | Construction method for cement mixing pile in high-dense hardening clay layer |
| CN104480932A (en) * | 2014-12-15 | 2015-04-01 | 中铁十九局集团有限公司 | Saline alkali muddy soil ground cement mixing pile construction method |
| CN104895064A (en) * | 2015-04-30 | 2015-09-09 | 沈建东 | Deep cement mixing pile construction process |
| CN104947655A (en) * | 2015-05-14 | 2015-09-30 | 中国能源建设集团广东电力工程局有限公司 | Construction technology and equipment for cement mixing pile |
| CN105604052A (en) * | 2016-03-08 | 2016-05-25 | 上海强劲地基工程股份有限公司 | High-low-position conversion slurry spraying equipment and high-low-position slurry spraying method for constructing cement soil mixing piles |
| CN105818268A (en) * | 2016-05-25 | 2016-08-03 | 山推建友机械股份有限公司 | Offshore soft base layer processing stirring device and reinforcement process thereof |
| CN105926597A (en) * | 2016-04-26 | 2016-09-07 | 浙江水利水电学院 | Cement mixing pile treatment method suitable for reclamation projects |
| CN105951670A (en) * | 2016-04-26 | 2016-09-21 | 浙江水利水电学院 | Construction method for improving bearing capacity of seawall armor foundation |
| CN106703065A (en) * | 2016-11-17 | 2017-05-24 | 中国电建集团贵州工程公司 | Underwater construction method for rock anchor rod draught fan foundation |
| CN107245996A (en) * | 2017-02-16 | 2017-10-13 | 昆山市交通工程有限公司 | Soft soil roadbed cement mixing pile constructing process |
| CN108221969A (en) * | 2017-12-15 | 2018-06-29 | 中铁五局集团有限公司 | Highland and severe cold swampy area soft foundation cement mixing pile constructing process |
| CN108396737A (en) * | 2018-05-14 | 2018-08-14 | 东南大学 | The Soil-cement pile material of Strengthening Wet soil base |
| CN109013637A (en) * | 2018-06-08 | 2018-12-18 | 中建三局第二建设工程有限责任公司 | A kind of in-situ modified solidification processing method of industry white clay |
| CN110468938A (en) * | 2019-07-02 | 2019-11-19 | 北京质诚捷讯水利工程有限公司 | A kind of municipal drain pipeline construction method |
| CN115045266A (en) * | 2022-06-24 | 2022-09-13 | 山东汇通建设集团有限公司 | Slurry-jet pile construction method for foundation stabilization |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19503177C1 (en) * | 1995-02-01 | 1996-07-18 | Bauer Spezialtiefbau | Method of mfr. of concrete posts submerged in ground |
| CN102021906A (en) * | 2010-12-16 | 2011-04-20 | 河南省新开元路桥工程咨询有限公司 | Method for reinforcing soft soil foundation at deep mixing pile |
| CN102218765A (en) * | 2010-04-16 | 2011-10-19 | 陈若飞 | Prefabricated pulp-beating method protection technique for cement bonded board |
| CN102261068A (en) * | 2011-05-06 | 2011-11-30 | 南京工程学院 | Deep mixing pile |
| CN103046557A (en) * | 2012-12-04 | 2013-04-17 | 北京建材地质工程公司 | Foundation pit water-sealing supporting method by using long spiral cement soil mixing structural steel pile |
-
2013
- 2013-08-21 CN CN201310365799XA patent/CN103422497A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19503177C1 (en) * | 1995-02-01 | 1996-07-18 | Bauer Spezialtiefbau | Method of mfr. of concrete posts submerged in ground |
| CN102218765A (en) * | 2010-04-16 | 2011-10-19 | 陈若飞 | Prefabricated pulp-beating method protection technique for cement bonded board |
| CN102021906A (en) * | 2010-12-16 | 2011-04-20 | 河南省新开元路桥工程咨询有限公司 | Method for reinforcing soft soil foundation at deep mixing pile |
| CN102261068A (en) * | 2011-05-06 | 2011-11-30 | 南京工程学院 | Deep mixing pile |
| CN103046557A (en) * | 2012-12-04 | 2013-04-17 | 北京建材地质工程公司 | Foundation pit water-sealing supporting method by using long spiral cement soil mixing structural steel pile |
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103882860A (en) * | 2014-02-18 | 2014-06-25 | 周兆弟 | Triangular quincuncial cement mixing pile and forming method |
| CN103882862A (en) * | 2014-02-18 | 2014-06-25 | 周兆弟 | Quincuncial cement mixing pile and forming method |
| CN103882860B (en) * | 2014-02-18 | 2016-09-28 | 周兆弟 | Triangle Flos Mume cement mixing pile and manufacturing process |
| CN103882862B (en) * | 2014-02-18 | 2016-08-24 | 周兆弟 | Flos Mume cement mixing pile and manufacturing process |
| CN104452752A (en) * | 2014-11-27 | 2015-03-25 | 河南黄河勘测设计研究院 | Construction method for cement mixing pile in high-dense hardening clay layer |
| CN104480932A (en) * | 2014-12-15 | 2015-04-01 | 中铁十九局集团有限公司 | Saline alkali muddy soil ground cement mixing pile construction method |
| CN104480932B (en) * | 2014-12-15 | 2016-06-01 | 中铁十九局集团有限公司 | The soft base cement mixing pile construction method of saline alkali mud matter |
| CN104895064A (en) * | 2015-04-30 | 2015-09-09 | 沈建东 | Deep cement mixing pile construction process |
| CN104947655A (en) * | 2015-05-14 | 2015-09-30 | 中国能源建设集团广东电力工程局有限公司 | Construction technology and equipment for cement mixing pile |
| CN105604052A (en) * | 2016-03-08 | 2016-05-25 | 上海强劲地基工程股份有限公司 | High-low-position conversion slurry spraying equipment and high-low-position slurry spraying method for constructing cement soil mixing piles |
| CN105926597A (en) * | 2016-04-26 | 2016-09-07 | 浙江水利水电学院 | Cement mixing pile treatment method suitable for reclamation projects |
| CN105951670A (en) * | 2016-04-26 | 2016-09-21 | 浙江水利水电学院 | Construction method for improving bearing capacity of seawall armor foundation |
| CN105818268A (en) * | 2016-05-25 | 2016-08-03 | 山推建友机械股份有限公司 | Offshore soft base layer processing stirring device and reinforcement process thereof |
| CN106703065A (en) * | 2016-11-17 | 2017-05-24 | 中国电建集团贵州工程公司 | Underwater construction method for rock anchor rod draught fan foundation |
| CN106703065B (en) * | 2016-11-17 | 2019-02-12 | 中国电建集团贵州工程公司 | Rock-bolt blower foundation underwater construction engineering method |
| CN107245996A (en) * | 2017-02-16 | 2017-10-13 | 昆山市交通工程有限公司 | Soft soil roadbed cement mixing pile constructing process |
| CN108221969A (en) * | 2017-12-15 | 2018-06-29 | 中铁五局集团有限公司 | Highland and severe cold swampy area soft foundation cement mixing pile constructing process |
| CN108221969B (en) * | 2017-12-15 | 2020-05-19 | 中铁五局集团有限公司 | Construction process of cement mixing pile for soft foundation in plateau alpine and swamp areas |
| CN108396737A (en) * | 2018-05-14 | 2018-08-14 | 东南大学 | The Soil-cement pile material of Strengthening Wet soil base |
| CN109013637A (en) * | 2018-06-08 | 2018-12-18 | 中建三局第二建设工程有限责任公司 | A kind of in-situ modified solidification processing method of industry white clay |
| CN110468938A (en) * | 2019-07-02 | 2019-11-19 | 北京质诚捷讯水利工程有限公司 | A kind of municipal drain pipeline construction method |
| CN115045266A (en) * | 2022-06-24 | 2022-09-13 | 山东汇通建设集团有限公司 | Slurry-jet pile construction method for foundation stabilization |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103422497A (en) | Method for reinforcing soft soil foundation by using cement-soil mixing pile | |
| CN102146679B (en) | Construction method for complex geological section earth pressure balance shield passing middle air shaft | |
| CN103422501B (en) | Anti-floating anchor rod structure in sand seam geology and construction method thereof | |
| CN103422511A (en) | Reinforcement method for transmission tower shallow base foundation under composite soft soil foundation | |
| CN103556631B (en) | The one-tenth pile operation method of agitation pile | |
| CN101555689B (en) | Method and device for pre-consolidating mixed hydraulically-filled soft soil foundation | |
| CN103437340A (en) | Method for strengthening soft foundation through high-pressure jet grouting | |
| CN102155012A (en) | Foundation reinforcing construction method employing powder high-pressure injection grouting | |
| CN203361143U (en) | Combination structure of high-pressure jet grouting pile and prestressed pipe pile | |
| CN103437337A (en) | Method for reinforcing soft soil foundation in cushion layer replacement mode | |
| CN105569071A (en) | Cement-based material underwater grouting or mud-jack rock block foundation construction method | |
| CN205171496U (en) | Foundation stabilization high pressure jet slip casting device | |
| CN105040683A (en) | Informatization construction method for cement mixing piles | |
| CN111676987A (en) | Construction method for backfilling construction of construction fertilizer tank by vibrating, slurry-flushing and ramming method | |
| CN102235008B (en) | Engineering pile deviation preventing structure of soft soil foundation and pretreatment method | |
| CN105971638A (en) | Application of WSS construction method in shield tool changing reinforcement of water-rich sand layer | |
| CN204385724U (en) | A kind of polyurethane gravel pile | |
| CN113564977A (en) | Construction method of soft soil foundation with high water content | |
| CN101514550A (en) | Method using belled mixing piles for treating double-layer soft foundation | |
| CN101514549B (en) | Method using intermediate mixing piles for treating three-layer soft foundation | |
| CN206157726U (en) | Composite pile type structure suitable for coast deep dredger fill soil foundation handle | |
| CN105951670B (en) | A kind of raising sea wall mask foundation bearing capacity construction method | |
| CN201738324U (en) | Project pile deflection prevention structure used on soft soil foundation | |
| CN104746512A (en) | Reinforced cement soil composite pile and method for forming the pile | |
| CN101793024B (en) | Construction method for multi-head small-diameter deep mixing and high-pressure jet combined anti-seepage wall of foundation pit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20131204 |