CN203307817U - Double-row pile structure provided with steel tube prestressed concrete for connection between front-row piles and rear-row piles - Google Patents
Double-row pile structure provided with steel tube prestressed concrete for connection between front-row piles and rear-row piles Download PDFInfo
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- CN203307817U CN203307817U CN2012206610680U CN201220661068U CN203307817U CN 203307817 U CN203307817 U CN 203307817U CN 2012206610680 U CN2012206610680 U CN 2012206610680U CN 201220661068 U CN201220661068 U CN 201220661068U CN 203307817 U CN203307817 U CN 203307817U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 121
- 239000010959 steel Substances 0.000 title claims abstract description 121
- 239000011513 prestressed concrete Substances 0.000 title claims abstract description 54
- 238000004873 anchoring Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 abstract description 4
- 239000004567 concrete Substances 0.000 abstract 2
- 238000010276 construction Methods 0.000 description 9
- 238000009412 basement excavation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010205 computational analysis Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
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Abstract
The utility model relates to a double-row pile structure provided with steel tube prestressed concrete for the connection between front-row piles and rear-row piles, and belongs to the technical field of building foundation pit engineering and slope engineering. The double-row pile structure comprises multiple groups of the front-row piles and the rear-row piles, a top beam I, a top beam II, a connecting beam, prestressed strands and steel tubes, wherein the front-row piles and the rear-row piles are arranged parallel to one another. The top beam I is arranged on the tops of the front-row piles. The top beam II is arranged on the tops of the rear-row piles. The top beam I and the top beam II are connected through the connecting beam. One or more steel tubes are arranged at the intervals of 2-3m vertically on pile bodies of the front-row piles and the rear-row piles. The prestressed strands penetrate through the steel tubes. The steel tubes, the prestressed strands and fine aggregate concrete injected into the steel tubes form the steel tube prestressed concrete. According to the double-row pile structure, after the steel tubes and the prestressed strands are arranged at the intervals of 2-3m vertically on the front-row piles and the rear-row piles, and the fine aggregate concrete is injected into the steel tubes to form the steel tube prestressed concrete, the overall stability of a supporting structure can be effectively improved, and the displacement of the supporting structure is reduced.
Description
Technical field
The utility model relates to a kind of Double-row-piles Structure that the steel pipe prestressed concrete connects the front and back campshed that is provided with, and belongs to architecture Foundation Pit Engineering and slope project technical field.
Background technology
Along with the quickening of expanding economy and urbanization process, the building of inner city is more and more intensive, and particularly high-rise, super highrise building is newly-built in a large number, the basement of building towards more greatly, Shenzhen Development Bank more.At present, the normal pattern foundation pit supporting structure scheme adopted of China has: put slope excavation, soil-nail wall support, pile-anchor retaining, cement-soil gravity type retaining wall, campshed add the support patterns such as inner supporting structure, double-row pile.Put slope excavation, soil-nail wall support, the pile-anchor retaining construction will inevitably exceed building line, but because the soil beyond building line is subject to the national policy restriction, or need to permit through relevant departments, this has brought great inconvenience for smooth construction of building basement.Campshed adds that the inner supporting structure cost is high, long construction period and the basement structure construction scope of operation few.Retaining Structure with Double-row Piles in the past has the characteristics of its good integrity, but overturning or slip resistance analysis and distortion are difficult to meet existing design specifications requirement.Therefore, existing conventional supporting and protection structure has certain limitation.
Summary of the invention
The purpose of this utility model is to provide a kind of resistance to overturning that improves can reduce the Retaining Structure with Double-row Piles of displacement again, to solve the appeal problem.
The technical solution of the utility model is: a kind of Double-row-piles Structure that is provided with steel pipe prestressed concrete connection front and back campshed comprises the many groups of front campsheds 1 that are arranged parallel to each other and rear campshed 2, hat beam I 3, hat beam II 4, linking beam 5, prestress wire 6 and steel pipe 9.The stake top of front campshed 1 and rear campshed 2 is respectively equipped with hat beam I 3 and hat beam II 4, between hat beam I 3 and hat beam II 4, connect by linking beam 5, on the pile body of front campshed 1 and rear campshed 2, vertical interval 2 ~ 3m is provided with one or more steel pipe 9, in steel pipe 9, be penetrated with prestress wire 6, steel pipe 9 and prestress wire 6 and the pea gravel concreten 10 injected in steel pipe 9 form the steel pipe prestressed concrete.
The rectangular array arrangement of pile body layout and the each interval of described front campshed 1 and rear campshed 2 are arranged.
Described every or before root the pile body equal intervals of campshed 1 and rear campshed 2 or unequal-interval along supporting sideline direction, be provided with the steel pipe prestressed concrete.
On the pile body of the described front campshed 1 that is provided with the steel pipe prestressed concrete and rear campshed 2, the vertical supporting of correspondence position sideline direction is equipped with respectively protection tube I 7 and protection tube II 8; the two ends of steel pipe prestressed concrete are contained in protection tube I 7 and protection tube II 8, are perfused with pea gravel concreten 10 in protection tube I 7 and protection tube II 8.
The diameter of described protection tube I 7 and protection tube II 8 is 160～200mm, and the diameter of the steel pipe 9 in the steel pipe prestressed concrete is 80～100mm.
Described protection tube I 7 and the optional pvc pipe of protection tube II 8 or PE pipe.
Described prestress wire 6 anchored end are utilized anchor plate 11 and anchor slab 12 lockings.
It is fixing that described prestress wire 6 ends adopt High-Pressure Grouting Method to inject pea gravel concreten 10 formation enlarged footing anchoring bodys 13.
Operating procedure of the present utility model is:
(1), according to the requirement of Geological condition and the computational analysis of foundation ditch safety and stability, determine diameter (cross-sectional sizes), pile spacing and the array pitch of forward and backward campshed; Long, the pile body cross-sectional strength of stake and Reinforcement Design to forward and backward campshed; Determine the stake apical cap beam section size of forward and backward campshed and carry out arrangement of reinforcement calculating; Determine sectional dimension, spacing and the quantity of reinforcement of linking beam; Determine kind, diameter and the lock value of stress distribution steel strand; Choose protection tube and steel pipe model and size; Determine the excavation operation.
(2) campshed 2 after the construction, pre-buried protection tube; The stake type is determined by design.
(3) campshed 1 before the construction, pre-buried protection tube; The stake type is determined by design.
(4) stake apical cap beam and the linking beam of the forward and backward campshed of construction, make whole support system form an integral body, each several part cooperative bearing, distortion.
(5) soil excavation and transportation.
(6) insert steel pipe, construction stress distribution steel strand, adopt High-Pressure Grouting Method to inject pea gravel concreten formation enlarged footing anchoring body to the steel strand end and fix.
(7) in anchored end, steel strand are applied to prestressing force, the anchoring locking.
(8) in steel pipe, injecting pea gravel concreten fills.
The beneficial effects of the utility model are: two groups of front campsheds that are arranged in parallel and rear campshed and stake apical cap beam thereof and linking beam have formed the main frame of supporting and protection structure; By stake top linking beam, connect the lateral deformation stiffness that forward and backward campshed can increase supporting and protection structure, but the resistance to overturning of supporting and protection structure and displacement generally can not meet the design specifications requirement; On this basis, vertically every 2 ~ 3m, be provided with steel pipe and steel strand and inject after pea gravel concreten forms the steel pipe prestressed concrete together at the front and back campshed, can effectively improve the resistance to overturning of supporting and protection structure, reducing the displacement of supporting and protection structure.
The accompanying drawing explanation
Fig. 1 is layout schematic diagram of the present utility model;
Fig. 2 is horizontal section schematic diagram of the present utility model;
Fig. 3 is steel pipe prestressed reinforced concrete construction schematic diagram of the present utility model;
Fig. 4 is layout partial schematic diagram of the present utility model;
In figure, each label is: 1: front campshed, 2: rear campshed, 3: hat beam I, 4: hat beam II, 5: linking beam; 6: prestress wire, 7: protection tube I, 8: protection tube II, 9: steel pipe; 10: pea gravel concreten, 11: anchor plate, 12: anchor slab, 13: the enlarged footing anchoring body.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail, but content of the present utility model is not limited to described scope.
Embodiment 1: as Figure 1-4, a kind of Double-row-piles Structure that is provided with steel pipe prestressed concrete connection front and back campshed, comprise 6 groups of front campsheds 1 that are arranged parallel to each other and rear campshed 2, hat beam I 3, hat beam II 4, linking beam 5, prestress wire 6 and steel pipe 9.The stake top of front campshed 1 and rear campshed 2 is respectively equipped with hat beam I 3 and hat beam II 4, between hat beam I 3 and hat beam II 4, connect by linking beam 5, on the pile body of front campshed 1 and rear campshed 2, vertical interval 2m is provided with a steel pipe 9, in steel pipe 9, be penetrated with prestress wire 6, steel pipe 9 and prestress wire 6 and the pea gravel concreten 10 injected in steel pipe 9 form the steel pipe prestressed concrete.
The rectangular array arrangement of pile body layout and the each interval of described front campshed 1 and rear campshed 2 are arranged.
Described every or before root campshed 1 and rear campshed 2 the pile body equal intervals along supporting sideline direction, be provided with the steel pipe prestressed concrete.
On the pile body of the described front campshed 1 that is provided with the steel pipe prestressed concrete and rear campshed 2, the vertical supporting of correspondence position sideline direction is equipped with respectively protection tube I 7 and protection tube II 8; the two ends of steel pipe prestressed concrete are contained in protection tube I 7 and protection tube II 8, are perfused with pea gravel concreten 10 in protection tube I 7 and protection tube II 8.
The diameter of described protection tube I 7 and protection tube II 8 is 160mm, and the diameter of the steel pipe 9 in the steel pipe prestressed concrete is 80mm.
Described protection tube I 7 and protection tube II 8 are pvc pipe.
Described prestress wire steel strand 6 anchored end are utilized anchor plate 11 and anchor slab 12 lockings.
It is fixing that described prestress wire steel strand 6 ends adopt High-Pressure Grouting Method to inject pea gravel concreten 10 formation enlarged footing anchoring bodys 13.
Embodiment 2: as Figure 1-4, a kind of Double-row-piles Structure that is provided with steel pipe prestressed concrete connection front and back campshed, comprise 8 groups of front campsheds 1 that are arranged parallel to each other and rear campshed 2, hat beam I 3, hat beam II 4, linking beam 5, prestress wire 6 and steel pipe 9.The stake top of front campshed 1 and rear campshed 2 is respectively equipped with hat beam I 3 and hat beam II 4, between hat beam I 3 and hat beam II 4, connect by linking beam 5, on the pile body of front campshed 1 and rear campshed 2, vertical interval 3m is provided with 2 steel pipes 9, in steel pipe 9, be penetrated with prestress wire 6, steel pipe 9 and prestress wire 6 and the pea gravel concreten 10 injected in steel pipe 9 form the steel pipe prestressed concrete.
The rectangular array arrangement of pile body layout and the each interval of described front campshed 1 and rear campshed 2 are arranged.
Described every or before root on the pile body of campshed 1 and rear campshed 2 unequal-interval along supporting sideline direction, be provided with the steel pipe prestressed concrete.
On the pile body of the described front campshed 1 that is provided with the steel pipe prestressed concrete and rear campshed 2, the vertical supporting of correspondence position sideline direction is equipped with respectively protection tube I 7 and protection tube II 8; the two ends of steel pipe prestressed concrete are contained in protection tube I 7 and protection tube II 8, are perfused with pea gravel concreten 10 in protection tube I 7 and protection tube II 8.
The diameter of described protection tube I 7 and protection tube II 8 is 200mm, and the diameter of the steel pipe 9 in the steel pipe prestressed concrete is 100mm.
Described protection tube I 7 and protection tube II 8 are the PE pipe.
Described prestress wire steel strand 6 anchored end are utilized anchor plate 11 and anchor slab 12 lockings.
It is fixing that described prestress wire steel strand 6 ends adopt High-Pressure Grouting Method to inject pea gravel concreten 10 formation enlarged footing anchoring bodys 13.
Embodiment 3: as Figure 1-4, a kind of Double-row-piles Structure that is provided with steel pipe prestressed concrete connection front and back campshed, comprise 9 groups of front campsheds 1 that are arranged parallel to each other and rear campshed 2, hat beam I 3, hat beam II 4, linking beam 5, prestress wire 6 and steel pipe 9.The stake top of front campshed 1 and rear campshed 2 is respectively equipped with hat beam I 3 and hat beam II 4, between hat beam I 3 and hat beam II 4, connect by linking beam 5, on the pile body of front campshed 1 and rear campshed 2, vertical interval 2.5m is provided with 3 steel pipes 9, in steel pipe 9, be penetrated with prestress wire 6, steel pipe 9 and prestress wire 6 and the pea gravel concreten 10 injected in steel pipe 9 form the steel pipe prestressed concrete.
The rectangular array arrangement of pile body layout and the each interval of described front campshed 1 and rear campshed 2 are arranged.
Described every or before root campshed 1 and rear campshed 2 the pile body equal intervals along supporting sideline direction, be provided with the steel pipe prestressed concrete.
On the pile body of the described front campshed 1 that is provided with the steel pipe prestressed concrete and rear campshed 2, the vertical supporting of correspondence position sideline direction is equipped with respectively protection tube I 7 and protection tube II 8; the two ends of steel pipe prestressed concrete are contained in protection tube I 7 and protection tube II 8, are perfused with pea gravel concreten 10 in protection tube I 7 and protection tube II 8.
The diameter of described protection tube I 7 and protection tube II 8 is 180mm, and the diameter of the steel pipe 9 in the steel pipe prestressed concrete is 90mm.
Embodiment 4: as Figure 1-4, a kind of Double-row-piles Structure that is provided with steel pipe prestressed concrete connection front and back campshed, comprise 12 groups of front campsheds 1 that are arranged parallel to each other and rear campshed 2, hat beam I 3, hat beam II 4, linking beam 5, prestress wire 6 and steel pipe 9.The stake top of front campshed 1 and rear campshed 2 is respectively equipped with hat beam I 3 and hat beam II 4, between hat beam I 3 and hat beam II 4, connect by linking beam 5, on the pile body of front campshed 1 and rear campshed 2, vertical interval 2.3m is provided with 4 steel pipes 9, in steel pipe 9, be penetrated with prestress wire 6, steel pipe 9 and prestress wire 6 and the pea gravel concreten 10 injected in steel pipe 9 form the steel pipe prestressed concrete.
The rectangular array arrangement of pile body layout and the each interval of described front campshed 1 and rear campshed 2 are arranged.
Described every or before root on the pile body of campshed 1 and rear campshed 2 unequal-interval along supporting sideline direction, be provided with the steel pipe prestressed concrete.
On the pile body of the described front campshed 1 that is provided with the steel pipe prestressed concrete and rear campshed 2, the vertical supporting of correspondence position sideline direction is equipped with respectively protection tube I 7 and protection tube II 8; the two ends of steel pipe prestressed concrete are contained in protection tube I 7 and protection tube II 8, are perfused with pea gravel concreten 10 in protection tube I 7 and protection tube II 8.
Embodiment 5: as Figure 1-4, a kind of Double-row-piles Structure that is provided with steel pipe prestressed concrete connection front and back campshed, comprise 4 groups of front campsheds 1 that are arranged parallel to each other and rear campshed 2, hat beam I 3, hat beam II 4, linking beam 5, prestress wire 6 and steel pipe 9.The stake top of front campshed 1 and rear campshed 2 is respectively equipped with hat beam I 3 and hat beam II 4, between hat beam I 3 and hat beam II 4, connect by linking beam 5, on the pile body of front campshed 1 and rear campshed 2, vertical interval 2.7m is provided with 5 steel pipes 9, in steel pipe 9, be penetrated with prestress wire 6, steel pipe 9 and prestress wire 6 and the pea gravel concreten 10 injected in steel pipe 9 form the steel pipe prestressed concrete.
The rectangular array arrangement of pile body layout and the each interval of described front campshed 1 and rear campshed 2 are arranged.
Described every or before root campshed 1 and rear campshed 2 the pile body equal intervals along supporting sideline direction, be provided with the steel pipe prestressed concrete.
Embodiment 6: as Figure 1-4, a kind of Double-row-piles Structure that is provided with steel pipe prestressed concrete connection front and back campshed, comprise 16 groups of front campsheds 1 that are arranged parallel to each other and rear campshed 2, hat beam I 3, hat beam II 4, linking beam 5, prestress wire 6 and steel pipe 9.The stake top of front campshed 1 and rear campshed 2 is respectively equipped with hat beam I 3 and hat beam II 4, between hat beam I 3 and hat beam II 4, connect by linking beam 5, on the pile body of front campshed 1 and rear campshed 2, vertical interval 2.8m is provided with 3 steel pipes 9, in steel pipe 9, be penetrated with prestress wire 6, steel pipe 9 and prestress wire 6 and the pea gravel concreten 10 injected in steel pipe 9 form the steel pipe prestressed concrete.
Claims (8)
1. one kind is provided with the Double-row-piles Structure that the steel pipe prestressed concrete connects the front and back campshed, it is characterized in that: comprise the many groups of front campsheds (1) that are arranged parallel to each other and rear campshed (2), hat beam I (3), hat beam II (4), linking beam (5), prestress wire (6) and steel pipe (9); The stake top of front campshed (1) and rear campshed (2) is respectively equipped with hat beam I (3) and hat beam II (4), between hat beam I (3) and hat beam II (4), connect by linking beam (5), on the pile body of front campshed (1) and rear campshed (2), vertical interval 2 ~ 3m is provided with one or more steel pipe (9), in steel pipe (9), be penetrated with prestress wire (6), steel pipe (9) and prestress wire (6) and the pea gravel concreten (10) injected in steel pipe (9) form the steel pipe prestressed concrete.
According to claim 1 be provided with the steel pipe prestressed concrete connect before and after the Double-row-piles Structure of campshed, it is characterized in that: the rectangular array arrangement of pile body layout and the each interval of described front campshed (1) and rear campshed (2) are arranged.
According to claim 1 be provided with the steel pipe prestressed concrete connect before and after the Double-row-piles Structure of campshed, it is characterized in that: described every or before root the pile body equal intervals of campshed (1) and rear campshed (2) or unequal-interval along supporting sideline direction, be provided with the steel pipe prestressed concrete.
According to claim 1 be provided with the steel pipe prestressed concrete connect before and after the Double-row-piles Structure of campshed; it is characterized in that: on the pile body of the described front campshed (1) that is provided with the steel pipe prestressed concrete and rear campshed (2), the vertical supporting of correspondence position sideline direction is equipped with respectively protection tube I (7) and protection tube II (8); the two ends of steel pipe prestressed concrete are contained in protection tube I (7) and protection tube II (8), are perfused with pea gravel concreten (10) in protection tube I (7) and protection tube II (8).
According to claim 4 be provided with the steel pipe prestressed concrete connect before and after the Double-row-piles Structure of campshed; it is characterized in that: the diameter of described protection tube I (7) and protection tube II (8) is 160～200mm, and the diameter of the steel pipe (9) in the steel pipe prestressed concrete is 80～100mm.
6. the Double-row-piles Structure that is provided with steel pipe prestressed concrete connection front and back campshed according to claim 4, is characterized in that: described protection tube I (7) and the optional pvc pipe of protection tube II (8) or PE pipe.
7. according to the described Double-row-piles Structure that is provided with steel pipe prestressed concrete connection front and back campshed of claim 1 or 4, it is characterized in that: described prestress wire (6) anchored end is utilized anchor plate (11) and anchor slab (12) locking.
8. according to the described Double-row-piles Structure that is provided with steel pipe prestressed concrete connection front and back campshed of claim 1 or 4, it is characterized in that: described prestress wire (6) end adopts High-Pressure Grouting Method to inject pea gravel concreten (10) formation enlarged footing anchoring body (13) and fixes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206610680U CN203307817U (en) | 2012-12-05 | 2012-12-05 | Double-row pile structure provided with steel tube prestressed concrete for connection between front-row piles and rear-row piles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206610680U CN203307817U (en) | 2012-12-05 | 2012-12-05 | Double-row pile structure provided with steel tube prestressed concrete for connection between front-row piles and rear-row piles |
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| Publication Number | Publication Date |
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| CN203307817U true CN203307817U (en) | 2013-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012206610680U Expired - Fee Related CN203307817U (en) | 2012-12-05 | 2012-12-05 | Double-row pile structure provided with steel tube prestressed concrete for connection between front-row piles and rear-row piles |
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| CN (1) | CN203307817U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643687A (en) * | 2013-12-25 | 2014-03-19 | 中铁二院工程集团有限责任公司 | Frame type anti-skid cutting structure |
| CN104563129A (en) * | 2014-12-31 | 2015-04-29 | 云南建工基础工程有限责任公司 | Double-row pile structure with cored horizontal rotary jet grouting pile on pile body |
| CN106245657A (en) * | 2016-08-25 | 2016-12-21 | 安徽省城建设计研究总院有限公司 | A kind of purlin anchor supporting construction for pattern foundation pit supporting structure |
| CN107083774A (en) * | 2017-04-17 | 2017-08-22 | 浙江中成建工集团有限公司 | Multiple-layer horizontal connects double steel sheet piling pit supporting construction and its construction method |
| CN107326910A (en) * | 2016-04-29 | 2017-11-07 | 中国电建集团贵阳勘测设计研究院有限公司 | Method and structure for slope support by adopting prefabricated bamboo cavity |
| CN108360529A (en) * | 2018-02-07 | 2018-08-03 | 深圳宏业基岩土科技股份有限公司 | The joint structure of double-row pile apical cap beam and linking beam |
| CN113668556A (en) * | 2021-08-05 | 2021-11-19 | 深圳市盛业建筑科技(集团)有限公司 | Double-row pile supporting method for adding connecting beams in soil layer |
-
2012
- 2012-12-05 CN CN2012206610680U patent/CN203307817U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643687A (en) * | 2013-12-25 | 2014-03-19 | 中铁二院工程集团有限责任公司 | Frame type anti-skid cutting structure |
| CN104563129A (en) * | 2014-12-31 | 2015-04-29 | 云南建工基础工程有限责任公司 | Double-row pile structure with cored horizontal rotary jet grouting pile on pile body |
| CN107326910A (en) * | 2016-04-29 | 2017-11-07 | 中国电建集团贵阳勘测设计研究院有限公司 | Method and structure for slope support by adopting prefabricated bamboo cavity |
| CN106245657A (en) * | 2016-08-25 | 2016-12-21 | 安徽省城建设计研究总院有限公司 | A kind of purlin anchor supporting construction for pattern foundation pit supporting structure |
| CN106245657B (en) * | 2016-08-25 | 2018-12-18 | 安徽省城建设计研究总院股份有限公司 | A kind of purlin anchor support construction for pattern foundation pit supporting structure |
| CN107083774A (en) * | 2017-04-17 | 2017-08-22 | 浙江中成建工集团有限公司 | Multiple-layer horizontal connects double steel sheet piling pit supporting construction and its construction method |
| CN108360529A (en) * | 2018-02-07 | 2018-08-03 | 深圳宏业基岩土科技股份有限公司 | The joint structure of double-row pile apical cap beam and linking beam |
| CN113668556A (en) * | 2021-08-05 | 2021-11-19 | 深圳市盛业建筑科技(集团)有限公司 | Double-row pile supporting method for adding connecting beams in soil layer |
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| 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: 20131127 Termination date: 20151205 |
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| EXPY | Termination of patent right or utility model |