CN106223339B - Ultra-deep foundation pit concrete downward pumping supporting system - Google Patents
Ultra-deep foundation pit concrete downward pumping supporting system Download PDFInfo
- Publication number
- CN106223339B CN106223339B CN201610554634.0A CN201610554634A CN106223339B CN 106223339 B CN106223339 B CN 106223339B CN 201610554634 A CN201610554634 A CN 201610554634A CN 106223339 B CN106223339 B CN 106223339B
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- China
- Prior art keywords
- pump line
- foundation pit
- pump
- support unit
- tower crane
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- 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
- 238000005086 pumping Methods 0.000 title abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 22
- 239000010959 steel Substances 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000011159 matrix material Substances 0.000 claims description 3
- 239000004576 sand Substances 0.000 description 21
- 239000004568 cement Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000011398 Portland cement Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000011401 Portland-fly ash cement Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention provides a support system for downward pumping of concrete of an ultra-deep foundation pit, which comprises a plurality of tower crane standard knots, a plurality of pump pipe well-shaped fixing frames, a channel, a pump machine, a pump pipe and a tower crane base, wherein the tower crane base is arranged at the bottom of the foundation pit, the plurality of tower crane standard knots are sequentially and fixedly arranged on the tower crane base to form a support unit, the height of the support unit is not less than the depth of the foundation pit, the support unit is connected with the edge of the foundation pit through the channel, the pump machine is arranged at the edge of the foundation pit, the pump pipe is communicated with the pump machine and is communicated with the bottom of the foundation pit through the channel and the support unit, the pump pipe is respectively and fixedly arranged with the support unit through the plurality of pump pipe well-shaped fixing frames, and the support system adopts the tower crane standard knots as a support form to replace a scheme of adopting a steel pipe scaffold with higher difficulty for supporting, and provides guarantee for concrete pouring.
Description
Technical field
The present invention relates to technical field of building construction, especially a kind of ultra-deep foundation pit concrete pumps downwards support system.
Background technology
It is larger that concrete difficulty of construction is poured under ultra-deep foundation pit, is related to that factor is more, selects a kind of safe and reliable to pour mode
Method is relatively difficult, and conventional steel pipe scaffold support system quantities is big, and difficulty of construction is big, and danger coefficient is high, and attachment is complicated.
Invention content
In order to solve the above-mentioned technical problem, a kind of ultra-deep foundation pit concrete is provided and pumps support system downwards, is passed through
The form for making to support using standard section of tower crane, instead of higher using difficulty when encountering deep foundation ditch concrete pumping in work progress
Steel pipe scaffold support scheme, efficiently solve the above problem, guarantee provided for concreting.
A kind of ultra-deep foundation pit concrete provided by the invention pumps downwards support system, including multiple standard section of tower crane, more
A pump line well word fixed frame, channel, pump machine, pump line and tower crane base, the tower crane base are arranged in the bottom of the foundation pit, institute
It states multiple standard section of tower crane and is fixed at successively in the tower crane base and form support unit, the height of the support unit is not
Less than the depth of the foundation pit, the support unit is connect by the channel with the edge of the foundation pit, the pump machine setting
At the edge of the foundation pit, the pump line is connected with the pump machine and passes sequentially through the channel and the support unit and institute
The bottom for stating foundation pit is connected, and the pump line is set by multiple pump line well word fixed frames and support unit fixation respectively
It sets.
Further, further include attachment frame and anchor support, the attachment frame, which is nested with, to be led in the support unit with described
The lower section of road junction, the attachment frame are fixedly connected by the anchor support with the side wall of the foundation pit.
Further, multiple pump line well word fixed frames are fixedly connected with the support unit using fastener, and are connected
It is wrapped up using flexible material at place.
Further, the pump line well word fixed frame includes multiple steel pipes, and multiple steel pipes are arranged in parallel in pairs
Composition groined type shape is simultaneously fixedly connected with the support unit, and junction is wrapped up using flexible material.
Further, the pump line forms return bend in the bottom of the foundation pit.
Further, the return bend includes the first pump line, the second pump line, third pump line, the 4th pump line, the 5th pump line
With the 6th pump line, first pump line is arranged straight down, and first pump line extends to form to the right the second pump line of semicircle shape,
Second pump line extends to form third pump line straight up, and horizontal extension forms the 4th pump line, institute to the third pump line to the right
It states the 4th pump line and extends to form the 5th pump line straight down, horizontal extension forms the 6th pump line to the 5th pump line to the right, described
The low spot of second pump line is higher than the 6th pump line.
Further, second pump line and the 6th pump line lower part are both provided with cushion pad.
Further, the channel includes steel pipe skeleton, supporting beam and safety net, the both ends of the supporting beam respectively with institute
It states support unit to be fixedly connected with the edge of the foundation pit, the steel pipe skeleton is arranged in the supporting beam, the safety net
Length direction along the supporting beam is fixed on the steel pipe skeleton.
Further, the edge fixed connection place of the supporting beam and the foundation pit is provided with anchor, the anchoring
Device includes multiple spirals, and multiple spirals are at matrix arrangement.
Further, embedded at least 500 millimeters of the concrete cushion of multiple spirals.
In conclusion a kind of ultra-deep foundation pit concrete provided by the invention pumps downwards support system compared with prior art
It has the advantage that make the form that supports by using standard section of tower crane, instead of encountering deep base in work progress
The scheme supported using the higher steel pipe scaffold of difficulty when cheating concrete pumping, efficiently solves the above problem, is concrete
It pours and provides guarantee；The side wall of entire support unit and foundation pit is fixedly connected, the peace of support unit is further strengthened
Quan Xing；Using the structure of return bend, impact force of the high drop concrete to pump line bottom bend pipe is allowed for, therefore at pump line bottom
Return bend is arranged in portion, plays protection pump line, reduces concrete impact force, prevents the effect of plugging.
Description of the drawings
Fig. 1 is the overall structure diagram that a kind of ultra-deep foundation pit concrete provided by the invention pumps downwards support system；
Fig. 2 is the pump line well word fixed frame peace that a kind of ultra-deep foundation pit concrete provided by the invention pumps downwards support system
Assembling structure schematic diagram；
In figure：
1, standard section of tower crane；2, pump line well word fixed frame；3, channel；4, pump machine；
5, pump line；6, tower crane base；7, support unit；8, adhere to frame；
9, anchor support；10, return bend；11, anchor；21, fastener；
22, steel pipe；31, steel pipe skeleton；32, supporting beam；33, safety net；
101, the first pump line；102, the second pump line；103, third pump line；
104, the 4th pump line；105, the 5th pump line；106, the 6th pump line；
107, cushion pad；111, spiral.
Specific implementation mode
The present invention is described in further details in the following with reference to the drawings and specific embodiments：
As shown in Fig. 1 and figure, a kind of ultra-deep foundation pit concrete provided by the invention pumps downwards support system, including multiple
Standard section of tower crane 1,5 well word fixed frame 2 of multiple pump lines, channel 3, pump machine 4, pump line 5 and tower crane base 6, the setting of tower crane base 6 exist
The bottom of foundation pit, multiple standard section of tower crane 1 are fixed at composition support unit 7 in tower crane base 6 successively, support unit 7
Height is not less than the depth of foundation pit, and support unit 7 is connect by channel 3 with the edge of foundation pit, and pump machine 4 is arranged on the side of foundation pit
Edge, pump line 5 are connected with pump machine 4 and pass sequentially through channel 3 and support unit 7 is connected with the bottom of foundation pit, and pump line 5 leads to respectively
5 well word fixed frame 2 of multiple pump lines is crossed to be fixedly installed with support unit 7, by using the form that standard section of tower crane 1 is made to support,
Instead of the scheme encountered in work progress when deep foundation ditch concrete pumps using higher 22 scaffold support of steel pipe of difficulty, have
Effect solves the above problem, and guarantee is provided for concreting.
In a preferred embodiment, further include attachment frame 8 and anchor support 9, adhere to frame 8 and be nested in support unit 7
With the lower section of 3 junction of channel, attachment frame 8 is fixedly connected by anchor support 9 with the side wall of foundation pit, by entire support unit 7
It is fixedly connected with the side wall of foundation pit, further strengthens the safety of support unit 7.
In a preferred embodiment, 5 well word fixed frame 2 of multiple pump lines, which is fixed with support unit 7 using fastener 21, connects
It connects, and junction is wrapped up using flexible material, under the premise of guarantee is connected firmly, ensures the connection reliability of connecting portion, lead to
The usage time that flexible material package can guarantee connection is crossed, 5 well word fixed frame 2 of pump line includes multiple steel pipes 22, multiple steel pipes 22
Composition groined type shape is arranged in parallel in pairs and is fixedly connected with support unit 7, lower cost for material, and is applied suitable for various
Work scene.
In a preferred embodiment, pump line 5 forms return bend 10 in the bottom of foundation pit, and return bend 10 includes the
One pump line 101, the second pump line 102, third pump line 103, the 4th pump line 104, the 5th pump line 105 and the 6th pump line 106, the first pump
Pipe 101 is arranged straight down, and the first pump line 101 extends to form to the right the second pump line 102 of semicircle shape, and the second pump line 102 is vertical
It upwardly extends to form third pump line 103, horizontal extension forms the 4th pump line 104 to third pump line 103 to the right, and the 4th pump line 104 is perpendicular
Straight to be downwardly extending the 5th pump line 105, horizontal extension forms the 6th pump line 106, the second pump line 102 to the 5th pump line 105 to the right
Low spot be higher than the 6th pump line 106, the second pump line 102 and 106 lower part of the 6th pump line are both provided with cushion pad 107, using this
Kind structure allows for impact force of the high drop concrete to 5 bottom bend pipe of pump line, therefore return bend is arranged in 5 bottom of pump line
10, protection pump line 5 is played, concrete impact force is reduced, prevents the effect of plugging.
In a preferred embodiment, channel 3 includes 22 skeleton 31 of steel pipe, supporting beam 32 and safety net 33, supporting beam
32 both ends are fixedly connected with the edge of support unit 7 and foundation pit respectively, and 22 skeleton 31 of steel pipe is arranged in supporting beam 32, safety
Net 33 is fixed at along the length direction of supporting beam 32 on 22 skeleton 31 of steel pipe, and supporting beam 32 is fixedly connected with the edge of foundation pit
Place is provided with anchor 11, and anchor 11 includes multiple spirals 111, and multiple spirals 111 are more at matrix arrangement
Embedded at least 500 millimeters of the concrete cushion of a spiral 111, it is ensured that installation strength is enough, ensures safety.
The tower crane base and standard section of tower crane of Construction in Preparatory Stage need to judge whether to reinforce tower crane standard according to field condition
Section, the foundation platform of tower crane base should ensure that enough service times after concreting, and general 7 days or more, intensity should reach
It can implement the installation of standard section of tower crane to 80% or more of cap design of pile intensity, standard section of tower crane uses tower crane with tower crane base
Lifting, live standard section of tower crane must reach enough height, install tower crane base and standard section of tower crane, tower crane according to field condition
The anchoring that need to be carried out according to field condition to attachment point is set up in the making of attachment and channel.According to the concrete condition of construction site
Security protection is arranged, between spare enough pump line elbows when preventing pump line construction plugging to pour in choice arrangement pump machine and pump line
The disconnected time too long cold seam of formation, last emphasis are arranged the revolution setting of pump line bottom, it is contemplated that high drop concrete is to pump
The impact force of bottom of the tube bend pipe, therefore return bend is set in pump line bottom, protection pump line is played, concrete impact force is reduced, is prevented
The only effect of plugging ultimately forms the system supported as pump line using standard section of tower crane.
Two kinds of solutions are enumerated below for the case where two kinds of easy pluggings：One, coagulation is prevented by adjusting match ratio
Native plugging in pumping determines that the ratio of mud appropriate and water consumption, the cement consumption of pump concrete generally cannot be less than 300 kilograms often
Cubic meter, and indices should meet《Portland cement, Portland cement》(GBJI75-1992) and《Slag portland
Cement, Portland pozzolana cement, Portland fly ash cement》(GBJl344-1992) standard, the maximum ratio of mud are 0.6,
General preferably to control relatively good 0.4~0.6, the water consumption of concrete should be required according to the slump, and be come with reference to aggregate grading true
It is fixed, if it is meeting that the slump requires and water consumption is excessive, it is easy to during pump concrete, generate bleeding isolation and block up
Pipe should adjust the slump by improving aggregate grading, increasing additive and admixture at this time.The minimum cement of pump concrete
Dosage level-one should meet the requirements, to ensure the pumpability of concrete.Two, grading of aggregates and sand coarse aggregate ratio is unreasonable causes this feelings of plugging
Condition solves using the following method, 1. improves the grading and adjustment sand coarse aggregate ratio of sandstone, the circle or approximation that coarse aggregate preferably selects surface smooth
Circular aggregate, cobble is better than rubble, and gill shape stone contents should be less than 5% in rubble；The grading of coarse aggregate directly affects
Voidage and sand coarse aggregate ratio, to influence the pumpability of concrete, the continuous grading of generally common 5~25mm and 5~40mm；2. to thin
The requirement of aggregate, it is 2.5~3.2 middle sand preferably to use fineness modulus；15% is should be greater than by the sand of 0.315 sieve pore, if can reach
15%~30% is best；There is good grading, voidage is small, and coarse sand voidage is big, and pumpability is poor；Sand grains is meticulous, bleeding
Increase, concrete generates drying shrinkage, and pumping resistance is big.Plugging such as occurs because fine aggregate cannot meet pumping requirements；It can pass through
The methods of adjustment cement consumption, sand coarse aggregate ratio, improvement gradation of coarse aggregate, addition additive are resolved；3. the sand coarse aggregate ratio of pump concrete
It is required that the sand coarse aggregate ratio of pump concrete is mainly related with stone type, maximum particle diameter, the grading of sand and cement consumption.Pumped concrete
The sand coarse aggregate ratio of soil should generally be controlled 40%~50%, and sand coarse aggregate ratio can specifically be adjusted according to actual conditions, can suitably be increased using coarse aggregate
Big sand coarse aggregate ratio then reduces sand coarse aggregate ratio using fine sand.Rule of thumb, for the sand coarse aggregate ratio general control of middle sand 38%~45%, fine sand or spy are thin
The sand coarse aggregate ratio of sand is more suitable with 32%~38%.
Last emphasis is arranged the revolution setting of pump line bottom, it is contemplated that high drop concrete is to pump line bottom bend pipe
Impact force, therefore return bend is set in pump line bottom, protection pump line is played, concrete impact force is reduced, prevents the effect of plugging.
The above, only presently preferred embodiments of the present invention, are not intended to limit the invention, every skill according to the present invention
Art essence should be included in technical solution of the present invention to any trickle amendment, equivalent replacement and improvement made by above example
Protection domain within.
Claims (8)
1. a kind of ultra-deep foundation pit concrete pumps downwards support system, which is characterized in that including multiple standard section of tower crane (1), more
A pump line well word fixed frame (2), channel (3), pump machine (4), pump line (5) and tower crane base (6), tower crane base (6) setting
In the bottom of the foundation pit, multiple standard section of tower crane (1), which are fixed at successively in the tower crane base (6), forms support
Unit (7), the height of the support unit (7) are not less than the depth of the foundation pit, and the support unit (7) passes through the channel
(3) it is connect with the edge of the foundation pit, the pump machine (4) is arranged in the edge of the foundation pit, the pump line (5) and the pump machine
(4) it is connected and passes sequentially through the channel (3) and the support unit 7 is connected with the bottom of the foundation pit, the pump line
(5) it is fixedly installed respectively by multiple pump line well word fixed frames (2) and the support unit (7)；The pump line (5) is in institute
Return bend (10) is formed on the bottom for stating foundation pit；The return bend (10) include the first pump line (101), the second pump line (102),
Third pump line (103), the 4th pump line (104), the 5th pump line (105) and the 6th pump line (106), first pump line (101) are perpendicular
Straight down-set, first pump line (101) extends to form to the right the second pump line (102) of semicircle shape, second pump line
(102) third pump line (103) is extended to form straight up, and horizontal extension forms the 4th pump line to the third pump line (103) to the right
(104), the 4th pump line (104) extends to form the 5th pump line (105) straight down, the 5th pump line (105) water to the right
Flat to extend to form the 6th pump line (106), the low spot of second pump line (102) is higher than the 6th pump line (106).
2. a kind of ultra-deep foundation pit concrete according to claim 1 pumps downwards support system, which is characterized in that further include
Attachment frame (8) and anchor support (9), the attachment frame (8) are nested in the support unit (7) and the channel (3) junction
Lower section, the attachment frame (8) is fixedly connected by the anchor support (9) with the side wall of the foundation pit.
3. a kind of ultra-deep foundation pit concrete according to claim 1 or 2 pumps downwards support system, which is characterized in that more
A pump line well word fixed frame (2) is fixedly connected with the support unit (7) using fastener (21), and junction is using flexible
Material wraps up.
4. a kind of ultra-deep foundation pit concrete according to claim 3 pumps downwards support system, which is characterized in that the pump
Pipe well word fixed frame (2) includes multiple steel pipes (22), and composition groined type shape is arranged in parallel in multiple steel pipes (22) in pairs
And be fixedly connected with the support unit (7), junction is wrapped up using flexible material.
5. a kind of ultra-deep foundation pit concrete according to claim 4 pumps downwards support system, which is characterized in that described
Two pump lines (102) and the 6th pump line (106) lower part are both provided with cushion pad (107).
6. a kind of ultra-deep foundation pit concrete according to claim 1 or 2 pumps downwards support system, which is characterized in that institute
It includes steel pipe skeleton (31), supporting beam (32) and safety net (33) to state channel (3), the both ends of the supporting beam (32) respectively with institute
Support unit (7) to be stated to be fixedly connected with the edge of the foundation pit, the steel pipe skeleton (31) is arranged in the supporting beam (32),
The safety net (33) is fixed at along the length direction of the supporting beam (32) on the steel pipe skeleton (31).
7. a kind of ultra-deep foundation pit concrete according to claim 6 pumps downwards support system, which is characterized in that the branch
The edge fixed connection place of support beam (32) and the foundation pit is provided with anchor (11), and the anchor (11) includes multiple
Spiral (111), multiple spirals (111) are at matrix arrangement.
8. a kind of ultra-deep foundation pit concrete according to claim 7 pumps downwards support system, which is characterized in that Duo Gesuo
State embedded at least 500 millimeters of the concrete cushion of spiral (111).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610554634.0A CN106223339B (en) | 2016-07-14 | 2016-07-14 | Ultra-deep foundation pit concrete downward pumping supporting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610554634.0A CN106223339B (en) | 2016-07-14 | 2016-07-14 | Ultra-deep foundation pit concrete downward pumping supporting system |
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| Publication Number | Publication Date |
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| CN106223339A CN106223339A (en) | 2016-12-14 |
| CN106223339B true CN106223339B (en) | 2018-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610554634.0A Expired - Fee Related CN106223339B (en) | 2016-07-14 | 2016-07-14 | Ultra-deep foundation pit concrete downward pumping supporting system |
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| Country | Link |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108560556A (en) * | 2018-05-22 | 2018-09-21 | 北京六建集团有限责任公司 | A kind of deep foundation ditch concrete pumping system and its construction method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6290414A (en) * | 1985-10-15 | 1987-04-24 | Kokudo Kaihatsu Gijutsu Kenkyu Center | Method and apparatus for concreting work |
| JP2008267051A (en) * | 2007-04-24 | 2008-11-06 | Kajima Corp | Method and facility for placing concrete |
| CN102493457A (en) * | 2011-12-07 | 2012-06-13 | 中国建筑第八工程局有限公司 | Extra-deep downward concrete pumping system |
| CN104863158A (en) * | 2015-05-25 | 2015-08-26 | 中国建筑第八工程局有限公司 | Super-deep and downward concrete conveying system along vertical structure |
| CN104895331A (en) * | 2015-05-26 | 2015-09-09 | 中国建筑第八工程局有限公司 | Concrete downward ultra-deep combined pumping method and device |
-
2016
- 2016-07-14 CN CN201610554634.0A patent/CN106223339B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6290414A (en) * | 1985-10-15 | 1987-04-24 | Kokudo Kaihatsu Gijutsu Kenkyu Center | Method and apparatus for concreting work |
| JP2008267051A (en) * | 2007-04-24 | 2008-11-06 | Kajima Corp | Method and facility for placing concrete |
| CN102493457A (en) * | 2011-12-07 | 2012-06-13 | 中国建筑第八工程局有限公司 | Extra-deep downward concrete pumping system |
| CN104863158A (en) * | 2015-05-25 | 2015-08-26 | 中国建筑第八工程局有限公司 | Super-deep and downward concrete conveying system along vertical structure |
| CN104895331A (en) * | 2015-05-26 | 2015-09-09 | 中国建筑第八工程局有限公司 | Concrete downward ultra-deep combined pumping method and device |
Non-Patent Citations (1)
| Title |
|---|
| 上海世茂深坑酒店混凝土超深一溜到底施工技术;钱海波等;《施工技术》;20151016;第44卷(第19期);第8-11页 * |
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| CN106223339A (en) | 2016-12-14 |
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Granted publication date: 20180817 Termination date: 20190714 |