CN105756695A - Large-diameter anchor cable for mine - Google Patents

Large-diameter anchor cable for mine Download PDF

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Publication number
CN105756695A
CN105756695A CN201610058022.2A CN201610058022A CN105756695A CN 105756695 A CN105756695 A CN 105756695A CN 201610058022 A CN201610058022 A CN 201610058022A CN 105756695 A CN105756695 A CN 105756695A
Authority
CN
China
Prior art keywords
parrel
cable body
cable
head
steel wire
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
Application number
CN201610058022.2A
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Chinese (zh)
Inventor
蒋敬平
陆锋
宋潇虹
李建建
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Anke Mine Support Technology Co Ltd
Original Assignee
Shandong Anke Mine Support Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shandong Anke Mine Support Technology Co Ltd filed Critical Shandong Anke Mine Support Technology Co Ltd
Priority to CN201610058022.2A priority Critical patent/CN105756695A/en
Publication of CN105756695A publication Critical patent/CN105756695A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/0006Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by the bolt material
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/0026Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

A large-diameter anchor cable for a mine is composed of a cable body, an anchor, a support plate and a stirring connector.The cable body is composed of a cable body steel wire, a head rigid core tube, a flexible core tube, a tail rigid core tube, a choke cable band, a cable band, a head cable band, a guide cable end and the like.The external diameter of the cable body is phi 30-50 mm; the head rigid core tube, the flexible core tube and the tail rigid core tube are located in the center of the cable body and connected in sequence; the core tubes can be replaced by a head rigid core rod, a flexible core rod and a tail rigid core rod correspondingly.The external circumference of the cable body resin anchorage section adopts a cable band type or expanding ring type or steel wire wrapping type expanding structure to expand the diameter of the cable body resin anchorage section and reduce a diameter difference between the cable body and a drill hole, and the stirring effect and the anchoring force of resin are improved.The resin anchorage problem of the large-diameter anchor cable is solved for applying the anchor cable to a non-coal mine.Large-diameter anchor cables with different diameters can be processed by means of existing high-strength steel wires according to site requirements.

Description

Major diameter Mine anchorage cable
Technical field
The present invention relates to the Geotechnical Engineering supporting such as underground engineering, tunnel or reinforcing anchor cable, particularly the major diameter Mine anchorage cable of a kind of applicable non-coal mine.
Background technology
The anchor cable used in mine and Geotechnical Engineering at present is broadly divided into two classes, and a class is resin cable-bolts, another kind of for grouting cable anchor.Owing to resin cable-bolts has, speed of application is fast, prestressing force is high, processing is simple, low cost and other advantages, uses in a large number in mine working supporting.Resin cable-bolts is first to be anchored by anchor cable with resin, then loads onto pallet at anchor cable afterbody, rigging carries out stretch-draw pretension.Ensure that the difference of anchoring quality, cable body diameter and bore diameter requires within the scope of 6~10mm.But in some non-coal mines or other underground engineerings, owing to country rock is hard, adopting the construction of jewel hole chassis, bore diameter is big, is typically in 50~75mm scope.The maximum gauge of the current domestic production steel strand wires for processing anchor cable is 29mm, incompatible with large diameter borehole.If the anchor cable of the existing specification of adapted, then needing to adopt hand drill perforating, speed of application is slow, and labor intensity is high, and noise pollution is big, and operation easier is high, and people's construction safety hidden danger under the top board of non-supporting is big.
Summary of the invention
In order to overcome the Mine anchorage cable of prior art to be unsuitable for the deficiency in the anchoring of non-coal mine hard surrounding rock large diameter borehole, the present invention provides a kind of major diameter Mine anchorage cable, it can be suitable for non-coal mine or other underground engineerings are hard at country rock, adopt jewel hole chassis construction large diameter borehole when, carry out the needs of country rock anchoring support.
The present invention solves that above-mentioned technical problem be the technical scheme is that
Major diameter Mine anchorage cable is made up of cable body, ground tackle, supporting plate and stirring joint etc..Cable body is made up of cable body steel wire etc..The front portion of cable body is the afterbody that resin anchoring section, ground tackle and supporting plate are installed on cable body, and stirring joint is fixed on the tail end of cable body.The center of the resin anchoring section that cable body is anterior is built-in with head rigid core pipe or head rigidity core bar;Center in the middle part of cable body is built-in with flexible core pipe or flexible core bar;The center of cable body afterbody is built-in with afterbody rigid core pipe or afterbody rigidity core bar.Head rigid core pipe or head rigidity core bar, flexible core pipe or flexible core bar, afterbody rigid core pipe or afterbody rigidity core bar, be sequentially connected with to afterbody from cable body head.The external diameter of cable body is Ф 30mm~Ф 50mm.Cable body resin anchoring section excircle is provided with one of them of following three kinds of expanding structures, and three kinds of expanding structures are: parrel formula, the ring type that rises, outer around wire type.
The invention has the beneficial effects as follows:
1. according to the requirement of on-the-spot bore diameter, anchor force, the major diameter mine resin anchor cable of existing high tensile steel wire processing different-diameter can be utilized, solves the resin anchoring problem of non-coal mine major diameter Mine anchorage cable.
2. anchor cable adopts hollow structure, and two ends adopt rigid core pipe or rigidity core bar, it is ensured that cable body afterbody rigging fastening cable body does not shrink, and upper end resin anchoring is reliable;Middle adopt flexible core pipe that cable body can be made bend, at narrow space construction long anchor cable, and lightweight, cost is low, easy construction.
3. cable body top adopts parrel formula, the ring type that rises or outer around the expanding structure of wire type, expands the diameter of cable body, minimizing cable body and the diameter difference of boring, improves resin agitating effect and anchor force.
Accompanying drawing explanation
Fig. 1: the overall structure schematic diagram of the major diameter Mine anchorage cable of parrel formula of the present invention.
Fig. 2: the present invention rises the overall structure schematic diagram of major diameter Mine anchorage cable of ring type.
Fig. 3: the contour structures schematic diagram of parrel formula major diameter Mine anchorage cable cable body part.
Fig. 4: the contour structures schematic diagram of the ring type that rises major diameter Mine anchorage cable cable body part.
Fig. 5: the contour structures schematic diagram of steel wire externally-wound type major diameter Mine anchorage cable cable body part.
A-A section zoomed-in view in Fig. 6 (a): Fig. 3.
Fig. 6 (b), Fig. 6 (c): the master of parrel depending on, overlook zoomed-in view.
In figure: 1-stirring joint, 2-ground tackle, 3-afterbody rigid core pipe, 4-flexible core pipe, 5-choked flow parrel, 6-parrel, 7-head parrel, 8-guide line head, 9-head rigid core pipe, 10-resin anchoring agent, 11-cable body, 12-supporting plate, 13-cable body steel wire, 14-rise by ring, 15-outward around steel wire.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
Embodiment 1:
Figure 1 illustrates a kind of structure of the present invention, namely the resin anchoring section of cable body is the major diameter Mine anchorage cable of the expanding structure of parrel formula.It is made up of cable body 11, ground tackle 2, supporting plate 12, stirring joint 1.Cable body 11 is by cable body steel wire 13, head rigid core pipe 9, flexible core pipe 4, afterbody rigid core pipe 3, choked flow parrel 5, parrel 6, head parrel 7, and guide line head 8 is constituted.
The front portion of anchor cable 11 is the resin anchoring section realizing end anchor with resin anchoring agent 10.Ground tackle 2 and supporting plate 12 are installed on the cable body 11 of anchor cable afterbody.Stirring joint 1 is fixed on the tail end of cable body that is the rear end of afterbody rigid core pipe, connects firmly with cable body steel wire 13.In figure, the top of anchor cable, the i.e. front portion of anchor cable or head;The bottom of anchor cable, the i.e. rear portion of anchor cable or afterbody.
The center of the anterior resin anchoring section of cable body 11 is built-in with head rigid core pipe 9;Center in the middle part of cable body is built-in with flexible core pipe 4;The center of cable body afterbody is built-in with afterbody rigid core pipe 3.Head rigid core pipe 9, flexible core pipe 4, afterbody rigid core pipe 3, be sequentially connected with to afterbody from cable body head.
The resin anchoring section excircle of cable body 11 is provided with the expanding structure of parrel formula.So-called expanding structure, namely for expanding cable body diameter, reduce the degree of compaction of the diameter difference of cable body and boring, the mixing effect improving cable body resin anchoring section and resin anchoring, stoping resin anchoring agent outwardly.
The expanding structure of parrel formula is by the choked flow parrel 5 of the excircle being arranged on the head parrel 7 of cable body resin anchoring section excircle, rear end, and two parrels 6 being arranged between head parrel 7 and choked flow parrel 5 are constituted.The parrel sum of this example totally four, constitutes four parrel structures.The number of parrel 6 can increase and decrease according to actual needs, selects between two~six.
The expanding structure of parrel formula shown in Fig. 3 is by five parrels being located in cable body resin anchoring section: head parrel 7, choked flow parrel 5, and three parrels 6 therebetween are constituted.This example is the expanding structure of five parrels.
Head parrel 7, parrel 6, choked flow parrel 5 excircle front and back end outer rim have chamfering;Head parrel 7, parrel 6 outer circumference surface on have longitudinal rib.Chamfering is more smooth and easy when making anchor cable install, and longitudinal rib can improve the mixing effect of cable body resin anchoring section.Head parrel 7 plays the effect of locking steel wire simultaneously.The effect of choked flow parrel 5 mainly prevents resin anchoring agent 10 from flowing out.
Fig. 6 (b), Fig. 6 (c) illustrate the structure of parrel 6.The excircle front and back end outer rim of parrel 6 has chamfering, and outer circumference surface has longitudinal rib.Head parrel 7 is same, and choked flow parrel 5 has chamfering, without longitudinal rib.
The termination, resin anchoring section front end of cable body 11, that is the termination, front end of head rigid core pipe 9, install guide line head 8.Guide line head 8 is conducive to the smooth installation in boring of the anchor cable anchor cable.
Stirring joint 1 is contained in afterbody rigid core pipe end that is the end at anchor cable rear portion.The transverse section of stirring joint 1 is hexagon, as shown in Fig. 6 (a).The transverse section of stirring joint is alternatively square or other shapes.Stirring joint 1 is used for connecting rotary stirring equipment, drives anchor cable to complete resin agitating.The stirring shape of joint, size and rotary stirring equipment are supporting.
The external diameter of cable body 11 is generally adopted and ranges for Ф 30mm~Ф 50mm.Cable body steel wire 13 is to adopt high tensile steel wire to be twisted.Increased the diameter of anchor cable by the core pipe inserted at cable body center, reach the requirement of major diameter Mine anchorage cable.By changing the diameter of built-in core pipe, adjust the external diameter of anchor cable, with the requirement at satisfied scene.
Cable body steel wire 13 may select high-strength helix rib steel wire or bright steel wire, and gauge of wire is between Ф 4mm~Ф 9mm, and steel wire number of share of stock is between 8~30.
Head rigid core pipe 9 must have enough rigidity and intensity, to ensure that anchor cable does not occur to destroy and contraction distortion at loading process core pipe;Can be selected for thick walled steel tube, alloy material pipe fitting, high intensity organic or inorganic non-metal pipe.
Afterbody rigid core pipe 3 must have enough rigidity and intensity equally, and adapts to anchor cable stirring torsion and the ground tackle non-shrinking requirement of anchoring;Can be selected for the material same with head rigid core pipe, it is possible to select different materials according to the actual requirements.
Adopt flexible core pipe in the middle part of anchor cable, make anchor cable maintain flexible on the one hand, reduce the overall weight of anchor cable on the other hand.Flexible core pipe can adopt plastics, rubber, fiber or other macromolecule polymeric materials, it is possible to adopts the chain segmentation flexible pipe that rigid metal or nonmetallic materials make.
Guide line head 8 is larger in size because of boring aperture and resin anchoring agent, positions in the borehole for convenience of anchor cable, it is achieved being sufficiently stirred for of Anchor Agent and set.Guide line head 8 is arranged on termination, anchor cable front portion with rigid core pipe after coupling.Guide line head 8 can adopt with the connection of rigid core pipe and weld, rivets or threaded etc..
Embodiment 2:
Figure 2 illustrates the another kind of version of the present invention, namely cable body resin anchoring section is the major diameter Mine anchorage cable of the expanding structure of ring type of rising.It is made up of cable body 11, ground tackle 2, supporting plate 12, stirring joint 1.Cable body 11 is by cable body steel wire 13, head rigid core pipe 9, flexible core pipe 4, afterbody rigid core pipe 3, choked flow parrel 5, parrel 6, head parrel 7, guide line head 8, and the ring 14 that rises is constituted.
The expanding structure that this example cable body resin anchoring section adopts is the ring type that rises, that is add, between cable body high tensile steel wire 13 and the head rigid core pipe 9 between choked flow parrel 5 and the head parrel 7 in cable body resin anchoring section, in resin anchoring section, the ring 14 that rises, making cable body is cage type added with the position of the ring 14 that rises.Therefore the expanding structure of the ring type that rises is also known as cage structure.
Fig. 4 illustrates the expanding structure of the ring type that rises of this example.It is between the choked flow parrel 5 and head parrel 7 of cable body resin anchoring section, between cable body steel wire 13 and head rigid core pipe 9, adds two rings 14 that rise, forms two cage structures.Added by rise optional one~tri-according to the actual requirements, ring 14, form one~tri-cage structures.All the other are identical with embodiment 1.
Embodiment 3:
Figure 5 illustrates the third version of the present invention, namely cable body resin anchoring section is the major diameter Mine anchorage cable of the expanding structure of steel wire externally-wound type.It is made up of cable body 11, ground tackle 2, supporting plate 12, stirring joint 1.Cable body 11 is by cable body steel wire 13, head rigid core pipe 9, flexible core pipe 4, afterbody rigid core pipe 3, choked flow parrel 5, parrel 6, head parrel 7, guide line head 8, and constitutes around steel wire 15 outward.
The expanding structure of steel wire externally-wound type, namely the choked flow parrel 5 in cable body resin anchoring section arranges a parrel 6 with the centre of head parrel 7, between choked flow parrel 5 and parrel 6 and between parrel 6 and head parrel 7, it is wrapped on cable body 11 around steel wire 15 with outer thick compared with cable body high tensile steel wire 13 of diameter respectively.Outer consistent with anchor cable steel wire 13 rotation direction around the rotation direction of steel wire 15, pass through to weld to connect firmly around the two ends of steel wire 15 and the head parrel 7 at its two ends, parrel 6 or parrel 6, choked flow parrel 5 outward.Be wound around between each two parrel outer around steel wire 15 be four~six circles, it is possible to increase and decrease according to actual needs, but no less than four circles.This exception is Ф 6mm~Ф 8mm around the diameter of steel wire 15.All the other are identical with embodiment 1.
Embodiment 4,5,6:
By the afterbody rigid core pipe 3 of the major diameter Mine anchorage cable of embodiment 1,2,3, flexible core pipe 4, head rigid core pipe 9, correspondence changes afterbody rigidity core bar, flexible core bar, head rigidity core bar into respectively.All the other are corresponding identical with embodiment 1,2,3 respectively.
In addition, cable body is built-in core pipe and core bar also can mix and match;As: cable body front central has head rigidity core bar, and cable body afterbody has afterbody rigidity core bar, and in the middle part of cable body, there is flexible core pipe at center.
Applicating example:
On certain ore deposit top board, a weak intercalated layer, the resin cable-bolts of 5m length of need to constructing are contained in 3m place.This ore deposit adopts the construction of ×× jewel hole chassis, the drill bit of construction, anchor cable hole diameter Ф 56mm, according to the principle of " three footpaths mate ", the major diameter Mine anchorage cable of processing cable body diameter Ф 33mm.
The resin anchoring section of anchor cable adopts the expanding structure of parrel formula.Various parrels five are set altogether in 1 meter of long scope of resin anchoring section.Each parrel width 30mm.The diameter of the choked flow parrel from 1m place, termination is slightly larger, and for 51mm, all the other parrel diameters are 50mm, and the spacing of parrel is 220mm.The head of anchor cable and afterbody rigid core pipe select diameter Ф 25mm high tensile steel tube, wall thickness 5mm;The flexible core pipe at middle part selects reinforced plastic pipe, wall thickness 3mm.Cable body is wound around twisting on core pipe by the high-strength helix rib steel wire of 21 gangs of diameter Ф 4mm and forms.Steel wire rotation direction is right-laid.Guide line head is directly welded at head rigid core pipe front end.

Claims (6)

1. a major diameter Mine anchorage cable, including cable body (11), ground tackle (2), supporting plate (12) and stirring joint (1);Cable body (11) includes cable body steel wire (13);The front portion of cable body (11) is resin anchoring section, and ground tackle (2) and supporting plate (12) are arranged on the afterbody of cable body, and stirring joint (1) connects firmly the tail end at cable body;It is characterized in that: there are head rigid core pipe (9) or head rigidity core bar in the center of the anterior resin anchoring section of described cable body (11);The center at cable body (11) middle part is built-in with flexible core pipe (4) or flexible core bar;There are afterbody rigid core pipe (3) or afterbody rigidity core bar in the center of cable body (11) afterbody;Head rigid core pipe (9) or head rigidity core bar, flexible core pipe (4) or flexible core bar, afterbody rigid core pipe (3) or afterbody rigidity core bar, be sequentially connected with to afterbody from cable body head;The external diameter of cable body (11) is Ф 30mm~Ф 50mm;The excircle of cable body (11) resin anchoring section be provided with following three kinds of expanding structures one of them, three kinds of expanding structures are: parrel formula, the ring type that rises, outer around wire type.
2. major diameter Mine anchorage cable according to claim 1, it is characterized in that: the described expanding structure of parrel formula is by the choked flow parrel (5) of the head parrel (7) being arranged on cable body resin anchoring section fore end outer circumference, the excircle being arranged on cable body resin anchoring section rear end, and two~six parrels (6) being arranged between head parrel (7) and choked flow parrel (5) are constituted.
3. major diameter Mine anchorage cable according to claim 1, it is characterized in that: the described expanding structure of the ring type that rises is by the choked flow parrel (5) of the head parrel (7) being arranged on cable body resin anchoring section fore end outer circumference, the excircle being arranged on cable body resin anchoring section rear end, and be arranged between head parrel (7) and choked flow parrel (5), the ring that rises (14) between cable body steel wire (13) and head rigid core pipe (9) is constituted;Cable body is cage type added with the position of the ring that rises (14);Added by the ring (14) that rises be one~tri-, the cage type of formation is one~tri-.
4. major diameter Mine anchorage cable according to claim 1, it is characterized in that: the described expanding structure of steel wire externally-wound type is by the head parrel (7) being arranged on cable body resin anchoring section fore end outer circumference, is arranged on the choked flow parrel (5) of cable body resin anchoring section back end outer circumference, is arranged on the parrel (6) in the middle of head parrel (7) and choked flow parrel (5), and outer constitute around steel wire (15);Being wrapped on the cable body (11) between head parrel (7) and parrel (6) and between parrel (6) and choked flow parrel (5) around steel wire (15) outward, its rotation direction is consistent with the steel wire of anchor cable (13) rotation direction;Outer connect firmly mutually around the two ends of steel wire (15) and the head parrel (7) at its two ends, parrel (6) or parrel (6), choked flow parrel (5);Between parrel be wound around outer around steel wire (15) be four~six circles.
5. major diameter Mine anchorage cable according to claim 1, it is characterised in that: the front end of described cable body (11) and the front end of head rigid core pipe (9) are equipped with a guide line head (8).
6. the major diameter Mine anchorage cable according to Claims 2 or 3 or 4, it is characterised in that: described head parrel (7), parrel (6), choked flow parrel (5) excircle front and back end outer rim have chamfering;Head parrel (7), parrel (6) outer circumference surface on have longitudinal rib.
CN201610058022.2A 2016-01-28 2016-01-28 Large-diameter anchor cable for mine Pending CN105756695A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107120129A (en) * 2017-05-25 2017-09-01 中国矿业大学 A kind of band tartar strengthens anchoring anchor cable and its application method
CN109026099A (en) * 2018-07-05 2018-12-18 安徽理工大学 A kind of soft-rock tunnel full length fastening supporting construction and its construction method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2190676C (en) * 1996-02-15 2001-04-17 Jennmar Corporation Cable bolt driver
CN2723682Y (en) * 2004-08-03 2005-09-07 神华集团有限责任公司 Anchor rope support device
CN2863896Y (en) * 2006-08-01 2007-01-31 范晶彦 Anchor cable body and apparatus for twisting the same
CN201507317U (en) * 2009-09-15 2010-06-16 济南澳科矿山工程技术有限公司 Anchoring-grouting anchor rope
CN103243714A (en) * 2013-05-28 2013-08-14 唐山德泰机械制造有限公司 High-strength pre-stressed anchor rod
CN205532661U (en) * 2016-01-28 2016-08-31 山东安科矿山支护技术有限公司 Mining anchor rope of major diameter

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2190676C (en) * 1996-02-15 2001-04-17 Jennmar Corporation Cable bolt driver
CN2723682Y (en) * 2004-08-03 2005-09-07 神华集团有限责任公司 Anchor rope support device
CN2863896Y (en) * 2006-08-01 2007-01-31 范晶彦 Anchor cable body and apparatus for twisting the same
CN201507317U (en) * 2009-09-15 2010-06-16 济南澳科矿山工程技术有限公司 Anchoring-grouting anchor rope
CN103243714A (en) * 2013-05-28 2013-08-14 唐山德泰机械制造有限公司 High-strength pre-stressed anchor rod
CN205532661U (en) * 2016-01-28 2016-08-31 山东安科矿山支护技术有限公司 Mining anchor rope of major diameter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107120129A (en) * 2017-05-25 2017-09-01 中国矿业大学 A kind of band tartar strengthens anchoring anchor cable and its application method
CN109026099A (en) * 2018-07-05 2018-12-18 安徽理工大学 A kind of soft-rock tunnel full length fastening supporting construction and its construction method
CN109026099B (en) * 2018-07-05 2023-09-12 安徽理工大学 Soft rock roadway full-length anchoring supporting structure and construction method thereof

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Application publication date: 20160713