CN108999428A - A kind of method for dismounting of submerged tunnel steel closure door - Google Patents
A kind of method for dismounting of submerged tunnel steel closure door Download PDFInfo
- Publication number
- CN108999428A CN108999428A CN201810751708.9A CN201810751708A CN108999428A CN 108999428 A CN108999428 A CN 108999428A CN 201810751708 A CN201810751708 A CN 201810751708A CN 108999428 A CN108999428 A CN 108999428A
- Authority
- CN
- China
- Prior art keywords
- dismounting
- lifting lug
- steel
- fashioned iron
- closure door
- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/08—Wrecking of buildings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
- B66C1/14—Slings with hooks
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/08—Wrecking of buildings
- E04G2023/088—Wrecking of buildings of window or door frames
Abstract
A kind of method for dismounting of submerged tunnel steel closure door, method includes the following steps: step 1: remove the first end steel closure door for connecting road on the bank: step 1-1: " Ω " type steel plate for sealing water cuts off, lifts；Step 1-2: panel cuts off, lifts；Step 1-3: " H " fashioned iron is removed；Step 1-4: top bracket is removed；Step 1-5: lower seat is removed；Step 1-6: sleeper beam is removed；Step 2: remove the second end steel closure door of connection submerged tunnel pipeline section: step 2-1: top bracket is removed；Step 2-2: lower seat is removed；Step 2-3: sleeper beam is removed；Step 2-4: " Ω " type steel plate for sealing water cuts off, lifts；Step 2-5: " H " fashioned iron is removed；Step 2-6: panel cuts off, lifts, i.e. the dismounting of completion submerged tunnel steel closure door.The method for dismounting of submerged tunnel steel provided by the invention closure door, can solve solves the problems, such as during immersed tube tunnel underwater construction can not directly using large-scale lifting appliance it is at low cost, be easy in building-site realization.
Description
Technical field
The present invention relates to tearing open for submerged tunnel hardware assembling and disassembling field, especially a kind of submerged tunnel steel closure door
Except method.
Background technique
In order to which across the obstruction of rivers, people build various bridges to meet the needs of transport development, while
Built gulf over strait, straits, great rivers submerged tunnel.Sink tube coupling method (abbreviation immersed tunnelling method), also referred to as prefabricated tube coupling sinking
Method is first prefabricated reinforced concrete tube coupling or all steel tube coupling in dry dock or on barge container, then, transportation by driving to specified waters,
It is lauched sink again to fix to design position, builds up the river-crossing tunnel, tunnel over strait or Large Underwater space of needs.It is this to build tunnel
The technology in road is widely used due to its significant advantage.And as the steel structure peace in immersed tube tunnel and remove be must can not
Scarce component part and extremely important component part.
Steel closure door is important meals structure division in single-unit Concrete tube sections, during tube coupling is lauched sink from it is interim
Water blocking effect.The first pouring molding in dry dock of armored concrete tube coupling, then in its both ends installation steel closure door, then will be in river
Water, which is guided in dry dock, floats concrete tube coupling, finally specifies waters into river with towboat transportation by driving, then is lauched sink to setting
Meter position is fixed.After 2-section pipe section fixes under water, begin to remove the steel closure door in first segment pipeline section, and so on,
Until entire tunnel holing through.
Since immersed tube tunnel is automobile passage, the height for being typically designed pipeline section inner cavity does not exceed 6 meters, therefore steel closure door
Crane cannot use in pipeline section in demolishing process.And between 2-section pipe section at docking two fan steel closure door between away from
From only more than one meter, it is narrow to remove construction space position.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of method for dismounting of submerged tunnel steel closure door, can solve solution
Certainly during immersed tube tunnel underwater construction can not directly using large-scale lifting appliance the problem of, using in pipeline section loading machine,
Bottle gouard moved by hands realizes that steel is sealed up a door the dismounting of each component, solves the problems, such as site operation difficulty；It is at low cost, be easy in building-site
It realizes.
In order to solve the above technical problems, the technical scheme adopted by the invention is that: a kind of dismounting of submerged tunnel steel closure door
Method, method includes the following steps:
Step 1: remove the first end steel closure door for connecting road on the bank:
Step 1-1: " Ω " type steel plate for sealing water cuts off, lifts；
Step 1-2: panel cuts off, lifts；
Step 1-3: " H " fashioned iron is removed；
Step 1-4: top bracket is removed；
Step 1-5: lower seat is removed；
Step 1-6: sleeper beam is removed；
Step 1-7: steel structure vertical lifting to ground；
Step 1-8: each component of dismounting is transported to designated place；
Step 2: remove the second end steel closure door of connection submerged tunnel pipeline section:
Step 2-1: top bracket is removed；
Step 2-2: lower seat is removed；
Step 2-3: sleeper beam is removed；
Step 2-4: " Ω " type steel plate for sealing water cuts off, lifts；
Step 2-5: " H " fashioned iron is removed；
Step 2-6: panel cuts off, lifts；
Step 2-7: steel structure vertical lifting to ground；
Step 2-8: each component of dismounting is transported to designated place,
Complete the dismounting of submerged tunnel steel closure door.
" Ω " type steel plate for sealing water of step 1-1 and step 2-4 cuts off, hoisting process are as follows:
The weld seam up and down on " Ω " type steel plate for sealing water periphery outside panel is blown off using gouge, is stopped " Ω " type by rope
Water steel plate places ground.
The panel of step 1-2 and step 2-6 cuts off, hoisting process are as follows:
A, panel is divided into multiple dismounting blocks according to weld seam；
B, certain distance welds the first lifting lug and the second lifting lug on the corresponding top steel end housing of each dismounting block, each to install
One chain block, installation first panel lifting lug corresponding with the first lifting lug and the second lifting lug and second panel on removing block
Lifting lug installs third panel lifting lug, the suspension hook point of two chain blocks between first panel lifting lug and second panel lifting lug
It is not connect with first panel lifting lug and second panel lifting lug, and adjusts each chain block to light condition；
C, block is removed to the block along weld seam to cut, after the completion of cutting, fasten third panel lifting lug with hawser, outward
It draws, this block is removed by block dismounting using manual cucurbit and is placed in ground；
D, above-mentioned b, c are repeated until all dismounting block dismountings are placed in ground.
" H " fashioned iron removes the principle for following " removing one, transhipment one ".
" H " fashioned iron demolishing process of step 1-3 and step 2-5 are as follows:
A, a lifting lug is respectively welded on " H " fashioned iron top web two sides to be removed, a hand is respectively installed on each lifting lug
Cucurbit is drawn, corresponding lifting lug is respectively installed on " H " fashioned iron to be removed, adjusts two chain blocks to light condition；
B, two I-steel are welded on the bucket body of loading machine and form fork beam type tooling, while in the H profile steel wing to be removed
Plate center upper steel plate is as fulcrum plate；
C, the fork beam type tooling on bucket body is connect with fulcrum plate；
D, " H " fashioned iron to be removed is lifted at leisure with loading machine, tighten chain block, " H " fashioned iron to be removed by
The traction of chain block pulling force, then falls back loading machine, and " H " fashioned iron to be removed is made to deviate top steel corbel support, and release pulls
Cucurbit makes " H " fashioned iron to be removed tiltedly drop down onto ground, then is transported to " H " fashioned iron to be removed with loading machine and fork truck cooperation
Place is formulated in pipe；
E, using loading machine by " H " fashioned iron horizontal transport to be removed to vertical shaft region, truck crane vertical lifting to ground,
Transport vehicle is loaded onto transport to designated place；
F, the b-e that repeats the above steps completes the dismounting of other " H " fashioned iron.
The top bracket demolishing process of step 1-4 and step 2-1 are as follows:
Weld support platform on the bucket body of loading machine, in support platform, the platform frame that is made of more root posts and crossbeam
Frame is provided with plate washer on each face in addition to top surface；
The connection bolt of top bracket is removed, support platform directly holds up top bracket, dropped down onto ground.
The lower seat of step 1-5 and step 2-2 are in such a way that gas cutting is cut off.
The sleeper beam of step 1-6 and step 2-3 are cut using artificial pneumatic pick, and the mode of manual cleaning is removed.
A kind of method for dismounting of submerged tunnel steel closure door provided by the invention, can solve solution and applies under water in immersed tube tunnel
The problem of large-scale lifting appliance can not directly be used during work, the loading machine in pipeline section, bottle gouard moved by hands is utilized to realize that steel is sealed up a door
The dismounting of each component solves the problems, such as site operation difficulty；It is at low cost, be easy to building-site realize.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples:
The schematic diagram of Fig. 1 filled lifting lug and chain block when being cut off for panel of the present invention；
Fig. 2 is the main view of loading machine and tooling used when " H " fashioned iron of the invention is removed；
Fig. 3 is the side view of loading machine and tooling used when " H " fashioned iron of the invention is removed；
The side view of loading machine and support platform used when Fig. 4 is top bracket of the present invention dismounting；
The main view of loading machine and support platform used when Fig. 5 is top bracket of the present invention dismounting.
Specific embodiment
Embodiment one
As Figure 1-Figure 5, a kind of method for dismounting of submerged tunnel steel closure door, method includes the following steps:
Step 1: remove the first end steel closure door for connecting road on the bank:
Step 1-1: " Ω " type steel plate for sealing water cuts off, lifts；
Step 1-2: panel cuts off, lifts；
Step 1-3: " H " fashioned iron is removed；
Step 1-4: top bracket is removed；
Step 1-5: lower seat is removed；
Step 1-6: sleeper beam is removed；
Step 1-7: steel structure vertical lifting to ground；
Step 1-8: each component of dismounting is transported to designated place；
Step 2: remove the second end steel closure door of connection submerged tunnel pipeline section:
Step 2-1: top bracket is removed；
Step 2-2: lower seat is removed；
Step 2-3: sleeper beam is removed；
Step 2-4: " Ω " type steel plate for sealing water cuts off, lifts；
Step 2-5: " H " fashioned iron is removed；
Step 2-6: panel cuts off, lifts；
Step 2-7: steel structure vertical lifting to ground；
Step 2-8: each component of dismounting is transported to designated place,
Complete the dismounting of submerged tunnel steel closure door.
" Ω " type steel plate for sealing water of step 1-1 and step 2-4 cuts off, hoisting process are as follows:
The weld seam up and down on " Ω " type steel plate for sealing water periphery outside panel is blown off using gouge, is stopped " Ω " type by rope
Water steel plate places ground.
The panel of step 1-2 and step 2-6 cuts off, hoisting process are as follows:
A, panel is divided into multiple dismounting blocks 4 according to weld seam；
B, certain distance welds the first lifting lug 1 and the second lifting lug 2 on the corresponding top steel end housing 8 of each dismounting block 4, respectively
One chain block 3 is installed, the installation first panel lifting lug 5 corresponding with the first lifting lug 1 and the second lifting lug 2 on removing block 4
With second panel lifting lug 6, third panel lifting lug 7 is installed between first panel lifting lug 5 and second panel lifting lug 6, two pull
3 suspension hook of cucurbit is connect with first panel lifting lug 5 and second panel lifting lug 6 respectively, and adjusts each chain block 3 to underloading shape
State；
C, block 4 is removed to the block along weld seam to cut, after the completion of cutting, fasten third panel lifting lug 7 with hawser, outward
It draws, this block is removed by the dismounting of block 4 using manual cucurbit 3 and is placed in ground；
D, above-mentioned b, c are repeated until all dismountings of dismounting block 4 are placed in ground.
" H " fashioned iron demolishing process of step 1-3 and step 2-5 are as follows:
A, a lifting lug is respectively welded on " H " fashioned iron top web two sides to be removed, a hand is respectively installed on each lifting lug
Cucurbit is drawn, corresponding lifting lug is respectively installed on " H " fashioned iron to be removed, adjusts two chain blocks to light condition；
B, two I-steel 10 are welded on the bucket body of loading machine 9 and form fork beam type tooling, while in H profile steel to be removed
11 center upper steel plate of wing plate is as fulcrum plate 12；
C, the fork beam type tooling on bucket body 9 is connect with fulcrum plate 12；
D, " H " fashioned iron to be removed is lifted at leisure with loading machine, tighten chain block, " H " fashioned iron to be removed by
The traction of chain block pulling force, then falls back loading machine, and " H " fashioned iron to be removed is made to deviate top steel corbel support, and release pulls
Cucurbit makes " H " fashioned iron to be removed tiltedly drop down onto ground, then is transported to " H " fashioned iron to be removed with loading machine and fork truck cooperation
Place is formulated in pipe；
E, using loading machine by " H " fashioned iron horizontal transport to be removed to vertical shaft region, truck crane vertical lifting to ground,
Transport vehicle is loaded onto transport to designated place；
F, the b-e that repeats the above steps completes the dismounting of other " H " fashioned iron.
The top bracket demolishing process of step 1-4 and step 2-1 are as follows:
Weld support platform on the bucket body 9 of loading machine, in support platform, the platform frame that is made of more root posts and crossbeam
Frame 15 is provided with plate washer 14 in addition to top surface on each face；
The connection bolt of top bracket 13 is removed, support platform directly holds up top bracket 13, dropped down onto ground.
The lower seat of step 1-5 and step 2-2 are in such a way that gas cutting is cut off.
The sleeper beam of step 1-6 and step 2-3 are cut using artificial pneumatic pick, and the mode of manual cleaning is removed.
The above embodiments are only the preferred technical solution of the present invention, and are not construed as limitation of the invention, this Shen
Please in embodiment and embodiment in feature in the absence of conflict, can mutual any combination.Protection model of the invention
The technical solution that should be recorded with claim is enclosed, the equivalent replacement side of technical characteristic in the technical solution recorded including claim
Case is protection scope.Equivalent replacement i.e. within this range is improved, also within protection scope of the present invention.
Claims (6)
1. a kind of method for dismounting of submerged tunnel steel closure door, it is characterised in that method includes the following steps:
Step 1: remove the first end steel closure door for connecting road on the bank:
Step 1-1: " Ω " type steel plate for sealing water cuts off, lifts；
Step 1-2: panel cuts off, lifts；
Step 1-3: " H " fashioned iron is removed；
Step 1-4: top bracket is removed；
Step 1-5: lower seat is removed；
Step 1-6: sleeper beam is removed；
Step 1-7: steel structure vertical lifting to ground；
Step 1-8: each component of dismounting is transported to designated place；
Step 2: remove the second end steel closure door of connection submerged tunnel pipeline section:
Step 2-1: top bracket is removed；
Step 2-2: lower seat is removed；
Step 2-3: sleeper beam is removed；
Step 2-4: " Ω " type steel plate for sealing water cuts off, lifts；
Step 2-5: " H " fashioned iron is removed；
Step 2-6: panel cuts off, lifts；
Step 2-7: steel structure vertical lifting to ground；
Step 2-8: each component of dismounting is transported to designated place,
Complete the dismounting of submerged tunnel steel closure door.
2. a kind of method for dismounting of submerged tunnel steel closure door according to claim 1, it is characterised in that step 1-2 and step
The panel of 2-6 cuts off, hoisting process are as follows:
A, panel is divided into multiple dismounting blocks (4) according to weld seam；
B, certain distance welding the first lifting lug (1) and the second lifting lug on the corresponding top steel end housing (8) of each dismounting block (4)
(2), a chain block (3) is respectively installed, installation is corresponding with the first lifting lug (1) and the second lifting lug (2) on removing block (4)
First panel lifting lug (5) and second panel lifting lug (6) install between first panel lifting lug (5) and second panel lifting lug (6)
Three panel lifting lugs (7), the suspension hook of (3) of two chain blocks connect with first panel lifting lug (5) and second panel lifting lug (6) respectively
It connects, and adjusts each chain block (3) to light condition；
C, block (4) are removed to the block along weld seam to cut, after the completion of cutting, fastens third panel lifting lug (7) with hawser, outward
It draws, this block is removed by block (4) dismounting using manual cucurbit (3) and is placed in ground；
D, above-mentioned b, c are repeated until all dismounting block (4) dismountings are placed in ground.
3. a kind of method for dismounting of submerged tunnel steel closure door according to claim 1, it is characterised in that step 1-3 and step
" H " fashioned iron demolishing process of 2-5 are as follows:
A, a lifting lug is respectively welded on " H " fashioned iron top web two sides to be removed, one is respectively installed on each lifting lug and pulls calabash
Reed respectively installs corresponding lifting lug on " H " fashioned iron to be removed, adjusts two chain blocks to light condition；
B, two I-steel (10) are welded on the bucket body of loading machine (9) and form fork beam type tooling, while in H profile steel to be removed
Wing plate (11) center upper steel plate is as fulcrum plate (12)；
C, the fork beam type tooling on bucket body (9) is connect with fulcrum plate (12)；
D, " H " fashioned iron to be removed is lifted at leisure with loading machine, tightens chain block, " H " fashioned iron to be removed is pulled
The traction of cucurbit pulling force, then falls back loading machine, and " H " fashioned iron to be removed is made to deviate top steel corbel support, unclamps chain block,
So that " H " fashioned iron to be removed is tiltedly dropped down onto ground, then " H " fashioned iron to be removed is transported to system in pipe with loading machine and fork truck cooperation
Determine place；
E, using loading machine by " H " fashioned iron horizontal transport to be removed to vertical shaft region, truck crane vertical lifting to ground is loaded onto
Transport vehicle is transported to designated place；
F, the b-e that repeats the above steps completes the dismounting of other " H " fashioned iron.
4. a kind of method for dismounting of submerged tunnel steel closure door according to claim 1, it is characterised in that step 1-4 and step
The top bracket demolishing process of 2-1 are as follows:
Weld support platform on the bucket body (9) of loading machine, in support platform, the platform framework that is made of more root posts and crossbeam
(15) in addition to top surface, plate washer (14) are provided on each face；
The connection bolt of top bracket (13) is removed, support platform directly holds up top bracket (13), dropped down onto ground.
5. a kind of method for dismounting of submerged tunnel steel closure door according to claim 1, it is characterised in that step 1-5 and step
The lower seat of 2-2 is in such a way that gas cutting is cut off.
6. a kind of method for dismounting of submerged tunnel steel closure door according to claim 1, it is characterised in that step 1-6 and step
The sleeper beam of 2-3 is cut using artificial pneumatic pick, and the mode of manual cleaning is removed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810751708.9A CN108999428A (en) | 2018-07-10 | 2018-07-10 | A kind of method for dismounting of submerged tunnel steel closure door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810751708.9A CN108999428A (en) | 2018-07-10 | 2018-07-10 | A kind of method for dismounting of submerged tunnel steel closure door |
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| Publication Number | Publication Date |
|---|---|
| CN108999428A true CN108999428A (en) | 2018-12-14 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810751708.9A Pending CN108999428A (en) | 2018-07-10 | 2018-07-10 | A kind of method for dismounting of submerged tunnel steel closure door |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110130673A (en) * | 2019-05-20 | 2019-08-16 | 中建钢构有限公司 | Bracket removes device and bracket method for dismounting |
| CN114278114A (en) * | 2022-02-09 | 2022-04-05 | 中建八局深圳科创发展有限公司 | Method for dismantling multi-layer continuous cantilever plate outside high-rise building |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101768926A (en) * | 2009-12-29 | 2010-07-07 | 中铁隧道集团有限公司 | Diamond rope saw static force cutting method |
| JP4739606B2 (en) * | 2001-08-28 | 2011-08-03 | 大成建設株式会社 | Structure of submerged piping |
| CN202848940U (en) * | 2012-08-30 | 2013-04-03 | 北京首钢建设集团有限公司 | Chamber roof truss overall declining removal device of large gas chamber |
| CN204662501U (en) * | 2015-02-16 | 2015-09-23 | 中交四航局第二工程有限公司 | A kind of pass in and out immersed tube vertical occasional passage |
| CN204738309U (en) * | 2015-04-24 | 2015-11-04 | 中国交通建设股份有限公司 | Immersed tube tunnel is with holding structure of sealing up a door |
| CN107604941A (en) * | 2017-01-03 | 2018-01-19 | 深圳大学 | A kind of new and old subway station connectivity part diaphragm wall and side wall restructuring bankrupt |
-
2018
- 2018-07-10 CN CN201810751708.9A patent/CN108999428A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4739606B2 (en) * | 2001-08-28 | 2011-08-03 | 大成建設株式会社 | Structure of submerged piping |
| CN101768926A (en) * | 2009-12-29 | 2010-07-07 | 中铁隧道集团有限公司 | Diamond rope saw static force cutting method |
| CN202848940U (en) * | 2012-08-30 | 2013-04-03 | 北京首钢建设集团有限公司 | Chamber roof truss overall declining removal device of large gas chamber |
| CN204662501U (en) * | 2015-02-16 | 2015-09-23 | 中交四航局第二工程有限公司 | A kind of pass in and out immersed tube vertical occasional passage |
| CN204738309U (en) * | 2015-04-24 | 2015-11-04 | 中国交通建设股份有限公司 | Immersed tube tunnel is with holding structure of sealing up a door |
| CN107604941A (en) * | 2017-01-03 | 2018-01-19 | 深圳大学 | A kind of new and old subway station connectivity part diaphragm wall and side wall restructuring bankrupt |
Non-Patent Citations (2)
| Title |
|---|
| 唐永波、周建民: "港珠大桥岛隧工程沉管端封门拆除工艺研究", 《中国交通建设股份有限公司2014年现场技术交流会》 * |
| 孟民强: "沉管法隧道管内施工浅谈", 《广东造船》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110130673A (en) * | 2019-05-20 | 2019-08-16 | 中建钢构有限公司 | Bracket removes device and bracket method for dismounting |
| CN114278114A (en) * | 2022-02-09 | 2022-04-05 | 中建八局深圳科创发展有限公司 | Method for dismantling multi-layer continuous cantilever plate outside high-rise building |
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Application publication date: 20181214 |
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