CN110797827A - Precast concrete module for cable duct bank - Google Patents
Precast concrete module for cable duct bank Download PDFInfo
- Publication number
- CN110797827A CN110797827A CN201911109418.5A CN201911109418A CN110797827A CN 110797827 A CN110797827 A CN 110797827A CN 201911109418 A CN201911109418 A CN 201911109418A CN 110797827 A CN110797827 A CN 110797827A
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- Prior art keywords
- cable duct
- precast concrete
- duct bank
- cable
- concrete module
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- 239000011178 precast concrete Substances 0.000 title claims abstract description 68
- 229910000831 Steel Inorganic materials 0.000 claims description 30
- 239000010959 steel Substances 0.000 claims description 30
- 238000007789 sealing Methods 0.000 claims description 7
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 25
- 238000013461 design Methods 0.000 abstract description 16
- 239000004567 concrete Substances 0.000 abstract description 13
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000003487 anti-permeability effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009933 burial Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/06—Installations of electric cables or lines in or on the ground or water in underground tubes or conduits; Tubes or conduits therefor
Landscapes
- Laying Of Electric Cables Or Lines Outside (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention discloses a cable duct bank precast concrete module which is integrally fan-shaped, wherein a plurality of cable pipelines are arranged in the cable duct bank precast concrete module, and the curvature of the cable pipelines in the cable duct bank precast concrete module is consistent with that of the fan-shaped cable pipelines. The prefabricated concrete modules of one or more cable duct banks can be spliced and combined in a user-defined mode according to actual engineering requirements, so that the steering at different angles of the cable duct bank structure, the obstacle avoidance and branching functions in different forms can be realized. The invention can realize the steering of the cable duct bank structure, flexibly avoid the obstacles in front of the line and realize the shunting of the cable line without a working well, thereby greatly improving the simplicity and the flexibility of the design and the construction of the cable duct bank line; meanwhile, a complete solution is perfected for a prefabricated cable duct laying system.
Description
Technical Field
The invention relates to the field of electric power construction, in particular to a cable duct bank precast concrete module.
Background
With the development demand of urbanization construction, power cables are gradually changed from aerial erection to underground laying. Power line underground runs typically use insulated power cables. The laying mode comprises a direct burial mode, a cable duct bank mode, a cable trench mode, an underground comprehensive (or special cable) pipe gallery and the like, wherein the underground comprehensive (or special cable) pipe gallery is large in investment and low in utilization rate; the direct-buried cable is easily affected by external force damage and heat sources, and simultaneously, the direct-buried cable is also prevented from being corroded by acid and alkali solution, so that the direct-buried cable is not beneficial to the safe operation of a power line. Therefore, the cable duct bank has the advantages of low manufacturing cost, small occupied area, perfect cable protection measures and the like, and is widely applied to cable line construction.
In the process of designing the laying line of the cable duct bank, if the requirements of turning and branching on the line planning design are met and obstacles along various designs are avoided to block, the cable duct bank usually needs to re-plan the designed laying line, and the cable is led to a change line or a working well is assisted to realize the turning, branching and obstacle avoidance of the cable laying in advance. Therefore, the traditional design method is too rigid and redundant, lacks flexibility and applicability, and loses the advantages of simplicity, rapidness, flexibility and the like of a cable duct laying mode.
The application numbers of 201810959567.X 'a cable duct and construction method thereof' and 201811001829.8 'a prefabricated cable duct and construction method thereof' respectively disclose two prefabricated cable ducts, but both are only suitable for the linear laying of the cable duct, and the steering, obstacle avoidance and branching functions of the prefabricated cable duct cannot be realized. In addition, the cable duct bank connection mode of above-mentioned two kinds of prefabricated formulas is generally all too complicated, needs supporting interface mosaic structure just can accomplish the concatenation, has reduced the high-efficient convenience of assembled construction to a certain extent.
For the construction of long-distance and long-period cable laying, undetected stratums or undetected obstacles are inevitable in the process of exploration and design along the line in the previous period, and no solution with strong applicability and high flexibility exists at present when the construction process reports a land acquisition problem and conflicts with other built or built engineering structures or meets sudden obstacles.
In addition, in the traditional cable duct bank and working well construction, foundation trenches are excavated on site, cable pipelines are laid, and concrete is poured for curing and forming. The traditional mode has the defects of large construction operation surface, long construction period, serious field pollution and the like, particularly in the process of laying the municipal cable pipes, urban road plugging can be caused, the in-situ concrete pollutes the environment, the daily life of people is seriously influenced, and the traditional mode does not meet the requirement of modern city development.
Disclosure of Invention
The invention aims to provide a precast concrete module for a cable duct bank, which improves the flexibility and the applicability of the steering, obstacle avoidance and branching design and construction of the cable duct bank aiming at the defects of the prior art.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides a cable duct bank precast concrete module, cable duct bank precast concrete module wholly is fan-shaped, and its inside is equipped with a plurality of cable duct, and its inside cable duct's camber is unanimous with fan-shaped camber. Preferably, the maximum bending rate of the cable and the preparation and construction applicability of the prefabricated modules are comprehensively considered, and one or more same cable duct bank prefabricated concrete modules can be spliced and combined in a user-defined mode according to actual use requirements by utilizing one or more same cable duct bank prefabricated concrete modules when the sector central angle is 15 degrees or 30 degrees, so that different combined structures are formed to achieve the cable duct bank structure steering, obstacle avoidance and branching functions.
Furthermore, the front end and the rear end of the cable duct bank precast concrete module are respectively provided with a socket and a socket for longitudinal butt joint positioning between the modules. In order to enhance the waterproof performance, the socket is provided with a waterproof sealing rubber ring, the waterproof effect and the cost are integrated, and the number of the waterproof sealing rubber rings is preferably 2. In order to avoid damaging the cable duct bank precast concrete module when splicing the long duct bank, the bellmouth is provided with an anti-collision rubber pad.
Furthermore, two T-shaped section steels are arranged at the longitudinal front end and the longitudinal rear end of the cable duct bank precast concrete module, the two T-shaped section steels at the same end are connected together through opposite-pulling steel bars, and bolt holes are formed in the outward-extending wings of the T-shaped section steels. The T-shaped steel and the split steel bars are connected with each other to form a whole, so that the integral rigidity of the T-shaped steel is guaranteed, and the binding force between the T-shaped steel and the module concrete is improved. The cable duct bank precast concrete modules are connected through bolts with bolt holes arranged on the outward-extending wings of the T-shaped steel, so that the longitudinal connection performance between the cable duct bank precast concrete modules can be ensured.
Furthermore, the upper surface and the lower surface of the precast concrete module of the cable duct bank are respectively provided with a matched concave-convex groove structure for vertical butt joint positioning between the modules, so that the vertical direction superposition arrangement of the duct bank can be realized, and different loop number requirements of different lines can be flexibly adapted.
Compared with the prior art, the invention has the following remarkable effects:
(1) according to the invention, when meeting the requirements of route planning steering and branching and avoiding obstacles along various design lines in design, the method does not need to plan the design and lay the route again, and is realized without assisting a working well, so that the universality and the applicability of the design are improved, the design flow is simplified, and meanwhile, a complete set of solution is perfected for a prefabricated cable duct laying system.
(2) The invention greatly improves the flexibility of the site construction of the cable duct bank, and purposefully solves the problems of undetected stratums or undetected obstacles in the early stage, construction and land acquisition reporting problems in the construction process, and construction progress stagnation caused by conflicts with other built or built engineering structures or unexpected obstacles in the construction process.
(3) The cable duct bank precast concrete module can be produced in a modularized mode, assembled in a modularized mode, can be quickly installed longitudinally and interlaminar according to the actual engineering requirements, and meets the arrangement form of various existing duct bank designs.
(4) In the invention, because the interfaces of the precast concrete modules of the cable duct bank are unified, the design process is greatly simplified, the design and construction are guided by a modularized thought, and the splicing can be carried out by selecting the corresponding precast concrete modules of the cable duct bank according to the engineering requirements.
(5) The splicing mode of the longitudinal T-shaped steel effectively improves the mechanical property of the longitudinal joint and ensures the rigidity of the splicing joint between the calandria blocks in the longitudinal direction.
(6) The T-shaped steel and the counter-pulling steel bars are connected with each other to form a whole, so that the integral rigidity of the T-shaped steel is guaranteed, the adhesive force between the T-shaped steel and the module concrete is improved, and the longitudinal connection performance between the cable duct prefabricated concrete modules is improved.
(7) In the invention, the socket end is provided with two circles of sealing waterproof rubber strips, so that the anti-seepage performance of the longitudinal joint is ensured.
(8) According to the invention, the anti-collision rubber pad is arranged on the outermost side of the spigot end, so that the damage to the pipe arrangement structure caused by collision at the joint during socket lap joint construction is effectively prevented.
(9) The prefabricated modules are designed in a single loop, the size of each prefabricated module is small, the weight is light, the overall structure is regular, other matched interface splicing structures are not needed, and the factory loading, transportation, field stacking and construction are facilitated.
(10) The cable duct bank precast concrete module disclosed by the invention is completely in dry connection, is free of wet operation on site, is environment-friendly and pollution-free, is free of template dismounting operation, is free of concrete maintenance, is fast and efficient, and greatly saves the construction period.
Drawings
The invention is described in further detail below with reference to the figures and the detailed description.
FIG. 1 is a front three-dimensional view of a precast concrete module for cable ducts in an example of the invention;
FIG. 2 is a three-dimensional view of the back of a precast concrete module for cable ducts in an example of the invention;
FIG. 3 is an internal three-dimensional view of a cable duct precast concrete module in an example of the present invention;
FIG. 4 is a vertically spliced three-dimensional view of precast concrete modules for a cable duct bank in an example of the invention;
FIG. 5 is a longitudinal spliced three-dimensional view of precast concrete modules for cable ducts in an example of the present invention;
FIG. 6 is a schematic illustration of the splicing of T-section steel of precast concrete modules for cable ducts in an example of the invention;
FIG. 7 is a schematic view of the curvature design of precast concrete modules for cable ducts in an example of the invention;
fig. 8 is a three-dimensional view of a cable duct bank structure turned 60 ° using an example of the invention;
fig. 9 is a three-dimensional view of a cable duct bank structure turned 90 ° using an example of the invention;
FIG. 10 is a schematic view of a usage scenario 1 for avoiding obstacles in a cable duct structure by using an embodiment of the present invention;
FIG. 11 is a schematic view of a usage scenario 2 for avoiding obstacles in a cable duct structure by using an embodiment of the present invention;
fig. 12 is a schematic view of a usage scenario 3 for avoiding obstacles in a cable duct structure by using an embodiment of the invention;
FIG. 13 is a schematic view of a use scenario 1 for branching a cable duct work structure using an example of the present invention;
FIG. 14 is a schematic view of a use scenario 2 for branching a cable duct work utilizing an example of the present invention;
FIG. 15 is a schematic view of a use scenario 3 for branching a cable duct work structure using an example of the present invention;
in the figure: 1, prefabricating a concrete module for a cable duct bank; 2-cable conduit; 3, inserting a socket; 4, a bell mouth; 5, upper concave-convex grooves; 6-concave convex groove; 7-sealing waterproof rubber ring; 8, an anti-collision rubber pad; 9-T-shaped section steel; 91-bolt hole; 92-counter-pulling the reinforcing steel bars; 93-bolt; 94-screw cap; 10-barrier region.
Detailed Description
As shown in fig. 1 to 3, the cable duct bank precast concrete module 1 of the present invention is a cable duct bank precast concrete module 1, the whole cable duct bank precast concrete module 1 is a fan-shaped precast structure, a cable is arranged inside the cable duct bank precast concrete module to pass through a cable duct 2 having a curvature identical to that of the fan-shaped cable duct bank, a specific numerical value can be determined according to an actual line cable condition, and other types of ducts such as communication can be laid.
As shown in fig. 1 to 5, a socket 3 is arranged at the longitudinal front end of a cable duct bank precast concrete module 1, and two waterproof sealing rubber rings 7 are arranged on the socket 3 to ensure the waterproof and anti-permeability performance of a duct bank joint; a bell mouth 4 matched with the socket 3 is arranged at the rear end of the cable duct bank precast concrete module 1 in the longitudinal direction, and an anti-collision rubber pad 8 is arranged at the outermost side of the bell mouth 4, so that the damage to a duct bank structure caused by collision at a joint during socket lap joint construction is prevented; therefore, the pipe with the front end and the rear end provided with the matched socket and the socket structure serves as a basic connecting module, the cable pipe prefabricated concrete module 1 can be longitudinally limited by splicing the socket 3 and the socket 4 without arranging other interface matching joint structures, and the cable pipe prefabricated concrete module 1 can be longitudinally and continuously arranged.
Set up tongue and groove 5 on cable duct bank precast concrete module 1's upper surface, and the lower surface set up with last tongue and groove 5 assorted lower concave convex groove 6, through last tongue and groove 5 and lower concave convex groove 6 mutual interlock realize vertical cable duct bank precast concrete module 1's vertical spacing, arrange through cable duct bank precast concrete module 1's vertical stack, can adapt to the different return circuit number demands of different circuits in a flexible way.
As shown in fig. 6, T-shaped steel sections 9 are arranged at the front and rear longitudinal ends of the cable duct bank precast concrete module 1, bolt holes 91 are formed in the T-shaped steel sections (9), and the T-shaped steel sections 9 of the adjacent cable duct bank precast concrete modules 1 are fixed by bolts 93 and nuts 94, so that the splicing between the adjacent cable duct bank precast concrete modules 1 is fixed, and the splicing quality of the cable duct bank precast concrete modules 1 and the overall stability of the duct bank structure are ensured. In addition, the T-shaped steel sections 9 are integrally connected through the counter-pulling steel bars 92, so that the integral rigidity of the T-shaped steel sections 9 is guaranteed, the adhesive force between the T-shaped steel sections 9 and the module concrete is improved, and the longitudinal connection performance between the cable duct bank precast concrete modules 1 is improved.
The curvature design of the cable duct bank precast concrete module 1 is shown in fig. 7, the central angle of each cable duct bank precast concrete module 1 is 30 degrees, the curvature radius is 5m, namely 12 cable duct bank precast concrete modules 1 can be spliced into a closed ring. The standardized cable duct bank precast concrete module 1 meets the requirement of the upper limit of the bending rate of the cable and the adaptability of the precast module preparation and construction, can accurately splice the steering angle required by the cable duct bank structure, and can also enable the duct bank structure to accurately return to the direction of the original line after avoiding obstacles.
As shown in fig. 8 to 9, the actually required steering angle of the cable outlet duct bank structure can be adjusted by the longitudinal splicing number of the cable outlet duct bank precast concrete modules 1. The steering angle of the precast concrete module 1 for the single cable duct bank is the central angle of the precast concrete module 1 for the cable duct bank, and then the steering angle after the vertical splicing of the precast concrete modules 1 for the n cable duct banks is as follows: n x the central angle of the precast concrete module for a single cable duct 1.
As shown in fig. 10 to 12, a combination structure with a turning angle of 90 ° or 180 ° is formed by longitudinally splicing the precast concrete modules 1 for cable duct bank, and then 2 combination structures with a turning angle of 90 ° are used to match to realize horizontal translation of the cable duct bank structure and avoid the obstacle area 10, or 2 combination structures with a turning angle of 180 ° are used to match to realize accurate return to the original line direction after avoiding the obstacle area 10.
As shown in fig. 13-15, the precast concrete module for cable duct bank 1 can be used for each layer of the multi-layer cable duct bank structure independently, and the steering of each layer of the cable duct bank structure in different directions and angles is realized, so that the line shunting design requirement of the cable duct bank structure is realized, and the specific arrangement mode can be customized, spliced and combined according to the actual engineering requirement.
The embodiments of the present invention are not limited thereto, and according to the above-mentioned contents of the present invention, the central angle and the curvature radius of the precast concrete module for cable ducts can be designed and processed according to the actual engineering situation according to the ordinary skill and conventional means in the art without departing from the basic technical idea of the present invention; the longitudinal and vertical connection adopted by the cable duct bank precast concrete module also has other modes; the size of the cable duct bank precast concrete module and the pipe diameter of the internal power cable pipeline can be determined according to the actual cable condition of a line, and other types of pipelines such as communication pipelines can be arranged; the T-shaped steel and the counter-pulling steel bars for longitudinal fixation can also adopt other similar structural shapes and can also adopt other connection modes except bolt connection. Therefore, the present invention is susceptible to various modifications, substitutions and changes, and falls within the scope of the appended claims.
Claims (9)
1. The utility model provides a cable duct bank precast concrete module which characterized in that: the cable duct bank precast concrete module (1) is integrally fan-shaped, a plurality of cable ducts (2) are arranged in the cable duct bank precast concrete module, and the curvature of the cable ducts (2) is consistent with that of the fan-shaped cable ducts.
2. Cable duct bank precast concrete module according to claim 1, characterized in that: the cable duct bank precast concrete module (1) is longitudinally provided with a socket (3) and a socket (4) at the front end and the rear end respectively.
3. Cable duct bank precast concrete module according to claim 2, characterized in that: and a sealing waterproof rubber ring (7) is arranged on the socket (3).
4. A cable duct bank precast concrete module according to claim 3, characterized in that: the number of the sealing waterproof rubber rings (7) is 2.
5. Cable duct bank precast concrete module according to claim 2, characterized in that: the bellmouth (4) is provided with an anti-collision rubber pad (8).
6. Cable duct bank precast concrete module according to any of claims 1 to 5, characterized in that: two T-shaped section steel (9) are arranged at the longitudinal front end and the rear end of the cable duct bank precast concrete module (1), the two T-shaped section steel (9) at the same end are connected together through opposite-pulling steel bars (92), and the outward-extending wings of the T-shaped section steel (9) are provided with bolt holes (91).
7. Cable duct bank precast concrete module according to claim 6, characterized in that: the T-shaped steel (9) is connected with the corresponding counter-pulling reinforcing steel bar (92) through welding.
8. Cable duct bank precast concrete module according to claim 1, characterized in that: the upper surface and the lower surface of the cable duct bank precast concrete module (1) are respectively provided with an upper concave-convex groove structure (5) and a lower concave-convex groove structure (6) which are matched with each other.
9. Cable duct bank precast concrete module according to claim 1, characterized in that: the central angle of the fan shape is 15 degrees or 30 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911109418.5A CN110797827A (en) | 2019-11-13 | 2019-11-13 | Precast concrete module for cable duct bank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911109418.5A CN110797827A (en) | 2019-11-13 | 2019-11-13 | Precast concrete module for cable duct bank |
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| Publication Number | Publication Date |
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| CN110797827A true CN110797827A (en) | 2020-02-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911109418.5A Pending CN110797827A (en) | 2019-11-13 | 2019-11-13 | Precast concrete module for cable duct bank |
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| CN (1) | CN110797827A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111585214A (en) * | 2020-04-03 | 2020-08-25 | 国网浙江省电力有限公司湖州供电公司 | Prefabricated assembled cable laying structure of cable trench facility |
| CN114566835A (en) * | 2022-04-28 | 2022-05-31 | 龙信集团江苏建筑产业有限公司 | Butt joint device for embedded components of internal circuits of concrete prefabricated wall boards |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08298717A (en) * | 1995-04-26 | 1996-11-12 | Mitsubishi Material Kenzai Kk | Block in underground multi-purpose duct of electric wire and its connecting method and member |
| CN106410692A (en) * | 2016-10-19 | 2017-02-15 | 国网上海电力设计有限公司 | Track device used for cable turning tube-through laying |
| CN206135311U (en) * | 2016-10-19 | 2017-04-26 | 国网上海电力设计有限公司 | A rail set that is used for cable turn poling to lay |
| CN110233465A (en) * | 2019-07-09 | 2019-09-13 | 华南理工大学 | A kind of structure enhanced type cable duct bank module |
| CN211556812U (en) * | 2019-11-13 | 2020-09-22 | 华南理工大学 | Cable duct bank prefabricated module |
-
2019
- 2019-11-13 CN CN201911109418.5A patent/CN110797827A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08298717A (en) * | 1995-04-26 | 1996-11-12 | Mitsubishi Material Kenzai Kk | Block in underground multi-purpose duct of electric wire and its connecting method and member |
| CN106410692A (en) * | 2016-10-19 | 2017-02-15 | 国网上海电力设计有限公司 | Track device used for cable turning tube-through laying |
| CN206135311U (en) * | 2016-10-19 | 2017-04-26 | 国网上海电力设计有限公司 | A rail set that is used for cable turn poling to lay |
| CN110233465A (en) * | 2019-07-09 | 2019-09-13 | 华南理工大学 | A kind of structure enhanced type cable duct bank module |
| CN211556812U (en) * | 2019-11-13 | 2020-09-22 | 华南理工大学 | Cable duct bank prefabricated module |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111585214A (en) * | 2020-04-03 | 2020-08-25 | 国网浙江省电力有限公司湖州供电公司 | Prefabricated assembled cable laying structure of cable trench facility |
| CN111585214B (en) * | 2020-04-03 | 2022-04-01 | 国网浙江省电力有限公司湖州供电公司 | Prefabricated assembled cable laying structure of cable trench facility |
| CN114566835A (en) * | 2022-04-28 | 2022-05-31 | 龙信集团江苏建筑产业有限公司 | Butt joint device for embedded components of internal circuits of concrete prefabricated wall boards |
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