CN107516866A - A kind of Prefabricated cable duct - Google Patents
A kind of Prefabricated cable duct Download PDFInfo
- Publication number
- CN107516866A CN107516866A CN201710759861.1A CN201710759861A CN107516866A CN 107516866 A CN107516866 A CN 107516866A CN 201710759861 A CN201710759861 A CN 201710759861A CN 107516866 A CN107516866 A CN 107516866A
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- cable
- bottom plate
- square steel
- steel group
- furrow bank
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- 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
- H02G9/02—Installations of electric cables or lines in or on the ground or water laid directly in or on the ground, river-bed or sea-bottom; Coverings therefor, e.g. tile
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- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention belongs to Substation Station inner cable facility technology field, a kind of more particularly to Prefabricated cable duct, including multiple cable duct monomers and the cable bearer being arranged in cable duct monomer, cable duct monomer includes the first bottom plate and the second bottom plate being fixedly connected, the first furrow bank and the first square steel group that the upper surface of first bottom plate is set from left to right, the upper end of first furrow bank and the first square steel group sets the first cover plate, the upper end of second bottom plate upper surface the second square steel group and the second furrow bank from left to right, the second square steel group and the second furrow bank sets the second cover plate.The present invention is designed by the way that longitudinal depth design of traditional cable ditch is changed into flattening, under the premise of cable passage section utilization rate is ensured, not only reduce cable laying difficulty of construction, and offered convenience condition for follow-up maintenance maintenance work, and the flexible collocation between multiple Prefabricated blocks, the cable duct of different in width is assembled, the cable laying for adapting to different places uses.
Description
Technical field
The invention belongs to Substation Station inner cable facility technology field, more particularly to a kind of Prefabricated cable duct.
Background technology
Cable duct is that one kind is used for cabling, the underdrain that can be opened, including bottom plate, and side wall is provided with bottom plate
Body, is provided with cover plate on side wall body, and cable and cable terminal case are laid in cable duct.The As-Is analysis of cable duct：
First, traditional cable duct, such cable duct are generally brickwork construction or cast-in-place concrete structure, have continued to use local procurement sand
The construction materials such as stone, fragment of brick, reinforcing bar, cement, live assembling reinforcement, formwork erection, mixing concrete, pour, conserve, building filling wall by laying bricks or stones
And the traditional mode such as rendering, there is many deficiencies in traditional cable ditch, such as brick cable duct intensity is relatively low, hand in manufacturing process
The work building construction amount of labour is big, construction technology is not in place causes ditch weight defect, cracking etc., and concrete cable trench construction work
Phase and curing time are long, cold district winter can not construction and maintenance, Site Template or Vibration Technology is not in place is easily caused honeycomb fiber crops
Face, the mass defects such as stupefied few angle, cracking are lacked, building the technical merit of troop uneven makes construction quality very unbalanced；
2nd, the assembly type cable slot of prefabricated component, with the popularization of intelligent substation, Substation Design gradually to it is intensive arrangement,
Fabricated construction develops.Transformer station's floor space is relatively significantly reduced in the past, and electrical equipment tends to compact arrangement, while secondary sets
Standby to replace substantial amounts of control cable using optical cable more and arranged close to power distribution equipment, point-to-point cable connects in original secondary circuit
Connect and substituted by the optical cable connection of networking so that intelligent substation number of cables greatly reduces, and type selecting to cable duct, buries
Deep, section utilization rate and position propose higher requirement, and such cable duct effectively overcomes site operation quality control
The problems such as hardly possible, long construction period, effectively improve the construction efficiency and economic benefit of transformer station.
The correlative study achievement of the finished cable ditch prefabricated component of existing " U " font domestic at present, its way is according to engineering
Required cable duct size（Width and depth）, a set of specific mould is developed, reinforcing bar has been erected in mould, has poured into concrete,
Through vibrating, initial set, the demoulding, maintenance, arrange modification after the finished product prefabricated component that is formed；Prefabricated component finished product, which is transported to construction of transformer substation, to be showed
After, a laminin concrete cushion is first poured in the cable duct foundation trench excavated, then with hanging device by cable duct finished product
Along orientation lifting in place, levelness is adjusted, upper and lower, left and right alignment, the docking of head and the tail male and female groove, one, which saves one, saves land
Assembly is got up；Seam crossing waterproof mortar jointing after the completion of assembly, so as to complete the construction of cable duct body.Such as：
A kind of assembly type cable slots of application publication number CN106253188A, including U-shaped groove and supporting cover plate, the U-shaped groove
Including more than the 2 U-shaped supports for being provided with pilot hole, by the connector difference successively column assembly connection with U-shaped support both sides
Cant board and cable bearer and the bottom plate for being laid in U-shaped frame bottom；The cant board and bottom plate are U-shaped more than 2
Between support the U-shaped groove using U-shaped support as framework is assembled into by the connector.The structure is disadvantageous in that：It is whole
For individual structure to be longitudinally disposed, it is necessary to which the soil depth excavated is larger, cable bearer is longitudinally disposed multiple, is unfavorable for follow-up inspection
Repair maintenance work.
Application publication number CN105244835A discloses a kind of L types concrete cable trench prefabricated component and its production technology, the L
Type concrete cable trench prefabricated component includes L-shaped concrete body, is disposed with the side wall of concrete body along short transverse
Side wall principal rod and side wall distributing reinforcement along its length, bottom plate in the width direction is disposed with the bottom plate of concrete body
Principal rod and backplane muscle along its length, bottom slab stress muscle one end are connected with side wall principal rod, and bottom slab stress muscle is another
Extend from the medial surface of bottom plate and form a linkage section in one end；The rear and front end of concrete body is also reserved with for pacifying respectively
The semi-circular recesses of water expandable waterstop are filled, the side wall rear and front end of concrete body is embedded with two ironwares up and down respectively,
The both sides lug of ironware offers bolt hole respectively.Although the structure reduces the cost during being prefabricated in the factory, but make
Make to need to carry out two prefabricated components pre-assembled, operation procedure complexity during assembled in situ use, and the cable duct that combination obtains
Size be unique, the demand of different places can not be adapted to.
The content of the invention
In view of this, the purpose of the present invention is in view of the shortcomings of the prior art, there is provided a kind of Prefabricated cable duct, is passed through
Flexible collocation between first furrow bank Prefabricated block, the second furrow bank Prefabricated block and intermediate prefabricated module three, assembles difference
The cable duct of width, the cable laying for adapting to different places uses, and longitudinal depth design of traditional cable ditch is changed to flat
Graduation is designed, and cable duct disclosed by the invention is arranged along ground tile horizontally, under the premise of cable passage section utilization rate is ensured,
Not only reduce cable laying difficulty of construction, and offered convenience condition for follow-up maintenance maintenance work.
To reach above-mentioned purpose, the present invention uses following technical scheme：
A kind of Prefabricated cable duct, including multiple cable duct monomers and the cable bearer being arranged in cable duct monomer, cable
Ditch monomer includes the first bottom plate and the second bottom plate that are fixedly connected, the upper surface of first bottom plate set from left to right first
The upper end of furrow bank and the first square steel group, first furrow bank and the first square steel group sets the first cover plate, the second bottom plate upper end
The upper end of face the second square steel group and the second furrow bank from left to right, the second square steel group and the second furrow bank sets the second cover plate.
Further, the cable bearer on the cable bearer of first furrow bank and the first square steel group sets to interlock up and down
Put, the cable bearer on the cable bearer of second furrow bank and the second square steel group is to be staggered up and down.
Further, osculum is set on first bottom plate and the second bottom plate, on first bottom plate and the second bottom plate
End face is concave surface or domatic, and the osculum is located at concave surface or domatic minimum point.
Further, one or more 3rd bottom plates, the 3rd bottom are set between first bottom plate and the second bottom plate
Plate upper end sets third steel group and four square steel group, and the upper end of the third steel group and four square steel group sets the 3rd lid
Plate.
Further, the cable bearer of the third steel group and the cable bearer of four square steel group set to interlock up and down
Put.
Further, osculum is set on the 3rd bottom plate, and the 3rd bottom plate upper surface is concave surface or domatic, described
Osculum is located at concave surface or domatic minimum point.
Further, in addition to the saturating drainage blanket of rubble that is arranged on below cable duct.
Further, cable bearer is provided with arc-shaped curvature portion, and the lower surface of arc-shaped curvature portion sets support bar, support bar
The other end be connected with the first furrow bank, the second furrow bank or square steel.
Further, the first furrow bank Prefabricated block and the upper end of the second furrow bank Prefabricated block and intermediate prefabricated module are respectively provided with
Slide up and down connection suspended structure.
The beneficial effects of the invention are as follows：
1. the present invention includes multiple cable duct monomers, multiple cables are docked between linking up by male and female groove, the mortar cementation of fissures or logical
Cross sealing joint strip to be connected, integrally formed cable bearer in cable duct monomer, cable duct monomer can be prefabricated by the first furrow bank
Module and the second furrow bank Prefabricated block combine, wherein the first furrow bank Prefabricated block includes the first bottom plate and set from left to right
Put the lid of upper surface setting first of the first furrow bank and the first square steel group on the first bottom plate, the first furrow bank and the first square steel group
Plate, the second furrow bank Prefabricated block include the second bottom plate and the second square steel group being arranged on from left to right on the second bottom plate and second
The upper surface of furrow bank, the second square steel group and the second furrow bank sets the second cover plate；
In addition, one or more intermediate prefabricated modules are added between the first furrow bank Prefabricated block and the second furrow bank Prefabricated block,
Intermediate prefabricated module includes the 3rd bottom plate and the third steel group and four square steel group that are arranged on the 3rd bottom plate, third steel group
The 3rd cover plate is set with the upper end of four square steel group, this structure design can be effectively increased the overall width of the present invention, can basis
The needs of site operation carry out flexible matched combined, while cable laying is met, substation inspection trail are formed, after being easy to
Phase O＆M overhauls.
It is noted that the first furrow bank Prefabricated block, intermediate prefabricated module and the second furrow bank Prefabricated block are mixed using reinforcing bar
Xtah Crude Clay structure, can be prefabricated in factory process, the connected mode of cable bearer and cable duct monomer can use factory once into
The mode that type and bolt are fixed；The size of first bottom plate, the second bottom plate and the 3rd bottom plate be can be designed as into 400mm（Or
500mm）×400mm（Or 500mm）, the first furrow bank, the second furrow bank, the first square steel group, the second square steel group, third steel group and
The height of four square steel group is designed as 400mm or 500mm, and the design of square steel group is operation on the basis for ensureing structural strength
Personnel provide larger operating space, while reduce the input of making material cost, reduce the weight of whole cable duct monomer,
It is easy to the rapid production and safety transport of factory；First furrow bank Prefabricated block, intermediate prefabricated module and the second furrow bank Prefabricated block
Sealed damp-proof of the prior art can be used to handle after assembly, such as male and female groove docking, the mortar cementation of fissures or filling with sealant bar
Reinforced.
2. cable duct compared with the prior art, the present invention uses increase cable duct horizontal span, reduces the pre- of vertical depth
Module combination mode processed forms a kind of compressed structure arrangement, by abolishing longitudinally perpendicular tall and slender structure, reduces layer of structure, drop
The low engineering difficulty of cable laying, and it is beneficial to follow-up maintenance maintenance work；Multiple Prefabricated block collocation modes are flexibly more
Become, used using different cable laying places, and there is relative independentability between multiple Prefabricated blocks, can mutually splice,
Exchange and general.
3. the cable bearer on the cable bearer of the first furrow bank and the first square steel group is to be staggered up and down, the second furrow bank
Cable bearer on cable bearer and the second square steel group is is staggered up and down, the cable bearer and four square steel of third steel group
To be staggered up and down, this structure design can effectively prevent to interfere between cable bearer, improve cable the cable bearer of group
Erection efficiency, strengthen the present invention practicality.
4. to improve the drainage effect of the present invention, the upper surface of the first bottom plate, the second bottom plate and the 3rd bottom plate is designed as
Concave surface, while the minimum point in concave surface sets osculum, or 2% slope is set in the first bottom plate, the second bottom plate and the 3rd bottom plate
Degree, osculum are located at bottom of slope, and the rainwater flowed into cable duct concentrates the saturating draining of rubble flowing to below cable duct from osculum
Layer, the present invention is had from the ability for oozing draining, realize that the saturating drainage blanket of integrated pipe canal function, particularly rubble is ensureing infiltration
Under the premise of, the saturating drainage blanket of rubble has certain deformation space, is suitable for settlement of foundation by a small margin, avoids occurring to make cable duct
Into the phenomenon of stress damage.
In summary, the present invention is designed using compressed structure, by cable duct along ground tile horizontally, shallow foundation.Together
When can according to cable laying requirement along framework center line arrange, make horizontal layout more compact, to a certain extent save take up an area
Area, it is easy to construct and reduces and overhaul O＆M difficulty；With reference to the saturating drainage blanket of " sponge type " rubble, sluiced in cable duct by bottom of trench
Mouth realizes integrated pipe canal function from draining is oozed, and reduces pipe network and intersects, extensive use of the invention, can improve cable passage section
Utilization rate, construction investment is reduced, certainly will will obtain larger economic benefit and social benefit, advantageously reduce excavation and shallow embedding
The workload of journey, especially reduce vertical depth, there is the present invention and be easy to cable laying construction, reduction later stage maintenance O＆M difficult
The characteristics of spending and increasing cable laying newly beneficial to the later stage.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention one；
Fig. 2 is the structural representation of the furrow bank Prefabricated block of the embodiment of the present invention one first；
Fig. 3 is the structural representation of the cover plate of the embodiment of the present invention one first；
Fig. 4 is the structural representation of the furrow bank Prefabricated block of the embodiment of the present invention one second；
Fig. 5 is the structural representation of the embodiment of the present invention two；
Fig. 6 is the structural representation of the intermediate prefabricated module of the embodiment of the present invention two；
Fig. 7 is the structural representation of the cover plate of the embodiment of the present invention 2 the 3rd；
Fig. 8 is the structural representation that the furrow bank Prefabricated block of the embodiment of the present invention 3 first is free of the first cover plate；
Fig. 9 is the cross-sectional view that the furrow bank Prefabricated block of the embodiment of the present invention 4 first is free of the first cover plate.
Label in figure：1- cable beareves, the bottom plates of 2- first, the bottom plates of 3- second, the furrow banks of 4- first, 5- the first square steel groups, 6-
First cover plate, 7- the second square steel groups, the furrow banks of 8- second, the cover plates of 9- second, 10- osculums, the bottom plates of 11- the 3rd, 12- third steels
Group, 13- four square steel groups, the cover plates of 14- the 3rd, the saturating drainage blanket of 15- rubbles, 16- rectangular slots, 17- square grooves, 18- arcs
Bending section, 19- support bars, 20- accommodating chambers, 21- holding tanks, 22- force bearing plates, the links of 23- first, the connecting shafts of 24- first, 25-
Limited block, the links of 26- second, the connecting shafts of 27- second, 28- elongate holes.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.
Embodiment one
As shown in Figures 1 to 4, the present invention includes multiple cable duct monomers and the saturating drainage blanket of rubble being laid on below cable duct
15, the interior cable bearer 1 set of cable duct monomer, cable duct monomer includes being fixedly connected with the first furrow bank Prefabricated block and the second ditch
Wall Prefabricated block, the gap between the first furrow bank Prefabricated block and the second furrow bank Prefabricated block are entered by way of pouring mortar
Row is sealed, and sealing fixation is carried out by the mortar cementation of fissures between multiple cable duct monomers；
First furrow bank Prefabricated block includes the first bottom plate 2 and the first furrow bank 4 and the first square steel that are integrally formed on the first bottom plate 2
The first cover plate 6 is installed in the upper end of group 5, the first furrow bank 4 and the first square steel group 5, and the lower surface of the first cover plate 6 is reserved and the first furrow bank
4 and first groove that fastens of square steel group 5；
Second furrow bank Prefabricated block includes the second bottom plate 3 and the second square steel group 7 for being arranged on from left to right on the second bottom plate 3 and the
The upper end of two furrow banks 8, the second square steel group 7 and the second furrow bank 8 sets the second cover plate 9, and the lower surface of the second cover plate 9 is reserved and second
The groove that the furrow bank 8 of square steel group 7 and second fastens；
Cable bearer 1 uses composite material bracket, the cable bearer 1 in the square steel group 5 of cable bearer 1 and first of the first furrow bank 4
To be staggered up and down, 7 cable bearer 1 is to be staggered up and down in the square steel group of cable bearer 1 and second of the second furrow bank 8,
First bottom plate 2, the first furrow bank 4, the first cover plate 6, the second bottom plate 3, the second furrow bank 8 and the second cover plate 9 use armored concrete
Prefabricated to form, the cable bearer 1 in the first square steel group 5 and the first furrow bank 4 is embedded on the first bottom plate 2 and the first furrow bank 4 respectively,
Cable bearer 1 in first square steel group 5 is fixed by bolt, the cable bearer 1 in the second square steel group 7 and the second furrow bank 8
It is embedded in respectively on the first bottom plate 2 and the first furrow bank 4, the cable bearer 1 of the second square steel group 7 is fixed by bolt, and first
Osculum 10 is set on the plate of 2 and second bottom of bottom plate 3, and the first bottom plate 2 and the upper surface of the second bottom plate 3 are concave surface, and osculum 10 is located at
The minimum point of concave surface；
It need to be pointed out that the first square steel group 5 and the second square steel group 7 include the knot of two square steel, the first cover plate 6 and the second cover plate 9
Structure is identical, as shown in figure 4, illustrated by taking the first cover plate 6 as an example, wherein the clamping of 16 and first furrow bank of rectangular slot 4 in left side,
Two square grooves 17 on right side fasten with the first square steel group 5, the first bottom plate 2, the first furrow bank 4, the first cover plate 6, the second bottom
Plate 3, the second furrow bank 8 and the second cover plate 9 can also use the materials such as fiberglass, high-intensity fiber to be made.
Embodiment two
The present embodiment and the structure of embodiment one are essentially identical, unlike：As shown in Figures 5 to 7, in the first furrow bank prefabricated molds
One or more intermediate prefabricated modules are added between block and the second furrow bank Prefabricated block, intermediate prefabricated module includes one or more
3rd bottom plate 11 and the third steel group 12 and four square steel group 13 for being arranged on the upper surface of the 3rd bottom plate 11, the present embodiment is with one
Illustrated exemplified by 3rd bottom plate 11, the 3rd bottom plate 11 is arranged on the first bottom plate 2 and the second bottom plate 3 using reinforced concrete structure
Between, third steel group 12 and four square steel group 13 are embedded in the upper surface of the first bottom plate 11, third steel group 12 and four directions
The upper end of steel group 13 sets the 3rd cover plate 14, and the lower surface of the 3rd cover plate 14 is set and third steel group 12 and four square steel group 13
The square groove 17 to fasten, the cable bearer of third steel group 12 and the cable bearer 1 of four square steel group 13 are to interlock up and down
Set, osculum 10 is set on the 3rd bottom plate 11, and the upper surface of the 3rd bottom plate 11 is concave surface, and osculum 10 is located at the minimum of concave surface
Point；It is noted that third steel group 12 and four square steel group 13 include two square steel.
Embodiment three
The present embodiment and the structure of embodiment two are essentially identical, unlike：Cable bearer 1 is provided with arc-shaped curvature portion 18, arc
The radian of shape bending section 18 be less than 180 °, while arc-shaped curvature portion 18 lower surface set support bar 19, support bar 19 it is another
One end is connected with the first furrow bank 4, the second furrow bank 8 or square steel, as shown in figure 8, being said by taking the first furrow bank Prefabricated block as an example
Bright, during actual fabrication, the support bar 19 on the first furrow bank 4 is pre-buried using being carried out with the same fixed form of cable bearer 1
Set, the support bar 19 in the first square steel group 5 is fixed by bolt, the structure of the second furrow bank Prefabricated block and intermediate module
Similar with the structure of the first furrow bank Prefabricated block, this is not repeated.
When in use, arc-shaped curvature portion 18 is used for the fast positioning of cable to the structure design of the present embodiment, and can prevent
Rolling, the phenomenon of change in displacement, while support bar 19 occur after cable laying to be used to provide holding power for cable bearer 1, effectively
Prevent cable bearer deformation, improve the service life of the present invention, it is particularly big or rainy season, cable bearer 1 are grown in air humidity
The phenomenon that phase can cause cable to tumble using aging deformation be present, by the collocation design of arc-shaped curvature portion 18 and support bar 19,
The technical problem, which can effectively be prevented, influences cable communication.
Example IV
The present embodiment and the structure of embodiment three are essentially identical, unlike：First furrow bank Prefabricated block and the second furrow bank are prefabricated
The upper end of module and intermediate prefabricated module adds suspended structure, as shown in figure 9, being said by taking the first furrow bank Prefabricated block as an example
Bright, two groups of accommodating chambers 20 being connected and holding tank 21 are preset in the upper end of the first furrow bank 4（One group of front is shown in figure）, suspension knot
Structure includes the force bearing plate 22 in the accommodating chamber 20, the first link 23 in holding tank 21 and connection force bearing plate 22 and the
First connecting shaft 24 of one link 23, the thickness of force bearing plate 22 are less than the height of accommodating chamber 20, the lower end of the first connecting shaft 24 with
Force bearing plate 22 is fixedly connected, and the upper end of the first connecting shaft 24 is rotatablely connected with the first link 23, and the suspended structure of the first furrow bank 4 exists
Pre-buried setting when reinforced concrete structure is molded, limited block 25, the first square steel group are respectively provided with two square steel of the first square steel group 5
Suspended structure on 5 includes the second link 26 and the second connecting shaft 27 of rotation connection, and strip is set in the second connecting shaft 27
Hole 28, the second connecting shaft 27 can slide up and down certain amplitude in the case where limited block 25 is spacing, because the second furrow bank Prefabricated block is with
Between module structure it is similar with the structure of the first furrow bank Prefabricated block, this is not repeated.
By setting concealed hitch in the present embodiment, during using lifting appliance connecting cable ditch,
Can by the link for hanging over suspended structure of lifting appliance, after splicing, hitch glide automatically fall after rise it is supreme
The position that end face flushes with Prefabricated block, does not influence the engaging between cover plate and Prefabricated block, and this structure design can either ensure
Lifting speed, it can realize that the perfection of cover plate is assembled again, practical operation is significant.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, this area is common
Other modifications or equivalent substitution that technical staff is made to technical scheme, without departing from technical solution of the present invention
Spirit and scope, all should cover among scope of the presently claimed invention.
Claims (7)
- A kind of 1. Prefabricated cable duct, it is characterised in that：Including multiple cable duct monomers and it is arranged in cable duct monomer Cable bearer, cable duct monomer include the first bottom plate and the second bottom plate being fixedly connected, and the upper surface of first bottom plate is certainly left The upper end of the first furrow bank set to the right and the first square steel group, first furrow bank and the first square steel group sets the first cover plate, institute State the second bottom plate upper surface the second square steel group and the second furrow bank from left to right, the upper end of the second square steel group and the second furrow bank is set Put the second cover plate.
- A kind of 2. Prefabricated cable duct according to claim 1, it is characterised in that：The cable bearer of first furrow bank With the cable bearer in the first square steel group to be staggered up and down, on the cable bearer of second furrow bank and the second square steel group Cable bearer is to be staggered up and down.
- A kind of 3. Prefabricated cable duct according to claim 1, it is characterised in that：First bottom plate and the second bottom plate Upper setting osculum, first bottom plate and the second bottom plate upper surface are concave surface or domatic, and the osculum is located at concave surface or slope The minimum point in face.
- A kind of 4. Prefabricated cable duct according to claim 1, it is characterised in that：First bottom plate and the second bottom plate Between one or more 3rd bottom plates are set, the 3rd bottom plate upper end sets third steel group and four square steel group, described the The upper end of three square steel group and four square steel group sets the 3rd cover plate.
- A kind of 5. Prefabricated cable duct according to claim 4, it is characterised in that：The cable branch of the third steel group Frame and the cable bearer of four square steel group are to be staggered up and down.
- A kind of 6. Prefabricated cable duct according to claim 4, it is characterised in that：Draining is set on 3rd bottom plate Hole, the 3rd bottom plate upper surface are concave surface or domatic, and the osculum is located at concave surface or domatic minimum point.
- A kind of 7. Prefabricated cable duct according to any one of claim 1 to 6, it is characterised in that：Also include being arranged on The saturating drainage blanket of rubble below cable duct.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710759861.1A CN107516866A (en) | 2017-08-30 | 2017-08-30 | A kind of Prefabricated cable duct |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710759861.1A CN107516866A (en) | 2017-08-30 | 2017-08-30 | A kind of Prefabricated cable duct |
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| CN107516866A true CN107516866A (en) | 2017-12-26 |
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| CN108448524A (en) * | 2018-04-04 | 2018-08-24 | 武汉市欣山新材料科技有限公司 | Pre-fabricated electric cables ditch and construction method |
| CN108923344A (en) * | 2018-06-22 | 2018-11-30 | 中铁第四勘察设计院集团有限公司 | A kind of comprehensive pipeline arragement construction based on energy storage type tramcar engineering |
| CN109167322A (en) * | 2018-09-07 | 2019-01-08 | 国网山东省电力公司蓬莱市供电公司 | A kind of telescoping cable operculum colpi plate bracing frame |
| CN112152179A (en) * | 2020-08-06 | 2020-12-29 | 广东电网有限责任公司广州供电局 | Prefabricated cable trench and construction method thereof |
| WO2021085626A1 (en) * | 2019-10-30 | 2021-05-06 | 古河電気工業株式会社 | Housing unit |
| CN113013789A (en) * | 2021-04-15 | 2021-06-22 | 汇源电气有限公司 | Cable laying construction process |
| CN114156785A (en) * | 2021-11-30 | 2022-03-08 | 南京苏秦电力设备安装有限公司 | Power cable laying process |
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| CN108448524A (en) * | 2018-04-04 | 2018-08-24 | 武汉市欣山新材料科技有限公司 | Pre-fabricated electric cables ditch and construction method |
| CN108923344A (en) * | 2018-06-22 | 2018-11-30 | 中铁第四勘察设计院集团有限公司 | A kind of comprehensive pipeline arragement construction based on energy storage type tramcar engineering |
| CN108923344B (en) * | 2018-06-22 | 2023-06-20 | 中铁第四勘察设计院集团有限公司 | Comprehensive pipeline arrangement structure based on energy storage type tramcar engineering |
| CN109167322A (en) * | 2018-09-07 | 2019-01-08 | 国网山东省电力公司蓬莱市供电公司 | A kind of telescoping cable operculum colpi plate bracing frame |
| WO2021085626A1 (en) * | 2019-10-30 | 2021-05-06 | 古河電気工業株式会社 | Housing unit |
| CN112152179A (en) * | 2020-08-06 | 2020-12-29 | 广东电网有限责任公司广州供电局 | Prefabricated cable trench and construction method thereof |
| CN112152179B (en) * | 2020-08-06 | 2022-07-08 | 广东电网有限责任公司广州供电局 | Prefabricated cable trench and construction method thereof |
| CN113013789A (en) * | 2021-04-15 | 2021-06-22 | 汇源电气有限公司 | Cable laying construction process |
| CN114156785A (en) * | 2021-11-30 | 2022-03-08 | 南京苏秦电力设备安装有限公司 | Power cable laying process |
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Application publication date: 20171226 |