CN108832563A - A kind of pre-fabricated electric cables comb and its construction method - Google Patents
A kind of pre-fabricated electric cables comb and its construction method Download PDFInfo
- Publication number
- CN108832563A CN108832563A CN201811001829.8A CN201811001829A CN108832563A CN 108832563 A CN108832563 A CN 108832563A CN 201811001829 A CN201811001829 A CN 201811001829A CN 108832563 A CN108832563 A CN 108832563A
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- Prior art keywords
- electric cables
- fabricated electric
- comb
- cables comb
- bellmouth
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- 238000010276 construction Methods 0.000 title claims abstract description 28
- 210000001520 comb Anatomy 0.000 claims abstract description 3
- 239000010410 layer Substances 0.000 claims description 24
- 239000011229 interlayer Substances 0.000 claims description 16
- 239000000565 sealant Substances 0.000 claims description 8
- 239000002390 adhesive tape Substances 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 238000007789 sealing Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000003032 molecular docking Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004801 Chlorinated PVC Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920000457 chlorinated polyvinyl chloride Polymers 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
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
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0462—Tubings, i.e. having a closed section
- H02G3/0487—Tubings, i.e. having a closed section with a non-circular cross-section
-
- 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
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
-
- 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
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0406—Details thereof
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
- Electric Cable Installation (AREA)
Abstract
The invention discloses a kind of pre-fabricated electric cables comb and its construction methods, belong to power construction field.Pre-fabricated electric cables comb of the invention is internally provided with cable pipeline, and bellmouth and socket is respectively set in the both ends of the pre-fabricated electric cables comb, and two section pre-fabricated electric cables combs are longitudinally docked by bellmouth with socket.The features such as present invention has construction efficiency high, quality of finished product good, safe and reliable, economic and environment-friendly, be able to solve the cast-in-place cable duct bank of tradition there are the problem of.
Description
Technical field
The present invention relates to power construction field, especially a kind of pre-fabricated electric cables comb and its construction method.
Background technique
With the growth requirement of Urbanization Construction, power cable gradually switchs to underground laying by setting up in the air.Traditional electricity
Cable generallys use cable duct bank form laying when laying lays cable channel that is, by digging in-situ foundation trench, then pours coagulation
Soil maintenance molding.
But this traditional construction mode has the following disadvantages：（1）Engineering construction is long in time limit；（2）Engineering cost is difficult to control；
（3）Construction quality is difficult to guarantee；（4）Construction site is seriously polluted etc..In particular, during the laying of city cable comb, this
Kind form of construction work also will cause urban road closure, and poured in place concrete pollution environment but will seriously affect the daily of people
Life, does not meet the demand of Modern Urban Development.
Summary of the invention
Object of the present invention is to：The problem of for above-mentioned traditional construction mode, provide a kind of pre-fabricated electric cables comb and
Its construction method.The features such as technical solution is high with construction efficiency, quality of finished product good, safe and reliable, economic and environment-friendly, can solve
Certainly traditional cast-in-place cable duct bank there are the problem of.
Specifically, the present invention adopts the following technical solutions realize：A kind of pre-fabricated electric cables comb, is internally provided with line
Bellmouth and socket is respectively set in cable pipeline, the both ends of the pre-fabricated electric cables comb, and two section pre-fabricated electric cables combs are by bellmouth and insert
The longitudinal docking of mouth.
Furthermore, the bellmouth is the U-shaped structure of upper opening, and the socket is the U of recess corresponding with bellmouth
Type structure.
Furthermore, the side of the bellmouth and socket is corresponding inclined-plane.
Furthermore, two end side surfaces of the pre-fabricated electric cables comb are equipped with connection bolt slot.
Furthermore, the bellmouth end face is equipped with sealant bar groove.
Furthermore, it is pre-buried to be embedded with interlayer connection for the side top of the pre-fabricated electric cables comb and bottom corresponding position
Part.
Furthermore, the top surface of the pre-fabricated electric cables comb is embedded with lifting built-in fitting.
Furthermore, the cable pipeline is pre-buried finished cable pipe special or is made of concrete core pulling
Pipeline.
Furthermore, cable pipeline both ends nozzle has circular arc chamfering or is horn mouth.
The construction method of pre-fabricated electric cables comb disclosed by the invention, includes the following steps：
1）Foundation trench excavates, and laying bed course is simultaneously levelling；
2）Hoisting prefabricated cable duct bank is in place, calibrating position and direction；
3）The adhesive seal adhesive tape in the sealant bar groove of the bellmouth end face of pre-fabricated electric cables comb lifts next section pre-fabricated electric cables row
Pipe carries out socket joint overlap joint, and places connection bolt, fastening bolt in connection bolt slot；
4）Repeat step 3）Carry out the longitudinally connected of pre-fabricated electric cables comb.
Furthermore, the above method is further comprising the steps of：Upper layer is carried out when lower layer's pre-fabricated electric cables comb is laid with
It is laid with, hoisting prefabricated cable duct bank is placed on lower layer's pre-fabricated electric cables comb, the joint arrangement of upper layer pre-fabricated electric cables comb is existed
In the middle part of lower layer's pre-fabricated electric cables comb pipe shaft, and it is aligned the interlayer built-in fitting of upper and lower level pre-fabricated electric cables comb side, utilizes connector
Connect upper and lower level pre-fabricated electric cables comb.
Beneficial effects of the present invention are as follows：
（1）Pre-fabricated electric cables comb of the invention can be able to achieve the quick peace of longitudinal direction, interlayer with modularized production, modularization assemble
Dress meets the arrangement form of existing various comb designs；
（2）The lap joint form of U-shaped bell and spigot guarantees that installation can be rapidly performed by while connector bonding strength, installs
Effect is very clear, and construction quality controllability is strong；
（3）Sealing joint strip is arranged in bellmouth end face, effectively prevents the collision of connector when socket joint lapping construction to the damage of sealing joint strip
It is bad, so that the barrier performance of connector be effectively ensured；
（4）Interlayer stack arrangement form, can satisfy prefabricated comb it is vertical on splicing, while the interlayer fissure of displacement stack, can have
The ability of joint anti-settling between effect enhancement layer；
（5）The circular arc chamfering or horn mouth of cable pipeline nozzle effectively eliminate pipe caused by longitudinal 2-section pipe road contraposition is not allowed
Mouth faulting of slab ends guarantees smoothly penetrating for cable, eliminates nozzle and scratches to cable；
（6）The inclined-plane Jun Zuo processing in bell and spigot side can meet the steering requirement of longitudinal upper certain angle；
（7）Pre-fabricated electric cables comb form of construction work of the invention all uses dry type to connect, and live wet-less operation is environment friendly and pollution-free,
Without formwork assembling and disassembling operation, be not necessarily to concrete curing, install can grave mound restore place original appearance, quickly and efficiently.
Detailed description of the invention
Fig. 1 is pre-fabricated electric cables comb end view in the embodiment of the present invention.
Fig. 2 is pre-fabricated electric cables comb side schematic view in the embodiment of the present invention.
Fig. 3 is pre-fabricated electric cables comb top schematic diagram in the embodiment of the present invention.
Fig. 4 is the longitudinally connected schematic diagram of pre-fabricated electric cables comb in the embodiment of the present invention.
Fig. 5 is the longitudinally connected three-dimensional figure of pre-fabricated electric cables comb in the embodiment of the present invention.
Fig. 6 is junction steel plate structural schematic diagram.
Fig. 7 is pre-fabricated electric cables comb interlayer connection schematic diagram.
Label in figure：
1：Prefabricated electricity channel；10：Lift by crane built-in fitting；11：Prefabricated comb female end；12：Prefabricated comb socket end；13：Bellmouth；
14：Socket；15：Connect bolt slot；16：Interlayer connects built-in fitting；17：Sealant bar groove；18：Power cable pipeline；19：Communication
Cable pipeline；131：Bellmouth inclined-plane；141：Socket inclined-plane；181：Horn mouth
2：Connect bolt；
3：Sealing joint strip；
4：Junction steel plate；41：Waist hole.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention
Embodiment 1：
The present embodiment is a kind of pre-fabricated electric cables comb.The factorial production, quality of finished product good, scene dress can be used in pre-fabricated electric cables comb
Assembled with changing, various informative, mechanization installation effectiveness is high, install can grave mound access, be not required to water-bearing concreae work at the scene
Industry, especially in the laying work of city cable pipeline, effect is become apparent from, and can reach fluting, at night construction, morning at dusk
The effect that grave mound, daytime are open to traffic guarantees townie normal operation.
As shown in Figure 1, the pre-fabricated electric cables comb 1 of the present embodiment, end face rectangular in cross-section, internal pre-buried cable pipeline,
Cable pipeline peripheral disposition has framework of steel reinforcement, and generally concreting forms.Cable pipeline includes 18 He of power cable pipeline
Communication cable pipeline 19, section can be for circle, rectangles etc., can be by finished cable pipe special Preembedded, can also be by coagulation
Native core pulling molding, pipe diameter are arranged, for example up to 100mm ~ 200mm with matrix arrangement by row × column：1 × N, 2 × N, 3
× N, 4 × N etc.（N=2,3,4,5,6,7,……）.
In the present embodiment, cable pipeline is pre-buried using CPVC circular pipe, and wherein 18 diameter of power cable pipeline is
175mm, is in 3 × 4 matrix arrangements, and the communication cable pipeline 19 of 2 diameter 100mm is arranged in side.All cable tube deferents
Mouth does horn mouth processing（Such as the horn mouth 181 in Fig. 2,3）, radius of the radian R is 15mm to nozzle outside, according to different cables
Pipe diameter can also be 10mm ~ 20mm.Or cable pipeline nozzle can also do circular arc chamfering processing.Due in cable pipeline nozzle
Provided with circular arc chamfering or horn mouth, nozzle faulting of slab ends caused by longitudinal 2-section pipe road contraposition is not allowed can be effectively eliminated, to protect
Card cable smoothly penetrates, and eliminates nozzle and scratches to cable.
As shown in Figure 2-5, the both ends of pre-fabricated electric cables comb 1 are respectively prefabricated comb female end 11 and prefabricated comb socket end
12.The outer end of prefabricated comb female end 11 is bellmouth 13, and the outer end of prefabricated comb socket end 12 is socket 14.Two section pre-fabricated electric cables
Comb carries out longitudinal docking by bell and spigot, fastens connector using connecting screw 2 after the completion of docking.
Bellmouth 13 includes two sidewalls and bottom plate, and in the U-shaped structure of upper opening, bellmouth length can be 100mm ~ 200mm, such as
100mm, for wall thickness up to 50mm ~ 100mm, such as 60mm, two sidewalls inner surface does 2 ° ~ 4 ° of bellmouth inclined-plane 131, and such as 3 °.Socket 14
For the U-shaped structure of recess corresponding with bellmouth 13, cup depth is corresponding with the wall thickness of bellmouth 13 and length respectively with length.
14 two sides of socket have the socket inclined-plane 141 with 131 respective angles of bellmouth inclined-plane.The lap joint form of U-shaped bell and spigot guarantees to connect
It can be rapidly performed by installation while head bonding strength, installation effect is very clear, and construction quality controllability is strong.Socket joint
The inclined-plane processing of mouth side can also meet the steering requirement of longitudinal upper certain angle.
It to be sealed between bell and spigot.Sealant bar groove 17 is set on 13 end face of bellmouth, along cable pipeline outermost
One week, a circle sealing joint strip 3 is pasted before docking, and prevents slime water at docking rear joint from penetrating into cable channel.The present embodiment
The rectangular channel of the cross section of sealant bar groove 17 can also be in inverted trapezoidal or arc, and groove width can be 10mm ~ 30mm, such as
15mm, depth can be 5mm ~ 10mm, such as 5mm, adhesive seal adhesive tape 3 in slot.The sealing joint strip 3 is water-swellable adhesive tape, section
It can be round or rectangle, inside is hollow or solid construction.Sealing joint strip 3 is set in 13 end face of bellmouth, can effectively prevent socket joint
Connector collides the damage to sealing joint strip 3 when lapping construction, so that the barrier performance of connector be effectively ensured.
Bolt 2 is connected to place, two end side surfaces of pre-fabricated electric cables comb 1 are provided with connection bolt slot 15.The connection spiral shell
Croze 15 is made of binding groove and screw slot.Binding groove rectangular in cross-section, it is long up to 50mm ~ 120mm, such as 100mm, it is wide reachable
50mm ~ 120mm, such as 100mm, deep up to 60mm ~ 100mm, such as 60mm, locking side is embedded with pressure-bearing billet.Screw rod flute length
Up to 100mm ~ 300mm, wide reachable 16mm ~ 40mm, deep reachable 20mm ~ 40mm, such as 30mm, wherein prefabricated comb female end 11
Screw slot can be slightly longer, if the screw slot of 200mm, prefabricated comb socket end 12 can be slightly short, such as long 100mm.
As shown in fig. 6-7, for convenience of stacking construction, side top and bottom pair of the present embodiment in pre-fabricated electric cables comb 1
Answer the pre-buried interlayer connection built-in fitting 16 in position.It, can be by interlayer in this way when stacking arrangement to the progress of pre-fabricated electric cables comb 1 upper and lower level
Connection built-in fitting 16 corresponds to two-by-two, using junction steel plate 4 and fastening is bolted, so that the prefabricated comb of upper and lower level is connected to one
It rises, the interlayer fissure of displacement stacks when stacking.The arrangement form that this interlayer stacks, can satisfy prefabricated comb it is vertical on splicing, together
When the interlayer fissure of displacement stack can also effectively between enhancement layer joint anti-settling ability
In the present embodiment, it is pre-buried screw shell that interlayer, which connects built-in fitting 16, and screw shell internal diameter is 10mm ~ 20mm, thread bush
Cylinder top is welded with rectangle pressure-bearing billet.Junction steel plate 4 is in rectangle, long 100mm ~ 200mm, wide 50mm ~ 100mm, junction steel plate
On have 2 bolt waist holes 41, in being mutually perpendicular to arrange, for wearing bolt.
As Figure 2-3, it is operated for convenience of the lifting of pre-fabricated electric cables comb 1, the present embodiment is upper pre-fabricated electric cables comb 1
The pre-buried lifting built-in fitting 10 in surface.The lifting built-in fitting 10 hangs nail using pre-buried, and quantity is no less than 4, is arranged in pre-fabricated electric cables
The upper surface surrounding of comb 1, the pre-buried framework of steel reinforcement for hanging nail Yu pre-fabricated electric cables comb 1.Lifting built-in fitting 10 can also be used pre-buried
The modes such as screw shell or HPB round steel hanging ring are realized.
The construction method of the pre-fabricated electric cables comb 1 of the present embodiment is as follows：
1）Foundation trench excavates, and laying bed course is simultaneously levelling, and the bed course is sand-gravel cushion, divides upper layer and lower layer, one layer of lower part is natural
Graded broken stone, wherein maximum particle diameter is not preferably greater than 25mm, and one layer of top is middle sand, coarse sand；The bed course is plain concrete pad
Layer, strength grade of concrete C15；
2）Hoisting prefabricated cable duct bank is in place, calibrating position and direction；
3）The adhesive seal adhesive tape in the sealant bar groove of pre-fabricated electric cables comb female end lifts next section pre-fabricated electric cables comb,
Socket joint overlap joint is carried out, places connection bolt, fastening bolt after overlap joint alignment in connection bolt slot；
4）Repeat step 3）Carry out the longitudinally connected of pre-fabricated electric cables comb.
5）1st layer of pre-fabricated electric cables comb is laid with while carrying out the 2nd layer of laying, and hoisting prefabricated cable duct bank is placed on the 1st
On layer, by the joint arrangement of the 2nd layer of pre-fabricated electric cables comb in the middle part of the 1st layer of pre-fabricated electric cables comb pipe shaft, and to lower layer side thereon
The interlayer built-in fitting in face with junction steel plate and is bolted upper and lower level pre-fabricated electric cables comb.
6）Repeat the installation that above step carries out the 2nd layer of pre-fabricated electric cables comb.
Although the present invention has been described by way of example and in terms of the preferred embodiments, embodiment is not for the purpose of limiting the invention.Not
It is detached from the spirit and scope of the present invention, any equivalent change or retouch done also belongs to the protection scope of the present invention.Cause
This protection scope of the present invention should be based on the content defined in the claims of this application.
Claims (11)
1. a kind of pre-fabricated electric cables comb, is internally provided with cable pipeline, it is characterised in that：The both ends of the pre-fabricated electric cables comb point
Not She Zhi bellmouth and socket, two section pre-fabricated electric cables combs dock by the way that bellmouth and socket are longitudinal.
2. pre-fabricated electric cables comb as described in claim 1, it is characterised in that：The bellmouth is the U-shaped structure of upper opening, institute
State the U-shaped structure that socket is recess corresponding with bellmouth.
3. pre-fabricated electric cables comb as claimed in claim 2, it is characterised in that：The side of the bellmouth and socket is corresponding
Inclined-plane.
4. pre-fabricated electric cables comb as described in claim 1, it is characterised in that：Two end side surfaces of the pre-fabricated electric cables comb are equipped with
Connect bolt slot.
5. pre-fabricated electric cables comb as described in claim 1, it is characterised in that：The bellmouth end face is equipped with sealant bar groove.
6. pre-fabricated electric cables comb as described in claim 1, it is characterised in that：The side top of the pre-fabricated electric cables comb and bottom
Portion's corresponding position is embedded with interlayer connection built-in fitting.
7. pre-fabricated electric cables comb as described in claim 1, it is characterised in that：The top surface of the pre-fabricated electric cables comb has been embedded with
Hang built-in fitting.
8. pre-fabricated electric cables comb as claimed in claim 1, it is characterised in that：The cable pipeline is pre-buried finished product
Cable pipe special is pipeline made of concrete core pulling.
9. pre-fabricated electric cables comb as claimed in claim 8, it is characterised in that：Cable pipeline both ends nozzle has circular arc chamfering
It or is horn mouth.
10. a kind of construction method of pre-fabricated electric cables comb, which is characterized in that include the following steps：
1) foundation trench excavates, and laying bed course is simultaneously levelling；
2) hoisting prefabricated cable duct bank is in place, calibrating position and direction；
3) the adhesive seal adhesive tape in the sealant bar groove of the bellmouth end face of pre-fabricated electric cables comb lifts next section pre-fabricated electric cables row
Pipe carries out socket joint overlap joint, and places connection bolt, fastening bolt in connection bolt slot；
4) it repeats step 3) and carries out the longitudinally connected of pre-fabricated electric cables comb.
11. the construction method of pre-fabricated electric cables comb as claimed in claim 10, which is characterized in that further comprising the steps of：?
The laying on upper layer is carried out when lower layer's pre-fabricated electric cables comb is laid with, hoisting prefabricated cable duct bank is placed on lower layer's pre-fabricated electric cables comb
On, by the joint arrangement of upper layer pre-fabricated electric cables comb in the middle part of lower layer's pre-fabricated electric cables comb pipe shaft, and it is aligned the prefabricated electricity of upper and lower level
The interlayer built-in fitting of cable comb side connects upper and lower level pre-fabricated electric cables comb using connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811001829.8A CN108832563A (en) | 2018-08-30 | 2018-08-30 | A kind of pre-fabricated electric cables comb and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811001829.8A CN108832563A (en) | 2018-08-30 | 2018-08-30 | A kind of pre-fabricated electric cables comb and its construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108832563A true CN108832563A (en) | 2018-11-16 |
Family
ID=64151726
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811001829.8A Pending CN108832563A (en) | 2018-08-30 | 2018-08-30 | A kind of pre-fabricated electric cables comb and its construction method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110233465A (en) * | 2019-07-09 | 2019-09-13 | 华南理工大学 | A kind of structure enhanced type cable duct bank module |
| CN110829342A (en) * | 2019-11-29 | 2020-02-21 | 国网上海市电力公司 | Groove type prefabricated assembly type cable duct bank unit and method |
| CN110924564A (en) * | 2019-11-20 | 2020-03-27 | 中国十七冶集团有限公司 | Electrical pipeline pre-embedding system in secondary structure and implementation method |
| CN112018708A (en) * | 2020-08-06 | 2020-12-01 | 广东电网有限责任公司广州供电局 | Prefabricated calandria and processing method thereof |
| 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 |
| CN112886524A (en) * | 2021-01-13 | 2021-06-01 | 上海电力设计院有限公司 | Built-in bolt type prefabricated calandria |
| CN113089725A (en) * | 2021-04-28 | 2021-07-09 | 宝业湖北建工集团有限公司 | Building structure assembly type construction method |
| CN113309140A (en) * | 2021-04-13 | 2021-08-27 | 金华电力设计院有限公司 | Prefabricated assembly type cable duct bank and construction method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110924564B (en) * | 2019-11-20 | 2021-02-23 | 中国十七冶集团有限公司 | Electrical pipeline pre-embedding system in secondary structure and implementation method |
| CN110829342A (en) * | 2019-11-29 | 2020-02-21 | 国网上海市电力公司 | Groove type prefabricated assembly type cable duct bank unit and method |
| CN112018708A (en) * | 2020-08-06 | 2020-12-01 | 广东电网有限责任公司广州供电局 | Prefabricated calandria and processing method thereof |
| 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 |
| CN112886524A (en) * | 2021-01-13 | 2021-06-01 | 上海电力设计院有限公司 | Built-in bolt type prefabricated calandria |
| CN113309140A (en) * | 2021-04-13 | 2021-08-27 | 金华电力设计院有限公司 | Prefabricated assembly type cable duct bank and construction method thereof |
| CN113089725A (en) * | 2021-04-28 | 2021-07-09 | 宝业湖北建工集团有限公司 | Building structure assembly type construction method |
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