CN205753309U - Prefabricated cable duct - Google Patents
Prefabricated cable duct Download PDFInfo
- Publication number
- CN205753309U CN205753309U CN201620548144.5U CN201620548144U CN205753309U CN 205753309 U CN205753309 U CN 205753309U CN 201620548144 U CN201620548144 U CN 201620548144U CN 205753309 U CN205753309 U CN 205753309U
- Authority
- CN
- China
- Prior art keywords
- cable duct
- concrete
- ditch
- cable
- prefabricated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000004567 concrete Substances 0.000 claims abstract description 34
- 238000005266 casting Methods 0.000 claims abstract description 7
- 239000002689 soil Substances 0.000 claims description 3
- 230000015271 coagulation Effects 0.000 claims 1
- 238000005345 coagulation Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 19
- 239000011449 brick Substances 0.000 description 18
- 239000000463 material Substances 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 239000011083 cement mortar Substances 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 2
- 239000002440 industrial waste Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004899 motility Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- 241000037237 Peliosanthes gracilipes Species 0.000 description 1
- 230000000703 anti-shock Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 239000011456 concrete brick Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Landscapes
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
This utility model provides a kind of prefabricated cable duct, it is characterized in that: two vertical sections are that the concrete prefabricated element of L-type is staggered relatively, connecting with casting concrete structure between the relative end face on the base of two components, said two component and a casting concrete structure form a U-shaped cable slot body；More than one U-shaped cable slot body is spliced to form cable duct.This utility model short construction period, assembly type, province's expense.
Description
Technical field
This utility model belongs to a kind of civic building engineering accessory, particularly relates to a kind of cable duct.
Background technology
Cable duct refers to be excavated by design requirement and built by laying bricks or stones, the sidewall weld load slotted-angle shelving of ditch on request ground connection, on
Cover is with the underdrain of cover plate, it is simply that cable duct.Its purposes is exactly the underground designated lane of cabling.It is extensively applied
In building, electricity substation, power plant, municipal construction.
Traditional cable ditch makes form at present three kinds: brick cable duct, cast-in-place concrete cable duct, U-shaped pre-fabricated electric cables
Ditch.
Brick cable duct:
Such as Fig. 1, material commonly used by brick setting cable duct 10 autoclaved lime-sand brick, concrete brick, a shale brick etc., and strength grade >=
MU10, general requirement uses M15 masonry of cement mortar.The thickness of furrow bank is according to ditch depth, in conjunction with generally 240mm after Force Calculation
And 370mm.Arranging the thick concrete breast beam 11 of 2 road 120mm on furrow bank, when current supply cable support is installed, fixed expansion bolt 12 is used.
Bottom of trench has guiding gutter 13, ditch top to have light-weight cover board 14.
Advantage:
The most easily gather materials on the spot.Brick setting can be the materials such as shale brick, colliery wastes brick and flyash brick, and wide material sources are sold
Valency is cheap；
2. brick block masonry has good fire resistance and preferable durability；
3. easy construction, strong adaptability.Template and special construction equipment is need not when masonry is built by laying bricks or stones.At cold district,
Winter can also build by laying bricks or stones by freezing process, is not required to special Insulation.
4. brick setting is load-bearing material, also possesses certain heat preservation and insulation simultaneously.
Inferior position:
1. the intensity of masonry is the most relatively low, thus the sectional dimension of component is relatively big, and material usage is many；
2. masonry build substantially manual mode by laying bricks or stones, the construction amount of labour is big；
3. tension and the shearing strength of masonry are the lowest, thus anti-seismic performance is poor, by a definite limitation on using；
4. some areas are still using clay-brickmaking, cause land resource to waste, and too much take farmland, and impact agricultural is raw
Produce.
Cast-in-place concrete cable duct:
Such as Fig. 2, cast-in-place concrete cable duct 20 material is plain concrete, and strength grade is typically no less than C20.Ditch wall thickness
According to ditch depth, typically take 200mm～250mm in conjunction with Force Calculation and detailing requiments.When electrically installing, cable bearer is directly with swollen
Swollen bolt 22 is fixed on furrow bank.Bottom of trench has guiding gutter 23, ditch top to have light-weight cover board 24.
Advantage:
The most easy to use, support template and reinforcing bar with the use of, it can be made to have good plasticity, physical dimension,
Wall thickness and meet and have unrivaled advantage in O. gracilipes requirement；
2. price is relatively low, abundant raw materials, big and medium-sized cities commercialization；
3. high-strength durable.Concrete has good durability, contrasts masonry structure, and concrete structure stability is good, anti-
Shock stability is good；
4. performance is easily adjusted.Along with the development of concrete technology, multiple intensity can be manufactured or possess property, as
Water-proof concretes etc., conveniently meet the needs of various Structural Engineering；
5. concrete can utilize the industrial waste such as slag, flyash, draws materials extensively, utilizes industrial waste former as producing
Material also helps environmental protection.
Inferior position:
First, construction period and curing cycle are long, and cold district winter construction is limited；
2. site construction technology requires higher, and easily the most up to standard because of construction technology or operation the most strictly causes component to have one
A little quality problems；
3. casting and compacting of concrete and maintenance quality are difficult to ensure that, thus easily occur crack to affect perception etc. after longtime running.
U-shaped pre-fabricated electric cables ditch:
Such as Fig. 3, starting a kind of assembly type cable slot version occurred in recent years, its construction features is that cable duct 3 breaks
Face is formed in one formula precast concrete, between every section of preform length 0.8～1.5m, prefabrication, and job site is spliced.
Furrow bank has prepared screw-bolt hole 32.Bottom of trench has reserved rhone 33, and there is light-weight cover board 34 on ditch top.
Advantage:
1. industrialization, mass production, save material, reduces construction cost.
2. process standard, component complete set, advantageously ensure that the quality of component.
3. reduce the weather restriction to construction, improve work efficiency, speed up the work.
4. improve Contraction in Site condition, reduce labor strength.
5. reduce or reduce the noise of job site, dust, the waste water pollution level to environment.
6. promote that industry restructuring and building industrialization produce.
Inferior position:
1. size is fixed, and need to be respectively directed to every kind of channel dimensions exploitation particular mold, and cost is difficult to reduce；
2. U-type groove is bulky, transport inconvenience, increases construction cost further；
3. ditch intersegmental employing pointing with cement mortar is to thermal expansion and the poor resistance of ground inhomogeneous deformation.
4. pumping equipment the most still uses cast-in-place ditch section, arranges catch pit, it is impossible to realize zero template construction.
Utility model content
This utility model provides a kind of prefabricated cable duct, its objective is to solve the shortcoming that prior art exists, gram
Take the traditional brick and construction period of concrete cast-in-situ cable duct existence and length curing cycle and easily because construction technology does not reaches
Mark or operation the most strictly cause component to there are some quality problems, in order to overcome U-shaped pre-fabricated electric cables ditch to there is R&D costs height, fortune
Defeated costly, the shortcoming such as Installation Modes and operational reliability difference, and the one provided can comply with present short construction period, assembling
Type, the novel product of province's expense.
This utility model solves its technical problem and be the technical scheme is that
A kind of prefabricated cable duct, it is characterised in that: two vertical sections are that the concrete prefabricated element of L-type is put relatively
Putting, connect with casting concrete structure between the relative end face on the base of two components, said two component and one water
Build concrete body and form a U-shaped cable slot body；More than one U-shaped cable slot body is spliced to form cable duct.
Of the present utility model have the beneficial effect that
The cross section of two L-type Component compositions is adapted to different cable duct width, decreases the number of mould research and development
Amount；
Owing to L-type component volume is little, it is easier to arrangement when transport than U-shaped component and stacks, it is meant that bicycle delivery quantity
It is greatly promoted, effectively reduces cost of transportation；
L-type prefabricated components are lightweight, can complete, even in the case of condition deficiency with small-sized hanging equipment during handling
Can manually load and unload and installation in place, motility is greatly improved；
Seam crossing arranges water expandable waterstop, and while meeting cable duct waterproof requirement, ditch body stitching portion is reserved
Gap can double as using into expansion joint；
The raceway groove of L-type prefabricated component composition waters region after natively having a concrete due to centre, therefore can arrange flexibly
Drain pipe, it is not necessary to do traditional brick or cast-in-place concrete ditch section at a certain distance, more motility in terms of raceway groove draining, and
It is truly realized zero template construction, improves efficiency.
Accompanying drawing explanation
With embodiment, this utility model is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is brick cable duct structure chart；
Fig. 2 is cast-in-place concrete cable duct structure chart；
Fig. 3 is U-shaped pre-fabricated electric cables groove structure figure；
Fig. 4 is this utility model structure chart.
Detailed description of the invention
In order to be illustrated more clearly that the technical solution of the utility model, the accompanying drawing used required in describing will be made below
Introduce simply, it should be apparent that, the accompanying drawing in describing below is only embodiments more of the present utility model, for this area
From the point of view of those of ordinary skill, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The design of concrete prefabricated structure:
Bearing capacity calculation: cable furrow bank is cantilever member, cable duct both sides ground preloading grade presses 10kPa consideration, operculum colpi
Plate design live load 4kPa, the maximum cable load of that cable load provides according to electric specialty, corresponding channel dimensions considers.
Trench floor thickness and the same furrow bank of arrangement of reinforcement, do not play control action.
Normal applying working condition calculates: under crack based on the accurate permanent combination calculation cantilever slab of load and action of long-term load
Amount of deflection.Fracture width is pressed 0.2mm and is controlled, and amount of deflection limits C and considers according to L/100, i.e. under furrow bank top long term deep for 1.2m
Deformation values less than 24mm.
Lifting operating mode: based on the above arrangement of reinforcement value calculated, consider by 2 liftings, check single-unit build allowed by
Long length.
Detailing requiments: thickness of concrete cover, by the plate value in two (b) class environment, can meet cold and severe cold ground
The environment more than district's frost line contacted with water or the soil without erosion property of inclining.Code requirement is 25mm, owing to L-type component is that factory is pre-
System, compact-type is good, and quality is guaranteed, and concrete grade is higher, uses C35, and specification is allowed that protective layer thickness suitably reduces, taken
20mm。
Anti-floating calculates: defence water level considers according to-0.5m, owing to ditch body is relatively light, and may be because of under idle condition
Buoyancy force of underground water and produce floating, solution for trench floor arrange choose ear, utilize top earthing weight balancing water buoyancy.
Raceway groove is waterproof: raceway groove seam controls at 2mm, middle part filling water expandable waterstop, is fastened by bolts power, makes chance
Water expansion sealing strip and two lateral sulcus bodies fit tightly.Bottom ditch, post-cast strip is mixed extender with high one-level concrete and is watered and smash, construction joint
Not otherwise processed.
Raceway groove draining: burying Φ 40PVC pipe at along direction, post-cast strip underground every 2m, the water in raceway groove is managed by Φ 40PVC
Being aggregated in the Φ 100PVC pipe of ditch foot mat bottom, Φ 100PVC pipe is buried underground along ditch length direction is elongated, and connects every about 20m
Enter neighbouring inspection shaft.
Ditch section connects: with small-sized hanging device the most in place after, the adjustment of the power of the being fastened by bolts portion of running business into particular one, and be finally completed
Install.
Raceway groove intersect: cable duct intersect corner, use corner ditch section splice, thus be combined into cable duct L-shaped,
T-shaped, decussation.
Trench ends: use prefabricated shrouding, reserved bolt docking port, it is connected fixing with ditch body bolt.Can during distant view enlarging
Dismounting shrouding, cable duct is along terminal extension.
The concrete prefabricated element production method of L-type: L-type mould is kept flat operating board, cloth muscle, after will be numbered C35 and mix
Solidifying soil is poured in L-type mould, by vibration, placement, initial set, form removal, maintenance, thus is made.
As shown in Figure 4: the cross section of traditional cable ditch is a U-shaped cross section, this utility model product is that 2 vertical sections are
The concrete prefabricated element 1 of L-type, by staggered relatively for the concrete prefabricated element 1 of two L-types, pouring concrete behind middle gap
And generate and be formed for a casting concrete structure 2, the concrete prefabricated element 1 of two L-types and a casting concrete structure
Body 2 forms a U-shaped cable slot body 3.Again several sections of U-shaped cable slot body 3 splicings are formed for cable duct, adjacent U-shaped cable slot body 3
Connect with branch sleeve.
In this specification, each embodiment uses the mode gone forward one by one to describe, and what each embodiment stressed is and other
The difference of embodiment, between each embodiment, identical similar portion sees mutually.Upper to the disclosed embodiments
State bright, make professional and technical personnel in the field be capable of or use this utility model.Multiple amendment to these embodiments is right
Will be apparent from for those skilled in the art, generic principles defined herein can be without departing from this reality
In the case of novel spirit or scope, realize in other embodiments.Therefore, this utility model is not intended to be limited to this
These embodiments shown in literary composition, and it is to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (1)
- The most prefabricated cable duct, it is characterised in that: two vertical sections are that the concrete prefabricated element of L-type is staggered relatively, two Connecting with casting concrete structure between the relative end face on the base of individual component, said two component and one pour coagulation Soil structured body forms a U-shaped cable slot body；More than one U-shaped cable slot body is spliced to form cable duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620548144.5U CN205753309U (en) | 2016-06-07 | 2016-06-07 | Prefabricated cable duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620548144.5U CN205753309U (en) | 2016-06-07 | 2016-06-07 | Prefabricated cable duct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205753309U true CN205753309U (en) | 2016-11-30 |
Family
ID=57360037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620548144.5U Active CN205753309U (en) | 2016-06-07 | 2016-06-07 | Prefabricated cable duct |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205753309U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106498981A (en) * | 2016-12-06 | 2017-03-15 | 绍兴明煌建材科技有限公司 | A kind of brick type municipal administration comprehensive pipeline passage and its construction method |
| CN106759476A (en) * | 2016-12-06 | 2017-05-31 | 绍兴明煌建材科技有限公司 | A kind of assembled municipal administration comprehensive pipeline passage and its construction method |
-
2016
- 2016-06-07 CN CN201620548144.5U patent/CN205753309U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106498981A (en) * | 2016-12-06 | 2017-03-15 | 绍兴明煌建材科技有限公司 | A kind of brick type municipal administration comprehensive pipeline passage and its construction method |
| CN106759476A (en) * | 2016-12-06 | 2017-05-31 | 绍兴明煌建材科技有限公司 | A kind of assembled municipal administration comprehensive pipeline passage and its construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |