CN109510153A - 110KV cable duct original position supportive structure - Google Patents
110KV cable duct original position supportive structure Download PDFInfo
- Publication number
- CN109510153A CN109510153A CN201811436132.3A CN201811436132A CN109510153A CN 109510153 A CN109510153 A CN 109510153A CN 201811436132 A CN201811436132 A CN 201811436132A CN 109510153 A CN109510153 A CN 109510153A
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- China
- Prior art keywords
- cable duct
- original position
- cable
- supportive structure
- steel plate
- 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.)
- Pending
Links
- 230000003319 supportive effect Effects 0.000 title claims abstract description 25
- 239000004567 concrete Substances 0.000 claims abstract description 27
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 19
- 239000010959 steel Substances 0.000 claims abstract description 19
- 230000005611 electricity Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 22
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 238000011065 in-situ storage Methods 0.000 description 8
- 238000009412 basement excavation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 6
- 239000002689 soil Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012360 testing method Methods 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
- 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
-
- 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
- H02G9/025—Coverings therefor, e.g. tile
Abstract
The present invention relates to the technical fields of cable duct rest protection; disclose 110KV cable duct original position supportive structure, including for rest cable trench floor steel plate, positioned at cable duct two sides linking beam consistent with cable duct extending direction and being used to support steel plate, be used to support the concrete support plate of linking beam and reinforced concrete barricade for being encapsulated to cable duct two sides；110KV cable duct provided by the invention original position supportive structure, the beneficial effect that there is construction synergy, reduce construction interference, energy conservation and environmental protection.
Description
Technical field
The present invention relates to the technical fields of cable duct rest protection, especially 110KV cable duct original position supportive structure.
Background technique
Since reform and opening-up, China's rapid economic development, urban land is more and more crowded, therefore underground is greatly developed in city
Space is to alleviate ground hustle traffic and business activity.However because underground utilities complexity is various, Deep Foundation Pit excavation in underground is made
At inconvenience, especially high-tension cable, change move it is expensive, it is long in time limit, influence extensively factors to be waited all to be unfavorable for construction progress.
Therefore new demand, new technology, new process are proposed to the protection of high-tension cable ditch.Find a kind of underground of reduction significantly
Construction cost, duration reduce because the structure of the influence to citizen of constructing protected to high-tension cable ditch is very must
It wants.
Summary of the invention
The purpose of the present invention is to provide 110KV cable duct original position supportive structures, it is intended to which solution lacks one in the prior art
The problem of kind cable duct that security risk is low and cable protection effect is good protects structure.
The invention is realized in this way 110KV cable duct original position supportive structure, including the steel for rest cable trench floor
Plate, positioned at the consistent with the cable duct extending direction of the cable duct two sides and be used to support the linking beam of steel plate, for branch
Support the concrete support plate of the linking beam and the reinforced concrete barricade for being encapsulated to cable duct two sides.
Further, it is welded with multiple first convex blocks above the steel plate, is provided with below the reinforced concrete barricade
Downward opening first pit, multiple first convex blocks are respectively embedded into first on the reinforced concrete barricade of cable duct two sides
In pit, after in the first pit on the reinforced concrete barricade that multiple first convex blocks are respectively embedded into cable duct two sides,
Fill concrete in first pit is so that first convex block is fixed with the reinforced concrete barricade.
Further, along direction from top to bottom, the width of first convex block is gradually become smaller.
Further, multiple second convex blocks are welded with below the steel plate, the linking beam is provided with multiple opening courts
On second dimple, multiple second convex blocks are respectively embedded into multiple second dimples, when multiple second convex blocks point
It is not embedded in multiple second dimples, fill concrete in the second dimple is so that second convex block and the linking beam
It is fixed.
Further, along direction from top to bottom, the width of second convex block is become larger.
Further, the steel plate thickness is 1.5mm.
Further, first of concrete support uses C30 concrete.
Compared with prior art, 110KV cable duct provided by the invention original position supportive structure, has the advantages that
(1), construction synergy
Using supportive structure in situ, without abolishing pipe trench side wall, by the way that reinforced concrete barricade 3 and limitation are arranged on the outside of pipe trench
The measures such as site operation equipment operation range, it is ensured that the safety of pipe trench；Meanwhile maintenance condition can be provided for pipe trench, greatly
It shortens the construction period.
(2), construction interference is reduced
Complicated road occupying construction formality can be removed from using supportive structure in situ, greatly reduce the influence of Construction on Environment.
(3), energy conservation and environmental protection
Using supportive structure in situ, without abolishing pipe trench side wall, abolished and cable duct detour ditch because having reduced or remitted pipe trench side wall
The project amount that slot excavates reduces the influence to stratum, while playing environmental-protection function to the soil body and underground water；Reduce artificial and construction
The investment of equipment, constructing operation program, which becomes, to be simplified, and expendable circulation material is less.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of 110KV cable duct provided in an embodiment of the present invention original position supportive structure.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The same or similar label correspond to the same or similar components in the attached drawing of the present embodiment；In description of the invention
In, it is to be understood that if there is the orientation or positional relationship of the instructions such as term " on ", "lower", "left", "right" for based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore describe the use of positional relationship in attached drawing
Language only for illustration, should not be understood as the limitation to this patent, for the ordinary skill in the art, can be with
The concrete meaning of above-mentioned term is understood as the case may be.
Realization of the invention is described in detail below in conjunction with specific embodiment.
Shown in referring to Fig.1, preferred embodiment is provided for the present invention.
110KV cable duct original position supportive structure, including for rest cable trench floor steel plate 4, be located at cable duct two sides
Linking beam 5 consistent with cable duct extending direction and being used to support steel plate 4, be used to support linking beam 5 concrete support plate 2 and
Reinforced concrete barricade 3 for being encapsulated to cable duct two sides.
The 110KV cable duct original position supportive structure of above-mentioned offer, has the advantages that
(1), construction synergy
Using supportive structure in situ, without abolishing pipe trench side wall, by the way that reinforced concrete barricade 3 and limitation are arranged on the outside of pipe trench
The measures such as site operation equipment operation range, it is ensured that the safety of pipe trench；Meanwhile maintenance condition can be provided for pipe trench, greatly
It shortens the construction period.
(2), construction interference is reduced
Complicated road occupying construction formality can be removed from using supportive structure in situ, greatly reduce the influence of Construction on Environment.
(3), energy conservation and environmental protection
Using supportive structure in situ, without abolishing pipe trench side wall, abolished and cable duct detour ditch because having reduced or remitted pipe trench side wall
The project amount that slot excavates reduces the influence to stratum, while playing environmental-protection function to the soil body and underground water；Reduce artificial and construction
The investment of equipment, constructing operation program, which becomes, to be simplified, and expendable circulation material is less.
Specifically, the top of steel plate 4 is welded with multiple first convex blocks, and the lower section of reinforced concrete barricade 3 is provided with opening down
The first pit, multiple first convex blocks are respectively embedded into the first pit on the reinforced concrete barricade 3 of cable duct two sides, when multiple
After one convex block is respectively embedded into the first pit on the reinforced concrete barricade 3 of cable duct two sides Nei, in the first pit fill concrete with
Keep the first convex block and reinforced concrete barricade 3 fixed；In this way, keep the first convex block and reinforced concrete barricade 3 fixed by fill concrete, Gu
Fixed secured, fixed effect is good.
Preferably, along direction from top to bottom, the width of the first convex block is gradually become smaller；In this way, further enhancing
The fixed effect of one convex block and reinforced concrete barricade 3 effectively prevents the first convex block and is detached from reinforced concrete barricade 3.
Furthermore the lower section of steel plate 4 is welded with multiple second convex blocks, and it is recessed that linking beam 5 is provided with multiple opening up second
Hole, multiple second convex blocks are respectively embedded into multiple second dimples, when multiple second convex blocks are respectively embedded into multiple second dimples, the
Fill concrete in two pits is so that the second convex block and linking beam 5 are fixed；In this way, making the second convex block and company by fill concrete
Binder 5 is fixed, fixation, and fixed effect is good.
Preferably, along direction from top to bottom, the width of the second convex block is become larger；In this way, further enhancing
The fixed effect of one convex block and reinforced concrete barricade 3 effectively prevents the second convex block and is detached from linking beam 5.
Preferably, steel plate 4 is with a thickness of 1.5mm.
Preferably, first of concrete support uses C30 concrete.
It is carried out specifically by taking the rest protection project of No. 9 fields Xian Jing of Shenzhen Metro station foundation pit 110KV cable duct as an example below
It is bright:
The field the Xian Jing erect-position of Shenzhen 9 arranged along scape Tian Lucheng North and South direction in the intersection of scape Tian Luyu Lianhua Road, with
Line No.2 of Shenzhen Subway cross change and ride, station set 3 entrances, 2 groups of wind pavilion groups.The station road range Nei Yanjingtian east side and station
Longitudinal parallel lay-up has the comprehensive ditch of the cable of a 1.4 × 1.85m, inside there is 20 10KV cables, 2 times 110KV cable (scape iron wires
And few scape line) and 2 blank pipes, 12 communication system of power grids optical cables.2 times 110KV cables that wherein the subway second phase is moved back to newly-increased 2 groups straight
Pass joint, 110KV scape iron wire #1 insulating joint are located within the scope of excavation of foundation pit；Lianhua Road north side has 20 times 10KV cables in subway
Second phase changes the cutover in cable duct when moving, and cable intermediate joint is respectively positioned on excavation of foundation pit range.Lianhua Road southern side is applied across station
The comprehensive ditch of cable equipped with a 1.2m × 1.2m, inside there is 13 times 10KV cables, and station the North has 3 times 10KV cable pipe layings
Across No. 2 air duct foundation pits to traffic surveillance and control center.
Jing Tianzhan foundation pit 110KV cable duct design section is 1.4m × 1.85m and 10KV cable duct 1.4m × 0.35m, away from
Eastern half range diaphram wall 1.43m.Through field measurement, cable channel cover plate wide 2.40m, outer profile size 3.46m × 1.55m, away from
Eastern half range diaphram wall 0.23m.
The design of Jing Tianzhan cable original uses Bailey beam original position suspension protection, but considers Bailey beam pendant cables security risk
Height, and to strip cable duct exposes cable, because subway work is long in time limit, exposure easily causes to damage cable to cable for a long time
It is bad.Therefore former design is changed, in situ suspend in midair is changed to rest in situ, adds reinforcing bar in cable duct two sides on the basis of reservation cable duct structure
Concrete pack and add 300mm armoured concrete slab and I steel composite rest in cable duct bottom.
Cable pipe trench standard paragraphs, it is concordant with cable tube trench floor bottom surface that first of concrete supports back of coming of age to be adjusted downward to, in pipe
Using fashioned iron+reinforced concrete as rest platform below ditch, pipe trench outside carries out encapsulating protection using reinforced concrete barricade 3.First
Concrete support is 0.8m (width) × 1m (height), and together, intermediate fashioned iron temporary support spacing 0.5m is together by longitudinal center spacing 6m.
Within the scope of connector well, the more common section of cable trench depth is deep, under the premise of guaranteeing that crown beam top surface absolute altitude is constant, first
Concrete support in road continues to sink down into cable duct connector shaft bottom board bottom face, and crown beam section is increased.
Specific construction process are as follows: test section is chosen in construction of guide wall, cable tube bottom of trench reinforcing → construction of diaphragm wall is completed →, point
Section excavates pipe trench soil at both sides → cable duct two sides armored concrete encapsulating → excavation remainder earthwork to pipe trench bottom → excavation first
Hole jacking construction transversal I 22a fashioned iron → pour stringer and hat is drawn in the support of road concrete and the stringer earthwork → first of concrete Construction of Supporting →
The I22a fashioned iron at 1.5m → welded steel fabric below kelly-up soil to pipe trench bottom and pipe trench bottom under beam → excavation section by section pipe trench → pre-buried
Grouting Pipe pours the entire supportive structure construction of rest platform → completion.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (7)
1.110KV cable duct original position supportive structure, which is characterized in that including for rest cable trench floor steel plate, be located at institute
It states the consistent with the cable duct extending direction of cable duct two sides and is used to support the linking beam of steel plate, is used to support described link
The concrete support plate of beam and reinforced concrete barricade for being encapsulated to cable duct two sides.
2. 110KV cable duct as described in claim 1 original position supportive structure, which is characterized in that weld the top of the steel plate
There are multiple first convex blocks, downward opening first pit, multiple first convex blocks are provided with below the reinforced concrete barricade
It is respectively embedded into the first pit on the reinforced concrete barricade of cable duct two sides, when multiple first convex blocks are respectively embedded into electricity
After in the first pit on the reinforced concrete barricade of cable ditch two sides, fill concrete in first pit is so that described first
Convex block is fixed with the reinforced concrete barricade.
3. 110KV cable duct as claimed in claim 2 original position supportive structure, which is characterized in that along direction from top to bottom,
The width of first convex block gradually becomes smaller.
4. 110KV cable duct as described in claim 1 original position supportive structure, which is characterized in that weld the lower section of the steel plate
There are multiple second convex blocks, the linking beam is provided with multiple opening up second dimples, and multiple second convex block difference are embedding
Enter in multiple second dimples, when multiple second convex blocks are respectively embedded into multiple second dimples, described second is recessed
Fill concrete is so that second convex block is fixed with the linking beam in cheating.
5. 110KV cable duct as claimed in claim 4 original position supportive structure, which is characterized in that along direction from top to bottom,
The width of second convex block becomes larger.
6. the 110KV cable duct original position supportive structure as described in claim 1-5 any one, which is characterized in that the steel plate
With a thickness of 1.5mm.
7. the 110KV cable duct original position supportive structure as described in claim 1-5 any one, which is characterized in that described first
Concrete support in road uses C30 concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811436132.3A CN109510153A (en) | 2018-11-28 | 2018-11-28 | 110KV cable duct original position supportive structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811436132.3A CN109510153A (en) | 2018-11-28 | 2018-11-28 | 110KV cable duct original position supportive structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109510153A true CN109510153A (en) | 2019-03-22 |
Family
ID=65751035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811436132.3A Pending CN109510153A (en) | 2018-11-28 | 2018-11-28 | 110KV cable duct original position supportive structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109510153A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110700273A (en) * | 2019-11-08 | 2020-01-17 | 中国铁路设计集团有限公司 | In-situ protection method for side-by-side masonry pipe trench crossing foundation pit |
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| US20180044907A1 (en) * | 2016-08-12 | 2018-02-15 | Wuhan Zhihe Geotechnical Engineering Co., Ltd | Inverse construction method for deep, large and long pit assembling structure of suspension-type envelope enclosure |
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-
2018
- 2018-11-28 CN CN201811436132.3A patent/CN109510153A/en active Pending
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| US20180044907A1 (en) * | 2016-08-12 | 2018-02-15 | Wuhan Zhihe Geotechnical Engineering Co., Ltd | Inverse construction method for deep, large and long pit assembling structure of suspension-type envelope enclosure |
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| Title |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110700273A (en) * | 2019-11-08 | 2020-01-17 | 中国铁路设计集团有限公司 | In-situ protection method for side-by-side masonry pipe trench crossing foundation pit |
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