CN207260619U - Elevated bridge safe construction safeguard structure under high-voltage line - Google Patents
Elevated bridge safe construction safeguard structure under high-voltage line Download PDFInfo
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- CN207260619U CN207260619U CN201720955166.8U CN201720955166U CN207260619U CN 207260619 U CN207260619 U CN 207260619U CN 201720955166 U CN201720955166 U CN 201720955166U CN 207260619 U CN207260619 U CN 207260619U
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Abstract
The utility model discloses a kind of safe construction safeguard structure of elevated bridge under high-voltage line.Safeguard structure includes the protection box car or protection network for being arranged at construction operation area under high-voltage line；High-voltage line is when within bridge beam body height 10m, using protection box car；When high-voltage line is more than bridge beam body height 10m, using protection network under line；When within the lateral separation 10m of high-voltage line bridge beam body side, using line side protection network.The utility model safeguard structure can be assembled outside high-voltage line, can effectively solve the problems, such as that setting height(from bottom) is insufficient under high-voltage line, be moved by track and draw-gear.By measuring the altitude data provided, the upright bar of different length is processed, quick regulation of the box car height under different parts, different height operating mode can be solved；The insulated target that top is laid with, by testing inspection, can efficiently cut down box car internal electric intensity from the minimum reductions of more than 4KV/m to 0.02KV/m, meet safe construction demand.
Description
Technical field
The utility model belongs to construction safety technical field, especially belongs to the Safety construction technology neck under high voltage environment
Domain, the safe construction safeguard structure and its application process of overhead bridge pier more particularly under high-voltage line.
Background technology
Job execution is carried out below overhead high-voltage wire, when such as carrying out overhead bridge pier construction construction, it is necessary to pre-set peace
Full isolation facility.
In general, the pile foundation carried out under high-voltage line, cushion cap, pier shaft and bridge superstructure construction, pacify supertension line
The complete mainly pile foundation drill hole of drilling machine for causing potential impact and steel reinforcement cage, pier, beam-slab template lifting, and concrete pouring etc. are made
The construction operation of industry, especially big machinery and concrete pump truck under high-voltage line easily triggers super-high voltage to discharge.In respective regions
Transmission line of electricity cannot move in a short time change under the conditions of, to ensure safe construction and honouring an agreement on time, for invading its safe distance and
The position outside discharge range carries out technical research again, it is necessary to takes certain safety measure and special bridge construction work
Skill is to ensure that construction is normally carried out.
The content of the invention
The utility model insufficient safe construction protection for disclosing overhead bridge pier under a kind of high-voltage line according to prior art
Structure.Problem to be solved in the utility model is to provide a kind of safeguard structure that can ensure safe construction under super-high voltage.
The utility model is achieved through the following technical solutions：
Elevated bridge safe construction safeguard structure under high-voltage line, it is characterised in that：The safeguard structure includes being arranged at height
The protection box car or protection network of construction operation area under crimping；Include the bridge pile foundation of construction in construction operation area, hold
Platform, pier shaft and bridge structure；
When high-voltage line is being built up within axle casing beam body height 10m, using protection box car safeguard structure；
When high-voltage line is building up more than axle casing beam body height 10m, using protection network safeguard structure under line；
When high-voltage line is being built up within the lateral separation 10m of axle casing beam body side, using line side protection network safeguard structure.
The protection box car move towards to arrange along elevated bridge, including box car side wall positioned at bridge both sides and on bridge
It is made of below side, high-voltage line the box car ceiling of both sides box car side wall support；Ceiling high point and the distance of high-voltage line in 220KV and
It is not less than 4.5m under following high-voltage line, is not less than 6m under more than 220KV high-voltage lines.
Pulley is arranged at the box car side wall bottom of the both sides and edge is arranged in the U-shaped slide tethered sliding on ground, box car side
Ground can be anchored in by oblique pull wirerope on the outside of wall；Ceiling is equipped with insulated target.
The box car side wall is bolted by the column of type steel skeleton structure, highly can highly be adjusted with beam body.Adjust
Section mode can be realized by increasing and decreasing column quantity or replacing different length column, can also be adjusted using liftable column.
The both sides box car side wall is both provided with traction lifting lug and is used for cable car hawser tethered sliding.Traction lifting lug uses 25mm
Steel plate, middle perforate, is welded on the column of box car side wall；Traction uses hoist engine, and institute's construction bridges are fixed in its position
The other end；The steel wire rope end head of hoist engine is fixed on traction lifting lug with buckle, starting hoist engine makes box car quickly move.
The ceiling lower part is provided with alarming in short range of electric power device.Provided by concerned countries, human-body safety electric field strength is no more than
4000V/m, nearly electric alarms based on pattern recognition are arranged to alarm when electric field strength reaches 4000V/m, prompt construction personnel withdraw to
Safety zone.
Protection network moves towards arrangement along elevated bridge under line described in the utility model, by limit for height rope, Dense mesh screen and supported rod erecting
Composition, supported rod erecting be located at bridge both sides, and limit for height rope and Dense mesh screen are supported by supported rod erecting, limit for height rope arranged for interval, high point and
The distance of high-voltage line is not less than 4.5m under 220KV and following high-voltage line, is not less than 6m under more than 220KV high-voltage lines.
Ground is anchored in by oblique pull wirerope on the outside of the supported rod erecting.
Line side protection network described in the utility model is continuously arranged in bridge side along elevated bridge trend, by nylon wire and branch
Upright bar composition is supportted, nylon net height is higher than the distance for building up axle casing beam body, any point and high-voltage line in 220KV and following high pressure
It is not less than 4.5m under line, is not less than 6m under more than 220KV high-voltage lines.
The utility model helpfulness, the utility model safeguard structure advantage are：1st, this structure carries out group outside high-voltage line
Dress, can effectively solve the problems, such as that setting height(from bottom) is insufficient under high-voltage line；2nd, quickly moved by track and draw-gear, can
The time is saved, the installation and disengaging for making the structure are not take up the duration；3rd, this structure is all connected by screw bolts, and scene can be quick group
Dress, and by measure provide altitude data, the upright bar of different length is pre-machined, with solve box car height different parts,
Quick regulation under different height operating mode；4th, the insulated target that top is laid with, by testing inspection, can efficiently cut down electricity inside box car
Field intensity meets safe construction demand from the minimum reductions of more than 4KV/m to 0.02KV/m.
Brief description of the drawings
Fig. 1 is the utility model protection box car safeguard structure schematic diagram；
Fig. 2 is the utility model protection box car protection fixed structure schematic diagram；
Fig. 3 is protection network safeguard structure schematic diagram under the utility model line；
Fig. 4 is the utility model line side protection network safeguard structure schematic diagram；
Fig. 5 is the utility model line side protection network safeguard structure schematic side view.
In figure, 1 is pulley, and 2 be U-shaped slide, and 3 be bolt, and 4 be alarming in short range of electric power device, and 5 be insulated target, and 6 be ceiling, and 7 be anti-
Protect box car and fix wirerope, 8 be traction lifting lug, and 9 be high pressure corridor, and 10 be limit for height rope, and 11 be Dense mesh screen, and 12 be column, and 13 be Buddhist nun
Imperial net.
Embodiment
Embodiment, which is to the utility model, to be further illustrated to the utility model with reference to embodiment
The further explanation of principle, does not limit the utility model in any way, does not have with the same or like technology of the utility model
Beyond the scope of the utility model protection.
With reference to Fig. 1 to Fig. 4.
Elevated bridge safe construction safeguard structure under high-voltage line, safeguard structure include being arranged at work zone under high-voltage line
The protection box car or protection network in domain；Include bridge pile foundation, cushion cap, pier shaft and the bridge knot of construction in construction operation area
Structure；
When high-voltage line is being built up within axle casing beam body height 10m, using protection box car safeguard structure；
When high-voltage line is building up more than axle casing beam body height 10m, using protection network safeguard structure under line；
When high-voltage line is being built up within the lateral separation 10m of axle casing beam body side, using line side protection network safeguard structure.
Protection box car move towards to arrange along elevated bridge, including box car side wall positioned at bridge both sides and above bridge,
It is made of below high-voltage line the box car ceiling of both sides box car side wall support；Ceiling high point and the distance of high-voltage line 220KV and with
It is not less than 4.5m under lower high-voltage line, is not less than 6m under more than 220KV high-voltage lines.
There is pulley in the box car side wall bottom of both sides and along being arranged in the U-shaped slide tethered sliding on ground, outside box car side wall
Side can be anchored in ground by oblique pull wirerope；Ceiling is equipped with insulated target.Box car side wall is passed through by the column of type steel skeleton structure
It is bolted, highly can be highly adjusted with beam body.Box car side wall is both provided with traction lifting lug and is used for cable car hawser tethered sliding.Top
Canopy lower part is provided with alarming in short range of electric power device.
Using during protection network, protection network moves towards arrangement along elevated bridge, by limit for height rope, Dense mesh screen and supported rod erecting group under line
Into supported rod erecting is located at bridge both sides, and limit for height rope and Dense mesh screen are supported by supported rod erecting, limit for height rope arranged for interval, high point and height
The distance of crimping is not less than 4.5m under 220KV and following high-voltage line, is not less than 6m under more than 220KV high-voltage lines.
Ground is anchored in by oblique pull wirerope on the outside of supported rod erecting.
During using line side protection network, line side protection network is continuously arranged in bridge side along elevated bridge trend, by nylon wire
Formed with supported rod erecting, nylon net height, which is higher than, builds up the distance of axle casing beam body, any point and high-voltage line in 220KV and following
It is not less than 4.5m under high-voltage line, is not less than 6m under more than 220KV high-voltage lines.
Case history
Wuhan Rail Transit line first stage of the project civil engineering part is divided into 3 BT bid sections, is originally designated as three bid sections, is overhead
Section.There are the 110KV high-voltage lines from north orientation south above BT3 bid sections section 32# piers~34# piers；Have above section 15# piers~21# piers
Two high pressure corridor lines, are 220KV high-voltage lines respectively；There are two above section 7#~9# piers, 36#~42# piers from north orientation south
High pressure corridor line, is respectively 220KV or 110KV high-voltage lines.
According to live factual survey data, high-voltage line is apart from rail apex distance height in 0m~11.42m.
It is mainly pile foundation, cushion cap, pier shaft and bridge superstructure construction under this engineering high-voltage line, wherein to super-high voltage
Mainly pile foundation drill hole of drilling machine and the steel reinforcement cage of potential impact are caused safely in road, and pier, beam-slab template lifting, concrete pouring etc. are made
The construction operation of industry, especially big machinery and concrete pump truck under high-voltage line easily triggers super-high voltage to discharge.Due to the region
Transmission line of electricity cannot move in a short time to be changed, and to ensure normal construction and honouring an agreement on time, is removed and is entered in super-high voltage discharge range
Part cannot construct outer, for invading its safe distance and the position outside discharge range carries out technical research, take
The utility model safeguard structure is to ensure that construction is normally carried out.
Constructing under this engineering high-voltage line mainly has pile foundation drill hole of drilling machine and steel reinforcement cage, and pier, beam-slab template lifting, concrete fill
The mechanical works such as note, in order to effectively prevent machinery, personnel from getting an electric shock, and the electric discharge and tripping of prevention high-voltage line, project management department is right
This has made intensive studies, and takes different prevention policies from the relative position of high-voltage line according to beam body, and draws following knot
By：High-voltage line is within 10m above beam body, using rail-mounted protection box car；High-voltage line is adopted beyond 10m above beam body
With protection network under line；High-voltage line is beyond the 10m of beam body side, using line side protection network.
As shown in Figure 1, high-voltage line within 10m above beam body, using rail-mounted protection canopy car under line, is filled by drawing
It is quick mobile to put realization, to accelerate to protect the placement of box car and withdraw from speed.Rail-mounted protection box car is in traction to designated position
The drawing anchor set afterwards using both sides is fixed, and comprehensive grounding is carried out after the completion of fixation.Rail-mounted protection canopy car owner will
Play isolation, protect and prevent maloperation.
As shown in Fig. 2, high-voltage line beyond 10m above beam body, is protected, protection network is by limit for height using protection network under line
Rope, Dense mesh screen and supported rod erecting composition, by forming a close-network above construction beam body, construction personnel and machinery are being closed
Operation off the net, effectively prevents maloperation, avoids personnel from getting an electric shock and causes high-voltage line to discharge.
As shown in figure 3, high-voltage line beyond the 10m of beam body side, is protected, protection network is by nylon wire using line side protection network
Formed with supported rod erecting, by forming a close-network in construction beam body side, construction personnel is in the operation of close-network side, effectively
Prevent maloperation, avoid personnel from getting an electric shock and cause high-voltage line to discharge.
Claims (8)
1. elevated bridge safe construction safeguard structure under high-voltage line, it is characterised in that：The safeguard structure includes being arranged at high pressure
The protection box car or protection network of construction operation area under line；Bridge pile foundation including construction in construction operation area, cushion cap,
Pier shaft and bridge structure；
When high-voltage line is being built up within axle casing beam body height 10m, using protection box car safeguard structure；
Or, when high-voltage line is building up more than axle casing beam body height 10m, using protection network safeguard structure under line；
Or, when high-voltage line is being built up within the lateral separation 10m of axle casing beam body side, using line side protection network safeguard structure；
The protection box car move towards to arrange along elevated bridge, including box car side wall positioned at bridge both sides and above bridge,
It is made of below high-voltage line the box car ceiling of both sides box car side wall support；Ceiling high point and the distance of high-voltage line 220KV and with
It is not less than 4.5m under lower high-voltage line, is not less than 6m under more than 220KV high-voltage lines.
2. elevated bridge safe construction safeguard structure under high-voltage line according to claim 1, it is characterised in that：The both sides
Box car side wall bottom have pulley and along the U-shaped slide tethered sliding on ground is arranged in, can pass through oblique pull on the outside of box car side wall
Wirerope is anchored in ground；Ceiling is equipped with insulated target.
3. elevated bridge safe construction safeguard structure under high-voltage line according to claim 2, it is characterised in that：The box car
Side wall is bolted by the column of type steel skeleton structure, highly can highly be adjusted with beam body.
4. elevated bridge safe construction safeguard structure under high-voltage line according to claim 3, it is characterised in that：The both sides
Box car side wall is both provided with traction lifting lug and is used for cable car hawser tethered sliding.
5. elevated bridge safe construction safeguard structure under high-voltage line according to claim 3, it is characterised in that：The ceiling
Lower part is provided with alarming in short range of electric power device.
6. elevated bridge safe construction safeguard structure under high-voltage line according to claim 1, it is characterised in that：Under the line
Protection network moves towards arrangement along elevated bridge, is made of limit for height rope, Dense mesh screen and supported rod erecting, and supported rod erecting is located at bridge both sides,
Limit for height rope and Dense mesh screen are supported by supported rod erecting, and the distance of limit for height rope arranged for interval, high point and high-voltage line is in 220KV and following height
It is not less than 4.5m under crimping, is not less than 6m under more than 220KV high-voltage lines.
7. elevated bridge safe construction safeguard structure under high-voltage line according to claim 6, it is characterised in that：The support
Ground is anchored in by oblique pull wirerope on the outside of upright bar.
8. elevated bridge safe construction safeguard structure under high-voltage line according to claim 1, it is characterised in that：The line side
Protection network is continuously arranged in bridge side along elevated bridge trend, is made of nylon wire and supported rod erecting, nylon net height is higher than
Build up the distance of axle casing beam body, any point and high-voltage line under 220KV and following high-voltage line not less than 4.5m, 220KV with
It is not less than 6m under upper high-voltage line.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720955166.8U CN207260619U (en) | 2017-08-01 | 2017-08-01 | Elevated bridge safe construction safeguard structure under high-voltage line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720955166.8U CN207260619U (en) | 2017-08-01 | 2017-08-01 | Elevated bridge safe construction safeguard structure under high-voltage line |
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| CN207260619U true CN207260619U (en) | 2018-04-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107227858A (en) * | 2017-08-01 | 2017-10-03 | 中国水利水电第七工程局成都水电建设工程有限公司 | Overhead bridge pier safe construction safeguard structure under high-voltage line |
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2017
- 2017-08-01 CN CN201720955166.8U patent/CN207260619U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107227858A (en) * | 2017-08-01 | 2017-10-03 | 中国水利水电第七工程局成都水电建设工程有限公司 | Overhead bridge pier safe construction safeguard structure under high-voltage line |
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