CN104300438B - Method for laying large cable on small tray of overhead cable bridge - Google Patents
Method for laying large cable on small tray of overhead cable bridge Download PDFInfo
- Publication number
- CN104300438B CN104300438B CN201410490843.4A CN201410490843A CN104300438B CN 104300438 B CN104300438 B CN 104300438B CN 201410490843 A CN201410490843 A CN 201410490843A CN 104300438 B CN104300438 B CN 104300438B
- Authority
- CN
- China
- Prior art keywords
- cable
- pulley
- overhead
- angle
- bridge
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000007514 turning Methods 0.000 claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 230000009194 climbing Effects 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 5
- 238000010276 construction Methods 0.000 abstract description 21
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 4
- 230000002153 concerted effect Effects 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Abstract
The invention relates to a method for laying a large cable on a small tray of an overhead cable bridge. The method includes the following steps that (1) preparation is made before laying is conducted; (2) the cable enters an overhead window through a cable climb roll frame; (3) the cable achieves steering through a deflecting pulley; (4) the cable penetrates through a short pulley; (5) the cable bypasses the deflecting pulley and achieves steering; (6) the cable makes a turn by penetrating through a pulley row; (7) the cable penetrates through a forward and reverse pulley and climbs a slope; (8) an internal angle horizontal frame is additionally arranged at the 90-degree horizontal turning position of the narrow overhead cable bridge, and a set of temporary resultant force stay wires is additionally arranged on the external angle resultant force side of the overhead bridge; (9) the cable penetrates through the deflecting pulley and achieves steering. The method for laying the large cable on the small tray of the overhead cable bridge is reasonable in design, high in pertinence and capable of conducting construction according to the basic requirements of the regulations and the standards. By the adoption of the method, the construction quality of the cable can be guaranteed, the construction progress can be accelerated, and the construction work can be finished perfectly.
Description
Technical field
The present invention relates to cable laying technical field, especially a kind of little pallet in overhead cable bridge lays big cable
Method.
Background technology
Allow parameter request by power cable " design discipline ", " control of acceptance ", " operating standard " and producer, applied with any
Equipment, method, lays cable laying operation power cable on position and will meet following condition any：1st, the cable having laid will be protected
The external and internal compositionses of card cable are without any damage.2nd, in laid processes, any structure of cable must not be beyond permission stress for cable
Condition.3rd, crosslinked cable, in laid processes, should ensure that the minimum bending radius R 15d (the d- outside diameter of cable) of cable.4th, cable
In laid processes, should ensure that the lateral pressure that side voltage (p side) the ＜ producer suffered by cable allows.5th, power cable layer is whole
After knot, cable, on static position, due to the deadweight of cable, should not be acted on by any power again.
As shown in the above, cable laying requires extremely strictly, to requirements such as cable itself and construction environments
All higher, therefore on specific position, cabling is highly difficult, such as：35kv power cable (ZRYJY-35/26-3*300) is applied
It is located on existing overpass interlayer pallet just extremely difficult, existing cable pallet 0.2m*0.5m, disc layer spacing 400～450mm,
Transverse bracket L75*7, and the external diameter=122mm of ZRYJY-35/26-3*300 cross-linking flame-retardant power cable (the double sheath of three cores), cable
Deadweight=21.4kg/m.Therefore Regulations can not be met using following conventional construction method to require at all：1st, cable transmission
Machine applies method：Because cable overpass top tray spacing is too narrow little, conveyer is not placed into, and institute is inadvisable in this way.2nd, manpower applies
Manage：Firstly, since double sheathed cable is conducted oneself with dignity too heavy (21.4kg/m), narrow on overpass, people not to stand it is impossible to apply
Work.Secondly, even being unfolded out cable on the ground with manpower, due to the closing of crane span structure both sides diagonal brace ferrum, cable also cannot fall
Enter in overpass pallet.Finally, upper and lower clear spacing b=80 of cable tray transverse bracket～100mm, outside diameter of cable d=122mm, electricity
Cable enters not going.
In sum, conventional construction method can not meet the requirement laying big cable on the little pallet of overhead cable bridge, because
This needs to design a kind of special construction scheme and special laying apparatu is constructed come the basic demand to meet Regulations,
The construction quality both having ensured cable can be reached, and satisfactorily completed the purpose of construction working.
Content of the invention
It is an object of the invention to provide a kind of reasonable in design, with strong points, can apply on the little pallet of overhead cable bridge
If the method for big cable.
The purpose of the present invention is realized by following technological means：
The method of big cable is laid on a kind of little pallet in overhead cable bridge it is characterised in that：Comprise the following steps：
(1). the preparation before laying：Using power set be 3T traction twist mill, manpower unfold Φ=12.5mm steel wire
Restrict as pull rope, by steel wire rope and cable connection；
(2). at the overhead window that pallet layer is specified on ground to overpass, rolling frame climbed by setting cable to cable, and cable passes through electricity
Cable is climbed rolling frame and is entered overhead window；
(3). two vertical plus horizontal major diameter angle pulleies, the radius R=of this angle pulley are set at overhead window
1400～1600mm, cable is realized turning to by angle pulley；
(4). in tray slot, straightway puts a short pulley every 3～4m, and cable passes through from short pulley；
(5). in the vertical 90 ° of turnings of tray slot, upper and lower each angle pulley fixing a radius R=1600mm, cable
Bypass angle pulley to realize turning to；
(6). at horizontal 90 ° (45 ° * 2) turnings of tray slot, place 45 ° of * 2 sliding row of a R=1400～1600mm, electricity
Cable passes through sliding row to realize turning；
. at tray slot climbing, at upper and lower turning point, each place one just, back skating wheel, cable pass through just, back skating wheel
Realize climbing；
(8). at narrow 90 ° of flat banks of overpass, increase interior angle level frame, side increases with joint efforts at overpass exterior angle
One group of bracing wire of temporarily making a concerted effort；
(9). the angle pulley of one group of R=1600mm is respectively set in upper and lower 90 ° of corners of vertical shaft, and cable passes through to be realized turning
To；
If (10). run into above-mentioned steps (3)-working environment identical situation (9), processed according to above step, directly
Complete to cable laying.
And, (7) step installs multiple intermediate pulley on described tray slot just, between back skating wheel, and cable is from middle sliding
Wheel on through.
And, the height h=9m, width b=900 of the (8) described narrow overpass of step.
And, coefficient of friction u1=0.08～0.12 of whole pulleys；R=1.4～the 1.6m of 90 ° of angle pulleies；Step
(6) 90 described in ° turn to the friction multiplier coefficient u2=0.12, R=1.4～1.6m of sliding row.
Advantages of the present invention and good effect are：
1st, the difficulty of construction of this engineering is sizable, first has to all levels to former overpass using this construction method
The requirement that vertical 90 ° of turnings and vertical shaft turning carry out meeting R >=15d is transformed.Before laying, be to cable from ground
Guide 10 meters of eminences drilling overpass windows into, and two 90 ° of continuous mistake (is vertical, a level) is turned and rationally disposed (together
When to be limited by former pallet interlamellar spacing is narrow).Will to the passage of every cabling and 90 ° of corners of all of horizontal vertical and
Slope angle carries out rational laying apparatu process up and down.This method is passed through calculating and is chosen the introducing of cable and the reasonable position of traction end
Put, make lay environment residing for every cable lay embodiment, join a whole set of satisfactory laying apparatu.Therefore,
The construction under complex situations can be completed using this method, ensure excellent construction quality, improve efficiency of construction (this engineering
Pure workmen 25 lays the double sheath of L=300m cable * 2 axle ZRYJY-35/26-3*300 for each person daily), achieve good
Construction prestige.
2nd, the present invention is a kind of method laying big cable on little pallet in overhead cable bridge, and this method is reasonable in design, pin
Strong to property, can be constructed according to the basic demand of Regulations, both can guarantee that construction quality, the quickening of cable using this method
Construction speed, can satisfactorily complete construction working again.
Brief description
Fig. 1 is the artwork of cable crane span structure from ground；
Fig. 2 is that under cable level from crane span structure, vertical shaft lead-in cable ditch lays artwork；
Fig. 3 is that cable crosses vertical run artwork from level；
Fig. 4 is that cable is climbed on crane span structure and laid artwork.
Specific embodiment
Describe embodiments of the invention below in conjunction with the accompanying drawings in detail；It should be noted that the present embodiment is narrative, no
It is determinate it is impossible to protection scope of the present invention is limited with this.
A kind of method laying big cable on little pallet in overhead cable bridge, comprises the following steps：
(1). the preparation before laying：Using power set be 3T traction twist mill 4, manpower unfold Φ=12.5mm steel
Cord is pull rope, by steel wire rope and cable connection；
(2). at cable specifies the overhead window of pallet layer from ground to overpass 3, rolling frame climbed by setting cable, and cable 2 passes through
Cable is climbed rolling frame and is entered overhead window；
(3). two vertical plus horizontal major diameter angle pulleies 1, the radius R=of this angle pulley are set at overhead window
1400～1600mm, cable is realized turning to by angle pulley；
(4). in tray slot, straightway puts a short pulley 6 every 3～4m, and cable passes through from short pulley；
(5). in the vertical 90 ° of turnings of tray slot, upper and lower each angle pulley 5 fixing a radius R=1600mm, cable
Bypass angle pulley to realize turning to；
(6). at horizontal 90 ° (45 ° * 2) turnings of tray slot, place 45 ° of * 2 sliding row of a R=1400～1600mm, electricity
Cable passes through sliding row to realize turning；
. at tray slot climbing, at upper and lower turning point, each place one just, back skating wheel 8 and 7, cable pass through just, fall
Climbing realized by pulley, and such as distance is longer, can install multiple intermediate pulley, cable is therefrom on tray slot just, between back skating wheel
Between pass through on pulley；
(8). at narrow 90 ° of flat banks of overpass (referring to height h=9m, the overpass of width b=900), increase interior
Angle level frame, at overpass exterior angle, side increases by one group of bracing wire of temporarily making a concerted effort with joint efforts, is produced to interior angle due to trailing cable in order to balance
Raw horizontal resultant is protecting overpass；
(9). the angle pulley of one group of R=1600mm is respectively set in upper and lower 90 ° of corners of vertical shaft, and cable passes through；
If (10). run into above-mentioned steps (3)-working environment identical situation (9), processed according to above step, directly
Complete to cable laying.
Coefficient of friction u1=0.08～0.12 of the whole new pulley being related in above-mentioned steps；The R=of 90 ° of angle pulleies
1.4～1.6m；Step (6) described in the sliding row of 90 ° of steerings friction multiplier coefficient u2=0.12, R=1.4～1.6m.
After the inventive method construction, survey cable pulling power and conclusion：
In order to whether the pull strength that the design and calculating that confirm us are put is rationally correct.In actual laying, we are in P10
Point hangs up draw-bar donamometer, and band table has drawn 2 meters.P ' 10-1=1220kgf from the point of view of the reading table.It is tow start impulsive force,
During band table draws 2 meters, the reading P10-1=1060-1100kgf of indicator.
Confirmed by example test：
1. this arrangement and method for construction and its to lay preparation be correct.
2. this section of cable maximum drawbar pull Pm=1191kgf≤3150kgf.
3. the requirement of this section of cable maximum lateral pressure S9=455.7kg/m ＜ 500kg/m.
4. this section of cable is always ensured that radius of curvature R >=1400～1600 in work progress.
5. this section of cable, after laying, is checked and accepted excellent by Party A.
Claims (4)
1. the method for big cable is laid on a kind of little pallet in overhead cable bridge it is characterised in that：Comprise the following steps：
(1). the preparation before laying：Using power set be 3T traction twist mill, manpower unfolding Φ=12.5mm steel wire rope be
Pull rope, by steel wire rope and cable connection；
(2). at the overhead window that pallet layer is specified on ground to overpass, rolling frame climbed by setting cable to cable, and cable is climbed by cable
Rolling frame enters overhead window；
(3). two angle pulleies are set at overhead window, each angle pulley is vertical plus horizontal major diameter angle pulley,
Radius R=1400～the 1600mm of this angle pulley, cable is realized turning to by angle pulley；
(4). in tray slot, straightway puts a short pulley every 3～4m, and cable passes through from short pulley；
(5). in the vertical 90 ° of turnings of tray slot, upper and lower each angle pulley fixing a radius R=1600mm, cable bypasses
Angle pulley is realized turning to；
(6). at horizontal 90 ° (45 ° * 2) turnings of tray slot, place 45 ° of * 2 sliding row of a R=1400～1600mm, cable is worn
Cross sliding row to realize turning；
. at the upper and lower turning point at tray slot climbing, each place one just, back skating wheel, cable pass through just, back skating wheel realizes
Climbing；
(8). at narrow 90 ° of flat banks of overpass, increase interior angle level frame, side increases by one group with joint efforts at overpass exterior angle
Bracing wire with joint efforts temporarily；
(9). the angle pulley of one group of R=1600mm is respectively set in upper and lower 90 ° of corners of vertical shaft, and cable passes through to be realized turning to；
If (10). run into above-mentioned steps (3)-working environment identical situation (9), processed according to above step, Zhi Dao electricity
Cable lays and completes.
2. the method for big cable is laid on a kind of little pallet in overhead cable bridge according to claim 1 it is characterised in that：
(7) step installs multiple intermediate pulley on described tray slot just, between back skating wheel, and cable passes through from intermediate pulley.
3. the method for big cable is laid on a kind of little pallet in overhead cable bridge according to claim 1 it is characterised in that：
The height h=9m, width b=900mm of the (8) described narrow overpass of step.
4. the method for big cable is laid on a kind of little pallet in overhead cable bridge according to claim 1 it is characterised in that：
All coefficient of friction u1=0.08～0.12 of pulley；R=1.4～the 1.6m of 90 ° of angle pulleies；Step (6) described in 90 °
Turn to the friction multiplier coefficient u2=0.12, R=1.4～1.6m of sliding row.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410490843.4A CN104300438B (en) | 2014-09-23 | 2014-09-23 | Method for laying large cable on small tray of overhead cable bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410490843.4A CN104300438B (en) | 2014-09-23 | 2014-09-23 | Method for laying large cable on small tray of overhead cable bridge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104300438A CN104300438A (en) | 2015-01-21 |
| CN104300438B true CN104300438B (en) | 2017-02-08 |
Family
ID=52320070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410490843.4A Active CN104300438B (en) | 2014-09-23 | 2014-09-23 | Method for laying large cable on small tray of overhead cable bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104300438B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105896398B (en) * | 2016-05-18 | 2018-06-19 | 中国十九冶集团有限公司 | A kind of electric cable with large cross-section laying method |
| CN109347027B (en) * | 2018-10-26 | 2023-05-30 | 上海水业设计工程有限公司 | Method for passing cable through fireproof door in comprehensive pipe rack |
| CN110838695B (en) * | 2019-11-18 | 2022-07-12 | 中国建筑第八工程局有限公司 | Adjustable combined corner pulley device and adjusting method |
| CN111711131A (en) * | 2020-03-13 | 2020-09-25 | 五冶集团上海有限公司 | Cable guiding device in bridge and cable laying method |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4221365A (en) * | 1979-02-23 | 1980-09-09 | Pilgrim Technical Products Ltd. | Adjustable cable draw mechanism |
| US6612516B1 (en) * | 1991-01-16 | 2003-09-02 | H. Norman Clarkson | Method and apparatus for cable dispensing and placement |
| CN101001007A (en) * | 2006-12-25 | 2007-07-18 | 山东铝业工程有限公司 | Mechanical laying method for overlength large section cable |
| CN2932778Y (en) * | 2006-08-16 | 2007-08-08 | 江南造船(集团)有限责任公司 | Cable laying device |
| CN201663387U (en) * | 2009-11-12 | 2010-12-01 | 芜湖新兴铸管有限责任公司 | Large cable laying device |
| CN102856841A (en) * | 2012-10-11 | 2013-01-02 | 山东铝业工程有限公司 | Mechanical laying method for large-section overhead cable |
| CN103069676A (en) * | 2010-06-09 | 2013-04-24 | 泰斯美克股份有限公司 | Balancing and synchronizing device for machines for laying cables |
| CN103138207A (en) * | 2013-03-15 | 2013-06-05 | 辽宁省电力有限公司辽阳供电公司 | Connection row pulley for large-section cable paying off |
| CN203151054U (en) * | 2013-03-12 | 2013-08-21 | 中国铁建电气化局集团第五工程有限公司 | Corner support for cable laying |
| CN203151006U (en) * | 2013-03-15 | 2013-08-21 | 辽宁省电力有限公司辽阳供电公司 | Pulley connected in row for paying off large cross section cables |
| CN203445539U (en) * | 2013-08-30 | 2014-02-19 | 国家电网公司 | Line laying corner pulley rack |
| CN203456805U (en) * | 2013-09-25 | 2014-02-26 | 中国化学工程第六建设有限公司 | Large cross-section cable mechanization laying device |
| CN103633583A (en) * | 2013-11-20 | 2014-03-12 | 国家电网公司 | Cable off-bridge guiding method based on combined type cable guiding cage |
| CN203617624U (en) * | 2013-12-26 | 2014-05-28 | 国家电网公司 | Cable well protection device |
-
2014
- 2014-09-23 CN CN201410490843.4A patent/CN104300438B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4221365A (en) * | 1979-02-23 | 1980-09-09 | Pilgrim Technical Products Ltd. | Adjustable cable draw mechanism |
| US6612516B1 (en) * | 1991-01-16 | 2003-09-02 | H. Norman Clarkson | Method and apparatus for cable dispensing and placement |
| CN2932778Y (en) * | 2006-08-16 | 2007-08-08 | 江南造船(集团)有限责任公司 | Cable laying device |
| CN101001007A (en) * | 2006-12-25 | 2007-07-18 | 山东铝业工程有限公司 | Mechanical laying method for overlength large section cable |
| CN201663387U (en) * | 2009-11-12 | 2010-12-01 | 芜湖新兴铸管有限责任公司 | Large cable laying device |
| CN103069676A (en) * | 2010-06-09 | 2013-04-24 | 泰斯美克股份有限公司 | Balancing and synchronizing device for machines for laying cables |
| CN102856841A (en) * | 2012-10-11 | 2013-01-02 | 山东铝业工程有限公司 | Mechanical laying method for large-section overhead cable |
| CN203151054U (en) * | 2013-03-12 | 2013-08-21 | 中国铁建电气化局集团第五工程有限公司 | Corner support for cable laying |
| CN103138207A (en) * | 2013-03-15 | 2013-06-05 | 辽宁省电力有限公司辽阳供电公司 | Connection row pulley for large-section cable paying off |
| CN203151006U (en) * | 2013-03-15 | 2013-08-21 | 辽宁省电力有限公司辽阳供电公司 | Pulley connected in row for paying off large cross section cables |
| CN203445539U (en) * | 2013-08-30 | 2014-02-19 | 国家电网公司 | Line laying corner pulley rack |
| CN203456805U (en) * | 2013-09-25 | 2014-02-26 | 中国化学工程第六建设有限公司 | Large cross-section cable mechanization laying device |
| CN103633583A (en) * | 2013-11-20 | 2014-03-12 | 国家电网公司 | Cable off-bridge guiding method based on combined type cable guiding cage |
| CN203617624U (en) * | 2013-12-26 | 2014-05-28 | 国家电网公司 | Cable well protection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104300438A (en) | 2015-01-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104300438B (en) | Method for laying large cable on small tray of overhead cable bridge | |
| CN100440660C (en) | Mechanical laying method for overlength large section cable | |
| CN102290742B (en) | Tension stringing construction technology | |
| CN106099768A (en) | Outdoor complicated piping lane cable laying of bridge frame method | |
| CN106284083A (en) | Pushing tow climbs shifting formula cable crane arch bridge hanging method | |
| CN207409988U (en) | A kind of municipal works intert cable special stand | |
| CN107359550B (en) | A kind of big cable of converter oxygen gun main motor binds laying method on the way | |
| CN102593759B (en) | One-pulling-two expansion and construction process of large-section lead | |
| CN104158112A (en) | Multi-purpose pedaled flying vehicle | |
| CN104682271A (en) | Construction method of flexible metal sheath insulation cable | |
| CN106786146B (en) | Tri- identical tower window list back transmission line compact linear towers of 500kV enter equipotential operational method | |
| CN202872267U (en) | Cable laying machine | |
| CN202534991U (en) | Universal balance board for cable laying | |
| CN113675787A (en) | Method and system for simulating superconducting cable laying test | |
| KR20140073736A (en) | Round sling, and a method for manufacturing the same | |
| CN105957605B (en) | Traveling cable for lift and fixing device of cable | |
| CN208548694U (en) | The system of power station lifting equipment lightning protection day network arrangements | |
| CN206516407U (en) | Cable | |
| CN110492391A (en) | Jacking type full protection crossing frame and its building method | |
| CN207637528U (en) | A kind of interim aerial cable of construction | |
| CN108682498A (en) | A kind of Novel compressive network cable | |
| CN210246156U (en) | Online prosthetic devices that appears of snakeskin pipe | |
| CN202772534U (en) | Motor-driven cable laying device for submarine cable | |
| DE202010017212U1 (en) | Pipe for laying or pulling in three-phase cable cores | |
| CN210608304U (en) | Power communication cable line high altitude construction device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |