CN102979346A - Method for replacing 10kV multi-layered overhead line pole towers with steel pipe poles in situ - Google Patents
Method for replacing 10kV multi-layered overhead line pole towers with steel pipe poles in situ Download PDFInfo
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- CN102979346A CN102979346A CN2012105363483A CN201210536348A CN102979346A CN 102979346 A CN102979346 A CN 102979346A CN 2012105363483 A CN2012105363483 A CN 2012105363483A CN 201210536348 A CN201210536348 A CN 201210536348A CN 102979346 A CN102979346 A CN 102979346A
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Abstract
A method for replacing 10kV multi-layered overhead line pole towers with steel pipe poles in situ includes the following specific steps: cement pole towers are erected nearby an old pole tower; the spans between the old pole tower and the front and the rear pole towers are released; power transmission lines on the old pole tower are transferred onto the cement pole towers; the old pole tower is dismantled, and a pole pit is dug at the position of the old pole tower; a steel pipe pole foundation with a flange is fabricated in the pole pit and dried until the steel pipe pole foundation hardens; a steel pipe pole is connected with and erected by the flange to erect, and the power transmission lines on the cement pole towers are transferred onto the steel pipe pole; the cement pole towers are dismantled, and the pavement is restored even. Since the cement pole towers are erected to serve as media for transferring the power transmission lines, the steel pipe pole can be erected in situ, and moreover, as the steel pipe pole foundation is waited to become hard, power still can be supplied. After completion, the position of the a steel tower is not changed, consequently, the route of the power transmission lines cannot be changed to affect the attractive appearance or the power transmission lines do not need to be re-paid off to cause economic loss, and moreover, the current condition of an urban street cannot be changed to bring about disputes.
Description
Technical field
The present invention relates to a kind of 10kV multi-layer rack ceases to be busy line pole tower was to change the steel pipe pole method originally.
Background technology
Along with the development of economic construction, people constantly enlarge the demand of electricity, and the requirement of power supply reliability is also improved constantly.For satisfying people's demand, in the electric network reconstruction process, need to change old shaft tower.Because the cement shaft tower of the masthead force unbalances such as straight line difference bar needs in the opposite direction of masthead power backguy to be installed, it is attractive in appearance to have affected the city.Therefore, generally old cement shaft tower is replaced by the steel pipe pole that need not to install backguy in the bustling location in city.The method of changing steel pipe pole is: cross line direction or fair line road direction at old shaft tower are excavated the bar hole, in the bar hole, make the steel pipe pole basis with flange, after the airing seven days, steel pipe pole is connected with flange on the steel pipe pole basis, transmission line of electricity is moved on the steel pipe pole by old shaft tower.
The shortcoming of this method is: if 1 change shaft tower in the cross line direction, can change the position of shaft tower, the path of power line changes, and affect attractive in appearancely, and the path can cause required conductor length inadequate after elongated, and needs are unwrapping wire again, economic loss.If 2 at fair line road direction replacing shaft tower, change easily the avenue present situation, cause problems such as blocking the retail sales entrance, produce dispute with near resident.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of shaft tower position that do not change, and 10kV multi-layer rack ceases to be busy line pole tower original position attractive in appearance, that save is changed the steel pipe pole method.
The present invention is achieved in that
A kind of 10kV multi-layer rack ceases to be busy line pole tower original position is changed the steel pipe pole method, and its special character is that concrete steps are as follows:
1, near old shaft tower, sets up the cement shaft tower;
2, the span before and after will this old shaft tower between shaft tower discharges, and makes the corresponding power line of this old shaft tower elongated;
3, the power line on will this old shaft tower moves to the cement shaft tower;
4, remove old shaft tower, and excavate the bar hole in old shaft tower position;
5, making is with the steel pipe pole basis of flange in the bar hole, and airing is to steel pipe pole basis hardening;
6, set up steel pipe pole by the flange connection, and the power line on the cement shaft tower is moved on the steel pipe pole;
7, remove the cement shaft tower, recover evenness of road surface.
Discharge during described release span before and after length and the old shaft tower power line length between shaft tower and more than or equal to the anterior shaft tower of old shaft tower to the cement shaft tower line distance between the shaft tower of old shaft tower rear portion extremely.
Described cement shaft tower and old shaft tower are arranged along cross line direction or ordinate road direction.
When described old shaft tower was anti-swollen type shaft tower, described cement shaft tower had two, and laid respectively at old shaft tower left and right sides, to reduce the length that discharges span.
Described old shaft tower is during with unifurcate shaft tower, and described cement shaft tower has one, and when bifurcated deflection left side, described cement shaft tower is positioned at old shaft tower left side, and when bifurcated deflection right side, described cement shaft tower is positioned at old shaft tower right side, to reduce stress.
Described old shaft tower is during with the shaft tower of two bifurcateds, and described cement shaft tower has two, and lays respectively at old shaft tower left and right sides, to reduce the length that discharges span and to reduce stress.
The described airing time is seven days.
The invention has the beneficial effects as follows:
Owing to by setting up the cement shaft tower as the medium that power line shifts, can set up in situ steel pipe pole, and still can guarantee power supply when waiting for the hardening of steel pipe pole basis.Do not change the position of head tower after finishing, the attractive in appearance or unwrapping wire economic loss again of impact that neither can change because of the path of power line can not cause dispute because changing the avenue present situation yet.
Description of drawings
Fig. 1 is cement shaft tower set-up mode schematic diagram of the present invention (corresponding embodiment 1);
Fig. 2 is cement shaft tower set-up mode schematic diagram of the present invention (corresponding embodiment 2);
Fig. 3 is cement shaft tower set-up mode schematic diagram of the present invention (corresponding embodiment 3);
Fig. 4 is cement shaft tower set-up mode schematic diagram of the present invention (corresponding embodiment 4).
Among the figure: old shaft tower 1, cement shaft tower 2.
The specific embodiment
As shown in Figure 1, it is as follows that this 10kV multi-layer rack ceases to be busy line pole tower original position is changed the steel pipe pole method step:
1, sets up cement shaft tower 2 in old shaft tower 1 the place ahead.
2, the span between will this old shaft tower 1 front and back shaft tower discharges, make this old shaft tower 1 corresponding power line elongated, discharge during described release span power line length between length and old shaft tower 1 front and back shaft tower and more than or equal to old shaft tower 1 anterior shaft tower to cement shaft tower 2 to the line distance between old shaft tower 1 rear portion shaft tower.
3, the power line on will this old shaft tower 1 moves to cement shaft tower 2.
4, remove old shaft tower 1, and excavate the bar hole in old shaft tower 1 position.
5, make steel pipe pole basis with flange in bar hole, airing 7 days is to the basic hardening of steel pipe pole.
6, set up steel pipe pole by the flange connection, and the power line on the cement shaft tower 2 is moved on the steel pipe pole.
7, remove cement shaft tower 2, recover evenness of road surface.
Described old shaft tower 1 is anti-swollen type shaft tower, and described cement shaft tower 2 has two, and lays respectively at old shaft tower 1 left and right sides, the other the same as in Example 1.
Embodiment 3
Described old shaft tower 1 is with unifurcate shaft tower, and described cement shaft tower 2 has one, and when bifurcated deflection left side, described cement shaft tower 2 is positioned at old shaft tower 1 left side, and when bifurcated deflection right side, described cement shaft tower 2 is positioned at old shaft tower 1 right side.
Embodiment 4
Described old shaft tower 1 is the shaft tower with two bifurcateds, and described cement shaft tower 2 has two, and lays respectively at old shaft tower 1 left and right sides.
Claims (7)
1. a 10kV multi-layer rack ceases to be busy line pole tower original position is changed the steel pipe pole method, it is characterized in that concrete steps are as follows:
(1), near old shaft tower, sets up the cement shaft tower;
(2), the span before and after will this old shaft tower between shaft tower discharges;
(3), the power line on will this old shaft tower moves to the cement shaft tower;
(4), remove old shaft tower, and excavate the bar hole in old shaft tower position;
(5), in bar hole, make the steel pipe pole basis with flange, airing is to the basic hardening of steel pipe pole;
(6), connect by flange and to set up steel pipe pole, and the power line on the cement shaft tower is moved on the steel pipe pole;
(7), remove cement shaft tower, recovery evenness of road surface.
2. 10kV multi-layer rack ceases to be busy line pole tower original position according to claim 1 is changed the steel pipe pole method, it is characterized in that: discharge during described release span before and after length and the old shaft tower power line length between shaft tower and more than or equal to the anterior shaft tower of old shaft tower to the cement shaft tower line distance between the shaft tower of old shaft tower rear portion extremely.
3. 10kV multi-layer rack ceases to be busy line pole tower original position according to claim 1 is changed the steel pipe pole method, and it is characterized in that: described cement shaft tower and old shaft tower are arranged along cross line direction or ordinate road direction.
According to claim 1 or 3 described 10kV multi-layer rack ceases to be busy line pole tower original positions change the steel pipe pole methods, it is characterized in that: when described old shaft tower was anti-swollen type shaft tower, described cement shaft tower had two, and laid respectively at old shaft tower left and right sides.
According to claim 1 or 3 described 10kV multi-layer rack ceases to be busy line pole tower original positions change the steel pipe pole methods, it is characterized in that: described old shaft tower is for unifurcate shaft tower the time, described cement shaft tower has one, when bifurcated deflection left side, described cement shaft tower is positioned at old shaft tower left side, when bifurcated deflection right side, described cement shaft tower is positioned at old shaft tower right side.
According to claim 1 or 3 described 10kV multi-layer rack ceases to be busy line pole tower original positions change the steel pipe pole methods, it is characterized in that: described old shaft tower is for the shaft tower of two bifurcateds the time, and described cement shaft tower has two, and lays respectively at old shaft tower left and right sides.
7. 10kV multi-layer rack ceases to be busy line pole tower original position according to claim 1 is changed the steel pipe pole method, and it is characterized in that: the described airing time is seven days.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105363483A CN102979346A (en) | 2012-12-13 | 2012-12-13 | Method for replacing 10kV multi-layered overhead line pole towers with steel pipe poles in situ |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105363483A CN102979346A (en) | 2012-12-13 | 2012-12-13 | Method for replacing 10kV multi-layered overhead line pole towers with steel pipe poles in situ |
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| Publication Number | Publication Date |
|---|---|
| CN102979346A true CN102979346A (en) | 2013-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105363483A Pending CN102979346A (en) | 2012-12-13 | 2012-12-13 | Method for replacing 10kV multi-layered overhead line pole towers with steel pipe poles in situ |
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| CN (1) | CN102979346A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982073A (en) * | 2014-05-06 | 2014-08-13 | 国家电网公司 | Pipe tower removing method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1932768A (en) * | 1930-09-29 | 1933-10-31 | Frederick W Coffing | Method of and apparatus for line pole replacement |
| CN102061822A (en) * | 2010-11-18 | 2011-05-18 | 河南省电力公司南阳供电公司 | Temporary cross arm for replacing linear cement poles and application method thereof |
| CN102661057A (en) * | 2012-05-30 | 2012-09-12 | 衡水供电公司 | Power angle tower pull leg main material changing method and special main material clamp |
-
2012
- 2012-12-13 CN CN2012105363483A patent/CN102979346A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1932768A (en) * | 1930-09-29 | 1933-10-31 | Frederick W Coffing | Method of and apparatus for line pole replacement |
| CN102061822A (en) * | 2010-11-18 | 2011-05-18 | 河南省电力公司南阳供电公司 | Temporary cross arm for replacing linear cement poles and application method thereof |
| CN102661057A (en) * | 2012-05-30 | 2012-09-12 | 衡水供电公司 | Power angle tower pull leg main material changing method and special main material clamp |
Non-Patent Citations (1)
| Title |
|---|
| 庞九洋: "《怎样整修和更换电杆》", 31 May 1958, 人民邮电出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982073A (en) * | 2014-05-06 | 2014-08-13 | 国家电网公司 | Pipe tower removing method |
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Application publication date: 20130320 |