CN112302350A - Construction scheme of engineering helicopter in transportation aspect of high-voltage line tower - Google Patents
Construction scheme of engineering helicopter in transportation aspect of high-voltage line tower Download PDFInfo
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- CN112302350A CN112302350A CN201910680753.4A CN201910680753A CN112302350A CN 112302350 A CN112302350 A CN 112302350A CN 201910680753 A CN201910680753 A CN 201910680753A CN 112302350 A CN112302350 A CN 112302350A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C25/00—Cranes not provided for in groups B66C17/00 - B66C23/00
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Abstract
The invention provides a construction scheme of an engineering helicopter in the aspect of high-voltage line tower transportation, which comprises the following steps: construction preparation; assembling the hoisted tower sections; respectively installing a set of butt joint auxiliary system on the hoisted tower section and the positioned tower section; the outer sides of two adjacent horizontal limiting devices are connected with limiting ropes; the method comprises the following steps that a hanging device is used for hanging a hung tower section below the belly of the helicopter, and then the hung tower section is hoisted to be close to a tower section in place; the engineering helicopter adjusts the position of the hoisted tower section and falls to a certain height from the ground, and ground auxiliary personnel connect the control rope to the connecting plate; the engineering helicopter lifts the hoisted tower section to the position above the tower section, and finds the position center and hovers under the action of the butt joint auxiliary system; the ground auxiliary personnel tighten the four control ropes to enable four sides of the hoisted tower section and the positioning tower section to be aligned in parallel in the overlooking plane; the tower crane section smoothly slides into the installation position by means of the butt joint auxiliary system, the tower crane section is accurately in butt joint with the tower section in place, and finally the tower crane section is placed on a platform of the vertical limiting device.
Description
Technical Field
The invention belongs to the field of engineering construction. In particular to a construction scheme of an engineering helicopter in the aspect of transportation of a high-voltage line tower.
Background
With the large-scale construction of extra-high voltage transmission line engineering, the demand cannot be met by adopting a cableway transportation mode, the territory of China is wide, the transportation of a plurality of high-voltage line towers needs to pass through dense vegetation, river valleys, plateau deserts and mountains, a plurality of construction sites are located in mountainous areas, the difficulties caused by the territory environment can be overcome by adopting the engineering helicopter transportation, the engineering helicopter transportation becomes the mainstream, and therefore, the construction scheme of the engineering helicopter in the aspect of the high-voltage line tower transportation is developed.
With the large-scale construction of the ultra-high voltage transmission line engineering, the engineering helicopter becomes an important choice for solving the extreme construction problem of the mountain construction in the engineering. However, the usage cost of the helicopter, which is a core device for hoisting and tower assembling operation, is relatively high, and relates to hoisting of multiple crossed operation surfaces such as the helicopter, a ground material assembling yard, an operation tower position and the like, the operation mode of the helicopter must be reasonably planned, personnel and construction resources are effectively allocated, the efficiency of the helicopter is fully exerted, and the operation cost can be further reduced. The invention analyzes the hoisting operation cost of the helicopter and comprehensively optimizes the operation mode.
Disclosure of Invention
Aiming at the defects in the prior art, the construction scheme of the engineering helicopter in the aspect of high-voltage line tower transportation overcomes the transportation difficulty caused by regional environment, and the high-voltage line tower transportation is faster and more efficient.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a construction scheme of an engineering helicopter in the aspect of high-voltage line tower transportation comprises the following steps:
1) construction preparation, namely, carrying out sufficient construction preparation before formally carrying out the tower hoisting of the engineering helicopter, wherein the construction preparation comprises site arrangement, personnel coordination, communication guarantee, meteorological monitoring, iron tower protection and the like; in the process that the hoisting section of the iron tower is gradually hoisted from the horizontal position, the tower material at the root part of the hoisting section is greatly stressed, and the tower material at the root part is possibly abraded due to the fact that the hoisting section is driven by the engineering helicopter to slide on the ground; therefore, round timbers are bound by thin iron wires at the inner sides of the tower materials at the root parts of the hoisting sections, and extend out of the root parts of the tower materials, so that the tower materials can be prevented from being worn in the hoisting process; in addition, the auxiliary material is used for connecting the four main materials at the root of the hoisting section, so that the bearing capacity of the hoisting section is improved;
2) assembling the hoisted tower section in a ground assembly yard, and accurately measuring to ensure that the size of the connecting position of the hoisted tower section and the positioned tower section meets the installation requirement;
3) a set of butt joint auxiliary system is respectively arranged at the four connecting main materials of the hoisted tower section and the positioned tower section, so that the butt joint auxiliary system is ensured to be accurately and stably arranged;
4) a horizontal limiting rope is connected between the outer connecting rings of two adjacent horizontal limiting devices to provide a wider limiting range for the position of the hoisted tower section; the limiting rope can use a turn buckle, and a steel wire rope is connected between the limiting rope and the turn buckle as the limiting rope; the steel wire rope should be slightly loosened so as to prevent the main material of the iron tower from deforming to change the size;
5) the method comprises the following steps that a hanging device is used for hanging a hung tower section below the belly of the engineering helicopter, and then the hung tower section is hoisted to be close to a tower section in place; the hoisting process is stable and slow, and the hoisted tower section is prevented from sliding on the ground or colliding with the ground;
6) the engineering helicopter adjusts the direction of the hoisted tower section, slowly falls to a certain height from the ground, and ground auxiliary personnel quickly connect the control rope which passes through the waist ring of the vertical limiting device to the connecting plate of the horizontal limiting device; because the four corners of the iron tower are provided with the control ropes, four ground auxiliary personnel are required to be connected at the same time; in addition, in order to shorten the connection time, a connection hole is formed in the connection plate, an S-shaped hook is tied at the end of the control rope, and ground auxiliary personnel only need to hook the hook into the connection hole;
7) the engineering helicopter lifts the hoisted tower section to the position above the tower section, and the engineering helicopter finds the position center and hovers under the auxiliary action of the horizontal limiting device in the butt joint auxiliary system; the ascending process is slow, and the control rope is prevented from being wound with the iron tower;
8) the ground auxiliary personnel tighten the four control ropes to enable four sides of the hoisted tower section and the tower section in position to be aligned in parallel in a top plane, so that the situation that the hoisted tower section cannot be accurately positioned due to the fact that the second control rope is twisted at the vertical center of the hanger is avoided;
9) the engineering helicopter driver gradually reduces the hovering height, so that the hoisted tower section smoothly slides into the installation position under the guiding action of the guiding device in the butt joint auxiliary system, the hoisted tower section and the tower section in position are accurately butted in position, and finally the hoisted tower section is placed on a platform of the vertical limiting device;
10) the engineering helicopter flies away after loosening the connection with the hoisted tower section, constructors climb the tower and connect the tower section in place with the connecting angle steel by using bolts, thereby realizing the connection between the hoisted tower section and the tower section in place;
11) dismantling all devices of the butt joint auxiliary system so as to complete the engineering helicopter assembly of the hung tower section;
12) and (4) assembling the subsequent tower sections according to the steps, thereby completing the construction of the engineering helicopter assembly of the whole foundation iron tower.
Furthermore, the engineering helicopter is like a dragonfly, adopts a 6-blade rotor wing with the diameter of 21.95 meters, is used for hoisting external goods through a beam type fuselage, adopts a front three-point landing gear, and is provided with a tail pry at the tail end of a tail beam; the engineering helicopter can bear 200 tons at maximum.
Has the advantages that: the construction scheme of the engineering helicopter in the aspect of high-voltage line tower transportation overcomes the transportation difficulty caused by regional environment, and is quicker and more efficient than cableway transportation.
Drawings
Fig. 1 is a schematic diagram of a construction scheme of an engineering helicopter in the aspect of transportation of a high-voltage line tower.
Detailed Description
The invention is illustrated below with reference to specific examples. It will be understood by those skilled in the art that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention in any way.
A construction scheme of an engineering helicopter in the aspect of high-voltage line tower transportation comprises the following steps:
1) construction preparation, namely, carrying out sufficient construction preparation before formally carrying out the tower hoisting of the engineering helicopter, wherein the construction preparation comprises site arrangement, personnel coordination, communication guarantee, meteorological monitoring, iron tower protection and the like; in the process that the hoisting section of the iron tower is gradually hoisted from the horizontal position, the tower material at the root part of the hoisting section is greatly stressed, and the tower material at the root part is possibly abraded due to the fact that the hoisting section is driven by the engineering helicopter to slide on the ground; therefore, round timbers are bound by thin iron wires at the inner sides of the tower materials at the root parts of the hoisting sections, and extend out of the root parts of the tower materials, so that the tower materials can be prevented from being worn in the hoisting process. In addition, the auxiliary material is used for connecting the four main materials at the root of the hoisting section, so that the bearing capacity of the hoisting section is improved;
2) assembling the hoisted tower section in a ground assembly yard, and accurately measuring to ensure that the size of the connecting position of the hoisted tower section and the positioned tower section meets the installation requirement;
3) a set of butt joint auxiliary system is respectively arranged at the four connecting main materials of the hoisted tower section and the positioned tower section, so that the butt joint auxiliary system is ensured to be accurately and stably arranged;
4) a horizontal limiting rope is connected between the outer connecting rings of two adjacent horizontal limiting devices to provide a wider limiting range for the position of the hoisted tower section; the limiting rope can use a turn buckle, and a steel wire rope is connected between the limiting rope and the turn buckle as the limiting rope; the steel wire rope should be slightly loosened so as to prevent the main material of the iron tower from deforming to change the size;
5) the method comprises the following steps that a hanging device is used for hanging a hung tower section below the belly of the helicopter, and then the hung tower section is hoisted to be close to a tower section in place; the hoisting process is stable and slow, and the hoisted tower section is prevented from sliding on the ground or colliding with the ground;
6) the engineering helicopter adjusts the direction of the hoisted tower section, slowly falls to a certain height from the ground, and ground auxiliary personnel quickly connect the control rope which passes through the waist ring of the vertical limiting device to the connecting plate of the horizontal limiting device; because the four corners of the iron tower are provided with the control ropes, four ground auxiliary personnel are required to be connected at the same time; in addition, in order to shorten the connection time, a connection hole is formed in the connection plate, an S-shaped hook is tied at the end of the control rope, and ground auxiliary personnel only need to hook the hook into the connection hole;
7) the engineering helicopter lifts the hoisted tower section to the position above the tower section, and the engineering helicopter finds the position center and hovers under the auxiliary action of the horizontal limiting device in the butt joint auxiliary system; the ascending process is slow, and the control rope is prevented from being wound with the iron tower;
8) the ground auxiliary personnel tighten the four control ropes to enable four sides of the hoisted tower section and the tower section in position to be aligned in parallel in a top plane, so that the situation that the hoisted tower section cannot be accurately positioned due to the fact that the second control rope is twisted at the vertical center of the hanger is avoided;
9) the engineering helicopter driver gradually reduces the hovering height, so that the hoisted tower section smoothly slides into the installation position under the guiding action of the guiding device in the butt joint auxiliary system, the hoisted tower section and the tower section in position are accurately butted in position, and finally the hoisted tower section is placed on a platform of the vertical limiting device;
10) the engineering helicopter flies away after loosening the connection with the hoisted tower section, constructors climb the tower and connect the tower section in place with the connecting angle steel by using bolts, thereby realizing the connection between the hoisted tower section and the tower section in place;
11) dismantling all devices of the butt joint auxiliary system so as to complete the engineering helicopter assembly of the hung tower section;
12) and (4) assembling the subsequent tower sections according to the steps, thereby completing the construction of the engineering helicopter assembly of the whole foundation iron tower.
The engineering helicopter is similar to a dragonfly, adopts a 6-blade rotor wing with the diameter of 21.95 meters, is used for hoisting external goods through a beam type fuselage, adopts a front three-point landing gear, and is provided with a tail pry at the tail end of a tail beam.
Claims (2)
1. A construction scheme of an engineering helicopter in the aspect of high-voltage line tower transportation is characterized in that: the method comprises the following steps:
1) construction preparation, namely, carrying out sufficient construction preparation before formally carrying out the tower hoisting of the engineering helicopter, wherein the construction preparation comprises site arrangement, personnel coordination, communication guarantee, meteorological monitoring, iron tower protection and the like; in the process that the hoisting section of the iron tower is gradually hoisted from the horizontal position, the tower material at the root part of the hoisting section is greatly stressed, and the tower material at the root part is possibly abraded due to the fact that the hoisting section is driven by the engineering helicopter to slide on the ground; therefore, round timbers are bound by thin iron wires at the inner sides of the tower materials at the root parts of the hoisting sections, and extend out of the root parts of the tower materials, so that the tower materials can be prevented from being worn in the hoisting process; in addition, the auxiliary material is used for connecting the four main materials at the root of the hoisting section, so that the bearing capacity of the hoisting section is improved;
2) assembling the hoisted tower section in a ground assembly yard, and accurately measuring to ensure that the size of the connecting position of the hoisted tower section and the positioned tower section meets the installation requirement;
3) a set of butt joint auxiliary system is respectively arranged at the four connecting main materials of the hoisted tower section and the positioned tower section, so that the butt joint auxiliary system is ensured to be accurately and stably arranged;
4) a horizontal limiting rope is connected between the outer connecting rings of two adjacent horizontal limiting devices to provide a wider limiting range for the position of the hoisted tower section; the limiting rope can use a turn buckle, and a steel wire rope is connected between the limiting rope and the turn buckle as the limiting rope; the steel wire rope should be slightly loosened so as to prevent the main material of the iron tower from deforming to change the size;
5) the method comprises the following steps that a hanging device is used for hanging a hung tower section below the belly of the engineering helicopter, and then the hung tower section is hoisted to be close to a tower section in place; the hoisting process is stable and slow, and the hoisted tower section is prevented from sliding on the ground or colliding with the ground;
6) the engineering helicopter adjusts the direction of the hoisted tower section, slowly falls to a certain height from the ground, and ground auxiliary personnel quickly connect the control rope which passes through the waist ring of the vertical limiting device to the connecting plate of the horizontal limiting device; because the four corners of the iron tower are provided with the control ropes, four ground auxiliary personnel are required to be connected at the same time; in addition, in order to shorten the connection time, a connection hole is formed in the connection plate, an S-shaped hook is tied at the end of the control rope, and ground auxiliary personnel only need to hook the hook into the connection hole;
7) the engineering helicopter lifts the hoisted tower section to the position above the tower section, and the engineering helicopter finds the position center and hovers under the auxiliary action of the horizontal limiting device in the butt joint auxiliary system; the ascending process is slow, and the control rope is prevented from being wound with the iron tower;
8) the ground auxiliary personnel tighten the four control ropes to enable four sides of the hoisted tower section and the tower section in position to be aligned in parallel in a top plane, so that the situation that the hoisted tower section cannot be accurately positioned due to the fact that the second control rope is twisted at the vertical center of the hanger is avoided;
9) the engineering helicopter driver gradually reduces the hovering height, so that the hoisted tower section smoothly slides into the installation position under the guiding action of the guiding device in the butt joint auxiliary system, the hoisted tower section and the tower section in position are accurately butted in position, and finally the hoisted tower section is placed on a platform of the vertical limiting device;
10) the engineering helicopter flies away after loosening the connection with the hoisted tower section, constructors climb the tower and connect the tower section in place with the connecting angle steel by using bolts, thereby realizing the connection between the hoisted tower section and the tower section in place;
11) dismantling all devices of the butt joint auxiliary system so as to complete the engineering helicopter assembly of the hung tower section;
12) and (4) assembling the subsequent tower sections according to the steps, thereby completing the construction of the engineering helicopter assembly of the whole foundation iron tower.
2. The project helicopter of claim 1, wherein the project helicopter is like a dragonfly, and is provided with a 6-blade rotor with a diameter of 21.95 m, a beam body for lifting external goods, a front three-point landing gear, and a tail pry at the tail end of the tail beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910680753.4A CN112302350A (en) | 2019-07-26 | 2019-07-26 | Construction scheme of engineering helicopter in transportation aspect of high-voltage line tower |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910680753.4A CN112302350A (en) | 2019-07-26 | 2019-07-26 | Construction scheme of engineering helicopter in transportation aspect of high-voltage line tower |
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| CN112302350A true CN112302350A (en) | 2021-02-02 |
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| CN201910680753.4A Pending CN112302350A (en) | 2019-07-26 | 2019-07-26 | Construction scheme of engineering helicopter in transportation aspect of high-voltage line tower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114319992A (en) * | 2021-12-28 | 2022-04-12 | 国网天津市电力公司建设分公司 | Electric iron tower subsection assembling construction method adopting automatic butt joint device |
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| CN105464456A (en) * | 2015-12-30 | 2016-04-06 | 国家电网公司 | Method and lifting sling for assembling extra-high voltage transmission iron tower through helicopter |
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2019
- 2019-07-26 CN CN201910680753.4A patent/CN112302350A/en active Pending
Patent Citations (6)
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| JP2005139607A (en) * | 2003-11-04 | 2005-06-02 | Kansai Electric Power Co Inc:The | Steel tower assembling construction method by helicopter and work tool |
| AU2006203572A1 (en) * | 2005-08-12 | 2007-03-08 | Mack Innovations (Australia) Pty Ltd | Cable pulling apparatus for helicopters |
| CN101054114A (en) * | 2007-05-16 | 2007-10-17 | 陈复树 | Vehicle-ship carrying electric lifter |
| CN103031978A (en) * | 2012-12-12 | 2013-04-10 | 中国电力科学研究院 | Installation assisting system for erection of power transmission line iron tower and erection method for iron tower |
| CN105464456A (en) * | 2015-12-30 | 2016-04-06 | 国家电网公司 | Method and lifting sling for assembling extra-high voltage transmission iron tower through helicopter |
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Non-Patent Citations (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114319992A (en) * | 2021-12-28 | 2022-04-12 | 国网天津市电力公司建设分公司 | Electric iron tower subsection assembling construction method adopting automatic butt joint device |
| CN114319992B (en) * | 2021-12-28 | 2023-06-13 | 国网天津市电力公司建设分公司 | Electric iron tower sectional assembly construction method adopting automatic butt joint device |
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Application publication date: 20210202 |
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