CN111119222A - Assembling device for ultra-high voltage direct current transmission line iron tower in alpine region - Google Patents
Assembling device for ultra-high voltage direct current transmission line iron tower in alpine region Download PDFInfo
- Publication number
- CN111119222A CN111119222A CN201911318829.5A CN201911318829A CN111119222A CN 111119222 A CN111119222 A CN 111119222A CN 201911318829 A CN201911318829 A CN 201911318829A CN 111119222 A CN111119222 A CN 111119222A
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- conversion
- high voltage
- direct current
- transmission line
- current transmission
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/35—Foundations formed in frozen ground, e.g. in permafrost soil
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/22—Sockets or holders for poles or posts
- E04H12/2253—Mounting poles or posts to the holder
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
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- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Foundations (AREA)
Abstract
The invention relates to an assembly device for an ultra-high voltage direct current transmission line iron tower in alpine regions, which comprises the following components: the lower ends of the conversion bracket (1) and the conversion bracket (1) are provided with a pylon foot plate (10), a conversion support (6) and a foundation assembly; the conversion support (6) is detachably arranged at the upper end of the conversion bracket (1); the foundation assembly is detachably arranged in a foundation, and the iron tower footing plate (10) is fixed at the top end of the foundation assembly. The invention provides an assembling device for an ultra-high voltage direct current transmission line iron tower in an alpine region, which effectively solves the technical problems that the assembling device in the alpine region is inconvenient to construct and is not suitable for the alpine region.
Description
Technical Field
The invention relates to the technical field of prefabricated assembly foundations, in particular to an assembly device for an ultra-high voltage direct current transmission line iron tower in a severe cold region.
Background
Under the background of global energy interconnection construction, special areas such as alpine regions are often difficult to avoid by long-distance, trans-regional and large-capacity ultrahigh-voltage direct-current transmission lines, and due to the topography and climate characteristics of the alpine regions, frozen soil in the alpine regions is not changed all the year round, so that corresponding unique geological characteristics are formed in the alpine regions.
The construction window period in the alpine region is short, when a conventional cast-in-place concrete foundation is adopted, the problems of formwork erecting, pouring and maintenance of concrete in winter are difficult to avoid, the construction difficulty is high, the construction period is long, the surface quality of the concrete foundation is difficult to guarantee, and large frost heaving force is easy to generate in a frozen soil environment to generate adverse effects on the foundation. The extra-high voltage direct current transmission tower foundation has large acting force and large size and burial depth, so that the length and the section of an assembly member are large when the assembly type foundation is adopted, the weight of a single member is large, the requirement on mechanical type selection is high, and the on-site installation and in-place are not facilitated, so that the type selection of the extra-high voltage direct current transmission tower assembly type foundation in alpine regions is restricted.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides an assembling device for an ultra-high voltage direct current transmission line iron tower in an alpine region.
The technical scheme provided by the invention is as follows:
the utility model provides an assembly quality that is used for extra-high voltage direct current transmission line iron tower in alpine region which characterized in that: the method comprises the following steps: the lower ends of the conversion bracket (1) and the conversion bracket (1) are provided with a pylon foot plate (10), a conversion support (6) and a foundation assembly;
the conversion support (6) is detachably arranged at the upper end of the conversion bracket (1);
the foundation assembly is detachably arranged in a foundation, and the iron tower footing plate (10) is fixed at the top end of the foundation assembly.
Preferably, the number of the base components is multiple, and the number of the base components is consistent with that of the conversion brackets (1);
wherein each conversion bracket (1) is provided with a basic component.
Preferably, the base assembly comprises: the prefabricated concrete support structure comprises a vertical column (3) and a prefabricated concrete support structure which is detachably arranged at the bottom of the vertical column (3);
the precast concrete support structure includes: a plurality of precast concrete cross beams (4) and precast concrete battens which are arranged in parallel;
the precast concrete laths are vertically and detachably arranged below the precast concrete cross beam (4).
Preferably, the prefabricated concrete cross beam structure further comprises bolts (7), and the plurality of prefabricated concrete battens and the plurality of prefabricated concrete cross beams (4) are connected through the bolts (7).
Preferably, the upright (3) comprises: the device comprises a column, an upper flange positioned at the top of the column, a lower flange positioned at the bottom of the column, a first flange bolt (2) and a second flange bolt (5);
the upper flange is connected with the tower foot plate (10) through the flange bolt I (2);
the lower flange, the precast concrete beam (4) and the precast concrete lath are connected through the second flange bolt (5).
Preferably, the upright post (3) is in a circular truncated cone shape;
and the slope of the cylindrical surface is 9 degrees, and the material is a steel pipe.
Preferably, the conversion support (1) adopts an angle steel truss.
Preferably, the conversion support (6) comprises: a transition support body (61) and a plurality of gusset plates one (62);
the first gusset plates (62) are connected with the conversion bracket (1), and the first gusset plates (62) are arranged on the conversion support main body (61); the conversion support main body (61) is connected with the tower foot plate (10).
Preferably, the footing plate (10) comprises: a tower foot plate main body (11) and a plurality of second gusset plates (12);
the second node plates (12) are connected with the lower end of the conversion bracket (1), and the second node plates (12) are arranged on the tower foot plate main body (11); the tower foot plate main body (11) is connected with the upper flange and the conversion support main body (61).
Preferably, the step plate main body (11) is circular.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention provides an assembly device for an ultra-high voltage direct current transmission line iron tower in an alpine region, which comprises the following components: the lower ends of the conversion bracket (1) and the conversion bracket (1) are provided with a pylon foot plate (10), a conversion support (6) and a foundation assembly; the conversion support (6) is detachably arranged at the upper end of the conversion bracket (1); the foundation assembly is detachably arranged in a foundation, the iron tower foot plate (10) is fixed at the top end of the foundation assembly, the assembly is an assembly device, and the technical problems that the assembly device in the alpine region is inconvenient to construct and is not suitable for the alpine region are effectively solved.
2. The invention provides an assembling device for an extra-high voltage direct current transmission line iron tower in a severe cold area, which effectively reduces the adverse effect of the tangential freeze-drawing force of frozen soil on a foundation compared with the prior art, and can completely eliminate the influence of the tangential freeze-drawing force on the upward drawing stability of the foundation when the gradient of the conical surface of an upright post 3 reaches 9 degrees.
3. The invention provides an assembly device for an ultra-high voltage direct current transmission line iron tower in a severe cold region, which has the advantages that all components in the device are small in size and light in weight, construction requirements can be met by adopting small machinery, the mechanized construction level is improved, the defects that a conventional assembly type foundation is single in weight and inconvenient to transport and install are overcome, and the transportation cost is greatly reduced.
4. The invention provides an assembly device for an extra-high voltage direct current transmission line iron tower in a severe cold area, wherein a foundation component is prefabricated in a factory mode, the difficult problem that concrete is difficult to pour and condense under a cold condition can be solved, the quality is better guaranteed compared with the quality of in-situ pouring, the engineering construction standard is improved, in addition, all the components are connected through bolts, the in-situ installation is convenient to place, the labor intensity of constructors is greatly reduced, the construction efficiency is high, the labor cost is saved, the construction period is effectively shortened, in-situ stirring, pouring and concrete ring maintenance are omitted, the environment-friendly effect is realized, and the economic and social benefits are obvious.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the base assembly;
FIG. 3 is a top view of the base assembly;
FIG. 4 is a front view of a transition support and transition support
FIG. 5 is a side view of the transition support and transition support;
FIG. 6 is a top view of the transition support;
FIG. 7 is a top view of a tower foot;
in the figure: the method comprises the following steps of 1-conversion support, 2-first flange bolts, 3-vertical columns, 4-precast concrete beams, 5-second flange bolts, 6-conversion support, 7-bolts, 8-first precast concrete laths, 9-second precast concrete laths, 10-tower foot plates, 61-conversion support main bodies, 62-first node plates, 11-tower foot plate main bodies and 12-second node plates.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1, the assembling device for the ultra-high voltage direct current transmission line iron tower in the alpine region comprises: the lower ends of the conversion bracket 1 and the conversion bracket 1 are provided with an iron tower foot plate 10, a conversion support 6 and a foundation assembly;
the conversion support 6 is detachably arranged at the upper end of the conversion bracket 1;
the foundation assembly is detachably mounted in a foundation, and the iron tower footing plate 10 is fixed to the top end of the foundation assembly.
The device effectively solves the technical problems that the assembly device in the alpine region is inconvenient to construct and is not suitable for the alpine region.
Wherein the number of the basic components is a plurality, and the number of the basic components is consistent with that of the conversion brackets (1);
moreover, the conversion bracket 1 is provided with four support legs, and the bottom of each support leg is detachably provided with a base component.
As shown in fig. 2 and 3, the base assembly includes: a circular truncated cone-shaped upright post 3 and a precast concrete supporting structure which is detachably arranged at the bottom of the upright post 3.
The precast concrete support structure includes: a plurality of precast concrete crossbeams 4 which are arranged in parallel and a plurality of precast concrete laths which are arranged in parallel and are detachably connected below the precast concrete crossbeams 4.
The precast concrete laths are vertically and detachably arranged below the precast concrete cross beam 4.
The precast concrete plank includes: a first concrete precast lath 8 and a second concrete precast lath 9.
The device further comprises bolts 7, and the precast concrete strips and the precast concrete cross beams 4 are connected through the bolts 7.
The column 3 includes: the upper flange is positioned at the top of the column, and the lower flange, the first flange bolt 2 and the second flange bolt 5 are positioned at the bottom of the column;
the upper flange is connected with the tower foot plate 10 through the flange bolt I2;
and the lower flange, the precast concrete beam 4 and the precast concrete lath are connected through the flange bolt II (5).
The upright post 3 is made of a steel pipe, and the gradient of the cylindrical surface of the upright post 3 is 9 degrees so as to offset tangential frost heaving force.
As shown in fig. 4 and 5, the conversion bracket 1 adopts an angle iron truss, and includes: four obliquely arranged pillars and a reinforcing support connected between the adjacent pillars.
The angle steel components of the conversion bracket 1 are connected through bolts 7.
The upper ends of the struts are connected to the conversion support 6 by screws, and the lower ends of the struts are respectively provided with a tower foot plate 10 for connecting a foundation component.
As shown in fig. 6, the conversion support 6 includes a conversion support body 61 and a plurality of gusset plates 62 disposed on the conversion support body 61.
The conversion support main body 61 is used for being connected with the iron tower foot plate 10.
The first gusset plate 62 is used for connecting with the conversion bracket 1.
The upper end of the conversion bracket 1 is connected with an iron tower foot plate 10 through a conversion support 6.
As shown in fig. 7, the footing plate 10 includes: a circular tower foot plate main body 11 and a plurality of node plates two 12 arranged on the tower foot plate main body 11.
The tower foot plate main body 11 is used for connecting an upper flange.
And the second node plate 12 is used for connecting the lower end of the conversion bracket 1.
The tower foot plate 10 is connected with an upper flange in the foundation assembly through a flange bolt I2.
Example 2
Based on the same invention concept, the invention also provides an assembly method for the ultra-high voltage direct current transmission line iron tower in the alpine region, which comprises the following steps:
assembling a base assembly;
the conversion bracket 1 is assembled with the base assembly.
The assembly foundation assembly, comprising:
firstly placing a plurality of precast concrete laths which are parallel to each other, placing a precast concrete lath 8 in the middle, placing a second precast concrete lath 9 on two sides of the first precast concrete lath 8, placing a precast concrete beam 4 above the precast concrete laths, making the precast concrete beam 4 and the precast concrete laths vertical to each other, and adopting a bolt 7 to sequentially penetrate through the precast concrete beam 4 and the second precast concrete lath 9 to connect the two together;
then, the upright post 3 assembled with the upper flange and the lower flange is placed above the middle position of the precast concrete beam 4, and a flange bolt II 5 sequentially penetrates through the lower flange, the precast concrete beam 4 and the first precast concrete lath 8 to connect the lower flange, the precast concrete beam 4 and the first precast concrete lath 8 together, so that a single foundation assembly is formed;
wherein, the middle and lower section of the basic assembly is installed below the ground, and the upper end is positioned above the ground.
The assembly of the conversion bracket 1 and the base component includes:
hoisting the conversion support 1 to enable four support legs of the conversion support 1 to be respectively placed above the four foundation assemblies, and connecting the tower foot plate 10 and the upper flange together through a flange bolt I2, so that the conversion support 1 and the foundation assemblies are assembled;
wherein, the converter support 6 is connected with the iron tower foot plate 10.
From the aspects of design and construction feasibility, convenience and anti-freezing pulling force effectiveness, the model selection of the assembly type foundation of the extra-high voltage direct current transmission iron tower in the alpine region follows the following main principles:
(1) the size of the component is miniaturized, the weight is light, and the transportation and the installation are convenient;
(2) the whole foundation and the appearance of the component are better to offset the frost heaving force;
(3) the material of the member should have frost heaving resistance.
The invention provides an assembling device for an extra-high voltage direct current transmission line iron tower in an alpine region by analyzing geological characteristics of frozen soil in the alpine region and combining the characteristics of the basic acting force of the extra-high voltage direct current transmission line iron tower.
The modular assembly apparatus comprises 1 four-cornered conversion support 1 and 4 independent base modules.
Compared with the prior art, the adverse effect of the tangential frozen-out force of the frozen soil on the foundation is effectively reduced, and when the gradient of the conical surface of the upright post 3 reaches 9 degrees, the influence of the tangential frozen-out force on the foundation can be completely eliminated.
The foundation assembly is prefabricated in an industrial mode, the difficult problem that concrete is difficult to pour and condense under cold conditions can be solved, quality is guaranteed compared with that of in-situ pouring, and engineering construction standards are improved.
The invention has small size and light weight of each component, can meet the construction requirement by adopting small machinery, improves the mechanized construction level, solves the defects of single heavy conventional assembly type foundation and inconvenient transportation and installation, and greatly reduces the transportation cost.
And all the components are connected through bolts, so that the installation on site is convenient, the labor intensity of constructors is greatly reduced, the construction efficiency is high, the labor cost is saved, and the construction period is effectively shortened. The concrete ring joint is saved by on-site stirring, pouring and maintaining, the environment is protected, and the economic and social benefits are remarkable.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the present invention is included in the scope of the claims of the present invention filed as filed.
Claims (10)
1. The utility model provides an assembly quality that is used for extra-high voltage direct current transmission line iron tower in alpine region which characterized in that includes: the lower ends of the conversion bracket (1) and the conversion bracket (1) are provided with a pylon foot plate (10), a conversion support (6) and a foundation assembly;
the conversion support (6) is detachably arranged at the upper end of the conversion bracket (1);
the foundation assembly is detachably arranged in a foundation, and the iron tower footing plate (10) is fixed at the top end of the foundation assembly.
2. The assembling device for the extra-high voltage direct current transmission line iron tower in the alpine region according to claim 1, characterized in that the number of the basic components is multiple, and the number of the basic components is consistent with that of the conversion supports (1);
wherein each conversion bracket (1) is provided with a basic component.
3. The assembling device for the ultra-high voltage direct current transmission line iron tower in the alpine region according to claim 2, wherein the foundation assembly comprises: the prefabricated concrete support structure comprises a vertical column (3) and a prefabricated concrete support structure which is detachably arranged at the bottom of the vertical column (3);
the precast concrete support structure includes: a plurality of precast concrete cross beams (4) and precast concrete battens which are arranged in parallel;
the precast concrete laths are vertically and detachably arranged below the precast concrete cross beam (4).
4. The assembling device for the extra-high voltage direct current transmission line iron tower in the alpine region according to claim 3, further comprising bolts (7), wherein the precast concrete laths and the precast concrete cross beams (4) are connected through the bolts (7).
5. The assembling device for the ultra-high voltage direct current transmission line iron tower in the alpine region according to claim 3, wherein the upright column (3) comprises: the device comprises a column, an upper flange positioned at the top of the column, a lower flange positioned at the bottom of the column, a first flange bolt (2) and a second flange bolt (5);
the upper flange is connected with the tower foot plate (10) through the flange bolt I (2);
the lower flange, the precast concrete beam (4) and the precast concrete lath are connected through the second flange bolt (5).
6. The assembling device for the ultra-high voltage direct current transmission line iron tower in the alpine region according to claim 5, characterized in that the upright column (3) is in a circular truncated cone shape;
and the slope of the cylindrical surface is 9 degrees, and the material is a steel pipe.
7. The assembling device for the ultra-high voltage direct current transmission line iron tower in the alpine region according to claim 1, characterized in that the conversion support (1) adopts an angle steel truss.
8. The assembling device for the ultra-high voltage direct current transmission line iron tower in the alpine region according to claim 1, wherein the conversion support (6) comprises: a transition support body (61) and a plurality of gusset plates one (62);
the first gusset plates (62) are connected with the conversion bracket (1), and the first gusset plates (62) are arranged on the conversion support main body (61); the conversion support main body (61) is connected with the tower foot plate (10).
9. The assembling device for the ultra-high voltage direct current transmission line iron tower in the alpine region according to claim 1, wherein the tower foot plate (10) comprises: a tower foot plate main body (11) and a plurality of second gusset plates (12);
the second node plates (12) are connected with the lower end of the conversion bracket (1), and the second node plates (12) are arranged on the tower foot plate main body (11); the tower foot plate main body (11) is connected with the upper flange and the conversion support main body (61).
10. The assembling device for the ultra-high voltage direct current transmission line iron tower in the alpine region according to claim 9, wherein the tower foot plate main body (11) is circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911318829.5A CN111119222A (en) | 2019-12-19 | 2019-12-19 | Assembling device for ultra-high voltage direct current transmission line iron tower in alpine region |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911318829.5A CN111119222A (en) | 2019-12-19 | 2019-12-19 | Assembling device for ultra-high voltage direct current transmission line iron tower in alpine region |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111119222A true CN111119222A (en) | 2020-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911318829.5A Pending CN111119222A (en) | 2019-12-19 | 2019-12-19 | Assembling device for ultra-high voltage direct current transmission line iron tower in alpine region |
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| Country | Link |
|---|---|
| CN (1) | CN111119222A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113417313A (en) * | 2021-07-20 | 2021-09-21 | 四川电力设计咨询有限责任公司 | Section steel support shroud plate assembled foundation for frozen soil area |
| CN114319980A (en) * | 2021-11-23 | 2022-04-12 | 中国能源建设集团安徽省电力设计院有限公司 | Steel pipe concrete and steel pipe conversion node suitable for large-scale power transmission tower |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102400471A (en) * | 2010-09-14 | 2012-04-04 | 河南省电力公司安阳供电公司 | Iron tower foundation |
| CN204919588U (en) * | 2015-08-14 | 2015-12-30 | 中国能源建设集团安徽省电力设计院有限公司 | A board -like assembly of cavity round platform basis for frozen soil area transmission line iron tower |
| CN106498973A (en) * | 2016-12-27 | 2017-03-15 | 国网江苏省电力公司经济技术研究院 | A kind of assembled type base for power transmission line iron tower and its installation method |
| CN206941634U (en) * | 2017-05-25 | 2018-01-30 | 江西能创电力勘测设计有限公司 | A kind of iron tower foundation |
| CN108060679A (en) * | 2017-12-11 | 2018-05-22 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of integrated transmission line of electricity assembling type base and its construction method |
| CN109914461A (en) * | 2019-04-01 | 2019-06-21 | 四川电力设计咨询有限责任公司 | Suitable for electric power pylon band chuck column-lath assembling type base and construction method |
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2019
- 2019-12-19 CN CN201911318829.5A patent/CN111119222A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400471A (en) * | 2010-09-14 | 2012-04-04 | 河南省电力公司安阳供电公司 | Iron tower foundation |
| CN204919588U (en) * | 2015-08-14 | 2015-12-30 | 中国能源建设集团安徽省电力设计院有限公司 | A board -like assembly of cavity round platform basis for frozen soil area transmission line iron tower |
| CN106498973A (en) * | 2016-12-27 | 2017-03-15 | 国网江苏省电力公司经济技术研究院 | A kind of assembled type base for power transmission line iron tower and its installation method |
| CN206941634U (en) * | 2017-05-25 | 2018-01-30 | 江西能创电力勘测设计有限公司 | A kind of iron tower foundation |
| CN108060679A (en) * | 2017-12-11 | 2018-05-22 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of integrated transmission line of electricity assembling type base and its construction method |
| CN109914461A (en) * | 2019-04-01 | 2019-06-21 | 四川电力设计咨询有限责任公司 | Suitable for electric power pylon band chuck column-lath assembling type base and construction method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113417313A (en) * | 2021-07-20 | 2021-09-21 | 四川电力设计咨询有限责任公司 | Section steel support shroud plate assembled foundation for frozen soil area |
| CN113417313B (en) * | 2021-07-20 | 2023-02-03 | 四川电力设计咨询有限责任公司 | Section steel support shroud plate assembled foundation for frozen soil area |
| CN114319980A (en) * | 2021-11-23 | 2022-04-12 | 中国能源建设集团安徽省电力设计院有限公司 | Steel pipe concrete and steel pipe conversion node suitable for large-scale power transmission tower |
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