CN110714476B - Assembled transmission line shaft tower basis - Google Patents
Assembled transmission line shaft tower basis Download PDFInfo
- Publication number
- CN110714476B CN110714476B CN201911108870.XA CN201911108870A CN110714476B CN 110714476 B CN110714476 B CN 110714476B CN 201911108870 A CN201911108870 A CN 201911108870A CN 110714476 B CN110714476 B CN 110714476B
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 12
- 239000004567 concrete Substances 0.000 claims abstract description 66
- 230000000712 assembly Effects 0.000 claims abstract description 51
- 238000000429 assembly Methods 0.000 claims abstract description 51
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 37
- 239000010959 steel Substances 0.000 claims abstract description 37
- 230000003014 reinforcing effect Effects 0.000 claims description 12
- 230000000149 penetrating effect Effects 0.000 claims description 9
- 210000001503 joint Anatomy 0.000 claims description 8
- 230000002787 reinforcement Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 11
- 239000000463 material Substances 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 6
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Foundations (AREA)
Abstract
The invention relates to the technical field of tower foundation structures, in particular to an assembled transmission line tower foundation. Comprising a plurality of unit components; the cell assembly includes a concrete assembly; the concrete component is of a columnar or square block structure, and at least one steel pipe component is embedded in the concrete component; the steel pipe assembly is of a tubular structure with one end buried in the concrete assembly and the other end extending outwards, the steel pipe assembly is fixedly connected with the steel pipe assembly on the other concrete assembly to connect the two unit assemblies into a whole, and the concrete assemblies are mutually butted through the steel pipe assemblies to form a tower foundation. The invention has the advantages of simple structure, convenient assembly, greatly improved construction efficiency of the tower foundation, reduced construction difficulty, shortened field operation time, convenient workshop control of component quality, more convenient and rapid assembly structure, saved a great deal of manpower and material resource costs, and great popularization value.
Description
Technical Field
The invention relates to the technical field of tower foundation structures, in particular to an assembled transmission line tower foundation.
Background
The tower foundation bears larger horizontal and vertical loads, so that the foundation body shape is larger. The traditional cast-in-situ reinforced concrete foundation has two defects: firstly, the maintenance time is long, the construction period of field operation is prolonged, and the engineering cost is increased; secondly, the method is limited by the characteristic of linear distribution of the construction operation of the power transmission engineering, the steel bars are bound in the wild, the concrete is poured in the wild, the site construction difficulty is high, the efficiency is low, and the quality control is difficult. In recent years, with the gradual popularization of mechanized construction of power transmission engineering and the high aging requirement of power grid rush repair after wind and ice disaster, the market demand of an assembled foundation is larger and larger, but the current foundation repair technology cannot meet the increasing market demand.
Disclosure of Invention
The invention aims to solve the defects of the background technology and provides an assembled transmission line tower foundation.
The technical scheme of the invention is as follows: the utility model provides an assembled transmission line shaft tower basis which characterized in that: comprising a plurality of unit components; the cell assembly includes a concrete assembly; the concrete component is of a columnar or square block structure, and at least one steel pipe component is embedded in the concrete component; the steel pipe assembly is of a tubular structure with one end buried in the concrete assembly and the other end extending outwards, the steel pipe assembly is fixedly connected with the steel pipe assembly on the other concrete assembly to connect the two unit assemblies into a whole, and the concrete assemblies are mutually butted through the steel pipe assemblies to form a tower foundation.
Further the steel pipe assembly comprises a vertical assembly which is used as a stand column support; one end of the vertical assembly is buried in the concrete assembly, and the other end of the vertical assembly is provided with a first connecting structure in butt joint with the adjacent vertical assembly.
The first connecting structure further comprises a plurality of first through holes formed in the pipe wall of the vertical assembly, and the first through holes are circumferentially arranged on the pipe wall of the vertical assembly at intervals; the end parts of the vertical assemblies are inserted into the adjacent vertical assemblies or sleeved outside the adjacent vertical assemblies and are fixedly connected into a whole through bolts penetrating through the first through holes.
The steel pipe assembly further comprises a horizontal assembly which is used for being hooked in parallel; one end of the horizontal component is buried in the concrete component, and the other end of the horizontal component is provided with a second connecting structure in butt joint with the adjacent horizontal component.
A clamping groove which extends along the axial direction of the horizontal component is further formed in the pipe body outside the concrete component by the horizontal component; the second connecting structure comprises a connecting plate arranged in the clamping groove; one side of the connecting plate is welded on the side wall of the clamping groove and a gap is reserved between the connecting plate and the other side of the clamping groove, and a second through hole is formed in the connecting plate; the end parts of the horizontal assemblies are inserted into the adjacent horizontal assemblies or sleeved outside the adjacent horizontal assemblies, so that the two connecting plates extend into the gaps to be mutually stuck tightly, and are fixedly connected into a whole through bolts penetrating into the second through holes.
Two clamping grooves are formed in the pipe body, located outside the concrete component, of the horizontal component, and the two clamping grooves are symmetrically arranged on two sides of the axis of the horizontal component; two ends of the connecting plate respectively pass through two clamping grooves on the horizontal component.
The two ends of the connecting plate further respectively penetrate through the two clamping grooves on the horizontal component and extend outwards of the horizontal component, and the plate body extending outwards of the horizontal component is provided with a second through hole.
Further, a plurality of third through holes which are arranged at intervals along the circumferential direction of the horizontal component are formed in the pipe body, which is positioned outside the concrete component, of the horizontal component, and the end part of the horizontal component extends into the adjacent horizontal component or is sleeved outside the adjacent horizontal component and is fixedly connected into a whole through bolts penetrating through the third through holes.
Further, a plurality of reinforcing ribs surrounding the outer side of the steel pipe assembly are arranged in the concrete assembly, and the reinforcing ribs are arranged in a crisscross mode to form a reinforcement framework poured in the concrete assembly.
A lifting lug is arranged on the concrete component; the lifting lug is a C-shaped component with one end buried in the concrete component and fixedly connected with the reinforcing ribs, and one end extending out of the concrete component.
The invention has the advantages that: 1. the tower foundation is assembled by a plurality of unit components, the unit components are steel pipe concrete members, adjacent unit components are assembled together through the steel pipe components, the unit components can be assembled into a required structure by selecting a proper number of unit components according to the structure of the tower foundation, the unit components can be expanded in the plane and the vertical direction according to the design requirement of bearing capacity, the installation mode is simple, the unit components can be manufactured in advance in a prefabrication factory, the tower foundation construction efficiency is greatly improved, the construction difficulty is reduced, the field construction period is effectively shortened, and the workshop control of the component quality is realized;
2. The steel pipe assembly comprises the vertical assembly serving as the upright post structure, the vertical assemblies are mutually butted to form a vertical post structure, and when in actual use, the section size of the vertical assembly can be changed according to the bearing requirement of a pole tower foundation, so that the bearing capacity of the foundation is improved;
3. The two vertical assemblies are sleeved with each other, the connector and the plug are respectively provided with the first through hole, after the two vertical assemblies are mutually butted together, the nut is pre-embedded on the inner wall of the inner pipe, and the two vertical assemblies can be fixedly connected into a whole through the bolts passing through the first through holes;
4. The steel pipe assembly also comprises horizontal assemblies which are horizontally arranged and used as hooking connection, the horizontal assemblies are mutually butted to hook a plurality of unit assemblies into a bearing foundation in the horizontal direction, and the horizontal assemblies can select a steel pipe structure with a proper pipe diameter according to actual requirements;
5. The adjacent horizontal components are connected in a sleeving manner, the connecting plates are arranged on the horizontal components, the connecting plates can position the directions of the horizontal components, the directions of the unit components can be confirmed conveniently in the sleeving process, the two groups of adjacent horizontal components can be installed conveniently, and the connecting plates are provided with the second through holes through which bolts penetrate, so that the connecting strength of the horizontal components is improved;
6. According to the invention, two groups of clamping grooves are arranged on the horizontal assembly, and the two groups of clamping grooves are symmetrically arranged, namely, the arranged connecting plates penetrate through the whole horizontal assembly, so that the contact area of the two groups of horizontal assemblies after being in butt joint is greatly improved, and the force transmission performance is improved;
7. The second through hole is formed in the part, extending out of the horizontal component, of the connecting plate, namely, after the horizontal component is in butt joint installation, the bolt installation is performed on the outer side of the horizontal component, and due to the fact that the nut is pre-embedded on the inner wall of the inner tube, the structure is convenient to install;
8. According to the invention, the third through holes are formed in the horizontal components, and when the two groups of horizontal components are butted and pass through the third through holes through bolts, the two groups of horizontal components can be fixedly connected into a whole and are matched with the connecting plate for use, so that the connection strength of the two groups of horizontal components can be greatly improved;
9. according to the invention, the reinforcing ribs are added in the externally-coated concrete, so that the structural crack resistance of the whole concrete is improved, the reinforcing ribs are coated on the outer side of the steel pipe assembly, and the integrity of the concrete and the steel pipe is enhanced;
10. According to the invention, the lifting lugs are buried in the concrete component, and for certain large-sized unit components, the lifting lugs are convenient for carrying the unit components;
11. The component unit of the invention adopts fixed modulus and size, can realize secondary utilization, and can reduce the waste of basic materials for the transition and modification of the circuit within the design service life.
The invention has the advantages of simple structure, convenient assembly, greatly improved construction efficiency of the tower foundation, reduced construction difficulty, shortened field operation time, convenient workshop control of component quality, more convenient and rapid assembly structure, saved a great deal of manpower and material resource costs, and great popularization value.
Drawings
Fig. 1: the front view of the tower foundation of the invention;
fig. 2: the tower foundation of the invention is seen from the top;
fig. 3: the vertical assembly structure of the invention is schematically shown;
fig. 4: A-A view in fig. 3 of the present invention;
fig. 5: the horizontal component structure of the invention is schematically shown;
fig. 6: B-B view in FIG. 5 of the present invention;
Wherein: 1-a concrete assembly; 2-a vertical assembly; 3-a first through hole; 4-a horizontal assembly; 5-a clamping groove; 6, connecting a plate; 7-a second through hole; 8-a third through hole; 9, reinforcing ribs; 10-lifting lug.
Detailed Description
The invention will now be described in further detail with reference to the drawings and to specific examples.
As shown in fig. 1 to 6, the tower foundation of the present embodiment is an assembled structure, which is assembled from a plurality of unit components. As shown in fig. 1 to 6, the unit assembly of the present embodiment includes two parts, a concrete assembly 1 and a steel pipe assembly. The steel pipe assembly is a tubular structure with one end buried in the concrete assembly 1 and the other end extending outwards, the concrete assembly 1 can be a columnar structure or a square block structure, and the concrete assembly 1 of the embodiment is a cube or a cuboid. The concrete component 1 is internally provided with a plurality of reinforcing ribs 9 which surround the outer side of the steel pipe component, and the reinforcing ribs 9 are arranged in a crisscross manner to form a reinforcement cage which is poured in the concrete component 1. The concrete component 1 is provided with a lifting lug 10, and the lifting lug 10 is a C-shaped component with one end buried in the concrete component 1 and fixedly connected with the reinforcing ribs 9 and one end extending out of the concrete component 1. For certain large-sized unit components, lifting lugs 10 are convenient for lifting and carrying.
The steel pipe assembly of this embodiment includes two sets of, as shown in fig. 3-4, and the steel pipe assembly includes vertical assembly 2 that is the stand and supports, and vertical assembly 2 one end buries in concrete assembly 1, and the other end is provided with the first connection structure with adjacent vertical assembly 2 butt joint. As shown in fig. 3 to 4, the first connection structure includes a plurality of first through holes 3 formed in the wall of the vertical component 2, the plurality of first through holes 3 are circumferentially spaced on the wall of the vertical component 2, and the end portions of the vertical components 2 are inserted into the adjacent vertical components 2 or sleeved outside the adjacent vertical components 2 and are fixedly connected into a whole through bolts penetrating through the first through holes 3.
During installation, two sets of vertical assemblies 2 corresponding to two sets of unit assemblies are sleeved with each other, so that first through holes 3 in the two sets of vertical assemblies 2 correspond to each other one by one, and then bolts penetrate through the first through holes 3 to fixedly connect the two sets of vertical assemblies into a whole, and the installation of the vertical assemblies 2 in the unit assemblies is completed.
The vertical assembly 2 may be a single steel pipe that passes through the concrete assembly 1 with both ends extending out of the concrete assembly 1. It is also possible that one end of the vertical assembly 2 is located in the concrete assembly 1 and the other end extends vertically. According to the actual requirements, the vertical assemblies 2 with different structures are adopted.
As shown in fig. 5 to 6, the steel pipe assembly further comprises a horizontal assembly 4 which is hooked in parallel, one end of the horizontal assembly 4 is buried in the concrete assembly 1, and a second connecting structure which is in butt joint with the adjacent horizontal assembly 4 is arranged at the other end of the horizontal assembly. The horizontal component 4 is located the draw-in groove 5 of extending along horizontal component 4 axial on the body outside the concrete component 1, two draw-in grooves 5 have been seted up on the body that horizontal component 4 is located the concrete component 1 outside, and two draw-in grooves 5 symmetry are arranged in the axis both sides of horizontal component 4. The second connection structure comprises a connection plate 6 arranged in the clamping groove 5, two ends of the connection plate 6 respectively penetrate through the two clamping grooves 5 on the horizontal component 4 and extend outwards of the horizontal component 4, and a second through hole 7 is formed in a plate body extending outwards of the horizontal component 4. One side of each connecting plate 6 is welded on the side wall of the corresponding clamping groove 5 and a gap is reserved between the connecting plates and the other side of the corresponding clamping groove 5, and the end parts of the horizontal assemblies 4 are inserted into the adjacent horizontal assemblies 4 or sleeved outside the adjacent horizontal assemblies 4 so that the two connecting plates 6 extend into the gaps to be mutually tightly attached and are fixedly connected into a whole through bolts penetrating through the second through holes 7.
The pipe body of the horizontal component 4 outside the concrete component 1 is provided with a plurality of third through holes 8 which are arranged at intervals along the circumferential direction of the horizontal component 4, and the end part of the horizontal component 4 extends into the adjacent horizontal component 4 or is sleeved outside the adjacent horizontal component 4 and is fixedly connected into a whole through bolts penetrating through the third through holes 8.
During actual installation, two groups of corresponding horizontal components 4 are mutually sleeved, connecting plates 6 extend into gaps of the opposite side horizontal components 4 and are attached to the connecting plates 6 in the opposite side horizontal components 4, second through holes 7 on the two connecting plates 6 are in one-to-one correspondence, and then the two connecting plates 6 are fixed together through bolts. The bolts penetrate through the corresponding third through holes on the horizontal components 4 to fixedly connect the two groups of horizontal components 4 into a whole.
According to practical requirements, a plurality of horizontal assemblies 4 may be disposed on the concrete assembly 1 of the present embodiment, as shown in fig. 1-2, and at most four groups of horizontal assemblies 4 and two groups of vertical assemblies 2 may be disposed on the unit assemblies in the present embodiment, but according to practical requirements, various special situations may be faced, even more than four groups of horizontal assemblies 4 and two groups of vertical assemblies 2 are within the protection scope of the present embodiment.
In the concrete assembly 1 of this embodiment, two sets of horizontal assemblies are on the same axis, two sets of horizontal assemblies 4 can be formed by using the same steel pipe to penetrate through the concrete assembly 1, and connecting plates 6 in the two sets of horizontal assemblies 4 can penetrate through the concrete assembly 1, namely, one connecting plate 6 extends from one set of horizontal assemblies 4 into the other set of horizontal assemblies 4.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. The utility model provides an assembled transmission line shaft tower basis which characterized in that: comprising a plurality of unit components; the unit assembly comprises a concrete assembly (1); the concrete component (1) is of a columnar or square block structure, and at least one steel pipe component is embedded in the concrete component (1); the steel pipe assembly is of a tubular structure with one end buried in the concrete assembly (1) and the other end extending outwards, the steel pipe assembly is fixedly connected with the steel pipe assembly on the other concrete assembly (1) to connect the two unit assemblies into a whole, and the concrete assemblies (1) are mutually butted through the steel pipe assemblies to form a tower foundation;
The steel pipe assembly comprises a vertical assembly (2) which is used as a stand column for supporting; one end of the vertical assembly (2) is buried in the concrete assembly (1), and the other end of the vertical assembly is provided with a first connecting structure in butt joint with the adjacent vertical assembly (2);
the first connecting structure comprises a plurality of first through holes (3) formed in the pipe wall of the vertical assembly (2), and the plurality of first through holes (3) are circumferentially arranged on the pipe wall of the vertical assembly (2) at intervals; the end parts of the vertical assemblies (2) are inserted into the adjacent vertical assemblies (2) or sleeved outside the adjacent vertical assemblies (2) and are fixedly connected into a whole through bolts penetrating through the first through holes (3);
The steel pipe assembly further comprises a horizontal assembly (4) which is used for being hooked in parallel; one end of the horizontal component (4) is buried in the concrete component (1), and the other end of the horizontal component is provided with a second connecting structure which is in butt joint with the adjacent horizontal component (4);
The horizontal component (4) is positioned on the pipe body outside the concrete component (1) and is provided with a clamping groove (5) extending along the axial direction of the horizontal component (4); the second connecting structure comprises a connecting plate (6) arranged in the clamping groove (5); one side of the connecting plate (6) is welded on the side wall of the clamping groove (5) and a gap is reserved between the connecting plate and the other side of the clamping groove (5);
Two clamping grooves (5) are formed in the pipe body, located outside the concrete component (1), of the horizontal component (4), and the two clamping grooves (5) are symmetrically arranged on two sides of the axis of the horizontal component (4); two ends of the connecting plate (6) respectively penetrate through two clamping grooves (5) on the horizontal assembly (4);
Two ends of the connecting plate (6) respectively penetrate through two clamping grooves (5) on the horizontal component (4) and extend outwards of the horizontal component (4), and a second through hole (7) is formed in a plate body extending outwards of the horizontal component (4); the end parts of the horizontal assemblies (4) are inserted into the adjacent horizontal assemblies (4) or sleeved outside the adjacent horizontal assemblies (4) so that the two connecting plates (6) extend into the gaps to be mutually stuck tightly and are fixedly connected into a whole through bolts penetrating into the second through holes (7);
The horizontal assembly (4) is arranged on a pipe body outside the concrete assembly (1) and is provided with a plurality of third through holes (8) which are arranged at intervals along the circumferential direction of the horizontal assembly (4), and the end part of the horizontal assembly (4) extends into the adjacent horizontal assembly (4) or is sleeved outside the adjacent horizontal assembly (4) and is fixedly connected into a whole through bolts penetrating through the third through holes (8).
2. A fabricated transmission line tower foundation according to claim 1, wherein: the concrete component (1) is internally provided with a plurality of reinforcing ribs (9) which surround the outer side of the steel pipe component, and the reinforcing ribs (9) are arranged in a crisscross manner to form a reinforcement cage which is poured in the concrete component (1).
3. A fabricated transmission line tower foundation according to claim 2, wherein: the concrete component (1) is provided with a lifting lug (10); the lifting lug (10) is a C-shaped component with one end buried in the concrete component (1) and fixedly connected with the reinforcing ribs (9) and one end extending out of the concrete component (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911108870.XA CN110714476B (en) | 2019-11-13 | 2019-11-13 | Assembled transmission line shaft tower basis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911108870.XA CN110714476B (en) | 2019-11-13 | 2019-11-13 | Assembled transmission line shaft tower basis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110714476A CN110714476A (en) | 2020-01-21 |
| CN110714476B true CN110714476B (en) | 2024-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911108870.XA Active CN110714476B (en) | 2019-11-13 | 2019-11-13 | Assembled transmission line shaft tower basis |
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| CN (1) | CN110714476B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101775813A (en) * | 2010-03-10 | 2010-07-14 | 江苏省电力设计院 | Composite foundation of power transmission line iron tower |
| CN201785764U (en) * | 2010-08-04 | 2011-04-06 | 华信邮电咨询设计研究院有限公司 | Steel pipe concrete structured tower mast foundation |
| CN204589785U (en) * | 2015-04-14 | 2015-08-26 | 西安中交土木科技有限公司 | A kind of rectangular steel pipe negative and positive interfix joint |
| CN105332388A (en) * | 2015-11-27 | 2016-02-17 | 中国一冶集团有限公司 | Assembled concrete-filled steel tubular column cap type tower crane foundation structure and construction method |
| CN207553128U (en) * | 2017-11-24 | 2018-06-29 | 国网江苏省电力公司南京供电公司 | A kind of shaft tower prefabricated assembled concrete stepped footing |
| CN109487812A (en) * | 2018-10-22 | 2019-03-19 | 四川电力设计咨询有限责任公司 | A kind of concrete assembled basic and its construction method of diagonal-bracing type |
| CN109680710A (en) * | 2019-02-28 | 2019-04-26 | 四川电力设计咨询有限责任公司 | The box-like basis of beam-board group and its construction method suitable for work transmission line |
| CN211421160U (en) * | 2019-11-13 | 2020-09-04 | 湖北省电力勘测设计院有限公司 | Assembled transmission line shaft tower basis |
-
2019
- 2019-11-13 CN CN201911108870.XA patent/CN110714476B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101775813A (en) * | 2010-03-10 | 2010-07-14 | 江苏省电力设计院 | Composite foundation of power transmission line iron tower |
| CN201785764U (en) * | 2010-08-04 | 2011-04-06 | 华信邮电咨询设计研究院有限公司 | Steel pipe concrete structured tower mast foundation |
| CN204589785U (en) * | 2015-04-14 | 2015-08-26 | 西安中交土木科技有限公司 | A kind of rectangular steel pipe negative and positive interfix joint |
| CN105332388A (en) * | 2015-11-27 | 2016-02-17 | 中国一冶集团有限公司 | Assembled concrete-filled steel tubular column cap type tower crane foundation structure and construction method |
| CN207553128U (en) * | 2017-11-24 | 2018-06-29 | 国网江苏省电力公司南京供电公司 | A kind of shaft tower prefabricated assembled concrete stepped footing |
| CN109487812A (en) * | 2018-10-22 | 2019-03-19 | 四川电力设计咨询有限责任公司 | A kind of concrete assembled basic and its construction method of diagonal-bracing type |
| CN109680710A (en) * | 2019-02-28 | 2019-04-26 | 四川电力设计咨询有限责任公司 | The box-like basis of beam-board group and its construction method suitable for work transmission line |
| CN211421160U (en) * | 2019-11-13 | 2020-09-04 | 湖北省电力勘测设计院有限公司 | Assembled transmission line shaft tower basis |
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| CN110714476A (en) | 2020-01-21 |
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