CN106088133B - Power transmission line composite foundation for desert area - Google Patents
Power transmission line composite foundation for desert area Download PDFInfo
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- CN106088133B CN106088133B CN201610423324.5A CN201610423324A CN106088133B CN 106088133 B CN106088133 B CN 106088133B CN 201610423324 A CN201610423324 A CN 201610423324A CN 106088133 B CN106088133 B CN 106088133B
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 38
- 239000002131 composite material Substances 0.000 title claims abstract description 33
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 64
- 239000002689 soil Substances 0.000 claims abstract description 16
- 230000002787 reinforcement Effects 0.000 claims description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000004567 concrete Substances 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 26
- 238000009412 basement excavation Methods 0.000 abstract description 10
- 239000004576 sand Substances 0.000 abstract description 5
- 230000008878 coupling Effects 0.000 description 7
- 238000010168 coupling process Methods 0.000 description 7
- 238000005859 coupling reaction Methods 0.000 description 7
- 210000003205 muscle Anatomy 0.000 description 6
- 230000005484 gravity Effects 0.000 description 4
- 230000002708 enhancing effect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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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
- E02D27/10—Deep foundations
- E02D27/18—Foundations formed by making use of caissons
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/20—Miscellaneous comprising details of connection between elements
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- 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 provides a composite foundation of a power transmission line for a desert area. The foundation includes: the open caisson comprises an open caisson, a cross beam and a plurality of reinforced concrete slabs; the open caisson is used for being embedded into a foundation pit and is filled with backfill soil; the reinforced concrete slabs are arranged at the upper end of the open caisson side by side and connected with the side wall of the open caisson; the cross beam is arranged on the upper portion of the reinforced concrete plates and connected with the reinforced concrete plates. According to the invention, the open caisson is used as a supporting structure of the foundation pit wall, so that the problem of large-area collapse or sand drift phenomenon during excavation of the foundation pit is solved, the construction progress and the construction safety are ensured, the reinforced concrete slab, the cross beam and the open caisson are connected, the integrity of the foundation is enhanced, the requirements of pressing down stability and pulling up stability are met, and the open caisson, the reinforced concrete slab and the cross beam are simple in structure and convenient to transport and assemble.
Description
Technical Field
The invention relates to the technical field of power transmission line foundations, in particular to a power transmission line composite foundation for a desert area.
Background
Along with the quick construction of extra-high voltage engineering, line corridor often need pass through some desert areas, at present, current transmission line basis generally adopts the step basis, and the easy sand drift or large tracts of land collapse that appear during construction operations such as foundation ditch excavation influence construction progress and construction safety, consequently need excavate greatly and guarantee that the construction is smooth and safe, caused to compare with other areas and need occupy bigger area to general transmission line basis to it is big to cause the excavation volume of earthwork, construction period extension, construction cost increases. And because the earthwork development amount is large, the disturbance to the surrounding environment is large, and the original structural state of the soil around the foundation pit is damaged.
In addition, because of the large excavation, a large construction tool must be relied on, the working efficiency is low, the installation cost is high and the maintenance is difficult.
Disclosure of Invention
In view of the above, the invention provides a power transmission line composite foundation for a desert area, and aims to solve the problems of large foundation pit area, large earth excavation amount, long construction period and high construction cost in the desert area.
In one aspect, the present invention provides a power transmission line composite foundation for a desert area, the foundation comprising: the open caisson comprises an open caisson, a cross beam and a plurality of reinforced concrete slabs; the open caisson is used for being embedded into a foundation pit and is filled with backfill soil; the reinforced concrete slabs are arranged at the upper end of the open caisson side by side and connected with the side wall of the open caisson; the cross beam is arranged on the upper portion of the reinforced concrete plates and connected with the reinforced concrete plates.
Further, in the above-mentioned transmission line complex basis for desert area, still include: the anchor bolt, the first nut and the second nut; the beam is provided with a first connecting hole, and the reinforced concrete slab is provided with a second connecting hole corresponding to the first connecting hole; the foundation bolt penetrates through the first connecting hole and the second connecting hole, the first nut is in threaded connection with a first extending end of the foundation bolt, and the second nut is in threaded connection with a second extending end of the foundation bolt.
Further, in the power transmission line composite foundation for the desert area, the opposite side surfaces of two adjacent reinforced concrete slabs are in contact with each other.
Furthermore, in the power transmission line composite foundation for the desert area, a plurality of first main ribs are embedded in the side wall of the open caisson, and each first main rib is provided with a first extending part arranged outside the side wall of the open caisson; the reinforced concrete slab is provided with a plurality of third connecting holes, and the first extending parts of the first main reinforcements penetrate through the third connecting holes in a one-to-one correspondence manner and are in threaded connection with the third nuts.
Furthermore, in the power transmission line composite foundation for the desert area, a plurality of second main ribs are embedded in the side wall of the open caisson, and each second main rib is provided with a second extending part arranged outside the side wall of the open caisson; the beam is provided with a plurality of fourth connecting holes, and the reinforced concrete slab is provided with fifth connecting holes corresponding to the fourth connecting holes; and the second extending parts of the second main ribs penetrate through the fourth connecting holes and the fifth connecting holes in a one-to-one correspondence manner and are in threaded connection with the fourth nuts.
Further, in the above-mentioned transmission line complex basis for desert area, still include: a base plate; the backing plate is arranged between the reinforced concrete plate and the first nut; and the base plate is provided with a sixth connecting hole corresponding to the second connecting hole, and the foundation bolt penetrates through the sixth connecting hole.
Further, in the above-mentioned transmission line composite foundation for desert area, the crossbeam includes the muscle frame and waters and locates the concrete of muscle frame, wherein, the muscle frame includes a plurality of main muscle and stirrup, wherein, a plurality of the main muscle sets up side by side, and, each the main muscle is through the stirrup is connected.
Furthermore, in the power transmission line composite foundation for the desert area, the number of the foundation bolts is multiple; and the foundation bolts are arranged around the center of the cross beam in a square shape.
Furthermore, in the power transmission line composite foundation for the desert area, each first main rib is provided with a third extending part arranged outside the side wall of the open caisson.
Furthermore, in the power transmission line composite foundation for the desert area, each second main rib is provided with a fourth extending part arranged outside the side wall of the open caisson.
According to the invention, the open caisson is used as a supporting structure of the foundation pit wall, so that the problem of large-area collapse or sand drift phenomenon during excavation of the foundation pit is solved, the construction progress and the construction safety are ensured, the reinforced concrete slab, the cross beam and the open caisson are connected, the integrity of the foundation is enhanced, the requirements of pressing down stability and pulling up stability are met, and the open caisson, the reinforced concrete slab and the cross beam are simple in structure and convenient to transport and assemble.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural diagram of a composite foundation of a power transmission line for a desert area according to an embodiment of the present invention;
fig. 2 is a top view of a composite foundation of a power transmission line for a desert area according to an embodiment of the present invention;
fig. 3 is a schematic view illustrating a connection between a reinforced concrete slab and a cross beam in the power transmission line composite foundation for a desert area according to the embodiment of the present invention;
fig. 4 is a schematic view illustrating connection between a reinforced concrete slab and an open caisson in a composite foundation for a power transmission line in a desert area according to an embodiment of the present invention;
fig. 5 is a schematic view illustrating connection of a reinforced concrete slab, a beam and an open caisson in the power transmission line composite foundation for the desert area according to the embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of a power transmission line composite foundation for a desert area according to an embodiment of the present invention, and fig. 2 is a top view of the power transmission line composite foundation for the desert area according to the embodiment of the present invention. As shown in the figure, the power transmission line composite foundation for the desert area comprises: the open caisson comprises an open caisson 1, a cross beam 9 and a plurality of reinforced concrete slabs 2. Wherein the content of the first and second substances,
the open caisson 1 is used for embedding a foundation pit and is filled with backfill soil. During specific implementation, the shape of the open caisson 1 can be a cuboid, the cross section of the open caisson 1 is a square, and openings are formed in two ends of the open caisson 1, so that soil can be dug at the opening at the lower end of the open caisson 1. According to the size and position requirements of design drawings, the open caisson 1 is accurately and safely hoisted to a designed position, then soil is dug in the open caisson, the open caisson is sunk to a designed elevation after overcoming the frictional resistance of the well wall by means of the gravity of the open caisson, so that the open caisson is embedded into a foundation pit, then concrete is poured to achieve the bottom sealing effect of the open caisson, and finally the dug soil is backfilled into the open caisson 1. The open caisson 1 meets the requirement of uplift stability by means of the friction performance between the side wall and the sandy soil, the backfill soil and the self gravity.
In the construction process, the side wall of the open caisson has a supporting function, so that pit wall supports or sheet pile enclosure walls do not need to be arranged in the process of digging a foundation pit, construction is simplified, and the problems that a desert area needs to occupy a larger area compared with other areas, the excavated volume of earthwork is large, the construction period is long, and the construction cost is increased are solved.
The reinforced concrete slabs 2 are arranged at the upper end of the open caisson 1 side by side and are connected with the side wall of the open caisson 1. During the concrete implementation, reinforced concrete board 2 can be the board of cuboid, and each reinforced concrete board 2 is along the upper end of the setting of length direction mutual parallel at open caisson 1. The opposite side surfaces of two adjacent reinforced concrete plates 2 are contacted, and the reinforced concrete plates 2 close the opening at the upper end of the open caisson 1, so that the connection strength of the reinforced concrete plates 2 and the open caisson 1 is improved.
The cross member 9 is provided on the upper portion of the reinforced concrete slabs 2 and is connected to each of the reinforced concrete slabs 2. During concrete implementation, the cross beam 9 is arranged along the width direction of the reinforced concrete slabs 2, specifically, the length direction of the cross beam 9 is perpendicular to the length direction of the reinforced concrete slabs 2, and the cross beam 9 connects the reinforced concrete slabs 2 together, so that the integrity of the foundation is enhanced, and the downward pressure and the upward pulling force borne by the foundation are improved.
The open caisson is applied to the foundation pit in the desert area, the open caisson serves as a supporting structure of the foundation pit wall, the problem that large-area collapse or sand drift occurs when the foundation pit is excavated is solved, construction progress and construction safety are guaranteed, the foundation pit is excavated through the open caisson, the problems that in the prior art, the area of the foundation pit in the desert area is large, the earthwork excavation amount is large, the construction period is long, and construction cost is increased are solved, and the small earthwork excavation amount causes small disturbance to the surrounding environment, so that the surrounding environment is favorably protected. The reinforced concrete slab, the cross beam and the open caisson are connected, so that the integrity of the foundation is enhanced, the foundation not only meets the requirement of downward pressing stability in desert by utilizing the bearing performance of the reinforced concrete slab and the cross beam and the friction performance between the open caisson wall and sandy soil, but also meets the requirement of upward pulling stability by depending on the friction performance between the wall part of the open caisson and the sandy soil, backfill soil and the self gravity of the foundation. And the open caisson, the reinforced concrete slab and the cross beam have simple structures and are convenient to transport and assemble.
In the above embodiment, as shown in fig. 3, the power transmission line composite foundation for a desert area further includes: an anchor bolt 3, a first nut 4 and a second nut 5. During specific implementation, the foundation bolt 3, the first nut 4 and the second nut 5 are made of steel, so that the strength of the foundation bolt 3, the first nut 4 and the second nut 5 is increased. The number of the first nuts 4 and the second nuts 5 may be two. Wherein the content of the first and second substances,
the cross beam 9 is provided with a first connecting hole 91, and the reinforced concrete slab 2 is provided with a second connecting hole 21 corresponding to the first connecting hole 91. In specific implementation, the diameters of the first connecting hole 91 and the second connecting hole 21 are slightly larger than the diameter of the anchor bolt 3.
The anchor bolt 3 is inserted through the first connection hole 91 and the second connection hole 21, and the first nut 4 is screwed with the first extension end 31 of the anchor bolt 3, and the second nut 5 is screwed with the second extension end 32 of the anchor bolt 3. In practice, the diameter of the first nut 4 is larger than that of the second coupling hole 21, the diameter of the second nut 5 is larger than that of the first coupling hole 91, and the cross beam 9 and the reinforced concrete slab 2 are tightly coupled together by adjusting the first nut 4 at the first protruding end 31 and adjusting the second nut 5 at the second protruding end 32.
It should be understood that, in use, the second protruding end 32 of the anchor bolt 3 is inserted into the connecting hole formed on the tower foot plate, and then the second nut 5 is screwed with the second protruding end 32, so as to connect the tower to the anchor bolt 3.
In the above embodiment, as shown in fig. 4, a plurality of first main ribs 11 are embedded in the side wall of the open caisson 1, each first main rib 11 is provided with a first extending portion 111 disposed outside the side wall of the open caisson 1, the reinforced concrete slab 2 is provided with a plurality of third connecting holes 22, and the first extending portions 111 of the first main ribs 11 are correspondingly inserted into the third connecting holes 22 one by one and are in threaded connection with the third nuts 6.
In specific implementation, the first main reinforcement 11 may be a steel reinforcement, so that the strength of the first main reinforcement 11 is increased. Each first main rib 11 is arranged along the height direction of the open caisson 1, each first main rib 11 is arranged at equal intervals, and correspondingly, each third connecting hole 22 is also arranged at equal intervals, so that the connecting positions of each first main rib 11 and the reinforced concrete slab 2 are uniform, and the connecting stability of the side wall of the open caisson 1 and the reinforced concrete slab 2 is enhanced.
The material of which the third nut 6 is made may be steel, so that the strength of the third nut 6 is increased. The third nut 6 has a diameter greater than that of the third coupling hole 22, and the reinforced concrete plate 2 is tightly coupled to the sidewall of the open caisson 1 by adjusting the third nut 6 at the first protrusion 111. The number of the third nuts 6 may be two, thereby enhancing the coupling strength of the reinforced concrete slab 2 to the side wall of the open caisson 1.
In the above embodiment, as shown in fig. 5, a plurality of second main ribs 12 are embedded in the side wall of the open caisson 1, each second main rib 12 is provided with a second extending portion 121 disposed outside the side wall of the open caisson 1, the cross beam 9 is provided with a plurality of fourth connecting holes 92, the reinforced concrete slab 2 is provided with fifth connecting holes 23 corresponding to the fourth connecting holes 92, and the second extending portions 121 of the second main ribs 12 are inserted through the fourth connecting holes 92 and the fifth connecting holes 23 in a one-to-one correspondence manner and are in threaded connection with the fourth nuts 7.
In particular, the second main reinforcement 12 may be a steel reinforcement, so that the strength of the second main reinforcement 12 is increased. Each second main rib 12 is arranged along the height direction of the open caisson 1, each second main rib 12 is arranged at equal intervals, correspondingly, each fourth connecting hole 92 and the fifth connecting hole 23 corresponding to the fourth connecting hole 92 are also arranged at equal intervals, so that the connecting positions of each second main rib 12 and the reinforced concrete slab 2 and the cross beam 9 are uniform, and the connecting stability of the side wall of the open caisson 1 and the reinforced concrete slab 2 and the cross beam 9 is enhanced.
The fourth nut 7 may be made of steel, so that the strength of the fourth nut 7 is increased. The fourth nut 7 has a diameter larger than the fourth coupling hole 92 and the fifth coupling hole 23 corresponding to the fourth coupling hole 92, and the reinforced concrete panel 2 and the cross beam 9 are tightly coupled to the side wall of the open caisson 1 by adjusting the fourth nut 7 at the second protrusion 121. The number of the fourth nuts 7 may be two, so that the connection strength of the reinforced concrete slab 2 and the cross beam 9 to the side wall of the open caisson 1 is enhanced.
In the above embodiment, the power transmission line composite foundation for the desert area may further include: a backing plate 8. In particular, the backing plate 8 may be a steel plate, thereby enhancing the strength of the backing plate 8. Wherein the content of the first and second substances,
the backing plate 8 is arranged between the reinforced concrete slab 2 and the first nut 4, the backing plate 8 is provided with a sixth connecting hole 81 corresponding to the second connecting hole 21, and the anchor bolt 3 penetrates through the sixth connecting hole 81. Since the upper surface of the tie plate 8 is in contact with the lower surface of the reinforced concrete slab 2, the pressure applied to the tie plate 8 by the first nut 4 is dispersed on the tie plate, so that the portion of the reinforced concrete slab 2 in contact with the tie plate 8 is subjected to the pressure from the tie plate 8, thereby enhancing the connection strength of the cross beam with the reinforced concrete slab.
In the above embodiment, the cross beam 9 includes a reinforcement frame and concrete poured on the reinforcement frame, wherein the reinforcement frame includes a plurality of main reinforcements and stirrups, wherein the plurality of main reinforcements are arranged side by side, and each main reinforcement is connected through the stirrups. During specific implementation, the cross beam 9 can be a rectangular plate, and each main rib can be arranged side by side in a rectangular shape, specifically, each main rib can be parallel to each other along the axial direction, and further, each main rib is arranged at equal intervals. The main reinforcement may be welded to the stirrup. Optionally, the main reinforcement and the stirrup can be connected with each other at the intersection position of the main reinforcement and the stirrup through the binding wire. Optionally, the stirrup may be wound around the main rib body, so as to connect the main rib and the stirrup together.
In the above embodiment, the number of anchor bolts 3 is plural, and each anchor bolt 3 is provided in a square shape around the center of the cross member 9. In specific implementation, the number of the anchor bolts 3 may be four, as shown in fig. 2, the four anchor bolts 3 are arranged in a square around the center of the cross beam 9, and the four anchor bolts 3 are respectively located at four vertexes of the square. Due to the arrangement of the foundation bolts 3, the power transmission line composite foundation for the desert area can bear the downward pressure and the upward pulling force of the tower connected with the foundation bolts 3 to the maximum extent.
In the above embodiment, each first main rib 11 is provided with the third extending portion 112 disposed outside the side wall of the open caisson 1, and each second main rib 12 is provided with the fourth extending portion 122 disposed outside the side wall of the open caisson 1. After the open caisson 1 sinks to the designed elevation, the third extending part 112 and the side wall of the open caisson are bent into the open caisson 1 at an angle of 90 degrees, the fourth extending part 122 and the side wall of the open caisson are bent into the open caisson 1 at an angle of 90 degrees, the third extending part 112 and the fourth extending part 122 form a reinforcing steel bar frame at the bottom of the open caisson 1, and then concrete is poured, so that the bottom strength of the open caisson 1 is increased.
In this embodiment, the open caisson is applied to the foundation pit in the desert area, the open caisson serves as a supporting structure of the foundation pit wall, the problem that the foundation pit collapses in a large area or sand drift occurs is solved, the construction progress and the construction safety are guaranteed, the foundation pit is excavated through the open caisson, the problems that in the prior art, the area of the foundation pit in the desert area is large, the earthwork excavation amount is large, the construction period is long, and the construction cost is increased are solved, and the earthwork excavation amount is small, so that the disturbance to the surrounding environment is small, and the surrounding environment is favorably protected. The reinforced concrete slab, the cross beam and the open caisson are connected, so that the integrity of the foundation is enhanced, the foundation not only meets the requirement of downward pressing stability in desert by utilizing the bearing performance of the reinforced concrete slab and the cross beam and the friction performance between the open caisson wall and sandy soil, but also meets the requirement of upward pulling stability by depending on the friction performance between the wall part of the open caisson and the sandy soil, backfill soil and the self gravity of the foundation. And the open caisson, the reinforced concrete slab and the cross beam have simple structures and are convenient to transport and assemble.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. A transmission line composite foundation for desert areas, characterized by comprising: the steel reinforced concrete open caisson comprises an open caisson (1), foundation bolts (3), first nuts (4), second nuts (5), a cross beam (9) and a plurality of reinforced concrete slabs (2); wherein the content of the first and second substances,
the open caisson (1) is embedded into a foundation pit and is provided with backfill soil;
the reinforced concrete slabs (2) are arranged at the upper end of the open caisson (1) side by side and are connected with the side wall of the open caisson (1);
the cross beam (9) is arranged at the upper part of the reinforced concrete plates (2) and is connected with each reinforced concrete plate (2);
the cross beam (9) is provided with a first connecting hole (91), and the reinforced concrete slab (2) is provided with a second connecting hole (21) corresponding to the first connecting hole (91);
the foundation bolt (3) penetrates through the first connecting hole (91) and the second connecting hole (21), the first nut (4) is in threaded connection with a first extending end (31) of the foundation bolt (3), and the second nut (5) is in threaded connection with a second extending end (32) of the foundation bolt (3).
2. The electric transmission line composite foundation for desert areas as claimed in claim 1, wherein the opposite sides of two adjacent reinforced concrete slabs (2) are in contact.
3. The power transmission line composite foundation for desert areas as claimed in claim 1 or 2,
a plurality of first main ribs (11) are embedded in the side wall of the open caisson (1), and each first main rib (11) is provided with a first extending part (111) arranged outside the side wall of the open caisson (1);
the reinforced concrete slab (2) is provided with a plurality of third connecting holes (22), and the first extending parts (111) of the first main reinforcements (11) correspondingly penetrate through the third connecting holes (22) one by one and are in threaded connection with third nuts (6).
4. The power transmission line composite foundation for desert areas as claimed in claim 1 or 2,
a plurality of second main ribs (12) are embedded in the side wall of the open caisson (1), and each second main rib (12) is provided with a second extending part (121) which is arranged outside the side wall of the open caisson (1);
the cross beam (9) is provided with a plurality of fourth connecting holes (92), and the reinforced concrete slab (2) is provided with fifth connecting holes (23) corresponding to the fourth connecting holes (92);
and second extending parts (121) of the second main ribs (12) are correspondingly arranged in the fourth connecting holes (92) and the fifth connecting holes (23) in a penetrating manner and are in threaded connection with fourth nuts (7).
5. The power transmission line composite foundation for desert areas as claimed in claim 1 or 2, further comprising: a backing plate (8); wherein the content of the first and second substances,
the backing plate (8) is arranged between the reinforced concrete slab (2) and the first nut (4); the backing plate (8) is provided with a sixth connecting hole (81) corresponding to the second connecting hole (21); the foundation bolt (3) penetrates through the sixth connecting hole (81).
6. The power transmission line composite foundation for desert areas as claimed in claim 1 or 2, wherein the cross beams (9) comprise a reinforcement frame and concrete poured on the reinforcement frame, wherein,
the rib frame comprises a plurality of main ribs and stirrups, wherein the main ribs are arranged side by side, and each main rib is connected through the stirrups.
7. The power transmission line composite foundation for desert areas as claimed in claim 1, wherein the number of the anchor bolts (3) is plural; and the foundation bolts (3) are arranged around the center of the cross beam (9) in a square shape.
8. The power transmission line composite foundation for desert areas as claimed in claim 3, wherein each of the first main ribs (11) is provided with a third protruding part (112) disposed outside the side wall of the open caisson (1).
9. The power transmission line composite foundation for desert areas as claimed in claim 4, wherein each of the second main ribs (12) is provided with a fourth protrusion (122) placed outside the side wall of the open caisson (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610423324.5A CN106088133B (en) | 2016-06-15 | 2016-06-15 | Power transmission line composite foundation for desert area |
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| CN201610423324.5A CN106088133B (en) | 2016-06-15 | 2016-06-15 | Power transmission line composite foundation for desert area |
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| CN107893427A (en) * | 2017-12-13 | 2018-04-10 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of prefabricated assembled cored slab column foundation for transmission line of electricity |
| CN108301433A (en) * | 2018-01-29 | 2018-07-20 | 中国电力科学研究院有限公司 | A kind of composite foundation and construction method of shaft tower |
| CN109024606A (en) * | 2018-06-28 | 2018-12-18 | 中铁建大桥工程局集团第五工程有限公司 | Sandy land band catenary mast foundation ditch construction method |
| CN109826224A (en) * | 2019-03-08 | 2019-05-31 | 中国能源建设集团安徽省电力设计院有限公司 | A kind of sinking well protection wall digging foundation and its construction method for desert region iron tower of power transmission line |
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| SU740900A1 (en) * | 1977-05-06 | 1980-06-15 | Всесоюзный Ордена Ленина Проектно- Изыскательский И Научно-Исследовательский Институт "Гидропроект" Им. С.Я.Жука | Floating foundation for power-transmission line mast and method of adjusting its position |
| CN201809779U (en) * | 2010-10-13 | 2011-04-27 | 河南省电力勘测设计院 | Open caisson foundation of power transmission line iron tower |
| CN103255752B (en) * | 2012-02-16 | 2016-03-30 | 珠海强光海洋工程有限公司 | Support the buoyant support fixed platform of offshore wind turbine, marine works |
| CN105350561B (en) * | 2015-10-21 | 2018-10-23 | 中国电力科学研究院 | A kind of miniature well foundation of assembled for soft clay area power transmission tower |
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| CN106088133A (en) | 2016-11-09 |
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