CN104164888A - Concrete deformation-resistant foundation for ultra-high voltage power transmission steel pylon in coal mining area - Google Patents

Concrete deformation-resistant foundation for ultra-high voltage power transmission steel pylon in coal mining area Download PDF

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Publication number
CN104164888A
CN104164888A CN201410326938.2A CN201410326938A CN104164888A CN 104164888 A CN104164888 A CN 104164888A CN 201410326938 A CN201410326938 A CN 201410326938A CN 104164888 A CN104164888 A CN 104164888A
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CN
China
Prior art keywords
layer
concrete
plate
sliding layer
steel tower
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410326938.2A
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Chinese (zh)
Inventor
袁广林
陈志梅
舒前进
王永安
贾雷亮
王慧刚
王强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China University of Mining and Technology CUMT
State Grid Corp of China SGCC
State Grid Shanxi Electric Power Co Ltd
Original Assignee
China University of Mining and Technology CUMT
State Grid Corp of China SGCC
State Grid Shanxi Electric Power Co Ltd
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Filing date
Publication date
Application filed by China University of Mining and Technology CUMT, State Grid Corp of China SGCC, State Grid Shanxi Electric Power Co Ltd filed Critical China University of Mining and Technology CUMT
Priority to CN201410326938.2A priority Critical patent/CN104164888A/en
Publication of CN104164888A publication Critical patent/CN104164888A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a concrete deformation-resistant foundation for an ultra-high voltage power transmission steel pylon in the coal mining area and belongs to the technical field of steel pylon foundations of ultra-high voltage power transmission lines. The concrete deformation-resistant foundation comprises a steel pylon frame (1) and an upper-layer concrete slab (4), wherein an independent foundation (2) is arranged under supporting legs of the steel pylon frame (1), an upper sliding layer (3) is arranged on the upper-layer concrete slab (4), and the independent foundation (2) is arranged on the upper sliding layer (3). The concrete deformation-resistant foundation further comprises a lower-layer concrete slab (7), wherein an inter-slab sliding layer (5) is arranged between the upper-layer concrete slab (4) and the lower-layer concrete slab (7), and a bottom sliding layer (8) is arranged between the lower-layer concrete slab (7) and the foundation. By means of the concrete deformation-resistant foundation for the ultra-high voltage power transmission steel pylon in the coal mining area, rigidness and integrality of the foundation are improved greatly, surface deformation resistance capacity of the foundation is improved, effect of surface deformation on the power transmission steel pylon in the mining area is reduced, deformation resistance is high, and adverse effect of surface deformation on the steel pylon is reduced effectively.

Description

Minery UHV transmission steel tower agent on crack resistance of concrete distortion basis, a kind of colliery
Technical field
The present invention relates to a kind of agent on crack resistance of concrete distortion basis, specifically minery UHV transmission steel tower agent on crack resistance of concrete distortion in a kind of colliery is basic, belongs to the iron tower foundation technical field of UHV transmission line.
Background technology
In recent years, along with a large amount of construction of near coal-mine power plant and the development of electrical network, increasing transmission line of electricity need be through colliery minery; Meanwhile, along with the expansion of underground mining scope, increasing colliery need to cut coal under extra high voltage network, and the safety of extra high voltage network is caused to serious threat.Therefore, carried out in recent years the research on minery resistance to deformation basis, colliery, proposed the composite protective plate base of resistance to deformation, to guaranteeing that the safety of high-voltage transmission line pole tower has important value.
But, fast development along with UHV TRANSMISSION LINES IN CHINA, requirement to its safety is also more and more higher, particularly for the very large and complicated place of distortion, earth's surface, in the situation that the distortion of torsional deformation, horizontal shear is very large, study the Novel anti-deformation basis that a kind of non-deformability is strong, to guaranteeing that the safety of UHV transmission line shaft tower has great importance.
Summary of the invention
The problem existing for above-mentioned prior art, the invention provides minery UHV transmission steel tower agent on crack resistance of concrete distortion basis, a kind of colliery, non-deformability is strong, can effectively reduce the impact of minery earth's surface distortion on top electric power pylon, guarantee the safety of UHV transmission line shaft tower in the deformation process of earth's surface, reliability is high.
For solving the problems of the technologies described above, minery UHV transmission steel tower agent on crack resistance of concrete distortion basis, a kind of colliery of the present invention, comprise steel tower pylon and upper strata concrete slab, the leg of described steel tower pylon has single footing, described upper strata concrete slab is provided with top sliding layer, and described single footing is arranged on the sliding layer of top; Also comprise lower-layer concrete plate, between described upper strata concrete slab and lower-layer concrete plate, be provided with sliding layer between plate, between described lower-layer concrete plate and ground, be provided with basal sliding layer.
Further, the thickness of upper strata concrete slab is 200mm~400mm, and the thickness of lower-layer concrete plate is 100mm~300mm.
Further, lower-layer concrete plate is provided with deformation joint along two diagonal, and the width of deformation joint is 50mm~100mm.
Further, on deformation joint, be covered with the tin plate cover plate that width is not less than wide 3 times of seam, by two deformation joints, along diagonal, be divided into four leg-of-mutton concrete slabs, under the horizontal metamorphosis in earth's surface, can produce and relatively move to each other, even if distortion very large this plate in earth's surface is damaged, also can not affect the work on basis, top.
Further, between top sliding layer, plate sliding layer and basal sliding layer by layer of sand and on asphalt felt form.
Further, in the sliding layer of top, the thickness of layer of sand is 50mm~100mm, and between plate, in sliding layer, the thickness of layer of sand is not less than 50mm, and in basal sliding layer, the thickness of layer of sand is not less than 200mm.
Further, single footing is straight column type concrete foundation.
Compared with prior art, the present invention has the following advantages:
1. the present invention is provided with two-layer concrete slab, has greatly increased basic rigidity and globality, has improved whole non-deformability;
2. between concrete of the present invention single footing and upper strata concrete slab, between upper strata concrete slab and lower-layer concrete plate and be provided with layer of sand sliding layer between lower-layer concrete plate and ground, further reduced the impact of earth's surface horizontal distortion on superstructure.
3. lower-layer concrete plate of the present invention is provided with deformation joint along two diagonal; Lower-layer concrete plate is divided into four triangles by two deformation joints along diagonal, under the horizontal metamorphosis in earth's surface, can produce and relatively move to each other, even if earth's surface distortion causes very greatly this plate to be damaged, also can not affect the work on basis, top, further improve the ability of basic opposing earth's surface distortion, reduced the impact of earth's surface distortion on minery electric power pylon;
4. resistance capacity to deformation of the present invention is strong, can effectively reduce the adverse effect of earth's surface distortion to steel tower, and simple in structure, easy construction, cost is low, is applicable to earth's surface distortion very large, the UHV transmission steel tower in the situation that especially earth's surface distortion and horizontal shear distortion are very large.
Accompanying drawing explanation
Fig. 1 is profile of the present invention;
Fig. 2 is lower-layer concrete board plane figure of the present invention.
In figure: 1. steel tower pylon, 2. single footing, 3. top sliding layer, 4. upper strata concrete slab, 5. sliding layer between plate, 6. tin plate cover plate, 7. lower-layer concrete plate, 8. basal sliding layer, 9. deformation joint.
The specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As depicted in figs. 1 and 2, a kind of colliery of the present invention minery UHV transmission steel tower agent on crack resistance of concrete distortion basis, is comprised of steel tower pylon 1, single footing 2 and upper and lower layer concrete plate 4,7; Described upper strata concrete slab 4 is provided with top sliding layer 3, and described single footing 2 is arranged on top sliding layer 3, be positioned at a underfooting of steel tower pylon 1; Described single footing 2 is straight column type concrete foundation; Between described upper strata concrete slab 4 and lower-layer concrete plate 7, be provided with sliding layer 5 between plate, between described lower-layer concrete plate 7 and ground, be provided with basal sliding layer 8; Between single footing 2 and upper strata concrete slab 4, between upper strata concrete slab 4 and lower-layer concrete plate 7 and be provided with layer of sand sliding layer between lower-layer concrete plate and ground, further reduced the impact of earth's surface horizontal distortion on superstructure.
As improvement of the present invention, the thickness of described upper strata concrete slab 4 is 200mm~400mm, and the thickness of lower-layer concrete plate 7 is 100mm~300mm.
As improvement of the present invention, described lower-layer concrete plate 7 is provided with along two diagonal the deformation joint 9 that width is 50mm~100mm; By two deformation joints 9, along diagonal, be divided into four leg-of-mutton concrete slabs, under the horizontal metamorphosis in earth's surface, can produce and relatively move to each other, even if earth's surface distortion causes very greatly this plate to be damaged, also can not affect the work on basis, top.
As the present invention, further improve, on described deformation joint 9, be covered with the tin plate cover plate 6 that width is not less than wide 3 times of seam, prevent that between plate, the sand in sliding layer 5 falls into deformation joint 9, affect the deformation performance of lower-layer concrete plate 7.
As the present invention, further improve, between described top sliding layer 3, plate sliding layer 5 and basal sliding layer 8 by layer of sand and on asphalt felt form, the layer of sand in sliding layer will further reduce the impact of earth's surface horizontal distortion on superstructure; Layer of sand in basal sliding layer 8 not only can reduce vertical surface deformation, reduces the impact on iron tower structure of earth's surface curvature and torsional deformation, also can reduce earth's surface horizontal stretch, compression and the impact of horizontal shear distortion on iron tower structure.
As the present invention, further improve, in the sliding layer 3 of described top, the thickness of layer of sand is 50mm~100mm, and between plate, in sliding layer 5, the thickness of layer of sand is not less than 50mm, and in basal sliding layer 8, the thickness of layer of sand is not less than 200mm.
Construction sequence is as follows:
(1) according to designing requirement, foundation dredging is arrived to design elevation, by ground leveling compacting;
(2) on the ground of leveling compacting, lay bottom layer of sand the leveling that a layer thickness is not less than 200mm; Then lay layers of asphalt malthoid, form basal sliding layer 8;
(3) build lower-layer concrete plate 7, thickness is 200mm, and stays and establish deformation joint 9 in two diagonals of this plate, and deformation joint 9 width are 50mm, any material of not filling in envelope;
(4) on lower-layer concrete plate 7, on reserved deformation joint 9, cover tin plate cover plate 6, the width of tin plate cover plate 6 is not less than 3 times of deformation joint 9 width, and the present embodiment is 200mm;
(5) layer of sand that laying depth is 50mm on lower-layer concrete plate 7 and tin plate cover plate 6 leveling, then lay layers of asphalt malthoid, and between composing plate, sliding layer 5;
(6) build upper strata concrete slab 4, thickness is 300mm;
(7) layer of sand that single footing 2 position laying depths are 50mm on upper strata concrete slab 4 leveling, then lay layers of asphalt malthoid, forms top sliding layer 3;
(8) build single footing 2;
(9) steel tower pylon 1 is installed.
The present invention has increased basic rigidity and globality greatly, has improved the ability of basic opposing earth's surface distortion, has effectively reduced the impact of minery earth's surface distortion on top electric power pylon, reliability, safe, and simple in structure, easy construction, cost is low.

Claims (7)

1. a colliery minery UHV transmission steel tower agent on crack resistance of concrete distortion is basic, comprise steel tower pylon (1) and upper strata concrete slab (4), the leg of described steel tower pylon (1) has single footing (2), described upper strata concrete slab (4) is provided with top sliding layer (3), and described single footing (2) are arranged on top sliding layer (3); It is characterized in that, also comprise lower-layer concrete plate (7), between described upper strata concrete slab (4) and lower-layer concrete plate (7), be provided with sliding layer between plate (5), between described lower-layer concrete plate (7) and ground, be provided with basal sliding layer (8).
2. a kind of colliery according to claim 1 minery UHV transmission steel tower agent on crack resistance of concrete distortion basis, is characterized in that, the thickness of described upper strata concrete slab (4) is 200mm~400mm, and the thickness of lower-layer concrete plate (7) is 100mm~300mm.
3. a kind of colliery according to claim 1 and 2 minery UHV transmission steel tower agent on crack resistance of concrete distortion basis, is characterized in that, described lower-layer concrete plate (7) is provided with the deformation joint that width is 50mm~100mm (9) along two diagonal.
4. a kind of colliery according to claim 3 minery UHV transmission steel tower agent on crack resistance of concrete distortion basis, is characterized in that, is covered with the tin plate cover plate (6) that width is not less than wide 3 times of seam on described deformation joint (9).
5. minery UHV transmission steel tower agent on crack resistance of concrete distortion in a kind of colliery according to claim 1 and 2 is basic, it is characterized in that, between described top sliding layer (3), plate sliding layer (5) and basal sliding layer (8) by layer of sand and on asphalt felt form.
6. minery UHV transmission steel tower agent on crack resistance of concrete distortion in a kind of colliery according to claim 5 is basic, it is characterized in that, in described top sliding layer (3), the thickness of layer of sand is 50mm~100mm, in sliding layer between plate (5), the thickness of layer of sand is not less than 50mm, and in basal sliding layer (8), the thickness of layer of sand is not less than 200mm.
7. colliery according to claim 1 minery UHV transmission steel tower agent on crack resistance of concrete distortion basis, is characterized in that, described single footing (2) are straight column type concrete foundation.
CN201410326938.2A 2014-09-24 2014-09-24 Concrete deformation-resistant foundation for ultra-high voltage power transmission steel pylon in coal mining area Pending CN104164888A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105780804A (en) * 2016-03-26 2016-07-20 山东华安铁塔有限公司 Extra-high voltage power transmission iron tower foundation applicable to hilly regions
CN105781088A (en) * 2016-05-03 2016-07-20 泰兴市第建筑安装工程有限公司 Floor type scaffold of ultrahigh chemical tower

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105780804A (en) * 2016-03-26 2016-07-20 山东华安铁塔有限公司 Extra-high voltage power transmission iron tower foundation applicable to hilly regions
CN105781088A (en) * 2016-05-03 2016-07-20 泰兴市第建筑安装工程有限公司 Floor type scaffold of ultrahigh chemical tower

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Application publication date: 20141126