CN110924425A - Iron tower foundation construction method for river channel in winter - Google Patents
Iron tower foundation construction method for river channel in winter Download PDFInfo
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- CN110924425A CN110924425A CN201911091945.8A CN201911091945A CN110924425A CN 110924425 A CN110924425 A CN 110924425A CN 201911091945 A CN201911091945 A CN 201911091945A CN 110924425 A CN110924425 A CN 110924425A
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- iron tower
- tower foundation
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- water retaining
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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
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/10—Restraining of underground water by lowering level of ground water
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/18—Restraining of underground water by damming or interrupting the passage of underground water by making use of sealing aprons, e.g. diaphragms made from bituminous or clay material
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0007—Production methods using a mold
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Foundations (AREA)
Abstract
The construction method of the iron tower foundation for the river channel in winter comprises the following specific steps: excavating a square iron tower foundation pit in a pre-construction site in a river channel; placing a square water retaining mold with the height higher than the water surface in the iron tower foundation pit; discharging water in the square water retaining die to the outside of the square water retaining die by using a water pump; putting the step-shaped reinforcement cage which is bound in advance into a square water retaining mold; a step-shaped pouring mold is arranged outside the step-shaped reinforcement cage; pouring concrete in the stepped pouring mould; forming an iron tower foundation after naturally curing the concrete for more than 24 hours, removing the stepped pouring template, and sequentially wrapping a plastic film, a straw mat and a non-drip film outside the iron tower foundation from inside to outside; and naturally curing the concrete for more than 21 days, and removing the plastic film, the straw curtain and the non-drip film to finish the operation. The method can greatly reduce the work amount of the iron tower foundation, shorten the construction period of the iron tower foundation and reduce the construction cost; and the base health preserving temperature of the iron tower is stable in winter, the health preserving effect is improved, and the health preserving cost is reduced.
Description
Technical Field
The invention relates to a construction method of an iron tower foundation, in particular to a construction method of an iron tower foundation for a river channel in winter.
Background
The iron tower foundation is an important component of a power grid, the quality of the iron tower foundation directly determines the quality and the operation reliability of power grid construction, and the correct organization of the iron tower foundation construction is the guarantee of the economic benefits of power grid engineering construction.
When the power department transmits power lines across rivers, particularly when the river surface is wide, part of iron tower foundations are inevitably built in the river channel. When the traditional iron tower foundation is constructed in a riverway, a temporary retaining dam is constructed on the upstream of a pre-construction site of the riverway, a foundation pit is dug out on the pre-construction site, and concrete is poured to form the iron tower foundation. The method for constructing the retaining dam construction iron tower foundation has the advantages of large engineering quantity, long construction iron tower foundation period and high construction cost. In winter, in order to ensure good health maintenance of the iron tower foundation, a shed building raw furnace is needed to be arranged beside the iron tower foundation for heating, the temperature of a health maintenance mode of the shed building raw furnace for heating is unstable, the health maintenance effect of the iron tower foundation is poor, and the health maintenance cost is high.
Disclosure of Invention
The invention aims to solve the technical problems and provides a construction method of an iron tower foundation for a river channel in winter, which can greatly reduce the engineering quantity of the iron tower foundation, shorten the construction period of the iron tower foundation and reduce the construction cost; and the base health preserving temperature of the iron tower is stable in winter, the health preserving effect is improved, and the health preserving cost is reduced.
The technical solution of the invention is as follows:
the construction method of the iron tower foundation for the river channel in winter is characterized by comprising the following specific steps:
1. excavation foundation pit
Excavating a square iron tower foundation pit in a pre-construction site in a river channel;
2. place manger plate mould
Putting a square water retaining mold which is formed by splicing four mold plates in pairs and has the height higher than the water surface into the iron tower foundation pit;
3. drainage in water retaining die
Discharging water in the square water retaining die to the outside of the square water retaining die by using a water pump;
4. steel bar placing cage
Putting the step-shaped reinforcement cage which is bound in advance into a square water retaining mold;
5. placing and pouring mold
A step-shaped pouring mold is arranged outside the step-shaped reinforcement cage;
6. pouring foundation
Pouring concrete in the stepped pouring mould;
7. concrete antifreezing
Forming an iron tower foundation after naturally curing the concrete for more than 24 hours, removing the stepped pouring template, and sequentially wrapping a plastic film, a straw mat and a non-drip film outside the iron tower foundation from inside to outside;
8. concrete health preserving
And naturally curing the concrete for more than 21 days, and removing the plastic film, the straw curtain and the non-drip film to finish the operation.
Preferably, the concrete is cast by a vibrator.
And further preferably, in the process of installing the stepped casting mould, the distance between the edge of the stepped steel reinforcement cage and the inner wall of the stepped casting mould is ensured to be more than 5 cm.
The invention has the beneficial effects that:
1. because put into the square manger plate mould that exceeds the surface of water in the iron tower foundation pit to use the water pump to discharge outside the square manger plate mould with the water in the square manger plate mould, establish anhydrous construction condition for pouring the iron tower basis, replaced the traditional construction mode of building the manger plate dam, simple structure, convenient operation, great reduction iron tower basis engineering volume, shortened iron tower basis construction cycle, reduced construction cost.
2. Because the plastic film, the straw curtain and the non-drop film are wrapped outside the iron tower foundation, the iron tower foundation is subjected to cold-proof and heat preservation, the iron tower foundation is ensured to be in a stable heat preservation temperature, the health preserving effect is good, and the health preserving cost is reduced.
Drawings
FIG. 1 is a schematic illustration of the construction of the concrete placement step of the present invention;
FIG. 2 is a schematic diagram of the construction of the present invention for wrapping plastic film, straw mat and non-drip film;
in the figure: the method comprises the following steps of 1-square water retaining die, 2-step-shaped reinforcement cage, 3-step-shaped pouring die, 4-iron tower foundation, 5-plastic film, 6-straw curtain and 7-dripless film.
Detailed Description
As shown in fig. 1 and 2, the method for constructing the iron tower foundation of the river channel in winter comprises the following specific steps:
1. excavation foundation pit
Excavating a square iron tower foundation 4 pit in a pre-construction site in a river channel;
2. place manger plate mould
Putting a square water retaining mold 1 which is formed by splicing four mold plates in pairs and has a height higher than the water surface into the iron tower foundation 4 pit;
3. drainage in water retaining die
Water in the square water retaining die 1 is discharged out of the square water retaining die 1 by a water pump;
4. steel bar placing cage
Putting the step-shaped reinforcement cage 2 bound in advance into a square water retaining mold 1;
5. placing and pouring mold
A step-shaped pouring mold 3 is arranged outside the step-shaped reinforcement cage, and meanwhile, the edge of the step-shaped reinforcement cage 2 is ensured to be 5cm away from the inner wall of the step-shaped pouring mold 3;
6. pouring foundation
Pouring concrete in the stepped pouring mould 3, and vibrating by using a vibrator;
7. concrete antifreezing
Forming an iron tower foundation 4 after the concrete is naturally cured for 24 hours, removing the stepped pouring mold 3, and sequentially wrapping a plastic film 5, a straw mat 6 and a non-drop film 7 outside the iron tower foundation 4 from inside to outside;
8. concrete health preserving
And naturally curing the concrete for 21 days, and removing the plastic film 5, the straw curtain 6 and the non-drip film 7 to finish the operation.
The above description is only exemplary of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The construction method of the iron tower foundation for the river channel in winter is characterized by comprising the following specific steps:
1) excavating foundation pit
Excavating a square iron tower foundation pit in a pre-construction site in a river channel;
2) place the water retaining die
Putting a square water retaining mold which is formed by splicing four mold plates in pairs and has the height higher than the water surface into the iron tower foundation pit;
3) drainage in water retaining mold
Discharging water in the square water retaining die to the outside of the square water retaining die by using a water pump;
4) placing reinforcement cage
Putting the step-shaped reinforcement cage which is bound in advance into a square water retaining mold;
5) placing and pouring mold
A step-shaped pouring mold is arranged outside the step-shaped reinforcement cage;
6) pouring of foundation
Pouring concrete in the stepped pouring mould;
7) concrete freeze protection
Forming an iron tower foundation after naturally curing the concrete for more than 24 hours, removing the stepped pouring template, and sequentially wrapping a plastic film, a straw mat and a non-drip film outside the iron tower foundation from inside to outside;
8) curing of concrete
And naturally curing the concrete for more than 21 days, and removing the plastic film, the straw curtain and the non-drip film to finish the operation.
2. The iron tower foundation construction method for the winter river according to claim 1, wherein: and vibrating by a vibrator in the concrete pouring process.
3. The iron tower foundation construction method for the winter river according to claim 1, wherein: and in the process of installing the stepped casting mould, the edge of the stepped reinforcement cage is ensured to be more than 5cm away from the inner wall of the stepped casting mould.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911091945.8A CN110924425A (en) | 2019-11-09 | 2019-11-09 | Iron tower foundation construction method for river channel in winter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911091945.8A CN110924425A (en) | 2019-11-09 | 2019-11-09 | Iron tower foundation construction method for river channel in winter |
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| Publication Number | Publication Date |
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| CN110924425A true CN110924425A (en) | 2020-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911091945.8A Pending CN110924425A (en) | 2019-11-09 | 2019-11-09 | Iron tower foundation construction method for river channel in winter |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111486060A (en) * | 2020-04-18 | 2020-08-04 | 天津科慧新能源科技发展有限公司 | Fan foundation recycling scheme |
| CN111764731A (en) * | 2020-07-10 | 2020-10-13 | 郭顺合 | Tower installation and reinforcement construction method based on 5G communication line |
| CN111877384A (en) * | 2020-08-06 | 2020-11-03 | 广州协安建设工程有限公司 | One-step forming construction method for stepped independent extension foundation |
| CN112411606A (en) * | 2020-12-14 | 2021-02-26 | 中能电力科技开发有限公司 | Marine anemometer tower foundation system in intertidal zone area |
| CN115928785A (en) * | 2022-12-20 | 2023-04-07 | 重庆大学 | Wind power stepped assembly type foundation suitable for mountain region and assembly method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004084336A (en) * | 2002-08-27 | 2004-03-18 | Chikoji Gakuen | Method for constructing foundation of oceanic wind power generator and underground structure of oceanic wind power generator |
| CN105201009A (en) * | 2015-09-12 | 2015-12-30 | 国网辽宁省电力有限公司锦州供电公司 | Tower foundation negative-pressure construction method for river channel |
-
2019
- 2019-11-09 CN CN201911091945.8A patent/CN110924425A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004084336A (en) * | 2002-08-27 | 2004-03-18 | Chikoji Gakuen | Method for constructing foundation of oceanic wind power generator and underground structure of oceanic wind power generator |
| CN105201009A (en) * | 2015-09-12 | 2015-12-30 | 国网辽宁省电力有限公司锦州供电公司 | Tower foundation negative-pressure construction method for river channel |
Non-Patent Citations (2)
| Title |
|---|
| 王春燕等: "《建筑工程计量与计价》", 31 January 2015, 西南交通大学出版社 * |
| 马清浩: "《水泥混凝土外加剂550问》", 30 November 2008, 中国建材工业出版社 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111486060A (en) * | 2020-04-18 | 2020-08-04 | 天津科慧新能源科技发展有限公司 | Fan foundation recycling scheme |
| CN111764731A (en) * | 2020-07-10 | 2020-10-13 | 郭顺合 | Tower installation and reinforcement construction method based on 5G communication line |
| CN111764731B (en) * | 2020-07-10 | 2021-07-09 | 北京华光浩阳科技有限公司 | Tower installation and reinforcement construction method based on 5G communication line |
| CN111877384A (en) * | 2020-08-06 | 2020-11-03 | 广州协安建设工程有限公司 | One-step forming construction method for stepped independent extension foundation |
| CN112411606A (en) * | 2020-12-14 | 2021-02-26 | 中能电力科技开发有限公司 | Marine anemometer tower foundation system in intertidal zone area |
| CN115928785A (en) * | 2022-12-20 | 2023-04-07 | 重庆大学 | Wind power stepped assembly type foundation suitable for mountain region and assembly method thereof |
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