CN112854290A - Construction method for reinforcing transformer substation equipment foundation - Google Patents
Construction method for reinforcing transformer substation equipment foundation Download PDFInfo
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- CN112854290A CN112854290A CN202110056920.5A CN202110056920A CN112854290A CN 112854290 A CN112854290 A CN 112854290A CN 202110056920 A CN202110056920 A CN 202110056920A CN 112854290 A CN112854290 A CN 112854290A
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- foundation
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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
- E02D27/44—Foundations for machines, engines or ordnance
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses a construction method for reinforcing a substation equipment foundation, which comprises the following construction steps: a. excavating the ground until the original foundation is exposed, cleaning the surface of the ground, and leveling the ground within the reinforcing range of the periphery of the foundation; punching the side face of the original foundation which needs to be amplified and reinforced, fixing the anchor rod on the original foundation, and then injecting an inorganic injection material into the hole to ensure that the hole is dense; mounting channel steel on the anchor rod, fixing the channel steel on the original foundation through the anchor rod by using a nut, and then injecting an inorganic injection material between the channel steel and the original foundation to ensure compactness; arranging a reinforcing mesh for reinforcing the foundation part on the leveled ground, wherein the reinforcing mesh is fixed on the original foundation through welding with a channel steel flange; and pouring concrete to a specified elevation for reinforcement, and backfilling the foundation soil after the maintenance reaches a specified age. The advantages are that: the invention is connected with the original foundation to form an integral stress, and the bearing capacity of the foundation is increased.
Description
Technical Field
The invention relates to a construction method for reinforcing a substation equipment foundation, which is suitable for integrally reinforcing the equipment foundation after the substation equipment is subjected to capacity expansion and load increase and belongs to the field of civil and architectural engineering.
Background
With the rapid development of domestic economy, the loads of industrial electricity and domestic electricity of residents are rapidly increased, and the construction and capacity allocation of the transformer substation cannot meet the electricity demand of the residents. There are two general ways to solve the above contradiction, one is to increase the speed and force of the new substation, and the other is to expand the capacity based on the original substation. Partial transformer substations in cities in China are built in core positions of commercial centers, financial centers and the like, if a mode of increasing new transformer substations needs to occupy more land resources, a mode of expanding capacity on the basis of original transformer substations is a more reasonable mode.
The expansion on the basis of the original transformer substation causes that the foundation of the original equipment needs to be reinforced due to the reasons that the bearing capacity of the foundation is not met or the settlement is too large and the like. Meanwhile, the foundation reinforcement of the transformer substation equipment has the following restrictions that firstly, the equipment operates in an electric field area of a transformer substation, the safety requirement is extremely high, and the construction operation height is limited; secondly, various existing construction machines cannot enter the site for construction due to the limitation of safe construction distance; thirdly, the original foundation and foundation cannot be disturbed; fourthly, the basic distribution quantity is large and wide, and the dispersion is independent.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a construction method for reinforcing a substation equipment foundation.
In order to achieve the purpose, the invention adopts the technical scheme that: a construction method for reinforcing a substation equipment foundation comprises the following construction steps:
a. excavating foundation soil: excavating the ground until the original foundation is exposed, cleaning the surface of the ground, and leveling the ground within the reinforcing range of the periphery of the foundation;
b. installing an anchor rod: punching the side face of the original foundation which needs to be amplified and reinforced, fixing the anchor rod on the original foundation, and then injecting an inorganic injection material into the hole to ensure that the hole is dense;
c. installing channel steel: mounting channel steel on the anchor rod, fixing the channel steel on the original foundation through the anchor rod by using a nut, and then injecting an inorganic injection material between the channel steel and the original foundation to ensure compactness;
d. welding a reinforcing mesh: arranging a reinforcing mesh for reinforcing the foundation part on the leveled ground, wherein the reinforcing mesh is fixed on the original foundation through welding with a channel steel flange;
e. pouring concrete: and pouring concrete to a specified elevation for reinforcement, and backfilling the foundation soil after the maintenance reaches a specified age.
The anchor rod is made of fiber composite reinforced materials.
And e, adopting basalt fiber reinforced concrete as the concrete in the step e.
Compared with the prior art, the invention has the advantages that:
1. according to the invention, the original stress form of the foundation is not changed, the channel steel and the anchor rod are tightly connected with the foundation, the transmission of force is ensured through the bolt and bolt action of the anchor rod, meanwhile, the fiber reinforced composite material anchor rod has higher rigidity, and basalt fiber reinforced concrete with better mechanical property is adopted, so that the integrity of a foundation reinforcing part and the original part is ensured, and the effective transmission of load is ensured;
2. the anchor rods are adopted to connect the side surfaces of the foundation, so that the foundation does not need to be excavated to a position below the elevation of the foundation, and the disturbance to foundation soil and peripheral facilities is small;
3. the non-conductive fiber composite reinforced material is adopted, so that the construction safety of a live plant area is ensured, the construction is convenient and simple, large-scale equipment is not needed, and the construction period is short.
Drawings
FIG. 1 is a schematic structural view of a masonry structure building foundation reinforced by the present invention
Detailed Description
The following description is only a preferred embodiment of the present invention, and does not limit the scope of the present invention.
Example, see figure 1: a construction method for reinforcing a substation equipment foundation comprises the following construction steps:
a. excavating foundation soil: detecting and evaluating the current situation of the original equipment foundation, and determining the foundation size of the foundation reinforcement part by referring to corresponding specifications according to the conditions of the settlement degree and the stress condition of the foundation 1, the current situation of the original foundation 2 and the like; and excavating the ground until the original foundation 2 is exposed, cleaning the surface of the ground, and leveling the ground within the reinforcing range of the periphery of the foundation.
b. Installing an anchor rod: calculating and determining the installation positions and the number of the anchor rods 3 according to the conditions such as the foundation condition, the stress condition, the material size, the construction requirement and the like; punching holes on the side faces of the original foundation 2 which needs to be amplified and reinforced, fixing an anchor rod 3 made of fiber composite reinforced materials on the original foundation 2, and then injecting inorganic injection materials into the holes to ensure that the holes are compact; in order to reduce the disturbance to the foundation, the holes are preferably arranged in a staggered manner.
c. Installing channel steel: processing channel steel 4 according to the length of the original foundation 2 and the position of the hole, wherein the channel steel 4 is provided with a reserved hole for allowing the anchor rod 3 to penetrate through the installation position and the number; then pass through the nut with channel-section steel 4 and fix on original basis 2 through stock 3, inject into inorganic material 9 of irritating again between channel-section steel 4 and original basis 2 to guarantee closely knit, with the transmission of assurance power.
d. Welding a reinforcing mesh: and arranging a reinforcing mesh 5 for reinforcing the foundation part on the leveled ground, wherein the reinforcing mesh 5 is fixed on the original foundation 2 by welding with the flange of the channel steel 4.
e. Pouring concrete: and (3) pouring concrete 6 to a specified elevation, reinforcing, namely adopting basalt fiber reinforced concrete for the concrete 6, and backfilling the foundation soil 7 to the ground to the specified elevation after leveling maintenance to a specified age.
Claims (3)
1. A construction method for reinforcing a substation equipment foundation is characterized by comprising the following steps: the construction steps are as follows:
a. excavating foundation soil: excavating the ground until the original foundation is exposed, cleaning the surface of the ground, and leveling the ground within the reinforcing range of the periphery of the foundation;
b. installing an anchor rod: punching the side face of the original foundation which needs to be amplified and reinforced, fixing the anchor rod on the original foundation, and then injecting an inorganic injection material into the hole to ensure that the hole is dense;
c. installing channel steel: mounting channel steel on the anchor rod, fixing the channel steel on the original foundation through the anchor rod by using a nut, and then injecting an inorganic injection material between the channel steel and the original foundation to ensure compactness;
d. welding a reinforcing mesh: arranging a reinforcing mesh for reinforcing the foundation part on the leveled ground, wherein the reinforcing mesh is fixed on the original foundation through welding with a channel steel flange;
e. pouring concrete: and pouring concrete to a specified elevation for reinforcement, and backfilling the foundation soil after the maintenance reaches a specified age.
2. The method of consolidating a substation equipment foundation of claim 1, wherein: the anchor rod is made of fiber composite reinforced materials.
3. The construction method for reinforcing the substation equipment foundation according to claim 1, wherein: and e, adopting basalt fiber reinforced concrete as the concrete in the step e.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110056920.5A CN112854290A (en) | 2021-01-15 | 2021-01-15 | Construction method for reinforcing transformer substation equipment foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110056920.5A CN112854290A (en) | 2021-01-15 | 2021-01-15 | Construction method for reinforcing transformer substation equipment foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112854290A true CN112854290A (en) | 2021-05-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110056920.5A Pending CN112854290A (en) | 2021-01-15 | 2021-01-15 | Construction method for reinforcing transformer substation equipment foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112854290A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101250886A (en) * | 2008-04-09 | 2008-08-27 | 武汉大学 | Method for reinforcing masonry structure building base |
| CN104532853A (en) * | 2014-12-30 | 2015-04-22 | 武汉中力岩土工程有限公司 | Deep foundation pit supporting method and system characterized by steel reinforced cement-soil piles, bolts easy to detach and automatic monitoring and early warning |
| CN105604100A (en) * | 2016-01-04 | 2016-05-25 | 青岛理工大学 | External anchoring method for non-metal anti-floating anchor rod |
| CN109458196A (en) * | 2019-01-15 | 2019-03-12 | 西南交通大学 | A kind of environment-friendlydurable durable single shell lining structure suitable for Support System in Soft Rock Tunnels |
| CN209212273U (en) * | 2018-12-22 | 2019-08-06 | 山东科技大学 | A kind of basalt fibre reinforcing body anchor pole |
| CN111537351A (en) * | 2020-06-28 | 2020-08-14 | 青岛理工大学 | Method for testing bearing performance of anchor rod under coupling action of load and erosion environment |
| CN111962545A (en) * | 2020-08-10 | 2020-11-20 | 南京市园林规划设计院有限责任公司 | Soft foundation treatment method for compaction foundation soil with FRP (fiber reinforced plastic) wood piles stuck inside |
-
2021
- 2021-01-15 CN CN202110056920.5A patent/CN112854290A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101250886A (en) * | 2008-04-09 | 2008-08-27 | 武汉大学 | Method for reinforcing masonry structure building base |
| CN104532853A (en) * | 2014-12-30 | 2015-04-22 | 武汉中力岩土工程有限公司 | Deep foundation pit supporting method and system characterized by steel reinforced cement-soil piles, bolts easy to detach and automatic monitoring and early warning |
| CN105604100A (en) * | 2016-01-04 | 2016-05-25 | 青岛理工大学 | External anchoring method for non-metal anti-floating anchor rod |
| CN209212273U (en) * | 2018-12-22 | 2019-08-06 | 山东科技大学 | A kind of basalt fibre reinforcing body anchor pole |
| CN109458196A (en) * | 2019-01-15 | 2019-03-12 | 西南交通大学 | A kind of environment-friendlydurable durable single shell lining structure suitable for Support System in Soft Rock Tunnels |
| CN111537351A (en) * | 2020-06-28 | 2020-08-14 | 青岛理工大学 | Method for testing bearing performance of anchor rod under coupling action of load and erosion environment |
| CN111962545A (en) * | 2020-08-10 | 2020-11-20 | 南京市园林规划设计院有限责任公司 | Soft foundation treatment method for compaction foundation soil with FRP (fiber reinforced plastic) wood piles stuck inside |
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Application publication date: 20210528 |