CN110700649A - Construction method of buried transformer substation - Google Patents
Construction method of buried transformer substation Download PDFInfo
- Publication number
- CN110700649A CN110700649A CN201910845293.6A CN201910845293A CN110700649A CN 110700649 A CN110700649 A CN 110700649A CN 201910845293 A CN201910845293 A CN 201910845293A CN 110700649 A CN110700649 A CN 110700649A
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- China
- Prior art keywords
- transformer substation
- box body
- box
- supporting
- top plate
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- 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.)
- Granted
Links
- 238000010276 construction Methods 0.000 title claims abstract description 25
- 239000002689 soil Substances 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- FJMNNXLGOUYVHO-UHFFFAOYSA-N aluminum zinc Chemical compound [Al].[Zn] FJMNNXLGOUYVHO-UHFFFAOYSA-N 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000000945 filler Substances 0.000 description 3
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H5/00—Buildings or groups of buildings for industrial or agricultural purposes
- E04H5/02—Buildings or groups of buildings for industrial purposes, e.g. for power-plants or factories
- E04H5/04—Transformer houses; Substations or switchgear houses
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Foundations (AREA)
Abstract
The invention discloses a construction method of an underground transformer substation, which mainly comprises the following construction steps of digging a foundation pit according to the volume of a supporting box body, filling soil into the supporting box body after the supporting box body is placed stably, drawing out an outer vertical plate after the supporting box body is filled, vibrating and compacting a soil body in the supporting box body by using a vibrating rod, and tamping the soil body by using a tamping machine along the periphery of the outer part of a box transformer substation body. Has the advantages that: the construction method is suitable for soft and easily-collapsed construction environments under geological conditions such as soft soil, wet soil and the like, the inverted trapezoid is used as a supporting surface due to the fact that the vertical plate on the outer side is pulled out, supporting force of the box transformer substation body is enhanced, and running safety of equipment is guaranteed.
Description
Technical Field
The invention relates to the field of buried substations, in particular to a construction method of a buried substation.
Background
At present, box structures of buried substations are constructed by adopting an integral structure, a foundation pit needs to be dug during construction, and the box can be lifted into the foundation pit only after the side wall of the foundation pit and ground are subjected to spray anchor support.
Disclosure of Invention
The invention aims to solve the problems and provide a construction method of a buried transformer substation to solve the technical problems that the buried transformer substation in the prior art is low in construction efficiency and not suitable for poor geological conditions.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a construction method of a buried transformer substation, which is characterized by comprising the following steps: the buried transformer substation is of a box-type transformer substation structure and comprises a box-type transformer substation body with an inverted trapezoid cross section and supporting boxes symmetrically arranged on two sides of the box-type transformer substation body, wherein the box-type transformer substation body and the supporting boxes jointly form a cuboid box structure, the box-type transformer substation body and a top plate and a bottom plate of each supporting box are arranged in a shared integrated mode, an outer side vertical plate of each supporting box is connected with the top plate and the top plate to form a detachable structure, the upper end of the outer side vertical plate is higher than the top plate, a plurality of hoisting holes are formed in the outer side vertical plate higher than the top plate, and a plurality of; the construction steps are as follows:
1) excavating a foundation pit according to the size of the rectangular box body;
2) hoisting the rectangular box body by using hoisting equipment, and burying the rectangular box body in the foundation pit;
3) guiding the soil for digging the foundation pit into the supporting box body through the filling opening and filling the soil;
4) opening the detachable structure of the outer vertical plate and the top plate, and hoisting and extracting the outer vertical plate through hoisting equipment;
5) inserting a vibrating rod into the filling opening, and vibrating and compacting the soil in the supporting box body;
6) and (4) propelling and compacting around the box transformer body from near to far by using a compactor.
Further, after the step 5) is finished, sealing the filling opening by using a cover plate.
Furthermore, the outer side vertical plate of the supporting box body is in lap joint with the top plate through a folded edge, and the lap joint part is detachably connected with the through hole through the matching of a bolt and the through hole.
Furthermore, the bottom plate of the supporting box body is provided with water seepage holes, and graded broken stones can be introduced into the supporting box body through the filling port and filled in the steps.
Furthermore, two side plates of the box transformer substation body, namely the side edges of the inverted trapezoid, are made of aluminum-zinc-coated steel plates.
Has the advantages that:
1) the supporting box body plays a role in supporting and protecting the box transformer substation body in the initial construction stage;
2) the top plate and the bottom plate of the supporting box body are integrally arranged with the box transformer substation body, and after the filling is finished, the top plate and the bottom plate strengthen the support of the box transformer substation body and an underground soil body;
3) the section of the box transformer substation body is in an inverted trapezoid shape, and the two side edges of the inverted trapezoid shape improve the side edge supporting force of the box transformer substation body;
4) the outer side vertical plate of the supporting box body is detachably connected to better realize the filling and embedding of the periphery of the box transformer substation body, and the protruding structure at the upper part of the supporting box body is provided with a hoisting hole to meet the double requirements of integral hoisting of the box body and extraction of the outer side vertical plate;
5) by adopting the box body structure and the construction method, the construction efficiency of the buried transformer substation is greatly improved, and a constructor can directly lift and bury the box body after digging the foundation pit without supporting the foundation pit.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of construction steps;
fig. 2 is a front view of a buried substation;
FIG. 3 is an enlarged view of the connection of the outer riser to the top plate;
the reference numerals are explained below:
1. a box transformer substation body; 2. supporting the box body; 3. an outer vertical plate; 4. a filling opening; 5. a top plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
A buried transformer substation construction method is characterized in that the buried transformer substation is of a box-type transformer substation structure and comprises a box-type transformer substation body 1 with an inverted trapezoidal cross section and supporting box bodies 2 symmetrically arranged on two sides of the box-type transformer substation body 1, the box-type transformer substation body 1 and the supporting box bodies 2 jointly form a cuboid box body structure, a top plate and a bottom plate of the box-type transformer substation body 1 and the supporting box bodies 2 are arranged in a shared and integrated mode, an outer side vertical plate 3 of the supporting box body 2 is connected with the top plate and the top plate 5 to form a detachable structure, the upper end of the outer side vertical plate 3 is higher than the top plate 5, a plurality of hoisting holes are formed in the outer side vertical plate higher than the top plate 5; the construction steps are as follows:
1) excavating a foundation pit according to the size of the rectangular box body;
2) hoisting the rectangular box body by using hoisting equipment, and burying the rectangular box body in the foundation pit;
3) guiding the soil for digging the foundation pit into the supporting box body through the filling opening and filling the soil;
4) opening the detachable structure of the outer vertical plate and the top plate, and hoisting and extracting the outer vertical plate through hoisting equipment;
5) inserting a vibrating rod into the filling opening, and vibrating and compacting the soil in the supporting box body;
6) and (4) propelling and compacting around the box transformer body from near to far by using a compactor.
After construction is finished, soil serving as filler is compacted at two sides of the box transformer substation body 1 and is positioned between the top plate and the bottom plate, the top plate and the bottom plate strengthen the support for the box transformer substation body, the box body structure with the trapezoidal cross section is formed, the structure with the wide upper part and the narrow lower part can effectively prevent the box body from settling, the contact surface between the side surface of the box transformer substation body and the soil is increased, and the support stability is further increased,
and 5) after the step 5) is finished, sealing the filling opening by using a cover plate, and preventing surface water from permeating through the filling opening to cause unstable sedimentation of the filler.
The outer side vertical plate 2 of the supporting box body 1 is in folded joint with the top plate 5, and the folded joint is detachably connected with the through hole through the matching of a bolt and the through hole.
The bottom plate of the supporting box body is provided with water seepage holes, graded broken stones can be adopted in the step 3) to pass through the filling ports, the filling ports are guided into the supporting box body and filled with the crushed stones, the water permeability of the foundation can be enhanced through the graded broken stones, and the stability of the filler support is further ensured through the arrangement of the water seepage holes.
Two side plates, namely the inverted trapezoidal side edges of the box transformer substation body 1 are made of aluminum-zinc-coated steel plates in a humid environment.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (5)
1. A construction method of a buried transformer substation is characterized in that: the buried transformer substation is of a box-type transformer substation structure and comprises a box-type transformer substation body (1) with an inverted trapezoidal cross section and supporting boxes (2) symmetrically arranged on two sides of the box-type transformer substation body (1), wherein the box-type transformer substation body (1) and the supporting boxes (2) jointly form a cuboid box structure, the box-type transformer substation body (1) and a top plate and a bottom plate of the supporting boxes (2) are jointly and integrally arranged, an outer side vertical plate (3) of the supporting boxes (2) is connected with the top plate (5) to form a detachable structure, the upper end of the outer side vertical plate (3) is higher than the top plate (5), a plurality of hoisting holes are formed in the outer side vertical plate higher than the top plate (5), and a plurality of filling openings (4) are formed in the top plate (5; the construction steps are as follows:
1) excavating a foundation pit according to the size of the rectangular box body;
2) hoisting the rectangular box body by using hoisting equipment, and burying the rectangular box body in the foundation pit;
3) guiding the soil for digging the foundation pit into the supporting box body through the filling opening and filling the soil;
4) opening the detachable structure of the outer vertical plate and the top plate, and hoisting and extracting the outer vertical plate through hoisting equipment;
5) inserting a vibrating rod into the filling opening, and vibrating and compacting the soil in the supporting box body;
6) and (4) propelling and compacting around the box transformer body from near to far by using a compactor.
2. A buried substation construction method according to claim 1, characterized in that: and 5) after the step 5) is finished, sealing the filling opening by adopting a cover plate.
3. A buried substation construction method according to claim 1, characterized in that: the outer side vertical plate (3) of the supporting box body (2) is in folded joint with the top plate, and the folded joint is detachably connected with the through hole in a matched mode through a bolt.
4. A buried substation construction method according to claim 1, characterized in that: the bottom plate of the supporting box body is provided with water seepage holes, and graded broken stones can be introduced into the supporting box body through the filling port and filled in the step 3).
5. A buried substation construction method according to claim 1, characterized in that: two side plates, namely the inverted trapezoidal side edges of the box transformer substation body (1) adopt aluminum-zinc-coated steel plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910845293.6A CN110700649B (en) | 2019-09-08 | 2019-09-08 | Construction method of buried transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910845293.6A CN110700649B (en) | 2019-09-08 | 2019-09-08 | Construction method of buried transformer substation |
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| Publication Number | Publication Date |
|---|---|
| CN110700649A true CN110700649A (en) | 2020-01-17 |
| CN110700649B CN110700649B (en) | 2021-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910845293.6A Active CN110700649B (en) | 2019-09-08 | 2019-09-08 | Construction method of buried transformer substation |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2512031A1 (en) * | 1975-03-19 | 1976-09-30 | Pfisterer Elektrotech Karl | TRANSFORMER STATION |
| CN2503649Y (en) * | 2001-09-20 | 2002-07-31 | 北京广联惠供用电工程设计有限公司 | Prefabricated underground box type converting station |
| CN101170243A (en) * | 2006-10-24 | 2008-04-30 | 上海置信电气非晶有限公司 | Buried-in non crystal alloy pre-installed transformer sub-station |
| CN201549809U (en) * | 2009-04-17 | 2010-08-11 | 杭州钱江电气集团股份有限公司 | Embedded type transformer |
| CN103924602A (en) * | 2014-04-30 | 2014-07-16 | 冯诚 | Deep soft soil foundation pit construction method |
| CN204732270U (en) * | 2015-07-08 | 2015-10-28 | 四川艾德瑞电气有限公司 | A kind of buried six phase 12 pulse wave rectifier transformers |
| CN207098415U (en) * | 2017-08-30 | 2018-03-13 | 新乡电力变压器有限公司 | Bury case in underground for buried substation |
| CN207504418U (en) * | 2017-11-21 | 2018-06-15 | 昆明泰阁电气有限公司 | A kind of energy-saving box type transformer station |
| CN209119663U (en) * | 2018-12-26 | 2019-07-16 | 成都华银达电器有限公司 | A kind of full-buried type substation structure |
| CN110130399A (en) * | 2019-05-15 | 2019-08-16 | 天津大学 | Tilt trapezoidal piping lane system and its construction method of the supporting in conjunction with main structure |
-
2019
- 2019-09-08 CN CN201910845293.6A patent/CN110700649B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2512031A1 (en) * | 1975-03-19 | 1976-09-30 | Pfisterer Elektrotech Karl | TRANSFORMER STATION |
| CN2503649Y (en) * | 2001-09-20 | 2002-07-31 | 北京广联惠供用电工程设计有限公司 | Prefabricated underground box type converting station |
| CN101170243A (en) * | 2006-10-24 | 2008-04-30 | 上海置信电气非晶有限公司 | Buried-in non crystal alloy pre-installed transformer sub-station |
| CN201549809U (en) * | 2009-04-17 | 2010-08-11 | 杭州钱江电气集团股份有限公司 | Embedded type transformer |
| CN103924602A (en) * | 2014-04-30 | 2014-07-16 | 冯诚 | Deep soft soil foundation pit construction method |
| CN204732270U (en) * | 2015-07-08 | 2015-10-28 | 四川艾德瑞电气有限公司 | A kind of buried six phase 12 pulse wave rectifier transformers |
| CN207098415U (en) * | 2017-08-30 | 2018-03-13 | 新乡电力变压器有限公司 | Bury case in underground for buried substation |
| CN207504418U (en) * | 2017-11-21 | 2018-06-15 | 昆明泰阁电气有限公司 | A kind of energy-saving box type transformer station |
| CN209119663U (en) * | 2018-12-26 | 2019-07-16 | 成都华银达电器有限公司 | A kind of full-buried type substation structure |
| CN110130399A (en) * | 2019-05-15 | 2019-08-16 | 天津大学 | Tilt trapezoidal piping lane system and its construction method of the supporting in conjunction with main structure |
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| Publication number | Publication date |
|---|---|
| CN110700649B (en) | 2021-09-28 |
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Effective date of registration: 20210914 Address after: 315000 room 1003, No. 51, building 18, yongningfu, Xiaying street, Yinzhou District, Ningbo City, Zhejiang Province Applicant after: Dong Linwei Address before: No.1333, Xiaying section, Yinxian Avenue, Yinzhou District, Ningbo City, Zhejiang Province, 315105 Applicant before: Ningbo Xiwo Engineering Technology Co.,Ltd. |
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Effective date of registration: 20240428 Address after: Room 1601, 16th Floor, Building 10, Yuhaiwan, No. 2 Tiyu North Road, Chikan District, Zhanjiang City, Guangdong Province, 524000 Patentee after: Guangdong leineng Power Group Co.,Ltd. Country or region after: China Address before: 315000 room 1003, No. 51, building 18, yongningfu, Xiaying street, Yinzhou District, Ningbo City, Zhejiang Province Patentee before: Dong Linwei Country or region before: China |