CN101165293A - Vertical design method for mountain front slope substation - Google Patents
Vertical design method for mountain front slope substation Download PDFInfo
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- CN101165293A CN101165293A CNA2007100714618A CN200710071461A CN101165293A CN 101165293 A CN101165293 A CN 101165293A CN A2007100714618 A CNA2007100714618 A CN A2007100714618A CN 200710071461 A CN200710071461 A CN 200710071461A CN 101165293 A CN101165293 A CN 101165293A
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Abstract
The vertical design of transformer station in piedmont slope considers the requirement of preventing flood overflowing the slope, and has the single power distribution units arranged in small horizontal sites stepped in the slope. Each of the power distribution units is supported horizontally with supporting rods in different lengths onto one foundation set on two steps. In the slope, there are two power distribution units and several other single structures set in different heights and connected through flexible conductors. All the cable channels, draining pipes and road are set properly in the slope. The present invention has the features of high engineering quality, less investment, short construction period, etc.
Description
Technical field
What the present invention relates to is a kind of electric substation in total friendship method for designing of slope in front of the mountains, belongs to the design field of electric substation.
Background technology
The national policy of ploughing owing to protect the fields, slope substation increases just gradually in front of the mountains at present.The task of the vertical design of electric substation is to utilize the physical relief in place, and the ground elevation in place is carried out the planning and designing of vertical direction, makes it to satisfy technology and instructions for use.
The slope is carried out the vertical design of electric substation and should be satisfied the flood control requirement in front of the mountains, satisfies the special process requirement of electric substation's " female horizontal arrangement of pipe in each power distribution equipment " again.Therefore all can there be a large amount of embankments in many electric substations when building, and are higher than flood level to guarantee the place, and guarantee that the place level is to satisfy technological requirement.
Because a large amount of backfill earthwork often face following two problems:
The one, because backfill is brought many engineering quantitys, comprise the earthwork, barricade, ground processing etc., construction period, investment are remained high.Just take cubic metre of earth: about 110 mu are taken up an area of in a conventional 500kV electric substation, and every embankment 1m height needs the outsourcing earthwork 7.3 ten thousand m
3, the total expense is 2,920,000 yuan, needs 20 haulage vehicles, constructs 1 month.
The 2nd, high backfill will be brought place surface settlement, influence whole workmanship.Because a large amount of backfills form the large tracts of land load to ground, will bring place surface settlement, deal with improperly, cause that easily construction cracking, cable trench, crack on road, lead break, even cause that equipment screen cabinet tilts so that causes the generation of large area blackout.Not only good hillside fields geological conditions can not be made the most of the advantage, and stays hidden danger of quality.
The present invention is directed to the electric substation of this specified conditions in hillside fields in front of the mountains, realized the optimization of vertical design, and solved a series of interface problems with technology.
Summary of the invention
The objective of the invention is to overcome the deficiency of above-mentioned existence, and provide a kind of utilization physical relief in hillside fields in front of the mountains, the ground elevation in hillside fields is carried out the planning and designing of vertical direction, make it to satisfy the vertical method for designing of the slope substation in front of the mountains of technology and instructions for use.
The objective of the invention is to finish by following technical solution: based on the proposition of flood gentle slope thinking, place, light grade slope is made to satisfy the flood control requirement along physical relief in the whole place of electric substation, adjustment by structure cradling piece segment length guarantees the technological requirement of " single power distribution equipment in pipe female horizontal arrangement ".
The ground in place, described slope constitutes with the step ground, and the absolute altitude of the basic end in the single power distribution equipment divides two step settings, and for guaranteeing the female energy of the pipe level of structure support top upper support, structure cradling piece segment length also is divided into two classes.
Designing altogether on the place, described slope has 2 power distribution equipments and a plurality of monomer construction of structures, and has relative relief mutually, all connects with flexible circuit conductor between each monomer, and the cable trench in place, drainage pipe and road all adopt along the gradient and handle.
Place, described slope is provided with the not female main transformer place of pipe, and this main transformer place directly adopts the structure support to arrange along the place gradient.
The ground in place, described slope is to look for the slope along the pipe maternal to 0.8%, and the hillside fields difference of height in place reaches 3.5m at least.
The present invention compared with prior art has the lifting workmanship, reduces construction investment, shortens characteristics such as construction period simultaneously.
Description of drawings
Fig. 1 is a flood gentle slope thinking schematic diagram of the present invention
Fig. 2 is an electric substation of the present invention structure design schematic diagram.
The specific embodiment
The present invention will be described in detail below in conjunction with drawings and Examples:
By to the analysis of hillside fields flood level in front of the mountains, found that there is the rule of the gradient in the landform that complies with the nature of hillside fields flood level in front of the mountains.Based on this rule, the present invention proposes the scheme that the slope is also consequent relief looked in the whole vertical design of electric substation.Look for the slope by the place, reduce backfill height in a large number, reach and fundamentally promote workmanship, reduce construction investment, shorten the purpose of construction period simultaneously.The present invention is based on the proposition of flood gentle slope thinking, place, light grade slope is made satisfying the flood control requirement along physical relief in the whole place of electric substation, and the adjustment by structure cradling piece segment length guarantees the technological requirement of " the female horizontal arrangement of pipe in the single power distribution equipment ".
The ground in place, described slope constitutes with the step ground, and the absolute altitude of the basic end in the single power distribution equipment divides two step settings, and for guaranteeing the female energy of the pipe level of structure support top upper support, structure cradling piece segment length also is divided into two classes.
Designing altogether on the place, described slope has 2 power distribution equipments and a plurality of monomer construction of structures, and has relative relief mutually, all connects with flexible circuit conductor between each monomer, and the cable trench in place, drainage pipe and road all adopt along the gradient and handle.
Place, described slope is provided with the not female main transformer place of pipe, and this main transformer place directly adopts the structure support to arrange along the place gradient.
The ground in place, described slope is to look for the slope along the pipe maternal to 0.8%, and the hillside fields difference of height in place reaches 3.5m at least.
Flood gentle slope thinking---the discovery of hillside fields flood level rule is in front of the mountains seen shown in the accompanying drawing 1.
In engineering design process, about flood level, the professional designer has proposed the new approaches of flood gentle slope, highly provides advantage for reducing backfill.
As seen from the figure, the flood level in hillside fields and plain river network area is different in front of the mountains.When flood is converged and following time by the mountain area catchment area, from the hillside fields gentle slope and mistake is discharged into plain river network.Therefore, well-known as us, the flood level of the regional area in plains region is a definite value, just showing as in the drawings is a horizon, different therewith, there is the gradient in the flood level in the hillside fields landform that then complies with the nature in front of the mountains, and both gradients are in conjunction with good, and just showing as in the drawings is an oblique line that is parallel to the nature hillside fields.
In the past, run into the hillside fields engineering, we all consider with the Plain rule of routine, think that flood level is a definite value, therefore, get the hillside fields peak.Bring the embankment of toe place highly inevitable very big thus.From figure, can find when this conventional thinking applies to the extreme terrain in hillside fields in front of the mountains, to have certain limitation significantly.
By new flood gentle slope thinking, can determine that frequency is 1% high water level, and this water level combines well with the physical relief gradient.Highly provide advantage for reducing the backfill earthwork.
Analyze slope substation regularity in front of the mountains: geological conditions better, physical relief and flood level be the gradient, and both gradients are in conjunction with good.Therefore, propose the whole vertical plane sloping layout of distinguishing, the promptly whole suitable physical relief of design elevation of distinguishing is looked for the slope, and gradient direction just in time is total at present flat interior suitable pipe generatrix direction.
Faced a technological problems thus: domestic do not have the place along managing maternal to the enforcement precedent of looking for the slope.In the engineering practice of 500kV Ninghai electric substation maiden attempt new departure research of looking for the slope along hillside fields landform in front of the mountains of electric substation's place design elevation, and solved consequent series of process matching problem, started the slope is looked in domestic electric substation place along generatrix direction precedent.The wherein all characteristic and innovation of ways such as flood gentle slope thinking, place, slope, footing foundation.
The analysis process interface problem has following three difficult points:
In difficult point one, the design of present domestic electric substation, the pipe mother is a horizontal arrangement in the power distribution equipment, and pipe is female looks for sloping way that the enforcement precedent is not arranged along generatrix direction with the minimum gradient; Countermeasure measure: consider that from the angle of technical maturity after the slope was looked in the place, 500kV, 220kV power distribution equipment passed through the adjustment of structure cradling piece section height, guarantee to manage female level; Target: guarantee the female maintenance level of pipe.
Difficult point two, for guaranteeing the female level of pipe in the power distribution equipment, in the whole engineering on structure cradling piece section height and model, basic rim of a cup absolute altitude, the bar section anchor ear height, equipment operator link height etc. change variously, do step at interval by each and change.On certain meaning, will prolong design and installation period; The countermeasure measure: adopt the place, slope, the thinking of footing foundation solves; Target: handling back bar section and basic model is about conventional engineering twice.
Difficult point three, because of after the place looks for the slope, have the discrepancy in elevation relatively between each monomer of electric substation, need resolve connections such as mutual lead, raceway groove; The countermeasure measure: all be that flexible circuit conductor connects between each monomer, place cable trench, drainage pipe and road all adopt along the gradient and handle; Target: the sloping contact that does not influence between each function division of electrotechnical is looked in the place, and the district draining is offered convenience.
At above difficult point one and difficult point two, the 500kV power distribution equipment has been taked the place, slope, and the thinking of footing foundation solves, and sees shown in the accompanying drawing 2.Guaranteed the female level of pipe in the 500kV power distribution equipment, bar section and basic model are about conventional engineering twice.The 220kV power distribution equipment adopts same thinking.The female main transformer place of pipe does not directly adopt the structure support to arrange along the place gradient, goes up with conventional way as broad as long from designing and constructing.
At above difficult point three, look for the slope with the place, there is the discrepancy in elevation relatively between each monomer of electric substation.220kV power distribution equipment, 500kV power distribution equipment are with adopting flexible circuit conductor to connect between main transformer, do not influence the contact between each function division of electrotechnical, place cable trench, drainage pipe and road all consequent relief adopt the gradient to handle, because the slope is looked in the place, make the natural drainage of whole electric substation become possibility, save mechanical drainage plant and structure such as pump house, brought facility for the draining of distinguishing.
This project with compare than conventional engineering, cubic metre of earth, ground is handled and the barricade engineering quantity reduce near half.Shorten about 50 days of civil engineering construction period; Given full play to slope substation geological conditions good advantage in front of the mountains, avoided the later stage influence of high backfill sedimentation, the construction quality of whole electric substation has been played the castering action of essence; Construction investment reduces more than 1,000 ten thousand, accounts for civil engineering static investment nearly 1/4.Because the slope is looked in the place, offer convenience for the draining of distinguishing, make the natural drainage of whole electric substation become possibility, saved mechanical drainage plant and structure such as pump house, also play the effect that the reduction of erection time reduces investment.This technology obtains the abundant affirmation of China Power engineering group company just establishing in the examination, think a safety, advanced person, environmental protection, achievement in research of fine quality.And, be subjected to the welcome of Construction Party and construction party because of a large amount of engineering quantitys that reduce.
At present, the 500kV Ninghai electric substation that uses this achievement put into operation nearly 2 years, and operation is normal, and the place maximum settlement is 8mm only.Have good safety and economy, promotion prospect is wide.
Show from the practice utilization of engineering: the present invention builds a 500kV electric substation in the hillside fields, can reduce nearly 10,000,000 yuan of construction investment than routine, builds a 220kV electric substation, can reduce nearly 2,500,000 yuan of investment; Give play to hillside fields geology advantage simultaneously, fundamentally promoted workmanship; And shorten construction period about 50 days.Be a safety, advanced person, environmental protection, achievement in research of fine quality, it is leading domestic that integral level reaches.For similar slope substation design in front of the mountains provides reference and popularizing action.
Claims (5)
1. vertical method for designing of slope substation in front of the mountains, this method for designing is based on the proposition of flood gentle slope thinking, place, light grade slope is made to satisfy the flood control requirement along physical relief in the whole place of electric substation, adjustment by structure cradling piece segment length guarantees the technological requirement of " single power distribution equipment in pipe female horizontal arrangement ".
2. the vertical method for designing of slope substation in front of the mountains according to claim 1, the ground that it is characterized in that place, described slope constitutes with the step ground, absolute altitude of the basic end in the single power distribution equipment divides two step settings, for guaranteeing the female energy of the pipe level of structure support top upper support, structure cradling piece segment length also is divided into two classes.
3. the vertical method for designing of slope substation in front of the mountains according to claim 1 and 2, it is characterized in that designing altogether on the place, described slope 2 power distribution equipments and a plurality of monomer construction of structures are arranged, and have relative relief mutually, all connect with flexible circuit conductor between each monomer, the cable trench in place, drainage pipe and road all adopt along the gradient and handle.
4. the vertical method for designing of slope substation in front of the mountains according to claim 3 is characterized in that place, described slope is provided with the not female main transformer place of pipe, and this main transformer place directly adopts the structure support to arrange along the place gradient.
5. the vertical method for designing of slope substation in front of the mountains according to claim 4, the ground that it is characterized in that place, described slope are to look for the slope along the pipe maternal to 0.8%, and the hillside fields difference of height in place reaches 3.5m at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710071461A CN100575646C (en) | 2007-09-28 | 2007-09-28 | The vertical construction method of slope substation in front of the mountains |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710071461A CN100575646C (en) | 2007-09-28 | 2007-09-28 | The vertical construction method of slope substation in front of the mountains |
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| CN101165293A true CN101165293A (en) | 2008-04-23 |
| CN100575646C CN100575646C (en) | 2009-12-30 |
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| CN200710071461A Expired - Fee Related CN100575646C (en) | 2007-09-28 | 2007-09-28 | The vertical construction method of slope substation in front of the mountains |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102373816A (en) * | 2011-11-11 | 2012-03-14 | 杭州展悦科技有限公司 | Assembled concrete member for net distribution cabinet infrastructure and assembling method thereof |
| CN108616104A (en) * | 2018-07-13 | 2018-10-02 | 安徽华电工程咨询设计有限公司 | A kind of open caisson of staggered floor cable laying |
| CN112746545A (en) * | 2020-12-30 | 2021-05-04 | 上汽通用五菱汽车股份有限公司 | Pavement drainage structure applied to dynamic square of automobile test field |
-
2007
- 2007-09-28 CN CN200710071461A patent/CN100575646C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102373816A (en) * | 2011-11-11 | 2012-03-14 | 杭州展悦科技有限公司 | Assembled concrete member for net distribution cabinet infrastructure and assembling method thereof |
| CN102373816B (en) * | 2011-11-11 | 2014-12-17 | 杭州展悦科技有限公司 | Assembled concrete member for net distribution cabinet infrastructure and assembling method thereof |
| CN108616104A (en) * | 2018-07-13 | 2018-10-02 | 安徽华电工程咨询设计有限公司 | A kind of open caisson of staggered floor cable laying |
| CN112746545A (en) * | 2020-12-30 | 2021-05-04 | 上汽通用五菱汽车股份有限公司 | Pavement drainage structure applied to dynamic square of automobile test field |
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| Publication number | Publication date |
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| CN100575646C (en) | 2009-12-30 |
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Owner name: CHINA ENERGY ENGINEERING GROUP ZHEJIANG ELECTRIC P Free format text: FORMER NAME: ZHEJIANG PROV. ELECTRIC POWER DESIGN INST. |
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Address after: Hangzhou City, Zhejiang province 310012 GUCUI Road No. 68 Patentee after: Energy source in China construction group Zhejiang Province Power Design Institute Co., Ltd Address before: 310011 No. 69, false Hill Road, Shangcheng District, Zhejiang, Hangzhou Patentee before: Zhejiang Electric Power Design Institute |
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