CN102021916B - A kind of method of iron tower foundation construction - Google Patents
A kind of method of iron tower foundation construction Download PDFInfo
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- CN102021916B CN102021916B CN201010528160.5A CN201010528160A CN102021916B CN 102021916 B CN102021916 B CN 102021916B CN 201010528160 A CN201010528160 A CN 201010528160A CN 102021916 B CN102021916 B CN 102021916B
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Abstract
The present invention relates to power transmission sequence foundation construction technical field, a kind of method disclosing iron tower foundation construction, it is to be actually needed according to point hole and formwork precision prescribed and scene, to point vertical grouser of hole nail, carry out basis setting-out, formwork is followed closely the vertical high stake being suitable for basis formwork, correcting, check again, and its step is as follows: 1), iron tower foundation divide hole, 2), iron tower foundation excavates, checks, controls and formwork；The present invention not only reduces piling, school stake, the workload of school nail, also improves a point hole speed, alleviates a point carrying amount for multiple operating points timber, reduce labor intensity, and inspection of construction is convenient and swift.And working procedure, the work efficiency improving power line tower foundation construction and construction quality can be simplified, it is ensured that power transmission sequence safe operation.
Description
[technical field]
The present invention relates to power transmission sequence foundation construction technical field, a kind of method especially relating to iron tower foundation construction.
[background technology]
At present, the foundation construction of power transmission sequence, is the important step of power transmission line construction, its work efficiency and construction quality
Quality, the safe operation after directly affecting the work efficiency of whole engineering and putting into operation.Real work has found that generally
Construction method in work progress, there is also some difficult points.
1, dividing difficult point present in the method work progress of hole such as usual iron tower foundation, iron tower foundation divides hole to determine stake to be not only base
Plinth divides the control stake in hole, is also the control stake of foundation construction and inspection, finds, usual ferrum in long-term foundation construction and inspection
The construction method in tower foundation point hole there is also defect.
1), general repetition survey of existing rail way divides the timber height in hole to basset on 250mm, the firm spud pile road for guarantee stake position
Height typically at 3-5Cm, line steel tower basis end face, design is typically basseted at 200 600mm；Gene basis end face and
Fang bolt and the discrepancy in elevation controlling stake existence cause difficulty to basis formwork.
2), general behind point hole the most also to process through channel contact and basic material, behind point hole to foundation construction process this
The section time is susceptible to pile displatement and loss, also needs to re-calibrate before formwork.
3), need to coordinate auxiliary pile and 4 bases with theodolite because stake position and foundation forms exist the discrepancy in elevation as shown in figure
Plinth tower leg is cross-referenced just can complete basis formwork, and deviation controls difficulty, inefficiency.
4), during formwork, need just can complete under specialty surveys the commander of work the project under construction that foundation forms disposes.
[summary of the invention]
In view of the weak point of above-mentioned existence, a kind of method that it is an object of the invention to provide iron tower foundation construction.Can
Simplify working procedure, the work efficiency improving power line tower foundation construction and construction quality, it is ensured that power transmission sequence is transported safely
OK；Having simple to operate, work efficiency is high, the feature that deviation is little.
In order to realize foregoing invention purpose, the present invention adopts the following technical scheme that
A kind of method of iron tower foundation construction, is to be actually needed, to a point hole according to point hole and formwork precision prescribed and scene
The vertical grouser of nail, carries out basis setting-out, and formwork is followed closely the vertical high stake being suitable for basis formwork, correcting, check again, and its step is such as
Under:
1, iron tower foundation divides hole, iron tower foundation to divide hole to require that determining stake is not only the control stake of foundation pits, is also that basis is executed
The control stake of work and inspection, but the auxiliary pile that discovery foundation pits nail is vertical in practice is because of above-mentioned reason, must also before formwork
Re-calibrate, and in work progress, there is also problems, meeting a point premise for hole required precision based on above reason
Lower simplification working procedure nail grouser, with grouser for according to carrying out a point hole；
(1) theodolite is propped up at Center stake O, make four auxiliary piles A, B, C, D according to usual way, auxiliary pile A,
It not be used in nail tingle on B, C, D, a point hole required precision can be met；Auxiliary pile A, B, C, D or make of the round steel of diameter 10mm
Instrument, replace timber, point hole time ruler end points be placed on round steel root, complete basis being divided hole；
(2) open y according to engine request and near coal-mine length of side a, side root, calculate L1、L2Value, ruler termination is placed on C stake
Center, carries out a point hole by usual way；
(3) four near coal-mine position marks of steel tower foundation ditch are understood, then by auxiliary pile by methods such as Calx after dividing hole
Pull out, carry out point hole of next base；
2, iron tower foundation excavates, checks, controls and formwork, and described foundation excavation is for avoiding basis ultra-deep, and reserved 200mm is pre-
Stay layer；After Yu Liu, following closely stake before can carrying out formwork, determining stake can carry out determining stake according to basis end face and fang bolt height, determines stake
After with auxiliary pile for according to complete to basis formwork, control and check；
(1), formwork determine stake, select the height of timber, can firmly hammer into ground；After hammering into ground, ground identity distance fang bolt
The height of end face exceeds 3mm, i.e. h2+3mm；
(2), make tetra-auxiliary piles of A, B, C, D according to point method in hole, make face thumb screw 3cm above Ground, and make four
Individual auxiliary pile is arranged in a plane；Utilize transit survey, control to nail on little iron nail in stake at A, B, C, D, determine stake complete
Afterwards for ensureing that the cement mortar that firmly uses of auxiliary pile is fixed；
(3), on auxiliary pile, cotton rope is hung up, with cotton rope as foundation, according to each spot size in the basis of layout design and work
Journey specifies, carries out foundation ditch physical dimension inspection, according to auxiliary pile height with cotton rope for according to cheating deep inspection and repairing hole；
(4), steel ruler zero line is fixed in C pile beacon note, and ruler is tightened in A stake, intercept L respectively from C point4And L7
Size, does mark on cotton rope, is foundation according to cotton rope, completes the formwork of column according to layout design stem height, with
The method is respectively completed the arrangement of other fang bolt and other footing step size；Described L1、L2、L3、L4It is C stake respectively to A
Stake dipstick metering, footing step, column and foundation bolt diagonal low coverage size；Described L5、L6、L7、L8It is that C stake is to A stake dipstick metering respectively
Footing step, column and foundation bolt diagonal long distance size；Described a1、a2、a3, be the length of side of step and column respectively, described
a4The fang bolt center length of side to center；Described L1、L2、L3、L4、L5、L6、L7、L8Cut chi length, by geometrical relationship gained:
L1=(y-a1)/L2=(y-a2)/ L3=(y-a3)/ L4=(y-a4)/
L5=(y+a5)/ L6=(y+a6)/ L7=(y+a7)/ L8=(y+a8)/。
Owing to have employed technique scheme, the present invention has superiority as follows:
A kind of method of iron tower foundation construction, is by entering traditional method of work difficult point present in the foundation construction
Row is analyzed, is found out；Working procedure, the work efficiency improving power line tower foundation construction and construction matter can be simplified
Amount, it is ensured that power transmission sequence safe operation；Superiority is as follows:
1) labor intensity is reduced: mainly multiple operating points transfer process that foundation pits relative work intensity is big needs
Carry with substantial amounts of timber with for ensureing that the firm of stake position needs to squeeze into timber major part ground, after piling, also need to school
Stake, then accurately following closely little iron nail, also needing to accurate school nail under the commander of theodolite subsequently, as long as utilizing interim timber at longitude and latitude
Timber can be made in the sight line of instrument to stand in ground play the effect of mark and can complete point hole of iron tower foundation, have ready conditions with homemade
Instrument is more convenient.Not only reduce piling, school stake, the workload of school nail, also improve a point hole speed, alleviate point multiple job
The carrying amount of some timber.
2) inspection of construction is convenient and swift: iron tower foundation formwork needs to make at specialty survey crew according to common construction method
Just can complete the formwork work on basis with theodolite under commanding, workmen needs to wait the measurement knot of each project of survey crew
Just complete the adjustment repeatedly of each project of formwork after the most out according to the commander of survey crew, utilize the construction method after improving straight
Seeing understandable, general workmen is directly put into position template and fang bolt according to the labelling on cotton rope, during formwork
The displacement repeatedly occurred can be adjusted waiting after specialty survey crew repeated measurement the most repeatedly according to the mark on cotton rope
Adjust, casting process can also check deviation repeatedly that occur because of construction, be labeled as according to carrying out quality control with cotton rope.
[accompanying drawing explanation]
Template and fang bolt end face and the discrepancy in elevation schematic diagram controlling stake based on Fig. 1；
Fig. 2 is the schematic diagram carrying out iron tower foundation point hole with interim timber；
Fig. 3 is the schematic diagram replacing timber point hole with round steel self-made tool；
Fig. 4 is the schematic diagram that formwork determines piling method；
[detailed description of the invention]
A kind of method of iron tower foundation construction, is according to point hole and formwork precision prescribed and a scene
It is actually needed, to point hole vertical grouser of nail, carries out basis setting-out, formwork is followed closely again and vertical is suitable for basis formwork, corrects, check
High stake, its step is as follows:
1, iron tower foundation divides hole, iron tower foundation to divide hole to require that determining stake is not only the control stake of foundation pits, is also that basis is executed
The control stake of work and inspection, but the auxiliary pile that discovery foundation pits nail is vertical in practice is because of above-mentioned reason, must also before formwork
Re-calibrate, and in work progress, there is also problems, meeting a point premise for hole required precision based on above reason
Lower simplification working procedure nail grouser, with grouser for according to carrying out a point hole；
(1) theodolite is propped up at Center stake O, make A, B, C, D, four auxiliary piles, auxiliary pile according to usual way
A, B, C, D are upper need not follow closely tingle again, can meet a point hole required precision；
(2) open y according to engine request and near coal-mine length of side a, side root, calculate L1、L2Value, ruler termination is placed on C stake
Center, carries out a point hole by usual way；
(3) four near coal-mine position marks of steel tower foundation ditch are understood, then by auxiliary pile by methods such as Calx after dividing hole
A, B, C, D pull out, and carry out point hole of next base；
(4) instrument or of the round steel of diameter 10mm made, replaces timber, and when dividing hole, ruler end points is placed on round steel root,
Complete basis being divided hole.The instrument feature that this round steel makes is in general soil, under the commander surveying work, one inserts i.e. conveniently
Can, hard soil is slightly pounded with hammer and just can pound in ground, can use.
2, iron tower foundation excavates, checks, controls and the improvement of formwork
Foundation excavation is for avoiding basis ultra-deep, after reserved 200mm reserves layer, follows closely stake before can carrying out formwork, and determining stake can root
Carry out determining stake according to basis end face and fang bolt height, after determine stake with auxiliary pile for according to complete to basic formwork, control and
Check.
1) formwork determines stake as shown in Figure 4, after selecting the height of timber firmly can hammer into ground, and ground identity distance fang bolt end face
Height exceed about 3mm, i.e. h2+3mm。
2) make four auxiliary piles A, B, C, D according to point method in hole as shown in Figure 2, make a face as shown in Figure 4 above Ground
Thumb screw 3cm, and make four auxiliary piles A, B, C, D, in a plane, utilize transit survey four auxiliary pile A, B, C,
D controls to nail on little iron nail in stake, is that the firm cement mortar ensureing auxiliary pile A, B, C, D is fixed after determining stake.
3) on auxiliary pile, cotton rope is hung up as shown in Figure 1, with cotton rope as foundation, according to each portion, the basis of layout design chi
Very little and engineering discipline carries out foundation ditch physical dimension inspection, according to auxiliary pile height with cotton rope for according to cheating deep inspection and repairing hole.
4) as shown in Figure 1 steel ruler zero line is fixed on as shown in Figure 1 in C pile beacon note, and ruler is tightened in A
Stake, intercepts L respectively from C point4And L7Size, does mark on cotton rope, is foundation according to cotton rope, high according to layout design column
Spend the formwork of column, be respectively completed the arrangement of other fang bolt and other footing step size in this approach.In figure
L1、L2、L3、L4It is C stake respectively to A stake dipstick metering footing step, column and foundation bolt diagonal low coverage size, L in figure5、L6、
L7、L8It is that C stake is to A stake dipstick metering footing step, column and foundation bolt diagonal long distance size respectively；A in figure1、a2、a3, respectively
It is the length of side of step and column, a4The fang bolt center length of side to center.L1、L2、L3、L4、L5、L6、L7、L8Cut chi length,
There is a geometrical relationship gained in figure:
L1=(y-a1)/L2=(y-a2)/ L3=(y-a3)/ L4=(y-a4)/
L5=(y+a5)/ L6=(y+a6)/ L7=(y+a7)/ L8=(y+a8)/；
Described simplification working procedure: point hole determine stake due to point cheat after also need to contact channel, foundation excavation, steel bar meter and
Get the raw materials ready, although a point hole is accurately positioned, but foundation pits loses stake and pile displatement phenomenon, also to existing during foundation construction
Correction reorientated by needs, and iron tower foundation is different from other concurrent basis, owing to basis end face and basal plane exist design
The discrepancy in elevation of 200mm 600mm, although by the control stake of usual method nail under the cooperation of instrument, four basic tower legs are mutually joined
According to also can complete to basis formwork and inspection but work efficiency is extremely low.If changing high stake according to the method improved, waste
In the past be accurately positioned paid work, less than foundation construction and check control accuracy according to foundation pits precision, with interim
Stake can meet requirement.
Claims (1)
1. the method for an iron tower foundation construction, it is characterised in that: it is according to point hole and the actual need of formwork precision prescribed and scene
Want, to point vertical grouser of hole nail, carry out basis setting-out, formwork is followed closely again the vertical high stake being suitable for basis formwork, correcting, check,
Its step is as follows:
1), iron tower foundation divide hole, iron tower foundation to divide hole to require determine stake and be not only the control stake of foundation pits, be also foundation construction with
The control stake checked, but the auxiliary pile that discovery foundation pits nail is vertical in practice is because of above-mentioned reason, must also be again before formwork
Correction, and in work progress, there is also problems, based on above reason, letter on the premise of meeting point hole required precision
Change working procedure nail grouser, with grouser for according to carrying out a point hole；
(1) theodolite is propped up at Center stake O, makes four auxiliary piles A, B, C, D according to usual way, auxiliary pile A, B, C,
D is upper need not follow closely tingle again, can meet a point hole required precision；When dividing hole, ruler end points is placed on auxiliary pile A, B, C, D root, completes
Basis is divided hole；
(2) open y according to engine request and near coal-mine length of side a, side root, calculate L1、L2Value, ruler termination is placed in C stake
The heart, carries out a point hole by usual way；Wherein L1Value is C stake to A stake dipstick metering basis first step diagonal low coverage size, L2Value
It is that C stake is to A stake dipstick metering basis second step diagonal low coverage size；
(3) by Calx method, four near coal-mine position marks of steel tower foundation ditch are understood, then by auxiliary pile A, B, C, D after dividing hole
Pull out, carry out point hole on next basis；
2), iron tower foundation excavate, check, control and formwork, described foundation excavation is for avoiding basis ultra-deep, and reserved 200mm reserves
Layer；After Yu Liu, i.e. carry out following closely before formwork stake, determine stake and carry out determining stake according to basic end face and fang bolt height, determine after stake with auxiliary
Helping stake is according to completing the formwork to basis, controlling and check；
(1), formwork determine stake, select the height of timber, can firmly hammer into ground；After timber hammers into ground, ground identity distance fang bolt
The height of end face exceeds 3mm, i.e. h2+3mm；h2It is that ground is to fang bolt apical side height；
(2), make four auxiliary piles A, B, C, D according to point method in hole, make face thumb screw 3cm above Ground, and make four auxiliary
A, B, C, a D is helped to be arranged in a plane；Utilize transit survey, four auxiliary pile A, B, C, D control stakes nail on little
Iron nail, uses cement mortar to fix for the firm of guarantee auxiliary pile A, B, C, D after determining stake；
(3), on auxiliary pile A, B, C, D, hang up cotton rope, with cotton rope as foundation, according to each spot size in the basis of layout design and
Engineering discipline, carries out foundation ditch physical dimension inspection, according to auxiliary pile height with cotton rope for according to cheating deep inspection and repairing hole；
(4), steel ruler zero line is fixed in C pile beacon note, and ruler is tightened in A stake, intercept L respectively from C stake point4And L7Chi
Very little, cotton rope does mark, is foundation according to cotton rope, completes the formwork of column according to layout design stem height, with this
Method is respectively completed the arrangement of other fang bolt and other footing step size；Wherein L4It is that C stake is to A stake dipstick metering column diagonal angle
Line low coverage size, L7Size is that C stake is to A stake dipstick metering column diagonal long distance size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010528160.5A CN102021916B (en) | 2010-11-02 | A kind of method of iron tower foundation construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010528160.5A CN102021916B (en) | 2010-11-02 | A kind of method of iron tower foundation construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102021916A CN102021916A (en) | 2011-04-20 |
| CN102021916B true CN102021916B (en) | 2016-12-14 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59233019A (en) * | 1983-05-30 | 1984-12-27 | Kyoei Densetsu Kk | Method and part for forming earth anchor and automatic penetrator therefor |
| SU1534143A1 (en) * | 1987-07-13 | 1990-01-07 | Ленинградский инженерно-строительный институт | Method of determining soil resistance at lateral surface and point of a pile |
| CN2056680U (en) * | 1988-10-24 | 1990-05-02 | 能源部西南电力设计院 | Light optimization iron tower foundation |
| CN101349063A (en) * | 2008-08-21 | 2009-01-21 | 孟庆波 | Iron tower foundation of overhead power transmission line severely-weathered rock formation winding anchor rod |
| CN201495555U (en) * | 2009-08-18 | 2010-06-02 | 天津二建建筑工程有限公司 | Cap tower-crane foundation of concrete cast-in-place high pile for tower erection at the house center |
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59233019A (en) * | 1983-05-30 | 1984-12-27 | Kyoei Densetsu Kk | Method and part for forming earth anchor and automatic penetrator therefor |
| SU1534143A1 (en) * | 1987-07-13 | 1990-01-07 | Ленинградский инженерно-строительный институт | Method of determining soil resistance at lateral surface and point of a pile |
| CN2056680U (en) * | 1988-10-24 | 1990-05-02 | 能源部西南电力设计院 | Light optimization iron tower foundation |
| CN101349063A (en) * | 2008-08-21 | 2009-01-21 | 孟庆波 | Iron tower foundation of overhead power transmission line severely-weathered rock formation winding anchor rod |
| CN201495555U (en) * | 2009-08-18 | 2010-06-02 | 天津二建建筑工程有限公司 | Cap tower-crane foundation of concrete cast-in-place high pile for tower erection at the house center |
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Legal Events
| Date | Code | Title | Description |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Xigong District 471000 Henan province Luoyang Kaixuan Road No. 12 Patentee after: LUOYANG POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER Co. Address before: 471000 No. 259 Kaiyuan Road, New District, Henan, Luoyang Patentee before: Luoyang Power Supply Company of Henan Electric Power Co. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20191127 Address after: Xigong District 471000 Henan province Luoyang Kaixuan Road No. 12 Co-patentee after: LUOYANG LONGYU GROUP Co.,Ltd. Patentee after: LUOYANG POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER Co. Address before: Xigong District 471000 Henan province Luoyang Kaixuan Road No. 12 Patentee before: LUOYANG POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER Co. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161214 |