CN109723081A - Subway station lattice column construction method - Google Patents
Subway station lattice column construction method Download PDFInfo
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- CN109723081A CN109723081A CN201811622500.3A CN201811622500A CN109723081A CN 109723081 A CN109723081 A CN 109723081A CN 201811622500 A CN201811622500 A CN 201811622500A CN 109723081 A CN109723081 A CN 109723081A
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Abstract
The invention discloses a kind of subway station lattice column construction methods, comprise the following steps: a, lattice column preparation, a1, lattice column arrangement, a2, welding batten plate, a3, field joint are welded；B, b2, column pile driving construction, b1, boring positioning excavate pore-forming, b3, borehole cleaning simultaneously place steel reinforcement cage；C, lattice column is constructed, and c1, is determined anchor point, c2, is placed lattice column, c3, lattice column and steel reinforcement cage weld, c4, casting concrete.Through the above way, subway station lattice column construction method of the present invention has ensured the main body intensity of lattice column, avoid lattice column main body stress deformation, it ensure that the installation effect of lattice column main body, there is enough spaces simultaneously to place lattice column and steel reinforcement cage, guarantee that lattice column and steel reinforcement cage are placed straight and horizontal, promote the work progress stable and continuous of stand column pile and lattice column, construction cost is reduced, construction efficiency is improved.
Description
Technical field
The present invention relates to subway work technical fields, more particularly to a kind of subway station lattice column construction method.
Background technique
With the fast development of China's economic, ground traffic is no longer satisfied the needs of going out of people, and occurs more next
More modes of transportation, such as overpass, subway etc..The appearance of subway alleviates the pressure of going out of people significantly.Underground is continuous
Wall is as important building enclosure form a kind of in deep-foundation pit engineering, and in China, each metropolitan railway traffic engineering was built in recent years
If having obtained extensive reference in field.
With the expansion of rail vehicle stage space, structure type is become more complicated, and difficulty of construction gradually increases, underground
The function of diaphragm wall is also gradually sent out to the direction of permanent building enclosure and main structure longitudinal support structure from interim building enclosure
Exhibition.The wherein important component of lattice column longitudinal bracing can guarantee enhancing component strength performance under the conditions of same axial drag.
At present during subway work, it is easy to happen the situations such as inclination in the installation process of lattice column, leads to lattice column
Workability be affected, influence the construction speed of subway station, increase construction cost.
Summary of the invention
The invention mainly solves the technical problem of providing a kind of subway station lattice column construction method, lattice column main body intensity
Height avoids lattice column main body stress deformation, ensure that the installation effect of lattice column main body, while having enough spaces to put
It sets lattice column and steel reinforcement cage, guarantees that lattice column and steel reinforcement cage are placed straight and horizontal, promote applying for stand column pile and lattice column
Work process stable and continuous, reduces construction cost, improves construction efficiency.
In order to solve the above technical problems, one technical scheme adopted by the invention is that: a kind of subway station lattice column is provided and is applied
Work method, comprises the following steps: a, lattice column preparation；B, column pile driving construction；C, lattice column is constructed；
Wherein lattice column includes four angle steel and multiple batten plates, and lattice column preparation includes the following steps:
A1, lattice column arrangement: it is arranged symmetrically two-by-two using four angle steel, Formation cross-section is rectangular-shaped column structure, from column
The top of structure to bottom interval is disposed with multiple batten plates and forms lattice column main body；
A2, welding batten plate: batten plate is soldered to top, last block batten plate of top and column structure along the bottom of column structure
Top distance is adjustable；
A3, field joint are welded: transport to scene after the processing of lattice column main body merogenesis docked, it is single when welding at the scene
For lattice column welding line joint no more than two, weld seam uses groove welding, and single angle steel connector will be staggeredly arranged, and section connector rate is not
It can exceed that 50%, the distance that is staggered is greater than 500mm；
Column pile driving construction includes the following steps:
B1, boring positioning: according to setting position, timber fixed point is directly pinpointed or squeezes into, then by " crossing method " in wood
The surrounding of stake fixed point carries out fender pile point；
B2, excavate pore-forming: ensuring that drilled pile is not tilted, do not moved, it is ensured that the verticality of drilling and pile position deviation meet design with
Code requirement, drilling diameter are 20cm at least bigger than design aperture, and depth of pore forming need to be greater than not less than design hole depth, sediment thickness
10cm；
B3, borehole cleaning simultaneously place steel reinforcement cage: placing steel reinforcement cage in cleaning hole after sediment, arrange a positioning every 2 ~ 5m on steel reinforcement cage
Gusset, the symmetrically placed four positioning gusset of per pass section, is fixed when steel reinforcement cage falls to orifice position with fashioned iron；
Lattice column construction includes the following steps:
C1, it determines anchor point: after the completion of stand column pile drilling, borehole circumference mud, soil etc. being cleaned out, surveyor calculates lattice
Four four coordinate points of side midpoint extended line of structure column, then carry out unwrapping wire, and deviations are less than 50mm；
C2, it places lattice column: lattice column being sling and is slowly put into steel reinforcement cage, while being in reinforcement connection using fashioned iron；
C3, lattice column and steel reinforcement cage weld: welding two pegs on every side of lattice column, the longitudinal pitch of peg is not less than
200mm often shows five, peg and steel reinforcement cage is locked, and is located at lattice column among steel reinforcement cage；
C4, casting concrete: oppose the progress concreting of stanchion bottom, after stand column pile concrete casting complete, carries out stake holes in time
Backfill.
In a preferred embodiment of the present invention, the contact area of batten plate and angle steel is at least batten plate area on lattice column
Half.
In a preferred embodiment of the present invention, in lattice column preparation process top batten plate and lattice column body top away from
From 600mm is not more than, two batten plates are at least arranged for every meter on single lattice column.
In a preferred embodiment of the present invention, lattice column uses Q235B steel, and welding rod uses E43XX, and weld seam is 10 ~
20mm。
In a preferred embodiment of the present invention, steel reinforcement cage includes longitudinally arranged main supporting rib and the main supporting rib of connection
Steel ring, be fixed between the two using welding manner.
In a preferred embodiment of the present invention, the positioning gusset in column pile driving construction on steel reinforcement cage uses welding by both sides, fixed
The diameter of section of position gusset is at least 15mm.
In a preferred embodiment of the present invention, the position deviation range of lattice column is when lattice column is hung in steel reinforcement cage
± 25 ~ 38mm, perpendicularity deviation≤L/250, lattice column corner≤2 ° ~ 5 °.
In a preferred embodiment of the present invention, the section catercorner length in lattice column insertion steel reinforcement cage is less than steel reinforcement cage
Diameter.
In a preferred embodiment of the present invention, stand column pile lower concrete at least pours in three times, pours height for the first time
Degree is at least 1/5th of stand column pile height, pours the half that height is at least stand column pile height for the second time, and third time is completed
The concreting of residual altitude, pour each time after the completion of need to backfill it is closely knit after poured next time again.
The beneficial effects of the present invention are: the overall structure of lattice column main body is strong in subway station lattice column construction method of the present invention
Degree is high, avoids lattice column main body stress deformation, ensure that the installation effect of lattice column main body, while there is enough spaces to come
Lattice column and steel reinforcement cage are placed, guarantees that lattice column and steel reinforcement cage are placed straight and horizontal, promote stand column pile and lattice column
Work progress stable and continuous, reduces construction cost, improves construction efficiency.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing, in which:
Fig. 1 is the structural schematic diagram of subway station lattice column construction of the invention；
The components in the drawings are labeled as follows: 100, lattice column, 101, angle steel, 102, batten plate, 200, stand column pile, 300, reinforcing bar
Cage, 301, supporting rib, 302, steel ring, 303, positioning gusset.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's all other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Referring to Fig. 1, the embodiment of the present invention includes:
Embodiment one
A kind of subway station lattice column construction method, including following preparation section: prepared by lattice column 100, the construction of stand column pile 200 and lattice
The construction of structure column.
Wherein lattice column 100 includes four angle steel 101 and multiple batten plates 102, and lattice column preparation includes the following steps:
A1, lattice column 100 are arranged: it is arranged symmetrically two-by-two using four angle steel 101, Formation cross-section is rectangular-shaped column structure,
Multiple batten plates 102, which are disposed with, from the top of column structure to bottom interval forms lattice column main body, batten plate 102 and angle on lattice column
The contact area of steel 101 is at least the half of batten plate area.
A2, welding batten plate 102: batten plate 102 is soldered to top, last block batten plate of top along the bottom of column structure
102 is adjustable with column structure top distance.
Top batten plate 102 is 600mm at a distance from lattice column body top in lattice column preparation process, on single lattice column
Every meter is at least arranged two batten plates 102.
A3, field joint are welded: transport to scene after the processing of lattice column main body merogenesis being docked, when welding at the scene
For single lattice column welding line joint no more than two, weld seam uses groove welding, and single 101 connector of angle steel will be staggeredly arranged, section
Connector rate is 35%, and the distance that is staggered is 560mm.
Lattice column uses Q235B steel in lattice column preparation process, and welding rod uses E43XX, and weld seam is 10mm.
Column pile driving construction includes the following steps:
B1, boring positioning: according to setting position, timber fixed point is directly pinpointed or squeezes into, then by " crossing method " in wood
The surrounding of stake fixed point carries out fender pile point, guarantees the firm of boring procedure and safety, it is ensured that drilling it is straight and horizontal.
B2, it excavates pore-forming: ensuring that drilled pile is not tilted, do not moved, it is ensured that the verticality of drilling is set with pile position deviation satisfaction
Meter and code requirement, drilling diameter are 20cm at least bigger than design aperture, and depth of pore forming needs big not less than design hole depth, sediment thickness
In 10cm, it is ensured that there are enough spaces to be used to place steel reinforcement cage, guarantee that steel reinforcement cage is placed straight and horizontal.
B3, borehole cleaning simultaneously place steel reinforcement cage 300: placing steel reinforcement cage 300 in cleaning hole after sediment, steel reinforcement cage 300 includes longitudinal
The main supporting rib 301 of arrangement and the steel ring 302 of the main supporting rib 301 of connection, are fixed using welding manner between the two.
On steel reinforcement cage 300 every 2m arrange a positioning gusset 303, the symmetrically placed four positioning gusset 303 of per pass section,
It is fixed when steel reinforcement cage 300 falls to orifice position with fashioned iron.Wherein the positioning gusset 303 on steel reinforcement cage 300 is using two-sided
Weldering, the diameter of section of positioning gusset 303 are 15mm, it is ensured that the intensity of steel reinforcement cage 300.
Lattice column construction includes the following steps:
C1, it determines anchor point: after the completion of stand column pile drilling, borehole circumference mud, soil etc. being cleaned out, surveyor calculates lattice
Four four coordinate points of side midpoint extended line of structure column, then carry out unwrapping wire, deviations 48mm.
C2, place lattice column 100: lattice column 100 is sling and is slowly put into steel reinforcement cage 300, at the same use fashioned iron into
Row reinforces connection, and the position deviation range that lattice column 100 hangs lattice column when in steel reinforcement cage 300 is ± 25mm, and verticality is inclined
Difference is L/250, and lattice column corner is 2.
The section catercorner length that lattice column 100 is inserted into steel reinforcement cage 300 is less than the diameter of steel reinforcement cage 300, it is ensured that lattice
Column is smoothly smoothly placed, improve lattice column place stability, it is ensured that construction it is reliable and stable.
C3, lattice column 100 and steel reinforcement cage 300 weld: welding two pegs on every side of lattice column 100, peg is indulged
It is 200mm to spacing, often shows five, peg and steel reinforcement cage are locked, be located at lattice column among steel reinforcement cage.
C4, casting concrete: oppose the progress concreting of stanchion bottom, after stand column pile concrete casting complete, carries out in time
Stake holes backfill.
Stand column pile lower concrete at least pours in three times, pour for the first time height be at least stand column pile height five/
One, the half that height is at least stand column pile height is poured for the second time, and third time completes the concreting of residual altitude.
On the one hand fully ensured that in this way concrete to pour secret room secured, on the other hand steel reinforcement cage can be carried out good
Fastening, avoid rising of steel cage.
Need to backfill after the completion of pouring each time it is closely knit after poured next time again, stake holes is backfilled using coarse sand, is backfilled
When from lattice column periphery and it is intermediate uniformly carry out, avoid squeezing inclined.
Embodiment two
A kind of subway station lattice column construction method, including following preparation section: prepared by lattice column 100, the construction of stand column pile 200 and lattice
The construction of structure column.
Wherein lattice column 100 includes four angle steel 101 and multiple batten plates 102, and lattice column preparation includes the following steps:
A1, lattice column 100 are arranged: it is arranged symmetrically two-by-two using four angle steel 101, Formation cross-section is rectangular-shaped column structure,
Multiple batten plates 102, which are disposed with, from the top of column structure to bottom interval forms lattice column main body, batten plate 102 and angle on lattice column
The contact area of steel 101 is at least the half of batten plate area.
A2, welding batten plate 102: batten plate 102 is soldered to top, last block batten plate of top along the bottom of column structure
102 is adjustable with column structure top distance.
Top batten plate 102 is 500mm at a distance from lattice column body top in lattice column preparation process, on single lattice column
Every meter is at least arranged two batten plates 102.
A3, field joint are welded: transport to scene after the processing of lattice column main body merogenesis being docked, when welding at the scene
For single lattice column welding line joint no more than two, weld seam uses groove welding, and single 101 connector of angle steel will be staggeredly arranged, section
Connector rate is 40%, and the distance that is staggered is 600mm.
Lattice column uses Q235B steel in lattice column preparation process, and welding rod uses E43XX, and weld seam is 12mm.
Column pile driving construction includes the following steps:
B1, boring positioning: according to setting position, timber fixed point is directly pinpointed or squeezes into, then by " crossing method " in wood
The surrounding of stake fixed point carries out fender pile point, guarantees the firm of boring procedure and safety, it is ensured that drilling it is straight and horizontal.
B2, it excavates pore-forming: ensuring that drilled pile is not tilted, do not moved, it is ensured that the verticality of drilling is set with pile position deviation satisfaction
Meter and code requirement, drilling diameter are 20cm at least bigger than design aperture, and depth of pore forming needs big not less than design hole depth, sediment thickness
In 10cm, it is ensured that there are enough spaces to be used to place steel reinforcement cage, guarantee that steel reinforcement cage is placed straight and horizontal.
B3, borehole cleaning simultaneously place steel reinforcement cage 300: placing steel reinforcement cage 300 in cleaning hole after sediment, steel reinforcement cage 300 includes longitudinal
The main supporting rib 301 of arrangement and the steel ring 302 of the main supporting rib 301 of connection, are fixed using welding manner between the two.
On steel reinforcement cage 300 every 5m arrange a positioning gusset 303, the symmetrically placed four positioning gusset 303 of per pass section,
It is fixed when steel reinforcement cage 300 falls to orifice position with fashioned iron.Wherein the positioning gusset 303 on steel reinforcement cage 300 is using two-sided
Weldering, the diameter of section of positioning gusset 303 are 18mm, it is ensured that the intensity of steel reinforcement cage 300.
Lattice column construction includes the following steps:
C1, it determines anchor point: after the completion of stand column pile drilling, borehole circumference mud, soil etc. being cleaned out, surveyor calculates lattice
Four four coordinate points of side midpoint extended line of structure column, then carry out unwrapping wire, deviations 45mm.
C2, place lattice column 100: lattice column 100 is sling and is slowly put into steel reinforcement cage 300, at the same use fashioned iron into
Row reinforces connection, and the position deviation range that lattice column 100 hangs lattice column when in steel reinforcement cage 300 is ± 30mm, and verticality is inclined
Difference≤L/300, lattice column corner≤5 °.
The section catercorner length that lattice column 100 is inserted into steel reinforcement cage 300 is less than the diameter of steel reinforcement cage 300, it is ensured that lattice
Column is smoothly smoothly placed, improve lattice column place stability, it is ensured that construction it is reliable and stable.
C3, lattice column 100 and steel reinforcement cage 300 weld: welding two pegs on every side of lattice column 100, peg is indulged
It is 240mm to spacing, often shows five, peg and steel reinforcement cage are locked, be located at lattice column among steel reinforcement cage.
C4, casting concrete: oppose the progress concreting of stanchion bottom, after stand column pile concrete casting complete, carries out in time
Stake holes backfill.
Stand column pile lower concrete at least pours in three times, pour for the first time height be at least stand column pile height five/
One, the half that height is at least stand column pile height is poured for the second time, and third time completes the concreting of residual altitude.
It has on the one hand fully ensured that pouring for concrete is closely knit secured in this way, on the other hand steel reinforcement cage can have been carried out good
Fastening, avoid rising of steel cage.
Need to backfill after the completion of pouring each time it is closely knit after poured next time again, stake holes is backfilled using coarse sand, is backfilled
When from lattice column periphery and it is intermediate uniformly carry out, avoid squeezing inclined.
The beneficial effect of subway station lattice column construction method of the present invention is:
The overall structural strength of lattice column main body is high, avoids lattice column main body stress deformation, ensure that the installation of lattice column main body
Effect；
Lattice column and steel reinforcement cage are placed with enough spaces, guarantee that lattice column and steel reinforcement cage place straight and horizontal, rush
Into the work progress stable and continuous of stand column pile and lattice column, construction cost is reduced, construction efficiency is improved.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (9)
1. a kind of subway station lattice column construction method, which is characterized in that comprise the following steps: a, lattice column preparation；B, stand column pile
Construction；C, lattice column is constructed；
Wherein lattice column includes four angle steel and multiple batten plates, and lattice column preparation includes the following steps:
A1, lattice column arrangement: it is arranged symmetrically two-by-two using four angle steel, Formation cross-section is rectangular-shaped column structure, from column
The top of structure to bottom interval is disposed with multiple batten plates and forms lattice column main body；
A2, welding batten plate: batten plate is soldered to top, last block batten plate of top and column structure along the bottom of column structure
Top distance is adjustable；
A3, field joint are welded: transport to scene after the processing of lattice column main body merogenesis docked, it is single when welding at the scene
For lattice column welding line joint no more than two, weld seam uses groove welding, and single angle steel connector will be staggeredly arranged, and section connector rate is not
It can exceed that 50%, the distance that is staggered is greater than 500mm；
Column pile driving construction includes the following steps:
B1, boring positioning: according to setting position, timber fixed point is directly pinpointed or squeezes into, then by " crossing method " in wood
The surrounding of stake fixed point carries out fender pile point；
B2, excavate pore-forming: ensuring that drilled pile is not tilted, do not moved, it is ensured that the verticality of drilling and pile position deviation meet design with
Code requirement, drilling diameter are 20cm at least bigger than design aperture, and depth of pore forming need to be greater than not less than design hole depth, sediment thickness
10cm；
B3, borehole cleaning simultaneously place steel reinforcement cage: placing steel reinforcement cage in cleaning hole after sediment, arrange a positioning every 2 ~ 5m on steel reinforcement cage
Gusset, the symmetrically placed four positioning gusset of per pass section, is fixed when steel reinforcement cage falls to orifice position with fashioned iron；
Lattice column construction includes the following steps:
C1, it determines anchor point: after the completion of stand column pile drilling, borehole circumference mud, soil etc. being cleaned out, surveyor calculates lattice
Four four coordinate points of side midpoint extended line of structure column, then carry out unwrapping wire, and deviations are less than 50mm；
C2, it places lattice column: lattice column being sling and is slowly put into steel reinforcement cage, while being in reinforcement connection using fashioned iron；
C3, lattice column and steel reinforcement cage weld: welding two pegs on every side of lattice column, the longitudinal pitch of peg is not less than
200mm often shows five, peg and steel reinforcement cage is locked, and is located at lattice column among steel reinforcement cage；
C4, casting concrete: oppose the progress concreting of stanchion bottom, after stand column pile concrete casting complete, carries out stake holes in time
Backfill.
2. subway station lattice column construction method according to claim 1, which is characterized in that batten plate and angle steel on lattice column
Contact area is at least the half of batten plate area.
3. subway station lattice column construction method according to claim 1, which is characterized in that top in lattice column preparation process
Batten plate is not more than 600mm at a distance from lattice column body top, at least arranges two batten plates for every meter on single lattice column.
4. subway station lattice column construction method according to claim 1, which is characterized in that lattice column uses Q235B steel, weldering
Item uses E43XX, and weld seam is 10 ~ 20mm.
5. subway station lattice column construction method according to claim 1, which is characterized in that steel reinforcement cage includes longitudinally arranged
The steel ring of main supporting rib and the main supporting rib of connection, is fixed using welding manner between the two.
6. subway station lattice column construction method according to claim 1, which is characterized in that in column pile driving construction on steel reinforcement cage
Positioning gusset use welding by both sides, the diameter of section for positioning gusset is at least 15mm.
7. subway station lattice column construction method according to claim 1, which is characterized in that lattice column is hung in steel reinforcement cage
When lattice column position deviation range be ± 25 ~ 38mm, perpendicularity deviation≤L/250, lattice column corner≤2 ° ~ 5 °.
8. subway station lattice column construction method according to claim 1, which is characterized in that lattice column is inserted into steel reinforcement cage
Section catercorner length is less than the diameter of steel reinforcement cage.
9. subway station lattice column construction method according to claim 1, which is characterized in that stand column pile lower concrete is at least
It pours in three times, pours height is at least stand column pile height 1/5th for the first time, pour height for the second time and be at least column
Stake height half, third time complete residual altitude concreting, pour each time after the completion of need to backfill it is closely knit after again
It is poured next time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811622500.3A CN109723081A (en) | 2018-12-28 | 2018-12-28 | Subway station lattice column construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811622500.3A CN109723081A (en) | 2018-12-28 | 2018-12-28 | Subway station lattice column construction method |
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Family
ID=66296554
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110411430A (en) * | 2019-07-30 | 2019-11-05 | 中铁十二局集团有限公司 | The survey of forced centering observation pier sets Construction Method of Metro Station |
| CN110685295A (en) * | 2019-09-16 | 2020-01-14 | 中国二十冶集团有限公司 | Bored concrete pile shaped steel combination assembled tower crane basis |
| CN112012222A (en) * | 2020-08-27 | 2020-12-01 | 中交隧道工程局有限公司 | Construction system and construction method for hard rock stratum upright post pile in urban sensitive area |
-
2018
- 2018-12-28 CN CN201811622500.3A patent/CN109723081A/en active Pending
Non-Patent Citations (2)
| Title |
|---|
| 张茸: "浅谈格构柱安装施工质量控制", 《四川水泥》 * |
| 陈克济等: "《地铁工程施工技术》", 30 June 2014, 中国铁道出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110411430A (en) * | 2019-07-30 | 2019-11-05 | 中铁十二局集团有限公司 | The survey of forced centering observation pier sets Construction Method of Metro Station |
| CN110685295A (en) * | 2019-09-16 | 2020-01-14 | 中国二十冶集团有限公司 | Bored concrete pile shaped steel combination assembled tower crane basis |
| CN112012222A (en) * | 2020-08-27 | 2020-12-01 | 中交隧道工程局有限公司 | Construction system and construction method for hard rock stratum upright post pile in urban sensitive area |
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Application publication date: 20190507 |
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