CN106759477A - A kind of sheltered reverse excavation steel pipe column positioning construction method - Google Patents
A kind of sheltered reverse excavation steel pipe column positioning construction method Download PDFInfo
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- CN106759477A CN106759477A CN201611217751.4A CN201611217751A CN106759477A CN 106759477 A CN106759477 A CN 106759477A CN 201611217751 A CN201611217751 A CN 201611217751A CN 106759477 A CN106759477 A CN 106759477A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/04—Making large underground spaces, e.g. for underground plants, e.g. stations of underground railways; Construction or layout thereof
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Abstract
The present invention relates to underground engineering construction construction field, and in particular to a kind of sheltered reverse excavation steel pipe column positioning construction method.Including following steps：(1) steel pipe column pretreatment；(2) steel pipe column locator is installed；(3) locating platform is installed；(4) steel pipe column absolute altitude positioning；(5) steel pipe column positioning.The present invention is arranged on steel pipe column by by locator, when being positioned to steel pipe column, operate the locator and adjust steel pipe column center by being manually entered in steel pipe column, and taper locator is installed in uplift pile top of concrete without as conventional method, the method can omit embedded steel sleeve, pump drainage mud, broken pile head and installation taper locator operation, solve existing steel sleeve retaining wall positioning mode and there is tedious process, mud is difficult, manually enter hole operating risk problem high, the method constructing operation is simple, it is safe, shorten the steel pipe column construction period, reduce engineering cost, with good economy.
Description
Technical field
The present invention relates to underground engineering construction construction field, and in particular to a kind of sheltered reverse excavation steel pipe column positions construction party
Method.
Background technology
Sheltered reverse excavation is that after being excavated to certain depth downwards by ground, by top seal, remaining bottom engineering is in envelope
Constructed under the top board for closing, i.e., successively excavated and built agent structure from top to bottom until base plate.Typically first in ground surface
Do the building enclosure and middle pile of foundation ditch downwards, diaphram wall or curtain pile, intermediate supports are used more foundation pit enclosure structure
It is agent structure middle standing pillar in itself is utilized to reduce construction costs more.The top layer soil body to agent structure top board can then be excavated
Ground elevation, top board is poured by the use of the soil body not excavated as clay model.Top board can be as strong stull together, to prevent
Building enclosure deforms in foundation ditch, after road is restored after backfill, resumes traffic.
With developing rapidly for city and urban track traffic, increasing subway station is built in heavy traffic, is built
Build thing is intensive, underground utilities are crisscross city busy section of town and heavy traffic location.Because sheltered reverse excavation is handed over ground
It is logical to disturb less, be conducive to environmental protection, it has also become the midtown of the external heavy traffic of Now Domestic is built subway station and taken
A kind of effective ways.
In sheltered reverse excavation construction, construction stage and operational phase vertical load are mainly born with steel-pipe pile, to steel pipe
The precision and degree control of post are proposed at a relatively high requirement, and steel pipe column construction positioning also turns into sheltered reverse excavation engineering
One of heavy difficult point in construction.The construction of steel pipe column positioning in the prior art uses HPE engineering methods and steel sleeve retaining wall positioning mode,
But both construction methods be present：
Positioning precision cannot ensure after HPE engineering methods exceed certain depth, and cost is high, cannot be inserted after pile foundation concrete initial set
Enter positioning, engineering accident risk is high.
Steel sleeve retaining wall positioning mode is under the protection of steel sleeve, manually to enter in the cleaning hole of hole after slurry coat method, in resistance to plucking
Taper locator is installed on pile concrete, then steel pipe column is hung to hole, by the automatic guiding function of taper locator, essence
Really complete the bottom positioning of steel pipe column.But needed by following operation before taper locator is installed：Embedded steel sleeve (prevents from taking out
Collapse hole after mud), pump drainage mud, manually enter hole broken pile head and manually enter hole taper locator is installed.The engineering method engineering time
It is long, larger is influenceed on the duration；The mud extracted out from hole, its intractability is big, has a strong impact on the environment of job site；For super
In the construction of deep foundation pit steel tube post, manually enter hole and abolish pile crown laitance, operating environment is poor, and the time is long, and risk is high.
The content of the invention
Present invention aim at：In being constructed in sheltered reverse excavation steel pipe column positioning, existing steel sleeve retaining wall positioning mode
There is tedious process, mud is difficult, manually enter hole operating risk problem high, the present invention provides a kind of sheltered reverse excavation steel pipe
Post positioning construction method, by using the construction method, when being positioned to steel pipe column, without using steel sleeve retaining wall, nothing
Need pump drainage mud, taper locator is installed without manually entering hole broken pile head and without manually entering hole, efficiently solve existing skill
In art there is tedious process in steel sleeve retaining wall positioning mode, and mud is difficult, manually enter hole operating risk problem high.
To achieve these goals, the technical solution adopted by the present invention is：
A kind of sheltered reverse excavation steel pipe column positioning construction method, including following steps：
A, steel pipe column is pre-processed；
B, circumferentially uniformly installed in steel pipe column bottom and can adjust the locator of steel pipe column center；
C, installation locating platform；
D, absolute altitude positioning is carried out to steel pipe column；
E, steel pipe column is positioned.
By the locator for being mounted with to can be used in adjusting steel pipe column center in steel pipe column bottom, enter to steel pipe column
During row positioning, can operate the locator and adjust steel pipe column center by being manually entered in steel pipe column, make steel pipe column
Perpendicularity meets construction requirement, and without as conventional method by uplift pile top of concrete installation taper locator come
Positioning steel tube post, therefore the method can omit embedded steel sleeve, pump drainage mud, manually enter hole broken pile head and manually enter Kong An
Dress taper locator operation, efficiently solves steel sleeve retaining wall positioning mode in the prior art and there is tedious process, and mud is difficult,
Manually enter hole operating risk problem high, this steel pipe column localization method constructing operation is simple, safe, effectively shortens steel pipe
The post construction period, engineering cost is greatly reduced, with good economy.
Used as preferred scheme of the invention, in stepb, the locator includes transmission device and support meanss；It is described
Support meanss include the bearing of supporting plate and outer ring and support plate weld；The transmission device includes being fixedly linked with steel pipe column
Thread bush, is equipped with screw rod in the thread bush, described screw rod one end is extended radially in steel pipe column along steel pipe column, the other end with
The inner ring welding of bearing.
Because the thread bush of the locator is fixedly linked with steel pipe column, when steel pipe column positioning action is carried out, by artificial
Screw rod is rotated in into steel pipe column, supporting plate will be driven to expand outwardly back brace offer level on uplift pile hole wall after screw rod movement
Counter-force, makes the center of steel pipe column be moved, and the locator structure is simple, and easy to manufacture can quickly adjust steel pipe column
Perpendicularity.
Used as preferred scheme of the invention, in step a, the steel pipe column pretreatment includes following steps：
A1, steel pipe column docking：It is integral that the steel pipe column that merogenesis is processed carries out docking at the scene；
A2, steel pipe column perforate and concrete precasting：The perforate and in steel pipe column on steel pipe column by buoyancy calculations result
Pre-cast concrete；
A3, TOC chipping：By steel pipe column outer inclined-plane concrete chisel removal.
By docking pre-cast concrete in integral steel pipe column, the steel in pile foundation concreting process can be prevented
Tubing string floats, while by pre-cast concrete upper flat, facilitates locating personnel into being adjusted hanging down for steel pipe column in steel pipe column
Straight degree.
Used as preferred scheme of the invention, before step a1 is carried out, the steel pipe column need in advance use steel plate in processing
Back cover.By to steel pipe column sealing, convenience pre-cast concrete in steel pipe column.
Used as preferred scheme of the invention, the locator is at least three, in 1.0~1.5m at the top of pre-cast concrete
Position is along the circumferential direction uniformly installed on steel pipe column.It is easy to locating personnel to enter into steel pipe column using such design to pass through
Rotational positioner screw rod is adjusted the perpendicularity of steel pipe column.
As preferred scheme of the invention, in step c, after locating platform hangs, should measure super flat, after the completion of will positioning
Platform is fixed with ground.By to locating platform it is super it is flat after fixed with ground, so that it is guaranteed that accurately measurement and positioning platform top surface mark
It is high and prevent the locating platform in steel pipe column position fixing process to be moved.
Used as preferred scheme of the invention, in step d, first measurement and positioning platform top surface absolute altitude is transferred according to steel pipe column
After designed elevation and measurement result COMPREHENSIVE CALCULATING, two steel plate locator cards are welded on steel pipe column, steel pipe column is hung into uplift pile
It is suspended on the crossbeam of locating platform both sides by locator card after in hole.Passing through the position of welded locator card ensures that steel pipe column is expired
Foot puts designed elevation requirement, and steel pipe column top is suspended on locating platform, and due to Gravitative Loads, steel pipe column will be approximately at
Vertical state, then entered into steel pipe column by locating personnel the vertical of steel pipe column is adjusted by rotational positioner screw rod
Degree.
Used as preferred scheme of the invention, step e includes following steps：
E1, steel pipe column top plane positioning：After steel pipe column is lifted in locating platform centre bore, by total powerstation in locating rack
Stake position central point is made at top, and hangs plumb bob, and it is suitable for reading to be placed on steel pipe column using the positioning cross frame for processing, and by positioning
Level jack movement steel pipe column in platform, after plumb bob point is hung with positioning cross frame center superposition, enters to steel pipe column top
Row is fixed.
E2, steel pipe column perpendicularity positioning：To pre-cast concrete face position in steel pipe column under locating personnel, survey crew is in steel
By the way that plumb aligner cultellation is to pre-cast concrete face and transfers plumb bob, after plumb bob point overlaps with cultellation, locating personnel surveys on tubing string top
Dimension tubing string wall adjusts the perpendicularity of steel pipe column by rotational positioner screw rod with a distance from plumb bob line.
By in stake position central point overhung plumb bob, making plumb bob point and being placed in steel pipe column positioning cross frame center suitable for reading
Overlap, even if steel pipe column center suitable for reading and stake position center superposition, so as to complete steel pipe column top positioning, then by steel pipe column it is suitable for reading in
The heart by the way that cultellation is to pre-cast concrete top surface and transfers plumb bob, by adjusting steel pipe post jamb with a distance from plumb bob line, so that steel
Tubing string has preferable perpendicularity.
As preferred scheme of the invention, steel pipe column and locating platform are welded on one after the completion of the steel pipe column positioning
Rise.It is to further prevent the steel pipe column in pile foundation concreting process from rising phenomenon occur using such method.
In sum, by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
By the locator for being mounted with to can be used in adjusting steel pipe column center in steel pipe column bottom, enter to steel pipe column
During row positioning, can operate the locator and adjust steel pipe column center by being manually entered in steel pipe column, make steel pipe column
Perpendicularity meets construction requirement, and without as conventional method by uplift pile top of concrete installation taper locator come
Positioning steel tube post, therefore the method can omit embedded steel sleeve, pump drainage mud, manually enter hole broken pile head and manually enter Kong An
Dress taper locator operation, efficiently solves steel sleeve retaining wall positioning mode in the prior art and there is tedious process, and mud is difficult,
Manually enter hole operating risk problem high, this steel pipe column localization method constructing operation is simple, safe, effectively shortens steel pipe
The post construction period, engineering cost is greatly reduced, with good economy.
Brief description of the drawings
Fig. 1 is sheltered reverse excavation steel pipe column positioning construction method general structure schematic diagram of the invention.
Fig. 2 is the locator schematic diagram of sheltered reverse excavation steel pipe column positioning construction method of the invention.
Fig. 3 is that the locator of sheltered reverse excavation steel pipe column positioning construction method of the invention installs sectional view.
Fig. 4 is sheltered reverse excavation steel pipe column positioning construction method flow chart of the invention.
Marked in figure：1- locators, 11- thread bush, 12- sleeve pipes, 13- screw rods, 14- brake bars, 15- keep plates, 16- branch
Fagging, 17- bearings, 2- locating platforms, 3- uplift pile hole walls, 4- steel pipe columns, 5- pre-cast concretes, 6- resistance to plucking pile concretes.
Specific embodiment
Below in conjunction with the accompanying drawings, the present invention is described in detail.
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the present invention, not
For limiting the present invention.
Embodiment
The present invention provides a kind of sheltered reverse excavation steel pipe column positioning construction method；
As Figure 1-Figure 4, the sheltered reverse excavation steel pipe column positioning construction method in the present embodiment, including following step
Suddenly：
A, steel pipe column is pre-processed；
B, circumferentially uniformly installed in steel pipe column bottom and can adjust the locator of steel pipe column center；
C, installation locating platform；
D, absolute altitude positioning is carried out to steel pipe column；
E, steel pipe column is positioned.
By the locator for being mounted with to can be used in adjusting steel pipe column center in steel pipe column bottom, enter to steel pipe column
During row positioning, can operate the locator and adjust steel pipe column center by being manually entered in steel pipe column, make steel pipe column
Perpendicularity meets construction requirement, and without as conventional method by uplift pile top of concrete installation taper locator come
Positioning steel tube post, therefore the method can omit embedded steel sleeve, pump drainage mud, manually enter hole broken pile head and manually enter Kong An
Dress taper locator operation, efficiently solves steel sleeve retaining wall positioning mode in the prior art and there is tedious process, and mud is difficult,
Manually enter hole operating risk problem high, this steel pipe column localization method constructing operation is simple, safe, effectively shortens steel pipe
The post construction period, engineering cost is greatly reduced, with good economy.
In the present embodiment, in stepb, the locator 1 includes transmission device, brake apparatus and support meanss；It is described
Support meanss include supporting plate 16 and bearing 17, and the outer ring of the bearing 17 is welded with the plate face of supporting plate 16；The transmission device bag
Two thread bush 11 are included, is arranged in coaxial spaced and the sleeve pipe 12 by being disposed in outside thread bush 11 is connected, the thread bush 11
Screw rod 13 is inside equipped with, the one end of the screw rod 13 is extended radially in steel pipe column 4 along steel pipe column 4, the other end and the inner ring of bearing 17
Welding；The brake apparatus includes two brake bars 14 and three pieces of keep plates 15, and it is outer simultaneously that the keep plate 15 is sheathed on sleeve pipe 12
Welded with sleeve pipe 12, the brake bar 14 is welded after passing through keep plate 15 with supporting plate 16.
Because the thread bush of the locator is fixedly linked with steel pipe column, when steel pipe column positioning action is carried out, by artificial
Screw rod is rotated in into steel pipe column, supporting plate will be driven to expand outwardly back brace offer level on uplift pile hole wall after screw rod movement
Counter-force, makes the center of steel pipe column be moved, and the locator structure is simple, and easy to manufacture can quickly adjust steel pipe column
Perpendicularity.
In the present embodiment, in step a, the steel pipe column pretreatment includes following steps：
A1, steel pipe column docking：The merogenesis of steel pipe column 4 is machined to be transported to job site and be placed on docking platform and docked
And installation tool post, wherein, steel pipe column processing need in advance use steel plate back cover, tool post flange to use M30 with steel pipe column flange
Bolt connection, dismounting and tool post recycling after the completion of convenient positioning, tool post uses leak stopping king with steel pipe column seaming position
Closure, mud is diffused in steel pipe column in stake when preventing decentralization.
A2, steel pipe column perforate and concrete precasting：After the docking of steel pipe column 4 and tool post installation, by buoyancy calculations
Result perforate on steel pipe column carries out concrete precasting, using the steel plate closure aperture with bent anchor reinforcing bar after precoating.To ensure to apply
Working medium amount, landform mating type steel of the selection with certain height difference is made teeming stage, it is ensured that steel pipe column angle of inclination is not less than
15 degree, during cast, strengthen concrete workability, the control of the slump, and strengthen concrete tamping, it is ensured that steel pipe column is precoated coagulation
Native is closely knit.
A3, TOC chipping：After the initial set of pre-cast concrete 5, steel pipe column outer inclined-plane concrete chisel removal makes to precoat mixed
Solidifying soil upper flat.
Concrete precasting is carried out after by being docked to steel pipe column, the steel pipe column in pile foundation concreting process can be prevented
Float, while by the upper flat of pre-cast concrete 5, facilitate locating personnel into being adjusted the vertical of steel pipe column in steel pipe column
Degree.
In the present embodiment, the locator is four, in 1.0~1.5m positions at the top of pre-cast concrete along the circumferential direction
Uniformly it is installed on steel pipe column.It is easy to locating personnel to enter into using such design and passes through rotational positioner screw rod in steel pipe column
It is adjusted the perpendicularity of steel pipe column.
In the present embodiment, in step c, treat after the completion of rotary digging drilled as holes, carrying out locating platform 2 and hanging, locating platform 2 hangs
Discharge after finishing, should measure super flat, plan-position and level height are adjusted after finishing, and four spikes of platform are embedded in firmly with prior
Built-in fitting welding or expansion bolt in terrace are fixed, to increase the stability of locating platform.By to locating platform it is super it is flat after
Fixed with ground, so that it is guaranteed that accurate measurement and positioning platform top surface absolute altitude and preventing the locating platform in steel pipe column position fixing process from sending out
Raw movement.
In the present embodiment, in step d, after locating platform is horizontally mounted to be adjusted, the top surface mark of measurement and positioning platform 2
Height, after transferring designed elevation and measurement result COMPREHENSIVE CALCULATING according to steel pipe column, welds two steel plate locator cards, steel on steel pipe column
Tubing string is suspended on the crossbeam of locating platform both sides after hanging in stake by locator card, and locator card will ensure with the welding of steel pipe column
The weight of steel pipe column and pre-cast concrete can be born, it is ensured that steel pipe column elevation location is accurate, ensures that steel pipe column is generally in again vertical
Straight state.Passing through the position of welded locator card ensures that steel pipe column meets decentralization designed elevation requirement, and steel pipe column top is hanged
Hang on locating platform, due to Gravitative Loads, steel pipe column will be approximately at vertical state, then enter into steel pipe by locating personnel
The perpendicularity of steel pipe column is adjusted in post by rotational positioner screw rod.
In the present embodiment, step e includes following steps：
E1, steel pipe column top plane positioning：After steel pipe column 4 is lifted in the centre bore of locating platform 2, by total powerstation in positioning
Top of the trellis makes stake position central point, and hangs plumb bob, and it is suitable for reading to be placed on steel pipe column using the positioning cross frame for processing, and by fixed
Level jack movement steel pipe column in bit platform, after plumb bob point is hung with positioning cross frame center superposition, to steel pipe column top
It is fixed, plan-position control deviation is 2mm.
E2, steel pipe column perpendicularity positioning：After the completion of the positioning of steel pipe column top, locating personnel is climbed by the good steel of pre-production
Ladder needs to carry out gas detection by tool post mouthful is lower to steel pipe column pre-cast concrete face position, before lower opening, and sets up illumination and divulge information
Equipment, locating personnel needs medical fitness and is equipped with a series of security implementations such as safety rope, kit, and survey crew is in steel pipe column top
By the way that plumb aligner cultellation is to pre-cast concrete face and transfers plumb bob, after plumb bob point overlaps with cultellation, locating personnel utilizes tape measure at end
Measurement steel pipe post jamb adjusts the perpendicularity of steel pipe column by rotational positioner screw rod with a distance from plumb bob line.
By in stake position central point overhung plumb bob, making plumb bob point and being placed in steel pipe column positioning cross frame center suitable for reading
Overlap, even if steel pipe column center suitable for reading and stake position center superposition, so as to complete steel pipe column top positioning, then by steel pipe column it is suitable for reading in
The heart by the way that cultellation is to pre-cast concrete top surface and transfers plumb bob, by adjusting steel pipe post jamb with a distance from plumb bob line, so that steel
Tubing string has preferable perpendicularity.
In the present embodiment, steel pipe column and locating platform are welded using four A20 reinforcing bars after the completion of the steel pipe column positioning
Together.It is to further prevent from emerging in steel pipe column appearance in pile foundation concreting process using such method
As.
Specifically, steel pipe column 4 is carried out into steel plate back cover, the anti-floating of pre-cast concrete 5 and locating personnel is provided in steel pipe column
Standpoint, 4 locators are installed on the outside of steel pipe column at post inner concrete top face 1.5m, locator screw rod stretches into steel pipe
300mm in post.By being manually entered rotary screw in steel pipe column so that supporting plate 16 is moved toward the direction of uplift pile hole wall 3, finally
Support provides horizontal reacting force on uplift pile hole wall 3, to reach the purpose of steel pipe column bottom positioning.Steel pipe column is positioned at resistance to plucking for the first time
Implement after pile cages decentralization, tremie placing resistance to plucking pile concrete 6 is transferred by steel pipe column outside after the completion of positioning, and be close to
It is manually entered in steel pipe column before the uplift pile concrete initial set of steel pipe column bottom position and checks positioning, is carried out in steel pipe column after waiting by force
Pouring for residual concrete, completes the construction of steel pipe column.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in original of the invention
Any modification, equivalent and improvement for being made within reason etc., should be included within the scope of the present invention.
Claims (9)
1. a kind of sheltered reverse excavation steel pipe column positioning construction method, it is characterised in that including following steps：
A, steel pipe column is pre-processed；
B, circumferentially uniformly installed in steel pipe column bottom and can adjust the locator of steel pipe column center；
C, installation locating platform；
D, absolute altitude positioning is carried out to steel pipe column；
E, steel pipe column is positioned.
2. sheltered reverse excavation steel pipe column positioning construction method according to claim 1, it is characterised in that in stepb, institute
Stating locator includes transmission device and support meanss；The support meanss include the axle of supporting plate and outer ring and support plate weld
Hold；The transmission device includes the thread bush being fixedly linked with steel pipe column, and screw rod, the screw rod one are equipped in the thread bush
End is extended radially in steel pipe column along steel pipe column, and the other end is welded with the inner ring of bearing.
3. sheltered reverse excavation steel pipe column positioning construction method according to claim 2, it is characterised in that in step a, institute
Stating steel pipe column pretreatment includes following steps：
A1, steel pipe column docking：It is integral that the steel pipe column that merogenesis is processed carries out docking at the scene；
A2, steel pipe column perforate and concrete precasting：Perforate and precoated in steel pipe column on steel pipe column by buoyancy calculations result
Concrete；
A3, TOC chipping：By steel pipe column outer inclined-plane concrete chisel removal.
4. sheltered reverse excavation steel pipe column positioning construction method according to claim 3, it is characterised in that carrying out step a1
Before, the steel pipe column need in advance use steel plate back cover in processing.
5. sheltered reverse excavation steel pipe column positioning construction method according to claim 4, it is characterised in that the locator is extremely
It is less three, is along the circumferential direction uniformly installed on steel pipe column away from 1.0~1.5m positions at the top of pre-cast concrete.
6. sheltered reverse excavation steel pipe column positioning construction method according to claim 1, it is characterised in that in step c, it is fixed
After bit platform hangs, should measure super flat, after the completion of locating platform is fixed with ground.
7. sheltered reverse excavation steel pipe column positioning construction method according to claim 6, it is characterised in that in step d, first
Measurement and positioning platform top surface absolute altitude, after transferring designed elevation and measurement result COMPREHENSIVE CALCULATING according to steel pipe column, welds on steel pipe column
Two steel plate locator cards are connect, steel pipe column is suspended on the crossbeam of locating platform both sides after hanging in tensile pile hole by locator card.
8. sheltered reverse excavation steel pipe column positioning construction method according to claim 7, it is characterised in that step e include with
Under several steps：
E1, steel pipe column top plane positioning：After steel pipe column is lifted in locating platform centre bore, by total powerstation at the top of locating rack
Stake position central point is made, and plumb bob is hung, it is suitable for reading to be placed on steel pipe column using the positioning cross frame for processing, and by locating platform
Interior level jack moves steel pipe column, after plumb bob point is hung with positioning cross frame center superposition, steel pipe column top is consolidated
It is fixed.
E2, steel pipe column perpendicularity positioning：To pre-cast concrete face position in steel pipe column under locating personnel, survey crew is in steel pipe column
By the way that plumb aligner cultellation is to pre-cast concrete face and transfers plumb bob, after plumb bob point overlaps with cultellation, locating personnel measures steel on top
Tubing string wall adjusts the perpendicularity of steel pipe column by rotational positioner screw rod with a distance from plumb bob line.
9. sheltered reverse excavation steel pipe column positioning construction method according to claim 8, it is characterised in that the steel pipe column is determined
Steel pipe column is welded together with locating platform after the completion of position.
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| CN107675889A (en) * | 2017-08-04 | 2018-02-09 | 上海建工建集团有限公司 | Contrary sequence method steel pipe column vertical adjustment mould and vertical adjustment method |
| CN108265750A (en) * | 2018-02-02 | 2018-07-10 | 北京市政建设集团有限责任公司 | A kind of steel pipe column localization method |
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| CN108952007A (en) * | 2018-08-15 | 2018-12-07 | 中电建南方建设投资有限公司 | Construction is positioned manually in a kind of permanent steel column |
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| CN110485424A (en) * | 2019-09-12 | 2019-11-22 | 深圳市工勘岩土集团有限公司 | Deep basal pit underground structure contrary sequence method steel pipe column positioning device and positioning construction method |
| CN111676963A (en) * | 2020-06-12 | 2020-09-18 | 中电建南方建设投资有限公司 | Steel pipe upright post positioning device and positioning construction method thereof |
| CN112523227A (en) * | 2020-12-14 | 2021-03-19 | 中国葛洲坝集团第一工程有限公司 | Steel pipe column for underground space structure and construction method |
| CN112681294A (en) * | 2021-01-18 | 2021-04-20 | 中国一冶集团有限公司 | Concrete pipe pile |
| CN113718814A (en) * | 2021-09-02 | 2021-11-30 | 中铁二十局集团第三工程有限公司 | Pile foundation construction method and bridge pier construction method |
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| CN107227738A (en) * | 2017-08-03 | 2017-10-03 | 中铁十六局集团地铁工程有限公司 | A kind of location structure and its localization method for small space steel pipe column |
| CN107675889A (en) * | 2017-08-04 | 2018-02-09 | 上海建工建集团有限公司 | Contrary sequence method steel pipe column vertical adjustment mould and vertical adjustment method |
| CN108265750A (en) * | 2018-02-02 | 2018-07-10 | 北京市政建设集团有限责任公司 | A kind of steel pipe column localization method |
| CN108532618A (en) * | 2018-03-16 | 2018-09-14 | 无锡德林海环保科技股份有限公司 | A kind of underwater installation method of heavy caliber back covers steel pipe well |
| CN109629555A (en) * | 2018-06-21 | 2019-04-16 | 中铁十局集团第六工程有限公司 | Improve the positioning device of empty stake interpolation steel pipe column and the method for pile integrated construction |
| CN108952007A (en) * | 2018-08-15 | 2018-12-07 | 中电建南方建设投资有限公司 | Construction is positioned manually in a kind of permanent steel column |
| CN110004988B (en) * | 2019-02-11 | 2023-12-19 | 中国水电基础局有限公司 | Protection device and method for joint hole of underground diaphragm wall constructed by tube drawing method |
| CN110004988A (en) * | 2019-02-11 | 2019-07-12 | 中国水电基础局有限公司 | The protective device and method in a kind of extubation construction underground continuous wall connector hole |
| CN109930603A (en) * | 2019-03-27 | 2019-06-25 | 中国建筑第四工程局有限公司 | A kind of ultra-deep is inverse to make steel pipe column verticality control device and its application method |
| CN110485424A (en) * | 2019-09-12 | 2019-11-22 | 深圳市工勘岩土集团有限公司 | Deep basal pit underground structure contrary sequence method steel pipe column positioning device and positioning construction method |
| CN111676963A (en) * | 2020-06-12 | 2020-09-18 | 中电建南方建设投资有限公司 | Steel pipe upright post positioning device and positioning construction method thereof |
| CN112523227A (en) * | 2020-12-14 | 2021-03-19 | 中国葛洲坝集团第一工程有限公司 | Steel pipe column for underground space structure and construction method |
| CN112681294A (en) * | 2021-01-18 | 2021-04-20 | 中国一冶集团有限公司 | Concrete pipe pile |
| CN112681294B (en) * | 2021-01-18 | 2022-07-15 | 中国一冶集团有限公司 | Concrete pipe pile |
| CN113718814A (en) * | 2021-09-02 | 2021-11-30 | 中铁二十局集团第三工程有限公司 | Pile foundation construction method and bridge pier construction method |
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Application publication date: 20170531 |