CN106759350A - A kind of Extra-Deep Foundation Pit vertical lattice column positioning steering control system and application method - Google Patents
A kind of Extra-Deep Foundation Pit vertical lattice column positioning steering control system and application method Download PDFInfo
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- CN106759350A CN106759350A CN201710018140.5A CN201710018140A CN106759350A CN 106759350 A CN106759350 A CN 106759350A CN 201710018140 A CN201710018140 A CN 201710018140A CN 106759350 A CN106759350 A CN 106759350A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
- E02D13/04—Guide devices; Guide frames
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Abstract
The invention discloses a kind of Extra-Deep Foundation Pit vertical lattice column positioning steering control system and application method, described control system mainly includes：Alignment system, steering, auxiliary adjustment system；Described alignment system includes locating platform, lattice column, positioning timber, fastening screw, extended type nut；Described steering includes lead column, steel reinforcement cage, branch lift bracket, screw rod connection bracket；Described auxiliary adjustment system includes branch lift shoulder pole and regulation crowbar；Described control system is that locating platform is placed in into stake holes mouthful top ground after bored concrete pile drilling, boxed out from the middle of locating platform using lead column through, it is overall lattice column and steel reinforcement cage to insert and tie up weldering by 8 reinforcing bars, using being engaged for lead column and lattice column and being tightly fastened for fastening screw between the two, the purpose that absolute altitude, positioning in ground Indirect method lattice column are precisely controlled with steering, realization.
Description
Technical field
The present invention relates to construction engineering technical field, more particularly to a kind of vertical lattice column positioning of Extra-Deep Foundation Pit is turned to
Control system and application method.
Background technology
In the design process for carrying out foundation pit enclosure, scheme comparison is a highly important job.The supporting selected
Structure, should have the feasibility of construction, should be able to meet according to determined by engineering-environment foundation ditch protection class to foundation ditch water first
Prosposition is moved and the limitation of ground settlement is required, on the premise of above-mentioned requirements are met, then is determined after technology, Economic contrast final
Building enclosure pattern, the various factors during scheme comparison is analyzed, determine scientific and reasonable engineering proposal.
Foundation pit enclosure structure is primarily subjected to water pressure and soil pressure produced by Unloading, and by this pressure transmission
It is one kind interim barrier wall structure of construction for stablizing foundation ditch to support.Current cast-in-situ bored pile method has extensively in terms of foundation pit enclosure
Using being primarily referred to as the means such as excavating by machine drilling, steel pipe soil compaction or manpower in engineering site stake formed in foundation soil
Hole, and steel reinforcement cage, concrete perfusion and the stake made are placed in it, different according to forming hole method, it is heavy that bored concrete pile can be divided into again
Several classes such as pipe perfusion pile, cast-in-situ bored pile and digging hole filling pile.Cast-in-situ bored pile is the one kind classified by pile making method and define
Pile-type.
When southern soft clay area carries out deep footing groove enclosing structure design, more using concrete inner supporting structure, support is vertical
Undertaken using combined vertical pole more than load.Combined vertical pole bottom is cast-in-situ bored pile, and top is combined steel column, generally
It is lattice column.Southern soft clay area, because of the site requirements of mechanized construction, foundation pit enclosure pile foundation engineering is general in ground construction,
And when supporting absolute altitude on construction ground below earth's surface, corresponding lattice capital also in earth's surface certain depth below, then according to normal
Rule utilize positioning, the absolute altitude of hangs muscle auxiliary construction process, lattice column to would become hard to ensure with construction precision is turned to.If lattice column is positioned
Or steering deviation is excessive, and spacer bar will be caused to bring very big inconvenience to construction normally through lattice column, locates anyway
Reason brings the input of extra charge, it is also possible to influence is brought on total lever factor.In addition, Design of Main Structure drawing is by structure sometimes
Post borrows lattice column increases arrangement of reinforcement formation steel reinforced concrete stiffened column, and such construction deviation control will be more important.
The content of the invention
Present invention solves the technical problem that there is provided a kind of vertical supporting lattice column for Extra-Deep Foundation Pit and positioning, turning
To control system and application method, the system is capable of absolute altitude, center and the steering of precise control lattice column, is subsequent handling
Smooth construction provides advantage.
The technical scheme is that：A kind of vertical lattice column positioning steering control system of Extra-Deep Foundation Pit, mainly includes：
Alignment system, steering, auxiliary adjustment system；Described alignment system includes locating platform, lattice column, positioning timber, tight
Gu screw rod, extended type nut；Described steering includes lead column, steel reinforcement cage, branch lift bracket, screw rod connection bracket；It is described
Auxiliary adjustment system include branch lift shoulder pole and regulation crowbar；Rectangular opening is left at described locating platform center, can hold steel reinforcement cage
Passed freely through with lead column, be placed in stake holes mouthful top ground, described lead column is inserted from the middle of locating platform, lower end insertion
Lattice column is engaged with lattice column top, and described lattice column is inserted steel reinforcement cage and fixed using reinforcement welding, described steel reinforcement cage
In insertion stake holes, described fastening screw is two, arrangement corresponding with lead column, lattice column end screw rod connection bracket, into
To being arranged in lead column both sides, lead column and lattice column are connected, be integrally formed both.
Further, described fastening screw includes screw rod, nut, screw thread, described screw rod, nut, the performance of screw thread
Standard is the combined value of all loads produced in lead column, lattice column, steel reinforcement cage and construction should be able to be born after tightening.
Further, shaped steel is identical with lattice column specification used by described lead column, and length is according to lattice column and ground
Terrestrial reference fluctuating situation high calculates that length notices that lead column goes out ground level and should meet downcomer and pour coagulation preferably within 9 meters
Native Clearance requirement.
Further, the lead column angle steel of described insertion lattice column should be identical with lattice column angle steel, is being oriented to column bottom
Weldering 1 is tied up in inner side with 4 angle steel of lattice column respectively, and plug ends cut outer groove, makes four angle steel ends be in integrally needle-like, so as to
Smoothly insert lattice column；Plug length is preferably 50-80 centimetres, so can just ensure that lead column plug can be inserted freely into lattice
Post, and without big gap excessively.
A kind of application method of the vertical lattice column positioning steering control system of Extra-Deep Foundation Pit is：
Step one：Pile body center is determined using ground cross positioning timber, rig is drilled into design stake holes depth, removes afterwards
Rig；Lay locating platform and locating platform is completely superposed with lattice axis of a cylinder line of symmetry, using ground cross spacing timber
Stake auxiliary completes positioning, then with the absolute altitude of spirit level measurement and positioning platform, with horizon rule leveling locating platform；
Step 2：The steel reinforcement cage that will be processed using crane is hung to stake holes, and shoulder pole is lifted using shaped steel branch in aperture
Mount on locating platform, loosen steel wire rope；Prefabricated lattice column is hung the aperture reinforcing bar described in insertion using crane
Cage top, vertically hovers after meeting intubating length, is afterwards welded lattice column and steel reinforcement cage cage bar using 8 reinforcing bars of certain length
Connect and be integrally formed；Crane is continuing with to continue, to lattice column and steel reinforcement cage is hung in stake holes, to be adjusted using crowbar during hanging
Whole lattice column is turned to, should be basic at locating platform rectangular apertures center, and four sides are parallel two-by-two；When crane transfers lattice column extremely
During aperture, the laterally inserted lattice column neutral of shoulder pole is lifted using shaped steel branch, mounted on locating platform, loosen steel wire rope；Using rise
The lead column of crane loading predetermined length, lattice column is inserted by lower plug, and post and lattice column two are directed to using fastening screw
The screw rod connection bracket of side is connected, and is integrally formed, when described fastening screw is connected, branch of the gland at the top of lead column
Lift bracket end, in lattice column branch lift bracket end, application welding machine is by nut and lattice column after bolt and nut is tightened for screw thread section
Screw rod bottom screw thread firmly, to back-out screw rod at the top of lead column, is moved back silk by the branch lift bracket full weld at end from nut, is reached
Requirement is used in turn to screw rod；
Step 3：After lead column, lattice column and steel reinforcement cage reach designed elevation, using shaped steel branch lift shoulder pole branch lift lead column
The branch lift bracket of top both sides, and be shelved on rectangle locating platform；Control lattice column and the position relationship of locating platform, utilize
Crowbar finely tunes lattice column center and steering, and the mark of lattice column and steel reinforcement cage is finely tuned from the branch lift shoulder pole of different model size
It is high.All fine settings are fixed the shaped steel branch lift shoulder pole spot welding of branch lift lead column using electric welding machine after specification error range is met
On locating platform；Borehole cleaning, downcomer, concrete placed under water.
Further, described shaped steel is H profile steel, according to the depth-width ratio of different stress demand reasonable distribution sectional dimensions,
Meet the welding condition of mechanical property requirements, for steel core post in reinforced concrete frame structure post, with excellent mechanical property and
Superior performance, structural strength is high, and modulus of section is big, when the condition of carrying is identical, can save metal 10-15%, steel knot
The standard width of a room in an old-style house of structure is big than the standard width of a room in an old-style house of concrete structure by 50%, and plasticity and pliability are good, and structural stability is high, it is adaptable to bear vibration
The building structure big with shock loading, anti-natural calamity ability is strong, is particularly well-suited to the soft building structure of some soil properties.
Compared with prior art, system of the invention has advantages below：
(1) control accuracy is high：Under the conditions of design lattice column withstands on below ground certain depth, being capable of precise control lattice
The center of post, absolute altitude and steering, make lattice column construction precision be effectively controlled.
(2) duration is effectively shortened：Without welding hangs muscle on lattice column or steel reinforcement cage, shortening carries out lattice column using hangs muscle
Absolute altitude, positioning, steering carry out time of fuzzy adjustment；In addition, saved because lattice column positioning, turn to deviation it is big it is bringing with it is each
The associated loss that expenses and the construction delay such as the artificial, material that unit is held consultation and processed bring.
(3) it is used in turn rate high：The all critical pieces of the present invention are section steel material making, are hardly damaged, can be repeatedly all
Turn to use.
(4) remarkable in economical benefits：Compared with general construction technology, in application process, hoisting and hanging process is only for the present invention
Can be completed using 1 equipment, and application method is easy, it is easy to grasp, the input of extra charge can be greatly reduced after use, pass through
Ji benefit is obvious.
Brief description of the drawings
Fig. 1 is a kind of vertical supporting lattice column positioning, the steering control system schematic diagram that patent of the present invention is proposed；
Fig. 2 be mouthful connection of lead column and lattice post holes and synchronously positioned, turned to the node technique signal of first successive step
Figure；
Fig. 3 is locating platform, lead column control lattice column plane positioning, the plane way schematic diagram for turning to.
Wherein, 1- lead columns；2- locating platforms；3- fastening screws；4- lattice columns；5- extended type nuts；6- stake holes；7- steel
Muscle cage；8- branch lifts bracket；9- screw rods connect bracket；10- positions timber；11- branch lifts shoulder pole；12- adjusts crowbar.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with accompanying drawing of the invention,
Technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is the present invention one
Divide embodiment, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making
The every other embodiment obtained under the premise of creative work, belongs to the scope of protection of the invention.
For ease of the understanding to the embodiment of the present invention, below by taking the space engineering of Suzhou underground as an example, with reference to accompanying drawing to this
The application method of invention is further illustrated.
Suzhou underground space engineering be F3/B3 structure, 2.5 meters of ground elevation, 17.6 meters of excavation of foundation pit depth, certain
Subregion supporting scheme is：5.5 meters of top soil nail wall i=1 high:2.18 sloping timberings, 6~8 meters of indwelling one-level platform wide, bottom is adopted
With the road of fender post+2 concrete support, cast-in-situ bored pile is long 25 meters under stand column pile, 14.75 meters of lattice column length, lattice column apex distance
About 6.5 meters of construction ground.1000 × 1000 millimeters of supporting section, 460 × 460 millimeters of lattice column section, support lattice column center
On support center line, steering should be orthogonal with main Impact direction is supported.
As shown in Figure 1 and Figure 2, a kind of vertical lattice column positioning steering control system of Extra-Deep Foundation Pit, mainly includes：Positioning
System, steering, auxiliary adjustment system；Alignment system includes locating platform 2, lattice column 4, positioning timber 10, fastening screw
3rd, extended type nut 5；Steering includes lead column 1, steel reinforcement cage 7, branch lift bracket 8, screw rod connection bracket 9；Auxiliary adjustment system
System includes branch lift shoulder pole 11 and regulation crowbar 12.
Rectangular opening is left at the center of locating platform 2, can hold steel reinforcement cage 7 and lead column 1 is passed freely through, and is placed in stake holes mouthful top
Ground, the described insertion from the middle of locating platform 2 of lead column 1, lower end is inserted lattice column 4 and is engaged with the top of lattice column 4, described
Lattice column 4 is inserted steel reinforcement cage 7 and is fixed using reinforcement welding, in the described insertion stake holes 6 of steel reinforcement cage 7, described fastening screw 3
It is two, with lead column 1, the end screw rod connection corresponding arrangement of bracket 9 of lattice column 4, is arranged in pairs at the both sides of lead column 1, even
Lead column 1 and lattice column 4 are connect, both are integrally formed.
Fastening screw 3 includes screw rod, nut, screw thread, and described screw rod, nut, the performance standard of screw thread are after tightening
The combined value of all loads of generation in lead column 1, lattice column 4, steel reinforcement cage 7 should be able to being born and being constructed.
Shaped steel used by lead column 1 is identical with the specification of lattice column 4, and length is according to lattice column 4 and ground site elevation fluctuating feelings
Condition calculates that length notices that lead column 1 goes out ground level and should meet downcomer and casting concrete Clearance requirement preferably within 9 meters.
Insert lattice column 4 the angle steel of lead column 1 should be identical with the angle steel of lattice column 4, the bottom inside of lead column 1 respectively with lattice column 4 four
Individual angle steel ties up weldering 1, and plug ends cut outer groove, makes four angle steel ends integrally in needle-like, smoothly to insert lattice column；Insert
Head length is preferably 65 centimetres, so can just ensure that lead column plug can be inserted freely into lattice column, and without big gap excessively.
The application method for positioning steering control system using the vertical supporting lattice column of the embodiment of the present invention is as follows：
(1) line setting of stake holes 6：As shown in figure 3, the center of stand column pile pile body 6 is measured using measuring instrument, it
4 positioning timbers 4 for setting cross are surveyed afterwards, and the cross line intersection point for positioning timber 4 is the center of stake holes 6, direction and lattice
The steering of post is consistent, about 3 meters of cross wire length.
(2) drilling is completed：The center drilling of drill bit of drilling machine centering stake holes 6 creep into, during note degree control, to design
Drilling is completed after hole depth, rig is moved out.
(3) locating platform is laid：Crane gear lifts locating platform 2, it is desirable to its central symmetry axes and four spacing timbers
The cross intersection of stake 10 should be completely the same with center.
(4) steel reinforcement cage is hung：Complete the spreading of steel reinforcement cage 7 and hang according to existing plan, to stake holes 6, the top of steel reinforcement cage 7
Mounted using shaped steel shoulder pole away from the about 3.5 meters of positions long of locating platform 2 and loosen suspension hook after locating platform 2.
(5) lattice column is hung：Suspension hook is reliably connected with the lattice column lifting hole(eyelet) of 14.75 meters of long sizes using snap ring, is lifted by crane
Lattice column 4 is vacantly inserted perpendicularly into the steel reinforcement cage 7 being shelved on locating platform 2, intubating length 3m.Using 8 steel of certain length
Muscle, per face, lattice column 4 and steel reinforcement cage 7 are welded into entirety by 2.
(6) continue to hang lattice column：Lifting lattice column 4, extraction mounts the shaped steel shoulder pole at the top of steel reinforcement cage 7, under continuation
Put lattice column 4, during with the rectangle of locating platform 2 box out four sides contrast, adjust 4 turns of lattice column at any time using crowbar 12 is adjusted
To, it is ensured that four sides is parallel and placed in the middle two-by-two.When about 1 meter of 4 apex distance locating platform 2 of lattice column, shaped steel shoulder pole is inserted, by lattice column
1 mounts on locating platform 2, loosens suspension hook.
(7) penetrate the screw rod that lead column 1 pushes up with 6.5 meters of supporting fastening screws 3 of lead column long 1 by 2 and be connected bracket 9
In hole, fastening screw 3 and lattice column 4 are fixed using the interim colligation of galvanized wire.Lifting lead column 1, is vacantly vertically directed to the bottom of post 1
Plug insertion is mounted in the lattice column 4 on locating platform 2, notices that lead column 1 is connected bracket 9 with the screw rod on lattice column 4 and answers
In the same face, so that fastening screw 3 is vertically connected with.
(8) lead column and lattice column are connected：During the insertion lattice column 4 of lead column 1, by 2 fastening screws and lattice column
The galvanized wire of tentative unclamps, the screw rod connection bracket 9 at the top of alignment lattice column 4, bolt hole is penetrated, using extended type nut 5
It is directed to post 1 and is connected integral with lattice column 4.Extended type nut 5 is connected the full weld of bracket 9 with screw rod firmly using electric welding machine,
Be careful not to hurt screw rod screw thread, so that screw rod smoothly moves back silk, after the completion of see Fig. 2.
(9) continue to hang lead column：Lifting decentralization lead column 1, during boxed out four sides pair with the rectangle of locating platform 2
Than using the steering for adjusting crowbar 12 and adjusting at any time lattice column 4, it is ensured that four sides is parallel and placed in the middle two-by-two.
(10) lead column indirect control lattice column absolute altitude：Lead column 1 hang substantially in place after, using the interim frame of shaped steel shoulder pole
Lead column 1 is put to locating platform 2.Using spirit level check locating platform 4 top surface absolute altitude, calculate lead column 1 top with
Distance between locating platform 2, from the shaped steel shoulder pole 11 of suitable specification, to mount the top branch lift bracket of lead column 1 flat to positioning
It is high whether accurate by the top mark of lead column 2 top mark for checking lattice column 4 high on platform 2.
(11) fine setting lead column indirect control lattice column is turned to and center：Lead column 2 is finely tuned using crowbar 12 is adjusted
Positioning with turn to, until error meets specification and drawing requirement
(12) fixed guide post：It is using electric welding machine that shaped steel shoulder pole 11 and the spot welding of locating platform 2 is reliably fixed, it is indirectly fixed
The center of lattice column with turn to, after the completion of referring to Fig. 1, Fig. 3.
(13) borehole cleaning, downcomer, concrete placed under water, during note should not excessively collide disturbance lead column, lattice
Post and steel reinforcement cage, it is to avoid the absolute altitude of lattice column, positioning change with steering.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
Modified with to the technical scheme described in previous embodiment, or equivalent is carried out to which part technical characteristic；And
These modifications are replaced, and do not make the spirit and model of the essence disengaging embodiment of the present invention technical scheme of appropriate technical solution
Enclose.
Claims (6)
1. a kind of vertical lattice column of Extra-Deep Foundation Pit positions steering control system, it is characterised in that mainly include：Alignment system,
Steering, auxiliary adjustment system；Described alignment system includes locating platform (2), lattice column (4), positioning timber (10), tight
Gu screw rod (3), extended type nut (5)；Described steering includes that lead column (1), steel reinforcement cage (7), branch lift bracket (8), spiral shell
Bar connects bracket (9)；Described auxiliary adjustment system includes that branch lifts shoulder pole (11) and regulation crowbar (12)；Described locating platform
(2) rectangular opening is left at center, can hold steel reinforcement cage (7) and lead column (1) is passed freely through, and is placed in stake holes mouthful top ground, described
Lead column (1) insert in the middle of the locating platform (2), lower end is inserted lattice column (4) and is engaged with the top of lattice column (4), described
Lattice column (4) is inserted steel reinforcement cage (7) and is fixed using reinforcement welding, and described steel reinforcement cage (7) is inserted in stake holes (6), described
Fastening screw (3) is two, connects bracket (9) corresponding arrangement with lead column (1), lattice column (4) end screw rod, in pairs arrangement
In lead column (1) both sides, lead column (1) and lattice column (4) are connected, be integrally formed both.
2. a kind of vertical lattice column of Extra-Deep Foundation Pit as claimed in claim 1 positions steering control system, it is characterised in that institute
The fastening screw (3) stated includes screw rod, nut, screw thread, and described screw rod, nut, the performance standard of screw thread is should after tightening
The combined value of all loads of generation in lead column (1), lattice column (4), steel reinforcement cage (7) being born and being constructed.
3. a kind of vertical lattice column of Extra-Deep Foundation Pit as claimed in claim 1 positions steering control system, it is characterised in that institute
Shaped steel is identical with lattice column (4) specification used by the lead column (1) stated, and length rises and falls according to lattice column (4) and ground site elevation
Situation calculates that length notices that lead column (1) goes out ground level and should meet downcomer and casting concrete headroom preferably within 9 meters
It is required that.
4. a kind of vertical lattice column of Extra-Deep Foundation Pit as claimed in claim 1 positions steering control system, it is characterised in that institute
Lead column (1) angle steel for the insertion lattice column (4) stated should be identical with lattice column (4) angle steel, in lead column (1) bottom inside difference
Weldering 1 is tied up with (4) 4 angle steel of lattice column, plug ends cut outer groove, make four angle steel ends be in integrally needle-like；Plug length
Preferably 50-80 centimetres.
5. a kind of vertical lattice column of Extra-Deep Foundation Pit as claimed in claim 1 positions steering control system, it is characterised in that make
It is with method：
Step one：Timber (10) is positioned using ground cross and determines pile body center, rig is drilled into design stake holes (6) deeply, afterwards
Remove rig；Lay locating platform (2) and locating platform (2) is completely superposed with lattice column (4) Axisymmetric Distributed Line, using ground
Cross positions timber (10) auxiliary and completes positioning, then with the absolute altitude of spirit level measurement and positioning platform (2), uses horizon rule leveling
Locating platform (2)；
Step 2：The steel reinforcement cage (7) that will be processed using crane is hung to stake holes (6), lifts flat using shaped steel branch in aperture
Load (11) is mounted on locating platform (2), loosens steel wire rope；Prefabricated lattice column (4) is hung into insertion institute using crane
Aperture steel reinforcement cage (7) top stated, vertically hovers, afterwards using 8 reinforcing bars of certain length by lattice after meeting intubating length
Post (4) is welded into entirety with steel reinforcement cage (7) cage bar；Be continuing with crane continue to hang in stake holes (6) lattice column (4) with
Steel reinforcement cage (7), adjusts lattice column (4) and turns to during hanging using crowbar (12), should be basic in locating platform (2) rectangular apertures
Center, and four sides are parallel two-by-two；When crane transfers lattice column (4) to aperture, lift shoulder pole (11) using shaped steel branch and laterally insert
Enter lattice column (4) neutral, mount on locating platform (2), loosen steel wire rope；Use the lead column of crane loading predetermined length
(1) lower plug, is inserted into lattice column (4), be directed to post (1) using fastening screw is connected with the screw rod of lattice column (4) both sides
Bracket is connected, and is integrally formed；
Step 3：After lead column (1), lattice column (4) and steel reinforcement cage (7) reach designed elevation, shoulder pole (11) is lifted using shaped steel branch
The branch that branch lifts lead column (1) top both sides lifts bracket (8), and is shelved on rectangle locating platform (2)；Control lattice column (4) with
The position relationship of locating platform (2), finely tunes lattice column (4) center and steering, from different model size using crowbar (12)
Branch lifts shoulder pole (11) to finely tune the absolute altitude of lattice column (4) and steel reinforcement cage (7).All fine settings are sharp after specification error range is met
The shaped steel branch that branch lifts lead column (1) is lifted into shoulder pole (11) spot welding with electric welding machine to be fixed on locating platform (2)；Borehole cleaning, downcomer,
Concrete placed under water.
6. a kind of vertical lattice column of Extra-Deep Foundation Pit as claimed in claim 5 positions the application method of steering control system, its
It is characterised by, when described fastening screw (3) is connected, branch lift bracket (8) end of gland at the top of lead column (1), screw thread
Section lifts bracket (8) end in lattice column branch, and the branch of nut and lattice column (4) end is lifted ox by application welding machine after bolt and nut is tightened
Screw rod bottom screw thread firmly, to back-out screw rod at lead column (1) top, is moved back silk by leg (8) full weld from nut, reaches spiral shell
Bar is used in turn requirement.
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| CN201710018140.5A CN106759350B (en) | 2017-01-11 | 2017-01-11 | A kind of application method of the vertical lattice column positioning steering control system of Extra-Deep Foundation Pit |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108239980A (en) * | 2018-02-08 | 2018-07-03 | 中铁上海工程局集团有限公司 | One kind is used for the prefabricated congruent pile positioning device of station building enclosure and its application method |
| CN108643183A (en) * | 2018-06-01 | 2018-10-12 | 北京市地质工程公司 | A kind of positioning guide mechanism and its application for lattice column positioning |
| CN109183812A (en) * | 2018-11-01 | 2019-01-11 | 深圳市工勘岩土集团有限公司 | The construction method of combined type deep foundation pit supporting structure |
| CN109295984A (en) * | 2018-09-11 | 2019-02-01 | 中建三局集团有限公司 | The device and construction method of a kind of positioning of lattice column and verticality, rotation angle control |
| CN109706939A (en) * | 2019-01-14 | 2019-05-03 | 杭州江润科技有限公司 | Deep basal pit prestressing combination bracing members and construction method |
| CN111877320A (en) * | 2020-07-21 | 2020-11-03 | 湖南北山建设集团股份有限公司 | Integrated construction method for foundation pit support system cast-in-place pile and steel lattice column |
| CN115012425A (en) * | 2022-06-10 | 2022-09-06 | 中国建筑第六工程局有限公司 | Positioning construction method for foundation pit support structure upright column pile and lattice column |
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| CN108239980A (en) * | 2018-02-08 | 2018-07-03 | 中铁上海工程局集团有限公司 | One kind is used for the prefabricated congruent pile positioning device of station building enclosure and its application method |
| CN108239980B (en) * | 2018-02-08 | 2023-09-15 | 中铁上海工程局集团有限公司 | Positioning device for prefabricated superposed piles of station building envelope and use method of positioning device |
| CN108643183A (en) * | 2018-06-01 | 2018-10-12 | 北京市地质工程公司 | A kind of positioning guide mechanism and its application for lattice column positioning |
| CN109295984A (en) * | 2018-09-11 | 2019-02-01 | 中建三局集团有限公司 | The device and construction method of a kind of positioning of lattice column and verticality, rotation angle control |
| CN109183812A (en) * | 2018-11-01 | 2019-01-11 | 深圳市工勘岩土集团有限公司 | The construction method of combined type deep foundation pit supporting structure |
| CN109706939A (en) * | 2019-01-14 | 2019-05-03 | 杭州江润科技有限公司 | Deep basal pit prestressing combination bracing members and construction method |
| CN109706939B (en) * | 2019-01-14 | 2020-09-15 | 杭州江润科技有限公司 | Deep foundation pit prestress combined steel support and construction method |
| CN111877320A (en) * | 2020-07-21 | 2020-11-03 | 湖南北山建设集团股份有限公司 | Integrated construction method for foundation pit support system cast-in-place pile and steel lattice column |
| CN115012425A (en) * | 2022-06-10 | 2022-09-06 | 中国建筑第六工程局有限公司 | Positioning construction method for foundation pit support structure upright column pile and lattice column |
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