CN106869196B - Screw rod for anchor slab basis jacks rectification and reinforcement of building method - Google Patents
Screw rod for anchor slab basis jacks rectification and reinforcement of building method Download PDFInfo
- Publication number
- CN106869196B CN106869196B CN201510929799.7A CN201510929799A CN106869196B CN 106869196 B CN106869196 B CN 106869196B CN 201510929799 A CN201510929799 A CN 201510929799A CN 106869196 B CN106869196 B CN 106869196B
- Authority
- CN
- China
- Prior art keywords
- anchor slab
- screw rod
- rectification
- pilot tunnel
- reinforcement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D35/00—Straightening, lifting, or lowering of foundation structures or of constructions erected on foundations
Abstract
The screw rod that the invention discloses a kind of for anchor slab basis jacks rectification and reinforcement of building method, and in particular to buildings or structures foundation is integral inclined or the rectification and reinforcement of building field of foundation settlement.Present invention determine that steel anchor slab rectification region and pilot tunnel position, drilling, fill in prefabricated girder steel, screw rod and nut are installed, dial gauge is installed, subregion recycles step by step screws in screw rod at a slow speed steadily from top to bottom, so that the classification of steel anchor slab is gradually raised to the jacking amount of production engineering specifications upwards；Pilot tunnel mouth is blocked using high-strength cement mortar, one of fine-stone concrete sealing ring is set around steel anchor slab outer rim, the pore grout region between anchor slab and basis carries out injecting treatment, that is, completes.The present invention reduces ground beneath excavated volumes, save a large amount of Reinforced Concrete Materials, and speed of application is fast, and operability and controllability are preferable, and the influence to superstructure is small, and securely and reliably, consolidation effect is preferable；High-strength bolt is in addition to tool jacks function, the stress that also serves as supporting arrangement, without resilience after processing.
Description
Technical field
The present invention relates to buildings or structures foundation is integral inclined or the rectification and reinforcement of building field of foundation settlement, and in particular to
A kind of screw rod jacking rectification and reinforcement of building method for anchor slab basis.
Background technique
Rectification and reinforcement of building is suitable for the integral inclined value of existing buildings or structures foundation or adjacent pillars foundation settlement difference is more than
Permissible value as defined in existing national standards " Code for design of building " GB50007, and influence normal use or safety
Existing buildings or structures rectification.And lifting inclination-correcting is then one such rectification and reinforcement of building method, suitable for the whole of buildings or structures
Body sedimentation or differential settlement are larger, and the not applicable buildings or structures rectification using forced-landing tilt correcting.Existing lifting inclination-correcting
It is the structure underpinning technology by armored concrete or masonry, by the basis of buildings or structures and superstructure along a certain spy
Positioning, which is set, to be separated, and is reinforced using armored concrete, is segmented jacking transform beams (column) system for underpining, being formed, then set
Several supporting points that can support entire buildings or structures are set, the Lifting Equipments (generally jack) of these supporting points is passed through
Starting, makes buildings or structures make Plane Rotation along a certain straight line (point), and inclination buildings or structures can be made to be corrected.Wherein close
Key is to establish jacking transform beams (column) system (i.e. foundation beam and transform beams (column) this to upper and lower stress system) and apply to push up
Lift.
In existing tradition lifting inclination-correcting design scheme jacking transform beams (column) system mostly use greatly reinforced concrete structure by
Power beam body system, and apply top lift and use Lifting Equipment (such as jack generally between upper and lower reinforced beam stress system
Deng) apply top lift from bottom to top.Its maximum defect is: due to reinforced concrete structured beam stress system and jack etc.
Lifting Equipment is taken up too much space, therefore when progress lifting inclination-correcting, it builds under (structure) object basis and sufficiently large working space is needed to be arranged
The Lifting Equipments such as upper and lower reinforced beam stress system and placement jack, this makes the lower available spaces in some bases narrow
Inclination buildings or structures can not implement rectification and reinforcement of building processing.
Summary of the invention
Technical problem to be solved by the invention is to provide one kind to be different from the prior art, and substitutes being used for for the prior art
The screw rod on anchor slab basis jacks rectification and reinforcement of building method, it is intended to solve due to reinforced concrete structured beam stress system and jack etc.
Lifting Equipment is taken up too much space, and when causing to carry out lifting inclination-correcting, upper and lower steel can not be arranged in the working space built under (structure) object basis
Available space is narrow under the problem of Lifting Equipments such as Concrete Beam Reinforced stress system and placement jack and some bases inclines
The problem of oblique buildings or structures can not implement rectification and reinforcement of building processing.
In order to solve the above technical problems, the technical solution used in the present invention is: a kind of screw top for anchor slab basis
Rise rectification and reinforcement of building method, characterized by the following steps:
A, the flatness of Fundamentals of Measurement upper steel anchor slab determines steel anchor slab rectification region and pilot tunnel according to production engineering specifications
Position；
B, it in the high-strength grouting bed course between steel anchor slab and basis, is used according to the length of production engineering specifications and diameter
The method of horizontal drilling drills to form horizontal pilot tunnel, and clears up pilot tunnel at the pilot tunnel position that step a is determined, fills in pre-manufactured steel
Beam；
C, the steel anchor slab tapping according to production engineering specifications aperture right above pilot tunnel, forms several tapping holes, then
Screw rod matched with tapping hole is installed and the girder steel in the pilot tunnel of lower part is withstood in nut, screw rod bottom；
D, dial gauge is installed at steel anchor slab top corresponding flatness measuring point position according to production engineering specifications；
E, the dial gauge of moment monitoring step d shows data, and subregion recycles step by step revolves screw rod at a slow speed steadily from top to bottom
Enter, so that the classification of steel anchor slab is gradually raised to the jacking amount of production engineering specifications upwards；
F, after use high-strength cement mortar to block pilot tunnel mouth after the completion of step e, and the height and width of production engineering specifications are pressed
One of fine-stone concrete sealing ring is arranged around steel anchor slab outer rim in degree；
G, after fine-stone concrete sealing ring intensity reaches production engineering specifications, the pore region between anchor slab and basis is carried out
Injecting treatment completes.
A further technical solution lies in the process that step b clears up pilot tunnel is to rinse pilot tunnel to dry up.
A further technical solution lies in the circles of the rigidity that, the prefabricated girder steel is production engineering specifications, length and diameter
Steel, cross section are mostly round；
A further technical solution lies in the tapping centerline hole is overlapped with lower section pilot tunnel middle line.
A further technical solution lies in must be zeroed before the dial gauge installation.
A further technical solution lies in step e carries out subregion to screw rod using hydraulic wrench and recycles application step by step
Torque screws in screw rod at a slow speed steadily from top to bottom.
A further technical solution lies in step g injecting treatment is using high-strength cement mortar as injecting paste material, first in rectification
The hole in region carries out slip casting, to the slip casting of rectification region after, then injecting treatment is carried out to other regions.
Further technical solution also resides in, and the high-strength cement mortar is mixed with early strength agent.
The beneficial effects of adopting the technical scheme are that the present invention makes original basis upper steel anchor slab and processing
The girder steel of work passes through active force and reaction between high-strength bolt, steel anchor slab and girder steel three as upper and lower stress system is jacked
Power cleverly applies top lift to steel anchor slab, and it is occupied in the case where building (structure) object basis to greatly reduce entire lifting inclination-correcting system
Space, solve using conventional method, can not to ground beneath narrow space building (structure) object carry out lifting inclination-correcting reinforcing at
The problem of reason；The method reduce ground beneath excavated volumes, save a large amount of Reinforced Concrete Materials, and speed of application is fast, can grasp
The property made and controllability are preferable, and the influence to superstructure is small, and securely and reliably, consolidation effect is preferable；High-strength bolt is except tool jacking function
Can be outer, also serve as permanent stress supporting arrangement, substantially without resilience after processing.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is high-strength bolt lifting inclination-correcting device profile of the present invention；
Fig. 2 is high-strength bolt lifting inclination-correcting setting plane of the present invention；
Fig. 3 is the prefabricated girder steel cross-sectional view of the present invention；
Fig. 4 is pre-manufactured steel beam plan view of the present invention；
Wherein: 1, screw rod and nut；2, prefabricated girder steel；3, pilot tunnel；4, steel anchor slab；5, high-strength grouting bed course；6, hole fills
Starch region；7, fine-stone concrete sealing ring；8, datum line beam；9, dial gauge；10, basic；11, tapping hole.
Specific embodiment
With reference to the attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, but the present invention can be with
Implemented using other than the one described here other way, those skilled in the art can be without prejudice to intension of the present invention
In the case of do similar popularization, therefore the present invention is not limited by the specific embodiments disclosed below.
As shown, specific implementation step of the present invention are as follows:
A, 10 upper steel anchor slab of Fundamentals of Measurement, 4 flatness understands fully the plane configuration feature of 4 differential settlement of steel anchor slab, from
And determine 4 rectification region of steel anchor slab and 3 position of pilot tunnel；
B, it in the high-strength grouting bed course 5 between steel anchor slab 4 and basis 10, using the method for horizontal drilling, is wanted by design
The length and diameter asked form horizontal pilot tunnel 3, and rinse drying cleaning pilot tunnel 3, fill in prefabricated girder steel 2.Wherein, prefabricated girder steel 2
Using the round steel by the rigidity of design requirement, length and diameter, a part is pruned at the top of it to form circle flat-top shape mostly
Girder steel, i.e. its cross section are mostly round；
C, 4 tapping of steel anchor slab right above pilot tunnel 3, and guarantee that 11 center line of tapping hole is overlapped with 3 middle line of lower section pilot tunnel.
Several tapping holes 11 are formed by design aperture requirement, then matched high-strength bolt and nut 1 are installed, screw rod bottom is withstood down
Prefabricated girder steel 2 in portion's pilot tunnel 3；
D, according to design requirement, the dial gauge 9 for requiring range is installed and designed at the corresponding measuring point position in 4 top of steel anchor slab,
It must be zeroed before installation, and guarantee that dial gauge 9 is firm, does not shake；
E, subregion is carried out to high-strength bolt using hydraulic wrench and recycles application torque step by step, keep screw rod steady from top to bottom
Step screw at a slow speed, since prefabricated girder steel 2 is withstood in screw rod bottom, so that with the screw-in of screw rod, prefabricated girder steel 2 will make screw rod generate to
On counter-force, which passes through screw thread bite force between screw rod and steel anchor slab 4, forms upward top lift to steel anchor slab 4 so that
Steel anchor slab 4 is classified the jacking amount for being gradually raised to design requirement upwards, its deformation is allowed slowly to restore.During jacking, Ying Yan
Lattice control jacking rate, moment monitor the jacking amount and superstructure deformation at each measuring point position, guarantee the safety of superstructure；
F, the deformation of steel anchor slab 4 to all rectification regions is able to after being restored to design requirement, using high-strength cement mortar
(mixing early strength agent) blocks each 3 mouthfuls of pilot tunnel, and presses the height and width of design requirement, thin together around the setting of 4 outer rim of steel anchor slab
Stone concrete sealing ring 7；
G, after above-mentioned 7 intensity of fine-stone concrete sealing ring reaches design requirement, the hole between steel anchor slab 4 and basis 10 is filled
It starches region 6 and carries out injecting treatment.It constructs in strict accordance with injecting paste material selected by grouting design and equipment, such as injecting paste material
For cement mortar (mixing early strength agent), grouting equipment is checked and debugged, slip casting nozzle is installed in 4 injected hole of steel anchor slab, first in rectification
The hole in region carries out slip casting, to the slip casting of rectification region after, then injecting treatment is carried out to other regions.
The present invention passes through height using the girder steel of original basis upper steel anchor slab and processing and fabricating as upper and lower stress system is jacked
Active force and reaction force between strong screw rod, steel anchor slab and girder steel three, cleverly apply top lift to steel anchor slab, greatly reduce
Entire lifting inclination-correcting system occupied space in the case where building (structure) object basis, solves using conventional method, can not be to basis
Lower space it is narrow build (structure) object carry out lifting inclination-correcting consolidation process the problem of；The method reduce ground beneath excavated volume,
A large amount of Reinforced Concrete Materials is saved, speed of application is fast, and operability and controllability are preferable, and the influence to superstructure is small,
Securely and reliably, consolidation effect is preferable；High-strength bolt is in addition to tool jacks function, and also serve as permanent stress supporting arrangement, processing
Afterwards substantially without resilience.
Claims (7)
1. a kind of screw rod for anchor slab basis jacks rectification and reinforcement of building method, characterized by the following steps:
A, the flatness of Fundamentals of Measurement upper steel anchor slab determines steel anchor slab rectification region and pilot tunnel position according to production engineering specifications
It sets；
B, in the high-strength grouting bed course between steel anchor slab and basis, according to the length of production engineering specifications and diameter using horizontal
The method of drilling drills to form horizontal pilot tunnel, and clears up pilot tunnel at the pilot tunnel position that step a is determined, fills in prefabricated girder steel；
C, according to the tapping hole aperture of production engineering specifications, tapping on the steel anchor slab right above pilot tunnel forms several tapping
Then hole installs screw rod matched with tapping hole and the girder steel in the pilot tunnel of lower part is withstood in nut, screw rod bottom；
D, dial gauge is installed at steel anchor slab top corresponding flatness measuring point position according to production engineering specifications；
E, the dial gauge of moment monitoring step d shows data, and subregion recycles step by step screws in screw rod at a slow speed steadily from top to bottom, makes
Obtain the jacking amount that the classification of steel anchor slab is gradually raised to production engineering specifications upwards；
F, after use high-strength cement mortar to block pilot tunnel mouth after the completion of step e, and the height and width of production engineering specifications are pressed, enclosed
Around steel anchor slab outer rim, one of fine-stone concrete sealing ring is set；
G, after fine-stone concrete sealing ring intensity reaches production engineering specifications, the pore grout region between anchor slab and basis is carried out
Injecting treatment completes.
2. the screw rod according to claim 1 for anchor slab basis jacks rectification and reinforcement of building method, it is characterised in that: step b
The process for clearing up pilot tunnel is to rinse pilot tunnel to dry up.
3. the screw rod according to claim 1 for anchor slab basis jacks rectification and reinforcement of building method, it is characterised in that: described to attack
Wire hole center line is overlapped with lower section pilot tunnel middle line.
4. the screw rod according to claim 1 for anchor slab basis jacks rectification and reinforcement of building method, it is characterised in that: described hundred
It must be zeroed before dividing table installation.
5. the screw rod according to claim 1 for anchor slab basis jacks rectification and reinforcement of building method, it is characterised in that: step e
Subregion is carried out to screw rod using hydraulic wrench and recycles application torque step by step, screws in screw rod at a slow speed steadily from top to bottom.
6. the screw rod according to claim 1 for anchor slab basis jacks rectification and reinforcement of building method, it is characterised in that: step g
Injecting treatment is using high-strength cement mortar as injecting paste material, and first the hole in rectification region carries out slip casting, to the slip casting of rectification region
After, then injecting treatment is carried out to other regions.
7. the screw rod for anchor slab basis according to claim 1 or 6 jacks rectification and reinforcement of building method, it is characterised in that: institute
High-strength cement mortar is stated mixed with early strength agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510929799.7A CN106869196B (en) | 2015-12-14 | 2015-12-14 | Screw rod for anchor slab basis jacks rectification and reinforcement of building method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510929799.7A CN106869196B (en) | 2015-12-14 | 2015-12-14 | Screw rod for anchor slab basis jacks rectification and reinforcement of building method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106869196A CN106869196A (en) | 2017-06-20 |
| CN106869196B true CN106869196B (en) | 2019-04-23 |
Family
ID=59239587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510929799.7A Active CN106869196B (en) | 2015-12-14 | 2015-12-14 | Screw rod for anchor slab basis jacks rectification and reinforcement of building method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106869196B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1807827B (en) * | 2006-02-09 | 2012-05-23 | 北京发研工程技术有限公司 | Method and apparatus for high precision horizontal drilling on reinforced concrete |
| JP5000734B2 (en) * | 2010-02-15 | 2012-08-15 | 有限会社坂井家起こし | Press-in method of reinforcing pile |
| CN103292116A (en) * | 2012-02-27 | 2013-09-11 | 扬州诚德钢管有限公司 | Anchor bolt with T-type head |
| CN102864795B (en) * | 2012-10-19 | 2014-11-26 | 重庆大学 | Light steel factory post foundation suitable for sedimentation of filled-in ground and construction method |
| CN203870838U (en) * | 2014-06-12 | 2014-10-08 | 北京汽车股份有限公司北京分公司 | Self-tapping buckle replaceable apparatus and workbench |
| CN203960895U (en) * | 2014-07-16 | 2014-11-26 | 新疆金风科技股份有限公司 | Anchor slab bolt assembly and tower foundation assembly |
-
2015
- 2015-12-14 CN CN201510929799.7A patent/CN106869196B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106869196A (en) | 2017-06-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206205908U (en) | A kind of channel-section steel bow member joist for preventing tunnel subsidence to deform | |
| CN107143358B (en) | Opposite-pulling anchor cable structure for controlling tunnel bias deformation and construction method thereof | |
| CN106320737B (en) | A kind of integral jacking method of heritage buildings | |
| CN102042019A (en) | Two-stair five-step excavation construction method for shallow-buried large-span soft plastic clay tunnel | |
| CN102747735A (en) | Treatment method for abnormal deformation of deep foundation pit concrete support piling | |
| CN111779510B (en) | Primary support invasion limit arch changing method for high liquid limit red clay surrounding rock tunnel | |
| CN109138011B (en) | Foundation reinforcing and deviation rectifying method for existing building | |
| CN109610881A (en) | Prestressed girder underpins disconnected column construction method in a kind of existing tier building transformation | |
| CN105714683A (en) | Installation and dismantling method of high bent cast-in-situ aqueduct suspension type bailey frames | |
| CN107044142B (en) | Adjustable reinforcement deviation correcting method and structure for reducing uneven settlement of house | |
| CN107435335A (en) | Brick retaining wall steel bar girder hardened system and method on foundation pit enclosure top beam | |
| CN114215042A (en) | Miniature steel pipe pile for reinforcing foundation and construction method thereof | |
| CN112411610A (en) | Pile foundation underpinning construction method | |
| CN103790176B (en) | A kind of construction method of pre-buried manomelia rod structure | |
| CN109680737A (en) | A kind of foundation of wind-driven generator unit drift correction construction method | |
| RU2436899C1 (en) | Correction method of inclination and non-uniform settlement of large high-rise structure and its foundation | |
| CN104452775B (en) | Pre-loaded support struts and construction method for foundation ditch | |
| KR101387954B1 (en) | Mehod for constructing underground wall in extension of undergound parking lot | |
| CN106869196B (en) | Screw rod for anchor slab basis jacks rectification and reinforcement of building method | |
| CN110318559B (en) | Rescue reinforcement device and method for cultural relics and buildings | |
| JPH0464620A (en) | Construction method for open caisson and its device | |
| CN104711981A (en) | Foundation pit soil nail retaining and protecting structure and method | |
| CN108951684B (en) | Construction method of turnover type steel reinforced concrete construction elevator foundation | |
| CN204626398U (en) | A kind of foundation pit soil nailing structure | |
| CN210622366U (en) | Underpinning processing device for damaged reinforced concrete column |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |