CN106869196A - For the screw rod jacking rectification and reinforcement of building method on anchor slab basis - Google Patents
For the screw rod jacking rectification and reinforcement of building method on anchor slab basis Download PDFInfo
- Publication number
- CN106869196A CN106869196A CN201510929799.7A CN201510929799A CN106869196A CN 106869196 A CN106869196 A CN 106869196A CN 201510929799 A CN201510929799 A CN 201510929799A CN 106869196 A CN106869196 A CN 106869196A
- Authority
- CN
- China
- Prior art keywords
- anchor slab
- screw rod
- rectification
- reinforcement
- pilot tunnel
- 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.)
- Granted
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 invention discloses a kind of screw rod jacking rectification and reinforcement of building method for anchor slab basis, and in particular to buildings or structures foundation is integral inclined or 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 is circulated step by step makes screw rod screw at a slow speed steadily from top to bottom so that the classification of steel anchor slab is progressively raised to the jacking amount of production engineering specifications upwards；Using high-strength cement mortar closure pilot tunnel mouthful, one 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 volume, substantial amounts of Reinforced Concrete Materials is saved, speed of application is fast, preferably, the influence to superstructure is small, safe and reliable, and consolidation effect is preferable for operability and controllability；High-strength bolt is in addition to having jacking function, while stress supporting arrangement is also served as, without resilience after treatment.
Description
Technical field
It is integral inclined the present invention relates to buildings or structures foundation or rectification of foundation settlement adds
Gu a kind of field, and in particular to screw rod jacking rectification and reinforcement of building method for anchor slab basis.
Background technology
Rectification and reinforcement of building is applied to the existing integral inclined value of buildings or structures foundation or adjacent pillars
Foundation settlement difference exceedes existing national standards《Code for design of building》GB50007 is advised
Fixed permissible value, and the normal use of influence or the existing buildings or structures rectification of safety.And push up
It is then a kind of rectification and reinforcement of building method therein to rise rectification, it is adaptable to which the entirety of buildings or structures is sunk
Drop or differential settlement are larger, and the inapplicable buildings or structures rectification using forced-landing tilt correcting.
Existing lifting inclination-correcting is the structure underpinning technology by armored concrete or masonry, will be built
(structure) builds the basis of thing and superstructure is separated along a certain ad-hoc location, mixed using reinforcing bar
Solidifying soil is reinforced, is segmented jacking transform beams (post) system for underpining, being formed, then sets energy
Several strong points of whole buildings or structures are supported, by the Lifting Equipment of these strong points
The startup of (generally jack), makes buildings or structures make plane along a certain straight line (point)
Rotate, you can corrected inclination buildings or structures.Wherein key is to set up jacking support
Change beam (post) system (i.e. foundation beam and transform beams (post) this to upper and lower stress system) with
And apply top lift.
Jacking transform beams (post) system uses steel mostly in existing traditional lifting inclination-correcting design
Tendon concrete structure bearing beam system, and it is general in upper and lower reinforced beam to apply top lift
Top lift is applied using Lifting Equipment (such as jack) from bottom to top between stress system.Its
Maximum defect is：Because the jackings such as reinforced concrete structured beam stress system and jack set
It is standby to be taken up too much space, therefore needed under when carrying out lifting inclination-correcting, building (structure) thing basis sufficiently large
Working space upper and lower reinforced beam stress system be set and the jackings such as jack are placed set
Standby, this causes that the narrow and small inclination buildings or structures of free space cannot be implemented to entangle under some bases
Incline consolidation process.
The content of the invention
The technical problems to be solved by the invention are to provide one kind and are different from prior art, and substitute
The screw rod jacking rectification and reinforcement of building method for anchor slab basis of prior art, it is intended to solve due to steel
The Lifting Equipment such as tendon concrete structure beam stress system and jack is taken up too much space, and causes to carry out
Working space during lifting inclination-correcting, built under (structure) thing basis cannot set upper and lower reinforced concrete
The problem of the Lifting Equipment such as native beam stress system and placement jack, and can be used under some bases
The inclination buildings or structures of narrow space cannot implement the problem of rectification and reinforcement of building treatment.
In order to solve the above technical problems, the technical solution used in the present invention is：One kind is used for anchor
The screw rod jacking rectification and reinforcement of building method on plate basis, it is characterised in that：Comprise the following steps：
The flatness of a, Fundamentals of Measurement upper steel anchor slab, steel anchor is determined according to production engineering specifications
Plate rectification region and pilot tunnel position；
In b, the high-strength grouting bed course between steel anchor slab and basis, according to production engineering specifications
Length and diameter using horizontal drilling method, step a determine pilot tunnel position at drill
Horizontal pilot tunnel is formed, and clears up pilot tunnel, fill in prefabricated girder steel；
C, the steel anchor slab tapping according to production engineering specifications aperture directly over pilot tunnel, if being formed
Dry tapping hole, is then installed and tapping hole supporting screw rod and nut, and screw rod bottom is withstood down
Girder steel in portion's pilot tunnel；
D, installed at the corresponding flatness measuring point position in steel anchor slab top according to production engineering specifications
Dial gauge；
The dial gauge display data of e, moment monitoring step d, subregion is circulated step by step makes screw rod certainly
It is above lower to screw at a slow speed steadily so that the classification of steel anchor slab is progressively raised to production engineering specifications upwards
Jacking amount；
F, treat using high-strength cement mortar closure pilot tunnel mouthful after the completion of step e, and set by technique
Desired height and width is counted, one fine-stone concrete sealing ring is set around steel anchor slab outer rim；
G, after fine-stone concrete sealing ring intensity reaches production engineering specifications, to anchor slab and basis
Between pore region carry out injecting treatment, that is, complete.
Further technical scheme is that the process of step b cleaning pilot tunnels is to rinse pilot tunnel to blow
It is dry.
Further technical scheme is, the prefabricated girder steel for production engineering specifications rigidity,
The round steel of length and diameter, its cross section is more semicircle；
Further technical scheme is, the tapping centerline hole and lower section pilot tunnel center line weight
Close.
Further technical scheme is that the dial gauge must be zeroed before installing.
Further technical scheme is that step e is divided screw rod using hydraulic wrench
Applying moment of torsion is circulated in area step by step, screw rod is screwed at a slow speed steadily from top to bottom.
Further technical scheme is that step g injecting treatments are to note with high-strength cement mortar
Pulp material, the first hole in rectification region carries out slip casting, after the slip casting of rectification region is finished, then
Injecting treatment is carried out to other regions.
Further technical scheme is also resided in, and the high-strength cement mortar is mixed with early strength agent.
It is using the beneficial effect produced by above-mentioned technical proposal：The present invention is by original basis top
The girder steel of steel anchor slab and processing and fabricating as the upper and lower stress system of jacking, by high-strength bolt,
Steel anchor slab and the intermolecular forces and reaction force of girder steel three, cleverly apply jacking to steel anchor slab
Power, greatly reduces the whole lifting inclination-correcting system space shared in the case where (structure) thing basis is built,
Solve and use conventional method, it is impossible to which (structure) thing of building to ground beneath narrow space is pushed up
Rise the problem of rectification and reinforcement of building treatment；Ground beneath excavated volume is the method reduce, is saved substantial amounts of
Reinforced Concrete Materials, speed of application is fast, and operability and controllability are preferable, to superstructure
Influence it is small, safe and reliable, consolidation effect is preferable；High-strength bolt except have jacking function in addition to, together
When also serve as permanent stress supporting arrangement, substantially without resilience after treatment.
Brief description of the drawings
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
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 prefabricated girder steel cross-sectional view of the invention；
Fig. 4 is pre-manufactured steel beam plan of the present invention；
Wherein:1st, screw rod and nut；2nd, prefabricated girder steel；3rd, pilot tunnel；4th, steel anchor slab；5、
High-strength grouting bed course；6th, pore grout region；7th, fine-stone concrete sealing ring；8th, datum line beam；9、
Dial gauge；10th, basis；11st, tapping hole.
Specific embodiment
With reference to the accompanying drawing in the embodiment of the present invention, to the technical scheme in the embodiment of the present invention
It is clearly and completely described, it is clear that described embodiment is only one of the invention
Divide embodiment, rather than whole embodiments.Based on the embodiment in the present invention, this area is general
The every other embodiment that logical technical staff is obtained under the premise of creative work is not made,
Belong to the scope of protection of the invention.
Many details are elaborated in the following description in order to fully understand the present invention, but
It is that the present invention can also be different from other manner described here to implement using other, this area
Technical staff can be similar popularization, therefore the present invention in the case of without prejudice to intension of the present invention
Do not limited by following public specific embodiment.
As illustrated, specific implementation step of the present invention is：
A, the flatness of 10 upper steel anchor slab of Fundamentals of Measurement 4, understand fully the differential settlement of steel anchor slab 4
Plane configuration feature, so that it is determined that the rectification region of steel anchor slab 4 and the position of pilot tunnel 3；
In b, the high-strength grouting bed course 5 between steel anchor slab 4 and basis 10, using level
The method of drilling, by the length and diameter of design requirement, forms horizontal pilot tunnel 3, and flushing is blown
Dry cleaning pilot tunnel 3, fills in prefabricated girder steel 2.Wherein, prefabricated girder steel 2 is using by design requirement
Rigidity, length and diameter round steel, pruned at the top of it a part so as to formed many semicircles put down
Dome-shaped girder steel, i.e. its cross section are more semicircle；
C, the tapping of steel anchor slab 4 directly over pilot tunnel 3, and ensure the center line of tapping hole 11 with
The center line of lower section pilot tunnel 3 overlaps.Several tapping holes 11 are formed by design aperture requirement, then
Supporting high-strength bolt and nut 1 is installed, the pre-manufactured steel in bottom pilot tunnel 3 is withstood in screw rod bottom
Beam 2；
D, according to design requirement, on the top of steel anchor slab 4 corresponding measuring point position mounting design will
The dial gauge 9 of range is sought, must be zeroed before installation, and ensured that dial gauge 9 is firm, do not rock；
E, subregion carried out to high-strength bolt using hydraulic wrench circulate applying moment of torsion step by step,
Screw rod is set to screw at a slow speed steadily from top to bottom, because prefabricated girder steel 2 is withstood in screw rod bottom, therefore with
The screw-in of screw rod, prefabricated girder steel 2 will make screw rod produce upward counter-force, the counter-force to pass through spiral shell
Screw thread snap-in force between bar and steel anchor slab 4, upward top lift is formed to steel anchor slab 4 so that
Steel anchor slab 4 is classified the jacking amount for being progressively raised to design requirement upwards, makes its deformation slow extensive
It is multiple.During jacking, jacking speed should be strictly controlled, the moment monitors each measuring point position
Jacking amount and superstructure deform, it is ensured that the safety of superstructure；
F, treat all rectification regions the deformation of steel anchor slab 4 be able to return to design requirement after,
3 mouthfuls of each pilot tunnel is blocked using high-strength cement mortar (mixing early strength agent), and by the height of design requirement
Degree and width, one fine-stone concrete sealing ring 7 is set around the outer rim of steel anchor slab 4；
G, after the above-mentioned intensity of fine-stone concrete sealing ring 7 reaches design requirement, to steel anchor slab 4 with
Pore grout region 6 between basis 10 carries out injecting treatment.In strict accordance with grouting design institute
The injecting paste material and equipment of selection are constructed, and such as injecting paste material is that cement mortar (mixes early strong
Agent), grouting equipment is checked and debugs, slip casting nozzle is installed in the injected hole of steel anchor slab 4, first exist
The hole in rectification region carries out slip casting, after the slip casting of rectification region is finished, then other regions is entered
Row injecting treatment.
The present invention receives the girder steel of original basis upper steel anchor slab and processing and fabricating as jacking is upper and lower
Power system, by the intermolecular forces and reaction force of high-strength bolt, steel anchor slab and girder steel three,
Top lift cleverly is applied to steel anchor slab, whole lifting inclination-correcting system is greatly reduced and is being built (structure)
The lower shared space in thing basis, solves and uses conventional method, it is impossible to ground beneath space
Narrow and small (structure) thing of building carries out the problem of lifting inclination-correcting consolidation process；The method reduce basis
Lower section excavated volume, saves substantial amounts of Reinforced Concrete Materials, and speed of application is fast, operability and
Preferably, the influence to superstructure is small, safe and reliable, and consolidation effect is preferable for controllability；It is high-strength
Screw rod in addition to having jacking function, while also serve as permanent stress supporting arrangement, after treatment substantially without
Resilience.
Claims (8)
1. it is a kind of for anchor slab basis screw rod jacking rectification and reinforcement of building method, it is characterised in that：Comprise the following steps：
The flatness of a, Fundamentals of Measurement upper steel anchor slab, steel anchor slab rectification region and pilot tunnel position are determined according to production engineering specifications；
In b, the high-strength grouting bed course between steel anchor slab and basis, length and diameter according to production engineering specifications drill to form horizontal pilot tunnel using the method for horizontal drilling at the pilot tunnel position that step a determines, and clear up pilot tunnel, fill in prefabricated girder steel；
C, the steel anchor slab tapping according to production engineering specifications aperture directly over pilot tunnel, form several tapping holes, then install and tapping hole supporting screw rod and nut, and the girder steel in the pilot tunnel of bottom is withstood in screw rod bottom；
D, dial gauge is installed at the corresponding flatness measuring point position in steel anchor slab top according to production engineering specifications；
The dial gauge display data of e, moment monitoring step d, subregion is circulated step by step makes screw rod screw at a slow speed steadily from top to bottom so that the classification of steel anchor slab is progressively raised to the jacking amount of production engineering specifications upwards；
F, treat using high-strength cement mortar closure pilot tunnel mouthful after the completion of step e, and by the height and width of production engineering specifications, one fine-stone concrete sealing ring is set around steel anchor slab outer rim；
G, after fine-stone concrete sealing ring intensity reaches production engineering specifications, injecting treatment is carried out to the pore grout region between anchor slab and basis, that is, complete.
2. it is according to claim 1 for anchor slab basis screw rod jacking rectification and reinforcement of building method, it is characterised in that：The process of step b cleaning pilot tunnels is to rinse pilot tunnel to dry up.
3. it is according to claim 1 for anchor slab basis screw rod jacking rectification and reinforcement of building method, it is characterised in that：The prefabricated girder steel is the round steel of the rigidity, length and diameter of production engineering specifications, and its cross section is more semicircle.
4. it is according to claim 1 for anchor slab basis screw rod jacking rectification and reinforcement of building method, it is characterised in that：The tapping centerline hole overlaps with lower section pilot tunnel center line.
5. it is according to claim 1 for anchor slab basis screw rod jacking rectification and reinforcement of building method, it is characterised in that：The dial gauge must be zeroed before installing.
6. it is according to claim 1 for anchor slab basis screw rod jacking rectification and reinforcement of building method, it is characterised in that：Step e carries out subregion and circulates applying moment of torsion step by step using hydraulic wrench to screw rod, screw rod is screwed at a slow speed steadily from top to bottom.
7. it is according to claim 1 for anchor slab basis screw rod jacking rectification and reinforcement of building method, it is characterised in that：Step g injecting treatments are that, with high-strength cement mortar as injecting paste material, first the hole in rectification region carries out slip casting, after the slip casting of rectification region is finished, then carries out injecting treatment to other regions.
8. according to claim 1 or 7 for anchor slab basis screw rod jacking rectification and reinforcement of building method, it is characterised in that：The high-strength cement mortar is 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 true CN106869196A (en) | 2017-06-20 |
| CN106869196B 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) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1807827A (en) * | 2006-02-09 | 2006-07-26 | 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 |
| CN102864795A (en) * | 2012-10-19 | 2013-01-09 | 重庆大学 | Light steel factory post foundation suitable for sedimentation of filled-in ground and construction method |
| CN103292116A (en) * | 2012-02-27 | 2013-09-11 | 扬州诚德钢管有限公司 | Anchor bolt with T-type head |
| 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
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1807827A (en) * | 2006-02-09 | 2006-07-26 | 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 |
| CN102864795A (en) * | 2012-10-19 | 2013-01-09 | 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106869196B (en) | 2019-04-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103321421B (en) | The one-time formed construction method of a kind of concrete water pool wall | |
| CN108343260B (en) | Inclined building deviation rectifying and reinforcing structure and construction method thereof | |
| CN108842798B (en) | Static pressure sinking construction method of prefabricated pouring type open caisson | |
| CN107044142B (en) | Adjustable reinforcement deviation correcting method and structure for reducing uneven settlement of house | |
| CN103590408A (en) | Novel double-row pile beam vertical anchor supporting system and construction method thereof | |
| CN107435335A (en) | Brick retaining wall steel bar girder hardened system and method on foundation pit enclosure top beam | |
| CN105715068A (en) | Underpinning and reinforcing structure for seismic isolation bearing of existing brick-concrete structure and construction method for underpinning and reinforcing structure | |
| CN106013171A (en) | Semi-rigid and semi-flexible support structure and method for deep foundation pit side wall | |
| CN103485351A (en) | Inclined pile vertical anchor rod supporting structure for foundation pit supporting and construction method thereof | |
| CN103469803A (en) | Pile beam vertical anchor support system used for supporting foundation pit and construction method of pile beam vertical anchor support system | |
| CN205557537U (en) | Supporting structure of foundation pit | |
| CN112411610A (en) | Pile foundation underpinning construction method | |
| CN204590048U (en) | A kind of high slope rockmass structure | |
| CN104790423B (en) | A kind of large-scale transmission tower is combined and expands top bored concrete pile foundation | |
| CN205954638U (en) | Half semi -rigid flexible supporting construction of deep basal pit lateral wall | |
| CN107476316B (en) | Building foundation pit internal and external support structure and construction method | |
| CN108412223B (en) | Deviation correcting structure and deviation correcting method for horizontal locking broken column | |
| CN104295112A (en) | Reinforced concrete column upper-connected concrete filled steel tube column connecting structure and construction method thereof | |
| CN104452775B (en) | Pre-loaded support struts and construction method for foundation ditch | |
| CN110318559B (en) | Rescue reinforcement device and method for cultural relics and buildings | |
| CN203498841U (en) | Inclined pile vertical anchor rod supporting structure used for foundation pit supporting | |
| CN106894437A (en) | Limited prestressing precast concrete foundation, communication tower building and construction method | |
| CN103711123B (en) | The construction method of bamboo joint type mortar pile | |
| CN204174955U (en) | Reinforced concrete post connects steel core concrete column syndeton | |
| CN207244633U (en) | Brick retaining wall steel bar girder hardened system on foundation pit enclosure top beam |
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 |