CN106149774B - A kind of rectifying of leaned building reinforcement means based on anchor jacked pile envelope stake technology - Google Patents
A kind of rectifying of leaned building reinforcement means based on anchor jacked pile envelope stake technology Download PDFInfo
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- CN106149774B CN106149774B CN201610567105.4A CN201610567105A CN106149774B CN 106149774 B CN106149774 B CN 106149774B CN 201610567105 A CN201610567105 A CN 201610567105A CN 106149774 B CN106149774 B CN 106149774B
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- 238000005516 engineering process Methods 0.000 title claims abstract description 12
- 230000002787 reinforcement Effects 0.000 title claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 18
- 238000013461 design Methods 0.000 claims abstract description 6
- 238000003491 array Methods 0.000 claims abstract description 4
- 238000007569 slipcasting Methods 0.000 claims abstract description 4
- 230000003068 static effect Effects 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 238000012937 correction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
Classifications
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- 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
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Foundations (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The present invention relates to a kind of rectifying of leaned building reinforcement means based on anchor jacked pile envelope stake technology, belong to construction engineering technical field.A kind of rectifying of leaned building reinforcement means based on anchor jacked pile envelope stake technology, including：Some piling holes arranged in arrays are opened up in existing building differential settlement region；Prestressing force is used to be sealed stake in advance to designed elevation, and to it in anchor jacked pile press-in piling hole；After envelope pile concrete intensity reaches design load, precession threaded rod successively, returns existing building and inclines in batches；After existing building return incline it is in place and relatively stable after, some Grouting Pipes are set in the lifting region of existing building and carry out slip castings.Envelope pilework is combined into one by the present invention with counterforce device, reduces working procedure, and pre-reinforcement can be played a part of by being rectified a deviation again using first envelope stake, is effectively prevented from tilting and is aggravated.
Description
Technical field
The present invention relates to construction engineering technical field, more particularly to a kind of building based on anchor jacked pile envelope stake technology
Correcting and then reinforcing method.
Background technology
The building in weak soil or other unfavorable geologies area is built in due to reconnoitring, designing, constructing or environment etc.
Larger differential settlement easily occurs for reason, thus can cause building inclination, flexure or cracking.In addition, modern age and ancient times
Building can also produce different degrees of inclination because building materials aging or surrounding enviroment change.Then should to tilting excessive building
Satisfactory after correcting is taken, is tilted with eliminating to adverse effect caused by fabric structure or ground, avoids structure or ground from occurring to break
It is bad, reach the purpose for recovering building normal use.
Method for correcting error mainly has two major classes：One kind is forced falling rectifying deviation method, and Main Means are that increase settles the heavy of smaller side
Drop amount, such as subsoil extraction, precipitation method；Another kind of is lifting rectifying method, and Main Means are to reduce the settling amount for settling larger side,
Such as top structural j oist lifting method, anchor jacked pile lifting method.
Wherein anchor jacked pile lifting method is to utilize jack and counterforce device lifting building, reaches the purpose of correction,
This method can meet demand of rectifying a deviation and reinforce simultaneously, and its key implemented is lifting counterforce device reasonable in design, should be ensured
It is reliably connected with original structure, it is easy to operate again, improve correction efficiency and effect.Counterforce device common at present is to utilize anchor pole
Reaction beam is set, the structure is both needed to set jack per pile, and cost is higher, and because the conventional prestressing force of use seals stake method,
Sealing stake must be carried out after the completion of correction by root, and the duration is longer, and loss of prestress easily occurs, caused to return after rectifying a deviation and inclined, do not reach
Effective rectifying effect.
The content of the invention
It is an object of the invention in view of the above-mentioned problems, providing a kind of building based on anchor jacked pile envelope stake technology
Correcting and then reinforcing method, this method seal stake by first carrying out prestressing force to anchor jacked pile, it is also served as correction counterforce device.
The object of the present invention is achieved like this：
A kind of rectifying of leaned building reinforcement means based on anchor jacked pile envelope stake technology, it is characterised in that this method includes：
Some piling holes arranged in arrays are opened up in the differential settlement region of existing building；
Prestressing force is used to be sealed stake in advance to designed elevation, and to it in anchor jacked pile press-in piling hole；The anchor
Rod static pressure pile includes anchor rod static pressure pile body, and rocker bearing, the top of rocker bearing are welded with the top of anchor rod static pressure pile body
Portion is placed with dividing plate and is connected with the threaded rod through dividing plate, is cased with screw thread sleeve pipe outside threaded rod, screw thread sleeve pipe mixes by sealing stake
Solidifying soil pours to be completed to seal stake in advance in piling hole；
After envelope pile concrete intensity reaches design load, precession threaded rod successively, returns existing building and inclines in batches；
After existing building return incline it is in place and relatively stable after, set some Grouting Pipes in the lifting region of existing building
Carry out slip casting.
Wherein, the single precession length of the every threaded rod adjusts in good time according to Monitoring Data, every threaded rod it is total
Precession length is calculated as follows：
Hm-n=H1-1+Ln×(β-4)/1000+Bm×(α-4)/1000
Wherein, H represents the precession length of threaded rod, and m represents north-south m root anchor jacked piles, and n represents East and West direction n-th
Root anchor jacked pile, Ln represent the horizontal range between n-th anchor jacked pile of East and West direction and the 1st anchor jacked pile, Bm tables
Show the vertical range between north-south m roots anchor jacked pile and the 1st anchor jacked pile, α represents existing building along north and south
To initial tilt rate, β represents existing building along transmeridional initial tilt rate；H1-1It can use 0 or according to the anchor jacked pile
Value is carried out with the relative position of existing building angle point.
Wherein, the spacing between some Grouting Pipes determines according to differential settlement.
Beneficial effects of the present invention are：This method is combined into one pilework is sealed with counterforce device, is reduced working procedure, is adopted
Pre-reinforcement can be played a part of by being rectified a deviation again with first envelope stake, effectively prevented from tilting and aggravated.
Brief description of the drawings
Fig. 1 is the floor map of the present invention.
Fig. 2 is Fig. 1 I-I to profile.
Fig. 3 is Fig. 2 partial enlarged drawing.
Embodiment
With reference to specific embodiments and the drawings, the present invention is expanded on further.
As depicted in figs. 1 and 2, a kind of rectifying of leaned building reinforcement means based on anchor jacked pile envelope stake technology, including such as
Lower step：
(1) some piling holes 1 arranged in arrays are opened up in the differential settlement region of existing building 2.
(2) anchor jacked pile 4 is pressed into piling hole 1 uses prestressing force to be sealed stake in advance to designed elevation, and to it.
As shown in figure 3, anchor jacked pile 4 includes anchor rod static pressure pile body 41, welded at the top of anchor rod static pressure pile body 41
Rocker bearing 42 is connected to, the top of rocker bearing 42 is placed with dividing plate 43 and is connected with the threaded rod 44 through dividing plate 43, screw thread
It is cased with screw thread sleeve pipe 45 outside bar 44, screw thread sleeve pipe 45 pours by sealing pile concrete 46 and completes to seal stake in advance in piling hole 1.
It is as follows that the prestressing force of anchor jacked pile 4 seals an implementation process in advance：Threaded rod 44 is passed through into dividing plate 43 and arc first
Shape bearing 42 be connected, dividing plate 43 is then positioned over the top of rocker bearing 42, the rotary sleeve of screw thread sleeve pipe 45 outside threaded rod 44, and
Rocker bearing 42 is welded in the top of anchor rod static pressure pile body 41.Then anchor rod static pressure pile body 41 is pressed into using Pile feeder
Until designed elevation, ensures that dividing plate 43 is located at the bottom of original basis bottom plate 5 in piling hole 1.Then entered using envelope pile concrete 46
Row envelope is built, and screw thread sleeve pipe 45 is poured in piling hole 1.
(3) after the envelope intensity of pile concrete 46 reaches design load, precession threaded rod 44 successively, makes existing building 2 in batches
Return and incline.
Wherein, the single precession length of every threaded rod 44 adjusts in good time according to Monitoring Data, every threaded rod 44 it is total
Precession length is calculated as follows：
Hm-n=H1-1+Ln×(β-4)/1000+Bm×(α-4)/1000
Wherein, H represents the precession length of threaded rod, and m represents north-south m root anchor jacked piles, and n represents East and West direction n-th
Root anchor jacked pile, Ln represent the horizontal range between n-th anchor jacked pile of East and West direction and the 1st anchor jacked pile, Bm tables
Show the vertical range between north-south m roots anchor jacked pile and the 1st anchor jacked pile, α represents existing building along north and south
To initial tilt rate, β represents existing building along transmeridional initial tilt rate；H1-1It can use 0 or according to the anchor jacked pile
Value is carried out with the relative position of existing building angle point.
(4) after existing building 2 return incline it is in place and relatively stable after, set in the lifting region of existing building 2 some
Grouting Pipe 3 carries out slip casting.
Wherein, the spacing between some Grouting Pipes 3 determines with specific reference to differential settlement.
With above-described embodiment, the design to the object of the invention and embodiment elaborate referring to the drawings, but ability
Domain those of ordinary skill will recognize, still can be to this in the case where limiting the precondition of scope without departing from claim
Various modifications and variations are made in invention, such as：Precession order of each threaded rod etc., therefore do not repeat one by one herein.
Claims (3)
1. a kind of rectifying of leaned building reinforcement means based on anchor jacked pile envelope stake technology, it is characterised in that this method includes：
Some piling holes arranged in arrays are opened up in the differential settlement region of existing building；
Prestressing force is used to be sealed stake in advance to designed elevation, and to it in anchor jacked pile press-in piling hole；The anchor pole is quiet
Piling includes anchor rod static pressure pile body, and rocker bearing is welded with the top of anchor rod static pressure pile body, is put at the top of rocker bearing
It is equipped with dividing plate and is connected with the threaded rod through dividing plate, is cased with screw thread sleeve pipe outside threaded rod, screw thread sleeve pipe is by sealing pile concrete
Pour and complete to seal stake in advance in piling hole；
After envelope pile concrete intensity reaches design load, precession threaded rod successively, returns existing building and inclines in batches；
After existing building return incline it is in place and relatively stable after, some Grouting Pipes are set in the lifting region of existing building and are carried out
Slip casting.
2. a kind of rectifying of leaned building reinforcement means based on anchor jacked pile envelope stake technology according to claim 1, it is special
Sign is that the single precession length of the every threaded rod adjusts in good time according to Monitoring Data, total precession length of every threaded rod
Degree is calculated as follows：
Hm-n=H1-1+Ln×(β-4)/1000+Bm×(α-4)/1000
Wherein, H represents the precession length of threaded rod, and m represents north-south m root anchor jacked piles, and n represents n-th anchor of East and West direction
Rod static pressure pile, LnRepresent the horizontal range between n-th anchor jacked pile of East and West direction and the 1st anchor jacked pile, BmRepresent north and south
Vertical range between m roots anchor jacked pile and the 1st anchor jacked pile, α represent existing building along the first of north-south
Beginning slope, β represent existing building along transmeridional initial tilt rate；H1-1Desirable 0 or according to the anchor jacked pile with it is existing
The relative position of building angle point carries out value.
3. a kind of rectifying of leaned building reinforcement means based on anchor jacked pile envelope stake technology according to claim 1, it is special
Sign is that the spacing between some Grouting Pipes determines according to differential settlement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610567105.4A CN106149774B (en) | 2016-07-19 | 2016-07-19 | A kind of rectifying of leaned building reinforcement means based on anchor jacked pile envelope stake technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610567105.4A CN106149774B (en) | 2016-07-19 | 2016-07-19 | A kind of rectifying of leaned building reinforcement means based on anchor jacked pile envelope stake technology |
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| CN106149774A CN106149774A (en) | 2016-11-23 |
| CN106149774B true CN106149774B (en) | 2018-01-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108457312A (en) * | 2018-03-28 | 2018-08-28 | 浙江泛华工程监理有限公司 | A kind of strengthening of foundation method of building |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107130652A (en) * | 2017-05-26 | 2017-09-05 | 上海岩土工程勘察设计研究院有限公司 | The strengthening of foundation method passively rectified a deviation for building |
| CN111519673A (en) * | 2020-05-15 | 2020-08-11 | 南通大学 | Construction method for correcting ultrahigh large floating roof type oil tank |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007031934A (en) * | 2005-07-22 | 2007-02-08 | Sekisui House Ltd | Inclination correcting construction method of house |
| JP2007182741A (en) * | 2006-01-04 | 2007-07-19 | Mitsuru Honda | Differentially settled foundation correcting and reinforcing method by underpinning |
| CN101397796A (en) * | 2008-09-12 | 2009-04-01 | 葛培中 | Construction method of prestressed anchor rod static pressure pile |
| CN102660969B (en) * | 2012-05-27 | 2014-12-03 | 上海岩土工程勘察设计研究院有限公司 | Deviation rectifying method for building |
| CN104652842B (en) * | 2015-02-15 | 2017-03-15 | 上海天演建筑物移位工程股份有限公司 | Building integral error correcting and position, raise method for improving and its equipment |
| CN204590107U (en) * | 2015-04-17 | 2015-08-26 | 上海岩土工程勘察设计研究院有限公司 | Building bidirectional deviation correction ruggedized construction |
| CN204780907U (en) * | 2015-07-06 | 2015-11-18 | 广东省建筑科学研究院集团股份有限公司 | Stake device is sealed in stake of prestressed anchorage pole static pressure among civil engineering |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108457312A (en) * | 2018-03-28 | 2018-08-28 | 浙江泛华工程监理有限公司 | A kind of strengthening of foundation method of building |
| CN108457312B (en) * | 2018-03-28 | 2019-10-18 | 浙江泛华工程咨询有限公司 | A kind of strengthening of foundation method of building |
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Address after: 202150 Xiushan Road 258, Chongming Industrial Park, Chongming County, Shanghai Patentee after: Shanghai Survey, Design and Research Institute (Group) Co.,Ltd. Country or region after: China Address before: 202150 Xiushan Road 258, Chongming Industrial Park, Chongming County, Shanghai Patentee before: SHANGHAI GEOTECHNICAL INVESTIGATIONS & DESIGN INSTITUTE Co.,Ltd. Country or region before: China |
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