CN110512665A - The synchronous lifting of existing sinking old building and error-correction structure and its construction method - Google Patents
The synchronous lifting of existing sinking old building and error-correction structure and its construction method Download PDFInfo
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- CN110512665A CN110512665A CN201910648839.9A CN201910648839A CN110512665A CN 110512665 A CN110512665 A CN 110512665A CN 201910648839 A CN201910648839 A CN 201910648839A CN 110512665 A CN110512665 A CN 110512665A
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- 238000012937 correction Methods 0.000 title claims abstract description 27
- 238000010276 construction Methods 0.000 title claims abstract description 25
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 18
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 29
- 239000002689 soil Substances 0.000 claims abstract description 19
- 238000005266 casting Methods 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 84
- 239000010959 steel Substances 0.000 claims description 84
- 238000012423 maintenance Methods 0.000 claims description 9
- 239000004567 concrete Substances 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 230000003068 static effect Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000009466 transformation Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000009424 underpinning Methods 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
-
- 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
- E02D35/005—Lowering or lifting of foundation structures
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- General Life Sciences & Earth Sciences (AREA)
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- General Engineering & Computer Science (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The present invention provides a kind of synchronous lifting of existing sinking old building and error-correction structure and its construction method, the present invention includes: to be set to the intracorporal pile foundation of soil of the two sides of the bottom surface of lower part strip footing；The top surface of lower part strip footing and the cushion cap of side are coated, is linked into an integrated entity at the top of the bottom of cushion cap and the pile foundation；It is set to the sandwich wall Liang Dun of the two sidewalls of joist and the lower part two sidewalls of upper wall body structure, the top surface of each jack is contacted with the bottom surface of sandwich wall Liang Dun, and the bottom surface of each jack is contacted with the top surface of the cushion cap；Pour the reinforced concrete floor in the second space for casting from and vacating between pop-up beam and lower joist.The invention proposes the reconstruction of existing building structures under conditions of original structure differential settlement, integrating strengthening of foundation, integral jacking and correction, solve the technical problem of control large area existing building integral jacking synchronism, have advanced and economy.
Description
Technical field
The present invention relates to a kind of synchronous lifting of existing sinking old building and error-correction structure and its construction methods.
Background technique
The passage of time at any time, old building reach its design life mostly, and the transformation demand of existing structure gradually increases
Mostly and become normality.Existing old building is usually present the realistic problems such as sinking, differential settlement, carries out reasonable synchronization to original structure
Lifting is the required content of structural repair transformation.
In existing structure jack-up construction, directly jack using jack mainly on underpinning structure and utilize top
Raising of indices ruler controls jacking amount, completes to jack and pours connection.There are various problems for current jack-up construction: observation investigation is not deep enough
Enter, jacking value determines inaccurate；Jack jacking control is inaccurate, and jacking backhaul is complex；Pass through jacking scale control top
Rising amount, jacking precision is insufficient；It jacks preceding indefinite with stress check calculation after jacking, stress system complexity, redundancy and risk and deposits；Top
Retaining for a long time after being raised to position to equipment during new pouring structure, structural body comes to nothing.Problem above causes to jack quality
It is poor, it is remaining that stress formed to structure, structure is influenced and brings into normal play function.
Summary of the invention
The purpose of the present invention is to provide a kind of existing sinking old buildings to synchronize lifting and error-correction structure and its construction method,
It is second-rate to be able to solve existing building jacking, it is remaining to form stress to structure, influence structure bring into normal play function the problem of.
To solve the above problems, the present invention provides a kind of synchronous lifting of existing sinking old building and error-correction structure, comprising:
The upper wall body structure and lower part strip footing of existing sinking old building, wherein the upper wall body structure is under
Portion's strip footing is after cutting separation, and the upper wall body structure and lower part strip footing are there are the first spaces in-between；
It is set to the intracorporal pile foundation of soil of the two sides of the bottom surface of the lower part strip footing；
Coat the top surface of the lower part strip footing and the cushion cap of side, the top of the bottom of the cushion cap and the pile foundation
It links into an integrated entity；
Be set to the upper joist of the bottom surface of upper wall body structure, be set to the lower joist of the top surface of the cushion cap, it is described on
Joist and lower joist are set in first space, and the upper joist and lower joist are oppositely arranged up and down, and are separated by the up and down
One pre-determined distance；
It is set to the sandwich wall Liang Dun of the two sidewalls of the upper joist and the lower part two sidewalls of upper wall body structure, the sandwich wall
The bottom surface of Liang Dun is opposite with the top surface of the cushion cap, and is separated by the second pre-determined distance up and down, and second pre-determined distance is greater than institute
State the first pre-determined distance；
The top surface of jack, each jack is contacted with the bottom surface of sandwich wall Liang Dun, and the bottom surface of each jack is held with described
The top surface of platform contacts；
Pour the reinforcing bar in the second space for casting from and vacating between the upper joist and lower joist after the jack jacking
Concrete layer, the top surface of the reinforced concrete floor are connect with the bottom surface of the upper joist, the bottom surface of the reinforced concrete floor
It is connect with the top surface of the lower joist.
Further, in said structure, the bottom surface of the sandwich wall Liang Dun is embedded with the first fixation steel plate, the cushion cap
Top surface is embedded with the second fixation steel plate, and first fixation steel plate and second fixation steel plate are opposite up and down, the jack
Top surface contacted with first fixation steel plate, the bottom surface of the jack is contacted with second fixation steel plate.
Further, in said structure, further includes:
Be set to the second steel structure support of the two sides of the jack, the top of second steel structure support with it is described
First fixation steel plate is connected and fixed, and the bottom of second steel structure support is connected and fixed with second fixation steel plate.
Further, in said structure, the pile foundation is anchor jacked pile.
Another side according to the present invention also provides the construction party of a kind of synchronous lifting of existing sinking old building and error-correction structure
Method, comprising:
The upper wall body structure of existing sinking old building is lifted using static(al) cutting and jack technology, so that upper wall body
Structure and lower part strip footing reinforce upper wall body structure there are the first spaces in-between；
Pile foundation is set in the soil body of the two sides of the bottom surface of the lower part strip footing；
It is arranged and coats the top surface of the lower part strip footing and the cushion cap of side, by the bottom of the cushion cap and the pile foundation
Top link into an integrated entity；
Specification, quantity and the cloth set of jacking jack used are determined according to the stress performance of existing sinking old building
It sets；
Existing sinking old building is divided into several construction sections, according to jump storehouse principle construct in batches each construction section reinforcing bar it is mixed
The upper joist and lower joist of the installation site of solidifying soil layer, wherein upper joist is set on the bottom surface of upper wall body structure, described
Lower joist is arranged in the top surface of cushion cap, and the upper joist and lower joist are set in first space, by the upper joist
It is oppositely arranged up and down with lower joist, and is separated by the first pre-determined distance up and down；
Sandwich wall Liang Dun is set in the two sidewalls of the upper joist and the lower part two sidewalls of upper wall body structure, wherein by institute
The bottom surface for stating sandwich wall Liang Dun is opposite with the top surface of the cushion cap, and is separated by the second pre-determined distance up and down, second pre-determined distance
Greater than first pre-determined distance；
The first steel structure support is set in the two sides to position of the jack, wherein by the first steel knot
The top of structure support is connect with the sandwich wall Liang Dun, and the bottom of first steel structure support is connect with the cushion cap；
The jack is installed in the position, wherein by the bottom surface of the top surface of each jack and sandwich wall Liang Dun
Contact, the bottom surface of each jack are contacted with the top surface of the cushion cap, and each jack is synchronized pre- jacking to guarantee top wall
Body structure uniform stressed；
First steel structure support is gradually removed and the stability of the oil cylinder of observing each jack using storehouse principle is jumped；
Upper wall body structure is jacked to predetermined absolute altitude by each jack；
It casts in the second space vacated between the upper joist and lower joist after upper wall body structure jacking
Reinforced concrete floor, wherein the top surface of the reinforced concrete floor is connect with the bottom surface of the upper joist, the reinforcing bar is mixed
The bottom surface of solidifying soil layer is connect with the top surface of the lower joist；
After the completion of reinforced concrete floor maintenance, jack and sandwich wall Liang Dun are successively removed.
Further, in the above-mentioned methods, in the two sidewalls of the upper joist and the lower part two sidewalls of upper wall body structure
It is arranged in sandwich wall beam pier,
In pre-buried first fixation steel plate in the bottom surface of the sandwich wall Liang Dun, in the fixed steel in the top surface of the cushion cap pre-buried second
Plate, wherein first fixation steel plate and second fixation steel plate is opposite up and down；
It is arranged in the first steel structure support in the two sides to position of the jack,
The top of first steel structure support and first fixation steel plate are connected and fixed, by first steel construction
The bottom of support is connected and fixed with second fixation steel plate；
It is installed in the jack in the position,
The top surface of the jack is contacted with first fixation steel plate, by the bottom surface of the jack and described second
Fixation steel plate contact.
Further, in the above-mentioned methods, the upper wall body structure jacking after the upper joist and lower joist it
Between in the second space vacated after casting reinforced concrete floor, further includes:
In the two sides of the jack, the second steel structure support is set；
After the completion of reinforced concrete floor maintenance, jack and sandwich wall Liang Dun are successively removed, comprising:
After the completion of reinforced concrete floor maintenance, jack, the second steel structure support and sandwich wall Liang Dun are successively removed.
Further, in the above-mentioned methods, pile foundation is set in the soil body of the two sides of the bottom surface of the lower part strip footing
In,
Anchor jacked pile is set in the soil body of the two sides of the bottom surface of the lower part strip footing.
Compared with prior art, the present invention includes: the upper wall body structure and lower part strip footing of existing sinking old building,
Wherein, the upper wall body structure and lower part strip footing are after cutting separation, the upper wall body structure and lower part bar shaped base
Plinth is there are the first spaces in-between；It is set to the intracorporal pile foundation of soil of the two sides of the bottom surface of the lower part strip footing；Packet
The top surface of the lower part strip footing and the cushion cap of side are covered, connects into one at the top of the bottom of the cushion cap and the pile foundation
Body；Be set to the upper joist of the bottom surface of upper wall body structure, be set to the lower joist of the top surface of the cushion cap, the upper joist and
Lower joist is set in first space, and the upper joist and lower joist are oppositely arranged up and down, and it is default to be separated by first up and down
Distance；It is set to the sandwich wall Liang Dun of the two sidewalls of the upper joist and the lower part two sidewalls of upper wall body structure, the sandwich wall beam
The bottom surface of pier is opposite with the top surface of the cushion cap, and is separated by the second pre-determined distance up and down, and second pre-determined distance is greater than described
First pre-determined distance；The top surface of jack, each jack is contacted with the bottom surface of sandwich wall Liang Dun, the bottom surface of each jack and institute
State the top surface contact of cushion cap；Pour the second space for casting from and vacating between the upper joist and lower joist after the jack jacking
Interior reinforced concrete floor, the top surface of the reinforced concrete floor are connect with the bottom surface of the upper joist, the armored concrete
The bottom surface of layer is connect with the top surface of the lower joist.The invention proposes under conditions of original structure differential settlement, collection is basic
Reinforcing, integral jacking and correction solve control large area existing building and integrally push up in the reconstruction of existing building structure of one
The technical problem of synchronism is risen, there is advanced and economy.
Detailed description of the invention
Fig. 1 is that storehouse construction schematic diagram is jumped in the masonry wall segmentation cutting of the existing sinking old building of one embodiment of the invention；
Fig. 2 is the existing sinking old building integral jacking front plan views of one embodiment of the invention；
Fig. 3 be one embodiment of the invention existing sinking old building integral jacking before sectional view；
Fig. 4 is the jack arrangement sectional view of one embodiment of the invention；
Fig. 5 be one embodiment of the invention existing sinking old building integral jacking after sectional view；
Fig. 6 be one embodiment of the invention existing sinking old building Overall Reconstruction after add the section of reinforced concrete floor
Figure；
Fig. 7 be one embodiment of the invention existing sinking old building Overall Reconstruction after sectional view.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
As shown in Fig. 1~7, the present invention provides a kind of synchronous lifting of existing sinking old building and error-correction structure, comprising:
The upper wall body structure 1 and lower part strip footing 2 of existing sinking old building, wherein 1 He of upper wall body structure
Lower part strip footing 2 is after cutting separation, and the upper wall body structure 1 and lower part strip footing 2 are there are first in-between
Space 3；
Here, the upper wall body structure of existing sinking old building can be masonry structure, lower wall body basis uses bar shaped
Basis；
It is set to the intracorporal pile foundation 4 of soil of the two sides of the bottom surface of the lower part strip footing 2；
Coat the top surface of the lower part strip footing 2 and the cushion cap 5 of side, the bottom of the cushion cap 5 and the pile foundation 5
Top links into an integrated entity；
Here, the cushion cap 5 links into an integrated entity with the pile foundation 4, to reinforce original lower part strip footing 2；
It is set to the upper joist 6 of the bottom surface of upper wall body structure 1, is set to the lower joist 7 of the top surface of the cushion cap, it is described
Upper joist 6 and lower joist 7 are set in first space 3, and the upper joist 6 and about 7 lower joist are oppositely arranged, and up and down
It is separated by the first pre-determined distance；
It is set to the sandwich wall beam pier 8 of the two sidewalls of the upper joist 6 and the lower part two sidewalls of upper wall body structure 1, it is described
The bottom surface of sandwich wall beam pier 8 is opposite with the top surface of the cushion cap 5, and is separated by the second pre-determined distance up and down, second pre-determined distance
Greater than first pre-determined distance；
The top surface of jack 9, each jack 9 is contacted with the bottom surface of sandwich wall beam pier 8, the bottom surface of each jack 9 and institute
State the top surface contact of cushion cap 5；
Pour the reinforcing bar in the second space for casting from and vacating between the upper joist and lower joist after the jack 9 jacks
Concrete layer 10, the top surface of the reinforced concrete floor 10 are connect with the bottom surface of the upper joist 6, the reinforced concrete floor 10
Bottom surface connect with the top surface of the lower joist 7.
Here, the invention proposes under conditions of original structure differential settlement, collection strengthening of foundation, integral jacking and correction
In the reconstruction of existing building structure of one, solve the technical problem of control large area existing building integral jacking synchronism,
With advanced and economy.
In the synchronous lifting of existing sinking old building of the invention and one embodiment of error-correction structure, the bottom of the sandwich wall beam pier 8
Face is embedded with the first fixation steel plate, and the top surface of the cushion cap 5 is embedded with the second fixation steel plate, first fixation steel plate with it is described
Second fixation steel plate is opposite up and down, and the top surface of the jack 9 is contacted with first fixation steel plate, the bottom of the jack 9
Face is contacted with second fixation steel plate.
In the synchronous lifting of existing sinking old building of the invention and one embodiment of error-correction structure, further includes:
Be set to the second steel structure support 12 of the two sides of the jack 9, the top of second steel structure support 7 with
First fixation steel plate is connected and fixed, and the bottom of second steel structure support 7 is connected and fixed with second fixation steel plate.
In the synchronous lifting of existing sinking old building of the invention and one embodiment of error-correction structure, the pile foundation is anchor rod static pressure
Stake.
As shown in Fig. 1~7, the present invention provides the construction party of a kind of synchronous lifting of existing sinking old building and error-correction structure
Method, comprising:
Step S1 is lifted the upper wall body structure 1 of existing sinking old building using static(al) cutting and jack technology, so that
Upper wall body structure 1 and lower part strip footing 2 add upper wall body structure 1 there are the first spaces 3 in-between
Gu；
Here, the upper wall body structure of existing sinking old building can be masonry structure, lower wall body basis uses bar shaped
Basis；
Pile foundation 4 is arranged in step S2 in the soil body of the two sides of the bottom surface of the lower part strip footing 2；
Step S3, setting coats the top surface of the lower part strip footing 2 and the cushion cap 5 of side, by the bottom of the cushion cap 5
It links into an integrated entity with the top of the pile foundation 4；
Here, the cushion cap links into an integrated entity with the pile foundation, to reinforce original lower part strip footing；
Step S4, according to the stress performance of existing sinking old building determine the specification of jacking jack used, quantity and
Position；
Existing sinking old building is divided into several construction sections by step S5, is constructed in batches each construction section according to storehouse principle is jumped
Reinforced concrete floor 10 installation site upper joist 6 and lower joist 7, wherein be arranged on the bottom surface of upper wall body structure 1
Upper joist 6, the joist 7 under the setting of the top surface of the cushion cap 5, and the upper joist 6 and lower joist 7 are set to first sky
Between in 3, the upper joist 6 and about 7 lower joist are oppositely arranged, and be separated by the first pre-determined distance up and down；
Sandwich wall beam pier 8 is arranged in the two sidewalls of the upper joist 6 and the lower part two sidewalls of upper wall body structure 1 in step S6,
Wherein, the bottom surface of the sandwich wall beam pier 8 is opposite with the top surface of the cushion cap 5, and it is separated by the second pre-determined distance up and down, described
Two pre-determined distances are greater than first pre-determined distance；
Here, the position of jack adds sandwich wall Liang Dun；
The first steel structure support 11 is arranged in the two sides to position of the jack 9, wherein by institute in step S7
The top for stating the first steel structure support 11 is connect with the sandwich wall beam pier 8, and by the bottom of first steel structure support 11 with
The cushion cap 5 connects；
Step S8 installs the jack 9 in the position, wherein by the top surface of each jack 9 and sandwich wall beam
The bottom surface of pier 8 contacts, and the bottom surface of each jack 9 is contacted with the top surface of the cushion cap 5, and each jack 9 is synchronized pre- jacking
To guarantee upper wall body structure uniform stressed；
Step S9 gradually removes first steel structure support 11 using jump storehouse principle and observes the oil of each jack 9
The stability of cylinder；
Step S10 is jacked upper wall body structure 1 to predetermined absolute altitude by each jack 9；
Step S11, second vacated between the upper joist 6 and lower joist 7 after the upper wall body structure 1 jacking
Casting reinforced concrete floor 10 in space, wherein connect the top surface of the reinforced concrete floor 10 and the bottom surface of the upper joist 6
It connects, the bottom surface of the reinforced concrete floor 10 is connect with the top surface of the lower joist 7；
Here, the pouring reinforcement concrete layer between upper and lower joist, guarantees up-down structure globality；
Step S12 successively removes jack 9 and sandwich wall beam pier 8 after the completion of the reinforced concrete floor 10 maintenance.
Here, the invention proposes under conditions of original structure differential settlement, collection strengthening of foundation, integral jacking and correction
In the reconstruction of existing building structure of one, solve the technical problem of control large area existing building integral jacking synchronism,
With advanced and economy.
In one embodiment of construction method of the synchronous lifting of existing sinking old building of the invention and error-correction structure, step S6,
In the two sidewalls of the upper joist 6 and the lower part two sidewalls setting sandwich wall beam pier 8 of upper wall body structure,
In pre-buried first fixation steel plate in bottom surface of the sandwich wall beam pier 8, in the fixed steel in the top surface of the cushion cap 5 pre-buried second
Plate, wherein first fixation steel plate and second fixation steel plate is opposite up and down；
Step S7 is arranged in the first steel structure support 11 in the two sides to position of the jack 9,
The top of first steel structure support 11 and first fixation steel plate are connected and fixed, by the first steel knot
The bottom of structure support 11 is connected and fixed with second fixation steel plate；
Step S8 is installed in the jack 9 in the position,
The top surface of the jack 9 is contacted with first fixation steel plate, by the bottom surface of the jack and described the
The contact of two fixation steel plates.
In one embodiment of construction method of the synchronous lifting of existing sinking old building of the invention and error-correction structure, step S11,
Casting reinforcing bar is mixed in the second space vacated between the upper joist 6 and lower joist 7 after the upper wall body structure 1 jacking
After solidifying soil layer 10, further includes:
In the two sides of the jack 9, the second steel structure support 12 is set；
After the completion of the reinforced concrete floor 10 maintenance, jack 9 and sandwich wall beam pier 8 are successively removed, comprising:
After the completion of the reinforced concrete floor 10 maintenance, jack 9, the second steel structure support 12 and sandwich wall are successively removed
Beam pier 8.
In one embodiment of construction method of the synchronous lifting of existing sinking old building of the invention and error-correction structure, step S2,
It is arranged in pile foundation 4 in the soil body of the two sides of the bottom surface of the lower part strip footing 2,
Anchor jacked pile is set in the soil body of the two sides of the bottom surface of the lower part strip footing 2.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
Obviously, those skilled in the art can carry out various modification and variations without departing from spirit of the invention to invention
And range.If in this way, these modifications and changes of the present invention belong to the claims in the present invention and its equivalent technologies range it
Interior, then the invention is also intended to include including these modification and variations.
Claims (8)
1. a kind of existing sinking old building synchronizes lifting and error-correction structure characterized by comprising
The upper wall body structure and lower part strip footing of existing sinking old building, wherein the upper wall body structure and lower bar
Shape basis is after cutting separation, and the upper wall body structure and lower part strip footing are there are the first spaces in-between；
It is set to the intracorporal pile foundation of soil of the two sides of the bottom surface of the lower part strip footing；
The top surface of the lower part strip footing and the cushion cap of side are coated, the bottom of the cushion cap is connect with the top of the pile foundation
Integrally；
It is set to the upper joist of the bottom surface of upper wall body structure, is set to the lower joist of the top surface of the cushion cap, the upper joist
It is set in first space with lower joist, the upper joist and lower joist are oppositely arranged up and down, and it is pre- to be separated by first up and down
If distance；
It is set to the sandwich wall Liang Dun, the sandwich wall Liang Dun of the two sidewalls of the upper joist and the lower part two sidewalls of upper wall body structure
Bottom surface it is opposite with the top surface of the cushion cap, and be separated by the second pre-determined distance up and down, second pre-determined distance is greater than described the
One pre-determined distance；
The top surface of jack, each jack is contacted with the bottom surface of sandwich wall Liang Dun, the bottom surface of each jack and the cushion cap
Top surface contact；
Pour the reinforced concrete in the second space for casting from and vacating between the upper joist and lower joist after the jack jacking
Soil layer, the top surface of the reinforced concrete floor are connect with the bottom surface of the upper joist, the bottom surface of the reinforced concrete floor and institute
State the top surface connection of lower joist.
2. existing sinking old building as described in claim 1 synchronizes lifting and error-correction structure, which is characterized in that the sandwich wall beam
The bottom surface of pier is embedded with the first fixation steel plate, and the top surface of the cushion cap is embedded with the second fixation steel plate, first fixation steel plate
Opposite up and down with second fixation steel plate, the top surface of the jack is contacted with first fixation steel plate, the jack
Bottom surface contacted with second fixation steel plate.
3. existing sinking old building as described in claim 1 synchronizes lifting and error-correction structure, which is characterized in that further include:
It is set to the second steel structure support of the two sides of the jack, the top of second steel structure support and described first
Fixation steel plate is connected and fixed, and the bottom of second steel structure support is connected and fixed with second fixation steel plate.
4. the synchronous lifting of as described in claim 1 existing sinking old building and error-correction structure, which is characterized in that the pile foundation is
Anchor jacked pile.
5. the construction method that a kind of existing sinking old building synchronizes lifting and error-correction structure characterized by comprising
The upper wall body structure of existing sinking old building is lifted using static(al) cutting and jack technology, so that upper wall body structure
With lower part strip footing there are the first spaces in-between, and upper wall body structure is reinforced；
Pile foundation is set in the soil body of the two sides of the bottom surface of the lower part strip footing；
It is arranged and coats the top surface of the lower part strip footing and the cushion cap of side, by the top of the bottom of the cushion cap and the pile foundation
Portion links into an integrated entity；
Specification, quantity and the position of jacking jack used are determined according to the stress performance of existing sinking old building；
Existing sinking old building is divided into several construction sections, is constructed in batches the armored concrete of each construction section according to storehouse principle is jumped
The upper joist and lower joist of the installation site of layer, wherein upper joist is set on the bottom surface of upper wall body structure, in the cushion cap
Top surface lower joist is set, and the upper joist and lower joist are set in first space, will the upper joist under
Joist is oppositely arranged up and down, and is separated by the first pre-determined distance up and down；
Sandwich wall Liang Dun is set in the two sidewalls of the upper joist and the lower part two sidewalls of upper wall body structure, wherein by the folder
The bottom surface of wall beam pier is opposite with the top surface of the cushion cap, and is separated by the second pre-determined distance up and down, and second pre-determined distance is greater than
First pre-determined distance；
The first steel structure support is set in the two sides to position of the jack, wherein by the first steel construction branch
The top of support is connect with the sandwich wall Liang Dun, and the bottom of first steel structure support is connect with the cushion cap；
The jack is installed in the position, wherein the top surface of each jack is contacted with the bottom surface of sandwich wall Liang Dun,
The bottom surface of each jack is contacted with the top surface of the cushion cap, and each jack is synchronized pre- jacking to guarantee upper wall body structure
Uniform stressed；
First steel structure support is gradually removed and the stability of the oil cylinder of observing each jack using storehouse principle is jumped；
Upper wall body structure is jacked to predetermined absolute altitude by each jack；
It casts in the second space vacated between the upper joist and lower joist after the upper wall body structure jacking reinforcing bar
Concrete layer, wherein connect the top surface of the reinforced concrete floor with the bottom surface of the upper joist, by the armored concrete
The bottom surface of layer is connect with the top surface of the lower joist；
After the completion of reinforced concrete floor maintenance, jack and sandwich wall Liang Dun are successively removed.
6. the construction method that existing sinking old building as claimed in claim 5 synchronizes lifting and error-correction structure, which is characterized in that
In the two sidewalls of the upper joist and the lower part two sidewalls setting sandwich wall beam pier of upper wall body structure,
In pre-buried first fixation steel plate in the bottom surface of the sandwich wall Liang Dun, in pre-buried second fixation steel plate in the top surface of the cushion cap,
In, first fixation steel plate and second fixation steel plate is opposite up and down；
It is arranged in the first steel structure support in the two sides to position of the jack,
The top of first steel structure support and first fixation steel plate are connected and fixed, by first steel structure support
Bottom be connected and fixed with second fixation steel plate；
It is installed in the jack in the position,
The top surface of the jack is contacted with first fixation steel plate, the bottom surface of the jack and described second are fixed
Steel plate contact.
7. the construction method that existing sinking old building as claimed in claim 5 synchronizes lifting and error-correction structure, which is characterized in that
It casts in the second space vacated between the upper joist and lower joist after the upper wall body structure jacking reinforced concrete
After soil layer, further includes:
In the two sides of the jack, the second steel structure support is set；
After the completion of reinforced concrete floor maintenance, jack and sandwich wall Liang Dun are successively removed, comprising:
After the completion of reinforced concrete floor maintenance, jack, the second steel structure support and sandwich wall Liang Dun are successively removed.
8. the construction method that existing sinking old building as claimed in claim 5 synchronizes lifting and error-correction structure, which is characterized in that
It is arranged in pile foundation in the soil body of the two sides of the bottom surface of the lower part strip footing,
Anchor jacked pile is set in the soil body of the two sides of the bottom surface of the lower part strip footing.
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| CN102561721A (en) * | 2012-02-29 | 2012-07-11 | 化学工业岩土工程有限公司 | Building jacking deviation rectifying method |
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