CN108396770B - Multi-panel encloses the protective device and construction method of existing shallow foundation building under the conditions of digging - Google Patents
Multi-panel encloses the protective device and construction method of existing shallow foundation building under the conditions of digging Download PDFInfo
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- CN108396770B CN108396770B CN201810078756.6A CN201810078756A CN108396770B CN 108396770 B CN108396770 B CN 108396770B CN 201810078756 A CN201810078756 A CN 201810078756A CN 108396770 B CN108396770 B CN 108396770B
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- steel pipe
- outer arcuate
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/48—Foundations inserted underneath existing buildings or constructions
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D37/00—Repair of damaged foundations or foundation structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0046—Production methods using prestressing techniques
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0026—Metals
- E02D2300/0029—Steel; Iron
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- Life Sciences & Earth Sciences (AREA)
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- General Engineering & Computer Science (AREA)
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Abstract
The present invention relates to protective devices and construction method that a kind of multi-panel encloses existing shallow foundation building under the conditions of digging, belong to existing building protection technique field.The protective device includes horizontal, longitudinal phase mutually overlapped arc force transferring structure and the connector for horizontal, vertical overlapped arc force transferring structure；Arc force transferring structure includes outer arcuate steel pipe, internal prestress wire and end anchorage structure.Internal prestress wire is arranged in outer arcuate steel pipe, and the shape of outer arcuate steel pipe is adjusted by the stress value of internal prestress wire；Outer arcuate steel pipe passes through building enclosure, is fixedly connected at its both ends with foundation pit enclosure structure by end fixing bolt.The protective device, by the load transfer of existing building to the biggish building enclosure of surrounding rigidity, protects existing building using foundation pit enclosure structure using curved steel tube；Simultaneously using the adjustment prestressed method of steel pipe, targetedly fining dynamic is carried out to the sedimentation of building according to monitoring data and is controlled.
Description
Technical field
The present invention relates to protective devices and its construction method that a kind of multi-panel encloses existing shallow foundation building under the conditions of digging, fit
The building protection enclosed under the conditions of digging for multi-panel belongs to underground engineering and applies especially for the protection of shallow foundation heritage buildings
Existing building protection technique field in work.
Background technique
The case where base pit engineering encloses digging to existing protection building formation multi-panel is commonplace, in this case, building
On " isolated island ", there is Unloading Effect caused by excavation of foundation pit in multiple directions, soil displacement field changing rule is complicated,
Deformation control is difficult；Particularly, for shallow foundation ancient building, due to base form weakness, superstructure aging is serious, from
Body bearing capacity and the ability of resistance to deformation are lower, very sensitive to the reaction of stratum displacement field when enclosing digging condition in multi-panel, slightly
The risks such as have accidentally it is possible that building settlement, deformation, crack transfinite, or even occur collapsing, causes serious society not
Good influence.Therefore, using effective means to multi-panel enclose digging under the conditions of existing building protect it is particularly significant.
Mainly there is basis to widen technology, pier formula underpinning technique, pile underpinning currently, existing existing building reinforces means
Technology, foundation consolidating technology and integrated strengthening technique.It is using concrete jacket or reinforced concrete soil suite or to adopt that technology is widened on basis
Foundation's bottom area is increased with lift beam method, diagonal brace method etc., protects building；Pier formula underpinning technique is for soft foundation, especially
The processing of expansive soil foundation is more effectively that expense is lower, easy for construction, but the duration is longer.Pile underpinning technology is main
Including anchor jacked pile technology, Root Pile Underpinning Technique, pit static pile underpinning technology, wherein anchor pile underpinning technology is
A kind of technique that two technologies of anchor pole and static press piling combine；Tree root method is needed using mud jacking pile；Pit static pressed pile be
It underpins in hole under the basis excavated, is self-possessed using building superstructure as reaction of bearing, it will be prefabricated with jack
The support and change method being pressed into paragraph by paragraph after steel-pipe pile or armored concrete pile cutoff spreading in soil.Grouting strengthening method includes pressure grouting
And jet grouting.
The basic thought of the reinforcement protection technology on existing existing building basis is by means such as slip casting, piling to original
There is ground to be handled, improves its bearing capacity and resistance capacity to deformation.But in the building enclosed under digging state,
The displacement of foundation soil itself and Deformation control are extremely difficult, it is simple by means such as grouting and reinforcing, static pressure pile foundations only to ground
Soil is handled, and the deformation of building can not be effectively controlled.
Summary of the invention
Present invention aims at the deficiencies in the prior art are made up, discloses a kind of multi-panel and enclose existing shallow foundation building under the conditions of digging
The protective device and application method of object, directly do not handle ground, but pass through the drawbacks of overcoming traditional reinforcement means
Prestressed steel structure is set up, building load is transferred to the building enclosure (construction period) for enclosing digging foundation pit and newly-built structure (to be made
With period) on, the bearing capacity of building enclosure and newly-built structure is given full play to, existing shallow foundation building is protected.
In order to achieve the above objectives, the present invention provides the following technical scheme that
A kind of multi-panel is enclosed dig under the conditions of existing shallow foundation building protective device, including horizontal, vertical overlapped arc power transmission
Structure and connector for horizontal, vertical overlapped arc force transferring structure.
Arc force transferring structure includes outer arcuate steel pipe, internal prestress wire and end anchorage structure；Wherein, internal
Prestress wire is threaded through in outer arcuate steel pipe, and can adjust outer arc by the stress value of internal prestress wire
The shape of shape steel pipe；Outer arcuate steel pipe is horizontal, vertical overlap constitutes arc force transferring structure.
Outer arcuate steel pipe passes through foundation pit enclosure structure, and by end fixing bolt in its both ends and foundation pit enclosure structure
It is fixedly connected.
The end of internal prestress wire extends to outside outer arcuate steel pipe；
End anchorage structure is set on the end of internal prestress wire, and is overlapped with foundation pit enclosure structure.
End anchorage structure includes correcting wedge, backing plate, anchorage.Corresponding to the end position of outer arcuate steel pipe, anchorage,
Backing plate, correcting wedge, foundation pit enclosure structure sequentially overlap connection, while internal prestress wire sequentially passes through foundation pit enclosure knot
Structure, correcting wedge, backing plate, anchorage.
Further, end waterproof sealing gasket is additionally provided between correcting wedge and foundation pit enclosure structure.
Anchorage is used to clamp internal prestress wire, and by applying pre- answer to it to internal prestress wire tensioning
Power, reaction force caused by internal prestress wire pass sequentially through backing plate, correcting wedge, end waterproof sealing gasket and are transferred to
Foundation pit enclosure structure.
Connector is for connecting horizontal, vertical overlapped outer arcuate steel pipe.Connector includes top semicircle steel loop, lower part half
Round steel loop, vertical hinged, half steel loop horizontally rotates seat, bolt horizontally rotates seat, nut, screw rod, screw hole.
One end of top semicircle steel loop and one end of lower semicircular shape steel loop pass sequentially through vertical hinged, half steel loop level
Rotation seat connection, and one end of top semicircle steel loop and one end of lower semicircular shape steel loop can be hinged on upright plane around vertical
Interior rotation, one end of top semicircle steel loop and one end of lower semicircular shape steel loop can horizontally rotate seat in level around half steel loop
Rotation in surface.
Bolt horizontally rotates seat and is fixedly connected with the other end of top semicircle steel loop, while bolt horizontally rotates seat, spiral shell
Cap, screw rod are sequentially connected, and bolt horizontally rotates and is rotatablely connected between seat and nut, is fixedly connected between nut and screw rod, spiral shell
Cap can horizontally rotate seat around bolt with screw rod and rotate in the horizontal plane；Screw hole is located at the other end of lower semicircular shape steel loop.
Connector works together between any two in actual use, working method are as follows: by two connectors of first, second
Top semicircle steel loop and lower semicircular shape steel loop between angle pass through respective half steel loop and horizontally rotate seat and be adjusted to
In 90 °；Two connectors of first, second are individually positioned on horizontal, vertical outer arcuate steel pipe, and wherein the screw rod of first connector is connect with second
The screw hole of part is connected, and the screw rod of second connector is connected with the screw hole of first connector；By selecting nut, two companies are fastened on demand
Fitting, so that horizontal, vertical, overlapped that outer arcuate steel pipe is linked together.
The present invention also provides the construction parties that the multi-panel described in one kind encloses existing shallow foundation building protection device under the conditions of digging
Method includes the following steps:
(1) it protects the construction of diaphragm wall of building periphery foundation pit to complete, applies first of internal support of foundation pit and dig head
At layer soil to the absolute altitude for setting up outer arcuate steel pipe bottom；
(2) use high-precision directional drill, horizontal, vertical overlapped the outer arcuate steel pipe that applies below building shallow and its
Internal prestress wire applies prestressing force to it by using prestress wire inside tensioning, to adjust outer arcuate steel
The top position of pipe is to designed elevation；
(3) soil body around existing building shallow foundation is excavated to outer arcuate steel pipe bottom, according to designed connector
Working method, overlapped that outer arcuate steel pipe is connected as one by horizontal, vertical；It is connected by banding steel cage and casting concrete
Existing building shallow foundation and horizontal, vertical overlapped outer arcuate steel pipe；
(4) soil body backfill around building shallow, ground grading complete the erection of entire protective device；
(5) foundation pit continues in digging process, right according to the absolute settlement of protection building and the monitoring data of relative settlement
In the position that sedimentation value or the rate of settling transfinite, by targetedly adjust corresponding site inside prestress wire it is pre-
Stress, and then the shape of outer arcuate steel pipe is adjusted to control the sedimentation of building.
Compared with prior art, the beneficial effects of the present invention are:
(1) present invention is without carrying out large-scale artificial reinforced processing to subsoil.
(2) present invention can give full play to the bearing capacity of foundation pit enclosure structure and newly-built structure.
(3) present invention uses prestressed arc-shape steel pipe for force transferring structure, can according to the actual situation, by adjusting respective steel
The prestress value of pipe realizes targeted dynamic protection.
(4) steel pipe according to the present invention sets up and connects mainly based on tunneling engineering method, and construction period does not influence to protect
The normal use of object.
(5) present invention splices and combines to form whole force structure using single arc steel structure, can be built according to protection
Structure type (flat shape, size, type of foundation and arrangement form etc.), the shape of periphery foundation pit and the two built it is mutual
Relationship, the form of flexible arrangement ruggedized construction.
Detailed description of the invention
Fig. 1 be the multi-panel enclose dig under the conditions of existing shallow foundation building protective device application when sectional view；
Fig. 2 is the structural map of the end anchorage structure；
Fig. 3 is the structural map of the connector；
Fig. 4 is the protective device sequence of construction schematic diagram that the multi-panel encloses existing shallow foundation building under the conditions of digging,
In: (a) finished for transverse and longitudinal steel pipe and steel strand wires construction；It (b) is to be excavated to transverse and longitudinal steel pipe bottom；(c) horizontal to be connected with connector
Vertical steel pipe；It (d) is with reinforced concrete earthen backfill；
Fig. 5 be the multi-panel enclose dig under the conditions of existing shallow foundation building protective device whole schematic three dimensional views (no
Containing connector).
Description of symbols:
1. protecting building；2. building shallow；3. internal support of foundation pit；4. foundation pit enclosure structure (diaphram wall)；
5. end anchorage structure；51. correcting wedge；52. backing plate；53 anchorages；6. concrete；7. outer arcuate steel pipe；8. inside steel twists
Line；9. connector；91. top semicircle steel loop；92. lower semicircular shape steel loop；93. vertical hinged；94. half steel loop horizontally rotates
Seat；95. bolt horizontally rotates seat；96. nut；97. screw rod；98. screw hole；10. end waterproof sealing gasket；11. spiral shell is fixed in end
Bolt.
Specific embodiment
Existing shallow foundation is built under the conditions of enclosing digging to multi-panel provided by the invention below in conjunction with specific embodiment and its attached drawing
The technical solution of the protective device and construction method of building object is described further.In conjunction with following explanation, advantages of the present invention and spy
Sign will be apparent from.
It should be noted that the embodiment of the present invention has preferable implementation, it is not to any type of limit of the present invention
It is fixed.The combination of technical characteristic or technical characteristic described in the embodiment of the present invention is not construed as isolated, they can
To be combined with each other to reach superior technique effect.The range of the preferred embodiment for the present invention also may include other reality
It is existing, and this should be understood by person of ordinary skill in the field of the embodiment of the present invention.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as authorizing part of specification.Institute that is shown here and discussing
Have in example, any occurrence should be construed as merely illustratively, not as restriction.Therefore, exemplary embodiment
Other examples can have different values.
Attached drawing of the invention is all made of very simplified form and using non-accurate ratio, only to convenient, apparent
Ground aids in illustrating the purpose of the embodiment of the present invention, is not to limit the enforceable qualifications of the present invention.The modification of any structure,
The change of proportionate relationship or the adjustment of size, in the case where not influencing the effect of the invention that can be generated and the purpose that can reach,
In the range of disclosed technology contents should be fallen in capable of covering.And identical label generation appeared in attached drawing of the present invention
The identical feature of table or component, can be apply to different embodiments.
As shown in Figures 1 to 4, the present invention provide a kind of multi-panel enclose dig under the conditions of existing shallow foundation building protection dress
It sets, including horizontal, vertical overlapped arc force transferring structure and for the connector 9 of horizontal, vertical overlapped arc force transferring structure.
The arc force transferring structure includes outer arcuate steel pipe 7, internal prestress wire 8 and end anchorage structure 5；
Wherein, internal prestress wire 8 is threaded through in outer arcuate steel pipe 7, and can pass through the stress of internal prestress wire 8
Value adjusts the shape of outer arcuate steel pipe 7；Outer arcuate steel pipe 7 is horizontal, vertical overlap constitutes arc force transferring structure.
The outer arcuate steel pipe 7 passes through foundation pit enclosure structure 4, and by end fixing bolt 11 in its both ends and base
Pit enclosure structure 4 is fixedly connected.
The end anchorage structure 5 includes correcting wedge 51, backing plate 52, anchorage 53.Corresponding to outer arcuate steel pipe 7
End position, anchorage 53, backing plate 52, correcting wedge 51, foundation pit enclosure structure 4 sequentially overlap connection, while internal prestress steel
Twisted wire 8 sequentially passes through foundation pit enclosure structure 4, correcting wedge 51, backing plate 52, anchorage 53；Further, in correcting wedge 51 and foundation pit
End waterproof sealing gasket 10 is additionally provided between building enclosure 4.Wherein, anchorage 53 is used to clamp internal prestress wire 8, and
By applying prestressing force to it to internal 8 tensioning of prestress wire, reaction force caused by internal prestress wire 8 according to
It is secondary that foundation pit enclosure structure 4 is transferred to by backing plate 52, correcting wedge 51, end waterproof sealing gasket 10.
The connector 9 is for connecting horizontal, vertical overlapped outer arcuate steel pipe 7.The connector 9 includes top half
Round steel loop 91, lower semicircular shape steel loop 92, vertical hinged 93, half steel loop horizontally rotates seat 94, bolt horizontally rotates seat 95, spiral shell
Cap 96, screw rod 97, screw hole 98.
One end of the top semicircle steel loop 91 and one end of lower semicircular shape steel loop 92 pass sequentially through vertical hinged
93, half steel loop horizontally rotates the connection of seat 94, and one end of top semicircle steel loop 91 and one end of lower semicircular shape steel loop 92 can
To rotate in upright plane around vertical hinged 93, one end of top semicircle steel loop 91 and one end of lower semicircular shape steel loop 92 can
It is rotated in the horizontal plane with horizontally rotating seat 94 around half steel loop.
The bolt horizontally rotates seat 95 and is fixedly connected with the other end of top semicircle steel loop 91, while bolt is horizontal
Rotation seat 95, nut 96, screw rod 97 are sequentially connected, and bolt horizontally rotates and is rotatablely connected between seat 95 and nut 96, nut 96
It is fixedly connected between screw rod 97, nut 96 can horizontally rotate seat 95 around bolt with screw rod 97 and rotate in the horizontal plane；Described
Screw hole 98 is located at the other end of lower semicircular shape steel loop 92.
The connector 9 works together between any two in actual use, working method are as follows: by first, second two
It is horizontal that angle between the top semicircle steel loop 91 and lower semicircular shape steel loop 92 of a connector 9 passes through respective half steel loop
Rotation seat 94 is adjusted in 90 °；Two connectors 9 of first, second are individually positioned on horizontal, vertical outer arcuate steel pipe 7, and wherein first connects
The screw rod 97 of part 9 is connected with the screw hole 98 of second connector 9, and the screw rod 97 of second connector 9 is connected with the screw hole 98 of first connector 9；
By selecting nut 96, two connectors 9 are fastened on demand, so that horizontal, vertical, overlapped that outer arcuate steel pipe 7 is linked together.
As shown in figure 5, existing shallow foundation building protection fills under the conditions of enclosing digging the present invention also provides the multi-panel described in one kind
The construction method set, includes the following steps:
(1) it protects the diaphram wall 4 of 1 periphery foundation pit of building to construct to complete, applies first of internal support of foundation pit 3 and dig
At first floor soil to the absolute altitude for setting up 7 bottom of outer arcuate steel pipe；
(2) use high-precision directional drill, apply the lower section of building shallow 2 horizontal, vertical overlapped outer arcuate steel pipe and
Its internal prestress wire 8, applies prestressing force to it by using prestress wire 8 inside tensioning, adjusts outer arcuate
The top position of steel pipe 7 is to designed elevation；
(3) soil body around existing building shallow foundation 2 is excavated to 7 bottom of outer arcuate steel pipe, according to designed connection
The working method of part 9, overlapped that outer arcuate steel pipe 7 is connected as one by horizontal, vertical；Pass through banding steel cage and casting concrete
Connect existing building shallow foundation 2 and horizontal, vertical overlapped outer arcuate steel pipe 7；
(4) soil body backfill around building shallow 2, ground grading complete the erection of entire protective device；
(5) foundation pit continue digging process in, according to protection building 1 absolute settlement and relative settlement monitoring data,
For the position that sedimentation value or the rate of settling transfinite, by the inside prestress wire 8 for targetedly adjusting corresponding site
Prestressing force, and then adjust the shape of outer arcuate steel pipe 7 to control the sedimentation of building.
Foregoing description is only the description to present pre-ferred embodiments, is not any restriction to the scope of the invention.Appoint
Any change or modification what those skilled in the art makes according to the technology contents of the disclosure above should all regard
For equivalent effective embodiment, the range of technical solution of the present invention protection is belonged to.
Claims (3)
1. the protective device that a kind of multi-panel encloses existing shallow foundation building under the conditions of digging, it is characterised in that: including horizontal, longitudinal phase interconnection
The arc force transferring structure that connects and connector (9) for horizontal, vertical overlapped arc force transferring structure；
The arc force transferring structure includes outer arcuate steel pipe (7), internal prestress wire (8) and end anchorage structure
(5)；Wherein, the inside prestress wire (8) is arranged in outer arcuate steel pipe (7), and passes through internal prestress steel
The stress value of twisted wire (8) adjusts the shape of outer arcuate steel pipe (7)；
The outer arcuate steel pipe (7) pass through foundation pit enclosure structure (4), and by end fixing bolt (11) its both ends with
Foundation pit enclosure structure (4) is fixedly connected；
The end of the inside prestress wire (8) extends to outer arcuate steel pipe (7) outside；
The end anchorage structure (5) is set on the end of internal prestress wire (8), and with the foundation pit enclosure structure
(4) it overlaps；
The connector (9) includes top semicircle steel loop (91), lower semicircular shape steel loop (92), vertical hinged (93), half
Steel loop horizontally rotates seat (94), bolt horizontally rotates seat (95), nut (96), screw rod (97), screw hole (98)；
One end of the top semicircle steel loop (91) and one end of lower semicircular shape steel loop (92) pass sequentially through vertical hinged
(93), half steel loop horizontally rotates seat (94) connection, and one end of top semicircle steel loop (91) and lower semicircular shape steel loop (92)
One end rotated in upright plane around vertical hinged (93), one end of top semicircle steel loop (91) and lower semicircular shape steel loop
(92) one end horizontally rotates seat (94) around half steel loop and rotates in the horizontal plane；
The bolt horizontally rotates seat (95) and is fixedly connected with the other end of top semicircle steel loop (91)；The bolt water
Flat rotation seat (95), nut (96), screw rod (97) are sequentially connected, and bolt horizontally rotates and rotates between seat (95) and nut (96)
Connection, is fixedly connected between nut (96) and screw rod (97)；Screw hole (98) is located at the other end of lower semicircular shape steel loop (92)；
The connector (9) cooperates two-by-two, and two be used cooperatively connector (9) is individually positioned in that horizontal, vertical that overlapped is external
On curved steel tube (7), the screw rod (97) of one of connector (9) is connected with the screw hole (98) of another connector (9), described
The screw rod (97) of another connector (9) is connected with the screw hole (98) of one connector (9), tight respectively by nut (96)
Gu two connectors (9), so that horizontal, vertical, overlapped that outer arcuate steel pipe (7) is linked together；
It is horizontal simultaneously, vertical that overlapped that outer arcuate steel pipe (7) passes through banding steel cage and casting concrete and existing building shallow foundation
Plinth (2) connection.
2. the protective device that multi-panel according to claim 1 encloses existing shallow foundation building under the conditions of digging, it is characterised in that:
The end anchorage structure (5) includes correcting wedge (51), backing plate (52), anchorage (53)；
Corresponding to the end position of outer arcuate steel pipe (7), anchorage (53), backing plate (52), correcting wedge (51), foundation pit enclosure knot
Structure (4) sequentially overlaps connection, and is provided with end waterproof sealing gasket between the correcting wedge (51) and foundation pit enclosure structure (4)
(10)；
The end of the internal prestress wire (8) sequentially pass through foundation pit enclosure structure (4), end waterproof sealing gasket (10),
Correcting wedge (51), backing plate (52), anchorage (53)；
The anchorage (53) is used to clamp internal prestress wire (8), and by internal prestress wire (8) tensioning pair
It applies prestressing force；Reaction force caused by the internal prestress wire (8) passes sequentially through backing plate (52), correcting wedge
(51), end waterproof sealing gasket (10) is transferred to foundation pit enclosure structure (4).
3. multi-panel according to claim 1 enclose dig under the conditions of existing shallow foundation building protective device construction method,
It is characterized by comprising the following steps:
1) it protects the diaphram wall (4) of building (1) periphery foundation pit to construct to complete, applies first of internal support of foundation pit (3) simultaneously
It digs at first floor soil to the absolute altitude for setting up outer arcuate steel pipe (7)；
2) use high-precision directional drill, horizontal, vertical overlapped the outer arcuate steel pipe (7) that applies below building shallow (2) and
Its internal prestress wire (8) adjusts the position of outer arcuate steel pipe (7) to designed elevation by applying prestressing force；
3) bottom for excavating the soil body around existing building shallow foundation (2) to outer arcuate steel pipe (7), according to designed connection
The working method of part (9), overlapped that outer arcuate steel pipe (7) is connected as one by horizontal, vertical；By banding steel cage and pour mixed
Solidifying soil connection existing building shallow foundation (2) and horizontal, vertical overlapped outer arcuate steel pipe (7)；
4) soil body backfill around building shallow (2), ground grading complete the erection of entire protective device；
5) foundation pit continue digging process in, according to protection building (1) absolute settlement and relative settlement monitoring data, for
The position that sedimentation value or the rate of settling transfinite, by the inside prestress wire (8) for targetedly adjusting corresponding site
Prestressing force, and then the shape of outer arcuate steel pipe (7) is adjusted to control the sedimentation of building.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810078756.6A CN108396770B (en) | 2018-01-26 | 2018-01-26 | Multi-panel encloses the protective device and construction method of existing shallow foundation building under the conditions of digging |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810078756.6A CN108396770B (en) | 2018-01-26 | 2018-01-26 | Multi-panel encloses the protective device and construction method of existing shallow foundation building under the conditions of digging |
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| Publication Number | Publication Date |
|---|---|
| CN108396770A CN108396770A (en) | 2018-08-14 |
| CN108396770B true CN108396770B (en) | 2019-10-18 |
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| CN201810078756.6A Active CN108396770B (en) | 2018-01-26 | 2018-01-26 | Multi-panel encloses the protective device and construction method of existing shallow foundation building under the conditions of digging |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108951642B (en) * | 2018-08-17 | 2024-03-15 | 浙江大学城市学院 | Reinforced structure capable of preventing foundation pit from rising and crossing existing tunnel and construction method |
| CN115305934A (en) * | 2022-08-10 | 2022-11-08 | 中南大学 | Island building method for protecting existing buildings on sea area silt layer |
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| DE1634589A1 (en) * | 1966-11-29 | 1970-07-23 | Jacques Seidenberg | Network for consolidating the ground in the vicinity of already existing structures or for holding the ground in zones which are exposed to landslides, and method for producing such a network |
| CN102767194A (en) * | 2012-07-13 | 2012-11-07 | 河海大学 | Construction method for treating operating metro tunnel settlement by using anchor cable method |
| CN203066103U (en) * | 2013-01-15 | 2013-07-17 | 广州市市政工程设计研究院 | Prestressed type pile foundation underpinning structure |
| CN103397667A (en) * | 2013-07-09 | 2013-11-20 | 北京筑福国际工程技术有限责任公司 | Existing building direct storey-adding foundation structure and construction method thereof |
| CN105649089B (en) * | 2016-01-13 | 2017-11-07 | 南昌市建筑工程集团有限公司 | A kind of excavation of foundation pit closes on existing shallow foundation protection structure construction method |
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2018
- 2018-01-26 CN CN201810078756.6A patent/CN108396770B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1634589A1 (en) * | 1966-11-29 | 1970-07-23 | Jacques Seidenberg | Network for consolidating the ground in the vicinity of already existing structures or for holding the ground in zones which are exposed to landslides, and method for producing such a network |
| CN102767194A (en) * | 2012-07-13 | 2012-11-07 | 河海大学 | Construction method for treating operating metro tunnel settlement by using anchor cable method |
| CN203066103U (en) * | 2013-01-15 | 2013-07-17 | 广州市市政工程设计研究院 | Prestressed type pile foundation underpinning structure |
| CN103397667A (en) * | 2013-07-09 | 2013-11-20 | 北京筑福国际工程技术有限责任公司 | Existing building direct storey-adding foundation structure and construction method thereof |
| CN105649089B (en) * | 2016-01-13 | 2017-11-07 | 南昌市建筑工程集团有限公司 | A kind of excavation of foundation pit closes on existing shallow foundation protection structure construction method |
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