CN207919602U - Excavation of foundation pit closes on the supporting construction of existing shallow foundation - Google Patents
Excavation of foundation pit closes on the supporting construction of existing shallow foundation Download PDFInfo
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- CN207919602U CN207919602U CN201720466489.0U CN201720466489U CN207919602U CN 207919602 U CN207919602 U CN 207919602U CN 201720466489 U CN201720466489 U CN 201720466489U CN 207919602 U CN207919602 U CN 207919602U
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Abstract
The utility model belongs to building field, and in particular to a kind of excavation of foundation pit closes on the supporting construction of existing shallow foundation.Ground reinforcing body is set in existing building basic infrastructure, the band that intercepts water is set on the outside of foundation reinforcement reinforcing body, band top sets crossbeam intercepting water；Vertical deformation adjustment structure and transversely deforming adjustment structure are respectively set between building foundation and foundation reinforcement reinforcing body, crossbeam, vertical deformation adjustment structure includes top raising plate and lower part loading plate, it is respectively arranged with vertical pressure diffuser plate on top raising plate and lower part loading plate, vertical buttress and vertical motor-driven jack are provided between vertical pressure diffuser plate, level meter is installed on vertical pressure diffuser plate on the raising plate of top, level meter is connect with controller, controller is connect with driver, and driver is connect with vertical motor-driven jack.
Description
Technical field
The utility model belongs to building field, and in particular to a kind of excavation of foundation pit closes on the supporting construction of existing shallow foundation.
Background technology
In recent years, with the rapid economic development in our country, urban construction process is constantly accelerated, a large amount of reconstruction of the old city town and ground
Lower engineering is related to deep excavation project more, and some of base pit engineerings can be excavated close to existing building basis.
Case history shows that Excavation Process is complex, and resistance to shear of soil release, underground are often accompanied by digging process
The engineering problems such as water excludes, Ground Settlement of Deep Foundation Pit deforms, it is lateral that these engineering problems may all cause foundation pit neighboring buildings to occur
Deformation and vertical deformation, and then the safe condition of building is caused constantly to deteriorate, the influence to shallow foundation safe condition is especially prominent.
At present in engineering, the pattern foundation pit supporting structure mode for protection of taking the initiative often in excavation of foundation pit is such as arranged vertical campshed, beats
If transversal reinforcement body, laying inner support etc..Though these engineering measures can largely improve the stable state of foundation pit, increase
The strong safety for closing on building, but these measures primarily focus on the stability for maintaining foundation pit side-wall, it is difficult to solve existing face
Closely build the transversely deforming occurred in Excavation Process and lateral deformation problem.Engineering practice shows Excavation Process
In, in terms of existing building correction, have clay rectifying method, immersion rectifying method, precipitation rectifying method, pressing Ioad rectifying method, anchor
Stake pressurization rectifying method etc., these building Deviation Correction methods mainly for apparent inclined building has occurred, to soil rigidity and building
Overall stiffness requires promotion that is high, being difficult to realize the dynamic control to building Deviation Correction, do not consider Carrying capacity.
Applicant Jiangxi Bo Hui engineering services Co., Ltd applied on 01 13rd, 2016《A kind of excavation of foundation pit
Close on existing shallow foundation protection structure》（Application number CN201620029054.5）, specifically disclose existing building basic infrastructure,
Foundation reinforcement reinforcing body, lateral deformation soldier pile is respectively set in fundamental external closing foundation ditch side；In building foundation and lateral deformation
Soil cement is set between soldier pile and cures the band that intercepts water, intercepts water in soil cement solidification and sets crossbeam with top；In building foundation and ground
Vertical deformation adjustment structure and transversely deforming adjustment structure are respectively set between reinforcing body, crossbeam；Under from crossbeam to basis
Portion soil body direction sets oblique anchoring body.
Above-mentioned patent needs prodigious power, the hydraulic jack of High power output is used in engineering in vertical jack
Top, artificial or additionaling power make jack work, great work intensity, and power output is inaccurate, and accident easily occurs, cannot solve instead
The problem of transversely deforming and vertical deformation.
Invention content
The purpose of this utility model provides the supporting construction that a kind of excavation of foundation pit closes on existing shallow foundation, can detect and build in time
Build the basic vertically deformation with lateral both direction.
The purpose of this utility model is realized in the following manner：Excavation of foundation pit closes on the supporting construction of existing shallow foundation,
Ground reinforcing body is set in existing building basic infrastructure, the band that intercepts water is set on the outside of foundation reinforcement reinforcing body, is taken intercepting water
Portion sets crossbeam；Vertical deformation adjustment structure is respectively set between building foundation and foundation reinforcement reinforcing body, crossbeam and laterally becomes
Shape adjustment structure, vertical deformation adjustment structure include top raising plate and lower part loading plate, top raising plate and lower part loading plate
On be respectively arranged with vertical pressure diffuser plate, vertical buttress and vertical motor-driven jack are provided between vertical pressure diffuser plate,
Level meter is installed on vertical pressure diffuser plate on the raising plate of top, level meter is connect with controller, controller and driver
Connection, driver connect with vertical motor-driven jack, transversely deforming adjustment structure include transverse electric jack, transverse direction buttress,
Cross-brace plate and transverse pressure diffuser plate；One end of transverse electric jack and lateral buttress by transverse pressure diffuser plate with
Cross-brace plate contacts, and support column and loading plate is provided between crossbeam and cross-brace plate, the other end is expanded by transverse pressure
The transverse pressure diffuser plate to fall apart with side contacts outside side contacts outside the vertical edges of top raising plate, with the vertical edges of top raising plate
On verticality detector is installed, verticality detector is connect with controller, and controller is connect with driver, driver and transverse direction
Motor-driven jack connects.
The crossbeam includes cross-beam body made of concreting, and several are provided along its length in cross-beam body
Reinforcing bar, wherein at least two parallel reinforced steel bars are disposed on the same plane.
The support column includes concrete and steel reinforcement cage, and there are steel at the both ends of support column for the transverse steel in steel reinforcement cage
Muscle head, one end are integrated with loading plate consolidation, and the other end is integrated with cross-brace plate consolidation.
The utility model has the beneficial effects that：Vertical jack and lateral jack are all made of motor-driven jack, with control
Device connects, and verticality detector and level meter can monitor deformation of the building foundation vertically with lateral both direction, driving in real time
Vertical jack and lateral jack control the deformation of the vertical and lateral both direction of building foundation.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Specific implementation mode
As shown in Figure 1, excavation of foundation pit closes on the supporting construction of existing shallow foundation, it is configured in basic 1 lower part of existing building
The band 5 that intercepts water is arranged in base reinforcing body 8,8 outside of foundation reinforcement reinforcing body, and intercepting water, 5 top of band sets crossbeam 20, and crossbeam 20 includes
Cross-beam body made of concreting is provided along its length several reinforcing bars, wherein at least two steel in cross-beam body
Muscle is arranged in parallel in the same plane, and vertical change is respectively set between building foundation 1 and foundation reinforcement reinforcing body 8, crossbeam 20
Shape adjustment structure and transversely deforming adjustment structure, vertical deformation adjustment structure include top raising plate 15 and lower part loading plate 9, on
Raising plate 15 cross section in portion's is L-type plate, and vertical pressure diffuser plate is respectively arranged on top raising plate 15 and lower part loading plate 9
21, vertical buttress 7 and vertical motor-driven jack 10 are provided between vertical pressure diffuser plate 21, it is vertical on top raising plate 15
Level meter 12 is installed, level meter 12 is connect with controller 6, and controller 6 is connect with driver 4, driver 4 on pressure diffusion plate
It is connect with vertical motor-driven jack 10, transversely deforming adjustment structure includes transverse electric jack 14, lateral buttress 16, laterally branch
Fagging 17 and transverse pressure diffuser plate 2；One end of transverse electric jack 14 and lateral buttress 16 passes through transverse pressure diffuser plate 2
It is contacted with cross-brace plate 17, support column 18 and loading plate 19 is provided between crossbeam 20 and cross-brace plate 17, the other end is logical
Vertical edges outer side contacts of the transverse pressure diffuser plate 2 with top raising plate 15 are crossed, with side contacts outside the vertical edges of top raising plate
Transverse pressure diffuser plate on verticality detector 3 is installed, verticality detector 3 is connect with controller 6, controller 6 with drive
Dynamic device 2 connects, and driver 2 is connect with transverse electric jack 14, and support column 18 includes concrete and steel reinforcement cage, in steel reinforcement cage
Transverse steel is at the both ends of support column there are steel bar end, and one end is integrated with the consolidation of loading plate 19, the other end and cross-brace
The consolidation of plate 17 is integrated.
Claims (3)
1. excavation of foundation pit closes on the supporting construction of existing shallow foundation, ground reinforcing body is set in existing building basic infrastructure,
The band that intercepts water is set on the outside of foundation reinforcement reinforcing body, and intercepting water, band top sets crossbeam；In building foundation and foundation reinforcement reinforcing body, cross
Vertical deformation adjustment structure and transversely deforming adjustment structure are respectively set between beam, it is characterised in that：Vertical deformation adjustment structure
Including top raising plate and lower part loading plate, it is respectively arranged with vertical pressure diffuser plate on top raising plate and lower part loading plate,
Vertical buttress and vertical motor-driven jack are provided between vertical pressure diffuser plate, the vertical pressure diffuser plate on the raising plate of top
On level meter is installed, level meter is connect with controller, and controller is connect with driver, and driver and vertical motor-driven jack connect
It connects, transversely deforming adjustment structure includes transverse electric jack, lateral buttress, cross-brace plate and transverse pressure diffuser plate；It is horizontal
It is contacted to one end of motor-driven jack and lateral buttress with cross-brace plate by transverse pressure diffuser plate, crossbeam and cross-brace
Support column and loading plate are provided between plate, the other end on the outside of transverse pressure diffuser plate and the vertical edges of top raising plate by connecing
It touches, and verticality detector is installed outside the vertical edges of top raising plate on the transverse pressure diffuser plate of side contacts, verticality inspection
It surveys instrument to connect with controller, controller is connect with driver, and driver is connect with transverse electric jack.
2. excavation of foundation pit according to claim 1 closes on the supporting construction of existing shallow foundation, it is characterised in that：The crossbeam
Including cross-beam body made of concreting, it is provided along its length several reinforcing bars in cross-beam body, wherein at least two
Root parallel reinforced steel bar is disposed on the same plane.
3. excavation of foundation pit according to claim 2 closes on the supporting construction of existing shallow foundation, it is characterised in that：The support
Column includes concrete and steel reinforcement cage, and there are steel bar end, one end and carryings at the both ends of support column for the transverse steel in steel reinforcement cage
Plate consolidation is integrated, and the other end is integrated with cross-brace plate consolidation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720466489.0U CN207919602U (en) | 2017-04-28 | 2017-04-28 | Excavation of foundation pit closes on the supporting construction of existing shallow foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720466489.0U CN207919602U (en) | 2017-04-28 | 2017-04-28 | Excavation of foundation pit closes on the supporting construction of existing shallow foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207919602U true CN207919602U (en) | 2018-09-28 |
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ID=63611622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720466489.0U Active CN207919602U (en) | 2017-04-28 | 2017-04-28 | Excavation of foundation pit closes on the supporting construction of existing shallow foundation |
Country Status (1)
| Country | Link |
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| CN (1) | CN207919602U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111549784A (en) * | 2020-05-26 | 2020-08-18 | 武汉金涛岩土工程有限公司 | Construction process of foundation pit adjacent to building |
-
2017
- 2017-04-28 CN CN201720466489.0U patent/CN207919602U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111549784A (en) * | 2020-05-26 | 2020-08-18 | 武汉金涛岩土工程有限公司 | Construction process of foundation pit adjacent to building |
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