CN208870041U - Protect the foundation pit structure of surrounding building - Google Patents
Protect the foundation pit structure of surrounding building Download PDFInfo
- Publication number
- CN208870041U CN208870041U CN201821287770.9U CN201821287770U CN208870041U CN 208870041 U CN208870041 U CN 208870041U CN 201821287770 U CN201821287770 U CN 201821287770U CN 208870041 U CN208870041 U CN 208870041U
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- CN
- China
- Prior art keywords
- grouting
- canal
- foundation pit
- rear baffle
- front apron
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model belongs to foundation pit construction technical field, it is intended to provide a kind of foundation pit structure for protecting surrounding building, its key points of the technical solution are that including foundation pit, the foundation pit is provided with grouting canal close to the side of building, it is fitted with front apron and rear baffle respectively on two inner sidewalls of its length direction in the grouting canal, top bracing member is equipped between front apron and rear baffle, the both ends of the top bracing member contact at front apron and rear baffle respectively, concrete mortar is perfused between the front apron and rear baffle, the grouting canal is equipped with several grouting columns close to the side of building.Surrounding building and foundation pit are spaced by the foundation pit structure of this protection surrounding building using grouting column and grouting canal, to realize to surrounding building stable protection for a long time.
Description
Technical field
The utility model relates to foundation pit construction technical field, in particular to a kind of foundation pit structure for protecting surrounding building.
Background technique
With the fast development of urban construction, since soil is rare, site coverage is continued to increase for downtown area, building
Height also constantly increase.In order to save land resource, many buildings are seized every opportunity, by existing building and apart from existing
The close place of building is built.
In the prior art, in building constructure, it usually needs excavation pit on the ground, and due to the height of building
It is higher, therefore excavation of foundation pit is not only big but also deep.The building of surrounding enviroment can squeeze the soil of foundation pit side-wall, and foundation pit
Side wall it is higher, be difficult to bear the extruding of proposed building, therefore will form phenomena such as collapsing.
In the prior art, supporting usually is carried out to foundation pit using plate brad supporting, the drawing forms such as anchor or suspension roof support, and
Soil nailing draws the withdrawal resistance of anchor or anchor pole lower, and during carrying out supporting to foundation pit, surrounding buildings can only be coped in the short time
The extruding of object is difficult to carry out ambient enviroment protection steady in a long-term.
Utility model content
The purpose of the utility model is to provide a kind of foundation pit structures for protecting surrounding building, have protection steady in a long-term
The advantages of buildings around foundation pit.
The above-mentioned technical purpose of the utility model has the technical scheme that
A kind of foundation pit structure for protecting surrounding building, including foundation pit, the foundation pit are provided with filling close to the side of building
Canal is starched, is fitted with several pieces of front aprons and rear baffle, the front apron respectively on two inner sidewalls of the grouting canal longitudinal direction
It is successively laid with rear baffle along the longitudinal direction of grouting canal, top bracing member is equipped between front apron and rear baffle, it is described to shore
The both ends of part contact at front apron and rear baffle respectively, and concrete mortar is perfused between the front apron and rear baffle, described
Grouting canal is equipped with several grouting columns close to the side of building.
By using above-mentioned technical proposal, the grouting canal and grouting column of setting are by the soil and base below surrounding building
Hole separates, and the top bracing member being arranged in grouting canal strengthens the intensity of its internal structure, and grouting canal and grouting column cooperate jointly, improve
Soil below surrounding building is transitioned into the intensity between foundation pit, to reduce the power that is squeezed of foundation pit side-wall.It utilizes
The concrete and grouting column that are perfused in grouting canal bear the extruding force of surrounding building simultaneously, so that the building on foundation pit periphery
Protection steady in a long-term is obtained.
Further setting: several placing grooves are vertically provided on the front apron and rear baffle, the placing groove is along preceding
The distribution of the length direction of baffle and rear baffle, the top bracing member includes shore, and the shore is threaded rod, both ends difference
It is bolted with fastening nut, the both ends of the shore are plugged in respectively in front apron and the opposite placing groove of rear baffle, described tight
Gu nut is pushed against on front apron and rear baffle respectively.
By using above-mentioned technical proposal, the both ends of shore are located in two opposite placing grooves, then screw fastening
Nut, fastening nut are pressed on front apron and rear baffle, by compressing for fastening nut, limit front apron and rear baffle it
Between interval so that the concrete mortar of perfusion is more uniform, while shore is located in concrete mortar, so that the canal that is in the milk
Internal structure further strengthens.
Further setting: pad is set respectively between the fastening nut and front apron, between the fastening nut and rear baffle
There is rubber washer, the rubber washer is set on shore.
By using above-mentioned technical proposal, rubber washer makes between fastening nut and front apron, fastening nut is kept off with rear
Contact between plate is flexible contact, and the clamp force of stinging between fastening nut and shore is avoided to damage front apron and rear baffle by pressure.
Further setting: the grouting column includes injected hole and the steel reinforcement cage that is plugged in injected hole, in the injected hole
It is perfused with concrete mortar.
By using above-mentioned technical proposal, the setting of steel reinforcement cage strengthens the intensity of grouting column internal structure, so as to
Bear it is bigger it is horizontal and vertical on load.
Further setting: being vertically welded with several H profile steels in the steel reinforcement cage, the H profile steel along steel reinforcement cage circle
All inner walls are uniformly distributed, and the quantity of the H profile steel is even number, are welded between two H profile steels along the distribution of steel reinforcement cage diameter
There is deformed bar.
By using above-mentioned technical proposal, H profile steel and deformed bar are worked in coordination, so that the structural strength in grouting column
It further strengthens.
Further setting: the canal bottom of the grouting canal is equipped with several bottom bracing fashioned iron blocks, the end of the bottom bracing fashioned iron block
Portion's sectional view is in " mouth " shape, and the bottom bracing fashioned iron block is successively laid with along the longitudinal direction of grouting canal, the bottom bracing fashioned iron block back
It is provided with mudhole on one side from grouting canal canal bottom, the front apron and rear baffle are welded on above bottom bracing fashioned iron block.
By using above-mentioned technical proposal, before to grouting canal irrigation concrete mortar, need to clear up grouting canal,
So that concrete can be filled more entirely in grouting canal.When cleaning, soil dregs can be cleared away by mudhole and be arrived
In " mouth " the shape region of bottom bracing fashioned iron block, it is not necessary to by handling apparatus by soil dregs hang grouting canal in, the canal that is in the milk it is clear
Reason process is more convenient.
Further setting: the bottom bracing fashioned iron block is equipped with the closure plug matched with mudhole.
By using above-mentioned technical proposal, plug will be blocked and got lodged on mudhole, concrete mortar can be effectively prevent to pass through
Mudhole enters in bottom bracing fashioned iron block.
Further be arranged: the closure plug is including stick harness and is fixedly connected on the cover board above clogging, outside the stick harness
Diameter is less than the internal diameter of mudhole, and the diameter of the cover board is greater than the internal diameter of mudhole.
By using above-mentioned technical proposal, for cover board for blocking mudhole, stick harness plays guiding role, while can be true
Cover board is protected to be always positioned on mudhole.
In conclusion the utility model has the following beneficial effects: using grouting column and grouting canal by surrounding building and
Foundation pit is spaced, to realize the protection to surrounding building long-time stable.
Detailed description of the invention
Fig. 1 is the cross-sectional view for embodying the utility model internal structure；
Fig. 2 is the enlarged drawing for embodying the portion A in Fig. 1；
Fig. 3 is the structural schematic diagram for embodying front apron；
Fig. 4 is the structural schematic diagram for embodying steel reinforcement cage.
In figure, 1, foundation pit；2, be in the milk canal；3, front apron；4, rear baffle；5, bottom bracing fashioned iron block；51, mudhole；52, it blocks
Plug；521, stick harness；522, cover board；6, top bracing member；61, shore；62, fastening nut；63, rubber washer；7, placing groove；8, it fills
Starch column；81, injected hole；82, steel reinforcement cage；821, H profile steel；822, deformed bar.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
Embodiment: a kind of foundation pit structure for protecting surrounding building, referring to Fig.1, including foundation pit 1, in foundation pit 1 close to building
The side of object is provided with grouting canal 2, and grouting canal 2 is distributed along the edge of foundation pit 1.
Referring to Fig.1, several pieces of front aprons 3 and rear baffle 4 are fitted with respectively on two inner sidewalls of grouting canal 2, several pieces
Front apron 3 and rear baffle 4 are set gradually respectively along the length direction of grouting canal 2.
Referring to Fig.1, several bottom bracing fashioned iron blocks 5 are placed at the canal bottom of grouting canal 2, bottom bracing fashioned iron block 5 is along grouting canal 2
Canal bottom be sequentially placed, bottom bracing fashioned iron block 5 be in cuboid-type, end cross-section be in " mouth " shape.Front apron 3 and rear baffle 4 weld
It connects in the top of bottom bracing fashioned iron block 5.
Referring to Figures 1 and 2, bottom bracing fashioned iron block 5 is towards being provided with mudhole 51, spoil disposal in the one side of front apron 3 and rear baffle 4
In the perforation to " mouth " the shape region of bottom bracing fashioned iron block 5 of hole 51.
Referring to Figures 1 and 2, with mudhole 51 with the use of there is closure plug 52, blocking plug 52 includes being plugged in mudhole 51
Interior stick harness 521 and the cover board 522 being fixedly connected on above stick harness 521, the outer diameter of stick harness 521 are less than the internal diameter of mudhole 51,
The diameter of cover board 522 is greater than the internal diameter of mudhole 51.
Referring to Figures 1 and 2, top bracing member 6 is provided between front apron 3 and rear baffle 4, top bracing member 6 includes shore 61,
Shore 61 is threaded rod, is bolted with fastening nut 63 respectively at the both ends of shore 61.It is vertical on front apron 3 and rear baffle 4
Several placing grooves 7(is provided with referring to Fig. 3), placing groove 7 is uniformly distributed along the length direction of front apron 3 and rear baffle 4.
Referring to Figures 1 and 2, shore 61 is respectively perpendicular to front apron 3 and rear baffle 4, is arranged at the both ends of shore 61
There is rubber washer 62, the both ends of shore 61 are individually positioned in front apron 3 and the placing groove 7(of rear baffle 4 is interior referring to Fig. 3), will
After shore 61 is placed in placing groove 7, fastening nut 63 is tightened, fastening nut 63 compresses rubber washer 62, so that rubber pad
Circle 62 is pressed on front apron 3 and rear baffle 4, as fastening nut 63 moves closer to front apron 3 and rear baffle 4, realizes top
Press of the strut 61 to front apron 3 and rear baffle 4, so that the interval between front apron 3 and rear baffle 4 is determined.
Referring to Figures 1 and 2, after the completion of all shores 61 fasten, the fill concrete mortar in grouting canal 2 is mixed
It is bonded to each other between solidifying soil sand slurry and top bracing member 6, so that having higher structural strength after concrete desiccation.
Referring to Fig.1, it is equipped with grouting column 8 close to the side of building positioned at grouting canal 2, grouting column 8 includes 81 He of injected hole
Referring to Fig. 4), steel reinforcement cage 82 is plugged in injected hole 81 steel reinforcement cage 82(.For the inner structural strength of stiffener cage 82,
Several H profile steels 821(is vertically provided in steel reinforcement cage 82 referring to Fig. 4), the quantity of H profile steel 821 is even number, several H-types
Steel 821 is uniformly distributed along the circumferential inner wall of steel reinforcement cage 82, is welded between two H profile steels 821 along the distribution of 82 diameter of steel reinforcement cage
Deformed bar 822(is connected to referring to Fig. 4).
After steel reinforcement cage 82 is plugged in injected hole 81, towards injected hole 81 in penetration concrete mortar, pass through steel reinforcement cage
82, the cooperation of H profile steel 821 and deformed bar 822 is realized and is further strengthened to grouting 8 internal structure of column, enables it to
It is enough to bear bigger load.
Specific construction process:
1, injected hole 81 is excavated on the ground, and steel reinforcement cage 82 is hung in injected hole 81, after steel reinforcement cage 82 is installed,
Fill concrete mortar in towards injected hole 81；
2, grouting canal 2 is excavated towards the side of injected hole 81 in foundation pit 1, the grouting canal 2 excavated in order to prevent is when excavating
Collapse phenomenon occurs, excavate be in the milk canal 2 during, after excavating to certain depth, pasted on two inner sidewalls of grouting canal 2
Attached front apron 3 and rear baffle 4, carry out temporary support between front apron 3 and rear baffle 4, then continue to excavate grouting canal 2, grouting
Canal 2 is every to be excavated to after certain depth, and front apron 3 and rear baffle 4 are pushed, until grouting canal 2 is excavated to calibration depth；
3, bottom bracing fashioned iron block 5 is hung in into grouting canal 2, each bottom bracing fashioned iron block 5 is laid with along the length direction of grouting canal 2
At the canal bottom of grouting canal 2, bottom bracing fashioned iron block 5 is connected to front apron 3 and rear baffle 4 by welding manner；
4, shore 61 is installed between front apron 3 and rear baffle 4, fastening nut 62 is screwed, so that before top bracing member 6 is held out against
Baffle 3 and rear baffle 4；
5, the temporary support between front apron 3 and rear baffle 4 is shed, then grouting canal 2 is cleared up, the soil of cleaning
Dregs are swept into " mouth " shape cavity of bottom bracing fashioned iron block 5 by mudhole 51；
6, plug 52 is blocked on mudhole 51, is filled with concrete mortar simultaneously towards being in the milk in canal 2.
The above embodiments are only the explanation to the utility model, are not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (8)
1. a kind of foundation pit structure for protecting surrounding building, including foundation pit (1), it is characterized in that: the foundation pit (1) is close to building
Side be provided with grouting canal (2), it is described grouting canal (2) longitudinal direction two inner sidewalls on be fitted with several pieces of front aprons respectively
(3) it is successively laid with rear baffle (4), the front apron (3) and rear baffle (4) along the longitudinal direction of grouting canal (2), in front
Between plate (3) and rear baffle (4) be equipped with top bracing member (6), the both ends of the top bracing member (6) contact at respectively front apron (3) and after
Baffle (4) is perfused with concrete mortar between the front apron (3) and rear baffle (4), the grouting canal (2) is close to building
Side be equipped with several grouting column (8).
2. it is according to claim 1 protection surrounding building foundation pit structure, it is characterized in that: the front apron (3) and after
Vertically be provided with several placing grooves (7) on baffle (4), the placing groove (7) along front apron (3) and rear baffle (4) length
Directional spreding, the top bracing member (6) include shore (61), and the shore (61) is threaded rod, and both ends are bolted with respectively
Fastening nut (63), the both ends of the shore (61) are plugged in front apron (3) and the opposite placing groove of rear baffle (4) respectively
(7) in, the fastening nut (63) is pushed against respectively on front apron (3) and rear baffle (4).
3. it is according to claim 2 protection surrounding building foundation pit structure, it is characterized in that: the fastening nut (63) with
Pad is equipped with rubber washer (62) respectively between front apron (3), between the fastening nut (63) and rear baffle (4), the rubber
Washer (62) is set on shore (61).
4. the foundation pit structure of protection surrounding building according to claim 1, it is characterized in that: the grouting column (8) includes
Injected hole (81) and the steel reinforcement cage (82) being plugged in injected hole (81), the injected hole (81) is interior to be perfused with concrete mortar.
5. the foundation pit structure of protection surrounding building according to claim 4, it is characterized in that: being erected in the steel reinforcement cage (82)
To several H profile steels (821) are welded with, the H profile steel (821) is uniformly distributed along the circumferential inner wall of steel reinforcement cage (82), the H
The quantity of fashioned iron (821) is even number, is welded with pre- answer between two H profile steels (821) along the distribution of steel reinforcement cage (82) diameter
Power reinforcing bar (822).
6. the foundation pit structure of protection surrounding building according to claim 1, it is characterized in that: the canal of grouting canal (2)
Bottom is equipped with several bottom bracing fashioned iron blocks (5), and the end cross-section of the bottom bracing fashioned iron block (5) is in " mouth " shape, the bottom bracing type
Bloom (5) is successively laid with along the longitudinal direction of grouting canal (2), and the bottom bracing fashioned iron block (5) deviates from the one of grouting canal (2) canal bottom
Face is provided with mudhole (51), and the front apron (3) and rear baffle (4) are welded on above bottom bracing fashioned iron block (5).
7. the foundation pit structure of protection surrounding building according to claim 6, it is characterized in that: the bottom bracing fashioned iron block (5)
It is equipped with the closure plug (52) matched with mudhole (51).
8. the foundation pit structure of protection surrounding building according to claim 7, it is characterized in that: closure plug (52) includes
Stick harness (521) and being fixedly connected on clogs the cover board (522) of top, and the outer diameter of the stick harness (521) is less than mudhole (51)
Internal diameter, the diameter of the cover board (522) are greater than the internal diameter of mudhole (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821287770.9U CN208870041U (en) | 2018-08-09 | 2018-08-09 | Protect the foundation pit structure of surrounding building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821287770.9U CN208870041U (en) | 2018-08-09 | 2018-08-09 | Protect the foundation pit structure of surrounding building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208870041U true CN208870041U (en) | 2019-05-17 |
Family
ID=66464429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821287770.9U Expired - Fee Related CN208870041U (en) | 2018-08-09 | 2018-08-09 | Protect the foundation pit structure of surrounding building |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208870041U (en) |
-
2018
- 2018-08-09 CN CN201821287770.9U patent/CN208870041U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190517 Termination date: 20210809 |