CN208379611U - A kind of deep foundation pit support structure - Google Patents
A kind of deep foundation pit support structure Download PDFInfo
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- CN208379611U CN208379611U CN201820954193.8U CN201820954193U CN208379611U CN 208379611 U CN208379611 U CN 208379611U CN 201820954193 U CN201820954193 U CN 201820954193U CN 208379611 U CN208379611 U CN 208379611U
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- Prior art keywords
- foundation pit
- supporting beam
- supporting
- enclosure wall
- support structure
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Abstract
The utility model discloses a kind of deep foundation pit support structures, it is related to Base hole supporting technology field, it aims to solve the problem that and encounters the phenomenon that earth pressure at rest increase is likely to occur support construction deformation, technical points are: including the enclosure wall being arranged on foundation pit side-wall, enclosure wall bottom two opposite sides are equipped with bottom beam, the enclosure wall bottom is equipped with the suspension device perpendicular to bottom beam, the suspension device includes movable beam, the movable beam is equipped with the first supporting beam with respect to enclosure wall side, first supporting beam is rotatably connected to the second supporting beam, first supporting beam is coaxially disposed and is threadedly coupled with the second supporting beam, and the enclosure wall far from movable beam side is equipped with fixing seat, the fixing seat is equipped with the driving mechanism for driving the second supporting beam to rotate.The utility model can avoid foundation pit supporting construction deformation, to overcome the problems, such as in the poor building foundation pit supporting engineering of geological conditions that low safety, structural instability, cost are high.
Description
Technical field
The utility model relates to Base hole supporting technology field more particularly to a kind of deep foundation pit support structures.
Background technique
Deep basal pit refer to cutting depth be more than 5 meters (containing 5 meters) or three layers of basement or more (containing three layers) though or depth do not surpass
Cross 5 meters, but geological conditions and ambient enviroment and the especially complex engineering of underground utilities, base pit engineering mainly includes pattern foundation pit supporting structure body
It is design and construction and earth excavation, is a comprehensive very strong system engineering, it requires geotechnical engineering and Structural Engineering skill
Art personnel's close fit, foundation pit supporting system are temporary structures, are no longer needed for after the completion of underground engineering construction, foundation pit and base
Slot is all the basis for building building, and only flat shape is different.
Existing notification number is that the Chinese patent of CN202672158U discloses a kind of adjustable simple fastening deep pit support
Protection unit, including movable beam, movable support, preceding secondary support beam, rear secondary support beam, front support iron voussoir group, rear support iron
Voussoir group；Movable beam is made of steel pipe；Movable support is made of bottom plate, secondary support beam, stiffener plate；Bottom plate is in side
The side length of shape, bottom plate is suitable with the diameter of the movable beam of steel pipe type, and secondary support beam is three points for movable beam diameter by diameter
One of steel pipe constitute, muti-piece stiffener plate is uniformly welded on the steel pipe circumference and bottom plate of secondary support beam；Preceding secondary support beam and
Secondary support beam is the steel pipe for the one third that diameter is movable beam diameter, the both ends of preceding secondary support beam and rear secondary support beam afterwards
Head is blocked by square plate, and front support iron voussoir group and rear support iron voussoir group are process by thick steel plate.
If but this supporting way encounters earth pressure at rest and increases, has been more than that structure allows load, in fact it could happen that branch
The phenomenon that support structure deforms, and this process is usually sudden, therefore is easy to happen catastrophic accident.
Utility model content
The purpose of the utility model is to provide a kind of deep foundation pit support structures, and foundation pit supporting construction is avoided to deform, to overcome
The problem that safety is low in the poor building foundation pit supporting engineering of geological conditions, structural instability, cost are high.
The above-mentioned technical purpose of the utility model has the technical scheme that
A kind of deep foundation pit support structure, including the enclosure wall being arranged on foundation pit side-wall, the enclosure wall bottom two is opposite
Side is equipped with bottom beam, and the enclosure wall bottom is equipped with the suspension device perpendicular to bottom beam, and the suspension device includes movable beam, institute
It states movable beam and is equipped with the first supporting beam with respect to enclosure wall side, first supporting beam is rotatably connected to the second supporting beam, institute
It states the first supporting beam and is coaxially disposed and is threadedly coupled with the second supporting beam, and the enclosure wall far from movable beam side is equipped with
Fixing seat, the fixing seat are equipped with the driving mechanism for driving the second supporting beam to rotate.
By using above-mentioned technical proposal, in enclosure wall bottom, opposite two sides are provided with bottom beam and the branch perpendicular to bottom beam
Protection unit, to avoid foundation pit supporting construction from deforming, with overcome geological conditions poor building foundation pit supporting engineering in safety
The high problem of low, structural instability, cost；Specifically, therefore according to factors such as the specific size of foundation pit and its earth pressure at rests
The second supporting beam is rotated, drives movable beam to be displaced along bottom beam direction and is supported on enclosure wall with abutting, is effectively prevented from
Because foundation pit enclosure wall displacement size is poor, the case where causing the supporting of adjustable suspension device not fasten appearance.
Further, the driving mechanism includes the transmission shaft being rotatably arranged in fixing seat, the transmission shaft perpendicular to
Second supporting beam is connected between the transmission shaft and the second supporting beam by Bevel Gear Transmission.
Cooperate the first supporting beam and the second supporting beam using the kind of drive of bevel gear by using above-mentioned technical proposal
Helicitic texture, make whole while have self-lock ability, operate more convenient, easy to implement, guarantee foundation pit branch
Protection structure will not deform.
Further, the transmission shaft is equipped with servo motor far from bevel gear one end.
By using above-mentioned technical proposal, when driving servo motor, rotate coaxially transmission shaft holding, first bevel gear
With second bevel gear engaged transmission to ensure that the second supporting beam rotates, drive the first supporting beam along bottom beam side followed by screw thread
The bearing capacity of enclosure wall is improved to displacement so that movable beam abutting is supported on enclosure wall.
Further, two bottom beam opposite sides are provided with the guide groove being arranged along its length, described movable
Beam two sides are equipped with the limited post being slidably connected with guide groove.
By using above-mentioned technical proposal, it is movable that limited post is placed in guide groove, on the one hand plays limitation first
The effect of beam radial displacement is supportted, on the other hand assists the first supporting beam and the second supporting beam when passing through threads turn along bottom beam direction
Displacement.
Further, second supporting beam, which is equipped with, limits the first Reinforced Hoop for supporting Liang Sicheng, on the Reinforced Hoop
Equipped with the clamping screw fixed with the second supporting beam.
Reinforcement can be rotated when movable beam abutting is supported on enclosure wall by using above-mentioned technical proposal
Hoop is connected to the end of the first supporting beam, and is fixed Reinforced Hoop and the second supporting beam using clamping screw, to limit the
One supporting beam loosens displacement under earth pressure at rest effect, to provide further safety guarantee, ensures the stabilization of support construction
Property.
Further, the compression displacement amount of 10-12cm is kept between the Reinforced Hoop and the first supporting beam.
By using above-mentioned technical proposal, the compression displacement of 10-12cm is reserved between Reinforced Hoop and the first supporting beam
Amount, when the earth pressure at rest acted on enclosure wall is excessive, can by suspension device generate horizontal direction on decrement with
Overburden portion power is laid down, the load acted on enclosure wall is reduced and avoids propping up at this point, Reinforced Hoop can play the role of insurance
The support structure catastrophic failure after bearing capacity that oversteps the extreme limit causes safety accident.
Further, the Reinforced Hoop is equipped with pressure sensor, and the pressure sensor communication, which is connected with, to be arranged in base
Alarm device outside hole.
By using above-mentioned technical proposal, when the first supporting beam is abutted on Reinforced Hoop by long-time extruding, pressure is passed
Sensor is able to detect that physical pressure information, then is transferred to remote control terminal after comparison judgement, and warning information is sent to
Alarm device realizes warning function.
Further, it is equipped with crown beam at the top of the enclosure wall, is equipped with waist rail in the middle part of the enclosure wall.
By using above-mentioned technical proposal, crown beam, waist rail are used to cooperate braced cuts wall, and foundation pit supporting construction is avoided to become
Shape, and safety monitoring can be carried out by the horizontal displacement and sedimentation of crown beam.
In conclusion the utility model has the following beneficial effects:
1, it by setting suspension device, is effectively prevented from because foundation pit enclosure wall displacement size is poor, leads to adjustable supporting
The case where supporting of device does not fasten appearance, and prevent foundation pit supporting construction from deforming；
2, by setting Reinforced Hoop, and certain compression displacement amount is reserved, insurance can be played the role of, support is avoided to tie
The structure catastrophic failure after bearing capacity that oversteps the extreme limit causes safety accident.
Detailed description of the invention
Fig. 1 is a kind of overall structure diagram of deep foundation pit support structure of the present embodiment；
Fig. 2 is the part-structure top view that crown beam, waist rail are removed in a kind of deep foundation pit support structure of the present embodiment；
Fig. 3 is a kind of part-structure explosive view of deep foundation pit support structure of the present embodiment.
In figure, 1, foundation pit；11, enclosure wall；12, bottom beam；13, crown beam；14, waist rail；2, suspension device；21, movable beam；
22, the first supporting beam；23, the second supporting beam；24, fixing seat；25, first bevel gear；26, second bevel gear；3, driving mechanism；
31, transmission shaft；32, servo motor；33, guide groove；34, limited post；4, Reinforced Hoop；41, clamping screw；42, pressure sensor；
43, alarm device.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
A kind of deep foundation pit support structure, the foundation pit big suitable for the small depth of area, as shown in Fig. 2, including being arranged in foundation pit 1
Enclosure wall 11 on side wall, the opposite two sides in 11 bottom of enclosure wall are provided with bottom beam 12 and the suspension device perpendicular to bottom beam 12
2, wherein enclosure wall 11 plays earth-retaining, sealing, the effect only become silted up, and bottom beam 12 is matched with suspension device 2, to avoid foundation pit branch
Protection structure deformation, with overcome geological conditions poor building foundation pit supporting engineering in safety is low, structural instability, cost are high
Problem.Referring particularly to Fig. 2 and Fig. 3, suspension device 2 includes movable beam 21, and opposite 11 side of enclosure wall of movable beam 21 is set
It is equipped with the first supporting beam 22, the first supporting beam 22 is rotatably connected to the second supporting beam 23, limits the first supporting beam 22 and second
It supports the coaxial arrangement of beam 23 and is threadedly coupled, to movable beam 21 can be driven along 12 side of bottom beam by rotating the second supporting beam 23
It is supported on enclosure wall 11 to displacement with abutting.And as shown in figure 3, being arranged on the enclosure wall 11 far from movable 21 side of beam
There is fixing seat 24, the driving mechanism 3 that setting can be such that the second supporting beam 23 rotates in fixing seat 24, therefore according to the tool of foundation pit 1
Body size and its earth pressure at rest etc. are effectively prevented from because foundation pit enclosure wall displacement size is poor, lead because usually controlling suspension device 2
The case where causing the supporting of adjustable suspension device not fasten appearance.
As shown in figure 3, driving mechanism 3 includes the transmission shaft 31 being rotatably arranged in fixing seat 24, transmission shaft 31 and second
Supporting beam 23 is perpendicular, and then first bevel gear 25 and second bevel gear is respectively set on transmission shaft 31 and the second supporting beam 23
26, and first bevel gear 25 and second bevel gear 26 are meshed connection.Using the kind of drive of bevel gear, cooperate the first supporting beam
22 and second supporting beam 23 helicitic texture, make it is whole while have self-lock ability, operate it is more convenient, be easy to
Implement, guarantees that foundation pit supporting construction will not deform.
As shown in figure 3, transmission shaft 31 is equipped with servo motor 32 far from bevel gear one end, when driving servo motor 32,
Rotate coaxially the holding of transmission shaft 31, first bevel gear 25 and 26 engaged transmission of second bevel gear are to ensure 23 turns of the second supporting beam
It is dynamic, drive the first supporting beam 22 to be displaced along 12 direction of bottom beam followed by screw thread, so that the abutting of movable beam 21 is supported on and encloses
On revetment 11, the bearing capacity of enclosure wall 11 is improved.
As shown in figure 3, two 12 opposite sides of bottom beam are provided with the guide groove 33 being arranged along its length, movable beam 21
Two sides are equipped with the limited post 34 being slidably connected with guide groove 33, and it is movable that limited post 34 is placed in guide groove 33, on the one hand play
The effect of limitation 22 radial displacement of the first supporting beam, on the other hand assists the first supporting beam 22 and second supporting beam 23 to pass through spiral shell
It is displaced when line rotates along 12 direction of bottom beam.
As shown in figure 3, the Reinforced Hoop 4 that restricted first supporting beam 22 is displaced is arranged in the second supporting beam 23, on Reinforced Hoop 4
It is provided with the clamping screw 41 fixed with the second supporting beam 23.Therefore, when movable beam 21 abutting is supported on enclosure wall 11
When, the end that Reinforced Hoop 4 is connected to the first supporting beam 22 can be rotated, and utilize clamping screw 41 by Reinforced Hoop 4 and second
Supporting beam 23 is fixed, so that the first supporting beam 22 of limitation loosens displacement under earth pressure at rest effect, it is further to provide
Safety guarantee ensures the stability of support construction.
As shown in figure 3, the compression displacement amount of 10-12cm is reserved between Reinforced Hoop 4 and the first supporting beam 22, because of supporting
Device 2 itself just has support effect good enough, so compared to the effect for directly further strengthening suspension device 2, not as good as pre-
Certain compression displacement amount is reserved, when the earth pressure at rest acted on enclosure wall 11 is excessive, can be generated by suspension device 2
Decrement in horizontal direction reduces the load acted on enclosure wall 11, at this point, Reinforced Hoop 4 is just to lay down overburden portion power
It can play the role of insurance, the support construction catastrophic failure after bearing capacity that oversteps the extreme limit is avoided to cause safety accident.
As shown in figures 1 and 3, Reinforced Hoop 4 is equipped with pressure sensor 42, and 42 communication link of pressure sensor is connected to setting and exists
Alarm device 43 outside foundation pit 1, so that the first supporting beam 22 is squeezed by long-time when abutting on Reinforced Hoop 4, pressure sensor
42 are able to detect that physical pressure information, then are transferred to remote control terminal after comparison judgement, and warning information is sent to police
Device 43 is reported, realizes warning function.
As shown in Figure 1, being equipped with crown beam 13 at the top of enclosure wall 11, waist rail 14 is equipped in the middle part of enclosure wall 11, wherein crown beam 13, waist
Beam 14 is used to cooperate braced cuts wall 11, and foundation pit supporting construction is avoided to deform, and can be by the horizontal displacement of crown beam 13 and heavy
Drop carries out safety monitoring.
The working principle of this deep foundation pit support structure: first on 1 side wall of foundation pit install enclosure wall 11 and be perfused bottom beam 12,
Then fixing seat 24 and entire suspension device is arranged in crown beam 13 and waist rail 14 on the enclosure wall 11 far from movable 21 side of beam
2, servo motor 32 is driven at this time, rotates coaxially the holding of transmission shaft 31, i.e., first bevel gear 25 and second bevel gear 26 engage
Transmission drives the first supporting beam 22 to be displaced along 12 direction of bottom beam to ensure that the second supporting beam 23 rotates, followed by screw thread, makes
It obtains the movable abutting of beam 21 to be supported on enclosure wall 11, then moves Reinforced Hoop 4 and be allowed to reserve 10- with the first supporting beam 22
The compression displacement amount of 12cm is finally fixed Reinforced Hoop 4 and the second supporting beam 23 using clamping screw 41.
This specific embodiment is only the explanation to the utility model, is 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 deep foundation pit support structure, it is characterised in that: described including the enclosure wall (11) being arranged on foundation pit (1) side wall
Enclosure wall (11) bottom two opposite sides are equipped with bottom beam (12), and enclosure wall (11) bottom is equipped with the supporting perpendicular to bottom beam (12)
Device (2), the suspension device (2) include movable beam (21), and the movable beam (21) sets with respect to enclosure wall (11) side
Have the first supporting beam (22), first supporting beam (22) is rotatably connected to the second supporting beam (23), first supporting beam
(22) it is coaxially disposed and is threadedly coupled with the second supporting beam (23), and on the enclosure wall (11) far from movable beam (21) side
Equipped with fixing seat (24), the fixing seat (24) is equipped with the driving mechanism (3) for driving the second supporting beam (23) to rotate.
2. a kind of deep foundation pit support structure according to claim 1, it is characterised in that: the driving mechanism (3) includes turning
The dynamic transmission shaft (31) being arranged on fixing seat (24), the transmission shaft (31) is perpendicular to the second supporting beam (23), the transmission
It is connect between axis (31) and the second supporting beam (23) by Bevel Gear Transmission.
3. a kind of deep foundation pit support structure according to claim 2, it is characterised in that: the transmission shaft (31) is far from cone tooth
It takes turns one end and is equipped with servo motor (32).
4. a kind of deep foundation pit support structure according to claim 3, it is characterised in that: two bottom beam (12) opposite sides
It is provided with the guide groove (33) being arranged along its length, movable beam (21) two sides, which are equipped with to slide with guide groove (33), to be connected
The limited post (34) connect.
5. a kind of deep foundation pit support structure according to claim 1, it is characterised in that: set on second supporting beam (23)
The Reinforced Hoop (4) of restricted first supporting beam (22) displacement, the Reinforced Hoop (4) are equipped with and the second supporting beam (23) fixation
Clamping screw (41).
6. a kind of deep foundation pit support structure according to claim 5, it is characterised in that: the Reinforced Hoop (4) and first
Support the compression displacement amount that 10-12cm is kept between beam (22).
7. a kind of deep foundation pit support structure according to claim 6, it is characterised in that: the Reinforced Hoop (4) is equipped with pressure
Force snesor (42), pressure sensor (42) communication link are connected to the alarm device (43) being arranged in foundation pit (1) outside.
8. a kind of deep foundation pit support structure according to any one of claims 1-7, it is characterised in that: the enclosure wall
(11) top is equipped with crown beam (13), is equipped with waist rail (14) in the middle part of the enclosure wall (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820954193.8U CN208379611U (en) | 2018-06-20 | 2018-06-20 | A kind of deep foundation pit support structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820954193.8U CN208379611U (en) | 2018-06-20 | 2018-06-20 | A kind of deep foundation pit support structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208379611U true CN208379611U (en) | 2019-01-15 |
Family
ID=64968197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820954193.8U Expired - Fee Related CN208379611U (en) | 2018-06-20 | 2018-06-20 | A kind of deep foundation pit support structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208379611U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114687357A (en) * | 2022-04-13 | 2022-07-01 | 上海建工集团股份有限公司 | Spiral regulating and controlling device for supporting axial force of deep foundation pit |
| CN114718084A (en) * | 2022-04-13 | 2022-07-08 | 上海建工集团股份有限公司 | Deep foundation pit supporting axial force spiral adjusting and controlling method |
-
2018
- 2018-06-20 CN CN201820954193.8U patent/CN208379611U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114687357A (en) * | 2022-04-13 | 2022-07-01 | 上海建工集团股份有限公司 | Spiral regulating and controlling device for supporting axial force of deep foundation pit |
| CN114718084A (en) * | 2022-04-13 | 2022-07-08 | 上海建工集团股份有限公司 | Deep foundation pit supporting axial force spiral adjusting and controlling method |
| CN114718084B (en) * | 2022-04-13 | 2023-08-22 | 上海建工集团股份有限公司 | Spiral regulation and control method for supporting axial force of deep foundation pit |
| CN114687357B (en) * | 2022-04-13 | 2023-08-22 | 上海建工集团股份有限公司 | Deep foundation pit supporting axial force spiral regulation and control device |
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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 |
Granted publication date: 20190115 Termination date: 20190620 |
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| CF01 | Termination of patent right due to non-payment of annual fee |