CN214423374U - Deep foundation pit supporting structure capable of preventing deformation - Google Patents
Deep foundation pit supporting structure capable of preventing deformation Download PDFInfo
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- CN214423374U CN214423374U CN202120590020.4U CN202120590020U CN214423374U CN 214423374 U CN214423374 U CN 214423374U CN 202120590020 U CN202120590020 U CN 202120590020U CN 214423374 U CN214423374 U CN 214423374U
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- foundation ditch
- foundation pit
- bottom plate
- deformation
- fender
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- 230000008093 supporting effect Effects 0.000 title claims abstract description 23
- 239000002689 soil Substances 0.000 claims abstract description 54
- 238000010276 construction Methods 0.000 claims abstract description 16
- 238000010030 laminating Methods 0.000 claims abstract description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 15
- 238000005728 strengthening Methods 0.000 claims description 14
- 230000007246 mechanism Effects 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 5
- 230000007547 defect Effects 0.000 abstract description 8
- 239000003673 groundwater Substances 0.000 description 13
- 239000012466 permeate Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
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- 230000008859 change Effects 0.000 description 2
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- 230000037431 insertion Effects 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
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- 238000000926 separation method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- OFCNXPDARWKPPY-UHFFFAOYSA-N allopurinol Chemical compound OC1=NC=NC2=C1C=NN2 OFCNXPDARWKPPY-UHFFFAOYSA-N 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
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- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
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- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model relates to a field of construction, a prevent deep basal pit supporting construction of deformation is disclosed, it includes a plurality of fender piles with the laminating of foundation ditch pit wall, set up the foundation ditch bottom plate on the foundation ditch diapire and be used for the fixed establishment of fender pile, one side that the fender pile deviates from the foundation ditch lateral wall is located to the foundation ditch bottom plate, fixed establishment includes the floorbar with the marginal fixed connection of foundation ditch bottom plate, the floorbar is buried underground in the soil body of foundation ditch below, the slot has been seted up on the floorbar top, the fender pile is followed vertical direction and slot grafting cooperation. The utility model provides a floorbar and foundation ditch bottom plate can reduce the sunken degree of fender pile in the soil body, have improved the easy defect that warp of back foundation ditch that fender pile sinks.
Description
Technical Field
The application relates to the field of building construction, in particular to a deep foundation pit supporting structure capable of preventing deformation.
Background
The foundation pit is a soil pit excavated at a foundation design position according to the base elevation and the base plane size, and is mainly used for bearing platforms, bridge abutments and foundation expansion construction, wherein the foundation pit with the excavation depth exceeding 5 m is called a deep foundation pit.
Chinese patent with publication number CN202194146U discloses a single pile foundation pit supporting structure, including single pile and the hat roof beam that sets up in single pile top, the laminating of single pile and the hole wall of foundation ditch to during vertical downward wears to establish the soil body of foundation ditch bottom, be equipped with vertical anchor rope in the single pile, in the work progress, single pile blocks the soil body around the foundation ditch hole wall, plays the supporting effect to the foundation ditch, and vertical anchor rope consolidates the foundation ditch slope.
In view of the above-mentioned related technologies, the inventor believes that, when the depth of the foundation pit is deep, the length of the single-row piles is long, so that the self weight of the single-row piles is large, the single-row piles easily sink in the soil body, and after the single-row piles sink, the soil body at the opening of the foundation pit loses the support, and sinks into the foundation pit, so that the defect that the foundation pit deforms exists.
SUMMERY OF THE UTILITY MODEL
In order to improve when the foundation ditch degree of depth is darker, the single row pile sinks in the soil body easily, leads to the defect of foundation ditch deformation, this application provides a deep basal pit supporting construction who prevents to warp.
The application provides a pair of prevent deep basal pit supporting construction of deformation adopts following technical scheme to reachd:
the utility model provides a prevent deep basal pit supporting construction of deformation, includes a plurality of fender piles with the laminating of foundation ditch pit wall, sets up the foundation ditch bottom plate on the foundation ditch diapire and is used for the fixed establishment of fender pile, one side that the fender pile deviates from the foundation ditch lateral wall is located to the foundation ditch bottom plate, fixed establishment includes the floorbar with the marginal fixed connection of foundation ditch bottom plate, the floorbar is buried underground in the soil body of foundation ditch below, the slot has been seted up on the floorbar top, the fender pile is followed vertical direction and slot grafting cooperation.
Through the technical scheme, during construction, a plurality of fender posts support the pit wall of the foundation pit jointly, simultaneously, the gravity that the fender posts receive is transmitted to the foundation pit bottom plate through the floorbar specially, the foundation pit bottom plate and the floorbar bear the fender posts jointly, the foundation pit bottom plate enlarges the area of soil body atress, the bearing capacity of the soil body to the fender posts is improved, thereby reducing the possibility that the fender posts sink in the soil body under the action of self gravity, and improving the defect that the foundation pit is easy to deform after the fender posts sink.
Preferably: a plurality of the common fixedly connected with in fender pile top crown beam, be equipped with the reinforcement subassembly on the crown beam, the reinforcement subassembly includes a plurality ofly deviates from one side fixed connection's of foundation ditch with the crown beam strengthening rib and keeps away from the dog of the one end fixed connection who crowns the beam with the strengthening rib, the strengthening rib all buries underground in the soil around the foundation ditch with the dog.
Through above-mentioned technical scheme, when the soil body pressurized around the foundation ditch, the strengthening rib plays the supporting role to the soil body to make fender pile take place the inclined possibility when having reduced the soil body pressurized deformation, the dog passes through the strengthening rib and plays the anchor effect to fender pile, has strengthened the combination degree of fender pile and soil body.
Preferably: the reinforcing assembly further comprises a plurality of blocking pieces, and each reinforcing rib is fixedly connected with the blocking pieces.
Through the technical scheme, when the fender pile deflects, the baffle plate increases the contact area of the reinforcing rib and the soil body, so that the traction force of the soil body to the reinforcing rib is improved, and the possibility of deflection of the fender pile is reduced.
Preferably: the stop block is fixedly connected with a marking rod, and the marking rod penetrates through a soil body upwards.
Through the technical scheme, during construction, the marking rod indicates the position of the fender post, and through comparing the change condition of the position of the recording rod, constructors can judge the degree of deflection of the fender post in the soil body, so that a foundation pit can be reinforced before an accident occurs, and the safety degree of construction operation is improved.
Preferably: and a cavity is formed in the fender post.
Through the technical scheme, after the cavity is formed in the guard post, the weight of the guard post is reduced, the possibility of sinking in a soil body is reduced, and the shell structure of the guard post can disperse pressure from the side wall of the foundation pit, so that the guard post still has strong bearing capacity. In addition, by arranging the cavity, raw materials required for producing the fender post are saved.
Preferably: the side of the fender pile facing the soil body is provided with an anti-seepage groove, the anti-seepage groove is communicated with the cavity, the fender pile is fixedly connected with a drain pipe, and the drain pipe is communicated with the cavity.
Through the technical scheme, when groundwater permeates from the soil body of the side wall of the foundation pit to the direction of the foundation pit, groundwater enters the cavity through the anti-seepage grooves, and then an operator can extract groundwater accumulated in the cavity through the drain pipe, so that the possibility that the groundwater permeates through the fender post is reduced, and the interference degree of the groundwater to the construction process is reduced.
Preferably: the fixing mechanism further comprises an inclined pull rod obliquely arranged below the foundation pit bottom plate, one end of the inclined pull rod is fixedly connected with the central part of the foundation pit bottom plate, and the other end of the inclined pull rod is fixedly connected with the bottom beam.
Through the technical scheme, the diagonal draw bars transmit the pressure applied to the bottom beam to the center of the foundation pit bottom plate, so that the foundation pit bottom plate is more uniformly stressed, and the possibility of warping of the foundation pit bottom plate due to the fact that only the side edge is stressed is reduced.
Preferably: the inner wall of the slot is bonded with a rubber cushion layer, and the fender post is abutted against the rubber cushion layer.
Through above-mentioned technical scheme, when constructor installs the fender pile in the slot of floorbar, the rubber cushion cushions the fender pile to reduce the possibility that the bottom of fender pile led to the fact the damage to the floorbar, prolonged the life of floorbar.
In summary, the present application includes at least one of the following beneficial technical effects:
1. during construction, the enclosure pile encloses the foundation pit, the bottom beam transmits the gravity of the enclosure pile to the foundation pit bottom plate, so that the pressure of the enclosure pile on the soil body is dispersed, the pressure intensity is reduced, the possibility that the enclosure pile sinks in the soil body is reduced, and the defect that the foundation pit deforms due to the fact that the enclosure pile sinks is overcome;
2. through the arrangement of the diagonal draw bars, a part of pressure borne by the bottom beam can be transferred to the center of the foundation pit bottom plate, so that the uniformity of stress of the foundation pit bottom plate is improved, and the possibility of warping of the foundation pit due to uneven stress is reduced.
Drawings
Fig. 1 is a schematic overall structure view of a deep foundation pit supporting structure for preventing deformation according to an embodiment of the present application.
Fig. 2 is a schematic structural diagram for showing a connection relationship between a bottom beam and a foundation pit bottom plate in the embodiment of the present application.
Fig. 3 is a schematic structural diagram for showing the positions of the diagonal members according to the embodiment of the present application.
Fig. 4 is an enlarged view of a portion a in fig. 1.
Fig. 5 is a schematic diagram for showing the position of the cavity according to the embodiment of the present application.
Reference numerals: 1. a foundation pit bottom plate; 2. a fixing mechanism; 21. a bottom beam; 22. a diagonal member; 3. a fender pile; 4. a slot; 41. a rubber cushion layer; 5. a crown beam; 6. a reinforcement assembly; 61. reinforcing ribs; 62. a baffle plate; 63. a stopper; 7. a marker post; 8. a cavity; 9. an anti-seepage groove; 10. and a water discharge pipe.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
The embodiment of the application discloses deep basal pit supporting construction who prevents to warp. Referring to fig. 1, the deep foundation pit supporting structure capable of preventing deformation comprises a foundation pit bottom plate 1, a fixing mechanism 2 and a plurality of fender posts 3, wherein the foundation pit bottom plate 1 is fixedly arranged at the bottom of a foundation pit, the fender posts 3 are arranged at the edge of the foundation pit bottom plate 1 in a surrounding mode, and the fender posts 3 are attached to the side wall of the foundation pit. When constructors construct in the foundation pit, the fender pile 3 encloses the foundation pit, the fixing mechanism 2 fixes the fender pile 3 on the foundation pit bottom plate 1, and the foundation pit bottom plate 1 supports the fender pile 3, so that the possibility that the fender pile 3 is settled in the soil body is reduced.
Referring to fig. 2 and 3, the fixing mechanism 2 includes four bottom beams 21 and four diagonal draw bars 22, and the four bottom beams 21 are respectively welded to four sides of the foundation pit bottom plate 1 and embedded in the soil at the bottom of the foundation pit. The four diagonal draw bars 22 are all obliquely arranged, the diagonal draw bars 22 correspond to the bottom beams 21 one by one, one ends of the diagonal draw bars 22 at higher positions are welded to the central part of the foundation pit bottom plate 1, and the other ends of the diagonal draw bars 22 are welded to the bottom beams 21.
Referring to fig. 1 and 2, the top end of the bottom beam 21 is provided with a slot 4 along the length direction, a plurality of fender piles 3 are all in insertion fit with the slot 4, and the side walls of two adjacent fender piles 3 are mutually attached; due to the adoption of the insertion matching mode, when the quality defect of the fender post 3 is found in the installation process, the fender post 3 can be replaced immediately, and the operation process is simple and convenient; rubber cushion layers 41 are bonded on the groove walls of the slots 4 to cushion the fender piles 3, so that the possibility that the bottom beam 21 is damaged by the impact of the fender piles 3 in the installation process is reduced, and the durability of the bottom beam 21 is improved. Two adjacent floorbeams 21 are equipped with the concrete cushion in crossing department, the both sides of concrete cushion all with be located the terminal fender pile 3 fixed connection of slot 4 to carry out the shutoff to the gap that is located two adjacent floorbeams 21 junctions top, with the possibility that the soil body falls into the foundation ditch from the gap department.
Referring to fig. 1 and 3, after the constructor completes the setting of the fender post 3, the bottom beam 21 supports the fender post 3, and the weight of the fender post 3 is shared by the bottom beam 21 and the foundation pit bottom plate 1 and acts on the soil body below the foundation pit bottom plate 1. The base plate 1 of the foundation pit increases the stressed area of the soil body, so that the pressure borne by the soil body is reduced, the possibility that the fender post 3 sinks in the soil body is reduced, and the defect that the foundation pit deforms due to the fact that the fender post 3 sinks is overcome. Meanwhile, the diagonal draw bars 22 transmit the pressure born by the bottom beams 21 to the central part of the foundation pit bottom plate 1, so that the stress of the foundation pit bottom plate 1 is more uniform, the possibility of warping of the foundation pit bottom plate 1 due to uneven stress is reduced, and the effect of protecting the foundation pit bottom plate 1 is achieved.
Referring to fig. 1 and 4, a plurality of fender piles 3 located on the same side of the foundation pit are fixedly connected with a crown beam 5 at the top end, a reinforcing assembly 6 is arranged on the crown beam 5, the reinforcing assembly 6 comprises a reinforcing rib 61, a baffle 62 and a stop block 63, and the reinforcing rib 61, the baffle 62 and the stop block 63 are all provided with a plurality of parts. A plurality of strengthening ribs 61 set up along the length direction equidistant of guan liang 5, and strengthening rib 61 and guan liang 5 deviate from one side fixed connection of foundation ditch, strengthening rib 61 wears to establish into the soil body around the foundation ditch along the direction level of perpendicular to guanliang 5, the part and the three separation blade 62 coaxial coupling of the soil body are worn to establish by strengthening rib 61, three separation blade 62 sets up along the axial interval of strengthening rib 61, the one end welded connection of guanliang 5 is kept away from with strengthening rib 61 to dog 63, and the welding of dog 63 top has gauge pole 7, gauge pole 7 upwards wears to establish subaerial along vertical direction.
Referring to fig. 1 and 4, during foundation pit construction, the crown beam 5 connects the plurality of fender posts 3 into a whole, so that the plurality of fender posts 3 can be used as a whole to enclose the foundation pit, and the reinforcing ribs 61 penetrate through soil around the foundation pit to support the soil, thereby reducing the deformation degree of the soil when the soil is pressed and reducing the possibility of deformation of the foundation pit caused by deformation of the soil. The stop block 63 plays an anchoring role in the soil body, the stop sheet 62 increases the contact area of the reinforcing rib 61 and the soil body, and the stop block 63 and the stop sheet 62 jointly improve the combination degree of the reinforcing rib 61 and the soil body, so that the possibility that the crown beam 5 and the fender post 3 are separated from the soil body is reduced, and the foundation pit is not easy to deform. In addition, through recording the position of the marking rod 7 and the change degree of the angle, constructors can know the deviation degree of the soil body around the foundation pit, so that the pit wall of the foundation pit is reinforced according to the deviation condition of the soil body, the possibility of collapse accidents is reduced, and the safety degree of construction operation is improved.
Referring to fig. 1 and 5, a cavity 8 is formed in the fender pile 3, an anti-seepage groove 9 is formed in the cavity wall of one side, away from the foundation pit, of the cavity 8, a drain pipe 10 is fixedly connected to the fender pile 3, one end of the drain pipe 10 penetrates through the cavity 8 and extends into the cavity 8 and is far away from one end of the crown beam 5. When groundwater leaks towards the direction of the foundation pit, the fender post 3 blocks the groundwater, and the groundwater enters the cavity 8 through the anti-seepage groove 9. Then, the operator communicates the water pumping device with the water discharge pipe 10 to pump water into the cavity 8, thereby reducing the possibility of interference to the construction after the groundwater permeates through the fender pile. In addition, through the setting of cavity 8, the dead weight of fender pile 3 alleviates to reduced fender pile 3 degree of sinking in the soil body, further reduced the foundation ditch because of the fender pile 3 possibility of taking place the deformation that sinks.
The implementation principle of the deep foundation pit supporting structure for preventing deformation in the embodiment of the application is as follows: when the fender pile 3 is used for supporting the foundation pit, the bottom beam 21 bears the fender pile 3 and supports the bottom beam 21 together with the foundation pit bottom plate 1, so that the pressure of the fender pile 3 on the soil body is dispersed, the pressure born by the soil body is reduced, the possibility of sinking of the fender pile 3 is reduced, and the defect of deformation of the foundation pit caused by sinking of the fender pile 3 is overcome. When the fender pile 3 is about to deflect, the retaining blocks 63 and the blocking pieces 62 buried in the soil body together hold the crown beam 5 and the fender pile 3 through the reinforcing ribs 61, so that the possibility that the fender pile 3 collapses due to deflection is reduced. When groundwater permeates to the direction at foundation ditch place, fender pile 3 blocks rivers to in collecting cavity 8 with groundwater through prevention of seepage groove 9, constructor can extract the groundwater in cavity 8 with pumping equipment and drain pipe 10 intercommunication, thereby has reduced the groundwater and has permeated the possibility that causes the foundation ditch to warp behind fender pile 3.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (8)
1. The utility model provides a prevent deep basal pit supporting construction of deformation which characterized in that: include a plurality of fender post (3) with the laminating of foundation ditch pit wall, set up foundation ditch bottom plate (1) on the foundation ditch diapire and be used for fixed fender post (3) fixed establishment (2), one side that fender post (3) deviate from the foundation ditch lateral wall is located in foundation ditch bottom plate (1), fixed establishment (2) include with foundation ditch bottom plate (1) marginal fixed connection's floorbar (21), floorbar (21) are buried underground in the soil body of foundation ditch below, slot (4) have been seted up on floorbar (21) top, fender post (3) are followed vertical direction and are pegged graft the cooperation with slot (4).
2. The deformation-preventing deep foundation pit supporting structure according to claim 1, wherein: a plurality of the common fixedly connected with in fender post (3) top crown beam (5), be equipped with on crown beam (5) and strengthen subassembly (6), strengthen subassembly (6) including a plurality ofly with crown beam (5) deviate from one side fixed connection's of foundation ditch strengthening rib (61) and keep away from one end fixed connection's of crown beam (5) dog (63) with strengthening rib (61), strengthening rib (61) and dog (63) are all buried underground in the soil body around the foundation ditch.
3. The deformation-preventing deep foundation pit supporting structure according to claim 2, wherein: the reinforcing assembly (6) further comprises a plurality of blocking pieces (62), and each reinforcing rib (61) is fixedly connected with the blocking pieces (62).
4. The deformation-preventing deep foundation pit supporting structure according to claim 3, wherein: the stop block (63) is fixedly connected with a marking rod (7), and the marking rod (7) penetrates through the soil body upwards.
5. The deformation-preventing deep foundation pit supporting structure according to claim 1, wherein: and a cavity (8) is formed in the fender post (3).
6. The deformation-preventing deep foundation pit supporting structure according to claim 5, wherein: one side of the fender post (3) facing the soil body is provided with an anti-seepage groove (9), the anti-seepage groove (9) is communicated with the cavity (8), the fender post (3) is fixedly connected with a drain pipe (10), and the drain pipe (10) is communicated with the cavity (8).
7. The deformation-preventing deep foundation pit supporting structure according to claim 1, wherein: the fixing mechanism (2) further comprises an inclined pull rod (22) obliquely arranged below the foundation pit bottom plate (1), one end of the inclined pull rod (22) is fixedly connected with the central part of the foundation pit bottom plate (1), and the other end of the inclined pull rod is fixedly connected with the bottom beam (21).
8. The deformation-preventing deep foundation pit supporting structure according to claim 1, wherein: a rubber cushion layer (41) is bonded on the inner wall of the slot (4), and the fender post (3) is abutted against the rubber cushion layer (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120590020.4U CN214423374U (en) | 2021-03-25 | 2021-03-25 | Deep foundation pit supporting structure capable of preventing deformation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120590020.4U CN214423374U (en) | 2021-03-25 | 2021-03-25 | Deep foundation pit supporting structure capable of preventing deformation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214423374U true CN214423374U (en) | 2021-10-19 |
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ID=78074647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120590020.4U Expired - Fee Related CN214423374U (en) | 2021-03-25 | 2021-03-25 | Deep foundation pit supporting structure capable of preventing deformation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214423374U (en) |
-
2021
- 2021-03-25 CN CN202120590020.4U patent/CN214423374U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| 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: 20211019 |