CN220847610U - Foundation pit protection device - Google Patents
Foundation pit protection device Download PDFInfo
- Publication number
- CN220847610U CN220847610U CN202322507459.8U CN202322507459U CN220847610U CN 220847610 U CN220847610 U CN 220847610U CN 202322507459 U CN202322507459 U CN 202322507459U CN 220847610 U CN220847610 U CN 220847610U
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- prefabricated
- connecting plate
- retaining wall
- foundation pit
- wall structure
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- 230000008093 supporting effect Effects 0.000 claims description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 230000001012 protector Effects 0.000 claims description 3
- 238000009435 building construction Methods 0.000 abstract description 2
- 239000004567 concrete Substances 0.000 description 18
- 239000004570 mortar (masonry) Substances 0.000 description 11
- 238000010276 construction Methods 0.000 description 10
- 210000001503 joint Anatomy 0.000 description 6
- 238000007569 slipcasting Methods 0.000 description 6
- 230000002349 favourable effect Effects 0.000 description 4
- 239000011150 reinforced concrete Substances 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000004035 construction material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000004566 building material Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The utility model discloses a foundation pit protection device, and belongs to the technical field of building construction. Including retaining wall structure, prefabricated connecting plate, attach fitting and support piece, retaining wall structure sets up around the foundation ditch, and the prefabricated connecting plate is fixed in retaining wall structure upper end and towards the side of foundation ditch, and the attach fitting cover is established in the prefabricated connecting plate outside, attach fitting and prefabricated connecting plate fixed connection. According to the utility model, the rigid connection of the support piece and the water-retaining wall can be completed without perforating the water-retaining wall structure, and the support piece is connected with the water-retaining wall structure which is abutted or adjacent to the bottom of the foundation pit, so that the horizontal load capacity of the water-retaining wall structure can be improved, and the stability of the structure around the foundation pit is ensured.
Description
Technical Field
The utility model relates to a foundation pit protection device, and belongs to the technical field of building construction.
Background
The concrete retaining wall is formed by pouring concrete around the foundation pit before the conventional foundation pit is excavated so as to ensure the protection of the foundation pit, but the conventional concrete retaining wall cannot meet the protection strength along with the increasing depth of the foundation pit, and the precast reinforced concrete pile is used for protection at the moment, but the conventional concrete pile is also required to be perforated on the pile and is provided with an auxiliary supporting piece when being supported, and the pile is subjected to certain structural damage when being perforated and installed, so that the effectiveness of the protection of the foundation pit is influenced, and certain potential safety hazards exist.
Disclosure of utility model
The technical problems to be solved by the utility model are as follows: the utility model provides a foundation ditch protector, it has solved among the prior art conventional concrete sheet pile still need punch and install auxiliary stay piece on the sheet pile when strutting, can cause certain structural failure to the sheet pile when punching the installation to influence foundation ditch protection effectiveness's problem.
The technical problems to be solved by the utility model are realized by adopting the following technical scheme: the utility model provides a foundation ditch protector, including retaining wall structure, prefabricated connecting plate, attach fitting and support piece, retaining wall structure sets up around the foundation ditch, and prefabricated connecting plate is fixed in retaining wall structure upper end and towards the side of foundation ditch, and the attach fitting cover is established in prefabricated connecting plate outside, attach fitting and prefabricated connecting plate fixed connection, support piece fixed mounting is in the one end of attach fitting towards the foundation ditch, support piece be used for with foundation ditch bottom or adjacent side retaining wall structural connection.
Through adopting above-mentioned technical scheme, because prefabricated connecting plate prefabricates on the retaining wall structure, when making retaining wall structure need use support piece to support, do not carry out the trompil to retaining wall structure and can accomplish support piece and retaining wall's rigid connection, support piece is through the retaining wall structural connection with foundation ditch bottom butt or adjacent, can improve retaining wall structure's horizontal load ability, be favorable to guaranteeing foundation ditch all around, still can demolish after support piece finishes using, prefabricated connecting plate and attach fitting can be integrally formed at this moment and use as floor and retaining wall structure's connection structure in reinforced concrete, avoided demolising the attach fitting once more, construction material's waste has also been reduced when having improved efficiency of construction.
The utility model is further provided with: the retaining wall structure comprises prefabricated sheet piles, male heads and female heads, the male heads and the female heads are respectively arranged on opposite sides of the prefabricated sheet piles, the prefabricated sheet piles are provided with a plurality of prefabricated sheet piles, the prefabricated sheet piles are arranged side by side along the periphery of a foundation pit, and adjacent prefabricated sheet piles are connected through male heads and female head mortise and tenon joints.
Through adopting above-mentioned technical scheme, through in inserting the public head of prefabricated sheet pile in the female head of adjacent prefabricated sheet pile, public head and female head form joint structure this moment, two prefabricated sheet piles can't move towards horizontal opposite direction this moment to stability and precision after the installation of prefabricated sheet pile have been improved.
The utility model is further provided with: the vertical both sides face of prefabricated connecting plate is fixed to be provided with a plurality of spacing arch, exists the space and forms the water conservancy diversion passageway between the adjacent spacing arch, and the guiding gutter has been vertically seted up to the one end that prefabricated sheet pile was kept away from to the prefabricated connecting plate, and the junction of attach fitting and prefabricated connecting plate forms and waits to pour the space.
Through adopting above-mentioned technical scheme, when setting up spacing arch on the prefabricated connecting plate, establish after the connecting joint cover on the prefabricated connecting plate, leave the space formation between connecting joint and the prefabricated connecting plate under spacing bellied supporting action and wait to pour the space for to waiting to pour concrete mortar in the space after the connecting joint installation, the mortar can flow in waiting to pour the space through guiding gutter and water conservancy diversion passageway respectively, can be as an organic whole with connecting joint and prefabricated connecting plate fixed connection after waiting that the mortar solidifies, the connecting joint can't break away from the connection with the prefabricated connecting plate this moment, compare in traditional prefabricated component's joint structure, this kind of connected mode has improved the joint strength of connecting joint and prefabricated connecting plate.
The utility model is further provided with: the inside wall of the connecting joint is provided with a plurality of connecting grooves extending along the arrangement direction of the prefabricated sheet piles.
Through adopting above-mentioned technical scheme, offer the spread groove in the attach fitting inboard, make concrete mortar pour and solidify the back, in the mortar that solidifies can imbed the attach fitting, be favorable to further restricting the attach fitting and break away from prefabricated connecting plate.
The utility model is further provided with: the joint department of public head and female head is vertical to be offered respectively with public head and female head vertically throughout's slip casting passageway in the prefabricated sheet pile, has seted up the auxiliary grouting passageway with slip casting passageway intercommunication in the prefabricated connecting plate, and the one end opening that auxiliary grouting passageway kept away from the slip casting passageway is offered in the downside of prefabricated connecting plate.
Through adopting above-mentioned technical scheme, use concrete slurry to pour the in-process of caulking after making precast sheet pile connect with slip casting passageway and supplementary slip casting passageway intercommunication, concrete slurry can flow into through supplementary slip casting passageway and wait to pour the space and pack to wait to pour the space in, thereby reach once fill can be with precast sheet pile and attach fitting completely fixed purpose, improved the efficiency of construction.
The utility model is further provided with: the support piece comprises an inclined support rod or a supporting rod, a mounting hole is formed in one end, facing the foundation pit, of the connecting joint, one end of the inclined support rod is fixedly connected with the mounting hole, the other end of the inclined support rod is fixedly connected with the bottom of the foundation pit, one end of the supporting rod is fixedly connected with the mounting hole, and the other end of the supporting rod horizontally extends.
Through adopting above-mentioned technical scheme, use the diagonal brace with attach fitting and foundation ditch bottom fixed connection, this moment because attach fitting passes through prefabricated connecting plate and concrete placement fixed connection with prefabricated sheet pile, when prefabricated sheet pile receives the pressure of soil layer to the foundation ditch direction, the diagonal brace provides the diagonal bracing for prefabricated sheet pile and with partial pressure conduction to the foundation ditch bottom, be fit for in the construction environment that foundation ditch bottom was pour the completion this moment, when the foundation ditch bottom was not pour, because the foundation ditch bottom can't support, through fixing the butt pole in the mounting hole, make the butt pole of installing on the adjacent prefabricated sheet pile pass through channel-section steel or support column bolt fixed connection, the adjacent prefabricated sheet pile can support each other when receiving the pressure of soil layer to the foundation ditch this moment, the stability of prefabricated sheet pile has been improved.
The beneficial effects of the utility model are as follows: because prefabricated connecting plate prefabricates on the retaining wall structure, when making retaining wall structure need use support piece to support, do not carry out the trompil to retaining wall structure and can accomplish the rigid connection of support piece and retaining wall, support piece is through the retaining wall structural connection with foundation ditch bottom butt or adjacent, can improve retaining wall structure's horizontal load ability, be favorable to guaranteeing foundation ditch all around stable in structure, still can demolish after support piece finishes using, prefabricated connecting plate and attach fitting can pour this moment in reinforced concrete as floor and retaining wall structure's connection structure uses once more, avoided demolishing attach fitting, construction material's waste has also been reduced when having improved efficiency of construction.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the structure of the present utility model when the diagonal brace is installed;
FIG. 3 is a schematic view of the structure of the utility model when the abutting rod is installed;
FIG. 4 is a cross-sectional view of the construction of the positions of the grouting channels and auxiliary grouting channels according to the present utility model;
FIG. 5 is a schematic view of a connecting joint according to the present utility model;
fig. 6 is a schematic structural view of a prefabricated connection board according to the present utility model.
In the figure: 10. prefabricating sheet piles; 11. a male; 12. a female head; 13. grouting channels; 14. a space to be poured; 15. prefabricating a connecting plate; 16. a limit protrusion; 17. a diversion trench; 18. a diversion channel; 20. a connection joint; 21. a mounting hole; 22. a diagonal brace; 23. a butt joint rod; 24. a filling layer; 25. a connecting groove; 26. and an auxiliary grouting channel.
Detailed Description
The utility model will be further described with reference to the following detailed drawings, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.
As shown in fig. 1-6, a foundation pit protection device comprises a water-retaining wall structure, a prefabricated connecting plate 15, a connecting joint 20 and a supporting piece, wherein the water-retaining wall structure is arranged around a foundation pit, the prefabricated connecting plate 15 is fixed at the upper end of the water-retaining wall structure and faces the side face of the foundation pit, the connecting joint 20 is sleeved outside the prefabricated connecting plate 15, the bottom of the connecting joint 20 is tightly abutted to the surface of the water-retaining wall structure, the connecting joint 20 is fixedly connected with the prefabricated connecting plate 15, the supporting piece is fixedly installed at one end of the connecting joint 20 facing the foundation pit, and the supporting piece is used for being connected with the bottom of the foundation pit or the adjacent side water-retaining wall structure.
The water wall structure includes prefabricated sheet pile 10, public head 11 and female head 12, and public head 11 and female head 12 set up respectively in the opposite side of prefabricated sheet pile 10, and prefabricated sheet pile 10 is provided with a plurality of, and prefabricated reinforcing bar that extends to prefabricated sheet pile 10 outside is used for connecting the floor can be prefabricated to prefabricated sheet pile 10's upper end. The prefabricated sheet piles 10 are arranged in a side-by-side butt joint mode along the periphery of the foundation pit, and the adjacent prefabricated sheet piles 10 are in mortise and tenon joint through the male head 11 and the female head 12. The joint of the male head 11 and the female head 12 in the adjacent prefabricated sheet pile 10 is vertically provided with a grouting channel 13 which vertically penetrates the male head 11 and the female head 12 respectively, an auxiliary grouting channel 26 communicated with the grouting channel 13 is arranged in the prefabricated connecting plate 15, and one end opening of the auxiliary grouting channel 26 far away from the grouting channel 13 is arranged on the lower side surface of the prefabricated connecting plate 15.
As shown in fig. 1 and 6, a plurality of spacing protrusions 16 are fixedly arranged on two vertical side surfaces of a prefabricated connecting plate 15, the spacing protrusions 16 are arranged in a rectangular array, gaps exist between adjacent spacing protrusions 16, a diversion channel 18 is formed, a diversion trench 17 is vertically formed at one end, far away from a prefabricated sheet pile 10, of the prefabricated connecting plate 15, and a to-be-poured space 14 is formed at the joint of a connecting joint 20 and the prefabricated connecting plate 15. After casting the concrete mortar, a filling layer 24 is formed in the space 14 to be cast, and the filling layer 24 is used for fixing the connection joint 20 and the prefabricated connection plate 15. The inner side wall of the connection joint 20 is provided with a plurality of connection grooves 25 extending in the arrangement direction of the precast sheet piles 10. The openings of several flow channels 18 extending along the foundation pit in the direction of the precast sheet pile 10 are aligned with the openings of the connecting channels 25.
As shown in fig. 2 and 3, the supporting member includes an inclined supporting rod 22 or a supporting rod 23, a mounting hole 21 is provided at one end of the connecting joint 20 facing the foundation pit, one end of the inclined supporting rod 22 is fixedly connected with the mounting hole 21, the other end of the inclined supporting rod 22 is fixedly connected with the bottom of the foundation pit, one end of the supporting rod 23 is fixedly connected with the mounting hole 21, and the other end of the supporting rod 23 extends horizontally. When it is desired to cast a building floor slab on the precast slab pile 10, the abutting rod 23 can be directly cast in the floor slab, and at this time, the precast connection plate 15, the connection joint 20 and the abutting rod 23 form a connection structure of the floor slab and the precast slab pile 10.
Because prefabricated connecting plate 15 prefabricates on prefabricated sheet pile 10, when making the retaining wall structure need use support piece to support, do not carry out the trompil to the retaining wall structure and can accomplish support piece and retaining wall's rigid connection, support piece is through being connected with retaining wall structure of foundation ditch bottom butt or adjacent, can improve retaining wall structure's horizontal load ability, be favorable to guaranteeing foundation ditch all around stable in structure, still can demolish after support piece finishes using, prefabricated connecting plate 15 and attach fitting 20 can pour as floor and retaining wall structure's connection structure uses in reinforced concrete this moment in one-piece, avoided demolishing again to attach fitting 20, the waste of building material has also been reduced when having improved the efficiency of construction.
Through inserting the public head 11 of precast sheet pile 10 in the female head 12 of adjacent precast sheet pile 10, public head 11 and female head 12 form joint structure this moment, and two precast sheet piles 10 can not move towards horizontal opposite direction this moment to stability and the precision after precast sheet pile 10 installs have been improved.
When setting up spacing arch 16 on the prefabricated connecting plate 15, after the attach fitting 20 cover is established on prefabricated connecting plate 15, leave the space formation and wait to pour space 14 between attach fitting 20 and the prefabricated connecting plate 15 under the supporting action of spacing arch 16 for to wait to pour concrete mortar in space 14 after attach fitting 20 installs, the mortar can flow in waiting to pour space 14 through guiding gutter 17 and water conservancy diversion passageway 18 respectively, can be with attach fitting 20 and prefabricated connecting plate 15 fixed connection as an organic whole and form filling layer 24 after waiting that the mortar solidifies, attach fitting 20 can not break away from the connection with prefabricated connecting plate 15 this moment, compare in traditional prefabricated component's joint structure, this kind of connected mode has improved the joint strength of attach fitting 20 and prefabricated connecting plate 15. The connecting groove 25 is formed on the inner side of the connecting joint 20, so that after the concrete mortar is poured and solidified, the solidified mortar can be embedded into the connecting joint 20, thereby being beneficial to further limiting the connecting joint 20 from being separated from the prefabricated connecting plate 15.
In the process of pouring and caulking by using concrete slurry after connecting the precast sheet piles 10 by communicating the grouting channels 13 and the auxiliary grouting channels 26, the concrete slurry can flow into the space 14 to be poured through the auxiliary grouting channels 26 to fill the space 14 to be poured, so that the purpose of completely fixing the precast sheet piles 10 and the connecting joints 20 by one-time filling is achieved, and the construction efficiency is improved.
The diagonal brace 22 is used for fixedly connecting the connecting joint 20 with the bottom of the foundation pit, at this moment, because the connecting joint 20 and the prefabricated sheet pile 10 are fixedly connected through the prefabricated connecting plate 15 and concrete pouring, when the prefabricated sheet pile 10 is subjected to the pressure of the soil layer to the direction of the foundation pit, the diagonal brace 22 provides diagonal support for the prefabricated sheet pile 10 and conducts partial pressure to the bottom of the foundation pit, at this moment, the diagonal brace 22 is suitable for the construction environment in which the bottom of the foundation pit is poured, when the bottom of the foundation pit is not poured, the bottom of the foundation pit cannot be supported, the abutting rods 23 installed on the adjacent prefabricated sheet piles 10 are fixedly connected through channel steel or supporting column bolts, and at this moment, the adjacent prefabricated sheet piles 10 can mutually support when being subjected to the pressure of the soil layer to the foundation pit, so that the stability of the prefabricated sheet pile 10 is improved.
The prefabricated sheet piles 10 are inserted into the periphery of a foundation pit to be excavated through a conventional TRD construction method to form a stable water retaining wall structure, at the moment, the prefabricated connecting plates 15 face one side of the foundation pit to be excavated, the connecting joints 20 are sleeved on the prefabricated connecting plates 15 before concrete is poured into the grouting channels 13 of the spliced prefabricated sheet piles 10, then concrete pouring is carried out through the grouting channels 13, the connecting joints 20 and the prefabricated connecting plates 15 are fixed and adjacent prefabricated sheet piles 10 are fixed through the processes, then appropriate supporting pieces are selected according to the actual foundation pit depth when the foundation pit is excavated, if the foundation pit depth is deeper, the mode that the diagonal bracing rods 22 and the supporting rods 23 are used in a mixed mode can be selected, namely, the supporting rods 23 are used on the prefabricated sheet piles 10 on the adjacent edges of the foundation pit, the diagonal bracing rods 22 are used for supporting the prefabricated sheet piles 10 on the middle parts of the edges of the foundation pit, the prefabricated sheet piles 10 on the adjacent edges are used for effective supporting, then the diagonal bracing rods 22 are used for supporting the prefabricated sheet piles 10 on the adjacent edges after the foundation pit is excavated to the maximum extent, and the diagonal bracing rods 22 are used for further supporting, and then the prefabricated sheet piles 10 are used for supporting and floor construction.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, but is capable of various changes and modifications without departing from the spirit and scope of the utility model. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a foundation ditch protector which characterized in that: including retaining wall structure, prefabricated connecting plate (15), attach fitting (20) and support piece, retaining wall structure sets up around the foundation ditch, and prefabricated connecting plate (15) are fixed in retaining wall structure upper end and towards the side of foundation ditch, and attach fitting (20) cover is established in prefabricated connecting plate (15) outside, and attach fitting (20) and prefabricated connecting plate (15) fixed connection, support piece fixed mounting are in the one end of attach fitting (20) towards the foundation ditch, and support piece is used for being connected with foundation ditch bottom or adjacent side retaining wall structure.
2. The foundation pit protection device of claim 1, wherein: the water retaining wall structure comprises prefabricated sheet piles (10), male heads (11) and female heads (12), wherein the male heads (11) and the female heads (12) are respectively arranged on opposite sides of the prefabricated sheet piles (10), the prefabricated sheet piles (10) are provided with a plurality of prefabricated sheet piles (10), the prefabricated sheet piles (10) are arranged side by side along the periphery of a foundation pit, and the adjacent prefabricated sheet piles (10) are connected in a mortise-tenon mode through the male heads (11) and the female heads (12).
3. The foundation pit protection device of claim 1, wherein: a plurality of limit protrusions (16) are fixedly arranged on two vertical side surfaces of the prefabricated connecting plate (15), gaps exist between adjacent limit protrusions (16) and form a diversion channel (18), a diversion groove (17) is vertically formed in one end, far away from the prefabricated sheet pile (10), of the prefabricated connecting plate (15), and a to-be-poured space (14) is formed at the joint of the connecting joint (20) and the prefabricated connecting plate (15).
4. The foundation pit protection device of claim 1, wherein: the inner side wall of the connecting joint (20) is provided with a plurality of connecting grooves (25) extending along the arrangement direction of the prefabricated sheet piles (10).
5. A foundation pit protection device according to claim 2, wherein: the joint department of public head (11) and female head (12) in adjacent prefabricated sheet pile (10) is vertical to be offered grouting channel (13) with public head (11) and female head (12) vertical run through respectively, has offered auxiliary grouting channel (26) with grouting channel (13) intercommunication in prefabricated connecting plate (15), and auxiliary grouting channel (26) are kept away from the one end opening of grouting channel (13) and are offered in the downside of prefabricated connecting plate (15).
6. The foundation pit protection device of claim 1, wherein: the support piece comprises an inclined support rod (22) or a supporting rod (23), a mounting hole (21) is formed in one end, facing the foundation pit, of the connecting joint (20), one end of the inclined support rod (22) is fixedly connected with the mounting hole (21), the other end of the inclined support rod (22) is fixedly connected with the bottom of the foundation pit, one end of the supporting rod (23) is fixedly connected with the mounting hole (21), and the other end of the supporting rod (23) horizontally extends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322507459.8U CN220847610U (en) | 2023-09-14 | 2023-09-14 | Foundation pit protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322507459.8U CN220847610U (en) | 2023-09-14 | 2023-09-14 | Foundation pit protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220847610U true CN220847610U (en) | 2024-04-26 |
Family
ID=90743166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322507459.8U Active CN220847610U (en) | 2023-09-14 | 2023-09-14 | Foundation pit protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220847610U (en) |
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2023
- 2023-09-14 CN CN202322507459.8U patent/CN220847610U/en active Active
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