CN212688974U - Deep foundation pit supporting structure - Google Patents
Deep foundation pit supporting structure Download PDFInfo
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- CN212688974U CN212688974U CN202021279701.0U CN202021279701U CN212688974U CN 212688974 U CN212688974 U CN 212688974U CN 202021279701 U CN202021279701 U CN 202021279701U CN 212688974 U CN212688974 U CN 212688974U
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- foundation pit
- fixedly connected
- mounting
- pouring pipe
- concrete
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- 230000003014 reinforcing effect Effects 0.000 claims abstract description 25
- 239000002689 soil Substances 0.000 claims description 26
- 229910000831 Steel Inorganic materials 0.000 claims description 21
- 239000010959 steel Substances 0.000 claims description 21
- 238000010276 construction Methods 0.000 claims description 16
- 230000001681 protective effect Effects 0.000 claims description 2
- 101150054854 POU1F1 gene Proteins 0.000 description 15
- 238000009412 basement excavation Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000005728 strengthening Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model relates to a deep foundation pit supporting structure, which comprises a side slope, a side slope supporting structure fixedly arranged on the side slope, a connecting row column and a waterproof curtain which are sequentially arranged in the foundation pit from outside to inside; the connecting row columns are composed of a plurality of connecting columns, and connecting pieces are fixedly arranged between adjacent connecting columns; the waterproof curtain is composed of a plurality of fixed seamless-connected concrete columns, and a plurality of mounting holes are transversely formed in the waterproof curtain; the mounting holes penetrate through the waterproof curtain and the connecting column and are communicated to the slope supporting structure, and a pouring pipe is arranged in each mounting hole; one end of the pouring pipe penetrates through the mounting hole to be fixedly connected with the side slope supporting structure, a reinforcing column formed by concrete pouring is arranged inside the pouring pipe, and a supporting assembly is fixedly arranged at the other end of the pouring pipe; one end of the supporting component is fixedly connected with the pouring pipe, and the other end of the supporting component is fixedly connected with the bottom of the foundation pit and used for supporting the pouring pipe.
Description
Technical Field
The utility model relates to a deep basal pit supporting construction belongs to the excavation supporting field.
Background
The foundation pit is a soil pit excavated at the design position of the foundation according to the elevation of the foundation and the plane size of the foundation, and an excavation scheme is determined according to geological and hydrological data and the conditions of buildings nearby the site before excavation, and waterproof and drainage work is performed. The person who is not excavated can use the method of putting the side slope to stabilize the earth slope, and the size of the slope is determined according to the relevant construction regulations. The foundation pit support is a retaining, reinforcing and protecting measure adopted for the side wall of the foundation pit and the surrounding environment in order to ensure the safety of the construction of an underground structure and the surrounding environment of the foundation pit.
If more sand form earth of current excavation supporting construction can adopt connecting network and connecting reinforcement, fix foundation ditch wall earth. But the fixed ratio of individual layer connecting network and connection steel bar structure is thin, and current foundation ditch supporting construction transverse connection power is not enough, and the shear column vertically supports in the foundation ditch, and horizontal steadiness is not good.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the prior art, the utility model provides a deep foundation pit supporting structure, which strengthens the fixation of the side slope by arranging a plurality of layers of connecting nets, reinforcing meshes, soil nails and a plurality of layers of concrete; the transverse connection force between the foundation pit supporting structures is strengthened by arranging the strengthening columns and the supporting components.
The technical scheme of the utility model as follows:
a deep foundation pit supporting structure comprises a side slope, a side slope supporting structure fixedly arranged on the side slope, and a connecting row column and a waterproof curtain which are sequentially arranged in a foundation pit from outside to inside;
the connecting row columns are composed of a plurality of connecting columns, and connecting pieces are fixedly arranged between adjacent connecting columns; the waterproof curtain is composed of a plurality of fixed seamless-connected concrete columns, and a plurality of mounting holes are transversely formed in the waterproof curtain; the mounting holes penetrate through the waterproof curtain and the connecting column and are communicated to the slope supporting structure, and a pouring pipe is arranged in each mounting hole; one end of the pouring pipe penetrates through the mounting hole to be fixedly connected with the side slope supporting structure, a reinforcing column formed by concrete pouring is arranged inside the pouring pipe, and a supporting assembly is fixedly arranged at the other end of the pouring pipe; one end of the supporting component is fixedly connected with the pouring pipe, and the other end of the supporting component is fixedly connected with the bottom of the foundation pit and used for supporting the pouring pipe.
Further, the support assembly comprises a mounting block, a diagonal brace, a stub and a mounting base; the mounting block is fixedly connected to the other end of the pouring pipe and fixedly connected with the waterproof curtain, one end of the inclined strut is fixedly connected with the mounting block, the other end of the inclined strut is fixedly connected to the short pile, and the short pile is fixedly connected to the foundation pit through the mounting base.
Further, the side slope supporting structure comprises a first connecting net, a second connecting net, a reinforcing mesh, soil nails, a first concrete layer, backfill soil, a second concrete layer and a protective plate;
the first connecting net, the second connecting net and the reinforcing mesh are sequentially arranged on the side wall of the side slope from inside to outside of the foundation pit and are fixed through soil nails; a first concrete layer is arranged on one side, close to the foundation pit, of the reinforcing mesh; the backfill is arranged on one side of the first concrete layer close to the foundation pit, and a second concrete layer is arranged on one side of the backfill close to the foundation pit; the guard plate is arranged on one side, close to the foundation pit, of the second concrete layer and used for covering concrete.
Further, the connector comprises a first mounting steel and a second mounting steel; the first installation steel and the second installation steel are arranged between two adjacent connecting columns in a crossed mode and are fixedly connected.
Furthermore, the inside strengthening rib that is provided with of concrete column of waterproof curtain, and the surface is provided with the waterproof layer.
The utility model discloses following beneficial effect has:
1. the utility model discloses a strengthening post and supporting component have strengthened the transverse connection between the excavation supporting construction, improve the security of foundation ditch construction building.
2. The utility model discloses well side slope supporting construction can effectively reduce the unstable condition of side slope and take place, has the atress equilibrium, and the advantage that the practicality is strong can effectively prevent that deep basal pit's side slope from producing the unstability phenomenon of sliding and causing the potential safety hazard.
3. The utility model discloses a connection between the adjacent spliced pole is strengthened to the connecting piece, can guarantee the steadiness of vertical installation between the spliced pole 12.
Drawings
Fig. 1 is a longitudinal sectional view of the present invention;
fig. 2 is a top cross-sectional view of the present invention;
FIG. 3 is a schematic view of the connection structure between the connecting member and the connecting post of the present invention;
fig. 4 is a cross-sectional view of a reinforcing mesh in the present invention;
fig. 5 is a schematic structural view of the waterproof curtain of the present invention.
In the figure: 1. a foundation pit; 2. side slope; 3. a first connection network; 4. a second connection network; 5. a reinforcing mesh; 6. soil nailing; 7. a first concrete layer; 8. backfilling; 9. a second concrete layer; 10. a guard plate; 11. a pit surface; 12. connecting columns; 13. a connecting member; 14. first mounting steel; 15. second mounting steel; 16. a waterproof curtain; 17. a waterproof layer; 18. reinforcing ribs; 19. mounting blocks; 20. pouring a pipe; 21. a reinforcement column; 22. bracing; 23. short piles; 24. and (7) mounting a base.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Example one
As shown in fig. 1 to 5, the deep foundation pit supporting structure of the present embodiment includes a side slope 2, a side slope supporting structure fixedly disposed on the side slope 2, a connecting row column and a waterproof curtain 16 sequentially disposed in the foundation pit 1 from outside to inside;
the connecting row columns are composed of a plurality of connecting columns 12, and connecting pieces 13 are fixedly arranged between adjacent connecting columns 12 (in the embodiment, the connecting columns 12 are equidistantly distributed in the foundation pit 1); the waterproof curtain 16 consists of a plurality of fixed seamless-connected concrete columns, and a plurality of mounting holes are transversely arranged on the waterproof curtain 16; the mounting holes penetrate through the waterproof curtain 16 and the connecting column 12 to be communicated to the slope supporting structure, and a pouring pipe 20 is arranged in each mounting hole; one end of the pouring pipe 20 penetrates through the mounting hole to be fixedly connected with the side slope supporting structure, a reinforcing column 21 formed by concrete pouring is arranged in the pouring pipe, and a supporting assembly is fixedly arranged at the other end of the pouring pipe 20; one end of the supporting component is fixedly connected with the pouring pipe 20, and the other end of the supporting component is fixedly connected with the bottom of the foundation pit 1 and used for supporting the pouring pipe 20.
Further, the support assembly comprises a mounting block 19, a diagonal brace 22, a stub 23 and a mounting base 24; the mounting block 19 is fixedly connected to the other end of the pouring pipe 20 and fixedly connected to the waterproof curtain 16, one end of the inclined strut 22 is fixedly connected to the mounting block 19, the other end of the inclined strut is fixedly connected to the stub 23, and the stub 23 is fixedly connected to the foundation pit 1 through the mounting base 24. In the present embodiment, the mounting base 24 is fixedly connected to the foundation pit 1 by bolts. Set up the baffle in the outside of foundation ditch 1, can set up the access door on the baffle, make things convenient for large-scale machinery and transport vechicle to come in and go out, reduce the disturbance to peripheral resident's life.
The beneficial effects of this embodiment lie in strengthening the transverse connection between waterproof curtain, spliced pole, the side slope supporting construction through reinforced post and supporting component, improve foundation ditch construction building's security.
Example two
Further, referring to fig. 1 and 4, the slope supporting structure includes a first connection net 3, a second connection net 4, a reinforcing mesh 5, soil nails 6, a first concrete layer 7, backfill soil 8, a second concrete layer 9, and a guard plate 10;
the first connecting net 3, the second connecting net 4 and the reinforcing mesh 5 are sequentially arranged on the side wall of the side slope 2 from inside to outside of the foundation pit 1 and are fixed through soil nails 6, wherein the first connecting net 3 and the second connecting net 4 are both made of metal grating materials, and the mesh diameter of the first connecting net 3 is smaller than that of the second connecting net 4; a first concrete layer 7 is arranged on one side, close to the foundation pit 1, of the reinforcing mesh 5; the backfill soil 8 is arranged on one side of the first concrete layer 7 close to the foundation pit 1, and a second concrete layer 9 is arranged on one side of the backfill soil 8 close to the foundation pit 1; the guard plate 10 is disposed on one side of the second concrete layer 9 near the foundation pit 1 for covering the concrete.
The improvement of this embodiment lies in, through first, second connecting network and reinforcing bar net 5, cooperation soil nail 6 and first, second concrete layer can effectively reduce the unstable condition of side slope and take place, has the atress equilibrium, and the advantage that the practicality is strong can effectively prevent that the side slope 2 of deep basal pit from producing the slip unstability phenomenon and causing the potential safety hazard.
EXAMPLE III
Further, referring to fig. 3, the connecting member 13 comprises a first mounting steel 14 and a second mounting steel 15; the first mounting steel 14 and the second mounting steel 15 are arranged between two adjacent connecting columns 12 in a crossed mode, and the first mounting steel 14 and the second mounting steel 15 are fixedly connected. The first mounting steel 14 and the second mounting steel 15 are connected in a welding mode, and the connecting piece 13 and the connecting column 12 are fixed in a cast-in-place mode.
The improvement of the embodiment is that the connection between the adjacent connecting columns 12 is strengthened through the connecting pieces 13, and the longitudinal installation stability between the connecting columns 12 can be ensured.
Example four
The construction method of the deep foundation pit supporting structure comprises the following steps:
s1, sequentially laying the first connecting net 3 and the second connecting net 4 on the slope 2, and fixing the corners of the two connecting nets (in the embodiment, the first connecting net 3 is laid firstly, and the corners are fixed by soil nails 6; then the second connecting net 4 is laid, and the corners are fixed by the soil nails 6); laying a reinforcing mesh 5 on the second connecting mesh 4; a plurality of soil nails 6 penetrate through the first connecting net 3, the second connecting net 4 and the reinforcing mesh 5, and the soil nails 6 extend into the interior of the side slope 2 (a certain gap is reserved between the two groups of connecting nets and the one group of reinforcing mesh 5);
spraying concrete to the reinforcing mesh 5 to form a first concrete layer 7; covering the first concrete layer 7 with backfill soil 8 and compacting to ensure that one side of the backfill soil 8 is vertical to the ground; spraying concrete to one side of the backfill soil 8 close to the foundation pit 1 to form a second concrete layer 9; arranging guard plates 10 on one side of the second concrete layer 9 close to the foundation pit 1, and splicing the guard plates 10 without leaving gaps;
s2, mounting each connecting column 12 on the inner side wall of the foundation pit 1, and mounting connecting pieces between adjacent connecting columns 12;
s3, installing a waterproof curtain 16 on the inner side of the connecting column 12; painting waterproof material on the surface of the waterproof curtain 16 to form a waterproof layer 17;
s4, transversely punching a hole on the waterproof curtain 16, and penetrating through the waterproof curtain 16, the connecting column 12, the guard plate 10, the second concrete layer 9 and the backfill soil 8; inserting a pouring pipe 20 into the hole, and pouring concrete into the pouring pipe 20 to form a reinforcing column 21; the mounting block 19 is fixedly arranged at one end of the pouring pipe 20 extending out of the mounting hole and is fixedly connected with the waterproof curtain 16; each stub 23 is fixedly arranged on the foundation pit 1 by using an installation base 24; one end of the inclined strut 22 is fixedly connected to the mounting block 19, and the other end is fixedly connected to the short pile 23; and covering soil with a certain thickness on the foundation pit 1 to form a pit surface 11 for covering the short piles 23.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (5)
1. The utility model provides a deep basal pit supporting construction which characterized in that: comprises a side slope (2), a side slope supporting structure fixedly arranged on the side slope (2), and a connecting row column and a waterproof curtain (16) which are sequentially arranged in a foundation pit (1) from outside to inside;
the connecting row columns are composed of a plurality of connecting columns (12), and connecting pieces (13) are fixedly arranged between adjacent connecting columns (12); the waterproof curtain (16) consists of a plurality of fixed seamless-connected concrete columns, and a plurality of mounting holes are transversely formed in the waterproof curtain (16); the mounting holes penetrate through the waterproof curtain (16) and the connecting column (12) and are communicated with the slope supporting structure, and a pouring pipe (20) is arranged in each mounting hole; one end of the pouring pipe (20) penetrates through the mounting hole to be fixedly connected with a slope supporting structure, a reinforcing column (21) formed by pouring concrete is arranged inside the pouring pipe, and a supporting assembly is fixedly arranged at the other end of the pouring pipe (20); one end of the supporting component is fixedly connected with the pouring pipe (20), and the other end of the supporting component is fixedly connected with the bottom of the foundation pit (1) and used for supporting the pouring pipe (20).
2. A deep foundation pit supporting construction according to claim 1, wherein: the support assembly comprises a mounting block (19), a diagonal brace (22), a stub (23) and a mounting base (24); the mounting block (19) is fixedly connected to the other end of the pouring pipe (20) and fixedly connected with the waterproof curtain (16), one end of the inclined strut (22) is fixedly connected with the mounting block (19), the other end of the inclined strut is fixedly connected to the short pile (23), and the short pile (23) is fixedly connected to the foundation pit (1) through the mounting base (24).
3. A deep foundation pit supporting construction according to claim 2, wherein: the side slope supporting structure comprises a first connecting net (3), a second connecting net (4), a reinforcing mesh (5), soil nails (6), a first concrete layer (7), backfill soil (8), a second concrete layer (9) and a protective plate (10);
the first connecting net (3), the second connecting net (4) and the reinforcing mesh (5) are sequentially arranged on the side wall of the side slope (2) from inside to outside of the foundation pit (1) and are fixed through soil nails (6); a first concrete layer (7) is arranged on one side, close to the foundation pit (1), of the reinforcing mesh (5); the backfill soil (8) is arranged on one side, close to the foundation pit (1), of the first concrete layer (7), and a second concrete layer (9) is arranged on one side, close to the foundation pit (1), of the backfill soil (8); the guard plate (10) is arranged on one side, close to the foundation pit (1), of the second concrete layer (9) and used for covering concrete.
4. A deep foundation pit supporting construction according to claim 3, wherein: the connecting piece (13) comprises a first mounting steel (14) and a second mounting steel (15); the first mounting steel (14) and the second mounting steel (15) are arranged between two adjacent connecting columns (12) in a crossed mode, and the first mounting steel (14) and the second mounting steel (15) are fixedly connected.
5. A deep foundation pit supporting construction according to claim 4, wherein: and reinforcing ribs (18) are arranged inside the concrete column of the waterproof curtain (16), and a waterproof layer (17) is arranged on the outer surface of the concrete column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021279701.0U CN212688974U (en) | 2020-07-02 | 2020-07-02 | Deep foundation pit supporting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021279701.0U CN212688974U (en) | 2020-07-02 | 2020-07-02 | Deep foundation pit supporting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212688974U true CN212688974U (en) | 2021-03-12 |
Family
ID=74895499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021279701.0U Expired - Fee Related CN212688974U (en) | 2020-07-02 | 2020-07-02 | Deep foundation pit supporting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212688974U (en) |
-
2020
- 2020-07-02 CN CN202021279701.0U patent/CN212688974U/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 |
Granted publication date: 20210312 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |