CN220538619U - Soft foundation section high-filling gravel layer structure - Google Patents
Soft foundation section high-filling gravel layer structure Download PDFInfo
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- CN220538619U CN220538619U CN202321997656.6U CN202321997656U CN220538619U CN 220538619 U CN220538619 U CN 220538619U CN 202321997656 U CN202321997656 U CN 202321997656U CN 220538619 U CN220538619 U CN 220538619U
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- gravel layer
- gravel
- soft foundation
- permeable concrete
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 44
- 239000004576 sand Substances 0.000 claims abstract description 18
- 239000002245 particle Substances 0.000 claims abstract description 7
- 239000004567 concrete Substances 0.000 claims description 61
- 239000004575 stone Substances 0.000 claims description 45
- 239000012466 permeate Substances 0.000 abstract description 4
- 239000002689 soil Substances 0.000 description 9
- 239000011380 pervious concrete Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000008595 infiltration Effects 0.000 description 4
- 238000001764 infiltration Methods 0.000 description 4
- 230000035699 permeability Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000011549 displacement method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000009974 thixotropic effect Effects 0.000 description 1
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model discloses a soft foundation section high-filling gravel layer structure which comprises a soft foundation layer, a gravel layer and a vertical shaft, wherein a first gravel layer is arranged above the soft foundation layer, a second gravel layer, a third gravel layer, a fourth gravel layer and a sand layer are sequentially arranged above the first gravel layer, the diameters of aggregate particles in the gravel layer are sequentially the same, and the first gravel layer is larger than the second gravel layer, the third gravel layer is larger than the fourth gravel layer; the first gravel layer and the second gravel layer adopt coarse aggregates, and the third gravel layer and the fourth gravel layer adopt fine aggregates; a combined water seepage pipeline is arranged in the vertical shaft and penetrates through the soft foundation layer from the sand layer; according to the utility model, the first gravel layer, the second gravel layer, the third gravel layer, the fourth gravel layer and the sand layer are sequentially arranged from bottom to top, so that the gravel layer structures are sequentially piled up, the contact area is increased after the soft foundation permeates into the first gravel layer, the instability of the soft foundation is further improved, and the strength of the soft foundation is improved.
Description
Technical Field
The utility model relates to the technical field of soft foundation treatment, in particular to a soft foundation section high-filling gravel layer structure.
Background
Soft soil has high natural water content, high natural pore ratio, high strength, high compressibility, low permeability, rheological property and thixotropic property. According to the engineering characteristics of soft soil, if the engineering is directly built on the soft soil, the problems of large settlement and instability are easily generated, so that the engineering is damaged. According to the reinforcement principle of foundation treatment, the current treatment methods of soft soil foundations in engineering can be divided into the following five categories: a displacement method, a drainage consolidation (prepressing) method, a solidification material filling method, a dynamic compaction method and a reinforcement method; the soft soil foundation can be reinforced by adopting a cement stirring pile structure or a powder spraying pile structure or a CFG pile structure to form a composite foundation; if the soil is improperly treated for filling high soil slopes on soft soil foundations, the high soil filling can cause a series of engineering disasters such as slumping and instability, and great economic loss can be caused for the country.
However, traditional soft basic gravel layer structure lays singlely, adopts less rubble, causes the gravel layer bottom to be difficult to mix with soft basic, and the rubble layer top receives the extrusion force too big, still causes the soft basic deformation of gravel layer bottom easily, can not reach the bearing capacity of settlement, causes the equipment of rubble layer top to incline because of the deformation of soft basic, and adopts great rubble, causes the clearance between the rubble too big, and the supporting stability of rubble is not enough, and single rubble layer structure still is inconvenient for carrying out the problem of monitoring to the water level simultaneously.
Disclosure of Invention
In order to solve the problems in the prior art, the utility model provides a high-filling gravel layer structure of a soft foundation section, which can increase the water permeability, improve the strength of the soft foundation and improve the instability of the soft foundation.
The technical scheme of the utility model is as follows:
the utility model provides a soft foundation section high-filling gravel layer structure, includes soft basic unit, gravel layer and shaft, and the top of soft basic unit sets up first gravel layer, and first gravel layer top sets gradually second gravel layer, third gravel layer, fourth gravel layer and sand layer, and aggregate particle diameter size in the gravel layer is in proper order, and first gravel layer > second gravel layer > third gravel layer > fourth gravel layer; the first gravel layer and the second gravel layer adopt coarse aggregates, and the third gravel layer and the fourth gravel layer adopt fine aggregates; a combined water seepage pipeline is arranged in the vertical shaft and penetrates through the sand layer to the first gravel layer; the combined water seepage pipe is sequentially provided with a top concrete conduit, a second water permeable concrete conduit, a first water permeable concrete conduit and a bottom concrete conduit from top to bottom, and a water seepage pipe in the horizontal direction is arranged in the second gravel layer.
Preferably, the first crushed stone layer and the second crushed stone layer are paved with the same thickness, the paving thickness of the second crushed stone layer is larger than that of the third crushed stone layer, and the paving thickness of the third crushed stone layer is larger than that of the fourth crushed stone layer.
Preferably, the first and second crushed stone layers are laid to a thickness of 20CM, the third crushed stone layer is laid to a thickness of 15CM, and the fourth crushed stone layer is laid to a thickness of 10CM.
Preferably, the first permeable concrete conduit and the second permeable concrete conduit are both arranged inside the second gravel layer; one end of the top concrete conduit is connected with the second permeable concrete conduit, and the other end extends to penetrate through the sand layer to communicate with the outside air; the bottom concrete pipe that first pervious concrete pipe bottom is connected extends to the inside of first rubble layer.
Preferably, the bottom surface of the bottom concrete conduit is concave; the side walls of the first permeable concrete conduit and the second permeable concrete conduit are respectively provided with a first water seepage port, and the connection side of the first permeable concrete conduit and the second permeable concrete conduit is provided with a clamping groove for clamping and positioning; the side wall of the water seepage pipe is provided with a plurality of second water seepage holes.
The utility model has the following beneficial effects:
according to the utility model, the first gravel layer, the second gravel layer, the third gravel layer, the fourth gravel layer and the sand layer are sequentially arranged from bottom to top, so that the gravel layer structures are sequentially piled up, the contact area is increased after soft foundation permeates into the first gravel layer, the first gravel layer is paved with the same thickness as the second gravel layer, the paving thickness of the second gravel layer is larger than that of the third gravel layer, the paving thickness of the third gravel layer is larger than that of the fourth gravel layer, and the gravel layer close to the soft foundation layer is thicker, so that the bearing capacity is enhanced; the aggregate particle diameters in the crushed stone layers are sequentially that the first crushed stone layer is larger than the second crushed stone layer, the third crushed stone layer is larger than the fourth crushed stone layer; the contact area with the soft base layer can be increased by adopting the gravel layer with larger aggregate particles close to the soft base layer, and the water seepage property of the soft base can be further enhanced by further arranging the combined water seepage pipeline, so that the instability of the soft base is improved, and the strength of the soft base is improved.
Drawings
FIG. 1 is a schematic view of the crushed stone layer structure of the present utility model;
FIG. 2 is a schematic view of the structure of the interior of the shaft of the present utility model;
FIG. 3 is a schematic perspective view of a first pervious concrete conduit according to the present utility model;
FIG. 4 is a schematic view showing the semi-sectional structure of a first pervious concrete conduit according to the present utility model;
FIG. 5 is a schematic view showing the structure of a second pervious concrete conduit according to the present utility model;
FIG. 6 is a schematic view of a second pervious concrete conduit of the present utility model in semi-section;
FIG. 7 is a schematic view of the structure of the bottom concrete pipe of the present utility model in perspective;
fig. 8 is a schematic view of the bottom concrete pipe of the present utility model in half section.
The reference numerals in the drawings are as follows:
1. a soft base layer; 2. a first crushed stone layer; 3. a second crushed stone layer; 4. a third crushed stone layer; 5. a fourth crushed stone layer; 6. a sand layer; 7. a bottom concrete conduit; 8. a first permeable concrete conduit; 9. a second permeable concrete conduit; 10. a top concrete conduit; 11. a clamping groove; 12. a water seepage pipe; 13. a first weep hole; 14. and a second water seepage hole.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 to 8, a soft foundation section high-filling gravel layer structure comprises a soft foundation layer 1, a gravel layer and a vertical shaft, wherein a first gravel layer 2 is arranged above the soft foundation layer 1, a second gravel layer 3, a third gravel layer 4, a fourth gravel layer 5 and a sand layer 6 are sequentially arranged above the first gravel layer 2, and the aggregate particle diameter in the gravel layer is sequentially that the first gravel layer 2 is larger than the second gravel layer 3, the third gravel layer 4 is larger than the fourth gravel layer 5; the first crushed stone layer 2 and the second crushed stone layer 3 adopt coarse aggregates, and the third crushed stone layer 4 and the fourth crushed stone layer 5 adopt fine aggregates; a combined water seepage pipeline is arranged in the vertical shaft and penetrates through the sand layer 6 to the first gravel layer 2; the combined infiltration pipe is sequentially provided with a top concrete conduit 10, a second permeable concrete conduit 9, a first permeable concrete conduit 8 and a bottom concrete conduit 7 from top to bottom, and a infiltration pipe 12 in the horizontal direction is arranged in the second gravel layer 3.
Further, the first crushed stone layer 2 and the second crushed stone layer 3 are paved with the same thickness, the paving thickness of the second crushed stone layer 3 is larger than that of the third crushed stone layer 4, and the paving thickness of the third crushed stone layer 4 is larger than that of the fourth crushed stone layer 5; in this embodiment, the first crushed stone layer 2 and the second crushed stone layer 3 are selected to be paved with a thickness of 20CM, the third crushed stone layer 4 is paved with a thickness of 15CM, and the fourth crushed stone layer 5 is paved with a thickness of 10CM, so that the best expected technical effect can be achieved.
Further, the first pervious concrete conduit 8 and the second pervious concrete conduit 9 are both arranged inside the second gravel layer 3; one end of the top concrete conduit 10 is connected with the second permeable concrete conduit 9, and the other end extends to penetrate through the sand layer 6 to communicate with the outside air; the bottom concrete guide pipe 7 connected with the bottom end of the first permeable concrete guide pipe 8 extends to the inside of the first gravel layer 2, so that the infiltration and collection of the first permeable concrete guide pipe are facilitated.
Furthermore, the bottom surface of the bottom concrete conduit 7 is concave, which is more beneficial to the infiltration and collection of water; the side walls of the first permeable concrete conduit 8 and the second permeable concrete conduit 9 are respectively provided with a first water seepage port 13, and the connection side of the first permeable concrete conduit 8 and the second permeable concrete conduit 9 is provided with a clamping groove 11 for clamping and positioning, so that all pipelines are combined together in a clamping manner, and the pipelines are convenient to replace and install; the side wall of the water seepage pipe 12 is provided with a plurality of second water seepage holes 14.
The working principle of the utility model is as follows:
the utility model designs a soft foundation section high-filling gravel layer structure, which comprises a soft foundation layer 1, a gravel layer and a vertical shaft, wherein a first gravel layer 2 is arranged above the soft foundation layer 1, a second gravel layer 3, a third gravel layer 3, a fourth gravel layer 4 and a sand layer 6 are sequentially arranged above the first gravel layer 2, and the diameters of aggregate particles in the gravel layers are sequentially that the first gravel layer 2 is larger than the second gravel layer 3 is larger than the third gravel layer 4 is larger than the fourth gravel layer 5; the first crushed stone layer 2 and the second crushed stone layer 3 adopt coarse aggregates, and the third crushed stone layer 4 and the fourth crushed stone layer 5 adopt fine aggregates; a combined water seepage pipeline is arranged in the vertical shaft and penetrates through the sand layer 6 to the first gravel layer 2; the combined water seepage pipe sequentially comprises a top concrete guide pipe 10, a second water permeable concrete guide pipe 9, a first water permeable concrete guide pipe 8 and a bottom concrete guide pipe 7 from top to bottom, wherein the first water permeable concrete guide pipe 8 and the second water permeable concrete guide pipe 9 are arranged in the second gravel layer 3, and a water seepage pipe 12 in the horizontal direction is arranged in the second gravel layer 3; one end of the top concrete conduit 10 is connected with the second permeable concrete conduit 9, and the other end extends to penetrate through the sand layer 6 to communicate with the outside air; the bottom concrete guide pipe 7 connected with the bottom end of the first permeable concrete guide pipe 8 extends to the interior of the first gravel layer 2; according to the utility model, through the first gravel layer 2, the second gravel layer 3, the third gravel layer 4, the fourth gravel layer 5 and the sand layer 6 which are sequentially arranged from bottom to top, the gravel layer structures are sequentially piled up, so that the contact area is increased after soft foundation permeates into the first gravel layer 2, the water permeability is further increased, and after the water in the soft foundation layer 1 permeates into the gravel layer structures, the water seeps out horizontally upwards through the second water seepage holes 14 on the water seepage pipe 12, and the water seeps out vertically through the first water seepage holes 13 on the first water seepage concrete guide pipe 8 and the second water seepage concrete guide pipe 9.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.
Claims (5)
1. A soft foundation section high-filling gravel layer structure which is characterized in that: the soft foundation layer comprises a soft foundation layer (1), a gravel layer and a vertical shaft, wherein a first gravel layer (2) is arranged above the soft foundation layer (1), a second gravel layer (3), a third gravel layer (4) and a sand layer (6) are sequentially arranged above the first gravel layer (2), aggregate particle diameters in the gravel layer are sequentially the same as those of the first gravel layer (2) > the second gravel layer (3) > the third gravel layer (4) > the fourth gravel layer (5); the first crushed stone layer (2) and the second crushed stone layer (3) adopt coarse aggregates, and the third crushed stone layer (4) and the fourth crushed stone layer (5) adopt fine aggregates; a combined water seepage pipeline is arranged in the vertical shaft and penetrates through the first gravel layer (2) from the sand layer (6); the combined water seepage pipe is sequentially provided with a top concrete guide pipe (10), a second water permeable concrete guide pipe (9), a first water permeable concrete guide pipe (8) and a bottom concrete guide pipe (7) from top to bottom, and a water seepage pipe (12) in the horizontal direction is arranged in the second gravel layer (3).
2. The soft foundation section high-filling stone layer structure according to claim 1, wherein: the first gravel layer (2) and the second gravel layer (3) are paved with the same thickness, the paving thickness of the second gravel layer (3) is larger than that of the third gravel layer (4), and the paving thickness of the third gravel layer (4) is larger than that of the fourth gravel layer (5).
3. A soft foundation section high-fill stone layer structure according to claim 2, wherein: the thickness of the first gravel layer (2) and the second gravel layer (3) is 20CM, the thickness of the third gravel layer (4) is 15CM, and the thickness of the fourth gravel layer (5) is 10CM.
4. The soft foundation section high-filling stone layer structure according to claim 1, wherein: the first permeable concrete conduit (8) and the second permeable concrete conduit (9) are arranged in the second gravel layer (3); one end of the top concrete conduit (10) is connected with the second permeable concrete conduit (9), and the other end extends to penetrate through the sand layer (6) to be communicated with the outside air; the bottom concrete conduit (7) connected with the bottom end of the first permeable concrete conduit (8) extends to the inside of the first gravel layer (2).
5. The soft foundation section high-filling stone layer structure according to claim 4, wherein: the bottom surface of the bottom concrete conduit (7) is concave; the side walls of the first permeable concrete conduit (8) and the second permeable concrete conduit (9) are respectively provided with a first water seepage port (13), and the connection side of the first permeable concrete conduit (8) and the second permeable concrete conduit (9) is provided with a clamping groove (11) for clamping and positioning;
the side wall of the water seepage pipe (12) is provided with a plurality of second water seepage holes (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321997656.6U CN220538619U (en) | 2023-07-27 | 2023-07-27 | Soft foundation section high-filling gravel layer structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321997656.6U CN220538619U (en) | 2023-07-27 | 2023-07-27 | Soft foundation section high-filling gravel layer structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220538619U true CN220538619U (en) | 2024-02-27 |
Family
ID=89976638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321997656.6U Active CN220538619U (en) | 2023-07-27 | 2023-07-27 | Soft foundation section high-filling gravel layer structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220538619U (en) |
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2023
- 2023-07-27 CN CN202321997656.6U patent/CN220538619U/en active Active
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