CN219973154U - High water level shallow foundation pit soft foundation treatment construction structure - Google Patents
High water level shallow foundation pit soft foundation treatment construction structure Download PDFInfo
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- CN219973154U CN219973154U CN202321544204.2U CN202321544204U CN219973154U CN 219973154 U CN219973154 U CN 219973154U CN 202321544204 U CN202321544204 U CN 202321544204U CN 219973154 U CN219973154 U CN 219973154U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 86
- 238000010276 construction Methods 0.000 title claims abstract description 29
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 18
- 230000002093 peripheral effect Effects 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 8
- 239000004575 stone Substances 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 2
- 239000004576 sand Substances 0.000 claims description 2
- 239000002689 soil Substances 0.000 abstract description 12
- 230000009977 dual effect Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 35
- 210000002421 cell wall Anatomy 0.000 description 3
- 239000012466 permeate Substances 0.000 description 3
- 238000007596 consolidation process Methods 0.000 description 2
- 238000009435 building construction Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model discloses a high-water-level shallow foundation pit soft foundation treatment construction structure which comprises a drainage ditch constructed at a peripheral position of the edge of a high-water-level shallow foundation pit soft foundation and a plurality of reinforcing piles constructed at the peripheral position of the drainage ditch along the circumferential direction of the drainage ditch, wherein a drainage mechanism is arranged in the drainage ditch before the tamping of the high-water-level shallow foundation pit soft foundation, and a pebble filling layer and a reinforcing foundation structure are backfilled on the high-water-level shallow foundation pit soft foundation after the tamping and drainage. According to the utility model, the drainage mechanism is arranged on the wall of the drainage ditch, so that the dual functions of drainage and support are realized, the convenience of the foundation construction process is improved, soil on the foundation is tamped by the tamping equipment, at the moment, moisture in the soft foundation of the high-water-level shallow foundation pit can enter the drainage ditch through the L-shaped pipe of the permeable support plate, then a reinforced foundation structure is constructed on the tamped foundation, the soft soil of the foundation is not required to be completely dug out in the whole construction process, and the convenience and efficiency of the soft foundation treatment of the high-water-level shallow foundation pit are improved.
Description
Technical Field
The utility model belongs to the technical field of high-water-level foundation pit soft foundation treatment, and particularly relates to a high-water-level shallow foundation pit soft foundation treatment construction structure.
Background
The high-water-level shallow foundation pit soft foundation mainly refers to a foundation with high underground water level, softer foundation close to the earth surface, higher water content of soil in the foundation and poorer soil compactness, and has the characteristics of large natural pore ratio, high compressibility, low shear strength, small consolidation coefficient, long consolidation time, large disturbance and the like, and a foundation structure and a building cannot be built on the high-water-level shallow foundation pit soft foundation without manual reinforcement treatment.
The shallow foundation pit is a foundation pit with the depth of not more than 10m, the conventional treatment mode of the high-water-level shallow foundation pit soft foundation is mainly constructed in a filling mode, namely, soft soil with a certain upper layer is taken out, tamping treatment is carried out on the excavated foundation, finally, soil with high shearing strength and low compressibility is backfilled, tamping is continued, building construction is carried out on the treated foundation, in the filling process, not only the taken soft soil needs to be treated, but also foundation pit protection needs to be paid, pit edge stability is ensured, a large amount of construction machinery and supporting equipment are used at the edge position of the foundation pit, more supporting equipment occupies foundation pit space, further, the foundation pit filling construction process is inconvenient, convenience of the high-water-level shallow foundation pit soft foundation treatment is influenced, and meanwhile, the workload of the high-water-level shallow foundation pit soft foundation treatment and the efficiency of the high-water-level shallow foundation pit soft foundation treatment are increased.
For this purpose, we propose a high water level shallow foundation pit soft foundation treatment construction structure to solve the above problems.
Disclosure of Invention
The utility model aims to solve the problems and provides a soft foundation treatment construction structure for a high-water-level shallow foundation pit.
In order to solve the technical problems, the utility model adopts the following technical scheme: a high water level shallow foundation pit soft foundation treatment construction structure which is characterized in that: the method comprises a drainage ditch constructed at a peripheral position of the edge of a soft foundation of a high-water-level shallow foundation pit and a plurality of reinforcing piles constructed at the peripheral position of the drainage ditch along the circumferential direction of the drainage ditch, wherein a drainage mechanism is arranged in the drainage ditch before the soft foundation of the high-water-level shallow foundation pit is tamped, and a pebble filling layer and a reinforcing foundation structure are backfilled on the soft foundation of the high-water-level shallow foundation pit after the drainage ditch is tamped;
the thickness of the reinforced foundation structure is smaller than the depth of the drainage ditch;
the drainage mechanism comprises a water-permeable support plate arranged on the inner ring wall surface of the drainage ditch, a support plate arranged on the outer sides of the reinforcing piles and a plurality of water pumps arranged in the drainage ditch, wherein the water-permeable support plate and the support plate are supported by a plurality of support rods; the support plate that permeates water includes the plate body, the fluting has been seted up to the outer wall of plate body, and the trough has been seted up to grooved bottom, grooved cell wall fixedly connected with fine mesh water permeable plate, the cell wall fixedly connected with L venturi tube of basin, the lateral end of L venturi tube passes the outer wall of plate body and stretches into in the escape canal.
The above-mentioned construction structure is handled to shallow foundation pit soft foundation of high water level, its characterized in that: the soft foundation of the high-water-level shallow foundation pit is compacted by a heavy hammer type tamper.
The above-mentioned construction structure is handled to shallow foundation pit soft foundation of high water level, its characterized in that: and a plurality of pile holes are drilled in the soft foundation of the high-water-level shallow foundation pit with the backfilled reinforced foundation structure, and concrete supporting piles are constructed in the pile holes.
The above-mentioned construction structure is handled to shallow foundation pit soft foundation of high water level, its characterized in that: and the top parts of the reinforcing piles, the concrete supporting piles and the reinforced foundation structure are jointly paved with concrete raft layers.
The above-mentioned construction structure is handled to shallow foundation pit soft foundation of high water level, its characterized in that: the reinforced foundation structure comprises a pebble layer, a gravel mixed layer, a cushioned layer and a backfill layer which are paved in sequence.
The above-mentioned construction structure is handled to shallow foundation pit soft foundation of high water level, its characterized in that: the pebble filling layer is paved in a drainage ditch positioned at the lower part of the reinforced foundation structure.
The foundation ditch soft foundation treatment device has the advantages that by arranging the drainage mechanism, when the high-water-level shallow foundation ditch soft foundation treatment is constructed, firstly, the drainage ditch is excavated, the supporting plate and the permeable supporting plate are paved on the wall of the drainage ditch, then the supporting plate is supported through the supporting rods, multi-position supporting can be simultaneously carried out, convenience in the foundation construction process is improved, soil on the foundation is tamped through the tamping equipment, at the moment, moisture in the high-water-level shallow foundation ditch soft foundation can enter the drainage ditch through the L-shaped pipe of the permeable supporting plate, then the concrete supporting pile is added on the tamped foundation to support, meanwhile, the pebble layer, the gravel mixed layer, the stone layer and the backfill layer are tamped layer in the foundation ditch, finally, the concrete raft layer is constructed, the whole construction process does not need to dig out soft soil of the foundation, the foundation ditch protection is simple, meanwhile, the foundation ditch protection can not influence the construction of the high-water-level shallow foundation ditch soft foundation, the convenience and the efficiency of the high-water-level shallow foundation ditch soft foundation treatment are improved, and the popularization and use are facilitated.
The technical scheme of the utility model is further described in detail through the drawings and the embodiments.
Drawings
FIG. 1 is a view showing the effect of the treatment of the soft foundation of the shallow foundation pit with high water level.
FIG. 2 is a schematic view of the construction structure of the present utility model prior to compaction.
FIG. 3 is a schematic structural view of the water permeable support plate of the present utility model.
Reference numerals illustrate:
1-reinforcing piles; 2-a water-permeable support plate; 3-a supporting plate;
4-supporting rods; 5-reinforcing the foundation structure; 6, concrete support piles;
7, a concrete raft layer; 8-a drainage ditch; 9-a pebble filling layer;
10-a water pump; 21-a plate body; 22-a water tank;
23-a fine-mesh water permeable plate; 24-L-shaped pipe; 51-pebble layer;
52-a sand and stone mixed layer; 53-a bedding layer; 54-backfill layer.
Detailed Description
As shown in fig. 1 to 3, the utility model comprises a drainage ditch 8 constructed at a peripheral position of the edge of a soft foundation of a high-water-level shallow foundation pit and a plurality of reinforcing piles 1 constructed at the peripheral position of the outer edge of the drainage ditch 8 along the peripheral direction of the drainage ditch 8, wherein a drainage mechanism is arranged in the drainage ditch 8 before the soft foundation of the high-water-level shallow foundation pit is tamped, and a pebble filling layer 9 and a reinforcing foundation structure 5 are backfilled on the soft foundation of the high-water-level shallow foundation pit after the drainage is tamped;
the thickness of the reinforced foundation structure 5 is smaller than the depth of the drainage ditch 8;
the drainage mechanism comprises a water permeable support plate 2 arranged on the inner ring wall surface of the drainage ditch 8, a support plate 3 arranged on the outer sides of the reinforcing piles 1 and a plurality of water pumps 10 arranged in the drainage ditch 8, wherein the water permeable support plate 2 and the support plate 3 are supported by a plurality of support rods 4; the water permeable support plate 2 comprises a plate body 21, a slot is formed in the outer wall of the plate body 21, a water tank 22 is formed in the bottom end of the slot, a fine-mesh water permeable plate 23 is fixedly connected to the slot wall of the slot, an L-shaped pipe 24 is fixedly connected to the slot wall of the water tank 22, and the side end of the L-shaped pipe 24 penetrates through the outer wall of the plate body 21 and stretches into the drainage ditch 8.
In this embodiment, the soft foundation of the high water level shallow foundation pit is compacted by a heavy hammer compactor.
In this embodiment, a plurality of pile holes are drilled in the soft foundation of the high water level shallow foundation pit with the reinforced foundation structure 5 backfilled, and concrete supporting piles 6 are constructed in the pile holes.
In this embodiment, the top parts of the reinforcing piles 1, the concrete supporting piles 6 and the reinforcing foundation structure 5 are laid with concrete raft layers 7.
In this embodiment, the reinforced foundation structure 5 includes a pebble layer 51, a gravel mixed layer 52, a filler layer 53 and a backfill layer 54 sequentially laid.
In this embodiment, the pebble filling layer 9 is laid in the drainage ditch 8 at the lower part of the reinforced foundation structure 5.
It should be noted that, through setting up drainage mechanism, when the shallow foundation ditch soft foundation of high water level handles construction, at first excavate the escape canal, and lay backup pad and permeate water the supporting plate on the cell wall of escape canal, then support through the supporting rod, and can carry out multi-position support simultaneously, improve the convenience of foundation work progress, soil on the foundation is tamped through tamping equipment, and the moisture can get into the escape canal through the L pipe of permeate water the supporting plate in the shallow foundation of high water level this moment in soft foundation, afterwards increase concrete support stake on the foundation that tamps and support, lay the pebble layer in the foundation ditch layer by layer simultaneously, gravel mixed layer, pad layer and backfill layer, at last construction concrete raft layer end, the whole work progress need not the soft soil of digging the foundation entirely, and foundation ditch protection is simple, the foundation ditch protection can not influence the construction of the shallow foundation of high water level, is simple and convenient, and further improved the convenience and the efficiency of the shallow foundation ditch soft foundation of high water level.
The utility model is implemented by the following steps:
s1, firstly scribing a soft foundation position of a high-water-level shallow foundation pit, forming a drainage ditch on the soft foundation of the high-water-level shallow foundation pit at the inner side of the scribing, and then forming a plurality of reinforcing piles 1 in the drainage ditch;
s2, arranging a drainage mechanism in the drainage ditch;
s3, arranging a heavy hammer tamping device on the foundation, tamping soil on the surface layer of the foundation by utilizing the impact force of falling of the heavy hammer, and enabling water in the foundation to flow into the drainage ditch through the permeable support plate 2 in the tamping process;
s4, arranging a water pump in the drainage ditch to timely drain accumulated water in the drainage ditch in the next step;
s5, withdrawing the drainage mechanism in the drainage ditch before backfilling the reinforced foundation structure 5 on the pretreated soft foundation of the high-water-level shallow foundation pit in the step S3;
s6, drilling a plurality of pile holes in the soft foundation of the shallow foundation pit with the high water level after the reinforced foundation treatment in the step S5 is finished, and constructing concrete supporting piles 6 in the pile holes;
and S7, finally, jointly paving concrete raft layers 7 at the tops of the reinforcing piles 1, the concrete supporting piles 6 and the reinforced foundation structure 5.
The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, and any simple modification, variation and equivalent structural changes made to the above embodiment according to the technical substance of the present utility model still fall within the scope of the technical solution of the present utility model.
Claims (6)
1. A high water level shallow foundation pit soft foundation treatment construction structure which is characterized in that: the method comprises a drainage ditch (8) constructed at a peripheral position of the edge of a soft foundation of a high-water-level shallow foundation pit and a plurality of reinforcing piles (1) constructed at the peripheral position of the drainage ditch (8) along the circumferential direction of the drainage ditch (8), wherein a drainage mechanism is arranged in the drainage ditch (8) before the soft foundation of the high-water-level shallow foundation pit is tamped, and a pebble filling layer (9) and a reinforcing foundation structure (5) are backfilled on the soft foundation of the high-water-level shallow foundation pit after the drainage is tamped;
the thickness of the reinforced foundation structure (5) is smaller than the depth of the drainage ditch (8);
the drainage mechanism comprises a water permeable support plate (2) arranged on the inner ring wall surface of the drainage ditch (8), a support plate (3) arranged on the outer sides of the reinforcing piles (1) and a plurality of water pumps (10) arranged in the drainage ditch (8), wherein the water permeable support plate (2) and the support plate (3) are supported by a plurality of support rods (4); the water permeable support plate (2) comprises a plate body (21), a slot is formed in the outer wall of the plate body (21), a water tank (22) is formed in the bottom of the slot, a fine-mesh water permeable plate (23) is fixedly connected to the slot wall of the slot (22), an L-shaped pipe (24) is fixedly connected to the slot wall of the water tank (22), and the side end of the L-shaped pipe (24) penetrates through the outer wall of the plate body (21) and stretches into the drainage ditch (8).
2. The high water level shallow foundation pit soft foundation treatment construction structure according to claim 1, wherein: the soft foundation of the high-water-level shallow foundation pit is compacted by a heavy hammer type tamper.
3. The high water level shallow foundation pit soft foundation treatment construction structure according to claim 1, wherein: and a plurality of pile holes are drilled in the soft foundation of the high water level shallow foundation pit with the backfilled reinforced foundation structure (5), and concrete supporting piles (6) are constructed in the pile holes.
4. A high water level shallow foundation pit soft foundation treatment construction structure according to claim 3, wherein: the top of the reinforcing pile (1), the top of the concrete supporting pile (6) and the top of the reinforcing foundation structure (5) are paved with concrete raft layers (7) together.
5. The high water level shallow foundation pit soft foundation treatment construction structure according to claim 1, wherein: the reinforced foundation structure (5) comprises a pebble layer (51), a sand and stone mixed layer (52), a filler layer (53) and a backfill layer (54) which are paved in sequence.
6. The high water level shallow foundation pit soft foundation treatment construction structure according to claim 1, wherein: the pebble filling layer (9) is paved in a drainage ditch (8) positioned at the lower part of the reinforced foundation structure (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321544204.2U CN219973154U (en) | 2023-06-16 | 2023-06-16 | High water level shallow foundation pit soft foundation treatment construction structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321544204.2U CN219973154U (en) | 2023-06-16 | 2023-06-16 | High water level shallow foundation pit soft foundation treatment construction structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219973154U true CN219973154U (en) | 2023-11-07 |
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ID=88577768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321544204.2U Active CN219973154U (en) | 2023-06-16 | 2023-06-16 | High water level shallow foundation pit soft foundation treatment construction structure |
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| Country | Link |
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| CN (1) | CN219973154U (en) |
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2023
- 2023-06-16 CN CN202321544204.2U patent/CN219973154U/en active Active
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