CN204662417U - A kind of Deep Thick Soft Ground district pool roadbed foundation reinforcing structure - Google Patents
A kind of Deep Thick Soft Ground district pool roadbed foundation reinforcing structure Download PDFInfo
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- CN204662417U CN204662417U CN201520369227.3U CN201520369227U CN204662417U CN 204662417 U CN204662417 U CN 204662417U CN 201520369227 U CN201520369227 U CN 201520369227U CN 204662417 U CN204662417 U CN 204662417U
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- stake
- pile
- core stake
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- 230000003014 reinforcing Effects 0.000 title claims abstract description 14
- 239000002689 soil Substances 0.000 claims abstract description 28
- 230000002787 reinforcement Effects 0.000 claims abstract description 17
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 13
- 238000001764 infiltration Methods 0.000 claims abstract description 12
- 239000004575 stone Substances 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 210000003371 Toes Anatomy 0.000 claims abstract description 4
- 241000209094 Oryza Species 0.000 claims description 6
- 235000007164 Oryza sativa Nutrition 0.000 claims description 6
- 235000009566 rice Nutrition 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 4
- 239000004567 concrete Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
Abstract
A kind of Deep Thick Soft Ground district pool roadbed foundation reinforcing structure of the utility model design, it comprise multiple interval arrange and penetrate that soft layer enters hardcore add core stake, add core stake and comprise agitation pile and core stake, core stake is coaxially embedded in agitation pile, adds core stake stake top and is provided with reinforcement cushion, infiltration soil layer, embankment successively; Be provided with the particulate soil layer being compacted to certain grade between reinforcement cushion and soft layer and be provided with pin wall at toe place; Be provided with mortar rubble masonry pavement in infiltration soil layer side, mortar flag stone extends to pin wall place; Mortar flag stone place is provided with spilled water hole, and spilled water hole is by reinforcement cushion and ft connection.The utility model bearing capacity is high, stress performance good, cost is low can be used for Ballast track railway and high-grade highway passes through Deep Thick Soft Ground district.
Description
Technical field
The utility model relates to railway bed reinforced soft soil ground field, more specifically relates to a kind of foundation reinforcing structure and the construction method thereof that are applied to Deep Thick Soft Ground district pool roadbed.
Background technology
Gather in pool, coastal some areas, Soft Soil Layer is deep, and soil mass property is poor, must meet the requirement in stable, sedimentation and bearing capacity three at this region railway construction roadbed.For ensureing that Subgrade Design meets regulation and stipulation, agitation pile stake, rotary churning pile and reinforced concrete pile is usually adopted to reinforce.More existing foundation reinforcement methods are adopt rigid pile to reinforce mostly at present, although reinforced concrete pile pile net structure bearing capacity is high, stress performance is good, and construction costs is high, builds uneconomical for Ballast track railway bed; The pile net structure such as CFG stake (CementFly-ash Gravel CFG), screw rod pile are inapplicable in mud and the Muddy Bottoms soil body; And agitation pile and rotary churning pile bearing capacity lower, be difficult to meet requirement for bearing capacity when embankment is higher.Poor at the pool, area, pool subsoil in addition, if suitably do not process, the jumbo constructions such as pile foundation have larger difficulty.Therefore need to improve prior art.
Utility model content
For Cen in background technology problem, the purpose of this utility model is to provide pool, the Deep Thick Soft Ground district roadbed foundation reinforcing structure passing through Deep Thick Soft Ground district for Ballast track railway and high-grade highway that a kind of bearing capacity is high, stress performance good, cost is low.
For achieving the above object, a kind of Deep Thick Soft Ground district pool roadbed foundation reinforcing structure of the utility model design, it is characterized in that: it comprise penetrate soft layer add core pile group, described in add core pile group and spaced apartly added core stake by multiple and form, described in add at the bottom of core stake stake and enter hardcore; Describedly add core stake and comprise agitation pile and core stake, described core stake is coaxially embedded in described agitation pile, and the length of described core stake is less than or equal to the length of described agitation pile; The described core stake stake top that adds is provided with reinforcement cushion; Between described reinforcement cushion and described soft layer, be provided with the particulate soil layer being compacted to certain grade, above described reinforcement cushion, be provided with the infiltration soil layer filled; The embankment being provided with placement in layers, rolling above described infiltration soil layer; Pin wall is provided with at toe place; Be provided with mortar rubble masonry pavement in described infiltration soil layer side, mortar flag stone extends to described pin wall place; Described mortar flag stone place is provided with spilled water hole, and described spilled water hole is by reinforcement cushion and ft connection.
Preferably, the pile spacing adding core stake described in is 1.0 meters ~ 2 meters.
Preferably, described core stake is that concrete is made.
Preferably, core stake is precast square pile: when agitation pile stake is long be less than or equal to 8 meters time, described core stake be uniform section square square pile; When agitation pile stake is grown up in 8 meters, described core stake is divided into joint and lower joint, adopts steel adapter sleeve or be welded to connect between upper joint and lower joint, and lower joint is uniform section square square pile, and the cross section of upper joint end face is greater than lower joint cross section and seamlessly transits to lower joint cross-sectional sizes.
Preferably, if the stake of agitation pile long be a, the stake of core stake is long is b: when a≤8 meter, b=a; When 8 meters≤a≤9 meter, b=8 rice; As a > 9 meters, b=a-1 rice.
Preferably, described particulate the thickness of the layer is 1 meter ~ 2 meters.
Preferred further, described particulate soil layer fills by minimal pressure actual arrival II level railway filler compacting standard.
Compared with the pile tube of routine, CFG stake and agitation pile, rotary churning pile pile net structure, the utility model has the advantage of: 1. the utility model is applicable to the deep & thick silt matter soil layer that CFG stake cannot be constructed, agitation pile can be solved, defect that rotary churning pile bearing capacity can not meet code requirement, and more cheap than pile tube; 2. the utility model can be used for pool roadbed Deep Thick Soft Ground road structure construction; So the utility model has that bearing capacity is high, stress performance good, cost is low can be used for Ballast track railway and high-grade highway passes through Deep Thick Soft Ground district.
Accompanying drawing explanation
Fig. 1 is the structural representation of pool, the utility model Deep Thick Soft Ground district roadbed foundation reinforcing structure
Fig. 2 is the structural representation that the utility model adds core stake
In figure: soft layer 1, add core stake 2 (agitation pile 2.1, core stake 2.2, upper joint 2.21, lower joint 2.22), hardcore 3, reinforcement cushion 4, particulate soil layer 5, infiltration soil layer 6, embankment 7, pin wall 8, mortar flag stone 9, spilled water hole 10.
Detailed description of the invention
Below by Fig. 1 ~ Fig. 2 and the mode enumerating embodiment more of the present utility model; be described in further detail the technical solution of the utility model (comprising optimal technical scheme), any technical characteristic in the present embodiment and any technical scheme all do not limit protection domain of the present utility model.
As shown in Figure 1, a kind of Deep Thick Soft Ground district pool roadbed foundation reinforcing structure of the utility model design, it is characterized in that: it comprise penetrate soft layer 1 add core pile group, described in add core pile group and spaced apartly added core stake 2 by multiple and form, described in add at the bottom of core stake 2 and enter hardcore 3; Describedly add core stake 2 and comprise agitation pile 2.1 and core stake 2.2, described core stake 2.2 is coaxially embedded in described agitation pile 2.1, and the length of described core stake 2.2 is less than or equal to the length of described agitation pile 2.1; Described core stake 2 tops that add are provided with reinforcement cushion 4; Between described reinforcement cushion 4 and described soft layer 1, be provided with the particulate soil layer 5 being compacted to certain grade, above described reinforcement cushion 4, be provided with the infiltration soil layer 6 filled; The embankment 7 be provided with placement in layers above described infiltration soil layer 6, rolling; Pin wall 8 is provided with at toe place; Be provided with mortar flag stone 9 bank protection in described infiltration soil layer 6 side, mortar flag stone 9 extends to described pin wall 8 place; Described mortar flag stone 9 place is provided with spilled water hole 10, and described spilled water hole 10 is by reinforcement cushion 4 and ft connection.
Preferably, described in add core stake 2 pile spacing be 1.0 meters ~ 2 meters, square or triangular arrangement can be adopted.
Preferably, described agitation pile 2.1 is made for cement-soil, and described core stake 2.2 is made for concrete.
Preferably, described particulate soil layer 5 fills by minimal pressure actual arrival II level railway filler compacting standard.The thickness of general described particulate soil layer 5 is 1 meter ~ 2 meters.
Preferably, core stake 2.2 is precast square pile: when agitation pile 2.1 is long be less than or equal to 8 meters time, described core stake 2.2 be the square square pile of uniform section; When agitation pile 2.1 is grown up in 8 meters, described core stake 2.2 is divided into joint 2.21 and lower joint 2.22, adopt steel adapter sleeve between upper joint 2.21 and lower joint 2.22 or be welded to connect, lower joint 2.22 is uniform section square square pile, the cross section of upper joint 2.21 end face is greater than lower joint 2.22 cross section and seamlessly transits to lower joint 2.22 cross-sectional sizes, as shown in Figure 2.
Preferably, from supporting capacity and cost angle, the relation of the long a of stake of general agitation pile 2.1 and the long b of stake of core stake 2.2 should meet: when a≤8 meter, b=a; When 8 meters≤a≤9 meter, b=8 rice; As a > 9 meters, b=a-1 rice.
Claims (6)
1. Deep Thick Soft Ground district pool roadbed foundation reinforcing structure, it is characterized in that: it comprise penetrate soft layer (1) add core pile group, the described core pile group that adds spaced apartly is added core stake (2) by multiple and forms, described in add at the bottom of core stake (2) stake and enter hardcore (3); Describedly add core stake (2) and comprise agitation pile (2.1) and core stake (2.2), described core stake (2.2) is coaxially embedded in described agitation pile (2.1), and the length of described core stake (2.2) is less than or equal to the length of described agitation pile (2.1); Described core stake (2) the stake top that adds is provided with reinforcement cushion (4); Between described reinforcement cushion (4) and described soft layer (1), be provided with the particulate soil layer (5) being compacted to certain grade, be provided with in described reinforcement cushion (4) top the infiltration soil layer (6) filled; At the embankment (7) that described infiltration soil layer (6) top is provided with placement in layers, rolls; Pin wall (8) is provided with at toe place; Be provided with mortar flag stone (9) bank protection in described infiltration soil layer (6) side, mortar flag stone (9) extends to described pin wall (8) place; Described mortar flag stone (9) place is provided with spilled water hole (10), and described spilled water hole (10) is by reinforcement cushion (4) and ft connection.
2. Deep Thick Soft Ground district according to claim 1 pool roadbed foundation reinforcing structure, is characterized in that: described in add core stake (3) pile spacing be 1.0 meters ~ 2 meters.
3. Deep Thick Soft Ground district according to claim 1 pool roadbed foundation reinforcing structure, it is characterized in that: core stake (2.2) is precast square pile: when agitation pile (2.1) stake is long be less than or equal to 8 meters time, described core stake (2.2) be uniform section square square pile; When agitation pile (2.1) stake is grown up in 8 meters, described core stake (2.2) is divided into joint (2.21) and lower joint (2.22), adopt steel adapter sleeve between upper joint (2.21) and lower joint (2.22) or be welded to connect, lower joint (2.22) is uniform section square square pile, and the cross section of upper joint (2.21) end face is greater than lower joint (2.22) cross section and seamlessly transits to lower joint (2.22) cross-sectional sizes.
4. pool, the Deep Thick Soft Ground district roadbed foundation reinforcing structure according to claim 1 or 3, is characterized in that: set the stake of agitation pile (2.1) long as a, and the stake of core stake (2.1) is long is b: when a≤8 meter, b=a; When 8 meters≤a≤9 meter, b=8 rice; As a > 9 meters, b=a-1 rice.
5. Deep Thick Soft Ground district according to claim 1 pool roadbed foundation reinforcing structure, is characterized in that: the thickness of described particulate soil layer (5) is 1 meter ~ 2 meters.
6. Deep Thick Soft Ground district according to claim 5 pool roadbed foundation reinforcing structure, is characterized in that: described particulate soil layer (5) minimal pressure actual arrival II level railway filler compacting standard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520369227.3U CN204662417U (en) | 2015-06-02 | 2015-06-02 | A kind of Deep Thick Soft Ground district pool roadbed foundation reinforcing structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520369227.3U CN204662417U (en) | 2015-06-02 | 2015-06-02 | A kind of Deep Thick Soft Ground district pool roadbed foundation reinforcing structure |
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| CN204662417U true CN204662417U (en) | 2015-09-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104878738A (en) * | 2015-06-02 | 2015-09-02 | 中铁第四勘察设计院集团有限公司 | Subgrade reinforcement structure for pond in deep soft soil area and construction method for subgrade reinforcement structure |
-
2015
- 2015-06-02 CN CN201520369227.3U patent/CN204662417U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104878738A (en) * | 2015-06-02 | 2015-09-02 | 中铁第四勘察设计院集团有限公司 | Subgrade reinforcement structure for pond in deep soft soil area and construction method for subgrade reinforcement structure |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |