CN208649807U - For eliminating the road structure of the high embankment lateral variation sedimentation in high-speed railway abrupt slope - Google Patents
For eliminating the road structure of the high embankment lateral variation sedimentation in high-speed railway abrupt slope Download PDFInfo
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- CN208649807U CN208649807U CN201721659562.2U CN201721659562U CN208649807U CN 208649807 U CN208649807 U CN 208649807U CN 201721659562 U CN201721659562 U CN 201721659562U CN 208649807 U CN208649807 U CN 208649807U
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Abstract
The utility model discloses a kind of for eliminating the road structure of the high embankment lateral variation sedimentation in high-speed railway abrupt slope.It includes the surface layer of subgrade bed and bottom layer of subgrade in the slopes of abrupt slope, further include raft plate, pile foundation and fills layer, the layer that fills is between abrupt slope slopes and bottom layer of subgrade, fill a layer top horizontal, fill a layer bottom fitting abrupt slope slope surface, it fills and is equipped with branch mark structure on the outside of layer, the raft plate is supported in surface layer of subgrade bed surface or bottom layer of subgrade by pile foundation, and the pile foundation bottom extends to inside the slopes of abrupt slope.The utility model is filling setting raft plate above layer, it is supported by pile foundation, raft plate+piling strtucture bearing capacity is high, one stable horizontal substrate can be provided for subgrade bed, to effectively control steep slope subgrade lateral variation sedimentation, program structure is simple, easy for construction, at low cost, can be widely applied in the high embankment engineering in high-speed railway abrupt slope.
Description
Technical field
The utility model belongs to Geotechnical Engineering field, and in particular to one kind is for eliminating the high embankment in high-speed railway abrupt slope
The road structure of lateral variation sedimentation.
Background technique
China is the vast country of mountain area area, and mountain area relief is big, and lateral slope of ground is steep, and these regional structures
Make, corrosion function it is strong, complex geologic conditions.With flourishing for high-speed railway, there is a large amount of high-speed railway abrupt slope
Subgrade engineering.In sloping area embankment in order to increase stability of slope, generally handled using pile plate wall supporting and retaining system.High-speed railway is mostly nothing
Tiny fragments of stone, coal, etc. track bed, stringent to settlement request, when the cross section gradient is steeper, roadbed lateral stiffness differs greatly, and is also easy to produce larger
Lateral variation sedimentation, it is difficult to meet the settlement request of high-speed railway.When embankment differential settlement transfinites, gently then road shoulder generation is perpendicular
To and horizontal displacement, it is heavy then cause road shoulder crack and influence orbital forcing.
Steep Slope Embankment lateral variation settlement issues are solved, can be set about in terms of two, one is to provide a kind of rigidity and basement rock
The comparable filler of rigidity, the rigidity by improving embankment fill material achieve the purpose that control relative settlement；Second is that being mentioned to roadbed filling
For a stable horizontal substrate, to achieve the purpose that control relative settlement.The stiffness method for improving embankment fill material can generally be adopted
It is filled with graded broken stone plus cement, when embankment is higher, this method treatment effect is unsatisfactory, and it is heavy to still remain base lateral variation
The problem of drop；And the existing method for providing maintenance level substrate is to excavate out a horizontal substrate on abrupt slope to come out, this side
Method is great in constructing amount, at high cost, is not suitable for the higher high-speed railway of embankment.
Utility model content
The purpose of this utility model is exactly to provide a kind of for eliminating height to solve deficiency existing for above-mentioned background technique
The road structure of the fast high embankment lateral variation sedimentation in railway abrupt slope, structure is simple, easy for construction, can be high-speed railway subgrade base
Bed provides a stable horizontal substrate, to control the sedimentation of roadbed lateral variation.
The technical solution adopted in the utility model is: one kind is for eliminating the high embankment lateral variation sedimentation in high-speed railway abrupt slope
Road structure further include raft plate, pile foundation and fill layer including the surface layer of subgrade bed and bottom layer of subgrade being located in the slopes of abrupt slope, institute
It states and fills layer between abrupt slope slopes and bottom layer of subgrade, fill a layer top horizontal, fill a layer bottom fitting abrupt slope slope surface,
It fills and is equipped with branch mark structure on the outside of layer, the raft plate is supported in surface layer of subgrade bed surface or bottom layer of subgrade by pile foundation, the stake
Basal part extends to inside the slopes of abrupt slope.
Further, the raft plate is armoured concrete slab, with a thickness of 0.6-1m.
Further, when the raft plate is located at surface layer of subgrade bed surface, surface layer of subgrade bed edge is extended on the outside of raft plate.
Further, when the raft plate is located in bottom layer of subgrade, bottom layer of subgrade edge is extended on the outside of raft plate.
Further, the pile foundation is reinforced concrete bored pile, and diameter 0.8-1.0m, lateral stake spacing is
3.0-5.0m, longitudinal stake spacing are 5.0-8.0m.
Further, the branch mark structure is pile plate wall or Gravity Retaining Wall, and with a thickness of 2-2.5m, supporting file structural base is prolonged
It extends to inside the slopes of abrupt slope.
Further, described fill flushes at the top of layer with the supporting file structural top.
Further, described to fill layer and filled and be compacted by C group filler.
Further, the abrupt slope slope surface is excavated with step, and the layer that fills is set on step.
Further, gutter is equipped with along route longitudinal direction on the inside of the surface layer of subgrade bed and bottom layer of subgrade.
The utility model is filling setting raft plate above layer, is supported by pile foundation, and raft plate+piling strtucture bearing capacity is high,
A stable horizontal substrate can be provided for subgrade bed, thus effectively control steep slope subgrade lateral variation sedimentation, program knot
Structure is simple, easy for construction, at low cost, can be widely applied in the high embankment engineering in high-speed railway abrupt slope.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
In figure: the slopes of the abrupt slope 1-；2- surface layer of subgrade bed；3- bottom layer of subgrade；4- branch mark structure；5- raft plate；6- pile foundation；7- is filled
Layer；8- step；The gutter 9-.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments, convenient for being well understood
The utility model, but they do not constitute the utility model and limit.
As shown in Figure 1, the utility model includes the surface layer of subgrade bed 2 and bottom layer of subgrade 3 in abrupt slope slopes 1, bedding table
Gutter 9 is equipped with along route longitudinal direction on the inside of layer 2 and bottom layer of subgrade 3.Further include raft plate 5, pile foundation 6 and fills layer 7, it is described to fill out
Layer 7 is built between abrupt slope slopes 1 and bottom layer of subgrade 3, fills 7 top horizontal of layer, fills 7 bottom of layer fitting, 1 table of abrupt slope slopes
Face, fills and is equipped with branch mark structure 4 on the outside of layer 7, and the raft plate 5 is supported in 2 surface of surface layer of subgrade bed or bottom layer of subgrade 3 by pile foundation 6
In, 6 bottom of pile foundation extends to inside abrupt slope slopes 1, and pile foundation is arranged in 5 bottom uniform intervals of raft plate.
In above scheme, raft plate 5 is C35 armoured concrete slab, and with a thickness of 0.6-1m, long and width is according to section width and work
Point length is determining, general width 9-15m, long 15-25m.When raft plate 5 is located at 2 surface of surface layer of subgrade bed, extend on the outside of 5 lower surface of raft plate
To 2 edge (not shown) of surface layer of subgrade bed.When raft plate 5 is located in bottom layer of subgrade 3, bedding is extended on the outside of 5 upper surface of raft plate
3 edge 3.1 of bottom.Raft plate 5 extends to surface layer of subgrade bed edge or bottom layer of subgrade edge, can be avoided the structure time above raft plate
It cracks after length.
In above scheme, pile foundation 6 is reinforced concrete bored pile, and diameter 0.8-1.0m, lateral stake spacing is
3.0-5.0m, longitudinal stake spacing are 5.0-8.0m.
In above scheme, branch mark structure 4 is pile plate wall or Gravity Retaining Wall, and with a thickness of 2-2.5m, 4 bottom of branch mark structure is prolonged
It extends to inside abrupt slope slopes 1.
In above scheme, fill the top of layer 7 with flushed at the top of the branch mark structure 4.Surface layer 0.7m surface layer of subgrade bed uses grade
With rubble, 0.7~3.0m bottom layer of subgrade uses+3% cement of graded broken stone below surface layer, fills layer and is filled and pressed by C group filler
It forms in fact.Slopes 1 surface 1.1 in abrupt slope is excavated with step 8, and step 8 is 1.0m high, wide 2.5m, and the layer 7 that fills is set to step 8
On.
The construction procedure of the application includes:
1, to guarantee that the smooth of embankment fill material is filled and be compacted, the retaining structure 4 in outside of constructing first: surveying and locating, stake
It excavates, installation dado template, perfusion breast wall concrete, borehole cleaning, steel reinforcement cage, perfusion pile concrete and maintenance is installed, is prefabricated in hole
Breast boards and installation.
2, in the 1 surface step excavation 8 of abrupt slope slopes of 4 inside of branch mark structure, step high 1.0m, wide 2.5m.
3, it fills the construction of layer 7: filling C group filler and be compacted, stopping is filled when filling to designed elevation.
4, pile foundation 6 is constructed: levelling of the land and preparation of construction, construction lofting, embedded steel pile casting, slurrying, pile foundation pore-forming
And the installation of borehole cleaning, fabrication of reinforcing cage, concrete perfusion, pile crown excavation cut.
5, raft plate 5 is constructed: levelling of the land compacting, pile measurement are laid with template, assembling reinforcement, casting concrete and carry out
Concrete maintaining, dismantling concrete template, maintenance.
6, it fills remainder filler (surface layer of subgrade bed and bottom layer of subgrade), completes embankments construction.
The content being not described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.
Claims (10)
1. a kind of road structure settled for eliminating the high embankment lateral variation in high-speed railway abrupt slope, including it is located at abrupt slope slopes
(1) surface layer of subgrade bed (2) and bottom layer of subgrade (3) on, it is characterised in that: further include raft plate (5), pile foundation (6) and fills layer (7),
The layer (7) that fills is located between abrupt slope slopes (1) and bottom layer of subgrade (3), fills layer (7) top horizontal, fills layer (7) bottom
It is bonded abrupt slope slope surface, fills and is equipped with branch mark structure (4) on the outside of layer (7), the raft plate (5) is supported in base by pile foundation (6)
In bed surface layer (2) surface or bottom layer of subgrade (3), it is internal that pile foundation (6) bottom extends to abrupt slope slopes (1).
2. it is according to claim 1 for eliminating the road structure of the high embankment lateral variation sedimentation in high-speed railway abrupt slope,
Be characterized in that: the raft plate (5) is armoured concrete slab, with a thickness of 0.6-1m.
3. it is according to claim 1 for eliminating the road structure of the high embankment lateral variation sedimentation in high-speed railway abrupt slope,
It is characterized in that: when the raft plate (5) is located at surface layer of subgrade bed surface, extending to surface layer of subgrade bed edge on the outside of raft plate (5).
4. it is according to claim 1 for eliminating the road structure of the high embankment lateral variation sedimentation in high-speed railway abrupt slope,
It is characterized in that: when the raft plate (5) is located in bottom layer of subgrade, extending to bottom layer of subgrade edge on the outside of raft plate (5).
5. it is according to claim 1 for eliminating the road structure of the high embankment lateral variation sedimentation in high-speed railway abrupt slope,
Be characterized in that: the pile foundation (6) is reinforced concrete bored pile, and diameter 0.8-1.0m, lateral stake spacing is 3.0-
5.0m, longitudinal stake spacing are 5.0-8.0m.
6. it is according to claim 1 for eliminating the road structure of the high embankment lateral variation sedimentation in high-speed railway abrupt slope,
Be characterized in that: the branch mark structure (4) is pile plate wall or Gravity Retaining Wall, and with a thickness of 2-2.5m, branch mark structure (4) bottom extends
It is internal to abrupt slope slopes (1).
7. it is according to claim 1 for eliminating the road structure of the high embankment lateral variation sedimentation in high-speed railway abrupt slope,
Be characterized in that: described fill flushes at the top of layer (7) at the top of the branch mark structure (4).
8. it is according to claim 1 for eliminating the road structure of the high embankment lateral variation sedimentation in high-speed railway abrupt slope,
It is characterized in that: described to fill layer (7) and filled and be compacted by C group filler.
9. it is according to claim 1 for eliminating the road structure of the high embankment lateral variation sedimentation in high-speed railway abrupt slope,
Be characterized in that: abrupt slope slopes (1) surface is excavated with step (8), and the layer (7) that fills is set on step (8).
10. it is according to claim 1 for eliminating the road structure of the high embankment lateral variation sedimentation in high-speed railway abrupt slope,
It is characterized in that: being equipped with gutter (9) along route longitudinal direction on the inside of the surface layer of subgrade bed (2) and bottom layer of subgrade (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721659562.2U CN208649807U (en) | 2017-11-30 | 2017-11-30 | For eliminating the road structure of the high embankment lateral variation sedimentation in high-speed railway abrupt slope |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721659562.2U CN208649807U (en) | 2017-11-30 | 2017-11-30 | For eliminating the road structure of the high embankment lateral variation sedimentation in high-speed railway abrupt slope |
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| CN208649807U true CN208649807U (en) | 2019-03-26 |
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| CN201721659562.2U Active CN208649807U (en) | 2017-11-30 | 2017-11-30 | For eliminating the road structure of the high embankment lateral variation sedimentation in high-speed railway abrupt slope |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107841908A (en) * | 2017-11-30 | 2018-03-27 | 中铁第四勘察设计院集团有限公司 | For eliminating the road structure of the high embankment lateral variation sedimentation in high-speed railway abrupt slope |
| CN110952387A (en) * | 2019-12-17 | 2020-04-03 | 同济大学 | Method for controlling settlement of wide embankment of high-speed railway by adopting cement mixing piles |
-
2017
- 2017-11-30 CN CN201721659562.2U patent/CN208649807U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107841908A (en) * | 2017-11-30 | 2018-03-27 | 中铁第四勘察设计院集团有限公司 | For eliminating the road structure of the high embankment lateral variation sedimentation in high-speed railway abrupt slope |
| CN110952387A (en) * | 2019-12-17 | 2020-04-03 | 同济大学 | Method for controlling settlement of wide embankment of high-speed railway by adopting cement mixing piles |
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