CN208167421U - A kind of underground water cutting location Ballast track high-speed railway anti-freeze expansion road structure - Google Patents
A kind of underground water cutting location Ballast track high-speed railway anti-freeze expansion road structure Download PDFInfo
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- CN208167421U CN208167421U CN201820701292.5U CN201820701292U CN208167421U CN 208167421 U CN208167421 U CN 208167421U CN 201820701292 U CN201820701292 U CN 201820701292U CN 208167421 U CN208167421 U CN 208167421U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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Abstract
The utility model relates to a kind of underground water cutting location Ballast track high-speed railway anti-freeze expansion road structures, including anti-freeze expansion surface layer of subgrade bed, first layer capillary drainage plate guarded drainage layer, anti-freeze expansion bottom layer of subgrade, the water seepage mechanism of the second layer capillary drainage plate guarded drainage layer and roadbed two sides, the anti-freeze expansion surface layer of subgrade bed, first layer capillary drainage plate guarded drainage layer, anti-freeze expansion bottom layer of subgrade and second layer capillary drainage plate guarded drainage layer are from top to bottom arranged successively, the second layer capillary drainage plate guarded drainage layer is located on ground, the first layer capillary drainage plate guarded drainage layer and second layer capillary drainage plate guarded drainage layer for one layer of PVC capillary drainage plate of folder paving among the medium-sand seam of 0.1m by respectively constituting up and down.Water is effectively discharged except soil structures by the capillarity and siphonage of PVC capillary drainage plate, avoid it is conventional using composite geo-membrane drainage blanket because of freezed in winter problem of frost heave caused by the road bed uneven even recessed impeded drainage that often occurs in construction.
Description
Technical field
The utility model relates to subgrade engineerings, and in particular to a kind of underground water cutting location Ballast track high-speed railway is antifreeze
Swollen road structure.
Background technique
High-speed railway, which is built, in frozen ground regions underground water cutting location is frequently encountered asking for roadbed frost damage deformation
Topic, high-speed railway is stringent to roadbed deformation requirements, and excessive frost-heaving deformation will affect traffic safety.Existing measure is mainly changed and is filled out
Weak frost heave filler, two sides are arranged water seepage mechanism and several layers of medium coarse sands folder one layer of composite geo-membrane water proof of paving are arranged in bedding
Layer, however the built high-speed railway in part, using there are still roadbed frost damage harm after above-mentioned measure processing, discovery is multiple when investigation is excavated
Closing on geomembrane has ponding icing, and this is mainly due to the road cambers often occurred in construction, and unobvious, road bed is cheated
Hollow uneven or even recessed and composite geo-membrane is laid with composite geo-membrane top surface impeded drainage caused by irregularity etc., so as to cause
Freezed in winter frost heave.
Utility model content
The utility model is directed to frozen ground regions underground water cutting location Ballast track high-speed railway subgrade, provides one
Kind of underground water cutting location Ballast track high-speed railway anti-freeze expansion road structure, main capillarity by capillary drainage plate and
Water is effectively discharged except soil structures siphonage, avoids routine using composite geo-membrane drainage blanket because often occurring in construction
Road camber is unobvious, freezed in winter problem of frost heave caused by road bed uneven even recessed impeded drainage.
In order to achieve the above objectives, the utility model adopts the following technical solution：A kind of underground water cutting location Ballast track
High-speed railway anti-freeze expansion road structure, including anti-freeze expansion surface layer of subgrade bed, first layer capillary drainage plate guarded drainage layer, anti-freeze expansion bedding
The water seepage mechanism of bottom, the second layer capillary drainage plate guarded drainage layer and roadbed two sides, the anti-freeze expansion surface layer of subgrade bed, first layer hair
Thin drain bar guarded drainage layer, anti-freeze expansion bottom layer of subgrade and second layer capillary drainage plate guarded drainage layer are from top to bottom arranged successively, institute
It states second layer capillary drainage plate guarded drainage layer to be located on ground, the first layer capillary drainage plate guarded drainage layer and second layer hair
Thin drain bar guarded drainage layer for one layer of PVC capillary drainage plate of folder paving among the medium-sand seam of 0.1m by respectively constituting up and down.
Further, with 1 within the scope of the first layer capillary drainage plate guarded drainage layer left and right ends 1m：2 gradient is oblique
At the above 0.3m of lateral sulcus bottom of trench, longitudinal every 2m is equipped with one on the furrow bank on roadbed one side at the above 0.3m of lateral sulcus bottom of trench
Diameter is the pvc pipe drain hole of 0.1m.
Further, it is 0.3m, thickness that width is respectively provided under first layer capillary drainage plate guarded drainage layer left and right ends
Degree is the C25 concrete anti-seepage layer of 0.1m, and the C25 concrete anti-seepage layer is vertically connected with lateral sulcus furrow bank.
Further, with 1 within the scope of the second layer capillary drainage plate guarded drainage layer left and right ends 1m：3 gradient is oblique
Lower to be connected with water seepage mechanism, the spout elevation at left and right sides of the second layer capillary drainage plate guarded drainage layer may go out lower than construction
Existing minimum pit cheats bottom absolute altitude.
Further, the anti-freeze expansion surface layer of subgrade bed is low by fine particle content, graded broken stone filling technology of good penetrability, described
Fine particle content is less than 5% in graded broken stone, and fills the infiltration coefficient after compacting and be greater than 5 × 10-5m/s。
Further, the anti-freeze expansion bottom layer of subgrade is filled by non-frost heave A, B group filler, non-frost heave A, B group
Fine particle content is less than 5% in filler, and fills the infiltration coefficient after compacting and be greater than 5 × 10-5m/s。
Compared with prior art, the utility model has the beneficial effects that：The present utility model is removed is being frozen using conventional
For junction depth coverage using the insensitive filler of frost heave and outside roadbed two sides setting water seepage mechanism, emphasis is will be in the past in base
Setting composite geo-membrane guarded drainage layer in bed bottom top and the bottom is changed to capillary drainage plate guarded drainage layer, passes through the capillary of capillary drainage plate
Water is effectively discharged except soil structures for effect and siphonage, effectively prevents routine using composite geo-membrane drainage blanket because applying
The road camber often occurred in work is unobvious, freezed in winter frost heave caused by road bed uneven even recessed impeded drainage, disappears
In addition to the influence of the two primary condition, that is, water and heave susceptibility soil of roadbed frost damage, underground water cutting roadbed frost damage is greatly reduced
Harm, engineering is simple, significant effect, has apparent economic results in society.
Detailed description of the invention
Fig. 1 is a kind of underground water cutting location Ballast track high-speed railway anti-freeze expansion provided by the utility model embodiment
Road structure schematic diagram.
In figure：
1, anti-freeze expansion surface layer of subgrade bed；2, first layer capillary drainage plate guarded drainage layer；3, anti-freeze expansion bottom layer of subgrade；4, the second layer
Capillary drainage plate guarded drainage layer；5, ground；6, water seepage mechanism；7, lateral sulcus；8, C25 concrete anti-seepage layer；9, pvc pipe drain hole.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
It clearly and completely describes, it is clear that described embodiment is only the utility model a part of the embodiment, rather than whole realities
Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work
The every other embodiment obtained, fall within the protection scope of the utility model.
Refering to fig. 1, the utility model provides a kind of underground water cutting location Ballast track high-speed railway anti-freeze expansion roadbed knot
Structure, including anti-freeze expansion surface layer of subgrade bed 1, first layer capillary drainage plate guarded drainage layer 2, anti-freeze expansion bottom layer of subgrade 3, the second layer capillary row
The water seepage mechanism 6 of water plate guarded drainage layer 4 and roadbed two sides, the anti-freeze expansion surface layer of subgrade bed 1, first layer capillary drainage plate guarded drainage
Layer 2, anti-freeze expansion bottom layer of subgrade 3 and second layer capillary drainage plate guarded drainage layer 4 are from top to bottom arranged successively, the draining of second layer capillary
Plate guarded drainage layer 4 is located on ground 5, wherein first layer capillary drainage plate guarded drainage layer 2 and the anti-row of second layer capillary drainage plate
Water layer 4 by up and down respectively for 0.1m medium-sand seam among folder paving one layer of PVC capillary drainage plate constitute, anti-freeze expansion surface layer of subgrade bed 1 by
Fine particle content is low, good penetrability graded broken stone filling technology, and fine particle content is less than 5% in graded broken stone, and after filling compacting
Infiltration coefficient be greater than 5 × 10-5m/s；Anti-freeze expansion bottom layer of subgrade 3 is filled by non-frost heave A, B group filler, non-frost heave A, B group
Fine particle content is less than 5% in filler, and fills the infiltration coefficient after compacting and be greater than 5 × 10-5m/s。
With 1 within the scope of the 2 left and right ends 1m of first layer capillary drainage plate guarded drainage layer：2 gradient is oblique down toward lateral sulcus 7
It is 0.1m that longitudinal every 2m, which is equipped with a diameter, on the furrow bank on roadbed one side at the above 0.3m of bottom of trench, at the above 0.3m of 7 bottom of trench of lateral sulcus
Pvc pipe drain hole 9.In addition, being respectively provided with width under 2 left and right ends of first layer capillary drainage plate guarded drainage layer is 0.3m, thickness
Degree is the C25 concrete anti-seepage layer 8 of 0.1m, and C25 concrete anti-seepage layer 8 is vertically connected with 7 furrow bank of lateral sulcus.
With 1 within the scope of the 4 left and right ends 1m of second layer capillary drainage plate guarded drainage layer：3 gradient obliquely with infiltration
French drain 6 is connected, and the spout elevation of 4 left and right sides of second layer capillary drainage plate guarded drainage layer is lower than the most indentation that construction is likely to occur
Hole hole bottom absolute altitude.
A kind of underground water cutting location Ballast track high-speed railway anti-freeze expansion road structure described in the present embodiment is specifically applied
Working hour, bedding range foundation soil are unsatisfactory for all to excavate to change when the insensitive filler requirement of frost heave filling out, and the design depth of freezing is greater than
When thickness of subgrade bed, excavates to change and fill out depth and should reach the design depth of freezing.
Above embodiments are only the exemplary embodiment of the utility model, are not used in limitation the utility model, this is practical new
The protection scope of type is defined by the claims.Those skilled in the art can be in the essence and protection scope of the utility model
It is interior, various modifications or equivalent replacements are made to the utility model, this modification or equivalent replacement also should be regarded as falling in originally practical new
In the protection scope of type.
Claims (6)
1. a kind of underground water cutting location Ballast track high-speed railway anti-freeze expansion road structure, which is characterized in that including anti-freeze expansion
Surface layer of subgrade bed (1), first layer capillary drainage plate guarded drainage layer (2), anti-freeze expansion bottom layer of subgrade (3), second layer capillary drainage plate are anti-
The water seepage mechanism (6) of drainage blanket (4) and roadbed two sides, the anti-freeze expansion surface layer of subgrade bed (1), first layer capillary drainage plate guarded drainage
Layer (2), anti-freeze expansion bottom layer of subgrade (3) and second layer capillary drainage plate guarded drainage layer (4) are from top to bottom arranged successively, and described second
Layer capillary drainage plate guarded drainage layer (4) is located on ground (5), the first layer capillary drainage plate guarded drainage layer (2) and second
Layer capillary drainage plate guarded drainage layer (4) for one layer of PVC capillary drainage plate of folder paving among the medium-sand seam of 0.1m by respectively constituting up and down.
2. Ballast track high-speed railway anti-freeze expansion road structure in a kind of underground water cutting location according to claim 1,
It is characterized in that, with 1 within the scope of first layer capillary drainage plate guarded drainage layer (2) the left and right ends 1m：2 gradient is oblique down toward side
At ditch (7) above 0.3m of bottom of trench, longitudinal every 2m is equipped with one on the furrow bank on roadbed one side at the above 0.3m of lateral sulcus (7) bottom of trench
Diameter is the pvc pipe drain hole (9) of 0.1m.
3. Ballast track high-speed railway anti-freeze expansion road structure in a kind of underground water cutting location according to claim 2,
Be characterized in that, be respectively provided under first layer capillary drainage plate guarded drainage layer (2) left and right ends width be 0.3m, with a thickness of
The C25 concrete anti-seepage layer (8) of 0.1m, the C25 concrete anti-seepage layer (8) are vertically connected with lateral sulcus (7) furrow bank.
4. Ballast track high-speed railway anti-freeze expansion road structure in a kind of underground water cutting location according to claim 1,
It is characterized in that, with 1 within the scope of second layer capillary drainage plate guarded drainage layer (4) the left and right ends 1m：3 gradient obliquely with infiltration
Water french drain (6) is connected, and the spout elevation at left and right sides of the second layer capillary drainage plate guarded drainage layer (4) may go out lower than construction
Existing minimum pit cheats bottom absolute altitude.
5. Ballast track high-speed railway anti-freeze expansion road structure in a kind of underground water cutting location according to claim 1,
It is characterized in that, the anti-freeze expansion surface layer of subgrade bed (1) is low by fine particle content, good penetrability graded broken stone filling technology.
6. Ballast track high-speed railway anti-freeze expansion road structure in a kind of underground water cutting location according to claim 1,
It is characterized in that, the anti-freeze expansion bottom layer of subgrade (3) is filled by non-frost heave A, B group filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820701292.5U CN208167421U (en) | 2018-05-11 | 2018-05-11 | A kind of underground water cutting location Ballast track high-speed railway anti-freeze expansion road structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820701292.5U CN208167421U (en) | 2018-05-11 | 2018-05-11 | A kind of underground water cutting location Ballast track high-speed railway anti-freeze expansion road structure |
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| CN208167421U true CN208167421U (en) | 2018-11-30 |
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| CN201820701292.5U Active CN208167421U (en) | 2018-05-11 | 2018-05-11 | A kind of underground water cutting location Ballast track high-speed railway anti-freeze expansion road structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111304969A (en) * | 2020-03-31 | 2020-06-19 | 中铁二院工程集团有限责任公司 | Anti-bulging structure of ballastless track tramcar on strongly expansive soil or expansive rock section |
| CN113622430A (en) * | 2021-07-16 | 2021-11-09 | 中铁三局集团建筑安装工程有限公司 | Foundation pit bottom overwintering protection structure in seasonal frozen soil area and construction method |
-
2018
- 2018-05-11 CN CN201820701292.5U patent/CN208167421U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111304969A (en) * | 2020-03-31 | 2020-06-19 | 中铁二院工程集团有限责任公司 | Anti-bulging structure of ballastless track tramcar on strongly expansive soil or expansive rock section |
| CN113622430A (en) * | 2021-07-16 | 2021-11-09 | 中铁三局集团建筑安装工程有限公司 | Foundation pit bottom overwintering protection structure in seasonal frozen soil area and construction method |
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