CN207130544U - In strong saline soil area headchute partition-type non-fragment orbit cutting foundation bed structure - Google Patents
In strong saline soil area headchute partition-type non-fragment orbit cutting foundation bed structure Download PDFInfo
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- CN207130544U CN207130544U CN201720095546.9U CN201720095546U CN207130544U CN 207130544 U CN207130544 U CN 207130544U CN 201720095546 U CN201720095546 U CN 201720095546U CN 207130544 U CN207130544 U CN 207130544U
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- Prior art keywords
- bedding
- french drain
- salt discharge
- headchute
- partition
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- 239000002689 soil Substances 0.000 title claims abstract description 40
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 title claims abstract description 35
- 239000011780 sodium chloride Substances 0.000 title claims abstract description 35
- 239000012634 fragment Substances 0.000 title claims abstract description 29
- 150000003839 salts Chemical class 0.000 claims abstract description 50
- 230000008595 infiltration Effects 0.000 claims abstract description 32
- 238000001764 infiltration Methods 0.000 claims abstract description 32
- 239000000758 substrate Substances 0.000 claims abstract description 18
- 239000004576 sand Substances 0.000 claims description 12
- 239000002131 composite material Substances 0.000 claims description 7
- 239000004575 stone Substances 0.000 claims description 7
- 239000012528 membrane Substances 0.000 claims description 6
- 230000001458 anti-acid effect Effects 0.000 claims description 5
- 239000003518 caustics Substances 0.000 claims description 5
- 230000007797 corrosion Effects 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 claims description 5
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- 239000011449 brick Substances 0.000 claims description 2
- 239000011083 cement mortar Substances 0.000 claims description 2
- 239000004570 mortar (masonry) Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 239000010410 layer Substances 0.000 abstract description 23
- 239000002344 surface layer Substances 0.000 abstract description 6
- 230000004888 barrier function Effects 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000013461 design Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- 230000001012 protector Effects 0.000 description 3
- 238000003325 tomography Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000009937 brining Methods 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000004746 geotextile Substances 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- 238000000638 solvent extraction Methods 0.000 description 1
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Abstract
In strong saline soil area headchute partition-type non-fragment orbit cutting foundation bed structure, the technical barrier faced is designed with strong saline soil area ballastless track of high-speed railway cutting in solution, meets ballastless track of high-speed railway Deformation control, life requirement.It includes：Inverted L shape overcoat, it is arranged on bedding and excavates in the side slope of both sides；Longitudinal direction infiltration salt discharge french drain, is arranged at the inverted L shape overcoat toe of bedding both sides；Substrate insulating course, it is arranged on above bedding bottom surface and longitudinal direction infiltration salt discharge french drain；Lay structure sheaf under bottom layer of subgrade, structure sheaf, bedding insulating course, surface layer of subgrade bed on bottom layer of subgrade above substrate insulating course successively from bottom to up；Gutter, it is arranged on structure sheaf both sides on bottom layer of subgrade.
Description
Technical field
The utility model is related to ballastless track of high-speed railway roadbed technical field, more particularly in-strong saline soil area ship
Groove partition-type non-fragment orbit cutting foundation bed structure.
Background technology
With the Belt and Road strategy implementation, it is overseas imperative that China Railway High-speed is walked out, however, high-speed iron in overseas
Road engineering design is still faced with various complex geological conditions, and salinized soil is exactly one of them.Salinized soil is a kind of with difference
The general designation of the degree salinization of soil soil body, in various countries, arid, semiarid zone and sea front are widely distributed.Salinized soil is by salt content point
Class includes：Weak, medium, strong, over-salted soil, the saline soil area of large area is related in China's the Belt and Road development plan, especially
In being-strong salinized soil.
In general, in the range of non-fragment orbit cutting bedding-strong salinized soil salt content, salt is swollen, the molten mechanical characteristic such as fall into
Be difficult to meet Subgrade bed design requirement, it is necessary to take change fill out, the measure such as foundation improvement is handled；Secondly, High Speed Railway position is past
Toward salt matter desert is passed through, salt-free high-quality roadbed filling is most deficient along the line；In non-fragment orbit on the other hand ,-strong salinized soil
Cutting bedding should have long-term anti-salination function.Above-mentioned problem into saline soil area at a high speed the problem without tiny fragments of stone, coal, etc. roadbed design,
There is an urgent need to open one's minds, innovative approach propose it is a kind of it is new in-strong salinized soil cutting foundation bed structure, and meet environmental protection will
Ask.
Utility model content
Technical problem to be solved in the utility model is to provide in one kind-and strong saline soil area headchute partition-type is without tiny fragments of stone, coal, etc. rail
Road cutting foundation bed structure, with solution-technical barrier that faces of strong saline soil area ballastless track of high-speed railway cutting design, it is full
Sufficient ballastless track of high-speed railway Deformation control, life requirement.
Technical scheme used by the utility model solves above-mentioned technology is as follows：
In of the present utility model-strong saline soil area headchute partition-type non-fragment orbit cutting foundation bed structure, it is characterized in that it
Including：Inverted L shape overcoat, it is arranged on bedding and excavates in the side slope of both sides；Longitudinal direction infiltration salt discharge french drain, is arranged at bedding both sides inverted L
At type overcoat toe；Substrate insulating course, it is arranged on above bedding bottom surface and longitudinal direction infiltration salt discharge french drain；Above substrate insulating course
Lay structure sheaf under bottom layer of subgrade, structure sheaf, bedding insulating course, surface layer of subgrade bed on bottom layer of subgrade successively from bottom to up；Gutter,
It is arranged on structure sheaf both sides on bottom layer of subgrade.
The beneficial effects of the utility model are, in effectively solving-strong saline soil area non-fragment orbit cutting foundation bed structure
Design the technical barrier faced.At home and abroad take the lead in releasing-strong saline soil area headchute partition-type non-fragment orbit cutting base
Bed structure, cutting bedding effectively is filled using Coarse Saline, timely white-out cutting substrate richness salt, avoids bedding Secondary salinization
Change；There is structure novelty, safe and reliable, investment reduction, construction is simple, in meeting-strong saline soil area high speed nothing
The control of tiny fragments of stone, coal, etc. railway deformation requires.
Brief description of the drawings
This specification includes following six width accompanying drawing：
Fig. 1 is in the utility model-sectional drawing of strong saline soil area headchute partition-type non-fragment orbit cutting foundation bed structure；
Fig. 2 is in the utility model-strong saline soil area headchute partition-type non-fragment orbit cutting foundation bed structure in longitudinally ooze
The drawing of water salt discharge french drain；
Fig. 3 is in the utility model-strong saline soil area headchute partition-type non-fragment orbit cutting foundation bed structure in laterally ooze
The structural representation of water salt discharge french drain；
Fig. 4 is in the utility model-strong saline soil area headchute partition-type non-fragment orbit cutting foundation bed structure in substrate every
The drawing of tomography；
Fig. 5 is in the utility model-strong saline soil area headchute partition-type non-fragment orbit cutting foundation bed structure in bedding every
The drawing of tomography.
Fig. 6 is in the utility model-strong saline soil area headchute partition-type non-fragment orbit cutting foundation bed structure in bedding every
Tomography and shoulder protector, the position relationship schematic diagram in gutter.
Component, toponym and corresponding mark are shown in figure：Inverted L shape overcoat 1, seep water salt discharge french drain 2 for longitudinal direction, modeling
Expect blind pipe or PVC floral tubes 2.1, clean rubble 2.2, substrate insulating course 3, metalling 3.1, the first medium-sand seam 3.2, composite earthwork
Film 3.3, the second medium-sand seam 3.4, structure sheaf 4 under bottom layer of subgrade, structure sheaf 5, bedding insulating course 6, bedding table on bottom layer of subgrade
Layer 7, gutter 8, shoulder protector 9, laterally seep water salt discharge french drain 10, reinforced concrete sewer pipe 10.1, clean rubble 10.2.
Embodiment
The utility model is further illustrated below by specific embodiment and with reference to accompanying drawing.
With reference to figure 1, in-strong saline soil area headchute partition-type non-fragment orbit cutting foundation bed structure, it includes：Inverted L shape is prevented
Sheath 1, it is arranged on bedding and excavates in the side slope of both sides；Longitudinal direction infiltration salt discharge french drain 2, is arranged at bedding both sides inverted L shape overcoat slope
At pin；Substrate insulating course 3, it is arranged on bedding bottom surface and the top of longitudinal direction infiltration salt discharge french drain 2；The top of substrate insulating course 3 from it is lower to
On lay structure sheaf 4 under bottom layer of subgrade, structure sheaf 5, bedding insulating course 6, surface layer of subgrade bed 7 on bottom layer of subgrade successively；Gutter 8,
It is arranged on structure sheaf both sides on bottom layer of subgrade.
In such scheme：
Inverted L shape overcoat 1 is built by laying bricks or stones using mortar flag stone, and thickness is not less than 0.3m, and slope gradient is not less than 1:0.75, it is used
Cement mortar should have antiacid caustic corrosion performance.
With reference to figure 2, longitudinal direction infiltration salt discharge french drain 2 uses trapezoid-shaped trench, and ditch depth is more than 0.3m, and bottom width is not less than 0.3m, both sides
Ratio of slope is 1:1, head fall is not less than 3 ‰, and one-way slope length is not more than 200m；The delivery port of longitudinal direction infiltration salt discharge french drain 2 should draw
Enter embankment location gutter or laterally infiltration salt discharge french drain 10；Laterally the bottom of trench elevation of infiltration salt discharge french drain 10 is at least than longitudinal infiltration
The elevation of salt discharge french drain 2 low a, a are the ditch depth of longitudinal direction infiltration salt discharge french drain 2.
Longitudinal direction infiltration salt discharge french drain 2 is placed in using the plastics blind pipe or PVC floral tubes 2.1 of diameter 80mm antiacid caustic corrosion
Bottom of trench overcentre, other positions of longitudinal direction infiltration salt discharge french drain 2 are filled using clean rubble 2.2.
With reference to figure 3, the salt discharge french drain 10 that laterally seeps water uses trapezoid-shaped trench, and ditch depth is more than 0.6m, and bottom width is not less than 0.6m, both sides
Ratio of slope 1:1；Laterally infiltration salt discharge french drain 10 is arranged on cutting bedding bottom, and cross fall is not less than 2%；Laterally infiltration salt discharge is blind
The delivery port of ditch 10 is arranged on back of the body versant, and delivery port elevation is at least higher 1m than century-old flood level elevation.
Laterally infiltration salt discharge french drain 10 is placed in bottom of trench overcentre using diameter 200mm reinforced concrete sewer pipes 10.1,
Laterally other positions of infiltration salt discharge french drain are filled using clean rubble 10.2.
Substrate insulating course 3 from wire center with 4% gradient to both sides symmetrical laying；With reference to figure 4, substrate insulating course 3 wraps
Include the first thick medium-sand seam 3.2 of the thick metallings 3.1 of the 0.2m laid successively from bottom to up, 0.05m, composite geo-membrane 3.3
And the second medium-sand seam 3.4 that 0.1m is thick.
Composite geo-membrane 3.3 uses the film of two cloth one (up and down for nonwoven permeable geotextiles, centre is water proof geomembrane), should
With antiacid caustic corrosion performance, weight is not less than 800g/m2, breadth is not less than 7.0m, and vertically and horizontally tensile strength is not less than 25kN/
M, CBR bursting strength are not less than 3.6kN/m, and maximum elongation percentage is not more than 30%, and tearing resistance is not less than 0.6kN, resistance to hydrostatic pressure
Not less than 0.6MPa；Infiltration coefficient is not more than 10-11cm/s；Geotechnological film thickness is not less than 0.5mm, and the overlap joint between width and width is wide
Degree is not less than 0.3m.
Structure sheaf 4 is arranged on the top of substrate insulating course 3 under bottom layer of subgrade, under bottom layer of subgrade structure sheaf 4 by maximum particle diameter not
Filled more than the Coarse Saline of 6cm and fine particle content no more than 5%, Coarse Saline and construction water it is easy
Dissolved salt content summation is not more than 1.5%, and other technologies index should meet《Design of High-speed Railway specification》(TB 10621—2014).
Structure sheaf 5 is arranged on the top of structure sheaf 4 under bottom layer of subgrade on bottom layer of subgrade, and structure sheaf 5 is by by most on bottom layer of subgrade
Big particle diameter is filled no more than the Coarse Saline of 6cm and fine particle content no more than 5%, Coarse Saline and construction
It is not more than 0.3% with the soluble salt content summation of water, other technologies index should meet《Design of High-speed Railway specification》(TB
10621—2014)。
Bedding insulating course 6 carries out symmetrical laying from wire center to both sides by 4% gradient.With reference to figure 5, bedding cut-off
Layer 6 include the first thick medium-sand seam 6.1 of the 0.05m that sets gradually from bottom to up, composite geo-membrane 6.2 and 0.1m it is thick second
Medium-sand seam 6.3.
The thickness summation of structure sheaf 5 and bedding insulating course 6 cannot be less than 1.0m on bottom layer of subgrade.
Surface layer of subgrade bed 7 is arranged on the top of bedding insulating course 6, surface layer of subgrade bed 7 using not saliferous natural pebble or sand gravel simultaneously
Mix 3% (weight ratio) cement to be filled, the thickness of bottom layer of subgrade 7 is 0.4m；Other technologies index should meet《Design of High-speed Railway
Specification》(TB 10621—2014).
The bottom width of gutter 8 is no less than 0.6m, and ditch depth is not less than 0.6m；Gutter 8 should have acid-alkali-corrosive-resisting performance.
With reference to figure 6, the bottom surface of shoulder protector 9 is arranged on the top of the second medium-sand seam 6.3 of bedding insulating course 6, the confining bed of gutter 8
8.1 top surfaces are arranged on the lower section of composite geo-membrane 6.2 of bedding insulating course 6.
The utility model has the advantage of：
(1) the utility model is provided with headchute partition-type system, and inverted L shape overcoat 1 can be prevented in bedding both sides-strong salinized soil
Reclaimed water salt invades bedding, substrate insulating course 3 then blocked in-strong brining ground foundation is harmful to salt and migrated to non-fragment orbit bedding, base
Bed insulating course 5 has blocked the trend that bottom layer of subgrade salinity migrates to surface layer of subgrade bed；The above-mentioned 3 kinds of cut-offs measure of integrated use, can keep away
Exempt from foundation bed structure and produce salt damage.
(2) the utility model, which is provided with, dredges salt system, effectively utilizes longitudinal direction infiltration salt discharge french drain 2 and the salt discharge french drain that laterally seeps water
10 exclude substrate richness salt in time, and the stifled thin function having both is formd with partitioning system.
(3) the utility model takes structure sheaf 4 and bedding bottom under the bottom layer of subgrade of different soluble salt content norm controllings
Structure sheaf 5 on layer, it can effectively control harm of the Coarse Saline expansion displacement to ballastless track structure.
(4) during the utility model proposes first-strong saline soil area headchute partition-type non-fragment orbit cutting foundation bed structure, if
Clear process is counted, construction method is clear and definite, promotes new ballastless track roadbed structural development, not only has stronger push away at home
Wide application value, can also solve the technical barrier that Chinese high ferro going global faces.
It is described above simply using illustrating in the utility model-strong saline soil area headchute partition-type non-fragment orbit road
Some principles of moat foundation bed structure, it is not intended to for the utility model to be confined to shown and described concrete structure and the scope of application
It is interior, therefore every corresponding modification for being possible to be utilized and equivalent, belong to the apllied the scope of the claims of the utility model.
Claims (7)
- In 1.-strong saline soil area headchute partition-type non-fragment orbit cutting foundation bed structure, it is characterized in that it includes：Inverted L shape protects Layer (1), it is arranged on bedding and excavates in the side slope of both sides；Longitudinal direction infiltration salt discharge french drain (2), is arranged at bedding both sides inverted L shape overcoat At toe；Substrate insulating course (3), it is arranged on above bedding bottom surface and longitudinal direction infiltration salt discharge french drain (2)；On substrate insulating course (3) Lay structure sheaf (4) under bottom layer of subgrade, structure sheaf (5), bedding insulating course (6), bedding on bottom layer of subgrade successively from bottom to up in side Top layer (7)；Gutter (8), is arranged on structure sheaf both sides on bottom layer of subgrade.
- 2. in as claimed in claim 1-and strong saline soil area headchute partition-type non-fragment orbit cutting foundation bed structure, its feature It is：The inverted L shape overcoat (1) is built by laying bricks or stones using mortar flag stone, and thickness is not less than 0.3m, and slope gradient is not less than 1:0.75, institute There should be antiacid caustic corrosion performance with cement mortar.
- 3. in as claimed in claim 1-and strong saline soil area headchute partition-type non-fragment orbit cutting foundation bed structure, its feature It is：The longitudinal direction infiltration salt discharge french drain (2) uses trapezoid-shaped trench, and ditch depth is more than 0.3m, and bottom width is not less than 0.3m, and both sides ratio of slope is 1: 1, head fall is not less than 3 ‰, and one-way slope length is not more than 200m；Described longitudinal direction infiltration salt discharge french drain (2) delivery port should introduce Embankment location gutter or laterally infiltration salt discharge french drain (10)；The laterally infiltration salt discharge french drain (10) uses trapezoid-shaped trench, ditch depth More than 0.6m, bottom width is not less than 0.6m, and both sides ratio of slope is 1:1；The laterally infiltration salt discharge french drain (10) is arranged on cutting bedding Bottom, cross fall are not less than 2%, and delivery port is arranged on back of the body versant, and delivery port elevation is at least higher 1m than century-old flood level elevation.
- 4. in as claimed in claim 3-strong saline soil area headchute partition-type non-fragment orbit cutting foundation bed structure, it is characterized in that In：The longitudinal direction infiltration salt discharge french drain (2) by diameter 80mm antiacid caustic corrosion plastics blind pipe or PVC floral tubes (2.1) and clean Net rubble (2.2) is formed, the laterally infiltration salt discharge french drain (10) by diameter 200mm reinforced concrete sewer pipes (10.1) with it is clean Net rubble (10.2) is formed；Described laterally infiltration salt discharge french drain (10) bottom of trench elevation is at least higher than longitudinal direction infiltration salt discharge french drain (2) Journey low a, a are longitudinal direction infiltration salt discharge french drain (2) ditch depth.
- 5. in as claimed in claim 1-and strong saline soil area headchute partition-type non-fragment orbit cutting foundation bed structure, its feature It is：The substrate insulating course (3) is included from wire center with 4% gradient to both sides symmetrical laying, the substrate insulating course (3) Metalling (3.1), the first medium-sand seam (3.2), the composite geo-membrane of 0.05m thickness for the 0.2m thickness laid successively from bottom to up And thick the second medium-sand seams (3.4) of 0.1m (3.3).
- 6. in as claimed in claim 1-and strong saline soil area headchute partition-type non-fragment orbit cutting foundation bed structure, its feature It is：The bedding insulating course (6) carries out symmetrical laying from wire center to both sides by 4% gradient, including from bottom to up successively The second medium-sand seam (6.3) thick the first medium-sand seam (6.1), composite geo-membrane (6.2) and the 0.1m thick 0.05m of setting； The thickness summation of structure sheaf (5) and bedding insulating course (6) is not less than 1.0m on the bottom layer of subgrade.
- 7. in as claimed in claim 1-and strong saline soil area headchute partition-type non-fragment orbit cutting foundation bed structure, its feature It is：Gutter (8) bottom width is no less than 0.6m, and ditch depth is not less than 0.6m；Gutter (8) has acid-alkali-corrosive-resisting performance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720095546.9U CN207130544U (en) | 2017-01-22 | 2017-01-22 | In strong saline soil area headchute partition-type non-fragment orbit cutting foundation bed structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720095546.9U CN207130544U (en) | 2017-01-22 | 2017-01-22 | In strong saline soil area headchute partition-type non-fragment orbit cutting foundation bed structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207130544U true CN207130544U (en) | 2018-03-23 |
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ID=61630256
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720095546.9U Expired - Fee Related CN207130544U (en) | 2017-01-22 | 2017-01-22 | In strong saline soil area headchute partition-type non-fragment orbit cutting foundation bed structure |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110195379A (en) * | 2019-05-17 | 2019-09-03 | 中铁二院工程集团有限责任公司 | Consider non-fragment orbit coarse grain salt marsh dirt road embankment structure and construction method that violent temperature influences |
-
2017
- 2017-01-22 CN CN201720095546.9U patent/CN207130544U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110195379A (en) * | 2019-05-17 | 2019-09-03 | 中铁二院工程集团有限责任公司 | Consider non-fragment orbit coarse grain salt marsh dirt road embankment structure and construction method that violent temperature influences |
| CN110195379B (en) * | 2019-05-17 | 2023-09-22 | 中铁二院工程集团有限责任公司 | Ballastless track coarse-grain salty soil embankment structure considering severe air temperature influence and construction method |
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Granted publication date: 20180323 |