CN206529760U - High-speed railway embankment substrate salinized soil resists molten sunken construction - Google Patents
High-speed railway embankment substrate salinized soil resists molten sunken construction Download PDFInfo
- Publication number
- CN206529760U CN206529760U CN201720163146.7U CN201720163146U CN206529760U CN 206529760 U CN206529760 U CN 206529760U CN 201720163146 U CN201720163146 U CN 201720163146U CN 206529760 U CN206529760 U CN 206529760U
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- China
- Prior art keywords
- embankment
- substrate
- speed railway
- gutter
- salinized soil
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000758 substrate Substances 0.000 title claims abstract description 37
- 239000002689 soil Substances 0.000 title claims abstract description 33
- 238000010276 construction Methods 0.000 title claims abstract description 20
- 238000009937 brining Methods 0.000 claims abstract description 15
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 239000004576 sand Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 239000004568 cement Substances 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- -1 polyethylene Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 238000003325 tomography Methods 0.000 claims 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract description 4
- 239000011780 sodium chloride Substances 0.000 abstract description 4
- 230000002411 adverse Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 150000003839 salts Chemical class 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000010410 layer Substances 0.000 description 4
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- 239000005442 atmospheric precipitation Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000002535 lyotropic effect Effects 0.000 description 2
- 239000005413 snowmelt Substances 0.000 description 2
- 230000001458 anti-acid effect Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000004746 geotextile Substances 0.000 description 1
- 229920006262 high density polyethylene film Polymers 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
High-speed railway embankment substrate salinized soil resists molten sunken construction, to solve the adverse effect of high-speed railway embankment substrate salinized soil collapsible settement generation, can be widely applied to saline soil area high-speed railway embankment construction.Including constructing the embankment on brining ground foundation, embankment both sides side slope toe peripheral hardware puts gutter, substrate insulating course is equipped between the embankment and brining ground foundation, embankment both sides side slope toe is outer to construct the mutual road of back-pressure between the inner side of gutter, and the vertical impermeable wall for entering certain depth in brining ground foundation is set on the outside of gutter.
Description
Technical field
The utility model is related to high-speed railway embankment technology field, more particularly to a kind of high-speed railway embankment substrate salinized soil
Resist molten sunken construction.
Technical background
High-speed railway settlement control requires high, and for railway bed, the collapsible settement of salinized soil is likely to result in line
The uneven pliable aggravation in road, is unfavorable for the safe operation of high-speed railway.The salinized soil with slightly wetland band is being dried just with molten sunken property,
Sough does not have molten sunken problem typically.The determination of molten sunken amount, salt content, saliferous property with foundation soil and is soaked by water
Time, water-mineralizing degree, water size etc. are relevant, and wherein Infiltration is the influence molten sunken principal element of brining ground foundation.
Therefore, the situation of high-speed railway embankment is built for saline soil area, the angle controlled from Infiltration proposes one
Plant high-speed railway embankment substrate salinized soil and resist molten sunken construction, to solve the generation of high-speed railway embankment substrate salinized soil collapsible settement
Adverse effect.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of high-speed railway embankment substrate salinized soil and resists molten sunken structure
Make, to solve the adverse effect of high-speed railway embankment substrate salinized soil collapsible settement generation, can be widely applied to saline soil area
High-speed railway embankment is built.
The technical scheme that the utility model solution above-mentioned technical problem is taken is as follows：
High-speed railway embankment substrate salinized soil of the present utility model resists molten sunken construction, including constructs on brining ground foundation
Embankment, embankment both sides side slope toe peripheral hardware puts gutter, it is characterized in that：Base is equipped between the embankment and brining ground foundation
Bottom insulating course, embankment both sides side slope toe is outer to construct the mutual road of back-pressure between the inner side of gutter, sets and enters on the outside of gutter
The vertical impermeable wall of certain depth in brining ground foundation.
The beneficial effects of the utility model are that the snow-broth of the rainwater or natural snow melt that can effectively extend atmospheric precipitation penetrates into
Path, it is to avoid lyotropic salt is met water and quickly dissolved in the shallow-layer salinized soil of roadbed bottom, causes brining ground foundation to produce molten fall into；With knot
Structure is simple, easy construction, investment reduction, beneficial to features such as environmental protection, in saline soil area, high-speed railway construction applications possess wide
Application prospect.
Brief description of the drawings
Fig. 1 the utility model high-speed railway embankment substrate salinized soil resists the cross-sectional view of molten sunken construction.
Fig. 2 the utility model high-speed railway embankment substrate salinized soil resists substrate insulating course drawing in molten sunken construction.
Fig. 3 the utility model high-speed railway embankment substrate salinized soil resists gutter confining bed and back-pressure in molten sunken construction mutual
The position relationship drawing in road, vertical impermeable wall.
Component, toponym and corresponding mark are shown in figure：Substrate insulating course 1, the first medium-sand seam 1.1 is combined
Geomembrane 1.2, the second medium-sand seam 1.3, embankment 2, the mutual road 3 of back-pressure, gutter 4, inner side confining bed 4.1, outside confining bed
4.2, vertical impermeable wall 5, brining ground foundation D.
Embodiment
The utility model is further illustrated below by specific embodiment and with reference to accompanying drawing.
Reference picture 1, high-speed railway embankment substrate salinized soil of the present utility model resists molten sunken construction, including constructs in salinized soil
Embankment 2 on ground D, the both sides side slope toe peripheral hardware of embankment 2 puts gutter 4.Spread between the embankment 2 and brining ground foundation D
Provided with substrate insulating course 1, the both sides side slope toe of embankment 2 is outer to construct the mutual road 3 of back-pressure between the inner side of gutter 4, in outside gutter 4
Side sets the vertical impermeable wall 5 for entering certain depth in brining ground foundation D.Blocked with substrate insulating course 1 has in brining ground foundation D
The trend that evil salt is migrated to embankment 2, it is to avoid substrate is harmful to the structure of salt corrosion embankment 2, can prevent the moisture in embankment 2 from penetrating into salt marsh
In soil base D.Road is penetrated into the snow-broth of the rainwater or natural snow melt of the mutual road 3 of back-pressure and the extension atmospheric precipitation of vertical impermeable wall 5
Footpath, it is to avoid lyotropic salt is met water and quickly dissolved in the bottom shallow-layer salinized soil of embankment 2, causes the molten sunken change of the substrate salt marsh local products of embankment 2 life
Shape.
Reference picture 1, substrate insulating course 1 from wire center with 4% gradient to both sides symmetrical laying to the mutual slope of road 3 of back-pressure
Pin.
Reference picture 2, it is however generally that, substrate insulating course 1 includes the first medium coarse sand of the 0.1m thickness laid successively from bottom to up
The second layer 1.1, composite geo-membrane 1.2 and 0.1m thick medium-sand seam 1.3.
Composite geo-membrane 1.2 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.
Reference picture 1, embankment 2 is filled in the top of substrate insulating course 1, and embankment 2 includes the embankment sheet set gradually from bottom to up
Body 2.1, bottom layer of subgrade 2.2 and surface layer of subgrade bed 2.3, Technique of Filling Road Bank index should be met《Design of High-speed Railway specification》(TB
10621—2014)。
Berm with superloading 3 is arranged on outside the both sides side slope toe of embankment 2；The top surface width of berm with superloading 3 is not small no less than 3m, height
In 1.0m, the top surface of berm with superloading 3 sets 2% transverse drainage slope；Filler requirement, debulking methods and the embankment sheet in the mutual road 3 of back-pressure
Body 2 is identical.
The vertical impermeable wall 5 can be formed using high pressure jet grouting, or using cement mixing method, plastic concrete
Diaphragm wall, grouting method vertical grouting curtain or vertical channel bury density polyethylene film with high (HDPE film).
Reference picture 3, the mutual road bottom of the inner side confining bed 4.1 of gutter 4 insertion back-pressure, is arranged on the first of substrate insulating course 1
The lower section of medium-sand seam 1.1；The outside confining bed 4.2 of gutter 4 is laid on the top of vertical impermeable wall 5, and extension laying is to away from embankment
It is not less than 0.5m outside the edge of side vertical impermeable wall 5.
Simply use described above illustrates a kind of high-speed railway embankment substrate salinized soil of the utility model and resists molten sunken structure
Some principles made, are not intended to the utility model being confined in shown and described concrete structure and the scope of application, therefore all
It is corresponding modification and the equivalent for being possible to be utilized, belongs to the apllied the scope of the claims of the utility model.
Claims (7)
1. high-speed railway embankment substrate salinized soil resists molten sunken construction, including the embankment (2) constructed on brining ground foundation (D),
Embankment (2) both sides side slope toe peripheral hardware puts gutter (4), it is characterized in that：Spread between the embankment (2) and brining ground foundation (D)
Provided with substrate insulating course (1), embankment (2) both sides side slope toe is outer to construct the mutual road of back-pressure (3) between gutter (4) inner side, in
The vertical impermeable wall (5) for entering brining ground foundation (D) interior certain depth is set on the outside of gutter (4).
2. high-speed railway embankment substrate salinized soil as claimed in claim 1 resists molten sunken construction, it is characterized in that：The substrate cut-off
Layer (1) from wire center with 4% gradient to both sides symmetrical laying to the mutual road of back-pressure (3) toe.
3. resisted molten sunken construction according to the high-speed railway embankment substrate salinized soil as described in claim 2, it is characterized in that：The substrate every
Tomography (1) includes the first medium-sand seam (1.1), composite geo-membrane (1.2) and the 0.1m for the 0.1m thickness laid successively from bottom to up
Thick the second medium-sand seam (1.3).
4. high-speed railway embankment substrate salinized soil as claimed in claim 3 resists molten sunken construction, it is characterised in that：The gutter
(4) the embedded mutual road bottom of back-pressure of inner side confining bed (4.1), is arranged under the first medium-sand seam (1.1) of substrate insulating course (1)
Side；Confining bed (4.2) is laid on above vertical impermeable wall (5) on the outside of gutter (4), and extension laying is vertically prevented to away from embankment side
Ooze and be not less than 0.5m outside wall (5) edge.
5. high-speed railway embankment substrate salinized soil as claimed in claim 1 resists molten sunken construction, it is characterized in that in：The back-pressure is mutual
Road (3) top surface width is no less than 3m, highly not less than 1.0m, and the mutual road of back-pressure (3) top surface sets 2% transverse drainage slope.
6. high-speed railway embankment substrate salinized soil as claimed in claim 1 resists molten sunken construction, it is characterized in that in：It is described vertical anti-
The depth for oozing wall (5) is no less than 4.0m, and 0.5m is no less than apart from gutter (4) edge close to embankment lateral edges.
7. high-speed railway embankment substrate salinized soil as claimed in claim 1 resists molten sunken construction, it is characterized in that in：It is described vertical anti-
Wall (5) is oozed to be formed using high pressure jet grouting, or it is vertical using cement mixing method, plastic concrete diaphragm wall, grouting method
Seepage proof curtain or vertical channel bury density polyethylene film with high.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720163146.7U CN206529760U (en) | 2017-02-22 | 2017-02-22 | High-speed railway embankment substrate salinized soil resists molten sunken construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720163146.7U CN206529760U (en) | 2017-02-22 | 2017-02-22 | High-speed railway embankment substrate salinized soil resists molten sunken construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206529760U true CN206529760U (en) | 2017-09-29 |
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ID=59919989
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720163146.7U Expired - Fee Related CN206529760U (en) | 2017-02-22 | 2017-02-22 | High-speed railway embankment substrate salinized soil resists molten sunken construction |
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| CN (1) | CN206529760U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108842748A (en) * | 2018-06-25 | 2018-11-20 | 四川省场道工程有限公司 | A kind of processing of road in airport salinized soil and control method |
| CN109033624A (en) * | 2018-07-24 | 2018-12-18 | 中铁二院工程集团有限责任公司 | The measuring method of the molten sunken amount of brining ground foundation under a kind of embankment |
| CN109086512A (en) * | 2018-07-24 | 2018-12-25 | 中铁二院工程集团有限责任公司 | A kind of measuring method of the molten sunken amount in salinized soil cutting bedding bottom |
| CN111101413A (en) * | 2020-02-03 | 2020-05-05 | 甘肃省公路工程质量试验检测中心有限公司 | Device and construction method applied to saline soil subgrade in seasonal frozen soil area |
-
2017
- 2017-02-22 CN CN201720163146.7U patent/CN206529760U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108842748A (en) * | 2018-06-25 | 2018-11-20 | 四川省场道工程有限公司 | A kind of processing of road in airport salinized soil and control method |
| CN109033624A (en) * | 2018-07-24 | 2018-12-18 | 中铁二院工程集团有限责任公司 | The measuring method of the molten sunken amount of brining ground foundation under a kind of embankment |
| CN109086512A (en) * | 2018-07-24 | 2018-12-25 | 中铁二院工程集团有限责任公司 | A kind of measuring method of the molten sunken amount in salinized soil cutting bedding bottom |
| CN109086512B (en) * | 2018-07-24 | 2022-07-29 | 中铁二院工程集团有限责任公司 | Method for measuring and calculating bottom settlement of salinized soil road cut foundation bed |
| CN109033624B (en) * | 2018-07-24 | 2022-11-11 | 中铁二院工程集团有限责任公司 | Method for measuring and calculating amount of saline soil foundation settlement under embankment |
| CN111101413A (en) * | 2020-02-03 | 2020-05-05 | 甘肃省公路工程质量试验检测中心有限公司 | Device and construction method applied to saline soil subgrade in seasonal frozen soil area |
| CN111101413B (en) * | 2020-02-03 | 2025-02-21 | 甘肃省公路工程质量试验检测中心有限公司 | A device and construction method for saline soil roadbed in seasonal frozen soil areas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170929 |