CN107675714A - Roadbed side slope and its construction method - Google Patents
Roadbed side slope and its construction method Download PDFInfo
- Publication number
- CN107675714A CN107675714A CN201710706517.6A CN201710706517A CN107675714A CN 107675714 A CN107675714 A CN 107675714A CN 201710706517 A CN201710706517 A CN 201710706517A CN 107675714 A CN107675714 A CN 107675714A
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- side slope
- roadbed
- soil
- geomembrane
- soil block
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention provides a kind of roadbed side slope, and it includes side slope body, and the side slope body is stepped；Geomembrane, the geomembrane are arranged on the ladder tread of stepped side slope body；Soil block, soil block are arranged on the geomembrane, and geotextiles are provided with soil block.Highway subgrade slope is related into a ladder, the geomembrane that the anti-water barrier materials of high molecular polymer are formed is laid on side slope step again, effectively prevent rainwater from penetrating into soil, it ensure that the steadiness in this specific region highway subgrade, then on the geomembrane that the anti-water barrier materials of high molecular polymer are formed, the soil block that laying is wrapped up with flexible geotextiles, finally using planting soil covering step, and ultimately form domatic, vegetation is planted on planting soil again, it is finally reached and resists the purpose that natural precipitation and slope runoff wash away, vegetation also plays certain reinforcement effect to the earthwork and roadbed simultaneously.
Description
Technical field
The present invention relates to roadbed side slope technical field, specifically, is related to a kind of roadbed side slope and its construction method.
Background technology
Highway subgrade slope, refer to that, to ensure subgrade stability, that is made in roadbed both sides has the domatic of certain slope.
Natural cause and the side slope such as the construction of the roadbed side slope gradient, soil property, geological structure (cutting) and hydrologic condition depending on side slope
Height.On abrupt slope or the larger section of digging is filled out, grade of side slope not only has influence on the difficulty or ease of earthwork volume and construction, and
It is the key of roadbed resistance to overturning.Accordingly, it is determined that grade of side slope for roadbed stability and engineering economic rationality extremely
Close important.
Because of extraneous rain drop erosion and the effect of strong wind weather weathering, it can all accelerate the damage of side slope, and roadbed side slope
Quality safety that is impaired then further having had influence on roadbed and road surface, the safety of driving and road traffic is eventually affected, simultaneously
These damages are also along with the increase year by year of highway maintenance cost.Therefore the important ring as highway subgrade quality assurance, road
The quality of base side slope needs to obtain enough attention.
The road construction in collapsible loess and high liquid limit soil area in recent years, because the characteristic of its soil property turns into new problem：
1) collapsible loess is a kind of soil of special nature, and its soil property is more uniform, short texture, pores'growth.Not by
During water-soaked, common intensity is higher, and compressibility is smaller.When that can be destroyed rapidly by water-soaked, soil structure under a certain pressure, produce
Larger additional sinking, intensity reduce rapidly.Therefore highway construction is carried out on Site of Collapsible Loess, should be according to ground by water-soaked
The size of possibility and the Stringency limited during use differential settlement, take the synthesis based on basement process to arrange
Apply, prevent damp sink of foundation from producing harm to building；
2) high liquid limit soil, refer to that the granule content less than 0.075mm is more than 50%, liquid limit and is more than 50%, plasticity index is big
In 26 soil.High liquid limit clay water stability is poor, meets water and easily expands softening, and drying shrinkage is understood in dehydration, and because its soil particle is tiny, capillary
Rise waterborne is big, can destroy the stability of roadbed, so cannot be directly used to roadbed filling.Slope project is to high liquid limit at present
The mode that soil is taken be with reference to swelled ground carry out, except with water-swellable, dehydration shrinkage feature in addition to, main spy
Sign is that high liquid limit soil compactibility is poor, and the native compressibility after overcompaction is still larger, and has obvious strain softening.
Based on foregoing description, needing using collapsible loess and high liquid limit soil come filling roadbed area, above two
Change of the engineering property to banket to moisture content is more sensitive, it is necessary to carry out waterproof and supporting to roadbed side slope in subgrade construction
Respective handling.In addition, generally first used in being constructed under the prior art to the roadbed side slope of collapsible loess and high liquid limit soil
Thick clay bound edge, then protected with barnacle barricade, the protective action that such means of defence can play is limited, and needs big
Amount is excavated to meet that the engineering to the earthwork and the needs of stone, also causes no small while adding construction cost to environment
Destroy.
In view of this, a kind of new roadbed side slope should be provided, to solve the above-mentioned problems in the prior art.
The content of the invention
In order to solve the above-mentioned technical problem the present invention makes, the purpose is to provide one kind in collapsible loess and height
Liquid limit soil area carries out highway subgrade slope construction, can substantially improve the roadbed constructed in the case of above-mentioned soil property and roadbed side
The water resistance and overall stability on slope so that roadbed and highway quality itself are effectively extended, meanwhile, reduce prior art
Fill the roadbed side slope and its construction method of destruction of the mode to environment.
To achieve these goals, the invention provides a kind of roadbed side slope, it includes side slope body, and the side slope body is in
It is stepped；Geomembrane, the geomembrane are layed on the ladder tread of the side slope body；Soil block, the soil block are arranged at described
On geomembrane, each soil block is wrapped up by geotextiles.
Preferably, the width of the stair-stepping side slope body can highly may be used in the range of 40 centimetres to 100 centimetres
With in the range of 20 centimetres to 50 centimetres.
Preferably, the geomembrane can be made up of the anti-water barrier materials of high molecular polymer.
Preferably, the geotextiles can be flexible chemical fiber fabric.
Preferably, backfill can also have been filled on the soil block, kind is implanted with vegetation in the backfill.
It is further preferred that the backfill can be formed as domatic.
Preferably, all soil block of relative set one on each ladder of the side slope body.
Accordingly, present invention also offers a kind of roadbed side slope construction method, method includes filling stair-stepping side slope sheet
Body；Geomembrane is laid on the step of stair-stepping side slope body；And using geotextiles parcel soil block, and wrapped multiple
Soil block be positioned on the geomembrane on the side slope body step.
Preferably, the height and width of the side slope body can be adjusted according to the grade of side slope of roadbed.
Preferably, backfill is filled on the soil block, can be planted in the backfill and be implanted with vegetation.
Understood as described above with practice, roadbed side slope of the present invention and its construction method, according to settlement by soaking
Loess and the soil property in high liquid limit soil area, highway subgrade slope are related into a ladder, then height is laid on side slope step
The geomembrane that the anti-water barrier materials of Molecularly Imprinted Polymer are formed, effectively prevents rainwater from penetrating into soil, ensure that specific at this
The steadiness of Regional Road roadbed, then on the geomembrane that the anti-water barrier materials of high molecular polymer are formed, laying is with having
The soil block of the geotextiles parcel of elasticity, plays the reinforcing road bed supporting effect of stone-laying, finally covers step using planting soil, and most
End form is into domatic, then vegetation is planted on planting soil, is finally reached and resists the purpose that natural precipitation and slope runoff wash away, simultaneously
Vegetation also plays certain reinforcement effect to the earthwork and roadbed, solves under prior art, in collapsible loess and high liquid limit
Technical problem present in the construction of the highway of soil area.Also, roadbed side slope of the present invention is only made up of soil, stone can be saved
Material.
Brief description of the drawings
Fig. 1 is schematic diagram, shows the roadbed side slope described in one embodiment of the present of invention；
Fig. 2 is flow chart, shows roadbed side slope construction method of the present invention.
Embodiment
The embodiment of roadbed side slope of the present invention and its construction method described below with reference to the accompanying drawings.This area
Those of ordinary skill will recognize, without departing from the spirit and scope of the present invention, can use a variety of sides
Formula is modified to described embodiment.Therefore, accompanying drawing and description are inherently illustrative, rather than for limiting power
The protection domain that profit requires.In addition, in this manual, accompanying drawing is drawn not in scale, and identical reference represents phase
Same part.
Fig. 1 is schematic diagram, shows the roadbed side slope described in one embodiment of the present of invention.It is as shown in figure 1, of the invention
The embodiment described in roadbed side slope include side slope body 1.Side slope body 1 fills into a ladder, common, side slope body 1
Width in the range of 40 centimetres to 100 centimetres, highly in the range of 20 centimetres to 50 centimetres, in practice of construction, according to
Construct specific grade of side slope, the width and height of stepped side slope body 1 can be adjusted, needed with adapting it to different constructions
Will.In addition, in this embodiment of the invention, side slope body 1 can be arranged to level Four ladder, in the other embodiment of the present invention
In, can be according to the soil property situation and construction environment situation of Specific construction, the step number of change side slope body 1, but the present invention
Embodiment not limited to this.
Geomembrane 2 is equipped with side slope body 1.Geomembrane 2 uses the anti-water barrier materials of high molecular polymer, and it covers side
The surface of multi-stage stairs on slope body 1.Geomembrane 2 can effectively prevent natural precipitation and slope runoff from penetrating into roadbed side slope
Inside, especially so have the area of requirements at the higher level to waterproof in collapsible loess and high liquid limit soil, geomembrane can be effective
Ground enhances the steadiness of highway subgrade slope, while also ensure that the construction quality of highway.
Soil block 3 is provided with geomembrane 2, soil block 3 is wrapped up using geotextiles 4, on each step of side slope body 1 all
The soil block 3 of relative set one.Geotextiles 4 use flexible chemical fiber fabric.Geotextiles 4 have certain elasticity so that ensure soil
While block 5 is constrained by geotextiles 4, the integrated carrying ability of soil block 3 can be effectively improved, serves the effect of stone-laying.
Planting soil 5 can also have been filled on soil block 3, vegetation can have been planted on planting soil 5, eventually form integer support body
System, the support system can plant side slope vegetation, by the way that dwarf plant is planted or transplanted on roadbed side slope, side slope is banketed and sky
A kind of natural plant space is formed between gas, so as to reach the purpose resisted natural precipitation and slope runoff and washed away, while by
Banketed top layer in root system of plant depth people, the purpose for consolidated soil can be played, preventing soil loss.Conventional side slope vegetation species
There are flowers and plants, liana (such as packing grass), the xylophyta (such as Chinese ilex) and herbaceous plant (such as Asiatic plantain) of short life, plant
Selection should suit measures to local conditions, be adapted to plant growth weather.
Accordingly, based on roadbed side slope described above, the invention provides the construction method of roadbed side slope.Fig. 2 is stream
Cheng Tu, show roadbed side slope construction method of the present invention.To be applied as shown in Fig. 2 the invention provides a kind of roadbed side slope
Work method, method include：Stair-stepping side slope body is filled first；Geotechnique is then laid on the step of stepped side slope body
Film；Again using geotextiles parcel soil block, and multiple soil blocks wrapped are positioned over the geomembrane on the side slope body step
On；Finally planting soil is backfilled on the soil block.Wherein, planting soil can cover soil block, and ultimately form domatic, then plant
Vegetation is planted on soil, side slope is banketed and a kind of natural plant space is formed between air, natural precipitation is resisted so as to reach
The purpose washed away with slope runoff, the top layer simultaneously because root system of plant depth people bankets, can play consolidated soil, prevent soil stream
The purpose of mistake.
The roadbed side slope of the present invention is suitable as the roadbed side slope of highway, it is also possible to makees the roadbed of railway or other roads
Side slope.
Understood as described above with practice, roadbed side slope of the present invention and its construction method, according to settlement by soaking
Loess and the soil property in high liquid limit soil area, highway subgrade slope are related into a ladder, then height is laid on side slope step
The geomembrane that the anti-water barrier materials of Molecularly Imprinted Polymer are formed, effectively prevents rainwater from penetrating into soil, ensure that specific at this
The steadiness of Regional Road roadbed, then on the geomembrane that the anti-water barrier materials of high molecular polymer are formed, laying is with having
The soil block of the geotextiles parcel of elasticity, plays the reinforcing road bed supporting effect of stone-laying, finally covers step using planting soil, and most
End form is into domatic, then vegetation is planted on planting soil, is finally reached and resists the purpose that natural precipitation and slope runoff wash away, simultaneously
Vegetation also plays certain reinforcement effect to the earthwork and roadbed, solves under prior art, in collapsible loess and high liquid limit
Waterproof present in the construction of the highway of soil area is difficult, soil property meets water deformation and needs largely to excavate to fill to be asked with technologies such as soil
Topic.
Described in an illustrative manner according to roadbed side slope of the present invention and its construction method above with reference to accompanying drawing.But
It is, can also be it will be appreciated by those skilled in the art that the roadbed side slope and its construction method that are proposed for the invention described above
Do not depart from and make various improvement on the basis of present invention.Therefore, protection scope of the present invention should be wanted by appended right
The content of book is asked to determine.
Claims (10)
1. a kind of roadbed side slope, it is characterised in that the roadbed side slope includes：
Side slope body, the side slope body are stepped；
Geomembrane, the geomembrane are layed on the ladder tread of the side slope body；
Soil block, the soil block are arranged on the geomembrane, and each soil block is wrapped up by geotextiles.
2. roadbed side slope as claimed in claim 1, it is characterised in that the width of the side slope body is at 40 centimetres to 100 lis
In the range of rice, highly in the range of 20 centimetres to 50 centimetres.
3. roadbed side slope as claimed in claim 1, it is characterised in that the geomembrane obstructs material by high molecular polymer waterproof
Material is made.
4. roadbed side slope as claimed in claim 1, it is characterised in that the geotextiles are flexible chemical fiber fabric.
5. roadbed side slope as claimed in claim 1, it is characterised in that backfill, the backfill have also been filled on the soil block
Kind is implanted with vegetation on soil.
6. roadbed side slope as claimed in claim 5, it is characterised in that the backfill is formed as domatic.
7. roadbed side slope as claimed in claim 1, it is characterised in that all relative set on each ladder of the side slope body
One soil block.
8. a kind of roadbed side slope construction method according to any one of claim 1 to 7, it is characterised in that this method includes：
Fill stair-stepping side slope body；
Geomembrane is laid on the step of stair-stepping side slope body；And
Soil block is wrapped up using geotextiles, and multiple soil blocks wrapped are positioned over the geomembrane on the side slope body step
On.
9. roadbed side slope construction method as claimed in claim 8, it is characterised in that according to the adjustment of the grade of side slope of roadbed
The height and width of side slope body.
10. roadbed side slope construction method as claimed in claim 8, it is characterised in that backfill is filled on the soil block,
Vegetation is planted in the backfill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710706517.6A CN107675714A (en) | 2017-08-17 | 2017-08-17 | Roadbed side slope and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710706517.6A CN107675714A (en) | 2017-08-17 | 2017-08-17 | Roadbed side slope and its construction method |
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| Publication Number | Publication Date |
|---|---|
| CN107675714A true CN107675714A (en) | 2018-02-09 |
Family
ID=61134823
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710706517.6A Pending CN107675714A (en) | 2017-08-17 | 2017-08-17 | Roadbed side slope and its construction method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109287359A (en) * | 2018-10-11 | 2019-02-01 | 太原植物园 | A kind of high steep breakage of massif is looked unfamiliar the method that state is quickly repaired |
| CN110117925A (en) * | 2019-03-27 | 2019-08-13 | 宁波工程学院 | A kind of prefabricated assembled combination waterproof roadbed suitable for soft soil foundation |
| CN110741840A (en) * | 2019-10-27 | 2020-02-04 | 中铁二院工程集团有限责任公司 | Greening structure and construction method for lightweight concrete filled side slope |
| CN114960699A (en) * | 2022-06-16 | 2022-08-30 | 矿冶科技集团有限公司 | Mine ecological fragile area slope restoration system and method |
| CN115010450A (en) * | 2022-06-29 | 2022-09-06 | 中国电建集团华东勘测设计研究院有限公司 | Roadbed material prepared from salt-containing sludge and road with salt seepage prevention and control capability |
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| CN103290752A (en) * | 2013-05-28 | 2013-09-11 | 长沙理工大学 | Embankment water seepage treatment system for highway reconstruction and extension project |
| CN104264557A (en) * | 2014-08-28 | 2015-01-07 | 杭州江润科技有限公司 | Semi-filling and semi-excavating ecological subgrade structure and construction method |
| CN204356788U (en) * | 2014-12-24 | 2015-05-27 | 中铁二院工程集团有限责任公司 | Flexibility subtracts swollen ecological revetment structure |
| CN105133617A (en) * | 2015-08-03 | 2015-12-09 | 李世海 | Strip mine slope excavation and landslide control method |
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|---|---|---|---|---|
| JPH10183635A (en) * | 1996-12-27 | 1998-07-14 | Kenichi Takada | Slope greening method and greening material for earth retaining |
| CN102587394A (en) * | 2012-01-19 | 2012-07-18 | 尚久駜 | Ecological protective structure for rock slope |
| CN103290752A (en) * | 2013-05-28 | 2013-09-11 | 长沙理工大学 | Embankment water seepage treatment system for highway reconstruction and extension project |
| CN104264557A (en) * | 2014-08-28 | 2015-01-07 | 杭州江润科技有限公司 | Semi-filling and semi-excavating ecological subgrade structure and construction method |
| CN204356788U (en) * | 2014-12-24 | 2015-05-27 | 中铁二院工程集团有限责任公司 | Flexibility subtracts swollen ecological revetment structure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109287359A (en) * | 2018-10-11 | 2019-02-01 | 太原植物园 | A kind of high steep breakage of massif is looked unfamiliar the method that state is quickly repaired |
| CN110117925A (en) * | 2019-03-27 | 2019-08-13 | 宁波工程学院 | A kind of prefabricated assembled combination waterproof roadbed suitable for soft soil foundation |
| CN110741840A (en) * | 2019-10-27 | 2020-02-04 | 中铁二院工程集团有限责任公司 | Greening structure and construction method for lightweight concrete filled side slope |
| CN114960699A (en) * | 2022-06-16 | 2022-08-30 | 矿冶科技集团有限公司 | Mine ecological fragile area slope restoration system and method |
| CN115010450A (en) * | 2022-06-29 | 2022-09-06 | 中国电建集团华东勘测设计研究院有限公司 | Roadbed material prepared from salt-containing sludge and road with salt seepage prevention and control capability |
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Application publication date: 20180209 |
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