CN108086333A - The control method of filling roadbed stability of slope - Google Patents
The control method of filling roadbed stability of slope Download PDFInfo
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- CN108086333A CN108086333A CN201711218123.2A CN201711218123A CN108086333A CN 108086333 A CN108086333 A CN 108086333A CN 201711218123 A CN201711218123 A CN 201711218123A CN 108086333 A CN108086333 A CN 108086333A
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- Prior art keywords
- slope
- roadbed
- filling roadbed
- filling
- side slope
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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
Abstract
The present invention provides a kind of control methods of filling roadbed stability of slope.The control method includes：It is required, confirmed described filling roadbed with the presence or absence of slope space according to filling roadbed physical features, external environment and position；If described filling roadbed there are slope space, it is described it is filling roadbed successively fill after to carrying out grass planting processing in the filling roadbed side slope；If described filling roadbed there is no slope space, successively filled in roadbed while successively fixation forms reinforced soil retaining wall side slope by lacing wire, rubble and earth-retaining shingle nail.Control method provided by the invention, it is required to use different control methods according to filling roadbed physical features, surrounding enviroment and position, improve the applicability of filling roadbed Slope Treatment, enhance filling roadbed scour resistance, it is particularly suitable for avoiding the harm of a kind of filling roadbed slump of soil, enhances inside embankment, external stabilization.
Description
Technical field
The present invention relates to civil construction technical field, in particular to a kind of prevention side of filling roadbed stability of slope
Method.
Background technology
At present, side slope is an important component in highway engineering, and the general effect of side slope protection directly influences
The monolithic stability of highway subgrade.Cutting slope defending common method is combined including engineering protection, vegetative protection and the two
Protection method.
Sri Lanka's highway is two-way lane, and treated that low chlorine sea sand is filled using local for roadbed, rolls and applies
Work simultaneously, carries out roadbed side slope construction.Sea sand with easy compacting, good water permeability, with higher water stability, internal friction angle
Greatly, may be used as roadbed filling, but during as side slope main material, exist easily wash away with slump, be not easy to be compacted, dry stability difference etc. lacks
It falls into.
The content of the invention
In consideration of it, the present invention proposes a kind of control method of filling roadbed stability of slope, it is intended to it is easy to solve existing roadbed
It washes away and the problem of slump.
The present invention proposes a kind of control method of filling roadbed stability of slope, the prevention side of the filling roadbed stability of slope
Method includes：Slope space verification step is required according to filling roadbed physical features, external environment and position, and road is filled described in confirmation
Base whether there is slope space；If described filling roadbed there are slope space, road is filled described for roadbed side slope processing step
Base successively fill after in the filling roadbed side slope carry out grass planting processing；It is if described filling roadbed empty there is no slope
Between, it is successively filled in roadbed while successively fixes to form reinforced soil retaining wall side slope by lacing wire, rubble and earth-retaining shingle nail.
Further, the control method of above-mentioned filling roadbed stability of slope, in the roadbed side slope processing step, if
It is described filling roadbed there are slope space, it is described it is filling roadbed successively fill after to being planted in the filling roadbed side slope
Grass processing includes following sub-step：Fill sub-step, by geotextiles package filler according to step-like successively lateral arrangement with
It is formed described filling roadbed；Sub-step is compacted, in the filling roadbed side slope on the outside of progress after clay bound edge, by bound edge soil
Default compactness is densified to the filling roadbed interior filler filled；Grass planting sub-step, through the compacting sub-step pressure
Grass planting processing is carried out in side slope after reality.
Further, the control method of above-mentioned filling roadbed stability of slope, the grass planting sub-step include：It is filled out according to described
It builds the road the physical features in slope space of base, external environment, position requirement, confirms the filling roadbed road surface and the height of periphery absolute altitude
Whether spend around poor and described side slope has abutment；If there are abutment around the side slope, in the compacting sub-step compacting
Side slope on carry out six rib blocks pave grass planting protection；If abutment and the filling roadbed road surface are not present around the side slope
It is less than or equal to 3m with the difference in height of periphery absolute altitude, turf is laid in the side slope of the compacting sub-step compacting；It is if described
There is no abutment and the filling roadbed road surfaces and the difference in height of periphery absolute altitude around side slope to be more than 3m, in the compacting sub-step
Suddenly the top for the side slope being compacted is laid with turf, and six rib blocks are carried out in the centre position of the side slope and pave grass planting protection, described
The pre-buried transverse drain exit of side slope sets side slope chute, and sets concrete protection upwards in the bottom of slope of the side slope
Band connects with six rib block grass planting buffer zones.
Further, the control method of above-mentioned filling roadbed stability of slope carries out six rib blocks in the grass planting sub-step
Grass planting protection is paved to further comprise：Multiple hollow six ribs blocks are paved successively to after position is paved, turf is sequentially tiled
In in the hollow six ribs block.
Further, turf is sequentially being laid in described hollow six by the control method of above-mentioned filling roadbed stability of slope
After in rib block, further include：The turf after completing is thrown into wooden or bamboo matter pointed stake to fix turf；Turf is made real, makes turf
With the closely connected consolidation of slope surface.
Further, the control method of above-mentioned filling roadbed stability of slope, it is described to be compacted in sub-step, fill road described
In the side slope of base, the difference of the filling roadbed width that clay bound edge is carried out per side and predetermined width is greater than or equal to 500mm.
Further, the control method of above-mentioned filling roadbed stability of slope, in the roadbed side slope processing step, if
It is described filling roadbed there is no slope space, it successively fills in roadbed while is successively fixed by lacing wire and earth-retaining shingle nail with shape
Into in reinforced soil retaining wall side slope, in roadbed filling described in lowest level, one will be laid with respectively in each panel concrete strip footing
Layer fills the contour earth-retaining shingle nail of compacting height with filler, and a slice width degree is laid in the inside of the earth-retaining shingle nail
The rubble band identical with the earth-retaining shingle nail is enclosed with the filler of building cloth, filling between the rubble on the outside of laying
TGXG is completely spread on object, in the roadbed filling of every layer of top, filler compaction in layers, while it is laid with one layer of earth-retaining
Mat formation after shingle nail and rubble band TGXG, until after design road foundation height mark, in the filling roadbed pre-buried transverse drainage
Pipe outlet sets vertical drain.
Further, the control method of above-mentioned filling roadbed stability of slope further includes after the roadbed procedure of processing：
Drainage system procedure of processing respectively sets a longitudinal drainage ditch, if described fill in the filling roadbed side slope two bottom sides
The grade elevation of roadbed is more than 3m with the height difference of periphery absolute altitude, and greenbelt is laid with U-shaped ditch in the middle part of the filling roadbed road
And sump, the sump are connected with the filling roadbed inbuilt transverse drain, the transverse drain water outlet
Connected by slope drainage passage with the longitudinal drainage pipe.
Further, the control method of above-mentioned filling roadbed stability of slope, the filler are sea sand.
The control method of filling roadbed stability of slope provided by the invention, according to filling roadbed physical features, surrounding enviroment and
Position requires, and chooses different control methods and carries out filling roadbed processing；There are during slope space, it is by grass planting construction
The mode of vegetative protection；There is no during slope space, by way of strengthening construction, that is, engineering protection；According to filling roadbed
Physical features, surrounding enviroment and position requirement use different control methods, improve the stability of roadbed side slope, enhance roadbed side slope
Scour resistance, so as to avoid the filler in filling roadbed be washed it is even filling roadbed there is slump etc., and then reduce
Embankment Subsidence is enhanced inside embankment, external stabilization, between the cost, safety, duration three that realize Slope Treatment engineering
Reasonable balance；Meanwhile the control method has accomplished that Slope Treatment mode is adapted with surrounding enviroment, not only reduces road engineering
Total cost, while beautified environment.
U-shaped ditch and its sump of connection that further, the greenbelt in the present invention in the middle part of filling roadbed road is laid with,
The longitudinal drainage ditch of the pre-buried transverse drain of roadbed, slope drainage passage and bottom of slope constitutes perfect drainage system, ensures
Road ensures the stability of filling roadbed filler in the rapid, unimpeded of precipitation draining.
Description of the drawings
By reading the detailed description of hereafter preferred embodiment, it is various other the advantages of and benefit it is common for this field
Technical staff will be apparent understanding.Attached drawing is only used for showing the purpose of preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings：
Fig. 1 is the flow diagram of the control method of filling roadbed stability of slope provided in an embodiment of the present invention；
There are the flows of roadbed side slope processing step during slope space to show for filling roadbed side slope provided in an embodiment of the present invention by Fig. 2
It is intended to；
Front view filling roadbed when being the filling roadbed space there are slope provided in an embodiment of the present invention Fig. 3；
Top view filling roadbed when being the filling roadbed space there are slope provided in an embodiment of the present invention Fig. 4；
Fig. 5 is the structure diagram of earth-retaining shingle nail provided in an embodiment of the present invention；
Fig. 6 is earth-retaining shingle nail provided in an embodiment of the present invention, connector and the structure diagram of lacing wire；
Fig. 7 is filling roadbed filling roadbed structure diagram when slope space is not present provided in an embodiment of the present invention.
Specific embodiment
The exemplary embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although the disclosure is shown in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
Completely it is communicated to those skilled in the art.It should be noted that in the case where there is no conflict, embodiment in the present invention and
Feature in embodiment can be mutually combined.The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
It is the flow diagram of the control method of filling roadbed stability of slope provided in an embodiment of the present invention referring to Fig. 1,
The control method includes the following steps：
Slope space verification step S1, according to filling roadbed physical features, external environment and position require, confirm it is filling roadbed whether
There are slope spaces.
Specifically, first, filling roadbed physical features and external environment are reconnoitred；Then, lookup data and confirm fill road
The position requirement of base and road conditions requirement, wherein, position requires the compacting requirement for mainly including filling roadbed each position
Etc. technologies requirement；Finally, required according to filling roadbed physical features and external environment and position, determine around filling roadbed whether
There are slope spaces.
Roadbed side slope processing step S2, if filling roadbed there are slope space, it is filling roadbed successively fill after to filling out
Grass planting processing is carried out in the side slope of base of building the road；If filling roadbed there is no slope space, successively fill while pass through in roadbed
Lacing wire, rubble and earth-retaining shingle nail are successively fixed to form reinforced soil retaining wall side slope.
Specifically, it whether there is according to the slope space verification step S1 slope spaces confirmed, choose different preventions
Measure.If filling roadbed there are slope space, first, after filling roadbed substrate is tamped, filler is successively filled
To form the filling roadbed and side slope for meeting technology requirement and layout design；Then, carried out in filling roadbed side slope
Slope surface is rebuild, and is set fixed model hanging wire according to data such as layout design grade of side slope, basic elevations, is cleaned surface surface dust with water, fill out
It is recessed to mend hole, and making real makes slope leveling qualified by inspection up to slope surface trimming；Finally, grass planting is carried out in the side slope after trimming to apply
Work.Wherein, scheme implements ground as coastal area, and to save cost, by dropping chlorine processing, filler selects sea sand, and sea sand has
Easy compacting, good water permeability, with big compared with high water stability, internal friction angle, can be fully compacted so as to filling roadbed.
If filling roadbed there is no slope space, successively filled in roadbed while by lacing wire, rubble and earth-retaining metope
Plate is successively fixed to form reinforced soil retaining wall side slope；Reinforced earth retaining wall be banket, lacing wire, the combination of panel three, banket
Frictional force between lacing wire improves the physical performance to banket so that bankets and is integrated into a whole with lacing wire, so as to rise
To the purpose for stablizing the soil body.
Specifically, it is preferable that lacing wire is civil grille；When roadbed successively fills, wrapped up by non-woven fabrics geotextiles
Sea sand filler layered rolling, anti-package length are not less than 300mm.In lowest level roadbed filling, by each panel concrete bar shaped base
One layer is laid on plinth respectively and fills the contour earth-retaining shingle nail 9 of compacting height with filler, in the earth-retaining shingle nail
Inside is laid with the slice width degree rubble band identical with the earth-retaining shingle nail, and soil is enclosed on the outside of laying between the rubble band
The filler of wooden cloth completely spreads lacing wire on filler, and in the roadbed filling of every layer of top, filler compaction in layers is spread simultaneously
If mating formation TGXG after one layer of earth-retaining shingle nail 9 and rubble band, until after design road foundation height mark, described filling roadbed
Pre-buried transverse drain outlet sets vertical drain；Each section of earth-retaining foundation of wall, that is, concrete continuous footing preferably sets two or more
Subsiding crack, sedimentation slit width 10~20mm.Wherein, if scheme implements ground as coastal area, to save cost, by dropping at chlorine
Reason, filler select sea sand, sea sand have easily compacting, good water permeability, with big compared with high water stability, internal friction angle, so as to
It is filling roadbed to be fully compacted.
Specifically, first, earth-retaining shingle nail 9 uses C30 concrete, and compacting size is long 40cm, width 20cm, height
20cm, structure are as shown in Figure 5；Using TGXG 10 as lacing wire in project, while special connector 11 is used by geotechnique
Grid 10 is that concrete segment panel is connected with earth-retaining shingle nail 9, and TGXG 10 and concrete segment panel connecting structure are such as
Shown in Fig. 6；The filler layered rolling of non-woven fabrics geotextiles package, every layer of filler is 400mm high, the two of every layer of filler
Side is built apart from the rubble band that retaining wall panel width is 400mm, and effect is mainly draining；It is laid in the both sides of every layer of rubble
Lower two layers of earth-retaining shingle nail 9 is successively filling roadbed to fill；And one layer of TGXG is installed on every layer of roadbed, according to drawing
It is required that 10 length blanking of TGXG, beyond connector 11（In building block notch）The surplus of 50mm length is left, by geotechnique
The end of grid 10 is placed on the notch on 11 top of connector, it is ensured that connector 11 covers all grid gaps, connects
TGXG 10 and the combination of connector 11 are placed in the groove on 9 top of earth-retaining shingle nail, solid to be connected between every layer of roadbed
It is fixed.Wherein, separated between filler and rubble with non-woven geotextile, anti-package length is not less than 300mm.
Drainage system procedure of processing S3 respectively sets a longitudinal drainage ditch, such as in the filling roadbed side slope two bottom sides
Filling roadbed grade elevation described in fruit and the height difference of periphery absolute altitude are more than 3m, the greenbelt in the middle part of the filling roadbed road
U-shaped ditch and sump are laid with, the sump is connected with the filling roadbed inbuilt transverse drain, the transverse drainage
Pipe water outlet is connected by slope drainage passage with the longitudinal drainage pipe.
Specifically, if the height difference of the filling roadbed grade elevation and periphery absolute altitude is more than 3m, it is filling roadbed
There is along the transverse direction on its road surface pre-plugged during filling is embedded with transverse drain perpendicular to filling roadbed length direction
1, and greenbelt has dug spaced sump 2 along its length in the middle part of filling roadbed road surface after filling, collection
Well 2 discharges its internal ponding by transverse drain 1, and sump 2 can be along filling roadbed length direction at interval of 30m
Set one；After sump 2 is dug, greenbelt is laid with U-shaped ditch 3 in the middle part of filling roadbed road surface, and U-shaped ditch 3 often saves length
300mm is connected after being connected by pointing with cement mortar between U-shaped ditch 3 with sump, so that ponding further is drained into ponding
In well；Also, dig a longitudinal drainage ditch 4 set along filling roadbed length direction respectively in filling roadbed bottom of slope both sides,
The longitudinal drainage ditch 4 is connected by slope drainage passage with transverse drain 1, will pass through transverse drain 1 by sump 2
Interior ponding drains into longitudinal drainage ditch 4.Wherein, the no existing order of the processing of longitudinal drainage ditch and U-shaped ditch.
The difference in height of filling roadbed road surface and periphery absolute altitude is more than the slope drainage passage of 3m, there is the side slope in slope space
Drainage channel is side slope chute, and the side slope passage in no slope space is vertical drain.
Obviously it is achieved that, the control method of the filling roadbed stability of slope provided in the present embodiment, according to filling
Physical features, surrounding enviroment and the position requirement of roadbed, choose different control methods and carry out filling roadbed processing；There are slopes
During space, in a manner that grass planting construction is vegetative protection；There is no during slope space, pass through strengthening construction, that is, engineering protection
Mode；It is required to use different control methods according to filling roadbed physical features, surrounding enviroment and position, improves filling roadbed side
The applicability of slope processing, enhances filling roadbed scour resistance, is particularly suitable for avoiding the harm of a kind of filling roadbed slump of soil；
Meanwhile this method improves the stability of roadbed side slope, enhances the scour resistance of roadbed side slope, to avoid in filling roadbed
Filler be washed it is even filling roadbed there is slump etc., and then reduce Embankment Subsidence, it is internal, external steady to enhance embankment
It is fixed, realize the reasonable balance between the cost, safety, duration three of Slope Treatment engineering；Meanwhile the control method is accomplished
Slope Treatment mode is adapted with surrounding enviroment, is not only reduced road engineering total cost, while has been beautified environment.
Further, the U-shaped ditch and its sump, the roadbed of connection that the greenbelt in the middle part of filling roadbed road is laid with are pre-buried
Transverse drain, the longitudinal drainage ditch of slope drainage passage and bottom of slope constitute perfect drainage system, ensure road strong
Draining is rapid, unimpeded under precipitation event, and then ensures the stability of filling roadbed filler.
Referring to Fig. 2, there are roadbed side slope processing steps during slope space for filling roadbed side slope provided in an embodiment of the present invention
Flow diagram；If the S2 in roadbed side slope processing step filling roadbed there are slope space, is successively filled out filling roadbed
Include following sub-step to carrying out grass planting processing in filling roadbed side slope after building：
Sub-step S211 is filled, the filler that geotextiles are wrapped up is filling roadbed to be formed according to step-like successively lateral arrangement.
Specifically, required according to the physical features of roadbed and position, layering filler wrap up and then fill layering
Object in step-like lateral arrangement in filling roadbed basis, fill out by every layer of geotextiles lower length 11m long, upper length 2m long edge
It builds the road the laterally inboard tiling of base, the wide 500mm high 400mm of every grade of step, the gradient of each layer step and filling roadbed side slope
The gradient is identical.
Sub-step S212 is compacted, in filling roadbed side slope on the outside of progress after clay bound edge, by bound edge soil and fills road
The filler filled in base is densified to default compactness.
Specifically, first, it is filling roadbed per side slope on the filling roadbed side slope that sub-step S211 fills is filled
Slope surface on use cohesive soil bound edge；Then, bound edge soil is rolled with the filling roadbed interior filler filled simultaneously be densified to it is pre-
If compactness；Preferably, in filling roadbed side slope, the filling roadbed width that clay bound edge is carried out per side slope and default width
The difference of degree is greater than or equal to 500mm；Wherein, presetting compactness and predetermined width can require really according to filling roadbed position
It is fixed.
Grass planting sub-step S213 carries out grass planting processing in the side slope after compacting sub-step compacting.
Specifically, first, will be compacted sub-step S212 compacting after side slope carry out slope surface cleaning, so as to by slope surface not
Stable stone or eliminating impurities must not have turquoise or danger stone；Then, on side slope surface on carry out grass planting processing.
Grass planting construction mainly carries out different according to the requirement of the physical features, external environment and position in filling roadbed slope space
Grass planting is constructed.First, required, confirmed filling roadbed according to the physical features, external environment and position in filling roadbed slope space
Whether there is abutment around the difference in height and side slope of road surface and periphery absolute altitude；Then, if there are abutment around side slope, it is being compacted
Six rib blocks are carried out in the side slope of sub-step compacting and pave grass planting protection；It is filling roadbed if abutment is not present around side slope
The difference in height of road surface and periphery absolute altitude is less than or equal to 3m, and turf is laid in the side slope of compacting sub-step compacting, can directly by
Artificial grass is laid in slope surface.If there is no abutment and filling roadbed road surface and the differences in height of periphery absolute altitude around side slope
More than 3m, turf is laid with to form turf guard plot 5 on the top of the side slope of compacting sub-step compacting, in the centre position of side slope
It carries out six rib blocks and paves grass planting protection to form six rib block guard plots 6, set in the pre-buried transverse drain exit of the side slope
Side slope chute 7 is put, and concrete protection band 8 is set upwards in the bottom of slope of the side slope, is connected with six rib block grass planting buffer zones, is spread
Block order from the bottom to top, is close to slope surface, laying length 3m；The edge slope structure is specifically as shown in Figure 3 and Figure 4, horizontal in figure
The arrow of drafting represents water (flow) direction；It can banketing on slope surface and manually make real before grass planting is carried out, native thickness 150mm is thick,
One layer of fiber ash is spread after smooth on native surface（fibrous dust）With the mixture of soil；Then, by multiple hollow six ribs blocks according to
Secondary to pave to after position is paved, artificial grass is sequentially laid in from top of the slope to six rib block bottoms in slope surface and hollow six ribs block.It is right
In the part for spreading six rib blocks, sequentially it is laid in from turf in six rib blocks, throws the turf after completing into wooden or bamboo matter pointed stake
To fix turf, turf is clapped one time to arrange real turf comprehensively with wooden mallet, so that turf and the closely connected consolidation of slope surface；Preferably,
Buffalograss can be used in turf, to reduce cost.
Specifically, there is slope space, road surface is not more than the side slope of 3m, the layering sea of geotextiles package with periphery elevation difference
Sand is in step-like lateral arrangement, and every layer of geotextiles lower length 11m long, upper length 2m Chang Yan highways laterally inboard tile, often
Grade step wide 500mm, high 400mm, the same grade of side slope of the gradient；Clay bound edge on the outside of side slope, bound edge soil with sea sand roll simultaneously to
Specify compactness；Clay bound edge, which is laid with width, should be wider than design width 500mm per side, and do grass planting construction, artificial grass tiling
In in slope surface, side slope bottom uses bright row with gutter, whole drainage system is set.
There is slope space, road surface is combined with side slope of the periphery elevation difference more than 3m using six rib block vegetation with side slope chute
Protection method, that is to say, that the layering sea sand of geotextiles package is in step-like lateral arrangement, every layer of geotextiles lower length
11m long, the tiling of upper length 2m Chang Yan highways laterally inboard, every grade of step wide 500mm, high 400mm, the same grade of side slope of the gradient.
Clay bound edge on the outside of side slope, bound edge soil are rolled simultaneously with sea sand to specified compactness；Clay bound edge is laid with width should be wider than per side
Width 500mm is designed, bottom of slope sets 500mm long concrete buffer zones, is then laid with prefabricated six ribs block, paves order from the bottom to top,
It is close to slope surface, laying length 3m bankets on slope surface and manually makes real；The thickness 150mm of soil is thick.On native surface after smooth
Spread one layer of fiber ash（fibrous dust）With the mixture of soil；Artificial grass is sequentially laid in slope surface from top of the slope to six rib block bottoms
On.For spreading the part of six rib blocks, sequentially it is laid in from turf in six rib blocks, is fixed turf with wooden or bamboo matter pointed stake, use
Wooden mallet is comprehensively clapped turf one time, to be allowed to be close to slope surface；Greenbelt is laid with U-shaped ditch in the middle part of highway, and U-shaped ditch often saves length
300mm, pointing with cement mortar connect with sump, and sump sets one per 30m, and is connected with road transverse drain.Road
Road transverse drain water outlet slope construction chute, chute connect with bottom of slope gutter.
There is slope space, the side slope at abutment position uses the protection method of all six rib block vegetation：Slope surface pressure near abutment
After reality, entire side slope surface is laid with prefabricated six ribs block, and turf is sequentially laid in six rib blocks, Arc slope and the road surface side of abutment
Slope intersection sets width 200mm torrent rhones.
Obviously be achieved that, in the present embodiment by have slope space fill compacting after carry out grass planting apply
Work to ensure the stability of side slope, reduces the stability of side slope；Especially, the grass planting of side slope is according to the physical features in slope space
Deng the grass planting construction be adapted with surrounding enviroment, using vegetation, reinforced soil retaining wall, six rib block vegetation and side slope chute group
It closes and end of the bridge high fill position is protected using all modes such as six rib block vegetation, to ensure filling roadbed stability.
To sum up, the control method of filling roadbed stability of slope provided in this embodiment, according to filling roadbed physical features, periphery
Environment and position requirement, choose different control methods and carry out filling roadbed processing；There are during slope space, pass through grass planting
Construction is the mode of vegetative protection；There is no during slope space, by way of strengthening construction, that is, engineering protection；According to filling
Physical features, surrounding enviroment and the position requirement of roadbed use different control methods, improve the applicability of filling roadbed Slope Treatment,
Enhance filling roadbed scour resistance, be particularly suitable for avoiding the harm of a kind of filling roadbed slump of soil；Meanwhile this method improves
The stability of roadbed side slope, the scour resistance for enhancing roadbed side slope are washed very to avoid the filler in filling roadbed
There is slump etc. to filling roadbed, and then reduce Embankment Subsidence, enhance inside embankment, external stabilization, realize at side slope
Reasonable balance between the cost of science and engineering journey, safety, duration three；Meanwhile the control method accomplished Slope Treatment mode with
Surrounding enviroment are adapted, and are not only reduced road engineering total cost, while have been beautified environment.
Further, the U-shaped ditch and its sump, the roadbed of connection that the greenbelt in the middle part of filling roadbed road is laid with are pre-buried
Transverse drain, the longitudinal drainage ditch of slope drainage passage and bottom of slope constitute perfect drainage system, ensure road strong
Draining is rapid, unimpeded under precipitation event, and then ensures the stability of filling roadbed filler.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and scope.In this way, if these modifications and changes of the present invention belongs to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these modification and variations.
Claims (9)
1. a kind of control method of filling roadbed stability of slope, which is characterized in that including：
Slope space verification step is required according to filling roadbed physical features, external environment and position, and confirming described filling roadbed is
It is no that there are slope spaces；
Roadbed side slope processing step, if described filling roadbed there are slope space, it is described it is filling roadbed successively fill after it is right
Grass planting processing is carried out in the filling roadbed side slope；If described filling roadbed there is no slope space, successively filled out in roadbed
It builds while successively fixes to form reinforced soil retaining wall side slope by lacing wire, rubble and earth-retaining shingle nail.
2. the control method of filling roadbed stability of slope according to claim 1, which is characterized in that in the roadbed side slope
In processing step, if described filling roadbed there are slope space, it is described it is filling roadbed successively fill after fill road to described
Grass planting processing is carried out in the side slope of base includes following sub-step：
Sub-step is filled, the filler that geotextiles are wrapped up is described filling roadbed to be formed according to step-like successively lateral arrangement；
Sub-step is compacted, in the filling roadbed side slope on the outside of progress after clay bound edge, bound edge soil is filled into road with described
The filler filled in base is densified to default compactness；
Grass planting sub-step carries out grass planting processing in the side slope after the compacting sub-step compacting.
3. the control method of filling roadbed stability of slope according to claim 2, which is characterized in that the grass planting sub-step
Including：
It is required according to the physical features, external environment, position in the filling roadbed slope space, confirms the filling roadbed road surface
With whether having abutment around the difference in height of periphery absolute altitude and the side slope；
Prevent if carrying out six rib blocks there are abutment around the side slope, in the side slope being compacted in the compacting sub-step and paving grass planting
Shield；
To be less than or wait if there is no abutments and the difference in height of the filling roadbed road surface and periphery absolute altitude around the side slope
In 3m, turf is laid in the side slope of the compacting sub-step compacting；
If there is no abutment and the filling roadbed road surfaces and the difference in height of periphery absolute altitude around the side slope to be more than 3m,
The top of the side slope of the compacting sub-step compacting is laid with turf, and carrying out six rib blocks in the centre position of the side slope paves grass planting
Protection sets side slope chute in the pre-buried transverse drain exit of the side slope, and is set upwards in the bottom of slope of the side slope
Concrete protection band connects with six rib block grass planting buffer zones.
4. the control method of filling roadbed stability of slope according to claim 3, which is characterized in that in the grass planting sub-step
Six rib blocks of progress are paved grass planting protection and are included in rapid：
Multiple hollow six ribs blocks are paved successively to after position is paved, turf being sequentially laid in the hollow six ribs block.
5. the control method of filling roadbed stability of slope according to claim 4, which is characterized in that sequentially putting down turf
After being laid in the hollow six ribs block, further include：
The turf after completing is thrown into wooden or bamboo matter pointed stake to fix turf；
Turf is made real, makes turf and the closely connected consolidation of slope surface.
6. the control method of filling roadbed stability of slope according to claim 2, which is characterized in that the compacting sub-step
In,
In the filling roadbed side slope, the difference of the filling roadbed width and predetermined width that clay bound edge is carried out per side
More than or equal to 500mm.
7. the control method of filling roadbed stability of slope according to any one of claims 1 to 6, which is characterized in that in institute
It states in roadbed side slope processing step, if described filling roadbed there is no slope space, successively filled in roadbed while pass through drawing
Muscle, rubble and earth-retaining shingle nail are successively fixed to be formed in reinforced soil retaining wall side slope,
In roadbed filling described in lowest level, one layer will be laid in each panel concrete strip footing respectively and fills pressure with filler
The contour earth-retaining shingle nail of real height, a slice width degree and the earth-retaining shingle nail are laid in the inside of the earth-retaining shingle nail
Identical rubble band is enclosed with the filler of building cloth between the rubble band, geotechnological lattice is completely spread on filler on the outside of laying
Grid, in the roadbed filling of every layer of top, filler compaction in layers, while it is laid with one layer of earth-retaining shingle nail and rubble band
After mat formation TGXG, until after design road foundation height mark, vertical row is set in the filling roadbed pre-buried transverse drain outlet
Water pipe.
8. the control method of the filling roadbed stability of slope according to claim 1 to 6, which is characterized in that in the roadbed
It is further included after procedure of processing：
Drainage system procedure of processing respectively sets a longitudinal drainage ditch, if described in the filling roadbed side slope two bottom sides
Filling roadbed grade elevation and the height difference of periphery absolute altitude are more than 3m, and greenbelt is laid with U in the middle part of the filling roadbed road
Type ditch and sump, the sump are connected with the filling roadbed inbuilt transverse drain, and the transverse drain goes out
The mouth of a river is connected by slope drainage passage with the longitudinal drainage pipe.
9. the control method of filling roadbed stability of slope according to any one of claims 1 to 6, which is characterized in that described
Filler is sea sand.
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