CN106988324B - Root system combines the method that bar strip reinforces expansive soil slope - Google Patents
Root system combines the method that bar strip reinforces expansive soil slope Download PDFInfo
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- CN106988324B CN106988324B CN201710124645.XA CN201710124645A CN106988324B CN 106988324 B CN106988324 B CN 106988324B CN 201710124645 A CN201710124645 A CN 201710124645A CN 106988324 B CN106988324 B CN 106988324B
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- bar strip
- expansive soil
- root system
- soil slope
- 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
- E02D17/202—Securing of slopes or inclines with flexible securing means
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The method that root system joint bar strip provided by the invention reinforces expansive soil slope, the water draining and accumulating groove of lattice network type is built in the slope surface of expansive soil slope, the plant of interval plantation well developed root system in water draining and accumulating groove, perpendicular to bar strip of the side slope surface implantation with tensile strength and absorbing and holding water property between adjacent two plant, the bar strip lower end passes through the surface layer (soil layer easily infiltrated by rainfall infiltration) that expansive soil slope easily soaks, implantation depth to reach inside the inner layer of expansive soil slope difficulty immersion.The method of the invention can realize the ecology and flexible protective of expansive soil slope simultaneously.
Description
Technical field
The present invention relates to soil erosion and Reinforcement Works of Rock Slopes technical fields, and in particular to one kind taking root system joint lacing wire
The method for ruling reason expansive soil slope by law with ecological protection.
Background technology
In expansive soil slope engineering, the problem of technical barrier currently encountered is mainly water, i.e., during non-rainfall due to
Evaporation causes swelled ground to crack, and swelled ground softens when rainfall, in addition crack moderate rain water logging maceration, slope soil intensity drop
It is low so that conventional lattice girder bulkhead tech and other rigid bulkhead tech are easy failure mostly.Since swelled ground is afraid of water, expansion
Native slope project is required not only waterproof but also can be drained again, and it is difficult by needing the ecological revetment with water curing to cause expansive soil slope
Method, such as spread grass seeds, turfing, hydraulic sprinkle grass planting, Three-Dimensional Network Seeding, lattice beam framework grass planting etc. and carry out ecological protection.
Therefore there are two insoluble technical barriers for existing bulkhead tech, first, being difficult to solve current expansive soil slope using rigidity
There are the technical barriers that wet Swelling is destroyed for protection, second is that being difficult to change can not use water (due to wet Swelling sex chromosome mosaicisms) to support using ecological revetment
The situation of pillar reason.In order to effectively administer expansive soil slope, it is desirable to provide a kind of new expansive soil slope administering method can solve
Certainly the wet Swelling of expansive soil slope destroys problem, and can change and use ecological revetment that can not use the situation of water curing management.
Invention content
It is an object of the invention to for existing expansive soil slope engineering rigidity bank protection especially ecological protection technology not
Foot provides a kind of method that root system joint bar strip reinforces expansive soil slope, to realize the ecological and soft of expansive soil slope simultaneously
Property protection.
For foregoing invention purpose of the present invention, root system joint bar strip provided by the invention reinforces the side of expansive soil slope
The composition of method, technical solution includes mainly：Expansive soil slope slope surface build lattice network type for drain and water storage
Groove (water draining and accumulating groove), the plant of interval plantation well developed root system, vertical between adjacent two plant in water draining and accumulating groove
In bar strip of the side slope surface implantation with tensile strength and absorbing and holding water property, the bar strip lower end passes through expansive soil slope
The surface layer (soil layer easily infiltrated by rainfall infiltration) easily soaked, implantation depth reach inside the inner layer of expansive soil slope difficulty immersion.
In the above-mentioned technical proposal of the present invention, the water draining and accumulating groove is that the cross section excavated on side slope surface is ladder
The water draining and accumulating minor groove of shape (inverted trapezoidal).It preferably is laid with waterproof membrane and the earthing on film in the two side of water draining and accumulating groove, to prevent
Only rainwater enters to blend ultraviolet light irradiation from side wall.Groove slot bottom width priority acccess control is in 10~15cm ranges.
In the above-mentioned technical proposal of the present invention, the bar strip can be single bar strip or bunchy bar strip, bar strip
The depth of lower end expandable implant soil side slope is preferably equivalent at least 80cm.
In the above-mentioned technical proposal of the present invention, the implantation of the bar strip, which can be taken, first hangs down in expansive soil slope surface
Straight punching downwards, during then the indentation of bar strip one end is punched, make bar strip along hole extend to bottom hole after pine is poured into hole
It dissipates fine grained soil or bar strip is fixed in hole by mud.
In the above-mentioned technical proposal of the present invention, the bar strip can be nylon ribbon, terylene ribbon or the polypropylene fibre of densification
2~4cm that ribbon makes or so wide band.
In the above-mentioned technical proposal of the present invention, the grid of lattice network made of the arrangement of water draining and accumulating groove is preferably pros
Shape lattice or diamond-plaid, the vertical interval between adjacent two parallel water draining and accumulating grooves are generally 1~1.5m ranges.
In the above-mentioned technical proposal of the present invention, plant its adjacent strain spacing for being planted in water draining and accumulating groove is generally 30~
40cm。
In the above-mentioned technical proposal of the present invention, lattice network made of preferably arranging in side slope surface water draining and accumulating groove
Turf Culture in grid, further to conserve water and soil.
The present invention above-mentioned technical proposal in, the plant of plantation need be well developed root system plant, such as shrub or
The draft class such as vetiver.
The method of the invention can inhibit expansive soil slope rainfall to generate the mechanics principle that dilatancy is destroyed：Rainfall
Side slope surface layer swelled ground can be caused to generate upward expansive force q1, corresponding between internal layer difficulty immersed soil mass and bar strip to generate one
Downward frictional force q2, to realize slope surface normal direction small axial dimension (see Fig. 3).
Compared with prior art, the invention has the advantages that：
1. the method for the invention reinforces expansive soil slope using root system joint bar strip, the water draining and accumulating of semiclosed property is utilized
Groove water draining and accumulating (based on row, supplemented by storage, the main row of heavy rain, the main storage of light rain), utilizes the capillary force water holding of the bar strip of implantation
Root fills.Rainfall runoff, which is collected under semiclosed (being closed by waterproof membrane two side) water draining and accumulating channel bottom, to be oozed, and bar strip absorbs
Under the rainwater that oozes and water holding supply root system of plant capillary water absorption.Swelled ground avoids violent dry and wet due to micro-control water holding simultaneously
Expansion caused by cycle and cracking so that expansive soil slope water-proof drainage effect is good, plant slope protection ecologic effect resistance to persistence
It is good, effectively maintain the flexibility and ecological protection of expansive soil slope.
2. in the method for the invention, vetiver or other shrub plant all have flourishing root system, in bar strip capillary
Through that can penetrate the steady soil of lower part with fast-growth after a period of time under the maintenance of water holding, root system will be wound with bar strip
It is integral, to which consolidation effect can be improved, be conducive to the swelled ground bulking that conserves water and soil and inhibit.
3. in the method for the invention, by replacing traditional lattice girder with the network of going along with sb. to guard him of plant combined water holding bar strip
Skeleton limits the protuberance of expansive soil slope and downslide caused by rainfall using the uplift effect of bar strip and plant root, thus
The ecological protection for adapting to expansive soil slope realizes the ecology and flexible protective of expansive soil slope.
4. in the method for the invention, curing system easy foundation simple in structure, reasonable design, it is simple for process, be easy to construction,
Easy to operate, at low cost, maintenance is easy, is easy to spread, can be used for ecological protection and the greening of expansive soil slope.
Description of the drawings
Fig. 1 is the expansive soil slope surface vertical view after reinforcing of the present invention；
Fig. 2 is the A-A sectional views of Fig. 1；
Fig. 3 is the mechanics principle schematic diagram of the method for the invention.
In figure, 1-water draining and accumulating groove, 2-bar strips, 3-plant (vetiver or shrub), 4-expansive soil slopes easily soak
The surface layer of water, the inner layer of 5-expansive soil slope difficulties immersion, 6-turfs.
Specific implementation mode
Make below by the method that specific implementation mode reinforces expansive soil slope to root system of the present invention joint bar strip
It further illustrates.
Embodiment 1
The method that the root system joint bar strip of the present embodiment reinforces expansive soil slope, the composition of technical solution includes, swollen
It is swollen soil side slope slope surface structure lattice network type distribution water draining and accumulating groove 1, water draining and accumulating groove 1 be excavated in slope surface it is transversal
Face is the minor groove of inverted trapezoidal, and two side is laid with waterproof membrane and the earthing on film, with prevent rainwater from side wall enter to blend it is ultraviolet
Line irradiates.Water draining and accumulating groove slot bottom width is about 10cm.The grid of lattice network made of the arrangement of water draining and accumulating groove is diamond-plaid,
Vertical interval between adjacent two parallel water draining and accumulating grooves is 1m or so.Plant vetiver in water draining and accumulating groove, adjacent two
Spacing (strain spacing) between plant is 35cm or so.Have tension strong perpendicular to side slope surface implantation between adjacent two plant
The single bar strip 2 of degree and absorbing and holding water property, the bar strip are the fine and close nylon ribbon of 3cm wide, and lower end passes through swelled ground
The surface layer 4 that side slope is easily soaked, implantation depth reach inside the inner layer 5 of expansive soil slope difficulty immersion, bar strip lower end implantation depth
About 80cm.The method for implantation of bar strip is that first with fluted drill or conehead reinforcing bar, vertical slope surface is beaten downwards on expansive soil slope
Hole, in then using fluted drill or conehead reinforcing bar to punch the indentation of bar strip one end, make bar strip along hole extend to bottom hole after pull out
Go out fluted drill or conehead reinforcing bar, and pours into hole loose fine grained soil or bar strip is fixed in hole by mud.Finally on slope
Turf Culture 6 in the grid of lattice network made of the water draining and accumulating groove arrangement of face.
Claims (10)
1. a kind of method that root system joint bar strip reinforces expansive soil slope, it is characterised in that built in the slope surface of expansive soil slope
The water draining and accumulating groove (1) of lattice network type, the plant (3) of interval plantation well developed root system, plants adjacent two in water draining and accumulating groove
Perpendicular to bar strip (2) of the side slope surface implantation with tensile strength and absorbing and holding water property, the bar strip lower end between strain
Across the surface layer that expansive soil slope easily soaks, implantation depth reaches inside the inner layer of expansive soil slope difficulty immersion.
2. the method that root system joint bar strip reinforces expansive soil slope according to claim 1, it is characterised in that the row stores
Water groove (1) is that the cross section excavated on side slope surface is trapezoidal water draining and accumulating minor groove.
3. the method that root system joint bar strip reinforces expansive soil slope according to claim 2, it is characterised in that in water draining and accumulating
The two side of groove is laid with waterproof membrane and the earthing on film, to prevent rainwater from entering to blend ultraviolet light irradiation from side wall.
4. the method that root system joint bar strip reinforces expansive soil slope according to claim 2, it is characterised in that trench bottom surfaces
Width is 10~15cm.
5. according to the method that root system joint bar strip reinforces expansive soil slope described in any claim in Claims 1 to 4,
It is characterized in that the bar strip is single bar strip or bunchy bar strip, the depth of lower end expandable implant soil side slope is at least
80cm。
6. combining the method that bar strip reinforces expansive soil slope according to claim 5 root system, it is characterised in that the bar strip
Implantation is first to be punched vertically downward in expansive soil slope surface, in then punching the indentation of bar strip one end, makes bar strip edge
Hole, which extends to after bottom hole, pours into loose fine grained soil into hole or bar strip is fixed in hole by mud.
7. the method that root system joint bar strip reinforces expansive soil slope according to claim 5, it is characterised in that the lacing wire
Band is 2~4cm that nylon, terylene or polypropylene fibre ribbon make or so wide fine and close band.
8. according to the method that root system joint bar strip reinforces expansive soil slope described in any claim in Claims 1 to 4,
It is characterized in that the grid of lattice network made of the arrangement of water draining and accumulating groove is square lattice or diamond-plaid, adjacent two parallel rows store
Vertical interval between water groove is 1~1.5m.
9. according to the method that root system joint bar strip reinforces expansive soil slope described in any claim in Claims 1 to 4,
It is characterized in that its adjacent strain spacing of the plant planted in water draining and accumulating groove is 30~40cm.
10. according to the method that root system joint bar strip reinforces expansive soil slope described in any claim in Claims 1 to 4,
It is characterized in that Turf Culture in the grid of lattice network made of the arrangement of side slope surface water draining and accumulating groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710124645.XA CN106988324B (en) | 2017-03-03 | 2017-03-03 | Root system combines the method that bar strip reinforces expansive soil slope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710124645.XA CN106988324B (en) | 2017-03-03 | 2017-03-03 | Root system combines the method that bar strip reinforces expansive soil slope |
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| Publication Number | Publication Date |
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| CN106988324A CN106988324A (en) | 2017-07-28 |
| CN106988324B true CN106988324B (en) | 2018-09-14 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109042103B (en) * | 2018-08-02 | 2020-09-08 | 广东百林园林股份有限公司 | Garden slope greening method |
| CN110258589B (en) * | 2019-06-05 | 2021-07-20 | 中南林业科技大学 | Ecological slope protection structure for preventing and treating slump of expansive soil slope and construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE2919961A1 (en) * | 1979-05-17 | 1980-11-20 | Josef Ing Grad Nachtsheim | Waterway anti-erosion system using vegetation - has each plant anchored by arch shaped member with corrugated legs securing roots |
| CN101946626B (en) * | 2010-06-23 | 2014-08-13 | 西安信唯信息科技有限公司 | Road slope vegetation method |
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