CN106988324A - The method that root system joint bar strip reinforces expansive soil slope - Google Patents
The method that root system joint bar strip reinforces expansive soil slope Download PDFInfo
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- CN106988324A CN106988324A CN201710124645.XA CN201710124645A CN106988324A CN 106988324 A CN106988324 A CN 106988324A CN 201710124645 A CN201710124645 A CN 201710124645A CN 106988324 A CN106988324 A CN 106988324A
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- bar strip
- expansive soil
- soil slope
- root system
- reinforces
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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 the root system joint bar strip that the present invention is provided reinforces expansive soil slope, in the water draining and accumulating groove of the domatic structure lattice network type of expansive soil slope, the plant of interval plantation well developed root system in water draining and accumulating groove, the bar strip with tensile strength and absorbing and holding water property is implanted into perpendicular to side slope surface between adjacent two plant, the bar strip lower end passes through the top layer (soil layer easily infiltrated by rainfall infiltration) that expansive soil slope easily soaks, and implantation depth is reached inside the nexine of expansive soil slope hardly possible 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 field, and in particular to one kind takes 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 ftracture, and swelled ground softens during 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 easily fail mostly.Because swelled ground is afraid of water, expansion
Native slope project not only requirement can waterproof but also can draining, it is difficult by needing the ecological revetment with water curing to cause expansive soil slope
Method, carries out ecological protection such as spreading grass seeds, turfing, hydraulic sprinkle grass planting, Three-Dimensional Network Seeding, lattice beam framework grass planting.
Therefore there are two insoluble technical barriers in existing bulkhead tech, and one is to be difficult to solve current expansive soil slope using rigidity
There is the technical barrier of wet Swelling destructions in protection, two be to be difficult to change not supported with water (due to wet Swelling sex chromosome mosaicisms) 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, it can solve
The certainly wet Swelling destructions problem of expansive soil slope, and the situation that can not be managed using ecological revetment with water curing can be changed.
The content of the invention
It is an object of the invention to for the rigid bank protection of existing expansive soil slope engineering particularly ecological protection technology not
Foot is there is provided the method that a kind of 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, the root system joint bar strip that the present invention is provided reinforces the side of expansive soil slope
Method, the composition of its technical scheme mainly includes：Expansive soil slope domatic structure lattice network type be used for draining and retaining
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
The bar strip with tensile strength and absorbing and holding water property is implanted into side slope surface, the bar strip lower end passes through expansive soil slope
The top layer (soil layer easily infiltrated by rainfall infiltration) easily soaked, implantation depth is reached inside the nexine of expansive soil slope hardly possible 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).Waterproof membrane and the earthing on film preferably are laid in the two side of water draining and accumulating groove, to prevent
Only rainwater enters to blend ultraviolet irradiation from side wall.Groove slot bottom width priority acccess control is in 10~15cm scopes.
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 the native side slope of lower end expandable implant is preferably equivalent at least 80cm.
In the above-mentioned technical proposal of the present invention, the implantation of the bar strip can be taken first hangs down in expansive soil slope surface
Straight punching downwards, during then the press-in of bar strip one end is punched, makes bar strip be extended to along hole and pours into pine after bottom hole into hole
Dissipate 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 fine and close nylon ribbon, terylene ribbon or polypropylene fibre
2~4cm that ribbon makes or so wide band.
In the above-mentioned technical proposal of the present invention, the grid of the lattice network of water draining and accumulating groove arrangement is preferably square
Vertical interval between shape lattice or diamond-plaid, adjacent two parallel water draining and accumulating grooves is generally 1~1.5m scopes.
In the above-mentioned technical proposal of the present invention, its adjacent strain spacing of the plant planted in water draining and accumulating groove is generally 30~
40cm。
In the above-mentioned technical proposal of the present invention, the lattice network preferably arranged 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, for example shrub or
The draft class such as vetiver.
The method of the invention, which is capable of the native side slope rainfall of repression of swelling and produces the mechanics principle of dilatancy destruction, is：Rainfall
Side slope top layer swelled ground can be caused to produce upward expansive force q1, it is corresponding between internal layer hardly possible immersed soil mass and bar strip to produce one
Downward frictional force q2, so as to realize domatic 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, light rain is main to be stored), utilize the capillary force water holding of the bar strip of implantation
Root is filled.Rainfall runoff, which is collected under semiclosed (two side passes through waterproof membrane closure) 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 is due to micro-control water holding simultaneously, it is to avoid violent dry and wet
Expansion and cracking caused by circulation so that expansive soil slope water-proof drainage effect is good, the resistance to persistence of plant slope protection ecologic effect
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 with fast-growth, can penetrate the steady soil of bottom after a while under the maintenance of water holding, root system will be with lacing wire band winding
It is integral, so that consolidation effect can be improved, be conducive to conserving water and soil and the native bulking of repression of swelling.
3. in the method for the invention, network is gone along with sb. to guard him instead of traditional lattice girder by using plant combined water holding bar strip
Skeleton, using bar strip and the uplift effect of plant root, the protuberance of expansive soil slope and downslide caused by limitation rainfall, thus
The ecological protection of expansive soil slope is adapted to, the ecology and flexible protective of expansive soil slope is realized.
4. in the method for the invention, curing system it is simple in construction it is easy set up, reasonable in design, technique is simple, be easy to construction,
Easy to operate, cost is low, maintenance is easy, easy to spread, can be used for ecological protection and the greening of expansive soil slope.
Brief description of the drawings
Fig. 1 is the expansive soil slope surface top view after reinforcing of the present invention；
Fig. 2 is Fig. 1 A-A profiles；
Fig. 3 is the mechanics principle schematic diagram of the method for the invention.
In figure, 1-water draining and accumulating groove, 2-bar strip, 3-plant (vetiver or shrub), 4-expansive soil slope easily soaks
The top layer of water, the nexine of 5-expansive soil slope hardly possible immersion, 6-turf.
Embodiment
Combine the method work that bar strip reinforces expansive soil slope to root system of the present invention below by embodiment
Further illustrate.
Embodiment 1
The method that the root system joint bar strip of the present embodiment reinforces expansive soil slope, the composition of technical scheme includes, swollen
The water draining and accumulating groove 1 of the domatic structure lattice network type distribution of swollen native side slope, water draining and accumulating groove 1 is transversal for what is excavated on domatic
Face is the minor groove of inverted trapezoidal, and the two side laying waterproof membrane and earthing on film, ultraviolet to prevent from rainwater from from side wall entering blending
Line irradiates.Water draining and accumulating groove slot bottom width is about 10cm.The grid of the lattice network of water draining and accumulating groove arrangement is diamond-plaid,
Vertical interval between adjacent two parallel water draining and accumulating grooves is 1m or so.Vetiver, adjacent two are planted in water draining and accumulating groove
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 is the wide fine and close nylon ribbons of 3cm, and lower end passes through swelled ground
The top layer 4 that side slope is easily soaked, implantation depth reach expansive soil slope hardly possible immersion nexine 5 inside, bar strip lower end implantation depth
About 80cm.The method for implantation of bar strip is, first domatic downward is beaten with fluted drill or conehead reinforcing bar are vertical on expansive soil slope
Hole, during then the press-in of bar strip one end is punched with fluted drill or conehead reinforcing bar, makes bar strip be extended to along hole after bottom hole and pulls out
Go out fluted drill or conehead reinforcing bar, and pour 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 the lattice network of face water draining and accumulating groove arrangement.
Claims (10)
1. a kind of method that root system joint bar strip reinforces expansive soil slope, it is characterised in that in the domatic structure 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
Between strain the bar strip (2) with tensile strength and absorbing and holding water property, the bar strip lower end are implanted into perpendicular to side slope surface
The top layer (4) easily soaked through expansive soil slope, implantation depth reaches that the nexine (5) of expansive soil slope hardly possible immersion is internal.
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 laying waterproof membrane of groove and the earthing on film, to prevent rainwater from entering to blend ultraviolet 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. the method that the root system joint bar strip according to any claim in Claims 1 to 4 reinforces expansive soil slope, its
It is single bar strip or bunchy bar strip to be characterised by the bar strip, and the depth of lower end expandable implant soil side slope is at least
80cm。
6. the method that bar strip reinforces expansive soil slope is combined 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, during then the press-in of bar strip one end is punched, makes bar strip edge
Hole, which is extended 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
With the wide fine and close bands of the 2~4cm made for nylon, terylene or polypropylene fibre ribbon.
8. the method that the root system joint bar strip according to any claim in Claims 1 to 4 reinforces expansive soil slope, its
The grid for being characterised by the lattice network of arrangement retaining groove is square lattice or diamond-plaid, adjacent two parallel water draining and accumulatings
Vertical interval between groove is 1~1.5m.
9. the method that the root system joint bar strip according to any claim in Claims 1 to 4 reinforces expansive soil slope, its
It is 30~40cm to be characterised by its adjacent strain spacing of plant planted in water draining and accumulating groove.
10. the method that the root system joint bar strip according to any claim in Claims 1 to 4 reinforces expansive soil slope,
It is characterized in that side slope surface water draining and accumulating groove arrange lattice network grid in Turf Culture (6).
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 true CN106988324A (en) | 2017-07-28 |
| CN106988324B CN106988324B (en) | 2018-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109042103A (en) * | 2018-08-02 | 2018-12-21 | 广东百林园林股份有限公司 | A kind of gardens Slope greening method |
| CN110258589A (en) * | 2019-06-05 | 2019-09-20 | 中南林业科技大学 | A kind of ecological slope protection structure and construction method of the prevention and treatment of expansive soil slope sloughing |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101946626A (en) * | 2010-06-23 | 2011-01-19 | 西安信唯信息科技有限公司 | Road slope vegetation method |
-
2017
- 2017-03-03 CN CN201710124645.XA patent/CN106988324B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101946626A (en) * | 2010-06-23 | 2011-01-19 | 西安信唯信息科技有限公司 | Road slope vegetation method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109042103A (en) * | 2018-08-02 | 2018-12-21 | 广东百林园林股份有限公司 | A kind of gardens Slope greening method |
| CN110258589A (en) * | 2019-06-05 | 2019-09-20 | 中南林业科技大学 | A kind of ecological slope protection structure and construction method of the prevention and treatment of expansive soil slope sloughing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106988324B (en) | 2018-09-14 |
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