CN108560571A - A kind of expansive soil slope supporting construction and construction method - Google Patents
A kind of expansive soil slope supporting construction and construction method Download PDFInfo
- Publication number
- CN108560571A CN108560571A CN201810175264.9A CN201810175264A CN108560571A CN 108560571 A CN108560571 A CN 108560571A CN 201810175264 A CN201810175264 A CN 201810175264A CN 108560571 A CN108560571 A CN 108560571A
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- China
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- layer
- pervious concrete
- concrete layer
- expansive soil
- back fill
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Classifications
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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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/002—Concrete
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0084—Geogrids
Abstract
The invention discloses a kind of expansive soil slope supporting construction and construction methods, it solves the problems, such as that the supporting of expansive soil slope is easily destroyed failure, can effectively solve the problems of crack that outside moisture enters slope soil and safeguard structure, and technical solution is：Including permeable drain assembly and vegetative protection component；The permeable drain assembly includes the waterproof geotextiles being arranged on expansive soil slope, and pervious concrete layer is arranged in waterproof geotextiles；The vegetative protection component includes the back fill course being set in pervious concrete layer, and vegetable layer is arranged on back fill course.
Description
Technical field
The present invention relates to technical field of civil engineering, more particularly to a kind of expansive soil slope supporting construction and construction party
Method.
Background technology
Swelled ground is a kind of soil containing hydrophilic mineral, and when it is by water-soaked, significantly expansion and intensity occur for volume
Reduce rapidly and be disintegrated, soften, scour resistance it is poor；The soil body is reduced significantly when dry dehydration, and soil property is hard to have apparent crack easy
The process of fragmentation, swelled ground water swelling and dehydration shrinkage is reversible.Since its destruction is notable, in the traffic engineering of early stage
In, or even obtained the conclusion of " meeting moat that must collapse, no dike does not collapse ", reflect that its destructive power is big.
Current existing Treatment Scheme is mostly rigid protection.Rigid protection refers to based on masonry structure, and being aided with other must
The processing scheme for the integrated treatment measure wanted.Though these slope protection measures can obtain centainly as the protection of expansive soil slope
Short-term defences effect, but under the drying and watering cycles such as weather, rainfall effect, the swell-shrinking deformation of slope soil will cause safeguard structure to be opened
It splits.Outside moisture inevitably enters slope soil, the experience cycle of breathing for several times along gap, and protection system is destroyed, prevented
Protection structure fails.
In conclusion the problem of being easily destroyed failure for the supporting of expansive soil slope in the prior art, still lacks effective
Solution.
Invention content
In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides a kind of expansive soil slope supporting construction and construction parties
Method can effectively solve the problems of crack that outside moisture enters slope soil and safeguard structure.
Further, the present invention uses following technical proposals：
A kind of expansive soil slope supporting construction, including permeable drain assembly and vegetative protection component；
The permeable drain assembly includes the waterproof geotextiles being arranged on expansive soil slope, is arranged in waterproof geotextiles saturating
Water coagulation soil layer；
The vegetative protection component includes the back fill course being set in pervious concrete layer, and vegetation is arranged on back fill course
Layer.
Further, it is additionally provided with geogrids layer between the pervious concrete layer and back fill course.
Further, the geogrids layer is overlapped by multiple direction earthwork grilles.
Further, it is fixedly connected by staple between the adjacent direction earthwork grille.
Further, the thickness of the pervious concrete layer is 30-50cm.
Further, the thickness of the back fill course is 20-30cm.
For overcome the deficiencies in the prior art, the present invention provides a kind of construction method of expansive soil slope supporting construction,
Include the following steps：
(1) smooth to clearing up slope surface after expansive soil slope excavation, it is laid with waterproof geotextiles in slope surface；
(2) pervious concrete layer is poured in waterproof geotextiles, after the completion of pouring, carries out the moisture-keeping maintaining of setting duration；
(3) after conserving, geogrids layer is laid in pervious concrete layer；
(4) it backfills to plough in geogrids layer and plants soil, form back fill course, green vegetation is planted on back fill course.
Further, in described (2), pervious concrete layer is made of cementing agent, rubble, cement and water, and each ingredient is matched
Composition and division in a proportion is：Water:Cement:Cementing agent:Rubble=110:310:100:1500.
Further, in described (2), is being conserved to pervious concrete layer early period, it is horizontal and vertical to pervious concrete layer
Joint-cutting processing is carried out, the spacing of joint-cutting is 3-5m, and the width of joint-cutting is 2-3cm.
Further, in described (3), be laid with geogrids layer the specific steps are：
Direction earthwork grille is paved from bottom to top, tensioning is carried out using drill rod, is fixed its end with staple；It is adjacent
Setting is overlapped between two width direction earthwork grilles, is fixed with staple in overlapping part.
Further, in described (4), plant green vegetation the specific steps are：
After the completion of backfill, hydraulic sprinkle is carried out, i.e., by grass-seed and adhesive agent, wood-fibred, fertilizer, auxin, moisturizer
And water is mixed by setting ratio, is formed uniform mixed liquor, is uniformly sprayed on back fill course by hydraulic sprinkle machine.
Further, if ambient temperature is less than setting value, after the completion of Spray turfing is constructed, nonwoven is covered on side slope surface
Cloth.
Compared with prior art, the beneficial effects of the invention are as follows：
Pervious concrete layer is set in the slope retaining structure of the present invention, with gap structure, sole mass is lighter；No
Only it is conducive to permeable, reduces rainwater and enter the pore water pressure of pervious concrete layer, moreover it is possible to the drainage blanket penetrated through from top to bottom is formed, it is fast
Rainwater is discharged speed, reduces soil body dead weight, plays the role of soil and slope protection.
The present invention combines pervious concrete layer and geogrids layer, vegetable layer, forms the compound of entirety together and adds
Muscle layer, the composite reinforced layer have compatible deformation, and abatement slope runoff, solid native protection against erosion, fast quick-recovery Highways ' is ecological, green
The function of changing side slope, beautify the environment.
The lateral deformation for the geogrids layer energy operative constraint soil body being arranged in the present invention, enhances the globality of the soil body；Soil
The connection of frictional force and snap-in force and TGXG interlayer and anti-package between work grid and backfill, make reinforcing body structure have
Good globality and stability.
Green vegetation is arranged in the present invention on back fill course, can effectively prevent soil erosion, plays the work of ecological revetment
With.
Description of the drawings
The accompanying drawings which form a part of this application are used for providing further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation do not constitute the improper restriction to the application for explaining the application.
Fig. 1 is the schematic diagram of expansive soil slope supporting construction of the present invention；
In figure, 1 expansive soil slope, 2 waterproof geotextiles, 3 pervious concrete layers, 4 geogrids layers, 5 back fill courses, 6 plant
Tegillum.
Specific implementation mode
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific implementation mode, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or combination thereof.
Term explains part：Swelled ground is a kind of soil containing hydrophilic mineral, and when it is by water-soaked, volume occurs notable
Expansion and intensity reduce rapidly and are disintegrated, soften, scour resistance is poor；The soil body is reduced significantly when dry dehydration, the hard tool of soil property
There is an easy fragmentation in apparent crack, the process of swelled ground water swelling and dehydration shrinkage is reversible.
As background technology is introduced, the supporting that expansive soil slope exists in the prior art is easily destroyed asking for failure
Topic, in order to solve technical problem as above, present applicant proposes a kind of expansive soil slope supporting construction and construction methods.
In a kind of typical embodiment of the application, as shown in Figure 1, a kind of expansive soil slope supporting construction is provided,
Including permeable drain assembly and vegetative protection component；
The permeable drain assembly includes the waterproof geotextiles 2 being arranged on expansive soil slope 1, is set in waterproof geotextiles 2
Set pervious concrete layer 3；
The vegetative protection component includes the back fill course 5 being set in pervious concrete layer 3, is arranged on back fill course 5
Vegetable layer 6.
Pervious concrete layer has gap structure, sole mass lighter.Not only be conducive to it is permeable, reduce rainwater enter it is permeable mixed
The pore water pressure of solidifying soil layer, moreover it is possible to form the drainage blanket penetrated through from top to bottom, rainwater is discharged rapidly, reduce soil body dead weight, rise
To the effect of soil and slope protection.The present invention is introduced into pervious concrete layer the protection of expansive soil slope, in conjunction with TGXG
And vegetation, a composite reinforced layer is formed together, which has compatible deformation, abatement slope runoff, solid native erosion control
Brush, fast quick-recovery Highways ' ecology, green side slope, the function of beautifying the environment.
Geogrids layer 4 is additionally provided between the pervious concrete layer 3 and back fill course 5.
The geogrids layer 4 is overlapped by multiple direction earthwork grilles.
It is fixedly connected by staple between the adjacent direction earthwork grille.
The thickness of the pervious concrete layer 3 is 30-50cm.
The thickness of the back fill course 5 is 20-30cm.
In the typical embodiment of another kind of the application, a kind of construction party of expansive soil slope supporting construction is provided
Method includes the following steps：
(1) smooth to clearing up slope surface after the excavation of expansive soil slope 1, it is laid with waterproof geotextiles 2 in slope surface；
(2) pervious concrete layer 3 is poured in waterproof geotextiles 2, after the completion of pouring, the moisturizing for carrying out setting duration is supported
Shield；
(3) after conserving, geogrids layer 4 is laid in pervious concrete layer 3；
(4) it backfills to plough in geogrids layer 4 and plants soil, form back fill course 5, green vegetation is planted on back fill course 5,
Form vegetable layer 6.
Specifically, in (2), pervious concrete layer 3 is made of cementing agent, rubble, cement and water, the cooperation of each ingredient
Than for：Water:Cement:Cementing agent:Rubble=110:310:100:1500.
Specifically, in (2), is being conserved to pervious concrete layer 3 early period, it is horizontal and vertical to pervious concrete layer 3
Joint-cutting processing is carried out, the spacing of joint-cutting is 3-5m, and the width of joint-cutting is 2-3cm.
Specifically, in (3), be laid with geogrids layer 4 the specific steps are：
Direction earthwork grille is paved from bottom to top, tensioning is carried out using drill rod, is fixed its end with staple；It is adjacent
Setting is overlapped between two width direction earthwork grilles, is fixed with staple in overlapping part.
Specifically, in (4), plant green vegetation the specific steps are：
After the completion of backfill, hydraulic sprinkle is carried out, i.e., by grass-seed and adhesive agent, wood-fibred, fertilizer, auxin, moisturizer
And water is mixed by setting ratio, is formed uniform mixed liquor, is uniformly sprayed on back fill course 5 by hydraulic sprinkle machine.
If ambient temperature is less than setting value, after the completion of Spray turfing is constructed, non-woven fabrics is covered on side slope surface.
In order to enable those skilled in the art can clearly understand the technical solution of the application, below with reference to tool
The technical solution of the application is described in detail in the embodiment of body.
The present invention for expansive soil slope carry out supporting working measure be：
(1) expansive soil slope excavate after slope surface is cleared up it is smooth, slope surface be laid with waterproof geotextiles, prevent rainwater infiltration into
Enter slopes and influences stability of slope.
(2) and then in waterproof geotextiles pervious concrete layer, thickness 30-50cm are poured.Pervious concrete layer is by saturating
The special cementing agent of water coagulation soil, rubble, cement and water composition, cement selection C42.5 or more labels.Pervious concrete is by permeable
Concrete mix：(by mass) water：Cement：Cementing agent：Rubble=110:310:100:1500.After the completion of pouring, carry out
28 days moisture-keeping maintainings.In order to avoid pervious concrete layer generates dilatation and sedimentation, to permeable in first week of maintenance
The spacing of the horizontal and vertical progress joint-cutting processing of concrete, joint-cutting is 3-5m, and the width of joint-cutting is 2-3cm.
(3) after pervious concrete layer maintenance, it is laid with one layer of direction earthwork grille on it.TGXG can effectively about
The lateral deformation of Shu Tuti enhances the globality of the soil body.TGXG and banket frictional force and snap-in force and TGXG
The connection of interlayer and anti-package make reinforcing body structure have good globality and stability.By TGXG stall with goods spread out on the ground for sale from bottom to top
Paving, carries out tensioning with drill rod, is fixed its end with staple.In order to ensure the globality of TGXG, between two width TGXG
It needing to overlap, lap width 5cm is used in combination staple to be fixed in overlapping part, after tail portion is fixed, the spacing of intermediate position staple
For 1.2m.
(4) backfill, which is ploughed, plants soil.The thickness of backfill is 20-30cm.Green vegetation is planted in backfill, effectively prevent water and soil
It is lost in, plays the role of ecological revetment.Earthing backfill finishes, and carries out hydraulic sprinkle, i.e., by grass-seed and the attachment for promoting growth
Agent, wood-fibred, fertilizer, auxin, moisturizer and water are mixed in a certain ratio stirring, form uniform mixed liquor, are sprayed by hydraulic pressure
Machine is broadcast uniformly to be sprayed in slope surface.Grass-seed is generally sowing vegetable seeds, such as：The busy bromegrass of Trifolium repense, Festuca Arundinacea, nothing, dog tooth
Root, paspalum notatum, Korea lawn grass etc. it is one or more.
(5) after Spray turfing construction is completed, non-woven fabrics is covered on side slope surface, to keep slope surface moisture and reduce rainfall
Seed is washed away, seed growth is promoted.If temperature is too high, without covering, in order to avoid the generation of pest and disease damage.
The foregoing is merely the preferred embodiments of the application, are not intended to limit this application, for the skill of this field
For art personnel, the application can have various modifications and variations.Within the spirit and principles of this application, any made by repair
Change, equivalent replacement, improvement etc., should be included within the protection domain of the application.
Claims (10)
1. a kind of expansive soil slope supporting construction, characterized in that including permeable drain assembly and vegetative protection component；
The permeable drain assembly includes the waterproof geotextiles being arranged on expansive soil slope, is arranged in waterproof geotextiles permeable mixed
Solidifying soil layer；
The vegetative protection component includes the back fill course being set in pervious concrete layer, and vegetable layer is arranged on back fill course.
2. expansive soil slope supporting construction as described in claim 1, characterized in that the pervious concrete layer and back fill course
Between be additionally provided with geogrids layer.
3. expansive soil slope supporting construction as claimed in claim 2, characterized in that the geogrids layer is by multiple two-way soil
Work grid overlaps.
4. expansive soil slope supporting construction as claimed in claim 3, characterized in that lead between the adjacent direction earthwork grille
Staple is crossed to be fixedly connected.
5. expansive soil slope supporting construction as described in claim 1, characterized in that the thickness of the pervious concrete layer is
30-50cm；The thickness of the back fill course is 20-30cm.
6. the construction method of expansive soil slope supporting construction as described in any one in claim 1-5, characterized in that including following
Step：
(1) smooth to clearing up slope surface after expansive soil slope excavation, it is laid with waterproof geotextiles in slope surface；
(2) pervious concrete layer is poured in waterproof geotextiles, after the completion of pouring, carries out the moisture-keeping maintaining of setting duration；
(3) after conserving, geogrids layer is laid in pervious concrete layer；
(4) it backfills to plough in geogrids layer and plants soil, form back fill course, green vegetation is planted on back fill course.
7. construction method as claimed in claim 6, characterized in that in (2), pervious concrete layer by cementing agent, rubble,
Cement and water composition, the match ratio of each ingredient are：Water:Cement:Cementing agent:Rubble=110:310:100:1500.
8. construction method as claimed in claim 6, characterized in that in (2), is being conserved to pervious concrete layer early period,
The spacing of progress joint-cutting processing horizontal and vertical to pervious concrete layer, joint-cutting is 3-5m, and the width of joint-cutting is 2-3cm.
9. construction method as claimed in claim 6, characterized in that in (3), be laid with the specific steps of geogrids layer
For：
Direction earthwork grille is paved from bottom to top, tensioning is carried out using drill rod, is fixed its end with staple；Adjacent two width
Setting is overlapped between direction earthwork grille, is fixed with staple in overlapping part.
10. construction method as claimed in claim 6, characterized in that in (4), plant green vegetation the specific steps are：
After the completion of backfill, hydraulic sprinkle is carried out, i.e., by grass-seed and adhesive agent, wood-fibred, fertilizer, auxin, moisturizer and water
It is mixed by setting ratio, forms uniform mixed liquor, be uniformly sprayed on back fill course by hydraulic sprinkle machine；
If ambient temperature is less than setting value, after the completion of Spray turfing is constructed, non-woven fabrics is covered on side slope surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810175264.9A CN108560571A (en) | 2018-03-02 | 2018-03-02 | A kind of expansive soil slope supporting construction and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810175264.9A CN108560571A (en) | 2018-03-02 | 2018-03-02 | A kind of expansive soil slope supporting construction and construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108560571A true CN108560571A (en) | 2018-09-21 |
Family
ID=63532306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810175264.9A Withdrawn CN108560571A (en) | 2018-03-02 | 2018-03-02 | A kind of expansive soil slope supporting construction and construction method |
Country Status (1)
| Country | Link |
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| CN (1) | CN108560571A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110016921A (en) * | 2019-03-29 | 2019-07-16 | 宁夏首创海绵城市建设发展有限公司 | Edge slope structure and side slope construction method |
| CN113529757A (en) * | 2021-08-24 | 2021-10-22 | 山东省交通科学研究院 | Step type water permeability building rubbish slope supporting structure and construction method |
-
2018
- 2018-03-02 CN CN201810175264.9A patent/CN108560571A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110016921A (en) * | 2019-03-29 | 2019-07-16 | 宁夏首创海绵城市建设发展有限公司 | Edge slope structure and side slope construction method |
| CN113529757A (en) * | 2021-08-24 | 2021-10-22 | 山东省交通科学研究院 | Step type water permeability building rubbish slope supporting structure and construction method |
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Application publication date: 20180921 |
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