CN105152588B - Loess highway side slope surface protective materials and preparation - Google Patents
Loess highway side slope surface protective materials and preparation Download PDFInfo
- Publication number
- CN105152588B CN105152588B CN201510632439.0A CN201510632439A CN105152588B CN 105152588 B CN105152588 B CN 105152588B CN 201510632439 A CN201510632439 A CN 201510632439A CN 105152588 B CN105152588 B CN 105152588B
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- China
- Prior art keywords
- loess
- protective materials
- side slope
- slope surface
- highway side
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention discloses a kind of loess highway side slope surface protective materials, belong to loess highway side slope surface protection association area, the protective materials is according to 100 by loess, reinforcement material, modifying agent and water:0.3~0.5:5~8:35~38 proportioning is mixed, the protective materials manufacture craft of the present invention is simple, equipment requirement is low, preferably gathers materials on the spot, lower cost for material, construction technology is easy, quick, shearing strength, the scour resistance of the domatic soil body can be significantly improved, its permeability, disintegrative is reduced, with the raising domatic erosion resistance of loess slope, optimize slope protection outward appearance, the advantages of reaching ecological protection effect.
Description
Technical field
The invention belongs to loess highway side slope surface protection association area, and in particular to one kind can improve domatic Anti-erosion energy
Power, the loess highway side slope surface protective materials for optimizing slope protection outward appearance and preparation.
Background technology
West area is the loess great Qu of China, and along with the development of highway construction, loess highway slope problem is also more next
It is more.Roadbed construction can form substantial amounts of excavation and embankment in highway construction, and this has resulted in the artificial destruction to loess slope,
Rare plus Canal in Loess Area vegetation, dry, rainfall is concentrated, and it is more and more universal that loess highway side slope surface washes away problem, its
Harm is also increasingly serious, therefore receives more attention to the protection and reinforcing of loess highway side slope.
Current highway in China side slope widely uses various engineering protections and plant protection, all in all, and two major classes are protected all
There are many weak points.Engineering full protection landscaping effect is poor, and engineering economy is also poor, and difficulty of construction is big, causes very big
Engineering is wasted；And plant protection is difficult to ensure the stability of side slope, such as soil property is bad, the area that rainfall concentration, rainfall are big,
With being oozed under rainwater, slope soil is disintegrated, and soil strength declines, and then causes the sliding and destruction of slopes, plants in addition
Thing protection needs preferable care environments, in the Northwest of drought, the living environment of plant is severe, and plant protection is supported
Shield is just relatively difficult, and economy is unreasonable.Accordingly, it would be desirable to which further research protection effect is good, financial cost is low, construction is again convenient
Slope protection material.
The content of the invention
In order to overcome the shortcomings of that current loess highway side slope surface protection is present, engineering money is saved the invention provides one kind
Source, at utmost improves the erosion resistance of slope protection material, reduces or reduces domatic disease development and spread, it is ensured that slopes
Local stability loess highway side slope surface protective materials.
Present invention also offers the preparation method of above-mentioned loess highway side slope surface protective materials.
The present invention realizes that the technical scheme that above-mentioned purpose is used is：In terms of proportion by weight, its by following proportioning original
Material composition：
Described reinforcement material is wheat straw fibre, and described modifying agent is quick lime.
30~50mm of length of above-mentioned wheat straw fibre, length for 30~40mm fiber account for total fiber amount 50%~
70%, length accounts for the 30%~50% of total fiber amount for 40~50mm fiber.
Particle diameter≤2mm of above-mentioned loess.
The protective thickness of above-mentioned protective materials is 8~10cm.
Above-mentioned protective materials by it is artificial sow grass seeds by duster mechanically direct smearing or spray to be put on loess slope domatic.
The preparation method of above-mentioned loess highway side slope surface protective materials is by matter by loess, reinforcement material and modifying agent
Amount proportioning is sequentially added in mixer, and 3~5min of uniform stirring adds water by proportioning, is stirred 5~8min, that is, is obtained loess slope
Slope protection material.
A kind of loess highway side slope surface protective materials provided by the present invention is that, using intact loess as matrix, Wheat Straw is fine
Tie up as reinforcement material, quick lime is the composite made by modifying agent, makes full use of wheat straw fibre to improve the soil body
Shearing strength and non-deformability, reduce the infiltrative advantage of the soil body, while by the use of quick lime as modifying agent, not only can be with
Strengthen soil strength, the bond effect between wheat straw fibre and the soil body can also be improved, the water for further improving the soil body is stable
Property and antiscour performance, be the effective ways for improving the domatic soil body anti-erosion property of loess slope, and from construction technology and
The aspect of the Erosion Mechanism domatic to loess slope two sets about research, to save engineering resource, using renewable resource, at utmost
Improve the erosion resistance of slope protection material, beautify slope protection outward appearance, reduce or reduce domatic disease development and spread, protect
The local stability of slopes is demonstrate,proved, suitable for popularization and application.
Compared with the prior art, the advantage of this technology invention：
(1) loess highway side slope surface protective materials of the present invention is a kind of protective materials of easy construction, can be by artificial
Or to be put on loess slope domatic for sow grass seeds by duster mechanically direct smearing or spray.
(2) present invention has especially selected a kind of natural reinforcement material, i.e. wheat straw fibre, and wheat straw fibre has certain
Tensile strength and extensibility, with the present invention added with modifying agent collective effect under, the anti-of protective materials can be significantly improved
Intensity, erosion resistance are cut, permeability, the disintegrative of protective materials is reduced.
(3) loess highway side slope surface protective materials of the present invention could be formed with the waterproof of effect to the poor permeability of rainwater
Layer, waterproof effect is good, and rainwater quickly forms runoff on its surface, reduces the adverse effect that rainwater infiltration is caused to slopes.
(4) present invention is applicable the loess highway side slope surface to newly excavating or such as domatic peeling, coombe, overboard has occurred
The domatic of the diseases such as cave is protected.
(5) loess highway side slope surface protective materials preparation technology of the present invention is simple, with low cost, economizes on resources, and constructs
Easy, quick, resource ecology environmental protection, using effect is obvious.
Embodiment
In order to be better understood from the present invention, material is protected to loess highway side slope surface of the present invention below by following embodiments
Material and its application are described in detail.
The loess used in embodiment 1~4 is the intact loess through smashing 2mm sieves to pieces, and wheat straw fibre is new when producing per year
Fresh straw, removes withered wheat leaf, is cut into 30~50mm length.
Embodiment 1
The present embodiment is related to a kind of loess highway side slope surface protective materials, and it is made up of the raw material of following mass ratio：It is yellow
Soil：Reinforcement material：Modifying agent：Water=100:0.5:6:37.
The preparation of the slope protection material is：Sieving intact loess 160kg is taken, wheat straw fibre 800g, wherein length are
50mm wheat straw fibre is 400g, and length is 400g, quick lime 9.6kg for 30mm wheat straw fibre, sequentially adds stirring
In machine, uniform stirring 5min, then 59.2kg water is added by quality proportioning, 7min is stirred, shield is sprayed in loess using spray seeder
On slope of highway is domatic, thickness is 9cm, uses geotextiles covering curing, produces the protective materials.
Implementation result：After protective materials prepared by this example was by normal maintenance 20 days, the shearing strength of the protective materials refers to
Mark cohesive strength improves about 4.12 times than intact loess, and internal friction angle improves about 1.53 times；Osmotic coefficient ratio intact loess
Reduce about 100 times, disintegration coefficient ratio intact loess reduces about 3.74 times, antiscour coefficient ratio intact loess is improved
About 2.56 times.
Embodiment 2
The present embodiment is related to a kind of loess highway side slope surface protective materials, and the slope protection material is by following mass ratio
Raw material is constituted：Loess：Reinforcement material：Modifying agent：Water=100:0.31:8:35.
The preparation of the slope protection material：Sieving intact loess 160kg is taken, wheat straw fibre 496g, wherein length are
That 40mm is 200g, and length is 296g, quick lime 12.8kg for 35mm's, is sequentially added in mixer, uniform stirring 4min is pressed
Mass ratio adds 56kg water, stirs 5min, is sprayed shield on loess slope is domatic using spray seeder, thickness is 8cm, with soil
Work cloth covering curing, produces the protective materials.
Implementation result：After protective materials prepared by this example is normally conserved 20 days, the Shear Strength Index of protective materials is glued
Poly- power improves about 2.93 times than intact loess, and internal friction angle improves about 1.41 times；The reduction of osmotic coefficient ratio intact loess
About 20 times, disintegration coefficient reduces about 3.39 times, and antiscour coefficient improves about 1.45 times.
Embodiment 3
The present embodiment is related to a kind of loess highway side slope surface protective materials, is made up of the raw material of following mass ratio：Loess：
Reinforcement material：Modifying agent：Water=100:0.5:5:36.
The use of the slope protection material：Sieving intact loess 160kg is taken, wheat straw fibre 800g, wherein length are
45mm 240g, length is 35mm 560g, quick lime 8kg, is sequentially added in mixer, uniform stirring 4min, in mass ratio
Add 57.6kg water, stir 8min, be manually applied to loess slope it is domatic on, thickness is 10cm, is covered with geotextiles
Maintenance, produces protective materials.
Implementation result：After protective materials prepared by this example was by normal maintenance 20 days, the Shear Strength Index of protective materials
Cohesive strength improves about 3.88 times than intact loess, and internal friction angle improves about 1.36 times；The drop of osmotic coefficient ratio intact loess
Low about 100 times, disintegration coefficient ratio intact loess reduces about 3.62 times, and antiscour coefficient ratio intact loess is improved about
1.94 again.
Embodiment 4
The present embodiment is related to a kind of loess highway side slope surface protective materials, and it is made up of the raw material of following mass ratio：It is yellow
Soil：Reinforcement material：Modifying agent：Water=100:0.4:5:38.
The use of the slope protection material is as follows：Take sieving intact loess 160kg, wherein wheat straw fibre 640g, fiber
Length 45mm 300g, length 38mm 340g, quick lime 8kg, are sequentially added in mixer, stir 3min, in mass ratio again
60.8kg water is added, 6min is stirred, shield is sprayed on loess slope is domatic using spray seeder, thickness is 8.5cm, uses geotextiles
Covering curing, produces protective materials.
Implementation result：Protective materials prepared by this example with mechanical spray of sowing grass seeds by duster be put on loess slope it is domatic on, smear thick
Degree is 8.5cm, and after normal maintenance 20 days, the Shear Strength Index cohesive strength of protective materials improves about 3.05 than intact loess
Times, internal friction angle improves about 1.35 times；Osmotic coefficient ratio intact loess reduces about 50 times, is disintegrated coefficient ratio intact loess
Reduce about 3.32 times, antiscour coefficient ratio intact loess improves about 1.86 times.
Claims (1)
1. a kind of loess highway side slope surface protective materials, it is characterised in that constituted with the raw material of following proportion by weight：
The length 30 and 50mm of above-mentioned wheat straw fibre, length account for the 50% of total fibre mass for 30mm fiber, and length is
50mm fiber accounts for the 50% of total fibre mass；Particle diameter≤2mm of above-mentioned loess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510632439.0A CN105152588B (en) | 2015-09-29 | 2015-09-29 | Loess highway side slope surface protective materials and preparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510632439.0A CN105152588B (en) | 2015-09-29 | 2015-09-29 | Loess highway side slope surface protective materials and preparation |
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| Publication Number | Publication Date |
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| CN105152588A CN105152588A (en) | 2015-12-16 |
| CN105152588B true CN105152588B (en) | 2017-11-07 |
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| CN201510632439.0A Expired - Fee Related CN105152588B (en) | 2015-09-29 | 2015-09-29 | Loess highway side slope surface protective materials and preparation |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105625444A (en) * | 2016-03-14 | 2016-06-01 | 攀枝花学院 | Impermeable surface layer structure for soil slope |
| CN111233380A (en) * | 2020-02-24 | 2020-06-05 | 长安大学 | Loess slope surface protection material and preparation and use method thereof |
| CN111377693A (en) * | 2020-04-30 | 2020-07-07 | 辽宁工程技术大学 | Method for using modified mine waste soil material for preventing scouring of slope surface of refuse dump |
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| JP3046973B2 (en) * | 1995-04-18 | 2000-05-29 | 建設省土木研究所長 | Mixing method of defibrated short fiber and soil, and mixing device |
| CN100427687C (en) * | 2005-08-05 | 2008-10-22 | 贾燎 | Slope support method by compacting soil-lime to form cushion solid |
| CN100439605C (en) * | 2006-07-25 | 2008-12-03 | 南京大学 | Chopped fiber reinforced rendzinas ground treatment method |
| CN102251515A (en) * | 2011-05-05 | 2011-11-23 | 天津城市建设学院 | Reinforced saline soil with wheat straw and solidifying method thereof |
| CN104846807A (en) * | 2015-04-09 | 2015-08-19 | 天津城建大学 | Polypropylene fiber ribbed salinized soil and curing method thereof |
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Granted publication date: 20171107 Termination date: 20180929 |