CN103924606B - The basalt fibre of powdery soil slope combines antiscour protection construction method with polyvinyl alcohol - Google Patents
The basalt fibre of powdery soil slope combines antiscour protection construction method with polyvinyl alcohol Download PDFInfo
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Abstract
The basalt fibre of powdery soil slope combines antiscour protection construction method with polyvinyl alcohol, relates to Geotechnical Engineering side slope protection technical field.The present invention includes adopting silt, basalt fibre, the domatic antiscour overcoat of three layers stratification of modified polyvinylalcohol composite soil and design and construction method thereof, its mesexine overcoat: common sow grass seeds by duster or alien earth sparging grass planting layer (0.5～2cm)；Middle level overcoat: silt, short basalt fiber (6mm～20mm), modified polyvinylalcohol containing plant nutrition liquid mixed layer (2～5cm)；Ground shield layer: silt, basalt long fiber (20mm～30mm) mixed layer (5～15cm).The present invention merges grass planting, reinforcement, the multiple antiscour technological means of firming agent, easily there is soil erosion phenomenon when rainfall erosion mainly for powdery soil slope, have meet low-carbon green environmental protection, construct convenient, cheap, take into account that increasing is steady, antiscour, greening integrated advantageous feature.
Description
Technical field
The present invention relates to a kind of basalt fibre and combine antiscour side slope protection technology and construction method thereof with polyvinyl alcohol, belong to Geotechnical Engineering side slope protection technical field.Soil erosion phenomenon is easily there is when rainfall erosion mainly for powdery soil slope, thus causing the situation of erosion damage, convenient more aobvious advantage that greening and antiscour are united two into one of especially constructing in silt side slope of embankment protects.
Background technology
The erosion damage on side slope surface is one of modal disease of powdery soil slope.The granularmetric composition of silt is based on powder and fine sand, and clay content is few, and therefore the specific surface area of silt is little, and ion exchange is little.The liquid limit of silt and plasticity index are little, time dry easily crushed, airborne dust big, not easy-formation, construction rolling is easily generated imbricate passage and lamination；Easily quickly drenched again during immersion, be there is stream soil feature, erosion resistance ability.Therefore under condition of raining, the slope runoff of powdery soil slope can wash away the domatic top layer soil body, and then affects the long-time stability of powdery soil slope.
1., plant protection side slope scouring-resistance means of defence is broadly divided into four classes,；2., bricklaying+plant protection；3., Earthworking reinforced bar+plant protection；4., firming agent+plant protection.Plant protection, including kind of a grass, plants grass, turfing and tree planting etc..The fast industrialization construction technology of grass planting is mainly Seed spraying technology, adopts hydraulic sprinkle method, and selecting of grass seeds is main according to local soil and weather conditions, selects well developed root system, resistance to low level management, drought-enduring kind.Seed spraying technology uses special plant equipment, and by seed, soil moved in improve the original, water-keeping material, granule agent, stabilizer, bulk material, fertilizer etc. mix, and spray is placed in side slope surface, makes soil moved in improve the original formation table at steady-state soil.The antiscour effect of grass planting is mainly: 1., utilize root system of plant to form reinforcement fixation；2., plant leaf can reduce in rainfall raindrop to domatic impact strength；3., strengthen rainfall infiltration amount, reduce the scouring force of overland flow.The shortcoming of grass planting protection is solid soil depth as shallow, Gu soil intensity is weak.Bricklaying+plant protection, bricklaying protection adopts the materials such as mortar flag stone, cast-in-place concrete, French interlocking type concrete precast block, Japanese rectangle concrete precast block to carry out grid laying on side slope surface.Plant protection carries out the plant protection such as grass planting, tree planting in the grid neutral gear that bricklaying is protected.The most general in real project of these safeguard procedures, effect is best.But a disadvantage is that cost is high, construction is tired, silt difficulty is closely knit, structure is easy to crack.Earthworking reinforced bar+plant protection, mainly three V dimensional grass planting on net technology.The cut slope and the ratio of slope that delay in 1:1 suitable in slope gradient delay the side slope of embankment in 1:1.5.Three-dimensional earthwork selects layer stereo geotechnique's gauze pad, and backfill soil adopts local cohesive soil in three-dimensional earthwork bag, adds appropriate fertilizer, water-retaining agent, binding agent, it is ensured that its permeability, water-retaining property and caking property, is beneficial to grass bank up the roots of seedlings growth.The Main Function of reinforcement is: muscle material limits the deformation of soil with native rubbing action, improves the shearing strength of the soil body.Shortcoming is often to occur along washing away sliding rupture between grid and basic unit face.Firming agent+plant protection, adds the different firming agent such as conventional inorganic firming agent, cationic cure agent, organic curing agent inside silt, to reaching to improve the antiscour intensity of silt.The domatic multiple green engineering still adopting plant protection.Shortcoming: 1., conventional curing agents, is unfavorable for mixing use with plant protection, does not meet green requirement；2., cationic cure agent, there is certain pollution effect, do not meet environmental requirement；3., organic curing agent, poor effect, cost is high.
In sum, powdered road base side slope very easily by rain drop erosion, as protection method effect undesirable.After plant reinforcement protection, domatic still destroy；Bricklaying protection is only applicable to dry slope, and rainfall is big, and Drought-wet change area frequently then should not use, and construction has certain difficulty, and expense is higher；And for spray soil solidification stabilizer grass planting method, be not cannot environment protection standard, it is simply that cost is too high is difficult to popularization and application.
Summary of the invention
Technical problem: present invention aim at merging grass planting, reinforcement, the multiple antiscour technological means of firming agent, it is proposed that a kind of meet low-carbon green environmental protection, construct convenient, cheap, take into account and increase basalt fibre steady, antiscour, greening integrated powdery soil slope and combine antiscour guard technology and construction method thereof with polyvinyl alcohol.
Technical scheme: the basalt fibre of powdery soil slope of the present invention is combined antiscour protection construction method and included design and construction two parts with polyvinyl alcohol, specifically comprises the following steps that
The first step: collect more than the 10 years rainfall observational datas in weather station in engineering area, calculate Designed recurrence period and the average rainfall intensity in rainfall duration according to 9.1.6 bar in " highway drainage design specification JTG/TD33-2012 "；If lacking rainfall observational data, according to 9.1.7 bar in " highway drainage design specification JTG/TD33-2012 ", rainfall intensity can be calculated；
Second step: according to 2.0.3 in " development construction item water and soil conservation prevents and treats standard GB/T50434-2007 " provision, in conjunction with intending carrying out the gradient of safeguard procedures side slope, determining that corresponding plan carries out the engineering slope Grading index of soilerosion intensity of safeguard procedures and allowing average soil erosion modulus and allowing average Soil loss thickness of correspondence according to " classification of soil erosion grade scale SL190-96 " 4.1.2, These parameters is the controlling indicator of antiscour guard technology requirement；
3rd step: the basalt fibre of powdery soil slope is combined antiscour guard technology and construction method thereof and adopted the domatic antiscour overcoat of three layers stratification and injection or the construction that paves with polyvinyl alcohol, including top layer overcoat: common sow grass seeds by duster or alien earth sparging grass planting layer；Middle level overcoat: silt, short basalt fiber, modified polyvinylalcohol containing plant nutrition liquid mixed layer；Ground shield layer: silt, basalt long fiber mixed layer；Plan according to second step carries out the controlling indicator allowing soil erosion intensity of safeguard procedures side slope, tentatively draft 5 groups of protection effect degree different by fiber additive ratio, modified polyvinylalcohol additive ratio, and the protection Design scheme of each overcoat thickness composition, requirement according to " development construction item conservation technology specification GB50433-2008 " 5.7.6, in conjunction with the obtained rainfall intensity of the first step, according to " development construction item conservation technology specification GB50433-2008 " 5.9.10, 5.9.11, 5.9.12, 5.9.13 in, listed requirement carries out rainfall or artificial rainfall runoff plot test, test obtains the soil erosion modulus under above-mentioned each scheme and Soil loss thickness, and compared with allowing controlling value, obtain the protection Design scheme meeting antiscour condition, if antiscour condition cannot be met, then reformulate scheme according to result of the test to test；
4th step: the protection Design scheme for meeting antiscour condition carries out the slope stability of whole protective facing and checks, the each scheme satisfied condition is carried out corresponding silt and fiber additive ratio, the shear strength test of modified polyvinylalcohol additive ratio, to obtain respective intensities index, in conjunction with each overcoat thickness, according to " highway subgrade design specification JTGD30 2004 ", the slope stability carrying out whole protective facing is checked, check by rear according to economy finally selected final design scheme, do not pass through if checking, then according to stable calculation result, suitably increase additive ratio and overcoat thickness, re-start check, until meeting stability requirement；
5th step: based on the soil fertility index of Project Areas silt, selected according to " road landslide design specification JT2006-98 " is common sowing grass seeds by duster or alien earth sparging grass planting scheme, common layer about the 0.5cm that sow grass seeds by duster, alien earth sparging layer about 2cm；Construction part:
6th step: will ensure that powdery soil slope is stability, when should stagnate one section during construction after side slope early stage treatment measures, after date carries out the construction of antiscour overcoat again, it is ensured that before construction, the sedimentation and deformation of side slope is complete；
7th step: clear up domatic, will clear up the side slope surface of construction area, clears up and domatic should ensure that domatic camber average out to ± 10cm, forbids counter-slope occur；
8th step: unwrapping wire, in strict accordance with the requirement of design working drawing, carries out unwrapping wire by design laying depth, region, it is desirable to unwrapping wire is accurate；
9th step: ground shield layer paves, according to design mixture proportion, carries out mix prepare silt, basalt fibre composite soil at the construction field (site)；Slope surface treatment, scratches process to domatic, and sprays layer of polyethylene polyol curing agent liquid；Before basic unit's domatic injection polyvinyl alcohol liquid is not dry, carry out paving of composite soil according to design thickness, carry out three times top-down beating compactings in paving, it is ensured that the composite soil compactness of design and density；
Tenth step: middle level overcoat sprays, and according to design mixture proportion, at the construction field (site) silt, basalt fibre, polyvinyl alcohol soil is carried out mix and is prepared；Slope surface treatment, scratches process to domatic, and sprays layer of polyethylene polyol curing agent liquid；Before basic unit's domatic injection polyvinyl alcohol liquid is not dry, carry out the injection of composite soil according to design thickness, injection controls pressure and the speed of injection, it is ensured that the density of mixed soil of design and slope leveling degree；
11st step: according to design determine common sow grass seeds by duster and alien earth sparging method carry out grass planting construction, common arrangement and method for construction of sowing grass seeds by duster is as follows: 1. slope surface treatment: roadbed slope is scratched process, it is easy to fertilising, makes seed be combined with roadbed slope tightr simultaneously；2. fertilising: the fertility according to soil, applies in 48h prior to seeding；3. domatic watering: before sowing grass seeds by duster, tackles domatic watering, keeps domatic dampness, is beneficial to seed germination；4. sowing grass seeds by duster preparation: stocked the material such as seed, adhesive, seed should be tested through purity check and germination percentage, and carry out accelerating germination before gushing and prepare；5. hydraulic sprinkle: sow grass seeds by duster rapidly on domatic after seed, adhesive and modified polyvinylalcohol liquid are admixed uniformly；6. covering non-woven fabrics: tighten limit mouth, with bamboo nail, two soil buries, overlapping 10cm between non-woven fabrics；7. maintenance: then water every day to keep ground moistening as do not rained after sowing grass seeds by duster; to seedling grow to setting height time; take non-woven fabrics off; dew Seedling should be suitably tempered before taking off; forbid that fine day takes off cloth suddenly; can gradually decreasing the number of times watered after Cheng Ping, alien earth sparging arrangement and method for construction is according to " road landslide design specification JT2006-98 ", " alien earth sparging green material application standard JT2002-45 ", " alien earth sparging greening foundation engineering material standard JT2002-41 ", " spraying and seeding afforesting construction technology code JT2002-127 ".
Wherein, in the 3rd step: common sow grass seeds by duster or alien earth sparging grass planting thickness 0.5～2cm；Middle level overcoat: silt, short basalt fiber thickness 6mm～20mm；The mixing thickness 2～5cm of the modified polyvinylalcohol containing plant nutrition liquid；Ground shield layer: silt, basalt long fiber thickness 20mm～30mm mixing thickness 5～15cm.
Beneficial effect: the present invention adopts above technical scheme, possesses following advantage compared with prior art:
1., this technological incorporation multipath antiscour preventive means, top layer serve reduction runoff wash away, rhizome fixation；Middle level serves reinforcement silt structure, increases aggregate cementation, reduces and is eroded into milliosmolarity, improves domatic soil body tension and shearing strength；Distribution that basalt fibre is omnidirectional prevents from washing away loss sliding along stationary plane table soil；Bottom serves the antiscour shearing intermal force effectively connecting topsoil with deep soil, and unoriented fiber distribution simultaneously can effectively prevent from washing away loss sliding along stationary plane table soil.
2., basalt fibre refines from basalt stone material, modified polyvinylalcohol is the high-molecular organic material recommended in National 863 plan " sand-fixing vegetation new material and low cost technology of preparing ", above-mentioned material all meets low-carbon (LC), green, environmental protection, not easily aging technology requirement, and basalt fibre and polyvinyl alcohol are all industrial materials, cheap, it is easy to large-scale application is promoted；
3., the three-layer protection body of this technology all adopt the form of construction work paving and spraying serosity, construction cost is low and convenient.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and case study on implementation, the invention will be further described.
The basalt fibre of Fig. 1 powdery soil slope combines antiscour guard technology generalized section with polyvinyl alcohol.
Fig. 2 is the soil layer schematic diagram that the present invention is applied to side slope.
Figure has: road surface 1, roadbed side slope 2, roadbed 3, lawn 4, silt+short basalt fiber+containing nutritional solution modified polyvinylalcohol 5, silt+basalt long fiber 6, basic unit's silt 7.
Detailed description of the invention
Below in conjunction with accompanying drawing 1, technical scheme is described in detail:
The basalt fibre of powdery soil slope combines antiscour guard technology and construction method thereof with polyvinyl alcohol, and its feature mainly includes design and construction two large divisions, specifically comprises the following steps that
The basalt fibre of a kind of powdery soil slope combines antiscour protection construction method with polyvinyl alcohol, it is characterised in that the method includes design and construction two parts, specifically comprises the following steps that
The first step: collect more than the 10 years rainfall observational datas in weather station in engineering area, calculate Designed recurrence period and the average rainfall intensity in rainfall duration according to 9.1.6 bar in " highway drainage design specification JTG/TD33-2012 "；If lacking rainfall observational data, according to 9.1.7 bar in " highway drainage design specification JTG/TD33-2012 ", rainfall intensity can be calculated.
Second step: according to 2.0.3 in " development construction item water and soil conservation prevents and treats standard GB/T50434-2007 " provision, in conjunction with intending carrying out the gradient of safeguard procedures side slope, determine that corresponding plan carries out the engineering slope Grading index of soilerosion intensity of safeguard procedures and allowing average soil erosion modulus and allowing average Soil loss thickness of correspondence according to " classification of soil erosion grade scale SL190-96 " 4.1.2.These parameters is the controlling indicator of antiscour guard technology requirement.
3rd step: the basalt fibre of powdery soil slope is combined antiscour guard technology and construction method thereof and adopted the domatic antiscour overcoat of three layers stratification and injection or the construction that paves with polyvinyl alcohol, including top layer overcoat: common sow grass seeds by duster or alien earth sparging grass planting layer (0.5～2cm)；Middle level overcoat: silt, short basalt fiber (6mm～20mm), modified polyvinylalcohol containing plant nutrition liquid mixed layer (2～5cm)；Ground shield layer: silt, basalt long fiber (20mm～30mm) mixed layer (5～15cm).Plan according to second step carries out the controlling indicator allowing soil erosion intensity of safeguard procedures side slope, tentatively draft 5 groups of protection effect degree different by fiber additive ratio, modified polyvinylalcohol additive ratio, and the protection Design scheme of each overcoat thickness composition, requirement according to " development construction item conservation technology specification GB50433-2008 " 5.7.6, in conjunction with the obtained rainfall intensity of the first step, according to " development construction item conservation technology specification GB50433-2008 " 5.9.10, 5.9.11, 5.9.12, 5.9.13 in, listed requirement carries out rainfall or artificial rainfall runoff plot test, test obtains the soil erosion modulus under above-mentioned each scheme and Soil loss thickness.And compared with allowing controlling value, it is thus achieved that meet the protection Design scheme of antiscour condition.If antiscour condition cannot be met, then reformulate scheme according to result of the test and test.
4th step: the protection Design scheme for meeting antiscour condition carries out the slope stability of whole protective facing and checks.The each scheme satisfied condition is carried out the shear strength test of corresponding silt and fiber additive ratio, modified polyvinylalcohol additive ratio, to obtain respective intensities index.In conjunction with each overcoat thickness, according to " highway subgrade design specification JTGD30 2004 ", the slope stability carrying out whole protective facing is checked.Check by rear according to economy finally selected final design scheme.Do not pass through if checking, then according to stable calculation result, suitably increasing additive ratio and overcoat thickness, re-starting check, until meeting stability requirement.
5th step: based on the soil fertility index of Project Areas silt, selected according to " road landslide design specification JT2006-98 " is common sowing grass seeds by duster or alien earth sparging grass planting scheme, common layer about the 0.5cm that sow grass seeds by duster, alien earth sparging layer about 2cm；Construction part:
6th step: will ensure that powdery soil slope is stability, when should stagnate one section during construction after side slope early stage treatment measures, after date carries out the construction of antiscour overcoat again, it is ensured that before construction, the sedimentation and deformation of side slope is complete；
7th step: clear up domatic, will clear up the side slope surface of construction area, clears up and domatic should ensure that domatic camber average out to ± 10cm, forbids counter-slope occur；
8th step: unwrapping wire, in strict accordance with the requirement of design working drawing, carries out unwrapping wire by design laying depth, region, it is desirable to unwrapping wire is accurate；
9th step: ground shield layer paves, according to design mixture proportion, carries out mix prepare silt, basalt fibre composite soil at the construction field (site)；Slope surface treatment, scratches process to domatic, and sprays layer of polyethylene polyol curing agent liquid；Before basic unit's domatic injection polyvinyl alcohol liquid is not dry, carry out paving of composite soil according to design thickness, carry out three times top-down beating compactings in paving, it is ensured that the composite soil compactness of design and density；
Tenth step: middle level overcoat sprays, and according to design mixture proportion, at the construction field (site) silt, basalt fibre, polyvinyl alcohol soil is carried out mix and is prepared；Slope surface treatment, scratches process to domatic, and sprays layer of polyethylene polyol curing agent liquid；Before basic unit's domatic injection polyvinyl alcohol liquid is not dry, carry out the injection of composite soil according to design thickness, injection controls pressure and the speed of injection, it is ensured that the density of mixed soil of design and slope leveling degree；
11st step: according to design determine common sow grass seeds by duster and alien earth sparging method carry out grass planting construction, common arrangement and method for construction of sowing grass seeds by duster is as follows: 1. slope surface treatment: roadbed slope is scratched process, it is easy to fertilising, makes seed be combined with roadbed slope tightr simultaneously；2. fertilising: the fertility according to soil, applies in 48h prior to seeding；3. domatic watering: before sowing grass seeds by duster, tackles domatic watering, keeps domatic dampness, is beneficial to seed germination；4. sowing grass seeds by duster preparation: stocked the material such as seed, adhesive, seed should be tested through purity check and germination percentage, and carry out accelerating germination before gushing and prepare；5. hydraulic sprinkle: sow grass seeds by duster rapidly on domatic after seed, adhesive and modified polyvinylalcohol liquid are admixed uniformly；6. covering non-woven fabrics: tighten limit mouth, with bamboo nail, two soil buries, overlapping 10cm between non-woven fabrics；7. maintenance: then water every day to keep ground moistening as do not rained after sowing grass seeds by duster; to seedling grow to setting height time; take non-woven fabrics off; dew Seedling should be suitably tempered before taking off; forbid that fine day takes off cloth suddenly; can gradually decreasing the number of times watered after Cheng Ping, alien earth sparging arrangement and method for construction is according to " road landslide design specification JT2006-98 ", " alien earth sparging green material application standard JT2002-45 ", " alien earth sparging greening foundation engineering material standard JT2002-41 ", " spraying and seeding afforesting construction technology code JT2002-127 ".
Claims (2)
1. the basalt fibre of a powdery soil slope combines antiscour protection construction method with polyvinyl alcohol, it is characterised in that the method includes design and construction two parts, specifically comprises the following steps that
The first step: collect more than the 10 years rainfall observational datas in weather station in engineering area, calculate Designed recurrence period and the average rainfall intensity in rainfall duration according to 9.1.6 bar in " highway drainage design specification JTG/TD33-2012 "；If lacking rainfall observational data, according to 9.1.7 bar in " highway drainage design specification JTG/TD33-2012 ", calculate rainfall intensity；
Second step: according to 2.0.3 in " development construction item water and soil conservation prevents and treats standard GB/T50434-2007 " provision, in conjunction with intending carrying out the gradient of safeguard procedures side slope, determining that corresponding plan carries out the side slope soil grass in orchards index of safeguard procedures and allowing average soil erosion modulus and allowing average Soil loss thickness of correspondence according to " classification of soil erosion grade scale SL190-96 " 4.1.2, These parameters is the controlling indicator of antiscour guard technology requirement；
3rd step: the basalt fibre of powdery soil slope combines antiscour guard technology and construction method thereof with polyvinyl alcohol, adopts injection or the domatic antiscour overcoat of point tri-level construction that paves, including top layer overcoat: common sow grass seeds by duster or alien earth sparging grass planting layer；Middle level overcoat: silt, short basalt fiber, modified polyvinylalcohol containing plant nutrition liquid mixed layer；Ground shield layer: silt, basalt long fiber mixed layer；Plan according to second step carries out the side slope soil grass in orchards index of safeguard procedures and allowing average soil erosion modulus and allowing average Soil loss thickness of correspondence, tentatively draft 5 groups of protection effect degree different by fiber additive ratio, modified polyvinylalcohol mixes the protection Design scheme of when each overcoat thickness composition, requirement according to " development construction item conservation technology specification GB50433-2008 " 5.7.6, in conjunction with the obtained rainfall intensity of the first step, according to " development construction item conservation technology specification GB50433-2008 " 5.9.10, 5.9.11, 5.9.12, 5.9.13 in, listed requirement carries out natural precipitation or artificial rainfall runoff plot test, test obtain 5 groups of protection effect degree different by fiber additive ratio, modified polyvinylalcohol mixes the soil erosion modulus under the protection Design scheme of when each overcoat thickness composition and Soil loss thickness, and compared with allowing controlling value, obtain the protection Design scheme meeting antiscour condition, if antiscour condition cannot be met, then reformulate scheme according to result of the test to test；
4th step: the protection Design scheme for meeting antiscour condition carries out the slope stability of whole protective facing and checks, the each scheme satisfied condition is carried out corresponding silt and fiber additive ratio, the shear strength test of modified polyvinylalcohol additive ratio, to obtain respective intensities index, in conjunction with each overcoat thickness, according to " highway subgrade design specification JTGD30 2004 ", the slope stability carrying out whole protective facing is checked, check by rear according to economy finally selected final design scheme, do not pass through if checking, then according to stable calculation result, suitably increase additive ratio and overcoat thickness, re-start check, until meeting stability requirement；
5th step: based on the soil fertility index of Project Areas silt, selected according to " road landslide design specification JT2006-98 " is common sowing grass seeds by duster or alien earth sparging grass planting scheme, common layer about the 0.5cm that sow grass seeds by duster, alien earth sparging layer about 2cm；Construction part:
6th step: will ensure that powdery soil slope is stability, when should stagnate one section during construction after side slope early stage treatment measures, after date carries out the construction of antiscour overcoat again, it is ensured that before construction, the sedimentation and deformation of side slope is complete；
7th step: clear up domatic, will clear up the side slope surface of construction area, clears up and domatic should ensure that domatic camber average out to ± 10cm, forbids counter-slope occur；
8th step: unwrapping wire, in strict accordance with the requirement of design working drawing, carries out unwrapping wire by design laying depth, region, it is desirable to unwrapping wire is accurate；
9th step: ground shield layer paves, according to design mixture proportion, carries out mix prepare silt, basalt fibre composite soil at the construction field (site)；Slope surface treatment, scratches process to domatic, and sprays layer of polyethylene polyol curing agent liquid；Before basic unit's domatic injection polyvinyl alcohol liquid is not dry, carry out paving of composite soil according to design thickness, carry out three times top-down beating compactings in paving, it is ensured that the composite soil compactness of design and density；
Tenth step: middle level overcoat sprays, and according to design mixture proportion, at the construction field (site) silt, basalt fibre, polyvinyl alcohol soil is carried out mix and is prepared；Slope surface treatment, scratches process to domatic, and sprays layer of polyethylene polyol curing agent liquid；Before basic unit's domatic injection polyvinyl alcohol is not dry, carry out the injection of composite soil according to design thickness, injection controls pressure and the speed of injection, it is ensured that the density of mixed soil of design and slope leveling degree；
11st step: according to design determine common sow grass seeds by duster and alien earth sparging method carry out grass planting construction, common arrangement and method for construction of sowing grass seeds by duster is as follows: 1. slope surface treatment: roadbed slope is scratched process, it is easy to fertilising, makes seed be combined with roadbed slope tightr simultaneously；2. fertilising: the fertility according to soil, applies in 48h prior to seeding；3. domatic watering: before sowing grass seeds by duster, tackles domatic watering, keeps domatic dampness, is beneficial to seed germination；4. sowing grass seeds by duster preparation: stocked seed, adhesive, seed should be tested through purity check and germination percentage, and carry out accelerating germination before gushing and prepare；5. hydraulic sprinkle: sow grass seeds by duster rapidly on domatic after seed, adhesive and modified polyvinylalcohol liquid are admixed uniformly；6. covering non-woven fabrics: tighten limit mouth, fix with bamboo nail, two soil buries, overlapping 10cm between non-woven fabrics；7. maintenance: then water every day to keep ground moistening as do not rained after sowing grass seeds by duster; to seedling grow to setting height time; take non-woven fabrics off; dew Seedling should be suitably tempered before taking off; forbid that fine day takes off cloth suddenly; can gradually decreasing the number of times watered after Cheng Ping, alien earth sparging arrangement and method for construction is according to " road landslide design specification JT2006-98 ", " alien earth sparging green material application standard JT2002-45 ", " alien earth sparging greening foundation engineering material standard JT2002-41 ", " spraying and seeding afforesting construction technology code JT2002-127 ".
2. the basalt fibre of powdery soil slope according to claim 1 combines antiscour protection construction method with polyvinyl alcohol, it is characterised in that in the 3rd step: common sow grass seeds by duster or alien earth sparging grass planting thickness 0.5～2cm；Middle level overcoat: silt, short basalt fiber thickness 6mm～20mm；The mixing thickness 2～5cm of the modified polyvinylalcohol containing plant nutrition liquid；Ground shield layer: silt, basalt long fiber thickness 20mm～30mm mixing thickness 5～15cm.
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| CN105165325B (en) * | 2015-08-19 | 2018-05-11 | 北华航天工业学院 | A kind of cohesive soil with low liquid protecting slope ecology method |
| US10011965B2 (en) * | 2015-08-26 | 2018-07-03 | Western Excelsior Corp | Production and application of fire resistant erosion control mat |
| CN107371770A (en) * | 2017-09-12 | 2017-11-24 | 北京林业大学 | One kind flowing sand grassland fast reconstructing method |
| CN109024626B (en) * | 2018-08-15 | 2020-08-21 | 深圳市粤通建设工程有限公司 | River bank landslide treatment method |
| CN111213553A (en) * | 2020-02-18 | 2020-06-02 | 中煤地华盛水文地质勘察有限公司 | Extrusion type spray seeding process for organic soil aggregate |
| CN111233380A (en) * | 2020-02-24 | 2020-06-05 | 长安大学 | Loess slope surface protection material and preparation and use method thereof |
| CN112921730A (en) * | 2021-01-20 | 2021-06-08 | 南京工业大学 | Discrete reinforced modified silt and modification method based on lignin and fibers |
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| CN101144280A (en) * | 2007-11-07 | 2008-03-19 | 中铁二院工程集团有限责任公司 | Efflorescence granite slope green safeguard structure system and construction method thereof |
| CN101235291A (en) * | 2008-01-28 | 2008-08-06 | 中国科学院地质与地球物理研究所 | Modifying agent for treating swelling soil landslide |
| CN101418540A (en) * | 2008-12-11 | 2009-04-29 | 周水林 | Construction method of polyethylene grass planting land |
| CN101696574A (en) * | 2009-10-30 | 2010-04-21 | 河南国网宝泉抽水蓄能有限公司 | Ecological protection method for high steep side slope |
| CN102138428A (en) * | 2011-04-07 | 2011-08-03 | 北京林丰源生态科技有限公司 | Vegetation restoration method adopting plant fiber blanket with assist of slurry spraying |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2012162913A (en) * | 2011-02-07 | 2012-08-30 | Kusube Sangyo:Kk | Slope greening method |
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Patent Citations (5)
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|---|---|---|---|---|
| CN101144280A (en) * | 2007-11-07 | 2008-03-19 | 中铁二院工程集团有限责任公司 | Efflorescence granite slope green safeguard structure system and construction method thereof |
| CN101235291A (en) * | 2008-01-28 | 2008-08-06 | 中国科学院地质与地球物理研究所 | Modifying agent for treating swelling soil landslide |
| CN101418540A (en) * | 2008-12-11 | 2009-04-29 | 周水林 | Construction method of polyethylene grass planting land |
| CN101696574A (en) * | 2009-10-30 | 2010-04-21 | 河南国网宝泉抽水蓄能有限公司 | Ecological protection method for high steep side slope |
| CN102138428A (en) * | 2011-04-07 | 2011-08-03 | 北京林丰源生态科技有限公司 | Vegetation restoration method adopting plant fiber blanket with assist of slurry spraying |
Non-Patent Citations (1)
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| 公路膨胀土路堑边坡防护方案探讨;毛新虎;《地球科学与环境学报》;20041231;第26卷(第4期);49-53 * |
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