CN103806455A - Unsaturated sandy soil side slope low-carbon restoration and greening stabilization method - Google Patents
Unsaturated sandy soil side slope low-carbon restoration and greening stabilization method Download PDFInfo
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- CN103806455A CN103806455A CN201410074668.0A CN201410074668A CN103806455A CN 103806455 A CN103806455 A CN 103806455A CN 201410074668 A CN201410074668 A CN 201410074668A CN 103806455 A CN103806455 A CN 103806455A
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Abstract
The invention provides an unsaturated sandy soil side slope low-carbon restoration and greening stabilization method. The method is characterized in that a curing agent is adopted and prepared from anionic polyacrylamide, potassium chloride and water in proportion, and under the condition of indoor temperature, the blending mass ratio is 0.5:4:95.5 in sequence. When wind prevention and sand fixation protection is performed, the curing agent is contained in a high-pressure watering cart, the curing agent is pumped to the surface of a side slope by the adoption of the high-pressure watering cart, construction is performed from left to right and top to bottom, and the curing agent can be jetted 1-3 times in a layering mode, so that the curing agent permeates into the surface of the sandy soil side slope to form a curing agent film; when greening protection is performed on the side slop, a pump type wet spraying machine is adopted for pumping mixed soil of the curing agent, loamy soil, grass seeds and shrubs to the surface of the side slope, so that the thickness of the mixed soil on the surface of the sandy soil side slope reaches 5 cm-10 cm, non-woven cloth is adopted for covering the composite soil on the surface of the side slope, then drop irrigation is performed, and clipping is performed at regular intervals after the seeds grow up so that shrub growth can be promoted.
Description
Technical field
The present invention is a kind of method, belongs to building (ground) field of engineering technology.
Background technology
For the special rock soil body of southwest, as the sandy soil fine particles that complete severely-weathered granite gneiss etc. forms, loose without adhesion stress between particle, meet water softening expansion and be highly susceptible to washing away loss; Expansive soil, the normal disaster problem such as water-swellable, dehydration contraction that occur in laterite area.At present, for the aspect such as diaster prevention and control and rock mass bare side sloping ecological recovery of sandy soil loss problem, dilative soil, also there is no effective and practical counter-measure, the slope of highway of such special soils is first adopted conventionally to the engineering protection measures such as the protection of anchor pole (rope) sash beam or arch slope, carry out again the greening measures such as plant biological bag or alien earth sparging, to guarantee stability and the aesthetic property of such slope of highway.But, process to greening from engineering protection, exist complex procedures, long in time limit, involve great expense and the problem such as protection against erosion poor effect.Therefore, be badly in need of a kind of novel protecting slope ecology curing compound of exploitation, afforested by rain drop erosion erosion and slope ecological for sandy soil side slope is anti-, recover vegetable layer thereby effectively solve, avoid a series of ecological environment problems such as deterioration and biological chain destruction of soil erosion, landslide, mud-rock flow, Partial little climate, keep having significant role for solidifying with vegetation of side slope.The research and development of ecological solid slope recovery technique, to beautifying road environment, are preserved the ecological environment, and prevent erosion, and guarantee driving safety is all significant.
Summary of the invention
The object of the invention is to provide a kind of nonsaturated sandy soil side slope low-carbon (LC) and repairs and greening slope method, solves the soil erosion problem that sandy soil side slope causes because of rain drop erosion.
Technical solution of the present invention, it is characterized in that adopting a kind of curing compound, this curing compound is configured and forms in proportion by PAMA+potassium chloride+water, under room temperature condition, mix and join mass ratio and be followed successively by 0.5: 4: 95.5, anion polyacrylamide molecular weight requires to be not more than 6mg/mol, ion degree is not more than 20%, and selects pulverulence, potassium chloride is selected pulverulence, water is drinking water, layoutprocedure is first by soluble in water the potassium chloride weighing in proportion, stir, after all dissolving, the anion polyacrylamide weighing is in proportion put into potassium chloride solution, stir to whole dissolvings and be configured to curing compound, check winds and fix drifting sand for sandy soil side slope, adopt high pressure sprinkling truck that curing compound is directly sprayed onto to side slope surface, according to from left to right, order is from top to bottom constructed, curing compound can divide 1-3 secondary clearing to spray, after making curing compound infiltrate sandy soil side slope surface, form one deck curing compound film, after moisture evaporation, can play the effect of checking winds and fixing drifting sand.For sandy soil side slope low-carbon (LC) restorative procedure, after curing compound is mixed with loam, adopt pump formula wet-spraying machine that mixed soil is sprayed onto to side slope surface.This curing compound and loam mix ratio are that the soil moisture content after mix is controlled between soil body optimum moisture content and soil body plastic limit moisture content, then mix grass-seed and shrub and carry out mix, airing is to the moisture content state that can carry out wet shot job requirements, and keep soil body caking size dimension to meet selected wet-spraying machine job requirements, finally utilize pump formula wet-spraying machine to carry out wet shot processing, grass-seed adopts rye grass+akeake+Chinese pennisetum to mix at 1: 1: 1 in mass ratio, and consumption is that every cubic metre of soil body mixes respectively 40～60 grams of grass-seeds; Shrub adopts spends more the mixing in 1: 1: 1 in mass ratio of lily magnolia+new white popinac+torch fruit, and consumption is that every cubic metre of soil body mixes respectively 40～60 grams of shrubs.
Adopt this curing compound to carry out the means of defence that sandy soil side slope checks winds and fixes drifting sand as follows:
(1) excavation slope, unwrapping wire, brush slope, arranges domaticly, and slope top is provided with gutter with toe place, and classification side slope is provided with stage for heaping debris and gutter;
(2) complete after engineering protection in side slope, adopt the curing compound protection of checking winds and fixing drifting sand;
(3) PAMA, potassium chloride, water are configured to curing compound in mass ratio at 0.5: 4: 95.5;
(4) curing compound is packed into high pressure sprinkling truck, adopt high pressure sprinkling truck that catalyst pump is delivered to side slope surface, according to from left to right, order is from top to bottom constructed, curing compound can divide 1-3 secondary clearing to spray, after making curing compound infiltrate sandy soil side slope surface, form one deck curing compound film, after moisture evaporation, can play the effect of checking winds and fixing drifting sand.
Adopt this curing compound to carry out sandy soil side slope low-carbon (LC) reparation greening means of defence as follows:
(1) excavation slope, unwrapping wire, brush slope, arranges domaticly, and slope top is provided with gutter with toe place, and classification side slope is provided with stage for heaping debris and gutter;
(2) complete after engineering protection in side slope, adopt curing compound to carry out ecological afforestation protection;
(3) PAMA, potassium chloride, water are configured to curing compound in mass ratio at 0.5: 4: 95.5;
(4) by curing compound and loam mix, curing compound and loam mix ratio are to make loam moisture control after mix between soil body optimum moisture content and soil body plastic limit moisture content, then mix grass-seed and shrub and carry out mix, airing extremely can be carried out the moisture content state of wet shot operation, and keeps loam caking size dimension to meet selected wet-spraying machine job requirements;
(5) three kinds of grass-seed rye grasses, akeake, Chinese pennisetums mix with loam, mixing 40～60 grams of grass-seeds according to every cubic metre of volume soil is configured, three kinds of shrubs are spent more lily magnolia, new white popinac, torch fruit and mix with loam, mix 40～60 grams of shrubs be configured according to every cubic metre of volume soil;
(6) adopt pump formula wet-spraying machine that the composite soil of curing compound, loam, grass-seed, shrub is pumped to side slope surface, according to from left to right, order is from top to bottom constructed, and composite soil can divide 1-3 secondary clearing to spray, and makes side slope surface composite soil thickness reach 10-15cm;
(7) adopt nonwoven to hide side slope surface composite soil, and carry out drip irrigation processing, after grass grows, regularly prune, to promote the growth of shrub.
Advantage of the present invention:
Form skim structure on sandy soil side slope surface, reduced the anti-rain erosion ability of sandy soil, check winds and fix drifting sand, prevent erosion, reduce environment pollution, be beneficial to engineering safety.
The scope of application of the present invention:
In the special soils side slopes such as clast that the completely decomposed rock that can be used for running in civil engineering forms, sandy soil, sand, can prevent that soil particle is lost by side slope top layer water and soil and careless perfusion that rain drop erosion causes, promotion decomposed rock slope ecological is afforested.
The specific embodiment:
Embodiment (1): for the sandy soil side slope method of checking winds and fixing drifting sand:
1. certain is high 8 meters, ratio of slope is that 1: 1.5, length are the sandy soil side slope of 30 meters, the protection of checking winds and fixing drifting sand;
2. by 2.4 tons of potassium chloride and 60m
3drinking water mixes puts into stirring pool, then puts into 300kg PAMA, and stirs respectively, is configured to curing compound, and curing compound is evacuated to sprinkling truck;
3. adopt high pressure sprinkling truck that catalyst pump is delivered to side slope surface, according to from left to right, order is from top to bottom constructed, curing compound can divide 1-3 secondary clearing to spray, after making curing compound infiltrate sandy soil side slope surface, form one deck curing compound film, after moisture evaporation, can play the effect of checking winds and fixing drifting sand.
Embodiment (2): for slope of highway ecological afforestation means of defence:
4. certain is high 8 meters, ratio of slope is that 1: 1.5, length are the sandy soil side slope of 30 meters, carries out top layer ecological afforestation protection;
5. prepare 300m
3dry ground, 60m
3drinking water, 300kg PAMA, 2.4 tons of potassium chloride, 15kg rye grass, 15kg akeake, 15kg Chinese pennisetum, 15kg spend more lily magnolia, the new white popinac of 15kg, 15kg torch fruit;
6. build concrete-agitating pond, and carry out waterproofing work;
7. by 2.4 tons of potassium chloride and 60m
3drinking water mixes puts into stirring pool, then puts into 300kg PAMA, and stirs respectively, is configured to curing compound, and curing compound is evacuated to sprinkling truck;
8. by curing compound and 300m
3dry ground mixes, mix 15kg rye grass, 15kg akeake, 15kg Chinese pennisetum, 15kg and spend more lily magnolia, the new white popinac of 15kg, 15kg torch fruit, utilize excavator to stir, be configured to composite soil, airing to wet-spraying machine can the required moisture content state of normal operation, and packs pump formula wet-spraying machine into;
9. adopt pump formula wet-spraying machine that composite soil is pumped to side slope surface, according to from left to right, order is from top to bottom constructed, and composite soil can divide 1-3 secondary clearing to spray, and makes side slope surface composite soil thickness reach 10cm;
10. adopt nonwoven to hide side slope surface composite soil, and carry out drip irrigation processing, after grass grows, regularly prune, to promote the growth of shrub.
Claims (1)
1. a nonsaturated sandy soil side slope low-carbon (LC) is repaired and greening slope method, it is characterized in that adopting a kind of ecological curing compound, this curing compound is configured and forms in proportion by PAMA+potassium chloride+water, under room temperature condition, mix and join mass ratio and be followed successively by 0.5: 4: 95.5, anion polyacrylamide molecular weight requires to be not more than 6mg/mol, ion degree is not more than 20%, and selects pulverulence, potassium chloride is selected pulverulence, water is drinking water, layoutprocedure is first by soluble in water the potassium chloride weighing in proportion, stir, after all dissolving, the anion polyacrylamide weighing is in proportion put into potassium chloride solution, stir to whole dissolvings and be configured to curing compound, check winds and fix drifting sand for sandy soil side slope, adopt high pressure sprinkling truck that curing compound is directly sprayed onto to side slope surface, according to from left to right, order is from top to bottom constructed, curing compound can divide 1-3 secondary clearing to spray, after making curing compound infiltrate sandy soil side slope surface, form one deck curing compound film, after moisture evaporation, can check winds and fix drifting sand, repair for sandy soil side slope low-carbon (LC), curing compound is mixed with loam, this curing compound and loam mix ratio are that the soil moisture content after mix is controlled between soil body optimum moisture content and soil body plastic limit moisture content, then mix grass-seed and shrub and carry out mix, airing is to the moisture content state that can carry out wet shot job requirements, and keep soil body caking size dimension to meet selected wet-spraying machine job requirements, finally utilize pump formula wet-spraying machine that mixed soil is sprayed onto to side slope surface, grass-seed adopts rye grass+akeake+Chinese pennisetum to mix at 1: 1: 1 in mass ratio, shrub adopts spends more the mixing in 1: 1: 1 in mass ratio of lily magnolia+new white popinac+torch fruit,
Adopt this curing compound to carry out the solid slope method that sandy soil side slope checks winds and fixes drifting sand as follows:
(1) excavation slope, unwrapping wire, brush slope, arranges domaticly, and slope top is provided with gutter with toe place, and classification side slope is provided with stage for heaping debris and gutter;
(2) complete after engineering protection in side slope, adopt the curing compound protection of checking winds and fixing drifting sand;
(3) PAMA, potassium chloride, water are configured to curing compound in mass ratio at 0.5: 4: 95.5;
(4) curing compound is packed into high pressure sprinkling truck, adopt high pressure sprinkling truck that catalyst pump is delivered to side slope surface, according to from left to right, order is from top to bottom constructed, curing compound can divide 1-3 secondary clearing to spray, after making curing compound infiltrate sandy soil side slope surface, form one deck curing compound film, after moisture evaporation, can play the effect of checking winds and fixing drifting sand;
Adopt this curing compound to carry out sandy soil side slope low-carbon (LC) reparation greening means of defence as follows:
(1) excavation slope, unwrapping wire, brush slope, arranges domaticly, and slope top is provided with gutter with toe place, and classification side slope is provided with stage for heaping debris and gutter;
(2) complete after engineering protection in side slope, adopt curing compound to carry out ecological afforestation protection;
(3) PAMA, potassium chloride, water are configured to curing compound in mass ratio at 0.5: 4: 95.5;
(4) by curing compound and loam mix, curing compound and loam mix ratio are to make loam moisture control after mix between soil body optimum moisture content and soil body plastic limit moisture content, then mix grass-seed and shrub and carry out mix, airing extremely can be carried out the moisture content state of wet shot operation, and keeps loam caking size dimension to meet selected wet-spraying machine job requirements;
(5) three kinds of grass-seed rye grasses, akeake, Chinese pennisetums mix with loam, mixing 40～60 grams of grass-seeds according to every cubic metre of volume soil is configured, three kinds of shrubs are spent more lily magnolia, new white popinac, torch fruit and mix with loam, mix 40～60 grams of shrubs be configured according to every cubic metre of volume soil;
(6) adopt pump formula wet-spraying machine that the composite soil of curing compound, loam, grass-seed, shrub is pumped to side slope surface, according to from left to right, order is from top to bottom constructed, and composite soil can divide 1-3 secondary clearing to spray, and makes side slope surface composite soil thickness reach 10-15cm;
(7) adopt nonwoven to hide side slope surface composite soil, and carry out drip irrigation processing, after grass grows, regularly prune, to promote the growth of shrub.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410074668.0A CN103806455B (en) | 2014-03-03 | 2014-03-03 | A kind of nonsaturated sandy soil side slope low-carbon (LC) is repaired and greening slope method |
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| CN201410074668.0A CN103806455B (en) | 2014-03-03 | 2014-03-03 | A kind of nonsaturated sandy soil side slope low-carbon (LC) is repaired and greening slope method |
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| CN103806455A true CN103806455A (en) | 2014-05-21 |
| CN103806455B CN103806455B (en) | 2016-04-06 |
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Cited By (6)
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| CN103993608A (en) * | 2014-05-31 | 2014-08-20 | 贵州科农生态环保科技有限责任公司 | Protection method for slopes in karst regions and structure thereof |
| CN105940809A (en) * | 2016-05-19 | 2016-09-21 | 成都理工大学 | Sandy soil greening construction method |
| CN107893413A (en) * | 2017-11-08 | 2018-04-10 | 兰州有色冶金设计研究院有限公司 | The method that solidification method administers sand-dust source |
| CN111424690A (en) * | 2020-04-20 | 2020-07-17 | 中国科学院地质与地球物理研究所 | Construction method for applying phosphogypsum to loess shallow landslide protection |
| CN111424688A (en) * | 2020-04-20 | 2020-07-17 | 中国科学院地质与地球物理研究所 | Protection method for preventing and controlling shallow landslide of soil slope by using phosphogypsum |
| CN111439982A (en) * | 2020-04-20 | 2020-07-24 | 中国科学院地质与地球物理研究所 | Improvement method for applying phosphogypsum to construction of expansive soil dike |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103993608A (en) * | 2014-05-31 | 2014-08-20 | 贵州科农生态环保科技有限责任公司 | Protection method for slopes in karst regions and structure thereof |
| CN105940809A (en) * | 2016-05-19 | 2016-09-21 | 成都理工大学 | Sandy soil greening construction method |
| CN107893413A (en) * | 2017-11-08 | 2018-04-10 | 兰州有色冶金设计研究院有限公司 | The method that solidification method administers sand-dust source |
| CN107893413B (en) * | 2017-11-08 | 2021-06-22 | 兰州有色冶金设计研究院有限公司 | Method for treating dust source by solidification method |
| CN111424690A (en) * | 2020-04-20 | 2020-07-17 | 中国科学院地质与地球物理研究所 | Construction method for applying phosphogypsum to loess shallow landslide protection |
| CN111424688A (en) * | 2020-04-20 | 2020-07-17 | 中国科学院地质与地球物理研究所 | Protection method for preventing and controlling shallow landslide of soil slope by using phosphogypsum |
| CN111439982A (en) * | 2020-04-20 | 2020-07-24 | 中国科学院地质与地球物理研究所 | Improvement method for applying phosphogypsum to construction of expansive soil dike |
| CN111439982B (en) * | 2020-04-20 | 2021-06-08 | 中国科学院地质与地球物理研究所 | Improvement method for applying phosphogypsum to construction of expansive soil dike |
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