CN106612690A - Improvement method for enhancing infiltration and detention of soil - Google Patents
Improvement method for enhancing infiltration and detention of soil Download PDFInfo
- Publication number
- CN106612690A CN106612690A CN201611019500.5A CN201611019500A CN106612690A CN 106612690 A CN106612690 A CN 106612690A CN 201611019500 A CN201611019500 A CN 201611019500A CN 106612690 A CN106612690 A CN 106612690A
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- Prior art keywords
- soil
- modifying agent
- sawdust
- improvement
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Cultivation Of Plants (AREA)
Abstract
The invention relates to an improvement method for enhancing infiltration and detention of soil. An ameliorant is one of sawdust and straw or a combination of the sawdust and the straw, the bulk density of the sawdust is 150-220 kg/m<3>, and the bulk density of the straw is 100-160 kg/m<3>. The doping proportion of the ameliorant is 0-30% according to different soil types. The improvement method includes the steps of uniform mixing of the ameliorant and to-be-improved soil, and backfill of the earth surfaces of green land, a garden and the like. The method has the advantages that the porosity of soil is increased, soil permeability is improved, and soil hardening is avoided or reduced; rainwater infiltration of the earth surfaces of the green land, the garden and the like, and underground water is supplemented in time; the straw, the sawdust and other waste are reused, so harm of field combustion smog is reduced, and the resource utilization rate is increased.
Description
Technical field
The present invention relates to the modification method of storage is oozed in a kind of soil reinforcing, it is that storage is oozed in a kind of soil reinforcing in particular
Modifying agent and modification method.
Background technology
At present, more than 50%, Rapid-Urbanization causes large-scale urban sprawl to China's urbanization rate, causes the hydrology to provide
Source is excessively developed, and hard underlying surface ratio increases, and only the rainwater of 20-30% can penetrate on the spot, and major part all flows away in vain, cuts
Break city water cycle path, and exacerbated Urban Storm Flood risk.Research shows that this situation can allow ecological environment constantly to deteriorate,
City is not more and more livable.
National to propose that " sponge city " is built based on this, i.e., city can adapt to environmental change and answering as sponge
There is good " elasticity " to aspects such as natural calamities, water suction, retaining, infiltration, water purification when raining, by the water for storing when needing
" release " is simultaneously used, and lifts urban ecological system function and reduces the generation of Urban Flood Waterlogging.
In the process of construction in sponge city, can be used for reinforced soil ooze accumulation of energy power modifying agent species it is few.Grind at present
Studying carefully more modifying agent mainly includes the single modifying agents such as zeolite, flyash, sludge, green manure polyacrylamide and is partly combined to change
Good dose.But there is former expensive, the method complexity of compounding application, improved effect in application in these soil conditioners
Comprehensively and the problems such as cause heavy metal pollution.And sawdust, stalk light weight are loose, porosity is big, can improve soil permeability, keeps away
Exempt from or mitigate the hardened of soil；Permeability improved effect is obvious so that the rainwater of the earth's surface such as greenery patches, garden and ooze at present, supplements
Underground water；Additionally, the waste such as stalk, sawdust is recycled again, alleviate and burn the harm of thick fog in field, improve resource profit
With rate.Therefore, stalk and sawdust are the ideal material that storage is oozed in soil reinforcing.
The content of the invention
The purpose of the present invention is aiming at above-mentioned problems of the prior art, there is provided changing for storage is oozed in a kind of soil reinforcing
Good recipe method.
The object of the present invention is achieved like this, and the modification method of storage is oozed in a kind of soil reinforcing, it is characterized in that, including following
Step：
Step（1）, prepare modifying agent, the modifying agent is made up of sawdust and/or stalk, and sawdust unit weight is 150-220kg/m3,
Stalk unit weight is 100-160kg/m3；
Step（2）, weigh step（1）Obtained modifying agent, volume of the modifying agent in soil is 0- with the mass ratio of soil
30%；When soil is sandy soil, volume of the modifying agent in sandy soil is 0-10% with the mass ratio of soil；When soil is earth
Matter clay, volume of the modifying agent in loamy texture clay is 20%-30% with the mass ratio of soil；
Step（3）, by step（2）The modifying agent for weighing is put in stainless drum with soil, is carried out using pony mixer
Stirring, makes both（Modifying agent, soil）Mixture homogeneity reaches more than 95%, then soil after improvement is backfilled to into greenery patches, garden
It is 10-30cm Deng, backfill thickness, and lightly compacting is carried out from small-sized rammer, after compaction soil surface applies 1-2cm original states
Soil, discharges grass seeds（If laying turf, without the need for applying undisturbed soil）, the undisturbed soil is the soil do not improved.
The present invention, the advanced science of method, by the present invention, the modification method of storage is oozed in a kind of soil reinforcing, and modifying agent is saw
End, the one of which of stalk or two kinds of combinations, sawdust unit weight is 150-220kg/m3, stalk unit weight is 100-160kg/m3.Improvement
According to the difference of soil types, range of choice is 0-30% to agent volume（Account for the ratio of gross mass）, modifying agent is fitted in sandy soil
Preferably volume is 0-10%, and modifying agent moderate dosage is 20%-30% in loamy texture clay, finally modifying agent is admixed with soil and is mixed
Uniformly, greenery patches, garden etc. are backfilled.
The beneficial effects of the present invention is：（1）Stalk, sawdust quality are loose, and porosity is big, can be effectively improved soil penetrating
Property, the porosity and infiltration rate of soil are improved, to mitigate and ooze slow-footed problem, effective recharge of groundwater under urban rainwater；（2）Straw
Contain the compositions such as substantial amounts of cellulose, lignin, amino acid and mineral element in the waste materials such as stalk, sawdust, can provide for soil
More nutrients, and these compositions can be decomposed into the important composition composition of soil under microbial action, it is to avoid cause secondary
Pollution（3）The refuse reclamations such as stalk, sawdust and wide material sources, alleviate and burn the harm of thick fog in field, improve resource profit
With rate.
To sum up, natural soil conditioner-sawdust, stalk（Optionally either or both combination）, soil hole can be effectively increased
Gap rate, improves soil permeability, it is to avoid or mitigate the hardened of soil；The rainwater infiltration of the earth's surfaces such as reinforcing greenery patches, garden, mends in time
The refuse reclamations such as underground water and straw sawdust are filled, is alleviated and is burned the harm of thick fog in field, improve resource utilization, had
Good ecology, economical, societal benefits.
Description of the drawings
Fig. 1 is the sawdust improved test result of 100% sand+0%；
Fig. 2 is the sawdust improved test result of 95% sand+5%；
Fig. 3 is the sawdust improved test result of 90% sand+10%；
Fig. 4 is the sawdust improved test result of 100% loamy texture clay+0%；
Fig. 5 is the sawdust improved test result of 80% loamy texture clay+20%；
Fig. 6 is the sawdust improved test result of 75% loamy texture clay+25%；
Fig. 7 is the sawdust improved test result of 70% loamy texture clay+30%.
Specific embodiment
With reference to specific embodiment, the present invention is expanded on further.
The modification method of storage is oozed in a kind of soil reinforcing, comprises the following steps：
Step（1）, prepare modifying agent, the modifying agent is made up of sawdust and/or stalk, and sawdust unit weight is 150-220kg/m3,
Stalk unit weight is 100-160kg/m3；
Step（2）, weigh step（1）Obtained modifying agent, volume of the modifying agent in soil is 0- with the mass ratio of soil
30%；When soil is sandy soil, volume of the modifying agent in sandy soil is 0-10% with the mass ratio of soil；When soil is earth
Matter clay, volume of the modifying agent in loamy texture clay is 20%-30% with the mass ratio of soil；
Step（3）, by step（2）The modifying agent for weighing is put in stainless drum with soil, is carried out using pony mixer
Stirring, makes modifying agent reach more than 95% with soil mixture homogeneity, then soil after improvement is backfilled to into greenery patches, garden, backfills
Thickness is 10-30cm, and carries out lightly compacting from small-sized rammer；If desired turf is laid, then directly in lightly compacting
Laying turf is carried out on soil after improvement；If desired grass seeds is discharged, the soil surface after compacting improvement applies 1-2cm original states
Soil, then grass seeds is discharged, the undisturbed soil is the soil do not improved.
It is further refined as：
The modifying agent of storage is oozed in a kind of soil reinforcing, and from sawdust as modifying agent, modification method comprises the steps this example：
Appropriate sand, loamy texture clay are taken, based on sand infiltration coefficient itself i.e. up to 10-2~10-4, therefore in sand improved test
The release amount of sawdust is added respectively by 5% and 10% of gross weight；The infiltration coefficient of loamy texture clay is generally 10-5~10-6Cm/s, respectively
Sawdust is added by the 20% of gross weight, 25% and 30%.
The soil that different type blends sawdust is mixed thoroughly, in being added to soil sample post, is filled to hollow pipe column 5.5cm, people
Work is compacted 3 times, and water is rammed 2 times.When carrying out permeability test, design head is 35cm, opens bottom valve, treats that exit starts water outlet
When electronic balance is reset and is started timing, record balance reading every 5,10,20,30,45,65,90,120min, examination
During testing, the head above soil layer will keep 34.5cm, keep stable barometric gradient.
Result of the test is as follows：
（1）Impact of the different modifying agent volumes to sand infiltration rate：
Fig. 1 is the sawdust improved test result of 100% sand+0%；
Fig. 2 is the sawdust improved test result of 95% sand+5%；
Fig. 3 is the sawdust improved test result of 90% sand+10%.
（2）Impact of the different modifying agent volumes to loamy texture clay infiltration rate：
Fig. 4 is the sawdust improved test result of 100% loamy texture clay+0%；
Fig. 5 is the sawdust improved test result of 80% loamy texture clay+20%；
Fig. 6 is the sawdust improved test result of 75% loamy texture clay+25%；
Fig. 7 is the sawdust improved test result of 70% loamy texture clay+30%.
The embodiment of the present invention is by the way that using sawdust, used as modifying agent improved soil, result of the test shows：Different Soil is oozed
Thoroughly difference of coefficients is very big, and sand, the stable infiltration rate of loamy texture clay are respectively 4.28 × 10-1mm/min、1.93×10-3mm/
min.With the increase of soil conditioner dosage, the permeance property of soil is also stepped up.The sand for filling 5% sawdust is stablized
Infiltration rate is 1.5 times of roughing sand soil.Be directed to loamy texture clay, due to itself infiltration coefficient it is less, only 0.00193mm/
Min, after 20% sawdust of admixture, i.e. up to 0.411mm/min, permeance property about increases 250 times to infiltration coefficient；Fill 30% sawdust
Afterwards, up to 0.666mm/min, permeance property about increases 350 times to infiltration coefficient.
Claims (1)
1. the modification method of storage is oozed in a kind of soil reinforcing, it is characterized in that, comprises the following steps：
Step（1）, prepare modifying agent, the modifying agent is made up of sawdust and/or stalk, and sawdust unit weight is 150-220kg/m3, straw
Stalk unit weight is 100-160kg/m3；
Step（2）, weigh step（1）Obtained modifying agent, volume of the modifying agent in soil is 0- with the mass ratio of soil
30%；When soil is sandy soil, volume of the modifying agent in sandy soil is 0-10% with the mass ratio of soil；When soil is earth
Matter clay, volume of the modifying agent in loamy texture clay is 20%-30% with the mass ratio of soil；
Step（3）, by step（2）The modifying agent for weighing is put in stainless drum with soil, is carried out using pony mixer
Stirring, makes modifying agent reach more than 95% with soil mixture homogeneity, then soil after improvement is backfilled to into greenery patches, garden, backfills
Thickness is 10-30cm, and carries out lightly compacting from small-sized rammer；If desired turf is laid, then directly in lightly compacting
Laying turf is carried out on soil after improvement；If desired grass seeds is discharged, the soil surface after compacting improvement applies 1-2cm original states
Soil, then grass seeds is discharged, the undisturbed soil is not through the soil of improvement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611019500.5A CN106612690A (en) | 2016-11-21 | 2016-11-21 | Improvement method for enhancing infiltration and detention of soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611019500.5A CN106612690A (en) | 2016-11-21 | 2016-11-21 | Improvement method for enhancing infiltration and detention of soil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106612690A true CN106612690A (en) | 2017-05-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201611019500.5A Pending CN106612690A (en) | 2016-11-21 | 2016-11-21 | Improvement method for enhancing infiltration and detention of soil |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109362267A (en) * | 2018-10-22 | 2019-02-22 | 扬州大学 | A method of improving soil aggregate stability |
| CN113214838A (en) * | 2021-04-14 | 2021-08-06 | 扬州大学 | Soil permeability and purification capacity improving material and evaluation method of improving material |
Citations (6)
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|---|---|---|---|---|
| SU1553023A1 (en) * | 1988-01-12 | 1990-03-30 | Азербайджанский Научно-Исследовательский Институт Овощеводства | Method of growing mangold |
| CN1981568A (en) * | 2005-12-16 | 2007-06-20 | 上海市金山区园林管理署 | Halogenic soil planting technique on seashore |
| CN102177774A (en) * | 2010-12-06 | 2011-09-14 | 西南大学 | Method for enhancing evaporation resisting and water preserving ability of sandy soil |
| CN103718691A (en) * | 2013-12-17 | 2014-04-16 | 吉林农业大学 | Soil improvement method |
| CN105191537A (en) * | 2015-10-21 | 2015-12-30 | 漯河市农业科学院 | Straw mulching method |
| CN105819758A (en) * | 2016-03-10 | 2016-08-03 | 盐城工学院 | Ecologic solidified fluid mud and production method thereof |
-
2016
- 2016-11-21 CN CN201611019500.5A patent/CN106612690A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1553023A1 (en) * | 1988-01-12 | 1990-03-30 | Азербайджанский Научно-Исследовательский Институт Овощеводства | Method of growing mangold |
| CN1981568A (en) * | 2005-12-16 | 2007-06-20 | 上海市金山区园林管理署 | Halogenic soil planting technique on seashore |
| CN102177774A (en) * | 2010-12-06 | 2011-09-14 | 西南大学 | Method for enhancing evaporation resisting and water preserving ability of sandy soil |
| CN103718691A (en) * | 2013-12-17 | 2014-04-16 | 吉林农业大学 | Soil improvement method |
| CN105191537A (en) * | 2015-10-21 | 2015-12-30 | 漯河市农业科学院 | Straw mulching method |
| CN105819758A (en) * | 2016-03-10 | 2016-08-03 | 盐城工学院 | Ecologic solidified fluid mud and production method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109362267A (en) * | 2018-10-22 | 2019-02-22 | 扬州大学 | A method of improving soil aggregate stability |
| CN113214838A (en) * | 2021-04-14 | 2021-08-06 | 扬州大学 | Soil permeability and purification capacity improving material and evaluation method of improving material |
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Application publication date: 20170510 |