CN110199605A - A kind of construction method of the ridge leakage preventing structure of paddy field water conservation - Google Patents
A kind of construction method of the ridge leakage preventing structure of paddy field water conservation Download PDFInfo
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- CN110199605A CN110199605A CN201910589562.7A CN201910589562A CN110199605A CN 110199605 A CN110199605 A CN 110199605A CN 201910589562 A CN201910589562 A CN 201910589562A CN 110199605 A CN110199605 A CN 110199605A
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- antiseepage film
- paddy field
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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
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- Life Sciences & Earth Sciences (AREA)
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Abstract
The present invention provides a kind of construction methods of the ridge leakage preventing structure of paddy field water conservation, belong to resource and environment protection technique field.The construction method of the ridge leakage preventing structure of this paddy field water conservation, it is characterized in that, including operation road block, fixing layer block and the antiseepage film successively designed from top to bottom, the operation road block is concrete structure, its material by screw-thread steel and coagulation local soil type at, the fixing layer block is concrete structure, and material is by screw-thread steel and coagulation local soil type at the material of the antiseepage film is high-density polyethylene plastics.The present invention can prevent the water in paddy field from blending lower infiltration by ridge side, water-saving result and reduction rice field pollutional load can reach 30% or more, it is suitble to water scarcity and the serious rice region of water environment pollution, material therefor does not have any ecological risk simultaneously, and design is simple, depreciable cost relative moderate, Maintenance free.
Description
Technical field
The invention belongs to resource and environment protection technique fields, are related to a kind of ridge leakage preventing structure, especially a kind of paddy field
The construction method of the ridge leakage preventing structure of water conservation.
Background technique
China is poorest one of the country of global per capita water resource, is only per capita 900m using freshwater resources amount3, it is
The 1/4 of world average level.Moreover, shortage of water resources and water pollution problems are increasingly with the fast development of Chinese society economy
Seriously, become the restraining factors of part basin Sustainable Socioeconomic Development.To alleviate severe water situation, " 15 " play China
Water of river and lake environmental pollution improvement is included in national science and technology special project, is included in the great work of national water conservancy for water-saving for the first time again within 2014
Journey reduces the demand to natural resources, while improving the ecological environment in waters to improve the water resource utilization efficiency in China.
China is agricultural production big country, and agricultural production water consumption accounts for about the 70% of national total water consumption, and the use of Rice Production
Water then accounts for about the 70% of entire agricultural production water consumption, that is, the paddy system water consumption in China accounts for about national total water consumption
50%.On the other hand, rice field is also important agricultural area source nitrogen and phosphorus pollution source, such as in Taihu Lake basin river network in plain areas, agriculture
Industry non-point source pollution loading enters lake amount and has accounted for 50% or more of lake pollutional load general input.Taihu Lake basin status farmland fertilizer year
Dosage average out to nitrogenous fertilizer 570-600kg/hm2, phosphate fertilizer 79.5-99kg/hm2, chemical fertilizer average utilization is only 30-35%.
Paddy system is that main force's silo in China to account for ratio of the total cultivated area less than 20% produces nearly 50%
Grain (including winter crops), paddy system stablize it is sustainable production concerning national food security.Water money based on China
Source situation, China always pay attention to the problem of water saving of agricultural production, have developed many Water-saving agricultural technologies in succession, advocate water-saving agriculture
Industry.Water-saving agriculture refers in agricultural production process, takes the water saving measures such as engineering, biology, agronomy and management, is improved with comprehensive
The mode of agriculture of natural rainfall and irrigation water using efficiency.In terms of the water-saving technology of Rice Production, including canal of improving the soil is anti-
Infitration galleries water conveyance irrigation, by field farming and cultivation management measure, the field physics water consumption during reducing paddy growth (runs leakage
Seep drop), using pipe filling, slight irrigation, sprinkling irrigation and plastic-film-covered cultivation is combined to carry out trickle irrigation etc., develops to saving water, resisting drought rice varieties again in recent years
Breeding construct based on technology of wireless sensing network and on the basis of Study On Rice different bearing stage law of needing the water
Rice field water-saving irrigation control system etc., but in general, saving water, resisting drought rice varieties and wireless sensor network are used except therein
The rice field water-saving irrigation control system of technology more effectively and has stronger applicability, has outside preferable development prospect,
Water-saving technology in his paddy system due to or because itself water saving potential it is limited and cumbersome, or because of investment and maintenance cost
The reasons such as higher, overall applicability are poor.
Due to the long-term waterflooding in rice field, the soil texture different from nonirrigated farmland is formd, typical stickiness paddy soil is by ploughing
Make layer, plough sole and chorizon composition, wherein plough sole has very strong antiseep effect, research shows that the leakage in such rice field
Speed is about 1-5mm/d, and in fact, the water efficiency of irrigation in China rice field only has 0.40-0.45, loss is big visible
One spot.It according to analysis, essentially consists in the soil horizon of ridge the reason of generating this huge drop that there is no plough soles, causes a large amount of
Rice field water by seeping under the region or side is seeped, become " funnel " in paddy field region.Therefore, how to ensure rice field high crop yield
Under the premise of stable yields, the rice field water especially greatly during reduction Rice Production is seeped by blending side under ridge region
The loss of approach improves the utilization efficiency of water resource, while the leakage flow vector by reducing rice field Nutrient water, reduces rice field
The non-point source pollution loading of system, it has also become the urgent need skill of the serious rice region of China's rice region, especially water scarcity and water environment pollution
One of art.
Summary of the invention
The purpose of the present invention is there is the above problem in view of the prior art, a kind of ridge antiseepage of paddy field water conservation is proposed
The construction method of structure, the present invention have long service life, need not conserve and ensure that paddy field moisture will not side infiltration, few lower spy seeped
Point.
Object of the invention can be realized by the following technical scheme: a kind of construction of the ridge leakage preventing structure of paddy field water conservation
Method, which is characterized in that including operation road block, fixing layer block and the antiseepage film successively designed from top to bottom, the behaviour
Making block is concrete structure, and the fixing layer block is concrete structure, and the material of the antiseepage film is poly- for high density
Vinyl plastics specifically use following steps:
A, make history, irrigation conditions, water resource and Water Pollution Problem to the quasi- paddy field soil type for implementing region, rice to carry out
Probe carries out targetedly technological design, including target life objective, works scope and design specification on this basis；
B, it is positioned in determining construction area bracing wire, removes the mud in space needed for need to installing fixing layer block and its constructing
Soil；
C, manually or mechanical ramming substrate, and in the middle in region position line is drawn to be positioned, it is manually or mechanical
Dig a narrow ditch to position line side, for installing antiseepage film, therefore its width be regarded as industry may be more narrower better, depth is then according to setting
Meter requires；
D, antiseepage film is installed vertically on to the middle of entire leakage preventing structure, below operation road block upper pad surface
10cm, the 20cm below fixing layer block underlying surface；
E, fixing layer block is installed on to the middle layer of entire leakage preventing structure, and is formed with the upper downward part of antiseepage film, Gu
Given layer block is located at paddy field field face or less, and its upper pad surface and paddy field field face maintain an equal level；
F, operation road block is installed on to the upper layer of entire leakage preventing structure, and is formed with part is prolonged in antiseepage film, operation
Road block is located at paddy field field face or more, and its underlying surface and paddy field field face maintain an equal level.
In the construction method for the ridge leakage preventing structure that above-mentioned paddy field is retained, the step d the following steps are included:
D1, according to design parameter antiseepage film is cut first, cutting forms several antiseepage film units；
D2, all antiseepage film units are placed in the narrow ditch side dug in advance, then by the 1st antiseepage film unit its length
About 95% be inserted into narrow ditch, and position line side is at, later by the 2nd antiseepage film unit and the 1st antiseepage film list
Member carries out imbricate, overlapping hot glue method or glue linking, is inserted into ditch after linking, and so on；
D3, antiseepage film is fixed with hack backfill, when backfill need to be compacted repeatedly.
In the construction method for the ridge leakage preventing structure that above-mentioned paddy field is retained, the antiseepage film with a thickness of 0.8-
1.2mm。
In the construction method for the ridge leakage preventing structure that above-mentioned paddy field is retained, the antiseepage film includes several in rectangle
The antiseepage film unit of shape, the width of the antiseepage film unit are 50-65cm, use hot glue between several antiseepage film units
Method or glue linking.
In the construction method for the ridge leakage preventing structure that above-mentioned paddy field is retained, the glue is butyl rubber.
Fixing layer block in the construction method for the ridge leakage preventing structure that above-mentioned paddy field is retained, in the step e
Material by screw-thread steel and coagulation local soil type at the specification of the screw-thread steel uses diameter for 8-14mm, and the concrete is adopted
With common commercially available label C35, antiseepage film is located at longitudinal middle of fixing layer block, and the width of fixing layer block is 20-40cm,
High (depth) degree is 20-25cm.
Operation road block in the construction method for the ridge leakage preventing structure that above-mentioned paddy field is retained, in the step f
Material by screw-thread steel and coagulation local soil type at the specification of the screw-thread steel uses diameter for 8-14mm, and the concrete is adopted
With common commercially available label C35, antiseepage film is located at longitudinal middle of operation road block, and the width of operation road block is 5-60cm,
High (depth) degree is 20-30cm.
The present invention has filled up the technological gap of application, and has the advantage that
1, the present invention can effectively prevent the rice field water for having formed plough sole rice region by blending side infiltration approach under ridge region
Loss, to improve the utilization efficiency of water resource.
2, the present invention blends side seepage flow vector under rice field Nutrient water by reducing, and is improving the same of plant recovery of nutrient
When, reduce the non-point source pollution loading of paddy system.
3, the present invention makes ridge be more convenient for walking, maintenance and while operation, and traditional soil property ridge can be greatly lowered
Become the risk that place was inhabited and multiplied to rice field crop disease pest to a certain extent.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
In figure, 1, operation road block；2, fixing layer block；3, antiseepage film.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
As shown in Figure 1, a kind of leakage preventing structure of paddy field water conservation, including the operation road block 1, solid successively designed from top to bottom
Given layer block 2 and antiseepage film 3, the operation road block 1 are concrete structure, and the fixing layer block 2 is concrete knot
The material of structure, the antiseepage film 3 is high-density polyethylene plastics, and work progress is then from bottom to top.
Implement present system specification view target object background context and different, the present embodiment are as follows: the soil in selected paddy field
For livid purple mud gley paddy soil, viscosity is relatively large, and has formed obvious plough sole, and the case system specification is long 100m, width
The rectangle paddy field of 40m, ridge overall length 280m, 4000 ㎡ of system gross area, the 1 width 25cm of operation road block of ridge, antiseepage knot
Total high (depth) 70cm of structure.The region is positioned first before implementing, hollows out the fixing layer area in installation leakage preventing structure later
The soil in space needed for block 2 and its casting concrete.
Antiseepage film 3, material are high-density polyethylene plastics (code name: HDPE；It is commonly called as antiseepage film 3), it is installed on entire antiseepage
The vertical middle of structure, 10cm, the 20cm below 2 underlying surface of fixing layer block below operation 1 upper pad surface of road block
In soil, basic structure is a plug-in type cut-pff wall.Antiseepage film 3 with a thickness of 1.0mm, projected life 50 years or more.Operation rule
Journey are as follows: be to be cut according to design parameter to antiseepage film 3 first, every unit antiseepage film 3 is 50m long, wide 60cm, all by 6
Unit composition, adds up to 300m, wherein extra 20m is shared equally for being overlapped 6 units of linking, distance；By what is cut by specification
Antiseepage film unit is placed in the narrow limes marginis dug in advance, is then inserted into about the 95% of the 1st unit overall length in ditch, and simply with broken
It is temporarily fixed on position line side by soil, will be connected (only counterweight with hot glue method or butyl rubber at the 2nd cells overlap later
The both ends in folded region are connected), it is inserted into ditch after linking, and so on, antiseepage film 3 is finally fixed on narrow ditch with hack
It is interior, in back-filling trench when soil, about 10cm soil was backfilled before this, is compacted, watered later, after slightly be pressed repeatedly again after
It is real, it is finally backfilled to soil upper pad surface and repeats above-mentioned operation, with the closely knit of backfill region of trying hard to keep, water in field is avoided to pass through the area
It is seeped under domain.
Fixing layer block 2 plays support ridge positioned at rice field surface soil hereinafter, being the load-bearing lower layer in entire leakage preventing structure
Basic role, width 20cm, depth 25cm.The material of fixing layer block 2 is by screw-thread steel and coagulation local soil type at material
In steel be screw-thread steel that diameter is 10mm, the common commercially available label C35 that concrete uses.Operating instruction are as follows: first in thing
Conventional method setting template is inscribed in the block space for first emptying soil, while in 3 two sides of antiseepage film thin galvanized wire wiretie, every side
Setting 4, two sides while casting concrete, block straight antiseepage film 3 in real time in operation process, guarantee that it stands on middle later.
Road block 1 is operated, is located at rice field surface soil or more, underlying surface is connected with the upper pad surface of fixing layer block 2, is entire
The top layer of leakage preventing structure, the effect played operation road and prevent Soil surface water excessive, width 25cm, depth 25cm.Behaviour
Make the material of block 1 by screw-thread steel and coagulation local soil type at and the steel in material are the screw-thread steel that diameter is 10mm, concrete
The common commercially available label C35 used.The operating instruction for operating road block 1 is identical with fixing layer block 2.
A kind of construction method of the ridge leakage preventing structure of paddy field water conservation, in the present invention, target service life be 50 years with
On, element project range area is 4000 ㎡, and design specification is respectively to operate 1 width of road block as 25cm, and fixing layer block 2 is narrower than
Operating 1 width of road block is 20cm, total height 70cm, length 280m.Specifically use following steps:
A, make history, irrigation conditions, water resource and Water Pollution Problem to the quasi- paddy field soil type for implementing region, rice to carry out
Probe carries out targetedly technological design, including target life objective, works scope and design specification on this basis；
B, it is positioned in determining construction area bracing wire, in space needed for removing need to install fixing layer block 2 and its construct
Soil；
C, manually or mechanical ramming substrate, and in the middle in region position line is drawn to be positioned, it is manually or mechanical
Dig a narrow ditch to position line side, for installing antiseepage film 3, therefore its width be regarded as industry may be more narrower better, depth then basis
Design requirement；
D, antiseepage film 3 is installed vertically on to the middle of entire leakage preventing structure, below operation 1 upper pad surface of road block
10cm, the 20cm below 2 underlying surface of fixing layer block, it is specific: d1, according to design parameter antiseepage film 3 to be cut out first
It cuts, cutting forms several antiseepage film units, d2, all antiseepage film units is placed in beside the narrow ditch dug in advance, then by the 1st
About the 95% of its length of a antiseepage film unit is inserted into narrow ditch, and is at position line side, later by the 2nd antiseepage film list
Member carries out imbricate, overlapping hot glue method or glue linking with the 1st antiseepage film unit, is inserted into ditch after linking, according to
It is secondary to analogize, d3, antiseepage film 3 is fixed with hack backfill, when backfill need to be compacted repeatedly；
E, fixing layer block 2 is installed on to the middle layer of entire leakage preventing structure, and is formed with the upper downward part of antiseepage film 3,
Fixing layer block 2 is located at paddy field field face or less, and its upper pad surface and paddy field field face maintain an equal level；
F, operation road block 1 is installed on to the upper layer of entire leakage preventing structure, and is formed with part is prolonged in antiseepage film 3, behaviour
Make block 1 and be located at paddy field field face or more, and its underlying surface and paddy field field face maintain an equal level.
Critical material-antiseepage film 3 in the present invention is last century the eighties after soft pvc, chlorosulfonated polyethylene
(CSPE) and the another novel high-quality waterproof material after the macromolecules anti-seepage material such as butyl rubber.There are many rule for antiseepage film 3
The antiseepage film 3 of lattice, the suitable present invention is high density polyethylene (HDPE) antiseepage film 3 (abbreviation HDPE antiseepage film 3) therein, it is with height
Density polyethylene is that production raw material squeeze, a kind of seepage by geo-textile film being rolled by high temperature melting, is had good
Heat resistance and cold resistance, chemical stability is good, while rigidity with higher and toughness, and mechanical strength is good, and environment-protecting and non-poisonous property makes
It is environmental protection, the common impervious material for cultivating, drinking pond with features such as service life length.
Examination application of the invention the result shows that: it is in the decrement to Rice Production irrigation water and improves utilization rate of fertilizer side
Face effect is extremely significant, and under the premise of not reducing rice yield, water-saving and section fertilizer has reached 30% or more, and it is water-saving or
Claim to reduce rice field water discharge amount and improve utilization rate of fertilizer, rice field non-point source pollution loading can be effectively reduced.According to analysis, the present invention
Used seepage control technique can be widely used in the preferable paddy field of soil stickiness (including Rice Production rice field, breeding combination rice
The region of any need water storage such as field, water plant nursery), especially pass through the Rice Cropping of many years, forms plough sole already
Rice field.Therefore, market of the invention is huge, and prospect can the phase.
Examination application result of the invention also shows: system has reached design requirement to the anti-seepage effect of paddy field water, wherein preventing
It is 100% that effect is seeped in side, it is anti-lower seep effect reached 95% or more (under normal circumstances, effect can with cycle stretch-out and into
One step improves), rice growing season is water-saving to reach 40% or more, and non-point source pollution loading reduces 50% or more.Moreover, according to related work
Journey and materials specialist preresearch estimates, under the premise of no artificial damage, service life at least be can reach 50 years.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Although 1, operation road block 1 is used more herein；2, fixing layer block 2；3, the terms such as antiseepage film 3, but simultaneously
A possibility that being not excluded for using other terms.The use of these items is only for be more convenient to describe and explain sheet of the invention
Matter；Being construed as any additional limitation is disagreed with spirit of that invention.
Claims (7)
1. a kind of construction method of the ridge leakage preventing structure of paddy field water conservation, which is characterized in that including what is successively designed from top to bottom
Road block (1), fixing layer block (2) and antiseepage film (3) are operated, the operation road block (1) is concrete structure, described
Fixing layer block (2) is concrete structure, and the material of the antiseepage film (3) is high-density polyethylene plastics, specifically using following
Step:
A, make history, irrigation conditions, water resource and Water Pollution Problem to the quasi- paddy field soil type for implementing region, rice to carry out in detail
Investigation, carries out targetedly technological design, including target life objective, works scope and design specification on this basis；
B, it is positioned in determining construction area bracing wire, the mud in space needed for removing need to install fixing layer block (2) and its construct
Soil；
C, manually or mechanical ramming substrate, and in the middle in region position line is drawn to be positioned, it is manually or mechanical to fixed
A narrow ditch is dug in bit line side, for installing antiseepage film (3), therefore its width be regarded as industry may be more narrower better, depth is then according to setting
Meter requires；
D, antiseepage film (3) is installed vertically on to the middle of entire leakage preventing structure, below operation road block (1) upper pad surface
10cm, the 20cm below fixing layer block (2) underlying surface；
E, fixing layer block (2) is installed on to the middle layer of entire leakage preventing structure, and is formed with the upper downward part of antiseepage film (3),
Fixing layer block (2) is located at paddy field field face or less, and its upper pad surface and paddy field field face maintain an equal level；
F, the upper layer that road block (1) is installed on entire leakage preventing structure will be operated, and will be formed with part is prolonged in antiseepage film (3), behaviour
Make block (1) and be located at paddy field field face or more, and its underlying surface and paddy field field face maintain an equal level.
2. the construction method of the ridge leakage preventing structure of paddy field water conservation according to claim 1, which is characterized in that the step
D the following steps are included:
D1, according to design parameter antiseepage film (3) is cut first, cutting forms several antiseepage film units；
D2, all antiseepage film units are placed in the narrow ditch side dug in advance, then by the pact of the 1st antiseepage film unit its length
In the 95% narrow ditch of insertion, and be at position line side, later by the 2nd antiseepage film unit and the 1st antiseepage film unit into
Row imbricate, overlapping hot glue method or glue linking, are inserted into ditch after linking, and so on；
D3, antiseepage film (3) is fixed with hack backfill, when backfill need to be compacted repeatedly.
3. the construction method of the ridge leakage preventing structure of paddy field water conservation according to claim 2, which is characterized in that described is anti-
Seep film (3) with a thickness of 0.8-1.2mm.
4. the construction method of the ridge leakage preventing structure of paddy field water conservation according to claim 2, which is characterized in that described is anti-
Seeping film (3) includes several rectangular antiseepage film units, and the width of the antiseepage film unit is 50-65cm, several described
It is connected between antiseepage film unit using hot glue method or glue.
5. the construction method of the ridge leakage preventing structure of paddy field water conservation according to claim 2, which is characterized in that the glue
Water is butyl rubber.
6. the construction method of the ridge leakage preventing structure of paddy field water conservation according to claim 1, which is characterized in that the step
The material of fixing layer block (2) in rapid e is by screw-thread steel and coagulation local soil type at the specification of the screw-thread steel uses diameter for 8-
14mm, the concrete are located at longitudinal middle of fixing layer block (2) using common commercially available label C35, antiseepage film (3),
The width of fixing layer block (2) is 20-40cm, and high (depth) degree is 20-25cm.
7. the construction method of the ridge leakage preventing structure of paddy field water conservation according to claim 1, which is characterized in that the step
The material of operation road block (1) in rapid f is by screw-thread steel and coagulation local soil type at the specification of the screw-thread steel uses diameter for 8-
14mm, the concrete are located at longitudinal middle of operation road block (1) using common commercially available label C35, antiseepage film (3),
The width for operating road block (1) is 5-60cm, and high (depth) degree is 20-30cm.
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| CN201910589562.7A CN110199605B (en) | 2019-07-02 | 2019-07-02 | Construction method of ridge seepage-proofing structure for water retention of paddy field |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114943490A (en) * | 2022-07-22 | 2022-08-26 | 中国长江三峡集团有限公司 | Method and device for evaluating influence of canal lining on ecological water consumption of irrigation area |
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| CN114943490A (en) * | 2022-07-22 | 2022-08-26 | 中国长江三峡集团有限公司 | Method and device for evaluating influence of canal lining on ecological water consumption of irrigation area |
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| CN110199605B (en) | 2021-09-24 |
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