CN101889488A - Raw heavily-salinized soil reclamation method and device - Google Patents
Raw heavily-salinized soil reclamation method and device Download PDFInfo
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- CN101889488A CN101889488A CN2010102311045A CN201010231104A CN101889488A CN 101889488 A CN101889488 A CN 101889488A CN 2010102311045 A CN2010102311045 A CN 2010102311045A CN 201010231104 A CN201010231104 A CN 201010231104A CN 101889488 A CN101889488 A CN 101889488A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
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Abstract
The invention provides a raw heavily-salinized soil reclamation method and a raw heavily-salinized soil reclamation device. In the invention, subunit design is adopted, a manually controllable water-salt circulation system can be formed, water-salt flows down with the washing and penetration of rain and irrigation water, a strainer pipe structure is used as a water collection corridor, the water-salt can be discharge from a water pumping well pipe, the sound circulation of the water-salt is controlled by controlling the underground water supplementation and drainage rates in a unit, the circulation of the water-salt is performed toward a desalination direction, and thus, the land with reclaimed raw heavily-salinized soil is realized.
Description
Technical field
The present invention relates to the method and the device in a kind of improving saline soil field, relate in particular to a kind of method and device of raw heavily-salinized soil reclamation.
Background technology
" bread is the staff of life ", China's arable area can not reduce in a large number, and the red line that the arable area recoverable amount is 1,800,000,000 mu can not be broken.The farmland area that city and industrial construction take should compensate.So uncultivated area is administered by innovation, and being transformed into the good farmland is a very urgent research project.
The primary soil salination is a kind of geological disaster, and still, raw heavily-salinized soil reclamation does not also have good method and apparatus at present, and solving the primary soil salination is the important topic of studying at present.
Summary of the invention
The present invention be directed to the existing in prior technology shortcoming, and a kind of method of practicable raw heavily-salinized soil reclamation and the technical scheme of device are provided, adopt this method and device can reach the water salt supply in the artificial controlled soil and the function of drainage.
Under the concrete scheme of the method for the raw heavily-salinized soil reclamation among the present invention, a kind of method of raw heavily-salinized soil reclamation, it is characterized in that, it comprises the construction subelement, the underground water of subelement and its peripheral shallow overburden, high mineralization is isolated, block the supply of peripheral high mineralization water to subelement, hold rainfall infiltration and irrigate the supply that bleeds back water, construction subelement step is as follows:
A. excavation pit: foundation ditch is the long 30m in the end, bottom width 30m, the degree of depth 3～3.5m, side slope 1: 1, the square of length of side 36m;
B. lay antiseepage film and high mineralization underground water isolation on every side at the inwall of foundation ditch;
C. the antiseepage film upper level is embedded with the cement filter pipe structure that the right angle connects at the bottom of foundation ditch, and the right angle contacts place of a cement filter pipe structure connects the upright well casing that draws water therein, and water extracts the purpose that salt water reaches the operation of Artificial Control water salt by storing fresh water;
E. foundation ditch is filled and led up;
F. dispose soil horizon.
Wherein, after step c, the periphery that also is provided with the cement filter pipe structure in the C step and/or the well casing that draws water before the step e increases the steps d of loaded filter, and loaded filter is by the grains of sand of diameter 1～5mm
Form, the thickness of loaded filter is 10 centimeters.
The edaphic thickness of above-mentioned configuration is not less than 30cm, its salt content＜0.6 gram/100 gram soil.
What adopt when above-mentioned foundation ditch is filled and led up is former earthen backfill, removes high salinity soil layer during backfill.
Above-mentioned subelement can be united, and 4～6 subelements can be formed an agriculture sub-district.
The technical scheme of the device of the raw heavily-salinized soil reclamation among the present invention is as follows: it comprises foundation ditch, the foundation ditch inwall is provided with antiseepage film, the top that the bottom of foundation ditch is positioned at antiseepage film is provided with the cement filter pipe structure that the right angle connects, and the right angle contacts place of a cement filter pipe structure connects the upright well casing that draws water therein.
Difference according to the soil layer osmotic coefficient, above-mentioned cement filter pipe structure can adopt following two kinds of concrete structures: it comprises two cement filter pipes of level and the horizontal transverse tube that two cement filter pipes are communicated with side, tube pitch 15m or comprise three cement filter pipes of level and the horizontal transverse tube that three cement filter pipes are communicated with side, tube pitch 7.5m.
The outer periphery of the above-mentioned cement filter pipe structure and/or the well casing that draws water is equipped with loaded filter.
The beneficial effect of this programme can be learnt according to the narration to such scheme, owing to adopted the design of subelement, can form artificial controllable water-salt circulation system, rainfall and irrigation water leaching infiltration make water salt descending, the filter pipe structure can efflux by the well casing that draws water as collection gallery, with the rate controlled water salt benign cycle of the recharge of ground water in the unit and drainage, to desalination direction operation, thereby reach the purpose of raw heavily-salinized soil reclamation.
Embodiment
Fig. 1 is the structural representation of the specific embodiment of the invention.
Fig. 2, Fig. 3 are the layout drawing of filter pipe structure in the specific embodiment of the invention.
Among the figure, 1, antiseepage film, 2, the filter pipe structure, 3, the well casing that draws water, 4, filter pipe, 5, horizontal transverse tube, 6, foundation ditch.
For clearly demonstrating the technical characterstic of this programme,, this programme is set forth below by an embodiment.
Under the concrete scheme of the method for the raw heavily-salinized soil reclamation among the present invention, it comprises the construction subelement, the underground water of subelement and its peripheral shallow overburden, high mineralization is isolated, block of the supply of peripheral high mineralization water to subelement, hold rainfall infiltration and irrigate the supply that bleeds back water, construction subelement step is as follows:
A. excavation pit: foundation ditch is the long 30m in the end, bottom width 30m, the degree of depth 3～3.5m, side slope 1: 1, the square of length of side 36m;
B. lay antiseepage film and high mineralization underground water isolation on every side at the inwall of foundation ditch;
C. the antiseepage film upper level is embedded with the cement filter pipe structure that the right angle connects at the bottom of foundation ditch, and the right angle contacts place of a cement filter pipe structure connects the upright well casing that draws water therein, and water extracts the purpose that salt water reaches the operation of Artificial Control water salt by storing fresh water;
D. the periphery of the cement filter pipe structure in the c step and/or the well casing that draws water increases loaded filter, and loaded filter is made up of the grains of sand of diameter 1～5mm, and the thickness of loaded filter is 10 centimeters;
E. foundation ditch is filled and led up; What adopt when foundation ditch is filled and led up is former earthen backfill, removes high salinity soil layer during backfill.
F. dispose soil horizon; Edaphic thickness is not less than 30cm, its salt content＜0.6 gram/100 gram soil.
After subelement built up, water salt wherein was relatively independent, and subelement is accepted atmospheric precipitation and infiltrated under supply and the irrigation water impregnation and give, lixiviation salinity wherein, can draw water through chemical examination, if outside salinity＞2 grams per liter deliverying units,＜2 grams per liters can be irrigated circulation by well casing.Strengthening irrigation frequency and drainage discharge under the Artificial Control accelerates the speed of moving to the desalination direction in the unit.When the degree of mineralization of ground water in the unit＜1 grams per liter, can be used as farming and animal husbandry and people and animals drinking water source.
The subelement initial operating stage should be accelerated water salt cycle rate, after the desalination operation reaches the desalination requirement, can calculate duty and drain the water yield by water quality and soil salt content analysis data, and control maintenance water salt equilibrium rationally moves.
In order to adapt to appropriate scale of operation, a plurality of subelements are united and are helped setting up farming, herd, the farm of fishing comprehensive management, and promptly subelement can be united, and 4～6 subelements can be formed the agricultural region.
The present invention also provides a kind of device of raw heavily-salinized soil reclamation, it comprises foundation ditch 6, foundation ditch 6 inwalls are provided with antiseepage film 1, the top that the bottom of foundation ditch 6 is positioned at antiseepage film 1 is provided with the cement filter pipe structure 2 that the right angle connects, and the right angle contacts place of a cement filter pipe structure 2 connects the upright well casing 3 that draws water therein.Excavation layer is based on the stratum of silt, and cement filter pipe structure 2 comprises two cement filter pipes 4 of level and the pipe range of 5, two cement filter pipes 4 of horizontal transverse tube of two cement filter pipes, 4 connections is respectively 29 meters, 15 meters of tube pitch.Excavation layer is based on the stratum of silty clay, and cement filter pipe structure 2 comprises three cement filter pipes 4 of level and three cement filter pipes are respectively 29 meters, 10 meters of tube pitch with the pipe range of 5, three cement filter pipes 4 of horizontal transverse tube of side connection.The outer periphery of the cement filter pipe structure 2 and/or the well casing 3 that draws water is equipped with loaded filter 7.
Claims (9)
1. the method for a raw heavily-salinized soil reclamation, it is characterized in that, it comprises the construction subelement, the underground water of subelement and its peripheral shallow overburden, high mineralization is isolated, block of the supply of peripheral high mineralization water to subelement, hold rainfall infiltration and irrigate the supply that bleeds back water, construction subelement step is as follows:
A. excavation pit: foundation ditch is the long 30m in the end, bottom width 30m, the degree of depth 3～3.5m, side slope 1: 1, the square of length of side 36m;
B. lay antiseepage film and high mineralization underground water isolation on every side at the inwall of foundation ditch;
C. the antiseepage film upper level is embedded with the cement filter pipe structure that the right angle connects at the bottom of foundation ditch, and the right angle contacts place of a cement filter pipe structure connects the upright well casing that draws water therein, and water extracts the purpose that salt water reaches the operation of Artificial Control water salt by storing fresh water;
E. foundation ditch is filled and led up;
F. dispose soil horizon.
2. the method for raw heavily-salinized soil reclamation according to claim 1, it is characterized in that, after step c, the periphery that also is provided with the cement filter pipe structure in the C step and/or the well casing that draws water before the step e increases the steps d of loaded filter, loaded filter is made up of the grains of sand of diameter 1～5mm, and the thickness of loaded filter is 10 centimeters.
3. the method for raw heavily-salinized soil reclamation according to claim 1 and 2 is characterized in that, the edaphic thickness of described configuration is not less than 30cm, its salt content＜0.6 gram/100 gram soil.
4. the method for raw heavily-salinized soil reclamation according to claim 1 and 2 is characterized in that, what adopt when described foundation ditch is filled and led up is former earthen backfill, removes high salinity soil layer during backfill.
5. the method for raw heavily-salinized soil reclamation according to claim 1 and 2 is characterized in that, described subelement can be united, and 4～6 subelements can be formed an agriculture sub-district.
6. the device of a raw heavily-salinized soil reclamation, it is characterized in that, it comprises foundation ditch, the foundation ditch inwall is provided with antiseepage film, the top that the bottom of foundation ditch is positioned at antiseepage film is provided with the cement filter pipe structure that the right angle connects, and the right angle contacts place of a cement filter pipe structure connects the upright well casing that draws water therein.
7. the device of raw heavily-salinized soil reclamation according to claim 6 is characterized in that, described cement filter pipe structure comprises two cement filter pipes of level and the horizontal transverse tube that two cement filter pipes are communicated with side, tube pitch 15m.
8. the device of raw heavily-salinized soil reclamation according to claim 6 is characterized in that, described cement filter pipe structure comprises three cement filter pipes of level and the horizontal transverse tube that three cement filter pipes are communicated with side, tube pitch 7.5m.
9. the device of raw heavily-salinized soil reclamation according to claim 6 is characterized in that, the outer periphery of the described cement filter pipe structure and/or the well casing that draws water is equipped with loaded filter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102311045A CN101889488B (en) | 2010-07-20 | 2010-07-20 | Raw heavily-salinized soil reclamation method and device |
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| CN2010102311045A CN101889488B (en) | 2010-07-20 | 2010-07-20 | Raw heavily-salinized soil reclamation method and device |
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| CN101889488A true CN101889488A (en) | 2010-11-24 |
| CN101889488B CN101889488B (en) | 2012-09-26 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102726141A (en) * | 2012-07-18 | 2012-10-17 | 张永康 | Saline-alkali soil improvement facility and method |
| CN105960875A (en) * | 2016-05-06 | 2016-09-28 | 南京林业大学 | Method for improving saline-alkali soil of coastal mud flat by using charcoal cushion layer |
| CN106918486A (en) * | 2017-04-18 | 2017-07-04 | 西安长庆科技工程有限责任公司 | Every the lateral boundaries implementation method for blending drag reduction in live rain making side slope experiment |
| CN110896694A (en) * | 2019-12-03 | 2020-03-24 | 清华大学 | Method and matched facility for preventing and treating salinization of surface soil of underground reservoir |
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| JPH09137159A (en) * | 1995-11-15 | 1997-05-27 | Ohbayashi Corp | Planting method on alkali ground |
| CN1765169A (en) * | 2005-08-03 | 2006-05-03 | 东营金川水土环境工程有限公司 | System engineering technology for modifying alkaline land by use of pipe drainage method |
| CN101283656A (en) * | 2008-06-11 | 2008-10-15 | 沧州市农林科学院 | Shallow water level double salt-affected soil raw soil planting and greening method |
| CN101444155A (en) * | 2008-12-25 | 2009-06-03 | 北京精诚博桑科技有限公司 | Device and method for improving saline land |
| CN201726657U (en) * | 2010-07-20 | 2011-02-02 | 山东省地质环境监测总站 | Device for changing protogenesis severe salinized soil into fertile farmland |
-
2010
- 2010-07-20 CN CN2010102311045A patent/CN101889488B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09137159A (en) * | 1995-11-15 | 1997-05-27 | Ohbayashi Corp | Planting method on alkali ground |
| CN1765169A (en) * | 2005-08-03 | 2006-05-03 | 东营金川水土环境工程有限公司 | System engineering technology for modifying alkaline land by use of pipe drainage method |
| CN101283656A (en) * | 2008-06-11 | 2008-10-15 | 沧州市农林科学院 | Shallow water level double salt-affected soil raw soil planting and greening method |
| CN101444155A (en) * | 2008-12-25 | 2009-06-03 | 北京精诚博桑科技有限公司 | Device and method for improving saline land |
| CN201726657U (en) * | 2010-07-20 | 2011-02-02 | 山东省地质环境监测总站 | Device for changing protogenesis severe salinized soil into fertile farmland |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102726141A (en) * | 2012-07-18 | 2012-10-17 | 张永康 | Saline-alkali soil improvement facility and method |
| CN105960875A (en) * | 2016-05-06 | 2016-09-28 | 南京林业大学 | Method for improving saline-alkali soil of coastal mud flat by using charcoal cushion layer |
| CN105960875B (en) * | 2016-05-06 | 2018-06-26 | 南京林业大学 | A kind of method using charcoal bed course improvement Coastal beach alkaline land soil |
| CN106918486A (en) * | 2017-04-18 | 2017-07-04 | 西安长庆科技工程有限责任公司 | Every the lateral boundaries implementation method for blending drag reduction in live rain making side slope experiment |
| CN110896694A (en) * | 2019-12-03 | 2020-03-24 | 清华大学 | Method and matched facility for preventing and treating salinization of surface soil of underground reservoir |
| CN110896694B (en) * | 2019-12-03 | 2023-05-19 | 清华大学 | Method for preventing and controlling surface soil salinization of underground reservoir and supporting facilities |
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| CN101889488B (en) | 2012-09-26 |
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Granted publication date: 20120926 Termination date: 20130720 |