CN106546446A - The assembled method of independent sampling tiling sampled based on large area undisturbed soil - Google Patents
The assembled method of independent sampling tiling sampled based on large area undisturbed soil Download PDFInfo
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- CN106546446A CN106546446A CN201610904168.4A CN201610904168A CN106546446A CN 106546446 A CN106546446 A CN 106546446A CN 201610904168 A CN201610904168 A CN 201610904168A CN 106546446 A CN106546446 A CN 106546446A
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- piecemeal
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Sampling And Sample Adjustment (AREA)
Abstract
The present invention discloses the assembled method of independent sampling tiling sampled based on large area undisturbed soil, comprises the following steps:S1, in flat field of fetching earth, by lowering of watertable equipment, controlling groundwater level is all the time in fetching earth 1~below 1.5m of depth;S2, control soil body soil relative water content are between 20%~25%;S3, field of fetching earth are divided into the block that fetches earth of M × N number of comparable size, and the block order according to longitudinal direction from south to north, laterally from east to west that will fetch earth carries out dyadic ordering, and the numbering of the block that fetches earth is(M、N);When M is odd number with N, the block that fetches earth of the numbering is used as sampling piecemeal;S4, the square plate sleeve of use, gather each sampling piecemeal successively;After the soil body is separated, experimental site is transported to;S5, each sampling piecemeal that will be transported to experimental site, according to longitudinal direction order from south to north, laterally from east to west, carry out assembled restructuring according to the numbering for sampling piecemeal, obtain meeting the undisturbed soil of sampling requirement after the completion of assembly.
Description
Technical field
The present invention relates to water conservancy soil sample technical field, specifically a kind of independently to be taken based on what large area undisturbed soil was sampled
The assembled method of sample tiling.
Background technology
Undisturbed soil for disturbed soil, backfill, be the earth surface soil granule Jing hundreds of thousands years so that it is longer when
Between air slaking, the result of motion such as degrade, corrode, migrating, depositing, define distinctive layer reason construction and constitute with hole, have
The physical features such as hydrogeological parameter and dry density such as specific specific yield, feed coefficient of precipitation infiltration.Undisturbed soil is to carry out water
The basic important document of the scientific researches such as literature, hydrogeology, agrology, agronomy, environmental science.
So for undisturbed soil sampling is to carry out the science such as hydrology, hydrogeology, agrology, agronomy, environmental science
The problem that must solve of research, concerning the studies above achievement precision still to reliability.At present, soil basketing method generally has following several
Kind:
First, destructive sampling is carried out in farmland, this method is difficult to the control of the conditions such as water, fertilizer, and is difficult to weight
It is multiple to test;
2nd, the back-filling in layers compacting soil in soil filling device, and each layer soil dry bulk density is connect with representative nature soil body dry density
Closely, so as to reach the purpose of simulation undisturbed soil, but this soil basketing method is destroyed soil stratification construction and is constituted with hole, makes experiment
Research effect is had a greatly reduced quality;
3rd, general soil sampler fetches earth method, and this mode is due to lacking critical index control, or soil sample overdrying is overstocked, real
When testing, after soil body water-swellable, by the counteracting force of barrel, make original state soil layer reason construction that extruding destruction occur with hole, from
And substantially reduce the feedwater of soil and permeability, or earth pillar is excessively loose, during experiment, tube wall rapid osmotic passage is formed, made
Soil moisture monitoring is greatly improved, so as to affect the precision of related experiment achievement still to reliability.
The content of the invention
It is an object of the invention to provide the assembled method of independent sampling tiling sampled based on large area undisturbed soil, the method energy
Enough make sampling soil be close to undisturbed soil, improve the precision and reliability of soil water experiment.
The technical solution adopted for the present invention to solve the technical problems is:
The assembled method of independent sampling tiling sampled based on large area undisturbed soil, is comprised the following steps:
S1, in flat field of fetching earth, by lowering of watertable equipment, controlling groundwater level all the time in the depth 1 of fetching earth~
1.5m it is following;
S2, control soil body soil relative water content are between 20%~25%;
S3, field of fetching earth are divided into the block that fetches earth of M × N number of comparable size, will fetch earth block according to longitudinal direction from south to north, laterally by east orientation
The order in west carries out dyadic ordering, and the numbering of the block that fetches earth is(M、N);When M is odd number with N, the block conduct of fetching earth of the numbering
Sampling piecemeal;
S4, the square plate sleeve of use, gather each sampling piecemeal successively;After the soil body is separated, experimental site is transported to;
S5, each sampling piecemeal that experimental site will be transported to, according to longitudinal order from south to north, laterally from east to west, root
Assembled restructuring is carried out according to the numbering of sampling piecemeal, obtains meeting the undisturbed soil of sampling requirement after the completion of assembly.
The invention has the beneficial effects as follows, method is simple, simple operation, and sampling soil can be made to be close to undisturbed soil, soil is improved
The precision and reliability of experiment, and have without the need for Special soil sampler, low cost.
Description of the drawings
The present invention is further described with reference to the accompanying drawings and examples:
Fig. 1 is the schematic diagram of the present invention.
Specific embodiment
The present invention provides the assembled method of independent sampling tiling sampled based on large area undisturbed soil, comprises the following steps:
S1, in flat field of fetching earth, by lowering of watertable equipment, controlling groundwater level all the time in the depth 1 of fetching earth~
1.5m it is following;
S2, control soil body soil relative water content are between 20%~25%;
S3, field of fetching earth are divided into the block that fetches earth of M × N number of comparable size, will fetch earth block according to longitudinal direction from south to north, laterally by east orientation
The order in west carries out dyadic ordering, and the numbering of the block that fetches earth is(M、N);When M is odd number with N, the block conduct of fetching earth of the numbering
Sampling piecemeal;
To large-scale runoff field experiment, it is to reduce marginal condition to affect, soil filling device area is usually 4m × 6m or 4m × 8m, just at present
For equipment and the technology of fetching earth, it is difficult to once overall to sample, as shown in figure 1, the present embodiment will fetch earth field be divided into 4 × 4 1m ×
The block that fetches earth of 1m, according to longitudinal direction order number consecutively from south to north, be laterally from east to west(1,1)、(1,2)、(1,3)、(1,
4);(2,1)、(2,2)、(2,3)、(2,4);(3,1)、(3,2)、(3,3)、(3,4);(4,1)、(4,2)、(4,3)、(4,4);Its
Middle numbering is(1,1)、(1,3)、(3,1)With(3,3)Fetch earth block as sampling piecemeal;
S4, using 1m × 1m square plate sleeve, gather successively each sampling piecemeal;Sampling piecemeal is ensured, completely there is something special
Under, the piecemeal soil body is carefully disassembled, the outer soil bodys of all around stems 5cm are cut out using conventional method, and within the 5cm of sleeve outside, the soil body is adopted
Removed with the method cut, cut, by cutting, make earth pillar external diameter in sleeve be less than 2~5mm of sleeve diameter, to ensure that sleeve can be partly
Freely press;
When undisturbed soil fetch earth depth reach projected depth when, can be using wire saw from the sawed-off soil body in cylinder base opening edge, then level
Enough distances are removed, top cylinder bottom tray is refilled, is lifted to experimental site;
S5, each sampling piecemeal that experimental site will be transported to, according to order laterally from south to north, longitudinally from east to west, root
Assembled restructuring is carried out according to the numbering of sampling piecemeal, obtains meeting the undisturbed soil of sampling requirement after the completion of assembly.
The above, is only presently preferred embodiments of the present invention, not makees any pro forma restriction to the present invention;Appoint
What those of ordinary skill in the art, under without departing from technical solution of the present invention ambit, all using the side of the disclosure above
Method and technology contents make many possible variations and modification, or the equivalent reality for being revised as equivalent variations to technical solution of the present invention
Apply example.Therefore, every content without departing from technical solution of the present invention, is done to above example according to the technical spirit of the present invention
Any simple modification, equivalent, equivalence changes and modification, still fall within the range of technical solution of the present invention protection.
Claims (1)
1. the assembled method of independent sampling tiling for being sampled based on large area undisturbed soil, it is characterised in that comprise the following steps:
S1, in flat field of fetching earth, by lowering of watertable equipment, controlling groundwater level all the time in the depth 1 of fetching earth~
1.5m it is following;
S2, control soil body soil relative water content are between 20%~25%;
S3, field of fetching earth are divided into the block that fetches earth of M × N number of comparable size, will fetch earth block according to longitudinal direction from south to north, laterally by east orientation
The order in west carries out dyadic ordering, and the numbering of the block that fetches earth is(M、N);When M is odd number with N, the block conduct of fetching earth of the numbering
Sampling piecemeal;
S4, the square plate sleeve of use, gather each sampling piecemeal successively;After the soil body is separated, experimental site is transported to;
S5, each sampling piecemeal that experimental site will be transported to, according to longitudinal order from south to north, laterally from east to west, root
Assembled restructuring is carried out according to the numbering of sampling piecemeal, obtains meeting the undisturbed soil of sampling requirement after the completion of assembly.
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CN201610904168.4A CN106546446A (en) | 2016-10-18 | 2016-10-18 | The assembled method of independent sampling tiling sampled based on large area undisturbed soil |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108764401A (en) * | 2018-05-28 | 2018-11-06 | 孔令根 | It is a kind of to be easy to debate the two-dimensional marker scheme to addressing |
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CN102607883A (en) * | 2012-03-09 | 2012-07-25 | 安徽省(水利部淮河水利委员会)水利科学研究院 | Method for sampling undisturbed soil pillar for hydrogeological parameter experiment |
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JPS56160634A (en) * | 1980-05-15 | 1981-12-10 | Kawasaki Steel Corp | Collecting method for sample of furnace content after blowing out blast furnace |
DE19625125C1 (en) * | 1996-06-13 | 1997-06-05 | Lla Umwelttechnische Analytik | Soil sample extraction method |
WO2001042760A1 (en) * | 1999-12-10 | 2001-06-14 | Rutgers, The State University Of New Jersey | Powder sampling method and apparatus |
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Non-Patent Citations (2)
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Cited By (1)
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CN108764401A (en) * | 2018-05-28 | 2018-11-06 | 孔令根 | It is a kind of to be easy to debate the two-dimensional marker scheme to addressing |
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Application publication date: 20170329 |