CN108088603A - Dynamic soil mechanical resistance simulation measuring and calculating device and measuring method - Google Patents
Dynamic soil mechanical resistance simulation measuring and calculating device and measuring method Download PDFInfo
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- CN108088603A CN108088603A CN201810114628.2A CN201810114628A CN108088603A CN 108088603 A CN108088603 A CN 108088603A CN 201810114628 A CN201810114628 A CN 201810114628A CN 108088603 A CN108088603 A CN 108088603A
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- 239000002689 soil Substances 0.000 title claims abstract description 79
- 238000004088 simulation Methods 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000000704 physical effect Effects 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 238000005259 measurement Methods 0.000 claims description 7
- 210000003746 feather Anatomy 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 238000001179 sorption measurement Methods 0.000 claims description 3
- 238000009313 farming Methods 0.000 abstract description 5
- 230000009605 growth rhythm Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 238000005273 aeration Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 238000007654 immersion Methods 0.000 description 2
- 238000012271 agricultural production Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention belongs to agricultural mechanical fields, measuring and calculating device and measuring method are simulated more particularly to dynamic soil mechanical resistance, including simulating container, the simulation container is the box body of closing, further include simulation air bag, the simulation air bag is elastic balloon, gas-guide tube is connected thereon, the other end of gas-guide tube is connected to inflator pump, valve is additionally provided on the gas-guide tube, flowmeter, air gauge, so as to obtain soil physical properties and the functional relation of suffered mechanical resistance in crop enlargement process under specified vol, the soil of specific physical property can also be obtained in different unit weights, the functional relation of suffered mechanical resistance in crop enlargement process.So as to study root tuber for the later stage, tuber crops growth rhythm provides basic theory data supporting, and provides data for farming guidance and support.
Description
Technical field
The invention belongs to agricultural mechanical fields, and in particular to dynamic soil mechanical resistance simulation measuring and calculating device and measuring and calculating side
Method.
Background technology
Soil is the basic resource of agricultural production.The physical property of soil is for crops, particularly root tuber, tubers
Crop growth has strong influence." farming by the inch " the precision agriculture concept proposed by foreign scholar will
Research hotspot has been advanced further towards to the measurement that becomes more meticulous of soil physical properties.
Soil mechanical resistance is the middle important branch of soil physics engineering properties.It refers to plant in continuous growth course
In, mechanical resistance that soil generates it.This mechanical resistance is expanded for root, the stem of root tuber, tuberous plant with important
Effect.
It was found by the inventors of the present invention that under different soil properties, different degree of packing condition of culture, root tuber, tuber crops are formed
It is different with the situation of expanding.For example, under water planting and aeration condition, root tuber, stem tuber only form out fibrous root, will not form root tuber;
Under the conditions of sand culture, since the soil property degree of packing is low(Unit weight is small), the mechanical resistance that root tuber, tuber crops root system are subject to is small, root tuber, block
Stem root system multiform expands that effect is undesirable, and yield is not high into bavin root;And in soil excessively viscous weight, the degree of packing of soil property is high(Hold
It is great), the mechanical resistance that root tuber, stem tuber root system are subject to is big, and into bavin root, it is also undesirable to expand effect for root tuber, stem tuber root system multiform,
Yield is not high;Only in suitable soil density(Unit weight)Under the conditions of, root tuber, stem tuber root system are subject to certain mechanical resistance item
Under part, be just conducive to root tuber, the formation of stem tuber root tuber with expanding, so as to obtain high yield.
As it can be seen that soil property, soil density and root tuber, tuber crops root, expanding for stem are formed with close contact.No
Same soil property and soil density can form different soil mechanical resistances, therefore simulate institute under measuring and calculating crop difference growth conditions
By soil mechanical resistance for instructing farming, improve yield and be of great significance.
But at present root tuber, tuber crops root, stem formed with expand in soil mechanical resistance continuous analog and measure
The equipment of aspect, there is not been reported.
The content of the invention
Pre- soil suffered in expanding is formed in order to realize continuous dynamic analog and calculate root tuber, tuber crops root, stem
Mechanical resistance, the invention discloses a kind of dynamic soil mechanical resistances to simulate measuring and calculating apparatus and method, so as to METHOD FOR CONTINUOUS DETERMINATION
And the quantitative function relation being calculated between root tuber in soil, stem tuber volume and soil mechanical resistance, it is provided for farming arrangement
With reference to.
In order to realize foregoing invention purpose, the present invention provides dynamic soil mechanical resistances to simulate measuring and calculating device, including mould
Intend the box body of container, the simulation container for closing, further include simulation air bag, the simulation air bag is elastic balloon, is connected thereon
Gas-guide tube is connect, the other end of gas-guide tube is connected to inflator pump, valve, flowmeter, air gauge are additionally provided on the gas-guide tube.
It is further preferred that container upper cover offers through hole, through hole connects the pipeline that bankets.
As it is another preferably, container lower cover be retractable roof structure.Here in order to realize retractable roof structure, hinge can be selected
With the cooperation of bolt or lock, two chip architectures on hinge are separately fixed on container lower cover and container side wall, so as to real
Existing container lower cover and container side wall can open and close type connection, upon closing, by bolt or lock realize container lower cover with
Container side wall is fixedly connected.Two bolts or lock can also be selected, it is so as to realize that whole container lower cover is calm
The effect for separating or being fixedly connected on device.
It is further preferred that further including the volume measuring and calculating container identical with box body volume, the measuring and calculating container is upper open-top
The container put.
On the basis of foregoing disclosed dynamic soil mechanical resistance simulation measuring and calculating device, we further disclose dynamic soil
Earth mechanical resistance simulates measuring method, comprises the following steps:
S1:Unaerated simulation air bag is put into simulation container, and quantitative soil to be simulated is inserted in container is simulated;Here
Described quantifying refers to extra fine quality, by the soil that extra fine quality is inserted in the fixed-analog container of known volume, so that it may
To obtain the Soil K+adsorption environment to be simulated of specified vol;
S2:The gas of certain volume amount is filled with into simulation air bag by inflator pump, volume is denoted as V1;Here certain volume
Amount is quantified by the flowmeter being connected on gas-guide tube;
S3:Air gauge show value on gas-guide tube is recorded, is denoted as P1;
S4:Stop inflation;
S5:Take out simulation air bag;
S6:Measurement simulation air bag actual volume V2;
S7:By P1 × V1=P2 × V2, P2 is calculated;
S8:Using V2 as abscissa, P2 obtains same soil to be simulated in the case that suffered by specified vol enlargement process for ordinate
The functional relation of soil mechanical resistance.
Preferably, in above-mentioned S1 steps, we insert soil to be simulated, and every layer of progress in a manner that layering loads
Feather plucking processing can so ensure the uniformity of filling soil.
Specifically, we insert soil layering.For example, the soil for 10 kilograms, we can be divided into five times and fill out
Enter, inserted every time as two kilograms.Meanwhile feather plucking processing is carried out after inserting every time, the purpose of so-called feather plucking processing is exactly logical
It crosses the forms such as vibration, shake and realizes that this layer loads the smooth of soil.
Preferably, we simulate air bag actual volume V2 using the measurement of following methods step in S6:
P1:Calculate the built-in full water of container in volume, be denoted as the V beginnings;
P2:Simulation air bag to be measured is immersed in volume measuring and calculating container;
P3:Band measurement simulation air bag is taken out, and records the volume of remaining water, is denoted as V ends;
P4:V2=V beginnings-V ends.
It is further preferred that we are also disclosed including step S9:It measures respectively under different capabilities, specific physical property soil
In the functional relation of soil mechanical resistance suffered by simulation air bag enlargement process.
Measuring and calculating for mechanical resistance suffered by different aeration quantity air bags can both be simulated in a dynamic soil mechanical resistance
It completes, can also be completed in one group of dynamic soil mechanical resistance simulation measuring and calculating device in measuring and calculating device.
When being calculated with dynamic soil mechanical resistance simulation measuring and calculating device, it is necessary to after one group of data is completed,
S1-S8 steps are repeated, second group of data is obtained, constantly repeats, what we needed until acquisition establishes functional relation needs
Multi-group data.
When being calculated with one group of dynamic soil mechanical resistance simulation measuring and calculating device, different aeration quantitys can be completed simultaneously
Data measuring and calculating, so as to directly obtain we needs establish functional relation needs multi-group data.
When being calculated with one group of dynamic soil mechanical resistance simulation measuring and calculating device, we can connect multiple gas-guide tubes
It is connected on an inflator pump with multiple ventholes, so that whole device is simpler.
Using technical solution disclosed in this invention, soil physical properties under specified vol can be obtained and expanded with crop
The functional relation of suffered mechanical resistance in journey, it is also possible to obtain the soil of specific physical property is in different unit weights, crop
The functional relation of suffered mechanical resistance in enlargement process.So as to study root tuber for the later stage, tuber crops growth rhythm provides basis
Gross data supports, and provides data for farming guidance and support.
Meanwhile dynamic soil mechanical resistance simulation measuring and calculating apparatus structure disclosed by the invention is simple and convenient to operate, and is easy to real
It is existing, there is promotion.
Specific embodiment
In order to be better understood from the present invention, below we in conjunction with specific embodiments to the present invention further explained
It states.
Embodiment 1
Dynamic soil mechanical resistance simulation measuring and calculating device as shown in Figure 1, is closing including simulation container 1, the simulation container 1
Box body, further include simulation air bag 2, it is described simulation air bag 2 be elastic balloon, thereon connect gas-guide tube 3, gas-guide tube 3 it is another
End is connected to inflator pump 6, and valve 5, flowmeter 7, air gauge 4 are additionally provided on the gas-guide tube 3.
During use, unaerated simulation air bag 2 is put into simulation container 1 by we, and is inserted and determined in container 1 is simulated
The soil to be simulated of amount;It is mentioned here quantitatively to refer to extra fine quality, by being inserted in the fixed-analog container of known volume
The soil of extra fine quality, it is possible to obtain the Soil K+adsorption environment to be simulated of specified vol;The output of gas-guide tube 3 and inflator pump 6
End docking, air gauge 4 are connected with gas-guide tube 3.Valve 5 on gas-guide tube 3 can be used for the opening and closing for controlling gas.Flowmeter 7
It is connected on the output terminal of inflator pump 6, and quantitative air charging system is collectively formed with inflator pump 6, be responsible for filling into simulation air bag 2
Enter quantitative air.
After whole device is connected, we are filled with the gas of certain volume amount by inflator pump 6 into simulation air bag 2,
Volume is denoted as V1;Here the numerical value of V1 is read by the flowmeter being connected on gas-guide tube.Then we observe air pressure
Show value on table 4 when stopping inflating, records 4 reading of enterprise table at that time, is denoted as P1.Stop inflation;Take out simulation air bag
2;Air bag immersion will be simulated to fill in the volume measuring and calculating container of water, due to simulating the immersion of air bag 2, part water is spilled off, until water
When no longer changing, simulation air bag is taken out, the volume of remaining water in volume measuring and calculating container is calculated, is begun by V(Fill water body during water
Product)Subtract V ends(The water volume when volume of water no longer changes), simulation air bag volume is obtained, is denoted as V2.
By P1 × V1=P2 × V2, P2 is calculated;
The soil to be detected of equal quality is inserted in the simulation container 1 of equal size respectively, and using above-mentioned steps, is obtained
V21, V22, V23 ... ..., V2N corresponding P21, P22, P23 ... ... P2N.
Using V2 as abscissa, P2 obtains same soil to be simulated in the case that suffered by specified vol enlargement process for ordinate
The functional relation of soil mechanical resistance.
Embodiment 2
On the basis of embodiment 1, further measure respectively under different capabilities(By being filled out in the simulation container 1 of certain volume
The soil for entering different quality obtains different unit weight), specific physical property soil is in soil machine suffered by simulation air bag enlargement process
The functional relation of tool resistance.So as to obtain one group of soil to be measured, in the case of different unit weights, suffered soil in crop enlargement process
The functional relation of mechanical resistance.
Embodiment 3
In method disclosed in embodiment 1 or embodiment 2, multiple gas-guide tubes are further preferably connected to by we in this example
One has on the inflator pump of multiple ventholes, so that whole device is simpler.
Claims (8)
1. dynamic soil mechanical resistance simulation measuring and calculating device, it is characterized in that:It is closing including simulation container, the simulation container
Box body further includes simulation air bag, and the simulation air bag is elastic balloon, connects gas-guide tube, the other end connection of gas-guide tube thereon
To inflator pump, valve, flowmeter, air gauge are additionally provided on the gas-guide tube.
2. dynamic soil mechanical resistance simulation measuring and calculating device according to claim 1, it is characterized in that:Container upper cover offers
Through hole, through hole connect the pipeline that bankets.
3. dynamic soil mechanical resistance simulation measuring and calculating device according to claim 1, it is characterized in that:Container lower cover is opening and closing
Formula structure.
4. dynamic soil mechanical resistance simulation measuring and calculating device according to claim 1, it is characterized in that:It further includes and box body body
The identical volume measuring and calculating container of product, the measuring and calculating container is the upper open-top container put.
5. dynamic soil mechanical resistance simulates measuring method, it is characterized in that:Comprise the following steps:
S1:Unaerated simulation air bag is put into simulation container, and quantitative soil to be simulated is inserted in container is simulated;Here
Described quantifying refers to extra fine quality, by the soil that extra fine quality is inserted in the fixed-analog container of known volume, so that it may
To obtain the Soil K+adsorption environment to be simulated of specified vol;
S2:The gas of certain volume amount is filled with into simulation air bag by inflator pump, volume is denoted as V1;Here certain volume
Amount is quantified by the flowmeter being connected on gas-guide tube;
S3:Air gauge show value on gas-guide tube is recorded, is denoted as P1;
S4:Stop inflation;
S5:Take out simulation air bag;
S6:Measurement simulation air bag actual volume V2;
S7:By P1 × V1=P2 × V2, P2 is calculated;
S8:Using V2 as abscissa, P2 obtains same soil to be simulated in the case that suffered by specified vol enlargement process for ordinate
The functional relation of soil mechanical resistance.
6. dynamic soil mechanical resistance according to claim 5 simulates measuring method, it is characterized in that:In S1 steps, we
Soil to be simulated, and every layer of progress feather plucking processing are inserted in a manner that layering loads.
7. dynamic soil mechanical resistance according to claim 5 simulates measuring method, it is characterized in that:Under we use in S6
State method and step measurement simulation air bag actual volume V2:
P1:Calculate the built-in full water of container in volume, be denoted as the V beginnings;
P2:Simulation air bag to be measured is immersed in volume measuring and calculating container;
P3:Band measurement simulation air bag is taken out, and records the volume of remaining water, is denoted as V ends;
P4:V2=V beginnings-V ends.
8. dynamic soil mechanical resistance according to claim 5 simulates measuring method, it is characterized in that:Further include step S9:
It measures respectively under different capabilities, specific physical property soil is closed in the function of soil mechanical resistance suffered by simulation air bag enlargement process
System.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111006805A (en) * | 2019-11-15 | 2020-04-14 | 北京空间机电研究所 | Device and method for measuring residual gas vacuum expansion force in space inflatable structure package |
CN114088272A (en) * | 2021-11-08 | 2022-02-25 | 郑州大学 | Spherical air bag type soil pressure multi-point testing device |
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US4432233A (en) * | 1982-06-24 | 1984-02-21 | The University Of Georgia | Apparatus for simulating soil mechanical impedance on root growth potential |
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CN1661356A (en) * | 2005-01-28 | 2005-08-31 | 中国科学院东北地理与农业生态研究所 | Equipment for simulating compaction of soil by machines |
CN204694391U (en) * | 2015-06-26 | 2015-10-07 | 罗晓华 | A kind ofly measure the device of root system to soil by machines pressure |
CN205538964U (en) * | 2016-04-20 | 2016-08-31 | 周建南 | Measure root system to soil mechanical pressure device |
CN208520509U (en) * | 2018-02-06 | 2019-02-19 | 江苏省农业科学院 | Dynamic soil mechanical resistance simulation measuring and calculating device |
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2018
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Patent Citations (7)
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US4432233A (en) * | 1982-06-24 | 1984-02-21 | The University Of Georgia | Apparatus for simulating soil mechanical impedance on root growth potential |
US5857289A (en) * | 1995-02-10 | 1999-01-12 | Franco Da Encarnacao; Fernando Antonio | Stressmeter |
JP2000028513A (en) * | 1998-07-10 | 2000-01-28 | Yoshitaka Oguri | Simple measuring device for air permeability of soil |
CN1661356A (en) * | 2005-01-28 | 2005-08-31 | 中国科学院东北地理与农业生态研究所 | Equipment for simulating compaction of soil by machines |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN111006805A (en) * | 2019-11-15 | 2020-04-14 | 北京空间机电研究所 | Device and method for measuring residual gas vacuum expansion force in space inflatable structure package |
CN111006805B (en) * | 2019-11-15 | 2021-06-11 | 北京空间机电研究所 | Device and method for measuring residual gas vacuum expansion force in space inflatable structure package |
CN114088272A (en) * | 2021-11-08 | 2022-02-25 | 郑州大学 | Spherical air bag type soil pressure multi-point testing device |
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