CN103439038B - Device for measuring consolidation force of tree root system to soil - Google Patents
Device for measuring consolidation force of tree root system to soil Download PDFInfo
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- CN103439038B CN103439038B CN201310289851.8A CN201310289851A CN103439038B CN 103439038 B CN103439038 B CN 103439038B CN 201310289851 A CN201310289851 A CN 201310289851A CN 103439038 B CN103439038 B CN 103439038B
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- soil
- measuring head
- force
- root system
- measuring
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Abstract
The invention discloses a device for measuring consolidation force of a tree root system to soil. The device for measuring the consolidation force of the tree root system to the soil is used for measuring the consolidation force of the tree root system to the soil in real time. The device for measuring the consolidation force of the tree root system to the soil comprises an outer cylinder, wherein a through hole is formed in the outer cylinder, a measuring head is arranged in the through hole, one end of the measuring head is a plane, the other end of the measuring head is a conical surface, a dowel bar is arranged inside the outer cylinder, a driving cone is arranged at the bottom of the dowel bar, the conical surface of the driving cone is matched with the conical surface of the measuring head, the upper portion of the dowel bar is connected with a threaded rod, the threaded rod is matched with a nut which is fixed to the upper portion of the outer cylinder, the threaded rod is fixedly connected with a force arm, and a force meter is arranged at the tail end of the force arm. The device for measuring the consolidation force of the tree root system to the soil has the advantages of being simple in structure, convenient to use, and applicable to measurement of land with any geographic features, and really reflecting the consolidation force of the plant root system to the soil of a location.
Description
Technical field
The present invention relates to instrumentation devices field, is a kind of environmental monitoring monitoring device specifically, is more specifically a kind of soil consolidation power determinator.
Background technology
Along with being rooted in the hearts of the people of environmental protection ideas, various countries more and more pay attention to environment.Ensure that one of important means of good environment is exactly utilize plant to the consolidation of soil to prevent the desertification of soil, reduce the formation of harmful weather.Existing technology considers the situation of soil often through the coefficient of consolidation of soil, the index of coefficient of consolidation reflection soil solidifying speed.The infiltration coefficient that the coefficient of consolidation is native under depending on a certain pressure, void ratio and compressibility coefficient, therefore the coefficient of consolidation of identical with actual stress state (gravity stress and extra-stress sum) should be adopted when calculating the degree of consolidation, but the coefficient of consolidation test only carried out due to shop experiment under several fixation pressure, be difficult to coefficient of consolidation when obtaining any stress, consider from possible angle, coefficient of consolidation when should get close with actual stress state carries out evaluated settlement, when getting the coefficient of consolidation and being less than actual stress state, consolidation time is longer than actual consolidation time, Tested settlement may be greater than subsidence calculation, otherwise then result is contrary.
Because prior art is the coefficient of consolidation test only carried out in shop experiment under several fixation pressure, the real time data in somewhere, field cannot be obtained in real time, moreover, when laboratory experiment, root system of plant cuts off by the result of sampling, have impact on the effect of real root system of plant to soil consolidation power, therefore, experimental data has very large deviation.For this reason, somewhere plant fine-root is measured in real time to soil consolidation power determinator in the urgent need to one.
Summary of the invention
For measuring somewhere plant fine-root in real time to soil consolidation power, the invention provides a kind of device, its structure is as follows:
A kind of fine-root is to soil consolidation power determinator, it is characterized in that: comprise urceolus 7, described urceolus 7 arranges through hole, measuring head 3 is set in described through hole, one end of described measuring head 3 is plane, the other end is the conical surface, the inside of urceolus 7 arranges transmission rod 1, and the bottom of described transmission rod 1 arranges and drives cone 2, and the conical surface of described driving cone 2 matches with the conical surface of measuring head 3; The top of described transmission rod 1 is connected with screw rod 4, screw rod 4 and the nut screw connection being fixed on urceolus 7 top, and screw rod 4 is fixedly connected with the arm of force 5, and the end of the described arm of force 5 arranges force meter;
For ensureing the playback of measuring head 3, the bottom of described urceolus arranges fixed pulley 9, and mfg. metal cord 8 walks around the bottom that fixed pulley 9 two ends connect measuring head 3 respectively and drive cone 2;
For improving measuring accuracy, reduce the impact of root system of plant trend on measurement result, described measuring head is 4 groups, is in 90 degree; Described driving cone can be circular cone or tetrahedron;
Best implementation of the present invention is described driving cone is positive tetrahedron.
Advantage of the present invention is: structure is simple, easy to use, the land survey that is applicable to any geographic entity, and the root system of plant soil consolidation power in true this place of reflection.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is A-A view in Fig. 1;
Fig. 3 is for utilizing measurement device result curve of the present invention.
Embodiment
The present invention is illustrated below in conjunction with accompanying drawing, as shown in Figure 1 and Figure 2, the present invention includes urceolus 7, described urceolus 7 arranges through hole, measuring head 3 is set in described through hole, one end of described measuring head 3 is plane 11, and the other end is the conical surface 10, and the inside of urceolus 7 arranges transmission rod 1, the bottom of described transmission rod 1 arranges and drives cone 2, and the conical surface of described driving cone 2 matches with the conical surface of measuring head 3; The top of described transmission rod 1 is connected with screw rod 4, screw rod 4 and the nut screw connection being fixed on urceolus 7 top, and screw rod 4 is fixedly connected with the arm of force 5, and the end of the described arm of force 5 arranges force meter 6; Described force meter 6 can adopt common tautness meter or pressure gauge.
For ensureing the playback of measuring head 3, the bottom of described urceolus 7 arranges fixed pulley 9, and mfg. metal cord 8 walks around the bottom that fixed pulley 9 two ends connect measuring head 3 respectively and drive cone 2;
For improving measuring accuracy, described measuring head is 4 groups, is in 90 degree;
For adapting to different requirements, described driving cone can be circular cone or tetrahedron.
Using method of the present invention is: in measuring position predetermined in advance, hole has been dug by the external diameter of urceolus 7, device of the present invention is put into hole, move the arm of force, the arm of force drives bolt rotary, and screw drive transmission rod moves downward, the driving cone of transmission rod bottom and the taper-face contact of measuring head, measuring head is moved to the outside perpendicular to urceolus, simultaneously, is write down the data of measurement by force meter; Then measure there is no the place of root system of plant by same method, obtain correlation data.Different by the degree of depth of the distance distance of plant, measurement, a series of data can be obtained, these data and the measurement data without plant place are contrasted, just can qualitative analysis go out diverse location, different depth, different plant root system to the consolidation force of soil.
For ensureing the return of measuring head, the present invention arranges mfg. metal cord and is connected with driving cone by measuring head, when driving cone upwards to lift, pulling mfg. metal cord, being playbacked by measuring head.
Fig. 3 is measuring head planar ends when being 100 square centimeters, distance plant 1 meter and 1.5 meters time, different depth measurement bushes the result of root soil consolidation force; In figure, curve 1 is the soil consolidation power without root system of plant place; 2 is distance plant 1 meter of, and 3 is distance plant 1.5 meters of, and as seen from the figure, this plant is comparatively large at 1-1.5 rice to the consolidation force of soil, is greater than 50% than without plant place, and when being greater than 2 meters, the impact of root system of plant consolidation force is less.
Claims (4)
1. a fine-root is to soil consolidation power determinator, it is characterized in that: comprise urceolus, described urceolus arranges through hole, in described through hole, measuring head is set, one end of described measuring head is plane, the other end is the conical surface, the inside of urceolus arranges transmission rod, and the bottom of described transmission rod arranges and drives cone, and the described conical surface of cone that drives matches with the conical surface of measuring head; The top of described transmission rod is connected with screw rod, screw rod and the nut screw connection being fixed on urceolus top, and screw rod is fixedly connected with the arm of force, and the end of the described arm of force arranges force meter; The bottom of described urceolus arranges fixed pulley, and mfg. metal cord walks around the bottom that fixed pulley two ends connect measuring head respectively and drive cone.
2. device according to claim 1, is characterized in that: described measuring head is 4 groups, is in 90 degree.
3. device according to claim 1, is characterized in that: described driving cone can be circular cone or tetrahedron.
4. device according to claim 1, is characterized in that: described driving cone is positive tetrahedron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310289851.8A CN103439038B (en) | 2013-07-11 | 2013-07-11 | Device for measuring consolidation force of tree root system to soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310289851.8A CN103439038B (en) | 2013-07-11 | 2013-07-11 | Device for measuring consolidation force of tree root system to soil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103439038A CN103439038A (en) | 2013-12-11 |
| CN103439038B true CN103439038B (en) | 2015-07-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310289851.8A Expired - Fee Related CN103439038B (en) | 2013-07-11 | 2013-07-11 | Device for measuring consolidation force of tree root system to soil |
Country Status (1)
| Country | Link |
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| CN (1) | CN103439038B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1051978A (en) * | 1989-11-18 | 1991-06-05 | 吉林工业大学 | Tester for soil viscosity force |
| CN2294992Y (en) * | 1997-03-11 | 1998-10-21 | 中国人民解放军空军工程设计研究局 | Soil-sample concretion data collecting system |
| CN101603899A (en) * | 2009-07-14 | 2009-12-16 | 昆明理工大学 | Field portable experiment system for tensile mechanical property of plant root system |
| CN101684647A (en) * | 2008-09-26 | 2010-03-31 | 铁道第三勘察设计院集团有限公司 | Rotary type static sounding probe |
| CN102400456A (en) * | 2011-11-17 | 2012-04-04 | 东南大学 | Environment piezocone penetration test probe capable of testing fluorescence intensity of soil body |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1988217A1 (en) * | 2006-02-08 | 2008-11-05 | Kiso-Jiban Consultants Co., Ltd. | Searching method for acquiring ground information |
| CN200993624Y (en) * | 2006-12-19 | 2007-12-19 | 广西大学 | Portable soil bearing rigidity measuring instrument |
| CN101907543A (en) * | 2010-08-11 | 2010-12-08 | 中国水利水电科学研究院 | Method and equipment for measuring compressive strength and anti-explosion capability of tubing |
-
2013
- 2013-07-11 CN CN201310289851.8A patent/CN103439038B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1051978A (en) * | 1989-11-18 | 1991-06-05 | 吉林工业大学 | Tester for soil viscosity force |
| CN2294992Y (en) * | 1997-03-11 | 1998-10-21 | 中国人民解放军空军工程设计研究局 | Soil-sample concretion data collecting system |
| CN101684647A (en) * | 2008-09-26 | 2010-03-31 | 铁道第三勘察设计院集团有限公司 | Rotary type static sounding probe |
| CN101603899A (en) * | 2009-07-14 | 2009-12-16 | 昆明理工大学 | Field portable experiment system for tensile mechanical property of plant root system |
| CN102400456A (en) * | 2011-11-17 | 2012-04-04 | 东南大学 | Environment piezocone penetration test probe capable of testing fluorescence intensity of soil body |
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| CN103439038A (en) | 2013-12-11 |
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Granted publication date: 20150722 Termination date: 20160711 |