CN103115830A - Test device for simulating influence of whole root system on shearing strength of soil - Google Patents
Test device for simulating influence of whole root system on shearing strength of soil Download PDFInfo
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- CN103115830A CN103115830A CN2013100253763A CN201310025376A CN103115830A CN 103115830 A CN103115830 A CN 103115830A CN 2013100253763 A CN2013100253763 A CN 2013100253763A CN 201310025376 A CN201310025376 A CN 201310025376A CN 103115830 A CN103115830 A CN 103115830A
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a test device for simulating the influence of a whole root system on the shearing strength of soil. The device comprises a square box for bearing sample soil and a root system part, wherein the square box comprises an upper box and a lower box overlapped up and down; one end surface of the upper box is connected with a tension meter; and the other end of the tension meter is connected with a traction device. The device disclosed by the invention can quickly measure the maximum shearing force of the whole root system indoors or outdoors; the provided model can simulate various different root system structure factors such as the placing angle of the root system in soil, the distance between the root system and a shearing damage surface and the buried depth of the root system in soil; and the operation is simple and convenient, and an experimental result is reliable.
Description
Technical field
The present invention relates to a kind of test unit, relate in particular to a kind of root system integral body of simulating to the test unit of soil shear strength impact.
Background technology
Different root structure factors are different on the impact of soil shear strength, the root system angle of placing in soil for example, the distance of root system and shear breakage and the root system buried depth degree of depth in soil etc.
Also do not have at present a kind of simple to operation, experimental result to simulate reliably root system integral body to the test unit of soil shear strength impact.
Summary of the invention
The purpose of this invention is to provide a kind of simple to operation, experimental result and simulate reliably root system integral body to the test unit of soil shear strength impact.
The objective of the invention is to be achieved through the following technical solutions:
The test unit of simulation root system integral body of the present invention on the soil shear strength impact, the square box that comprises carrying sample soil and root system part, described square box comprises upper box and the lower box of the overlapping placement in up and down, an end face of described upper box is connected with tautness meter, and the other end of described tautness meter is connected with draw-gear.
As seen from the above technical solution provided by the invention, the test unit of the simulation root system integral body that the embodiment of the present invention provides on the soil shear strength impact, the square box that comprises carrying sample soil and root system part, described square box comprises upper box and the lower box of the overlapping placement in up and down, an end face of described upper box is connected with tautness meter, and the other end of described tautness meter is connected with draw-gear.Can measure at indoor or open-air Quick Measuring the maximum shear stress of root system integral body, and the model that provides can be simulated for example root system angle of placing of various different root structure factors in soil, the distance of root system and shear breakage and the root system buried depth degree of depth in soil etc., simple to operation, experimental result is reliable.
Description of drawings
The structural representation of the simulation root system integral body that Fig. 1 provides for the embodiment of the present invention on the test unit of soil shear strength impact.
In figure: 1, space in the box of carrying sample soil and root system part, 2, upper box, 3, tautness meter, 4, screw rod, 5, support, 6, handwheel, 7, lower box, 8, baffle plate.
Embodiment
The below will be described in further detail the embodiment of the present invention.
The test unit of simulation root system integral body of the present invention on soil shear strength impact, its better embodiment be as shown in Figure 1:
The square box that comprises carrying sample soil and root system part, described square box comprise upper box and the lower box of the overlapping placement in up and down, and an end face of described upper box is connected with tautness meter, and the other end of described tautness meter is connected with draw-gear.
Described draw-gear comprises support, is engaged with screw rod on described support, and the rear end of described screw rod is provided with handwheel, and the front end of described screw rod is connected with described tautness meter.
The two sides of described lower box and upper box are provided with baffle plate.
Described sample soil and root system are partly for simulating iron wire model and the soil of root structure.
Specific embodiment:
As shown in Figure 1, comprise three parts, the one, carrying sample soil and root system part, this part are that 300*300*200mm thickness is the square box that the PVC board material splice of 10mm forms by specification.Box is by upper box, and lower box and lid form, and wherein going up the box height is 100mm, and lower box is 100mm; Two are to provide the part of shear stress, and tautness meter and screw rod-Zhi that this part is 500N by range are configured to, and the support low side is placed the block that can block support; Last part is to be placed on the iron wire model that cassette interior is used for simulating root structure.
The present invention can measure at indoor or open-air Quick Measuring the maximum shear stress of root system integral body, and the model that provides can be simulated for example root system angle of placing of various different root structure factors in soil, the distance of root system and shear breakage and the root system buried depth degree of depth in soil etc., simple to operation, experimental result is reliable.Can be used for: (1) single shear resistance relatively; (2) whole root system shear resistance relatively; (3) root system strengthens the analysis of soil shearing resistance power factor; (4) the manipulated soil shear resistance relatively.
The above; only for the better embodiment of the present invention, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement are within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (4)
1. simulate root system integral body to the test unit of soil shear strength impact for one kind, it is characterized in that, the square box that comprises carrying sample soil and root system part, described square box comprises upper box and the lower box of the overlapping placement in up and down, an end face of described upper box is connected with tautness meter, and the other end of described tautness meter is connected with draw-gear.
2. the test unit of simulation root system integral body according to claim 1 on soil shear strength impact, it is characterized in that, described draw-gear comprises support, is engaged with screw rod on described support, the rear end of described screw rod is provided with handwheel, and the front end of described screw rod is connected with described tautness meter.
3. the test unit of simulation root system integral body according to claim 2 on the soil shear strength impact, is characterized in that, the two sides of described lower box and upper box are provided with baffle plate.
4. the test unit of according to claim 1,2 or 3 described simulation root system integral body on the soil shear strength impact, is characterized in that, described sample soil and root system are partly for simulating iron wire model and the soil of root structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100253763A CN103115830A (en) | 2013-01-23 | 2013-01-23 | Test device for simulating influence of whole root system on shearing strength of soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013100253763A CN103115830A (en) | 2013-01-23 | 2013-01-23 | Test device for simulating influence of whole root system on shearing strength of soil |
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| CN103115830A true CN103115830A (en) | 2013-05-22 |
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| CN2013100253763A Pending CN103115830A (en) | 2013-01-23 | 2013-01-23 | Test device for simulating influence of whole root system on shearing strength of soil |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105842157A (en) * | 2016-03-16 | 2016-08-10 | 北京林业大学 | Tester for measuring pulling-out strength of roots |
| CN106226172A (en) * | 2016-08-31 | 2016-12-14 | 云南省交通规划设计研究院 | A kind of radical operators Situ Computation device and application process |
| CN109946223A (en) * | 2019-03-19 | 2019-06-28 | 南宁学院 | A kind of cassava pulls up the rig for model test of mechanical analysis test |
| CN110609132A (en) * | 2019-10-21 | 2019-12-24 | 成都理工大学 | Device and method for measuring physical and mechanical properties of soil along depth distribution rule |
| CN113075058A (en) * | 2021-02-25 | 2021-07-06 | 云南农业大学 | Underwater root soil complex in-situ shearing device |
| CN113916664A (en) * | 2021-11-30 | 2022-01-11 | 中国科学院、水利部成都山地灾害与环境研究所 | Soil root system drawing and shearing integrated testing device |
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| CN201438167U (en) * | 2009-07-20 | 2010-04-14 | 长安大学 | Portable direct shear apparatus |
| CN201673094U (en) * | 2010-05-27 | 2010-12-15 | 中国科学院武汉岩土力学研究所 | Visual shear test device for soil-structure interactive interfaces |
| CN203037540U (en) * | 2013-01-23 | 2013-07-03 | 北京林业大学 | Tester for simulating influence of whole root system on shearing strength of soil |
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2013
- 2013-01-23 CN CN2013100253763A patent/CN103115830A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201438167U (en) * | 2009-07-20 | 2010-04-14 | 长安大学 | Portable direct shear apparatus |
| CN201673094U (en) * | 2010-05-27 | 2010-12-15 | 中国科学院武汉岩土力学研究所 | Visual shear test device for soil-structure interactive interfaces |
| CN203037540U (en) * | 2013-01-23 | 2013-07-03 | 北京林业大学 | Tester for simulating influence of whole root system on shearing strength of soil |
Non-Patent Citations (1)
| Title |
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| 胡文利等: "不同含水率水平下根-土复合体抗剪强度试验研究", 《内蒙古农业大学学报》, vol. 32, no. 1, 31 January 2011 (2011-01-31) * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105842157A (en) * | 2016-03-16 | 2016-08-10 | 北京林业大学 | Tester for measuring pulling-out strength of roots |
| CN106226172A (en) * | 2016-08-31 | 2016-12-14 | 云南省交通规划设计研究院 | A kind of radical operators Situ Computation device and application process |
| CN109946223A (en) * | 2019-03-19 | 2019-06-28 | 南宁学院 | A kind of cassava pulls up the rig for model test of mechanical analysis test |
| CN109946223B (en) * | 2019-03-19 | 2021-09-10 | 南宁学院 | Model test stand for cassava pulling mechanical analysis test |
| CN110609132A (en) * | 2019-10-21 | 2019-12-24 | 成都理工大学 | Device and method for measuring physical and mechanical properties of soil along depth distribution rule |
| CN113075058A (en) * | 2021-02-25 | 2021-07-06 | 云南农业大学 | Underwater root soil complex in-situ shearing device |
| CN113916664A (en) * | 2021-11-30 | 2022-01-11 | 中国科学院、水利部成都山地灾害与环境研究所 | Soil root system drawing and shearing integrated testing device |
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Application publication date: 20130522 |