CN109443976A - A kind of Rock And Soil moisture content easily-testing tool and method - Google Patents
A kind of Rock And Soil moisture content easily-testing tool and method Download PDFInfo
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- CN109443976A CN109443976A CN201811305800.9A CN201811305800A CN109443976A CN 109443976 A CN109443976 A CN 109443976A CN 201811305800 A CN201811305800 A CN 201811305800A CN 109443976 A CN109443976 A CN 109443976A
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- outer tube
- moisture content
- rock
- testing tool
- soil
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/02—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by absorbing or adsorbing components of a material and determining change of weight of the adsorbent, e.g. determining moisture content
- G01N5/025—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by absorbing or adsorbing components of a material and determining change of weight of the adsorbent, e.g. determining moisture content for determining moisture content
Abstract
The present invention proposes a kind of Rock And Soil moisture content easily-testing tool and method, the long term monitoring especially suitable for earthen ruins or sandstone rock cave internal moisture transition process.This tool is nesting type structure, and outer tube is homogeneous hollow cylinder timber, and inner core is strap bolt solid cylindrical stainless steel, with being easily worked, at low cost, installation process is small to damage of soil body, without power supply, it can be achieved that the advantages that indoor or field continuous monitoring.It solves traditional oven drying method low efficiency, is destructive greatly and using high-end test equipment/high disadvantage of instrument operating cost.Ruins Rock And Soil inner aqueous rate converts according to different depth wood casing moisture content, and method is simple, and accuracy is high.The present disclosure applies equally to the measurements of Different Soil shallow-layer porous media, provide powerful support for research Moisture Transfer Rule to formulate disaster/damage prevention measure.
Description
Technical field
The present invention relates to the long term monitorings for being applicable in earthen ruins or sandstone rock cave internal moisture transition process, belong to soil moisture
Monitoring technical field, and in particular to a kind of Rock And Soil moisture content easily-testing tool and method.
Background technique
Earthen ruins are the precious traces using soil as primary building material, and sandstone rock cave is the hole dug on sandstone precipice
Cave is both that human history development of civilization stays in the process, has important history, art and scientific value.But
Due to the effect of water, the ruins soil body and sandstone weathering is caused to aggravate, regional area is even collapsed, mural painting and statue in cave
Crisp alkali has occurred or plays first, preservation condition constantly deteriorates.Therefore, in order to effectively prevent the generation of ruins disease, develop, delay to lose
Location is degenerated, and porous media in the ruins soil body or sandstone is measured, and long term monitoring water translocation process is most important.Currently, domestic
Outer soil moisture content test approach specifically includes that sample tradition oven drying method and measures two kinds using soil moisture sensor.
(1) sample tradition oven drying method: being the sample that arrives collection in worksite in aluminium box, then, in baking oven by it
Drying to constant weight, finally, determining soil moisture content according to mass change before and after sample drying.This method is easy to operate, knot
Fruit is accurate, and still, in continuous mode, sample drying takes longer, and efficiency is relatively low.In addition, due to need by materials come
It is measured, it is also bigger to the destructiveness of the ruins soil body or sandstone, frequent monitoring can not be carried out.
(2) biosensor assay: measuring porous media by laying sensor in the soil body, such as: Time Domain Reflectometry
Method (TDR), frequency domain bounce technique/frequency domain method (FDR/FD method), resistivity method, capacitance method, microwave method, NEUTRON METHOD, infrared remote sensing are visited
Ground radar, gamma-rays method and nuclear magnetic resonance method etc..Such method mainly utilizes dielectric constant, magnetic conductivity or capacitor of soil sample etc.
Relation indirect between soil sample water content obtains soil moisture content.Although the laying of instruments/equipment/embedded can be disposable complete
At measurement rate is also more quick, and still, data acquisition and post-processing are complex.In addition to this, field power supply it is difficult or
Under extreme weather conditions, there are instruments/equipment can not normal operating the drawbacks of, furthermore, it would be desirable to carry out periodic maintenance to it, such as
If measuring to long-term continuity soil moisture content variation, operating cost is high.
Summary of the invention
In view of the defects existing in the prior art, the invention proposes a kind of Rock And Soil moisture content easily-testing tool and sides
Method.This tool is nesting type structure, and when installation damages smaller caused by the ontology of ruins, is adapted to a variety of bad weathers and becomes
Change, moreover, easy to operate, processing cost is low.This tool can satisfy by the quantity and metal inside length for increasing and decreasing outer tube
Different depth Rock And Soil inner aqueous rate testing requirement.Some cycles Rock And Soil porous media can be by outer tube water-cut variation
Reflected, calculation method is simple, and accuracy rate is high.
An object of the present invention is to provide a kind of Rock And Soil moisture content easily-testing tool, it is characterised in that: this test
Tool is mounting rod with inner core 2, and test device is several outer tube sleeves 1, and outer tube sleeve 1 is hollow shape, is successively nested on inner core 2,
Being mentioned on pole 3 by movable be installed on of threaded rod 7 thereon on the inner core 2.
Further, the preferred stainless steel of the inner core 2.
Further, the preferably homogeneous timber of the outer tube sleeve 1.
2 bottom end of inner core is equipped with the fixing bolt head 4 for limiting outer tube 1.
The nut 5 and gasket 6 for limiting outer tube 1 are installed on the threaded rod 7.
It is a further object of the present invention to provide a kind of application methods based on ground moisture content easily-testing tool, use step
It is rapid as follows:
Step 1: before test, every section outer tube 1 being numbered first and has weighed initial mass；
Step 2: according to the sequence of number from big to small, outer tube is successively inserted on inner core 2 from top, with nut 5 into
Row is fixed；
Step 3: when test, drilling in test position, aperture is slightly larger than housing pipe outside diameter, and hole depth is test depth.
Step 4: tool bottom end being downwardly into instrument connection, top nut 5 exposes soil body surface, fills periphery with primitive soil
Gap is simultaneously compacted.
Step 5: after some cycles, taking out testing tool, the quality after weighing every 1 moisture absorption of section outer tube, before test
The mass change of outer tube afterwards calculates different depth outer tube moisture content.
The invention has the benefit that 1, inventive article is easily worked, is at low cost, solves the high-end test of continuous use
Equipment/high the disadvantage of instrument operating cost；
2, inventive article has installation simply, easy to operate, and embodiment is smaller to the destructiveness of the ruins soil body；
3, inventive article does not need to power, and is suitable for inside the Rock And Soil of long term monitoring indoor and outdoors two types ruins
The variation of moisture content；
4, the method proposed by the present invention for calculating Rock And Soil moisture content according to outer tube moisture content, calculating process are simple, quasi-
Exactness is high, can be used for analyzing the variation of some cycles Rock And Soil inner aqueous rate and Moisture Transfer Rule.
Detailed description of the invention
Fig. 1 is the installation structure diagram of the invention；
Fig. 2 is mounting structure explosive view of the present invention；
Main component label in figure: outer tube 1；Inner core 2；Mention pole 3, fixing bolt head 4, nut 5, gasket 6, threaded rod 7.
Specific embodiment
Embodiment 1
Now in conjunction with embodiment, attached drawing, the invention will be further described:
Fig. 1 and Fig. 2 is mounting structure of the present invention, and 1 material of outer tube is homogeneous timber, every section height 10cm, shape
Shape is hollow cylinder.2 material of inner core is stainless steel, and shape is solid cylinder, and diameter dimension is 1-2mm smaller than 1 internal diameter of outer tube, bottom
End is fixing bolt head 4.4 length of fixing bolt head is identical as 1 outer diameter of outer tube, during going deep into ground, will not generate additional resistance
Hinder.2 top of inner core is equipped with threaded rod 7, and movable be nested in of threaded rod 7 mentions in pole 3.Mentioning pole 3 is operation handle.Outer tube simultaneously
1 after being nested on inner core 2, need to be fixed by nut 5 and gasket 6, prevent its movement.When processing, inside and outside outer tube 1
Diameter size can increase appropriate increase, 2 length of stainless steel inner core, 10 cm higher than test depth according to test depth.
Testing tool usage mode: before test, firstly, to be numbered to every section outer tube 1 and weigh initial mass
m1；Then, outer tube is successively inserted in inner core 2 from top by the sequence according to number from big to small, finally, being carried out with bolt 3
It is fixed.When starting test, firstly, drilling in test position, aperture is slightly larger than housing pipe outside diameter, and hole depth is test depth；Then,
Tool bottom end is downwardly into instrument connection, top nut exposes soil body surface；Finally, filling periphery gap with primitive soil and pressing
It is real.After some cycles (1 month, 1 season etc.), testing tool, the quality m after weighing every section outer tube moisture absorption are taken out2, so
Afterwards, according to the mass change of test front and back outer tube, different depth outer tube moisture content, calculation method are as follows: w are calculatedWood=(m2-
m1)/m1。
Rock And Soil measurement of water-content coefficient method: firstly, in the boring procedure that locates, a soil sample is taken every 10cm, in reality
Outer tube is in original ground when testing the indoor moisture content and above-mentioned moisture content for measuring the original Rock And Soil of different depth using oven drying method
Moisture content w in sampleIt is native firstAnd wIt is wooden first；Then, two groups of data are fitted using Origin software, determine that original Rock And Soil contains
Relational expression between water rate and the wooden casing moisture content: wSoil=f (wWood)；Finally, different depth after some cycles is surveyed the wooden casing
Moisture content wWoodAbove-mentioned formula is substituted into, Rock And Soil moisture content w is scaledSoil, and then research water translocation is distributed according to soil moisture content
Rule.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (6)
1. a kind of Rock And Soil moisture content easily-testing tool and method, it is characterised in that: this testing tool using inner core as mounting rod,
Test device is several outer tube sleeves, and outer tube sleeve is hollow shape, is successively nested on inner core, passes through spiral shell thereon on the inner core
Movable be installed on of rasp bar mentions on pole.
2. a kind of Rock And Soil moisture content easily-testing tool according to claim 1 and method, it is characterised in that: in described
Core material is stainless steel material.
3. a kind of Rock And Soil moisture content easily-testing tool according to claim 1 and method, it is characterised in that: outer tube sleeve
Material is homogeneous timber.
4. a kind of Rock And Soil moisture content easily-testing tool according to claim 1 and method, it is characterised in that: in described
Core bottom end is equipped with the fixing bolt head for limiting outer tube.
5. a kind of Rock And Soil moisture content easily-testing tool according to claim 1 and method, it is characterised in that: the spiral shell
The nut and gasket for limiting outer tube are installed on rasp bar.
6. a kind of Rock And Soil moisture content easily-testing tool according to claim 1 and method, it is characterised in that: user
Method is as follows:
Step 1: before test, every section outer tube being numbered first and has weighed initial mass；
Step 2: according to the sequence of number from big to small, outer tube being successively inserted on inner core from top, is fixed with nut；
Step 3: when test, drilling in test position, aperture is slightly larger than the outer diameter of outer tube, and hole depth is test depth；
Step 4: testing tool bottom end being downwardly into instrument connection, top nut exposes soil body surface, fills periphery with primitive soil
Gap is simultaneously compacted；
Step 5: after some cycles, taking out testing tool, the quality after weighing every section outer tube moisture absorption, according to test front and back housing
The mass change of pipe calculates different depth outer tube moisture content.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811305800.9A CN109443976A (en) | 2018-11-05 | 2018-11-05 | A kind of Rock And Soil moisture content easily-testing tool and method |
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| CN201811305800.9A CN109443976A (en) | 2018-11-05 | 2018-11-05 | A kind of Rock And Soil moisture content easily-testing tool and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113504270A (en) * | 2021-09-06 | 2021-10-15 | 中南大学 | Cohesive soil water content tester and method based on heating vaporization method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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