CN107144681A - A kind of soil basic physical property index Test device and its test method - Google Patents
A kind of soil basic physical property index Test device and its test method Download PDFInfo
- Publication number
- CN107144681A CN107144681A CN201710261125.3A CN201710261125A CN107144681A CN 107144681 A CN107144681 A CN 107144681A CN 201710261125 A CN201710261125 A CN 201710261125A CN 107144681 A CN107144681 A CN 107144681A
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- soil
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- property index
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
- G01N33/246—Earth materials for water content
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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
- G01N5/04—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder
- G01N5/045—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder for determining moisture content
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
- G01N9/02—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring weight of a known volume
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
- G01N9/02—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring weight of a known volume
- G01N2009/022—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring weight of a known volume of solids
- G01N2009/026—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring weight of a known volume of solids the volume being determined by amount of fluid displaced
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- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses soil basic physical property index Test device and its test method in a kind of laboratory, device includes：Heating, drying device, it is metal plate above heating, drying device, graduated cylinder is placed on metal plate, it is visual base below heating, drying device, base is located at bottom of device, chassis interior, which is included outside the temperature sensors of high precision being connected with upper flat plate and high-precision pressure sensor, base, the timely display of a visualization, and the temperature value that the pressure value and temperature sensor that can measure the high-precision pressure sensor of chassis interior are obtained is shown in time.The present invention can obtain the whole basic physical property indexs of soil by an experimental implementation, and determining soil physical properties index relative to traditional distributed test has larger advantage.
Description
Technical field
The present invention relates to a kind of experiment for being applied to the calculating of laboratory soil basic physical property index based on oven drying method
Device.
Background technology
As the development of China's architecture industry for the physical property index of the soil pattern of collection in worksite, it is necessary to carry out soon
The measure of speed is to instruct site operation, and it is many that the measure of traditional experiment room soil basic physical property index is related to baking oven, day equality
Plant experiment equipment to determine respectively, it is necessary to carry out different experiments, test procedure is numerous and diverse, and the test period is long, it is therefore necessary to soil
Earth basic physical property index determining laboratory apparatus is improved, and to simplify experimental arrangement, improves conventional efficient.
Test method is tested by analyzing and summarizing conventional soil basic physical property index determining, finds it in laboratory
Some following shortcomings are still suffered from during middle measurement：
1st, laboratory apparatus is more and more dispersed；
2nd, experimental procedure is more；
3rd, the basic physical index of single soil pattern is determined respectively, and test number (TN) is more, and the test period is longer；
4th, there is certain error when balance weighs soil quality；
How to simplify cumbersome experimentation, realize the combination of different experiments instrument, test period cost is reduced, for carrying
Test efficiency in high laboratory has great importance.
The reason for causing disadvantage mentioned above by discovery of analyzing and researching is as follows：
1st, equipment excessively disperses, not integrated enough；
2nd, special instrument not easy to get started；
3rd, measuring instrument is not intelligent enough.
The content of the invention
There is provided a kind of phase based on oven drying method for the shortcoming that makes up conventional soil basic physical property index by the present invention
To conveniently soil density, relative density, the measure device of moisture content and saturation degree, based on visualization technique, quickly
Obtain different phase soil pattern quality.
In order to realize above-mentioned technical purpose, the present invention is achieved through the following technical solutions：
A kind of soil basic physical property index Test device, including；Discoid metal platform, its underpart is drying portion
Point；
One base, is connected to the lower section of drying part, is internally provided with being connected to the temperature sensor of discoid metallic plate
And pressure sensor, susceptor surface is provided with display；
Controller, is arranged in base, the temperature sensor, pressure sensor and display respectively with the control
Device is connected；
Soil container, is connected to the platform surface of discoid METAL HEATING PROCESS platform, for holding soil to be measured, soil container
Wall be provided with scale.
The drying part includes resistive heater and coats the closed cylinder being arranged at outside the resistive heater
Shape heat-barrier material.
The soil container is graduated cylinder.
The controller is single-chip microcomputer.
A kind of test method based on the soil basic physical property index Test device, including following steps：
S1, experimental rig is placed on experimental bench smooth in laboratory, plugged in, device display quality value to be shown
When constant, the quality m0 of soil container during without soil is recorded；
S2, take it is appropriate be undisturbed the initial soil that volume is V0 and be put into soil container, device display quality to be shown is constant
When, record is equipped with the quality m1 of soil container after soil；
S3, opening dry part to heat soil pattern in soil container；
The soil moisture is constantly raised in S4, soil container, by display monitoring soil container temperature at 105 ° -110 °,
Make the moisture evaporation in soil in soil container；
When the mass value that S5, device to be shown are shown reaches constant, total constitution of soil after record soil container and drying
Measure m2；
S6, closing drying part, treat that soil container and the temperature of internal soil pattern are cooled to room temperature；
S7, after soil container is cooled to room temperature, pure water is added into soil container with graduated glue head dropper, directly
Height of water level exceedes soil in soil container, records the height of water level in now soil container and is converted into volume V1, by adding
Waterside number draws addition pure water volume V2, and the volume V3=V1-V2 of soil after drying is calculated by V1 and V2；
S8, arrangement related experiment equipment；
S9, the density according to water at 25 DEG C of normal temperature, the volume V4 of soil reclaimed water is calculated by V=(m1-m2)/ρ water；
S10, the known parameters obtained according to soil basic physical property index calculation formula by experimental rig are calculated and are unearthed
The basic physical property index of earth.
The beneficial effects of the invention are as follows：
By determine soil basic physical property index many weighing parts and heating, drying part it is integrated, it is to avoid drying and
The inefficiency that two parts test operation of weighing separation is caused, the problems such as test period is long.
Quality and temperature parameter are visualized by using high-precision pressure sensor and temperature sensor, pass through single-chip microcomputer
The software compensation technique of control makes compensation precision high, and stability is good, easy to adjust, improves the efficiency of experimentation, reduces
The operation difficulty of test operation, a variety of soil basic physical property indexs can be measured simultaneously, and the present invention is the basic physics of soil
Property index determining provides a kind of new efficient test method.
Brief description of the drawings
Fig. 1 is a kind of stereogram of soil basic physical property index Test device of the invention；
Fig. 2 is a kind of front view of soil basic physical property index Test device of the invention；
Fig. 3 is a kind of soil basic physical property index Test device circuit principle control figure of the invention；
In figure：1- bases, 2- thermal insulation boards, 3- resistive heaters, the discoid METAL HEATING PROCESS platforms of 4-, 5- graduated cylinders, 6- is shown
Device.
Embodiment
A kind of soil basic physical property index Test device of the invention is made with reference to Figure of description and specific embodiment
It is further described.
As shown in figure 1, a kind of soil basic physical property index Test device, including：Place soil examination in graduated cylinder 5, inside
Sample；
Resistive heater 3, energization can heating soil；
Base 1, positioned at drying section lower, there is the temperature sensor that is connected to discoid metallic plate inside and positioned at drying
The pressure sensor of section lower, and included measured value on the display positioned at base by single-chip microcomputer, real-time monitoring variable
The temperature of cylinder and the quality for weighing graduated cylinder and its internal soil in real time.
Utilize a kind of experimental method of soil basic physical property index Test device of the invention：Including following step
Suddenly：
S1, experimental rig is placed on experimental bench smooth in laboratory, plugged in, device display quality value to be shown
When constant, when record does not hold soil, the oeverall quality m0 of graduated cylinder；
S2, take it is appropriate be undisturbed the initial soil that volume is V0 and be put into graduated cylinder, when device display quality to be shown is constant, note
Record the oeverall quality m1 of graduated cylinder and soil；
S3, opening heater switch button, make to be powered to heating soil pattern in graduated cylinder in coil；
The soil moisture is constantly raised in S4, graduated cylinder, by display monitoring graduated cylinder temperature at 105 ° -110 °, is made in graduated cylinder
Moisture evaporation in soil pattern；
When S5, the quality show value of device to be shown reach constant, the oeverall quality m2 of soil after record graduated cylinder and drying；
S6, closing resistive heater, treat that the temperature of graduated cylinder and soil pattern is cooled to room temperature；
S7, after graduated cylinder is cooled to room temperature, with adding pure water into graduated cylinder with graduated glue head dropper until water level is high
Degree exceedes after soil to a certain scale V1 in graduated cylinder, draws addition pure water volume V2 by number of water, and calculate soil after drying
The volume V3=V1-V2 of earth；
S8, arrangement related experiment equipment；
S9, the density according to water at 25 DEG C of normal temperature, the volume V4 of soil reclaimed water is calculated by V=(m1-m2)/ρ water；
S10, the known parameters obtained according to soil basic physical property index calculation formula by experimental rig are calculated and are unearthed
The basic physical property index of earth.
The Computing Principle of soil basic physical property index of the present invention is：
1) the oeverall quality m of drying unit and empty graduated cylinder0, the oeverall quality m of drying unit and graduated cylinder and soil1, dry
Equipment for drying and graduated cylinder and the oeverall quality m of dry soil2。
2) soil density ρ calculation formula：
In formula：ρ is soil density, the oeverall quality m of drying unit and empty graduated cylinder0, drying unit and graduated cylinder and soil
Oeverall quality m1, the volume of initial soil is V0。
3) specific density of solid particles Gs calculation formula：
In formula：The quality m of empty graduated cylinder0, the oeverall quality m of graduated cylinder and dry soil2, the volume V of soil after drying3,
ρωThe density of water at (4 DEG C) 4 DEG C of expressions.
4) soil moisture content calculation formula：
The moisture content (%) of ω in formula --- soil pattern, the quality m of empty graduated cylinder0, the oeverall quality of graduated cylinder and soil
m1, the oeverall quality m of graduated cylinder and dry soil2.(quality is accurate to 0.01g)
5) native saturation degree Sr
In formula：The oeverall quality m of graduated cylinder and soil1, the oeverall quality m of graduated cylinder and dry soil2, initial soil
Volume be V0, the volume V of soil after drying3, ρωThe density of water at (25 DEG C) lower 25 DEG C of laboratory normal temperature of expression.
Described above, only presently preferred embodiments of the present invention is not intended to limit the invention, every skill according to the present invention
Any trickle amendment, equivalent substitution and improvement that art is substantially made to above example, should be included in technical solution of the present invention
Protection domain within.
Claims (5)
1. a kind of soil basic physical property index Test device, it is characterised in that including；Discoid metal platform, its underpart
It is divided into drying part；
One base, is connected to the lower section of drying part, is internally provided with being connected to the temperature sensor and pressure of discoid metallic plate
Force snesor, susceptor surface is provided with display；
Controller, is arranged in base, and the temperature sensor, pressure sensor and display connect with the controller respectively
Connect；
Soil container, is connected to the platform surface of discoid METAL HEATING PROCESS platform, for holding soil to be measured, the device of soil container
Wall is provided with scale.
2. soil basic physical property index Test device according to claim 1, it is characterised in that the drying part
The closed cylindric heat-barrier material outside the resistive heater is arranged at including resistive heater and cladding.
3. soil basic physical property index Test device according to claim 1, it is characterised in that the soil container
For graduated cylinder.
4. soil basic physical property index Test device according to claim 1, it is characterised in that the controller is
Single-chip microcomputer.
5. a kind of test method based on soil basic physical property index Test device described in claim 1, it is characterised in that
Including following steps：
S1, experimental rig is placed on experimental bench smooth in laboratory, plugged in, device display quality value to be shown is constant
When, record the quality m0 of soil container during without soil；
S2, take it is appropriate be undisturbed the initial soil that volume is V0 and be put into soil container, when device display quality to be shown is constant, note
Record is equipped with the quality m1 of soil container after soil；
S3, opening dry part to heat soil pattern in soil container；
The soil moisture is constantly raised in S4, soil container, by display monitoring soil container temperature in 105o-110o, makes Sheng
Moisture evaporation in soil container in soil；
When the mass value that S5, device to be shown are shown reaches constant, the oeverall quality m2 of soil after record soil container and drying；
S6, closing drying part, treat that soil container and the temperature of internal soil pattern are cooled to room temperature；
S7, after soil container is cooled to room temperature, pure water is added into soil container with graduated glue head dropper, until contain
Height of water level exceedes soil in soil container, records the height of water level in now soil container and is converted into volume V1, secondary by adding water
Number draws addition pure water volume V2, and volume V3=V1- V2 of soil after drying are calculated by V1 and V2；
S8, arrangement related experiment equipment；
S9, the density according to water at 25 DEG C of normal temperature, the volume V4 of soil reclaimed water is calculated by V=(m1-m2)/ρ water；
S10, the known parameters obtained according to soil basic physical property index calculation formula by experimental rig calculate soil
Basic physical property index.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710261125.3A CN107144681A (en) | 2017-04-20 | 2017-04-20 | A kind of soil basic physical property index Test device and its test method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710261125.3A CN107144681A (en) | 2017-04-20 | 2017-04-20 | A kind of soil basic physical property index Test device and its test method |
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| Publication Number | Publication Date |
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| CN107144681A true CN107144681A (en) | 2017-09-08 |
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| CN201710261125.3A Pending CN107144681A (en) | 2017-04-20 | 2017-04-20 | A kind of soil basic physical property index Test device and its test method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107807066A (en) * | 2017-10-17 | 2018-03-16 | 东南大学 | The rapid determination device and method of soil moisture content |
| CN110865000A (en) * | 2019-12-02 | 2020-03-06 | 西安特种设备检验检测院 | System and method for continuously measuring high-temperature corrosion rate of heat-resistant steel |
| CN110967470A (en) * | 2020-02-10 | 2020-04-07 | 金华开森智能科技有限公司 | Soil moisture content check out test set |
| CN112051187A (en) * | 2020-08-26 | 2020-12-08 | 中交天津港湾工程研究院有限公司 | In-situ test and micro-disturbance sampling method for volume weight of silt returning substances at different depths in seabed foundation trench |
| CN116735417A (en) * | 2023-08-09 | 2023-09-12 | 山东博泓信息科技有限公司 | Soil humidity detection device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107807066A (en) * | 2017-10-17 | 2018-03-16 | 东南大学 | The rapid determination device and method of soil moisture content |
| CN110865000A (en) * | 2019-12-02 | 2020-03-06 | 西安特种设备检验检测院 | System and method for continuously measuring high-temperature corrosion rate of heat-resistant steel |
| CN110967470A (en) * | 2020-02-10 | 2020-04-07 | 金华开森智能科技有限公司 | Soil moisture content check out test set |
| CN110967470B (en) * | 2020-02-10 | 2020-12-08 | 惠安迎创科技有限公司 | Soil moisture content check out test set |
| CN112051187A (en) * | 2020-08-26 | 2020-12-08 | 中交天津港湾工程研究院有限公司 | In-situ test and micro-disturbance sampling method for volume weight of silt returning substances at different depths in seabed foundation trench |
| CN112051187B (en) * | 2020-08-26 | 2023-10-27 | 中交天津港湾工程研究院有限公司 | In-situ test and perturbation sampling method for volume weight of back sludge at different depths in submarine foundation trench |
| CN116735417A (en) * | 2023-08-09 | 2023-09-12 | 山东博泓信息科技有限公司 | Soil humidity detection device |
| CN116735417B (en) * | 2023-08-09 | 2023-12-29 | 山东博泓信息科技有限公司 | Soil humidity detection device |
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Application publication date: 20170908 |
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