CN104535397A - Configuration device and method for clayey soil samples with specific moisture content - Google Patents
Configuration device and method for clayey soil samples with specific moisture content Download PDFInfo
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- CN104535397A CN104535397A CN201510037267.2A CN201510037267A CN104535397A CN 104535397 A CN104535397 A CN 104535397A CN 201510037267 A CN201510037267 A CN 201510037267A CN 104535397 A CN104535397 A CN 104535397A
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Abstract
The invention relates to a configuration device and a configuration method for clayey soil samples with specific moisture content, and belongs to configuration device and method for soil samples with the specific moisture content. The device is connected with a motor through slots, and a stirring paddle is arranged in a stirring box and is divided into a flaky stirring paddle and a paliform stirring paddle; a temperature sensor on the upper wall of the stirring box is connected with a control box through a lead, and an external pressurizing water injection device is connected with a ball nozzle in the stirring box through a hose; a switch door is formed in the stirring box and are used for loading and unloading soil. Clayey remoulded soil is added into the stirring box when the mixing starts, a power supply of the stirring box is switched on and the mixing time and the rotating speed are set, the soil samples are stirred, water is injected into the stirring box through the pressurizing water injection device and the stirring is carried out, and then the stirring is quickly carried out to disperse agglomerate particles; a modification amount of water is added after the temperature is stable, and the device stops after stirring so as to complete the mixing the clayey soil samples with the specific moisture content. Compared with the traditional methods, the soil sample mixed by using the device has the advantages of reduction in manual operation, precise moisture content control, uniform soil sample particles, and high degree of automation.
Description
Technical field
The present invention relates to a kind of inking device and method of Water Content Tests in Soil Samples, particularly a kind of inking device and method being applicable to the specific water percentage soil sample of cohesive soil.
Background technology
Soil's water content refers to the ratio of dry ground quality after the quality that soil sample loses when being dried to constant at 105 ~ 110 DEG C and constant, represents with percent.Configuring specific water percentage soil sample is the important content of carrying out Geotechnical Engineering shop experiment, carries out shop experiment by configuring specific water percentage soil sample, thus can find the method solving geotechnical engineering problems theoretically.
The method of centrifugal modeling indoors artificial mixing soil sample is according to Standard for test methods of earthworks " GB/T50123-1999 ", the method be first take certain mass drying grinding after manipulated soil, draw the amount of required distilled water according to the alleged Mass Calculation fetched earth, by both in open container abundant manual mix to reach the object preparing specific water percentage soil sample.But the method not only manpower of at substantial and time, and moisture can along with environment temperature, mixing time, mixing method and changing in mixing process.On the other hand, this mixing method also needs to leave standstill more than 24 hours in constant humidity cabinet after soil sample mixing completes, and this just consumes a large amount of time, affects experiment progress.
For cohesive soil, because viscosity causes more greatly the agglomerating phenomenon of specific water percentage soil sample that configures serious, this just directly causes finally shaping soil to have the unevenness of height, particularly easily cellular phenomenon is produced for the cohesive soil that dry density is less after compaction moulding, thus affect the reliability of experiment effect and experimental data.Usually, in the process of laboratory mixing high-moisture percentage cohesive soil, laboratory technician can adopt and the soil sample that mixing is good is placed on the method that the sieve of 5mm makes soil sample particle attenuate by artificial hand rubbing, thus meets the requirement of homogeneity.But the manpower of this method one side at substantial, have impact on conventional efficient, on the other hand because the artificial hand rubbing time is long, moisture must have evaporation to a certain degree in this course, finally makes the final water percentage of the soil sample of mixing there is larger error.
Summary of the invention
Technical matters: the object of this invention is to provide a kind of easy and simple to handle, produce quick, water percentage accurately, inking device and the method for the specific water percentage soil sample of a kind of cohesive soil of the agglomerating phenomenon of cohesive soil can be eliminated, solve traditional cohesive soil soil sample in mixing process water percentage easily with the impact of the factors such as environment temperature, mixing time and the easily agglomerating problem of the cohesive soil soil sample of mixing.
Technical scheme: the object of the present invention is achieved like this: this device comprises motor control box, and control box has motor start switch, auto-manual mode switch button, Timing button, rotational speed regulation knob, time display screen, temperature display; The coupling arrangement of control box and agitator tank is provided with on the right side of control box; Motor rotation axis is connected with paddle centre rotational axis by connecting draw-in groove, and paddle centre rotational axis top is connected with a sheet paddle, and bottom and a paliform stir steel bar and is connected; Agitator tank upper wall arranges a temperature sensor and a ball nozzle, and ball nozzle is connected with pressure water injection device by the external hose outside agitator tank; Pressure water injection device is provided with scale mark, pressurizing piston and pressurized handgrip; The switch gate of a handling soil is provided with on the right side of agitator tank.
The collocation method of cohesive soil of the present invention specific water percentage soil sample: because Water Content Tests in Soil Samples can have certain evaporation capacity along with the temperature of stirring duration, teeter chamber in the process stirred, this method considers that these two kinds of extraneous factors are on the impact of institute's mixing Water Content Tests in Soil Samples simultaneously, according to teeter chamber's temperature and the set stirring duration of temperature sensor feedback, thus the amount of added distilled water is revised.Water yield evaporation capacity and temperature, the numerical relation stirring duration can be expressed as: m
z=F (t, T)
Motor control box and agitator tank are placed on smooth ground, motor control box and agitator tank are assembled firmly by coupling arrangement, by the screw support adjusting gear level bottom regulating device; Take the viscosity manipulated soil needed for certain mass mixing, open chamber door on the right side of agitator tank and soil is loaded agitator tank, fasten chamber door by screw switch, ensure agitator tank good seal; Switch on power, regulate motor speed knob, by the Timing button settings soil sample mixing time; A certain amount of distilled water is added in pressure water injection device by the pressurizing piston of being taken out pressure water injection device by pressurized handgrip, re-assembly pressure water injection device, and water filling port is connected with the external hose of agitator tank, starter motor starting switch after ready, start periodic positive and negative slow stirring soil sample, in agitator tank, added the amount of the distilled water calculating gained by pressurized handgrip, regulate motor speed knob to be set to top gear after stir about 5min, soil sample starts positive and negative stirring fast simultaneously; After the temperature data of the agitator tank of temperature display feedback is stable, again in agitator tank, adds the distillation water yield according to test institute water requirement modified value by pressurized handgrip, continue quick positive and negative stirring; After stirring the stirring duration reaching default, motor quits work, disable motor starting switch, and chamber door on the right side of agitator tank opened by deenergization, the soil sample be stirred is taken out, so far completes the configuration of the specific water percentage soil sample of this cohesive soil.
Described evaporated water is the function of time and temperature, that is: m
z=F (t, T), then the total Water added needed for after revising is: m
w=m
z+ m
s, wherein, m
zfor water yield evaporation capacity, t is for stirring duration, and T is agitator tank temperature, m
sfor theory calculate institute water requirement, m
wfor the total Water that need add;
Its quality span of described viscosity manipulated soil is 1500 ~ 2000g, is designated as m
d;
The span of the distilled water added in described pressure water injection device is 1000 ~ 1500ml; The amount m of the distilled water added needed for theory calculate
sfor:
wherein w
ifor target water percentage, w
0for manipulated soil initial aqueous rate;
Described need add the distillation water yield m of correction
z=(2% ~ 5%) m
s;
Described default stirring duration is 15 ~ 20min.
Beneficial effect, owing to have employed such scheme, this device can set the speed of soil sample mixing time and stirring machine stirring, also be equipped with a temperature sensor in mixing indoor simultaneously and realize real-time monitoring temperature, finally realize digitizing display, laboratory technician can carry out necessary correction according to the numerical information of Real-time Feedback to the required water yield added, thus ensures the accuracy of water percentage.In addition, due to the special tectonic that paddle adopts, paddle not only can make the abundant mix of grogs in the process stirred, and can also realize breaking up agglomerating cohesive soil particle, thus can ensure accuracy and the homogeneity of configured Water Content Tests in Soil Samples.
Advantage: 1, device is simple to operate, workload is few, greatly reduces manpower, saves time, and can well accelerate experiment progress, improves conventional efficient;
2, carry out correction adjustment according to instant messages to institute's amount of water, the water percentage precision of the soil sample of this device institute mixing is higher, greatly reduces error, can better meet requirement of experiment.
Accompanying drawing illustrates:
Fig. 1 is electric mixing device structural representation of the present invention.
Fig. 2 is that motor control box is connected bayonet socket schematic diagram with teeter chamber.
Fig. 3 is pressure water injection apparatus structure schematic diagram of the present invention.
In figure: 1-motor start switch, 2-motor control box, 3-automatic and manual operation mode switch button, 4-Timing button, 5-motor speed control handle, 6-time display screen, 7-temperature display, 8-pulpit and agitator tank coupling arrangement, 9-connects draw-in groove, 10-motor rotation axis, 11-agitator tank, 12-temperature sensor, 13-ball nozzle, 14-external hose, 15-sheet paddle, 16-paddle centre rotational axis, 17-paliform stirs steel bar, 18-screw switch, 19-chamber door, 20-screw support, 21-pressure water injection device, 22-water filling port, 23-water filling device scale mark, 24-pressurizing piston, 25-pressurized handgrip.
Embodiment
Below in conjunction with accompanying drawing, one embodiment of the present of invention are further described:
Embodiment 1: the inking device of the specific water percentage soil sample of a kind of cohesive soil, mainly comprises motor control box 2, agitator tank 11, pressure water injection device 21, temperature sensor 12 forms.Motor is arranged in motor control box 2, motor control box 2 has motor start switch 1, auto-manual mode switch button 3, Timing button 4, motor speed control handle 5, and time display screen 6 temperature display 7.One control box and agitator tank coupling arrangement 8 are set on the right side of motor control box 2, motor rotation axis 10 is connected with paddle centre rotational axis 16 by connecting draw-in groove 9, being rotated by motor drives paddle centre rotational axis 16 in agitator tank 11 to rotate, and switches on power, opens the stirring that starting switch 1 can realize soil sample.Paddle centre rotational axis 16 top is connected with a sheet paddle 15, and bottom and a paliform stir steel bar 17 and is connected, and the agitator tank 11 upper wall position that keeps left arranges temperature sensor 12 and a ball nozzle 13.Temperature sensor 12 is connected with motor control box 2 by wire, and ball nozzle 13 is connected with pressure water injection device 21 by the external hose 14 outside agitator tank 11.Pressure water injection device 21 is one with the bottle of scale mark 23, pressurizing piston 24 can extract to facilitate to add distilled water in bottle, there is water filling port 22 in the end of pressure water injection device 21, the distilled water to injecting in agitator tank 11 needed for mixing can being realized by pressurized handgrip 25.The chamber door 19 that the native sealing of handling is good is provided with on the right side of agitator tank 11; The chamber door 19 of agitator tank is connected with screw switch 18, and screw support 20 is connected to the bottom of motor control box 2.
The compound method of cohesive soil of the present invention specific water percentage soil sample: because Water Content Tests in Soil Samples can have certain evaporation capacity along with the temperature of stirring duration, teeter chamber in the process stirred, this method considers that these two kinds of extraneous factors are on the impact of institute's mixing Water Content Tests in Soil Samples simultaneously, according to teeter chamber's temperature and the set stirring duration of temperature sensor feedback, thus the amount of added distilled water is revised.Water yield evaporation capacity and temperature, the numerical relation stirring duration can be expressed as: m
z=F (t, T)
The drying taking 1500 ~ 2000g mill after cohesive soil, the chamber door 19 opened on the right side of agitator tank 11 by screw switch 18 puts into agitator tank 11, again fastens agitator tank chamber door 19 by screw switch 18 after completing.Motor control box 2 and agitator tank 11 are assembled by coupling arrangement 8.The pressurizing piston 24 of extracting in pressure water injection device 21 adds the distilled water of 1000 ~ 1500ml, connects pressurizing piston 24, is connected by water filling port 22 by external hose 14 with the ball nozzle 13 in agitator tank 11.Switch on power and the speed control knob 5 of motor is set to low or first gear, by Timing button 4, mixing time is set, press motor start-up switch 1, start the mixing of soil sample, simultaneously by the pressurized handgrip 25 of pressure water injection device 21, in teeter chamber, slowly inject the distilled water by adding needed for theory calculate.After mixing 5min, the speed control knob 5 of motor is set to top gear, utilizes paliform to stir steel bar 17 and realize polishing to agglomerating cohesive soil particle.Read the temperature of the agitator tank 11 that temperature display 7 feeds back, after temperature stabilization, again in agitator tank 11, add the distilled water after corrected Calculation by pressure water injection device 21, continue to stir.After time to be mixed reaches the stirring duration of setting, motor quits work automatically, deenergization, and the soil sample that mixing is good is unloaded by the chamber door 19 opened on the right side of agitator tank 11 by screw switch 18, completes the mixing of the specific water percentage soil sample of this cohesive soil.
Evaporated water is the function of time and temperature, that is: m
z=F (t, T), then the total Water added needed for after revising is: m
w=m
z+ m
s, wherein, m
zfor water yield evaporation capacity, t is for stirring duration, and T is agitator tank temperature, m
sfor theory calculate institute water requirement, m
wfor the total Water that need add; Its quality span of viscosity manipulated soil is 1500 ~ 2000g, is designated as m
d; The span of the distilled water added in pressure water injection device is 1000 ~ 1500ml; The amount m of the distilled water added needed for theory calculate
sfor:
wherein w
ifor target water percentage, w
0for manipulated soil initial aqueous rate; The distillation water yield m of correction need be added
z=(2% ~ 5%) m
s; Presetting and stirring duration is 15 ~ 20min.
Claims (3)
1. an inking device for the specific water percentage of cohesive soil, is characterized in that: this device comprises motor control box, and control box has motor start switch, auto-manual mode switch button, Timing button, rotational speed regulation knob, time display screen, temperature display; The coupling arrangement of control box and agitator tank is provided with on the right side of control box; Motor rotation axis is connected with paddle centre rotational axis by connecting draw-in groove, and paddle centre rotational axis top is connected with a sheet paddle, and bottom and a paliform stir steel bar and is connected; Agitator tank upper wall arranges a temperature sensor and a ball nozzle, and ball nozzle is connected with pressure water injection device by the external hose outside agitator tank; Pressure water injection device is provided with scale mark, pressurizing piston and pressurized handgrip; The switch gate of a handling soil is provided with on the right side of agitator tank.
2. the collocation method of the specific water percentage of the cohesive soil of device according to claim 1, it is characterized in that: because Water Content Tests in Soil Samples can have certain evaporation capacity along with the temperature of stirring duration, teeter chamber in the process stirred, this method considers that these two kinds of extraneous factors are on the impact of institute's mixing Water Content Tests in Soil Samples simultaneously, according to teeter chamber's temperature and the set stirring duration of temperature sensor feedback, thus the amount of added distilled water is revised.Water yield evaporation capacity and temperature, the numerical relation stirring duration can be expressed as: m
z=F (tT)
Collocation method: motor control box and agitator tank are placed on smooth ground, assembles firmly by coupling arrangement, by the screw support adjusting gear level bottom regulating device by motor control box and agitator tank; Take the viscosity manipulated soil needed for 1500 ~ 2000g mixing, open chamber door on the right side of agitator tank and soil is loaded agitator tank, fasten chamber door by screw switch, ensure agitator tank good seal; Switch on power, regulate motor speed knob, by the Timing button settings soil sample mixing time; The distilled water of 1000 ~ 1500ml is added in pressure water injection device by the pressurizing piston of being taken out pressure water injection device by pressurized handgrip, re-assembly pressure water injection device, and water filling port is connected with the external hose of agitator tank, starter motor starting switch after ready, start periodic positive and negative slow stirring soil sample, in agitator tank, added the amount of the distilled water calculating gained by pressurized handgrip simultaneously, regulate motor speed knob to be set to top gear after stir about 5min, soil sample starts positive and negative stirring fast; After the temperature data of the agitator tank of temperature display feedback is stable, again in agitator tank, adds the distillation water yield according to test institute water requirement modified value by pressurized handgrip, continue quick positive and negative stirring; After stirring the stirring duration reaching default, motor quits work, disable motor starting switch, and chamber door on the right side of agitator tank opened by deenergization, the soil sample be stirred is taken out, so far completes the configuration of the specific water percentage soil sample of this cohesive soil.
3. the method for the inking device of the specific water percentage of a kind of cohesive soil according to claim 2, is characterized in that: described evaporated water is the function of time and temperature, that is: m
z=F (t, T), then the total Water added needed for after revising is: m
w=m
z+ m
s, wherein, m
zfor water yield evaporation capacity, t is for stirring duration, and T is agitator tank temperature, m
sfor theory calculate institute water requirement, m
wfor the total Water that need add;
Its quality span of described viscosity manipulated soil is 1500 ~ 2000g, is designated as m
d;
The span of the distilled water added in described pressure water injection device is 1000 ~ 1500ml; The amount m of the distilled water added needed for theory calculate
sfor:
wherein w
ifor target water percentage, w
ofor manipulated soil initial aqueous rate;
Described need add the distillation water yield m of correction
z=(2% ~ 5%) m
s;
Described default stirring duration is 15 ~ 20min.
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|---|---|---|---|
| CN201510037267.2A CN104535397A (en) | 2015-01-23 | 2015-01-23 | Configuration device and method for clayey soil samples with specific moisture content |
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|---|---|---|---|
| CN201510037267.2A CN104535397A (en) | 2015-01-23 | 2015-01-23 | Configuration device and method for clayey soil samples with specific moisture content |
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Cited By (8)
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| CN105115796A (en) * | 2015-07-21 | 2015-12-02 | 中南大学 | Making device for soil samples/rock samples with different moisture contents |
| CN105910862A (en) * | 2016-04-12 | 2016-08-31 | 安徽理工大学 | Configuration apparatus for soil sample specific water content |
| CN107351241A (en) * | 2017-07-26 | 2017-11-17 | 天津大学 | A kind of Homogeneous Aqueous rate manipulated soil device for formulating and its application in soil test |
| CN108572098A (en) * | 2018-06-07 | 2018-09-25 | 桂林理工大学 | A kind of experimental rig for matching moisture content automatically to soil sample |
| CN108680409A (en) * | 2018-05-15 | 2018-10-19 | 青岛理工大学 | Sample preparation device applied to fine grained soil to control compaction degree |
| CN110823658A (en) * | 2019-11-19 | 2020-02-21 | 安徽理工大学 | Soil sample specific water content configuration device |
| CN113504270A (en) * | 2021-09-06 | 2021-10-15 | 中南大学 | Cohesive soil water content tester and method based on heating vaporization method |
| CN113941266A (en) * | 2020-12-22 | 2022-01-18 | 中山大学 | Small-size integrated device of appointed moisture content of preparation and soil additive content soil sample |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105115796A (en) * | 2015-07-21 | 2015-12-02 | 中南大学 | Making device for soil samples/rock samples with different moisture contents |
| CN105115796B (en) * | 2015-07-21 | 2017-09-22 | 中南大学 | A kind of different water cut soil sample/rock sample producing device |
| CN105910862A (en) * | 2016-04-12 | 2016-08-31 | 安徽理工大学 | Configuration apparatus for soil sample specific water content |
| CN105910862B (en) * | 2016-04-12 | 2018-07-17 | 安徽理工大学 | A kind of configuration device of the specific moisture content of soil sample |
| CN107351241A (en) * | 2017-07-26 | 2017-11-17 | 天津大学 | A kind of Homogeneous Aqueous rate manipulated soil device for formulating and its application in soil test |
| CN107351241B (en) * | 2017-07-26 | 2022-12-20 | 天津大学 | Uniform water content remolded soil preparation device and application thereof in soil test |
| CN108680409A (en) * | 2018-05-15 | 2018-10-19 | 青岛理工大学 | Sample preparation device applied to fine grained soil to control compaction degree |
| CN108572098A (en) * | 2018-06-07 | 2018-09-25 | 桂林理工大学 | A kind of experimental rig for matching moisture content automatically to soil sample |
| CN110823658A (en) * | 2019-11-19 | 2020-02-21 | 安徽理工大学 | Soil sample specific water content configuration device |
| CN113941266A (en) * | 2020-12-22 | 2022-01-18 | 中山大学 | Small-size integrated device of appointed moisture content of preparation and soil additive content soil sample |
| CN113504270A (en) * | 2021-09-06 | 2021-10-15 | 中南大学 | Cohesive soil water content tester and method based on heating vaporization method |
| CN113504270B (en) * | 2021-09-06 | 2021-11-26 | 中南大学 | Cohesive soil water content tester and method based on heating vaporization method |
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Application publication date: 20150422 |
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