CN114813384A - Temperature control infiltration consolidation test system and test method capable of replacing solution - Google Patents
Temperature control infiltration consolidation test system and test method capable of replacing solution Download PDFInfo
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- CN114813384A CN114813384A CN202210269870.3A CN202210269870A CN114813384A CN 114813384 A CN114813384 A CN 114813384A CN 202210269870 A CN202210269870 A CN 202210269870A CN 114813384 A CN114813384 A CN 114813384A
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- 238000007596 consolidation process Methods 0.000 title claims abstract description 88
- 238000012360 testing method Methods 0.000 title claims abstract description 79
- 230000008595 infiltration Effects 0.000 title claims abstract description 33
- 238000001764 infiltration Methods 0.000 title claims abstract description 33
- 238000010998 test method Methods 0.000 title claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 134
- 239000002689 soil Substances 0.000 claims abstract description 55
- 230000035515 penetration Effects 0.000 claims abstract description 24
- 238000009413 insulation Methods 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 239000004575 stone Substances 0.000 claims description 18
- 230000005540 biological transmission Effects 0.000 claims description 10
- 230000035699 permeability Effects 0.000 claims description 10
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 229920001971 elastomer Polymers 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 2
- 230000003204 osmotic effect Effects 0.000 claims 2
- 229920006395 saturated elastomer Polymers 0.000 abstract description 3
- 239000013049 sediment Substances 0.000 description 7
- 239000011148 porous material Substances 0.000 description 6
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000013480 data collection Methods 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 238000012412 chemical coupling Methods 0.000 description 1
- 238000012669 compression test Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005527 soil sampling Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/18—Performing tests at high or low temperatures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/0806—Details, e.g. sample holders, mounting samples for testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0222—Temperature
- G01N2203/0224—Thermal cycling
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/025—Geometry of the test
- G01N2203/0258—Non axial, i.e. the forces not being applied along an axis of symmetry of the specimen
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0682—Spatial dimension, e.g. length, area, angle
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- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Dispersion Chemistry (AREA)
- 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 provides a temperature control infiltration consolidation test system and a test method capable of replacing solution, which are used for performing a temperature control infiltration consolidation test on a soil sample, and the test system comprises: the test bed is provided with an insulation can, a consolidation container is arranged in the insulation can, and a soil sample is arranged in the consolidation container; a water bath circulation box is arranged outside the heat insulation box; a first temperature sensor is arranged on the outer wall of the consolidation container; the temperature control water bath device is communicated with the water bath circulation box through an output pipe and a return pipe; the output pipe is used for inputting the cold bath liquid with the preset temperature in the temperature control water bath device into the water bath circulation box, and the return pipe is used for inputting the cold bath liquid in the water bath circulation box into the temperature control water bath device; and the penetration testing assembly is connected with the consolidation container. The invention has reasonable design, simple structure and convenient operation, and can implement solution replacement, temperature control consolidation and penetration test of saturated soil.
Description
Technical Field
The invention belongs to the technical field of geotechnical tests, and particularly relates to a temperature-controlled infiltration consolidation test system and a temperature-controlled infiltration consolidation test method capable of replacing a solution.
Background
As global energy demand continues to increase, development of oil and gas resources in land and shallow sea is becoming saturated, and oil and gas resource development worldwide is shifting from land and shallow sea to deep sea, so that deep sea engineering activities are becoming more frequent. The deep sea sediment is present on the sea bottom, the temperature can be reduced to below 0 ℃, and the heat conduction effect of the sea bottom oil pipeline can ensure that the temperature of the surrounding soil layer can reach above 20 ℃, so the temperature control is required. Because the deep sea sediment is in the environment with certain salinity, on one hand, the original microstructure of the deep sea sediment can be damaged if the deep sea sediment is remolded, and on the other hand, the soil sample can not be completely saturated by pore water with different required salinity by simply placing the soil sample in the salinity research environment, so that the chemical leaching is carried out to prepare different salinity samples, and then the one-dimensional compression test and the penetration test of temperature control are carried out to research the influence of the thermal-chemical coupling effect on the one-dimensional compression characteristic and the penetration characteristic of the deep sea sediment. The traditional consolidometer can not carry out the consolidation test of controllable temperature, and the traditional permeameter can not carry out the permeability test under different temperature and pressure conditions.
That is, for deep sea sediment mechanics and hydraulic test research, the prior art carries out tests through a consolidation apparatus and a permeameter, but the consolidation temperature is not controllable and the permeability test under the action of thermal coupling cannot be carried out.
Therefore, for deep sea sediment experimental study, it is a technical problem to be solved by those skilled in the art how to overcome the above technical difficulties and provide a penetration test and a consolidation test condition under different temperature and pressure conditions.
Disclosure of Invention
The invention provides a temperature-controlled infiltration consolidation test system capable of replacing solution, which at least solves the technical problems;
in order to solve the above problems, a first aspect of the present invention provides a solution-replaceable temperature-controlled infiltration consolidation test system for performing a temperature-controlled infiltration consolidation test on a soil sample, the test system comprising: the test bed is provided with an insulation can, a consolidation container is arranged in the insulation can, and the soil sample is arranged in the consolidation container; a water bath circulation box is arranged on the outer side of the heat insulation box; a first temperature sensor is arranged on the outer wall of the consolidation container; the temperature control water bath device is communicated with the water bath circulation box through an output pipe and a return pipe; the output pipe is used for inputting the water bath liquid with the preset temperature in the temperature-controlled water bath device into the water bath circulation box, and the return pipe is used for inputting the water bath liquid in the water bath circulation box into the temperature-controlled water bath device; a penetration testing assembly connected with the consolidation vessel.
In a first aspect, the consolidation vessel comprises: the base is cylindrical; the cutting ring is arranged in the cylindrical base, and the soil sample is arranged in the cutting ring; the first permeable stone is positioned at the upper part of the soil sample, and the second permeable stone is positioned at the lower part of the cutting ring; and the sample cap is arranged on the upper part of the soil sample.
In the first aspect, the consolidation container further comprises a water stop rubber ring and a fixing ring sleeve; the ring sleeve is arranged on the upper portion of the base through a screw rod, and the water stopping rubber ring is arranged between the fixed sleeve ring and the base.
In a first aspect, the penetration test assembly includes a header pipe, a first water pipe, a second water pipe, a third water pipe, and a fourth water pipe; an outlet of the water head pipe is communicated with one end of the third water pipe, and the other end of the third water pipe is communicated with the outside through a three-way valve; the three-way valve is also communicated with one end of the first water pipe, and the other end of the first water pipe is communicated with one side of the second permeable stone; one end of the second water pipe is communicated with the other side of the second permeable stone through a two-way valve; one end of the fourth water pipe is communicated with the two-way valve, and the other end of the fourth water pipe is communicated with the outside.
In a first aspect, the penetration test assembly further comprises a waterhead graduated scale; the direction of the scale marks on the water head scale is consistent with the depth direction of the water head pipe.
In a first aspect, the temperature controlled water bath apparatus comprises: sealing the housing; the sealed shell is used for containing circulating liquid; a refrigerator and a heater disposed within the sealed housing; and the output pipe is connected with the circulating pump.
In a first aspect, the temperature controlled water bath apparatus further comprises a second temperature sensor.
In a first aspect, the testing system further comprises a displacement percentage table and a pressure transmission screw; one end of the pressure transmission screw rod is pressed on the sample cap, and the other end of the pressure transmission screw rod is connected with the displacement dial indicator.
In a first aspect, the assay system further comprises: a collection assembly; the acquisition assembly comprises a data acquisition device and a PC (personal computer) end, wherein the data acquisition device is connected with the first temperature sensor, and the data acquisition device is connected with the PC end and used for transmitting acquired data signals to the PC end.
In a second aspect, the present invention provides a temperature-controlled infiltration consolidation test method for replaceable solution, which is applied to the above temperature-controlled infiltration consolidation test system for replaceable solution, and the test system includes: the soil sample evaluation device comprises a consolidation container, a water bath circulation box and a penetration testing assembly, wherein a soil sample is arranged in the evaluation container, the water bath circulation box is arranged on the outer side of the consolidation container, the penetration testing assembly is communicated with the consolidation container, and the testing method comprises the following steps: introducing the water bath circulation box through a water bath with a preset temperature so as to change the temperature of the soil sample in the consolidation container; and determining the permeability coefficient of the soil sample under different consolidation pressures through the permeability testing component, and replacing the solution in the soil sample.
Has the advantages that: the invention provides a temperature-controlled infiltration consolidation test system capable of replacing solution, which is characterized in that a soil sample is arranged in a consolidation container, a water circulation box used for controlling the temperature is arranged on the outer side of the consolidation container and communicated with a temperature-controlled water bath device, and an infiltration test component connected with the consolidation container is used for replacing pore solution in soil at different temperatures, researching the compression property of the soil sample at different temperatures and measuring the infiltration coefficients of the soil samples at different consolidation pressures and different temperatures.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a block diagram of a temperature controlled infiltration consolidation test system with replaceable solution according to a first embodiment of the present invention;
description of reference numerals:
1. a test bed;
2. a consolidation vessel;
201. a sample cap;
202. a first permeable stone;
203. a second porous stone;
204. a water stop rubber ring;
205. a screw rod;
206. cutting with a ring;
207. soil sampling;
208. a base;
209. a fixed collar;
3. a displacement dial indicator;
4. a pressure transmission screw rod;
5. a penetration testing component;
501. a water head pipe;
502. a waterhead graduated scale;
503. a three-way valve;
504. a first water pipe;
505. a second water pipe;
506. a third water pipe;
507. a two-way valve;
508. a fourth water pipe;
6. a water bath circulation box;
7. a heat preservation assembly;
701. a heat preservation box;
702. a heat-insulating layer;
8. a first temperature sensor;
9. a temperature controlled water bath device;
901. a circulation pump;
902. a second temperature sensor;
903. a refrigerator;
904. a heater;
905. a first water bath water pipe;
906. a second water bath water pipe;
10. a PC terminal;
11. a data acquisition instrument.
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
Meanwhile, in the embodiments of the present description, when an element is referred to as being "fixed to" another element, it may be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical", "horizontal", "left", "right" and the like used in the embodiments of the present specification are for illustrative purposes only and are not intended to limit the present invention.
The first embodiment is as follows:
as shown in fig. 1, in this embodiment, a temperature-controlled infiltration consolidation test system with a replaceable solution is provided, for performing a temperature-controlled infiltration consolidation test on a soil sample 207, and the test system includes:
the device comprises a test bed 1, a temperature control water bath device 9 and a penetration test assembly 5;
an insulation can 701 is arranged on the test bed 1, a consolidation container 2 is arranged in the insulation can 701, and a soil sample 207 is arranged in the consolidation container 2; a water bath circulation box 6 is arranged at the outer side of the heat insulation box 701; a first temperature sensor 8 is arranged on the outer wall of the consolidation container 2;
the temperature control water bath device 9 is communicated with the water bath circulation box 6 through an output pipe 905 and a return pipe 906; the output pipe 905 is used for inputting water with a preset temperature in the temperature-controlled water bath device 9 into the water bath circulation box 6, and the return pipe 906 is used for inputting water in the water bath circulation box 6 into the temperature-controlled water bath device 9;
the penetration test assembly 5 is connected to the consolidation vessel 2.
In the technical scheme of the first embodiment, the soil sample 207 is arranged in the consolidation container 2, the water bath circulation box 6 used for controlling the temperature is arranged on the outer side of the consolidation container 2 and is communicated with the temperature control water bath device 9, and the penetration test assembly 5 connected with the consolidation container 2 is used for replacing the pore solution in the soil at different temperatures, the compression property of the soil sample 207 at different temperatures can be researched, and the penetration coefficients of the soil samples 207 at different consolidation pressures and different temperatures can be measured. The outside of the water bath circulation box 6 is also provided with a heat preservation layer 702; wherein the heat-insulating layer 702 and the heat-insulating box jointly form the heat-insulating component 7.
As for the consolidation container 2 in the first embodiment, the first embodiment proposes an embodiment, which includes: the device comprises a base 208, a cutting ring 206, a first permeable stone 203, a second permeable stone 203 and a sample cap 201, wherein the base 208 is cylindrical; the cutting ring 206 is arranged in a cylindrical base 208, and a soil sample 207 is arranged in the cutting ring 206; the first permeable stone 202 is positioned at the upper part of the soil sample 207, and the second permeable stone 203 is positioned at the lower part of the cutting ring 206; the sample cap 201 is disposed on the upper portion of the soil sample 207.
Further, as for the consolidation container 2 in the first embodiment, the first embodiment proposes an implementation mode, which includes: the fixing ring sleeve 209 is arranged on the upper part of the base 208 through the screw rod 205, and the water-stopping rubber ring 204 is arranged between the fixing ring sleeve 209 and the base 208 so as to seal the consolidation container 2.
As for the penetration test assembly 5 in the first embodiment, the first embodiment proposes an implementation manner, which includes: the penetration test assembly 5 comprises a water head pipe 501, a first water pipe 504, a second water pipe 505, a third water pipe 506 and a fourth water pipe 508; an outlet of the water head pipe 501 is communicated with one end of a three-way valve 503, one end of a third water pipe 506 is communicated with the three-way valve 503, and the other end of the third water pipe 506 is communicated with the outside; the three-way valve 503 is also communicated with one end of a first water pipe 504, and the other end of the first water pipe 504 is communicated with one side of the second permeable stone 203; one end of the second water pipe 505 is communicated with the other side of the second permeable stone 203 through a two-way valve 507; one end of the fourth water pipe 508 is communicated with the two-way valve 507, and the other end of the fourth water pipe 508 is communicated with the outside and is used for performing a penetration test or displacing the pore solution of the soil sample 207.
Further, as for the penetration test assembly 5 in the first embodiment, the first embodiment proposes an implementation manner, which includes: a waterhead graduated scale 502; the direction of the scale lines on the head scale 502 is consistent with the depth direction of the head pipe 501, so that the water level scales in the head pipe 501 can be monitored conveniently.
As for the temperature-controlled water bath apparatus 9 in the first embodiment, the first embodiment proposes an implementation manner, which includes: a sealed casing for containing a circulating liquid, a refrigerator 903, a heater 904 and a circulating pump 901; the refrigerator 903 and the heater 904 are disposed in a sealed housing; the output pipe 905 is connected with the circulating pump 901 and used for controlling the temperature of the soil sample 207.
Further, as for the temperature-controlled water bath apparatus 9 in the first embodiment, the first embodiment proposes an implementation manner, which includes: the temperature controlled water bath apparatus 9 further comprises a second temperature sensor 902 for monitoring the temperature within the sealed housing.
For the experimental system of this embodiment, the first embodiment further provides an implementation manner, which includes: the displacement dial indicator 3 and the pressure transmission screw rod 4, wherein one end of the pressure transmission screw rod 4 is pressed on the sample cap 201, and the other end of the pressure transmission screw rod 4 is connected with the displacement dial indicator 3; for collecting deformation data of the soil sample 207.
For the experimental system of this embodiment, the first embodiment further provides an implementation manner, which includes: the collection assembly comprises a data collection instrument 11 and a PC (personal computer) end 10, the data collection instrument 11 is connected with the first temperature sensor 8, and the data collection instrument 11 is connected with the PC end 10 and used for transmitting acquired data signals to the PC end 10 so as to store and monitor test data.
In the embodiment of the invention, the first permeable stone 202 and the sample cap 201 are sequentially placed on the top of the soil sample 207, and the loading assembly carries out stress loading on the soil sample 207 in the consolidation container 2 through the sample cap 201. To allow the pore pressure to dissipate more quickly during loading, the three-way valve 503 is placed in a position to connect the first water line 504 with the third water line 506, while the two-way valve 507 is opened.
In the examples of the present invention, the permeation test procedure measures the permeation coefficient: when the soil body is compressed and deformed stably at the set temperature and the consolidation pressure, the three-way valve 503 is enabled to be connected with the water head pipe 501 and the first water pipe 504, the two-way valve 507 is opened at the same time, the water head pressure of the water head pipe 501 cannot be larger than the consolidation pressure applied to the top of the soil sample 207, the initial water head height is selected according to the permeability of the soil sample 207, water with the same temperature is added into the water head pipe 501, the change of the water head height along with the time is read by the panel of the water head scale 502, and therefore the permeability coefficient in the current soil body state is obtained.
In the present example, the soil sample 207 pore water solution was subjected to displacement: after the in-situ soil sample 207 deforms and tends to be stable under a certain consolidation pressure, the three-way valve 503 is connected with the water head pipe 501 and the first water pipe 504, the two-way valve 507 is opened, the initial water head height is selected by controlling the height of the solution bottle, the water head pressure of the solution bottle is guaranteed to be not larger than the early consolidation pressure of the soil sample 207, the deformation condition of the sample in the solution replacement process is observed, and when the deformation tends to be stable, the solution replacement can be considered to be completed, so that the deformation under chemical loading is obtained.
Example two:
the second embodiment of the present invention provides a temperature-controlled infiltration consolidation test method for a replaceable solution, which is applied to any one of the temperature-controlled infiltration consolidation test systems for replaceable solutions, and the test system includes: consolidation container 2, water bath circulation box 6, infiltration test subassembly 5 are used for setting up soil sample 207 in the consolidation container, and water bath circulation box 6 sets up in consolidation container 2's the outside, and infiltration test subassembly 5 and consolidation container 2 intercommunication, the test method includes: introducing the water bath circulation box 6 through a water bath with a preset temperature to change the temperature of the soil sample 207 in the consolidation container 2; and measuring the permeability coefficient of the soil sample under different consolidation pressures through the permeability testing component 5, and replacing the solution in the soil sample.
Since the second embodiment and the first embodiment are the same in the same inventive concept, and the structure of the second embodiment is completely the same as that of the first embodiment, the structure of the second embodiment that is substantially the same as that of the first embodiment is not described in detail, and the detailed description is not referred to the first embodiment.
Finally, it should be noted that: the above-mentioned embodiments are merely specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; and the modifications, changes or substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention. Are intended to be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (10)
1. A temperature control infiltration consolidation test system of displaceable solution for carry out temperature control infiltration consolidation test to soil sample, its characterized in that, test system includes:
the test bed is provided with an insulation can, a consolidation container is arranged in the insulation can, and the soil sample is arranged in the consolidation container; a water bath circulation box is arranged on the outer side of the heat insulation box; a first temperature sensor is arranged on the outer wall of the consolidation container;
the temperature control water bath device is communicated with the water bath circulation box through an output pipe and a return pipe; the output pipe is used for inputting the water bath liquid with the preset temperature in the temperature-controlled water bath device into the water bath circulation box, and the return pipe is used for inputting the water bath liquid in the water bath circulation box into the temperature-controlled water bath device;
a penetration testing assembly connected with the consolidation vessel.
2. The solution-replaceable, temperature-controlled infiltration consolidation test system of claim 1, wherein the consolidation container comprises:
the base is cylindrical;
the cutting ring is arranged in the cylindrical base, and the soil sample is arranged in the cutting ring;
the first permeable stone is positioned at the upper part of the soil sample, and the second permeable stone is positioned at the lower part of the cutting ring;
and the sample cap is arranged on the upper part of the first permeable stone.
3. The solution-replaceable, temperature-controlled infiltration consolidation test system of claim 2, wherein the consolidation container further comprises a water-stop rubber ring and a securing collar;
the ring sleeve is arranged on the upper portion of the base through a screw rod, and the water stopping rubber ring is arranged between the fixed sleeve ring and the base.
4. The solution-replaceable, temperature-controlled infiltration consolidation test system of claim 1, wherein the infiltration testing assembly comprises a water header pipe, a first water pipe, a second water pipe, a third water pipe, and a fourth water pipe;
an outlet of the water head pipe is communicated with one end of the third water pipe, and the other end of the third water pipe is communicated with the outside through a three-way valve;
the three-way valve is also communicated with one end of the first water pipe, and the other end of the first water pipe is communicated with one side of the second permeable stone;
one end of the second water pipe is communicated with the other side of the second permeable stone through a two-way valve;
one end of the fourth water pipe is communicated with the two-way valve, and the other end of the fourth water pipe is communicated with the outside.
5. The replaceable solution, temperature controlled infiltration consolidation test system of claim 4, wherein the infiltration testing component further comprises a waterhead graduated scale;
the direction of the scale marks on the water head scale is consistent with the depth direction of the water head pipe.
6. The replaceable solution temperature controlled infiltration consolidation test system of claim 1, wherein the temperature controlled water bath apparatus comprises:
sealing the housing; the sealed shell is used for containing circulating liquid;
a refrigerator and a heater disposed within the sealed housing;
and the output pipe is connected with the circulating pump.
7. The replaceable solution temperature controlled infiltration consolidation test system of claim 6, wherein:
the temperature-controlled water bath device also comprises a second temperature sensor.
8. The replaceable solution, temperature controlled infiltration consolidation test system of claim 1, further comprising a displacement percentage table and a pressure transmission screw;
one end of the pressure transmission screw rod is pressed on the sample cap, and the other end of the pressure transmission screw rod is connected with the displacement dial indicator.
9. The replaceable solution, temperature controlled infiltration consolidation test system of claim 1, further comprising: a collection assembly;
the acquisition assembly comprises a data acquisition instrument and a PC (personal computer) end, the data acquisition instrument is connected with the first temperature sensor, and the data acquisition instrument is connected with the PC end and used for transmitting acquired data signals to the PC end.
10. A temperature controlled osmotic consolidation test method of a replaceable solution, which is applied to a temperature controlled osmotic consolidation test system of a replaceable solution according to any of the above claims 1 to 9, the test system comprising: the soil sample penetration testing device comprises a consolidation container, a water bath circulation box and a penetration testing assembly, wherein a soil sample is arranged in the consolidation container, the water bath circulation box is arranged on the outer side of the consolidation container, and the penetration testing assembly is communicated with the consolidation container, and the soil sample penetration testing device is characterized in that the testing method comprises the following steps:
introducing the water bath circulation box through a water bath with a preset temperature so as to change the temperature of the soil sample in the consolidation container;
and determining the permeability coefficient of the soil sample under different consolidation pressures through the permeability testing component, and replacing the solution in the soil sample.
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| CN202210269870.3A CN114813384A (en) | 2022-03-18 | 2022-03-18 | Temperature control infiltration consolidation test system and test method capable of replacing solution |
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| CN202210269870.3A CN114813384A (en) | 2022-03-18 | 2022-03-18 | Temperature control infiltration consolidation test system and test method capable of replacing solution |
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