CN211697347U - Cooperative testing device for soil-water characteristic-resistivity of soil-rock mixture - Google Patents
Cooperative testing device for soil-water characteristic-resistivity of soil-rock mixture Download PDFInfo
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- CN211697347U CN211697347U CN202020261727.6U CN202020261727U CN211697347U CN 211697347 U CN211697347 U CN 211697347U CN 202020261727 U CN202020261727 U CN 202020261727U CN 211697347 U CN211697347 U CN 211697347U
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- rock mixture
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Abstract
The utility model discloses a cooperative test device for soil and water characteristics-resistivity of soil-rock mixture, including the analytical balance for weighing the filter paper to be tested, the sample platform located above the analytical balance and used for placing the soil-rock mixture test piece, the lifting plate located between the analytical balance and the sample platform, the lifting drive device for driving the lifting plate and the sealing cover for sealing the whole device, the sample platform is provided with filter paper via holes, the middle of the lifting plate is fixedly provided with a filter paper fixing platform, the lifting drive device enables the filter paper fixed on the filter paper fixing platform to cling to the bottom surface of the soil-rock mixture test piece or enables the lifting plate to be placed on the analytical balance through the lifting plate; the weight change of the experimental filter paper can be detected in a closed environment, the testing efficiency is improved, and meanwhile, the high testing precision is ensured.
Description
Technical Field
The utility model relates to a soil stone water and soil characteristic test device, concretely relates to be used for soil stone mixture water and soil characteristic-resistivity's collaborative testing arrangement.
Background
Unsaturated soil is a three-phase soil, and unlike saturated soil, unsaturated soil contains not only solid and liquid phases but also a gas phase. The existence of gas phase greatly complicates the property of soil, the basic characteristic of the soil is different from that of saturated soil, particularly the characteristic of soil and water is different, the characteristic of soil and water is the relation between the water content of a soil body of unsaturated soil and the suction force of a matrix of the soil body, the water content of a soil body test piece for general experiments can be measured and calculated through the total mass of the test piece, the suction force of the matrix is converted through measuring the mass of filter paper attached to the test piece after water absorption and balance in a closed environment, in the prior art, mature soil and water characteristic filter paper method measurement is realized by manually taking the filter paper out and placing the filter paper on a balance, so that the resistivity of the test piece and the water absorption and balance of the filter paper cannot be measured in time, the experimental efficiency is influenced, or the filter paper is weighed too early, the sealed environment is damaged, and the weighing and the resistivity.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at overcoming the defect among the prior art, providing a collaborative testing arrangement for soil and stone mixture water and soil characteristic-resistivity, can detect test piece resistivity and experiment filter paper weight change under the confined environment, improve efficiency of software testing, simultaneously, guarantee that the measuring accuracy is high.
The utility model discloses a cooperative test device for soil-water-soil characteristics-resistivity of soil-rock mixture, including the analytical balance that is used for weighing the measured filter paper, be located the analytical balance top be used for placing the soil-rock mixture test piece sample platform, be located the lifter plate between analytical balance and the sample platform, be used for driving the lift drive arrangement of lifter plate and be used for sealing the sealed cowling of whole device, the sample platform has seted up the filter paper via hole, the fixed filter paper fixed station that is provided with in the middle of the lifter plate, the lift drive arrangement makes the filter paper that is fixed in the filter paper fixed station hug closely in soil-rock test piece bottom surface or makes the lifter plate place on the analytical balance through the lifter plate;
the test electrode is electrically connected and fixed on the side wall of the test soil-rock mixture test piece and connected with a lead between the resistivity tester and the test electrode to hermetically penetrate through the sealing cover.
Furthermore, the lifter plate is a transverse rectangular plate, and the lifting driving device is four linear motors which are distributed and supported below four corners of the lifter plate.
Further, the lifting plate and the filter paper fixing table are both made of foam materials; the filter paper via hole is a round hole, and the filter paper fixing table is a cylindrical table.
The sample stage comprises a platform plate with a filter paper via hole in the middle and an upright post supported below the platform plate, wherein a pressure sensor for monitoring the pressure of the platform plate on the upright post is arranged between the upright post and the platform plate; the lifting plate is made of foam materials, and the filter paper fixing table is made of elastic sponge.
Further, the sealing cover is made of transparent PVC materials.
Furthermore, a line hole is formed in the side wall of the sealing cover, and a sealing ring is arranged at the line hole.
Further, the filter paper fixing ring is used for wrapping and fixing the filter paper on the filter paper fixing table.
Further, the testing electrode is four arc-shaped metal sheets which are attached to the side wall of the testing soil-rock mixture test piece in a conformal mode, and the testing electrode is fixed to the side wall of the testing soil-rock mixture test piece through an electrode fixing band.
The utility model has the advantages that: the utility model discloses a cooperative testing arrangement for soil-rock mixture water and soil characteristic-resistivity through control lift drive, can detect the weight change of test piece resistivity and filter paper under the confined environment, is convenient for improve efficiency of software testing, simultaneously, guarantees that the measuring accuracy is high to simple structure, convenient operation.
Drawings
The invention will be further described with reference to the following figures and examples:
fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
fig. 3 is a schematic view of the bottom view structure of the present invention;
fig. 4 is a schematic view of the axial viewing angle structure of the present invention.
Detailed Description
As shown in the figure, the cooperative testing device for soil-water characteristics and resistivity of the soil-rock mixture in the embodiment comprises an analytical balance 1 for weighing the tested filter paper, a sample stage 2 located above the analytical balance 1 and used for placing a soil-rock mixture test piece 10, a lifting plate 3 located between the analytical balance 1 and the sample stage 2, a lifting driving device used for driving the lifting plate 3, and a sealing cover 4 used for sealing the whole device, wherein the sample stage 2 is provided with a filter paper through hole 5, a filter paper fixing stage is fixedly arranged in the middle of the lifting plate 3, and the lifting driving device enables the filter paper fixed on the filter paper fixing stage 6 to be tightly attached to the bottom surface of the soil-rock mixture test piece or enables the lifting plate 3 to be placed on the analytical balance 1 through the lifting plate 3;
the device also comprises a resistivity tester and a test electrode, wherein the resistivity tester is used for testing the resistivity of the soil-rock mixture test piece, and the test electrode is electrically connected and fixed on the side wall of the test soil-rock mixture test piece and a lead connected between the resistivity tester and the test electrode penetrates through the sealing cover in a sealing manner; the testing electrode is four arc-shaped metal sheets 8 which are attached to the side wall of the testing soil-rock mixture test piece in a shape-fitting manner, the testing electrode is fixed to the side wall of the testing soil-rock mixture test piece through an electrode fixing band, the motor fixing band can be an adhesive tape 9, the cross section of each arc-shaped metal sheet 8 is arc-shaped, full contact between the electrode and the test piece is facilitated, and the testing electrode is arranged, so that the resistivity of the test piece can be measured simultaneously when soil and water characteristics are detected, and the experimental efficiency is improved; resistivity testers are prior art and will not be described herein.
The soil-rock mixture test piece is cylindrical and is placed above the filter paper via hole 5, the size of the filter paper via hole 5 is larger than the size of the filter paper fixing table 6 and smaller than the size of the bottom surface of the soil-rock mixture test piece, the filter paper fixing table 6 can conveniently penetrate through the filter paper via hole 5, so that the filter paper positioned on the top surface of the filter paper fixing table 6 is attached to the bottom surface of the soil-rock mixture test piece, the filter paper can fully absorb water, certainly, when the filter paper fixing table 6 rises to the maximum, the top surface of the filter paper fixing table 6 is just attached to the bottom surface of the soil-rock mixture test piece, the lifting plate 3 is placed on the analytical balance 1 after descending, the filter paper is realized, the lifting plate 3 and the filter paper fixing table 6 are integrally measured, the filter paper fixing table 6 is made of a non-water-absorbing material, the weight change of the filter, and simple structure, convenient operation.
In this embodiment, the lifting plate 3 is a horizontal rectangular plate, and the lifting driving device is four linear motors 7 which are distributed and supported below four corners of the lifting plate 3; as shown in the figure, the lifting plate 3 is pushed through the linear motor 7, the structure is simple, the realization is easy, the linear motor 7 can adopt the shensuo-x direct-current linear motor 7 of the lion king steering engine or the existing electric push rod, the lifting of the lifting plate 3 is further realized through synchronously controlling the lifting of the four linear motors 7, and the left and right directions of an experimenter during operation are transversely shown. The filter paper through hole 5 is a circular hole, and the filter paper fixing table 6 is a cylindrical table; the lifting plate 3 and the filter paper fixing table 6 are both made of foam materials; the filter paper fixing table 6 made of the foam material has certain elasticity, filter paper is favorably attached to the bottom surface of a test piece in a clinging mode, a plastic isolation film can be arranged between the filter paper fixing table 6 and the filter paper, water in the filter paper is prevented from permeating into the filter paper fixing table 6, and the foam is light in weight and is favorably used for reducing test errors.
In this embodiment, the sample stage includes a platform plate with a filter paper via hole in the middle and an upright post supported below the platform plate, and a pressure sensor for monitoring the pressure of the platform plate on the upright post is arranged between the upright post and the platform plate; the lifting plate is made of foam materials, and the filter paper fixing table is made of elastic sponge; as shown in the figure, the shown platform board is a rectangular board, four columns are provided, the pressure sensors are fixed at the top ends of the columns and supported on the platform board, the accurate control of the pressure of the filter paper is realized by adjusting the ascending height of the linear motor (the reading of the gravity-4 pressure sensors of the test piece and the platform board is equal to the supporting force of the filter paper on the test piece), the condition that the permeation is not smooth due to the undersize pressure of the filter paper or the filter paper is damaged due to the overlarge pressure of the filter paper is avoided, more importantly, after the test piece is volatilized and lightened, the constant pressing force of the filter paper at each time can be ensured, the condition that the change of.
In this embodiment, the sealing cover 4 is made of transparent PVC material; the sealed cowling 4 is circular cover, and the sealed cowling 4 is placed and is sealed in sealed glue of accessible after on the laboratory bench, perhaps places rubber seal ring between sealed cowling 4 and the laboratory bench, and the homoenergetic realizes effectively sealing.
In this embodiment, a wire hole is formed in the side wall of the sealing cover 4, and a sealing ring is arranged at the wire hole; the sealing ring is an O-shaped ring and is concentrically adhered to the wire hole through sealing glue, and the inner ring surface of the sealing ring is tightly pressed on the outer side wall of the cable, so that the cable is convenient to move while being sealed.
In the embodiment, the paper filter fixing device further comprises a filter paper fixing ring, wherein the filter paper fixing ring is used for wrapping and fixing the filter paper on the filter paper fixing table 6; the filter paper fixing ring can be a rubber band, is sleeved outside the filter paper fixing table 6 and compresses the edge of the filter paper, and is favorable for fixing stability.
Utilize the utility model discloses soil-rock mixture water and soil characteristic-resistivity's of device collaborative testing, including the following step:
step a, sampling: obtaining a soil-rock mixture test piece through a cutting ring and transporting the test piece to a laboratory;
step b, test preparation: the isolation filter paper that covers the filter paper via hole is placed to the sample bench, places soil stone mixture test piece on isolation filter paper, fixes the test electrode at soil stone mixture test piece lateral wall, fixes filter paper on the filter paper fixed station, covers the sealed cowling.
Step c, testing:
(1) the analytical balance bears the lifting platform, reads and records the reading of the analytical balance;
(2) controlling the lifting driving device to ascend to enable the filter paper on the filter paper fixing table to upwards push the isolation filter paper tightly attached to the bottom of the soil-rock mixture test piece, enabling the water in the soil-rock mixture test piece to penetrate into the filter paper on the filter paper fixing table, controlling the lifting driving device to descend after a set period of time, enabling the analytical balance to bear the lifting table, and reading and recording the reading of the analytical balance; testing and recording the resistivity through a resistivity tester;
(3) and (3) repeating the steps (1) and (2), finishing the experiment when the reading of the analytical balance is stable, and combining the experiment data to obtain the substrate suction force by the existing method.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (8)
1. The utility model provides a collaborative testing arrangement that is used for soil and water characteristics-resistivity of soil-rock mixture which characterized in that: the device comprises an analytical balance for weighing the measured filter paper, a sample platform positioned above the analytical balance and used for placing a soil-rock mixture test piece, a lifting plate positioned between the analytical balance and the sample platform, a lifting driving device used for driving the lifting plate and a sealing cover used for sealing the whole device, wherein a filter paper through hole is formed in the sample platform, a filter paper fixing platform is fixedly arranged in the middle of the lifting plate, and the lifting driving device enables the filter paper fixed on the filter paper fixing platform to be tightly attached to the bottom surface of the soil-rock mixture test piece or enables the lifting plate to be placed on the analytical balance through the lifting plate;
the test electrode is electrically connected and fixed on the side wall of the test soil-rock mixture test piece and connected with a lead between the resistivity tester and the test electrode to hermetically penetrate through the sealing cover.
2. The cooperative test device for soil and water characteristics-resistivity of the soil-rock mixture according to claim 1, characterized in that: the lifter plate is a transverse rectangular plate, and the lifting driving device is four linear motors which are distributed and supported below four corners of the lifter plate.
3. The cooperative test device for soil and water characteristics-resistivity of the soil-rock mixture as claimed in claim 2, wherein: the lifting plate and the filter paper fixing table are both made of foam materials, the filter paper through holes are round holes, and the filter paper fixing table is a cylindrical table.
4. The cooperative test device for soil and water characteristics-resistivity of the soil-rock mixture as claimed in claim 2, wherein: the sample stage comprises a platform plate with a filter paper via hole in the middle and an upright post supported below the platform plate, and a pressure sensor for monitoring the pressure of the platform plate on the upright post is arranged between the upright post and the platform plate; the lifting plate is made of foam materials, and the filter paper fixing table is made of elastic sponge.
5. The cooperative test device for soil and water characteristics-resistivity of the soil-rock mixture as claimed in claim 4, wherein: the sealing cover is made of transparent PVC materials.
6. The cooperative test device for soil and water characteristics-resistivity of the soil-rock mixture according to claim 1, characterized in that: the side wall of the sealing cover is provided with a wire hole, and a sealing ring is arranged at the wire hole.
7. The cooperative test device for soil and water characteristics-resistivity of the soil-rock mixture according to claim 1, characterized in that: the filter paper fixing ring is used for wrapping and fixing the filter paper on the filter paper fixing table.
8. The cooperative test device for soil and water characteristics-resistivity of the soil-rock mixture according to claim 1, characterized in that: the testing electrode is four arc-shaped metal sheets which are attached to the side wall of the testing soil-rock mixture test piece in a conformal mode, and the testing electrode is fixed on the side wall of the testing soil-rock mixture test piece through an electrode fixing band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020261727.6U CN211697347U (en) | 2020-02-26 | 2020-02-26 | Cooperative testing device for soil-water characteristic-resistivity of soil-rock mixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020261727.6U CN211697347U (en) | 2020-02-26 | 2020-02-26 | Cooperative testing device for soil-water characteristic-resistivity of soil-rock mixture |
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| CN211697347U true CN211697347U (en) | 2020-10-16 |
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| CN202020261727.6U Expired - Fee Related CN211697347U (en) | 2020-02-26 | 2020-02-26 | Cooperative testing device for soil-water characteristic-resistivity of soil-rock mixture |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111208033A (en) * | 2020-02-26 | 2020-05-29 | 重庆交通大学 | Cooperative testing device and method for soil-water characteristics-resistivity of soil-rock mixture |
-
2020
- 2020-02-26 CN CN202020261727.6U patent/CN211697347U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111208033A (en) * | 2020-02-26 | 2020-05-29 | 重庆交通大学 | Cooperative testing device and method for soil-water characteristics-resistivity of soil-rock mixture |
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