CN214538847U - Seepage consolidation soil sample preparation device for fluid-plastic state soil - Google Patents
Seepage consolidation soil sample preparation device for fluid-plastic state soil Download PDFInfo
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- CN214538847U CN214538847U CN202120345543.2U CN202120345543U CN214538847U CN 214538847 U CN214538847 U CN 214538847U CN 202120345543 U CN202120345543 U CN 202120345543U CN 214538847 U CN214538847 U CN 214538847U
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Abstract
The utility model discloses a seepage consolidation soil sample preparation device for fluid-plastic state soil, which comprises a rigid base with seepage holes and a cylinder; the bottom of the cylinder is provided with a water seepage stone on the rigid base, the upper part of the cylinder is provided with a waterproof baffle which can move up and down in the cylinder, and a fluid-plastic soil sample is filled between the waterproof baffle and the water seepage stone; and a loading weight is arranged on the impervious baffle in the cylinder and is used for uniformly extruding and deforming the soil sample in the flow plastic state, and moisture is discharged in time through the water seepage holes of the rigid base in the process of compressing the soil sample in the flow plastic state. The utility model has simple structure, convenient operation, lower cost and good timeliness, can prepare soil samples with different sizes according to requirements, can perform consolidation drainage on the soil samples, and performs low-pressure consolidation test on soil to test consolidation parameters of the soil; and the prepared soil sample is ensured to be close to the actual environment of the undisturbed soil as much as possible, the influence of disturbance on the structure of the soil is reduced, and the physicochemical property and strength of the soil are more truly measured.
Description
Technical Field
The utility model relates to a soil sample preparation facilities's technical field especially relates to a seepage flow concreties soil sample preparation facilities of state soil is moulded to flow, is applicable to and subsides the flow under water and moulds state soil and prepare soil sample.
Background
With the development of economy, the demand for mineral products is greatly increased, the mining development scale is larger and larger, the quantity of generated tailings is increased, and in order to meet the increasing demand of the mineral products, the mineral separation scale is increased, so that the quantity of the generated tailings is also increased sharply, and a large amount of accumulated tailings cause a plurality of problems of environment, economy and safety. As the tailings and industrial waste residues are piled up higher and higher, a tailing pond becomes a high-potential artificial debris flow danger source, the danger of dam break exists, and the environmental problems that harmful components in the tailings are discharged, farmlands are damaged, riverways are silted up and the like can be caused, so that the research on the chemical and mechanical properties of the tailings is particularly important.
The tailings are complex porous media consisting of three phases of solid, liquid and gas, the states of the phases and the interaction of the phases have important influence on the physicochemical properties and the soil strength of the tailings, the tailings are filled and settled by water power after being discharged into a tailing pond, and the tailings are heightened year by year to form a tailing dam, but the settling time of each part in the tailings is greatly different, and the consolidation degree, the density and the stress field of each part are different.
The existing research on physicochemical properties and strength of tailings is to dry and then carry out various field soil body simulation conditions on a soil sample, the structure of the soil sample is possibly damaged due to disturbance in the process of preparing the soil sample and is not in line with the process of compacting soil body by gradually piling up a field tailing dam, and the soil sample is made into a cylindrical sample with a certain specification when an indoor triaxial test of soil is carried out, wherein the sample is usually 39.1mm multiplied by 80 mm; when performing indoor consolidation, infiltration experiment or direct shear experiment of soil, the soil sample is made to be 61.8mm × 40mm or 61.8mm × 20 mm. For the soil in the flow plastic state, after consolidation and dehydration, the volume of the soil sample is reduced, and the required height of the sample is difficult to achieve.
SUMMERY OF THE UTILITY MODEL
Based on the not enough that prior art exists, the utility model aims to solve the technical problem that a seepage flow concreties soil sample preparation facilities of state soil is moulded to flow is provided, simple structure, convenient operation are swift, can prepare not unidimensional soil sample as required, can concretize the drainage to soil sample to and can carry out the consolidation parameter of low pressure consolidation test, test soil to soil.
In order to achieve the purpose, the utility model adopts the following technical measures:
a seepage consolidation soil sample preparation device for soil in a flow plastic state comprises a rigid base with seepage holes and a cylinder placed on the rigid base; the bottom of the cylinder is provided with a water seepage stone on the rigid base, the upper part of the cylinder is provided with a waterproof baffle capable of moving up and down in the cylinder, and a fluid-plastic soil sample is filled between the waterproof baffle and the water seepage stone; and a loading weight is arranged on the impermeable baffle plate in the cylinder and is used for uniformly extruding and deforming the soil sample in the flow plastic state, and water is timely discharged through the water seepage holes of the rigid base in the process of compressing the soil sample in the flow plastic state.
Preferably, a layer of filter paper is arranged on the water seepage stone and is used for discharging water in the compression process of the soil sample in the plastic state and ensuring that the soil sample cannot run off; and the fluid-plastic state soil sample is placed between the impermeable baffle and the filter paper.
Furthermore, the lower end of the rigid base is provided with a hollow water storage space.
Preferably, a drain hose is connected to a bottom of a side surface of the water storage space.
Preferably, the inner diameter of the cylinder is 61.8mm or 39.1 mm.
The utility model discloses an increase the size of device of fetching earth, to the tailing, generally belong to fine grained soil, the plasticity index is big more, and its compressibility is also big, and the surpassing consolidation ratio is big more, and the deformation modulus is also big more usually, takes to carry out the compaction to soil sample at the weight of different weights to soil, and the rigidity or the deformation modulus of this in-process soil all can increase along with the increase of the weight of weight to reach the consolidation ratio of different requirements.
The utility model provides a convenient operation swift flows and moulds device that fetches earth of state soil, device simple structure can prepare not unidimensional soil sample as required. The device prepares the soil sample and accords with the environment that the actual scene tailings where the tailings are located are gradually compacted, reduces the influence of the process of drying the soil sample and then preparing remolded soil on the strength and the physicochemical property of the soil.
The utility model discloses a solved traditional soil under water can only take a sample and dry composition and the mechanical properties of research soil, through concreting the dehydration to soil and take out the actual conditions that soil sample more accords with the scene to thereby concretion drainage increase the size of preparing soil sample to soil through the size of design device.
Compared with the prior art, the utility model discloses a seepage flow consolidation soil sample preparation facilities of state soil is moulded to flow's beneficial effect and advantage lie in:
1. simple and convenient operation, simple structure and low cost.
2. The soil in the flow plastic state can reach the required sample size after volume compression.
3. Soil samples with different consolidation ratios are prepared by changing the weight of the weight.
4. The moisture of the fluid plastic state soil can be smoothly removed after the soil is compressed.
5. The density of the prepared soil sample is uniform, and the soil sample can be taken out through the dismounting device.
Drawings
Fig. 1 is a schematic structural view of the seepage consolidation soil sample preparation device for soil in a flow plastic state of the present invention.
Fig. 2 is a schematic structural diagram of each part of the seepage consolidation soil sample preparation device for the fluid-plastic state soil of the utility model.
Wherein, 1-load weight, 2-impervious baffle, 3-filter paper, 4-permeable stone, 5-rigid base with water seepage hole, 6-drainage hose, 7-cylinder.
Detailed Description
The seepage consolidation soil sample preparation device for soil in a fluid plastic state of the present invention will be described in detail with reference to fig. 1 to 2.
As shown in figure 1, the utility model provides a seepage flow consolidation soil sample preparation facilities of state soil is moulded to class, including the rigid base 5 in area infiltration hole, permeable stone 4, filter paper 3, the state soil sample is moulded to class, waterproof baffle 2, load heavy object (for example weight) 1, drum 7, drainage hose 6, the device deposit the size of soil sample great, be adapted to the great characteristics of the soil compressibility of class, the drum 7 size of depositing the soil sample can be 61.8mm 240mm, replaces pressure system with traditional load heavy object, puts the soil sample in the pressure chamber of drum 7, simple structure, convenient operation. The inner diameter of the cylinder 7 may be set to 39.1 mm.
The loading heavy object 1 can be adjusted as required, impervious baffle 2 and drum 7 are rigid, can not take place the deformation because of the atress, the state soil sample of flow moulding is placed between impervious baffle 2 and filter paper 3, only the state soil sample of flow moulding takes place to warp, 5 areas of rigid base permeate water infiltration holes, can let the state soil sample of flow moulding in by the pressure in-process, moisture in time discharges, 5 lower extremes of rigid base have the space of fretwork to deposit water, rigid base 5 connects drainage hose 6 in the side bottom, drainage hose 6 and 5 deposit water space intercommunication of rigid base lower extreme, then moisture can discharge through drainage hose 6.
Wherein, the loading weight 1, the impermeable baffle 2, the flow-plastic soil sample, the filter paper 3 and the permeable stone 4 are arranged inside the cylinder 7 from top to bottom in sequence.
The loading weight 1 acts on the impermeable baffle 2 to ensure that the flow-plastic soil sample is stressed uniformly in the process of being compressed, so that the density of the soil sample is uniform. Flow and mould state soil sample underpart pad one deck filter paper 3 for flow and mould state soil sample can discharge at the compression in-process normal water, and guarantee that soil sample can not run off, the lower extreme of filter paper 3 is permeable stone 4, is the rigid base 5 in area infiltration hole below the permeable stone 4, concreties the drainage when soil sample, through filter paper 3 through permeable stone 4, passes through the infiltration hole of lower part again, flows to rigid base 5 in, discharges water through drainage hose 6 at last.
Wherein, the permeable stone 4 has still played the effect of supporting the soil sample, guarantees that entire system only soil sample is compressed, the compression soil sample of preparing according to certain consolidation ratio.
The utility model discloses a load heavy object 1 realizes even compression to the soil sample indirectly to the baffle loading. The filter paper 3 and the permeable stone 4 are arranged at the lower end of the soil sample, moisture can be smoothly discharged in the process of consolidation and drainage of the soil sample, the rigid cylinder wall is large in size, and after compression is carried out, the prepared soil sample can still reach the sample size required by a triaxial test. The utility model discloses simple structure, convenient operation, required cost is lower, and is ageing good, guarantees that the soil sample of preparing is close to the actual environment that original state soil was located as far as possible, has reduced the influence of disturbance to the structure of soil for materialization nature and the intensity measurement to soil have more the authenticity.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can understand that the changes or substitutions obtained within the technical scope of the present invention should be covered within the scope of the present invention.
Claims (5)
1. A seepage consolidation soil sample preparation device for soil in a flow plastic state is characterized by comprising a rigid base with seepage holes and a cylinder placed on the rigid base;
the bottom of the cylinder is provided with a water seepage stone on the rigid base, the upper part of the cylinder is provided with a waterproof baffle capable of moving up and down in the cylinder, and a fluid-plastic soil sample is filled between the waterproof baffle and the water seepage stone;
and a loading weight is arranged on the impermeable baffle plate in the cylinder and is used for uniformly extruding and deforming the soil sample in the flow plastic state, and water is timely discharged through the water seepage holes of the rigid base in the process of compressing the soil sample in the flow plastic state.
2. The device for preparing the seepage consolidation soil sample of the fluid-plastic state soil according to claim 1, wherein a layer of filter paper is arranged on the water seepage stone and is used for discharging water in the compression process of the fluid-plastic state soil sample and ensuring that the soil sample cannot run off;
and the fluid-plastic state soil sample is placed between the impermeable baffle and the filter paper.
3. The apparatus for preparing a seepage consolidation soil sample of fluid-plastic state soil as claimed in claim 1, wherein the lower end of the rigid base has a hollow water storage space.
4. The apparatus for preparing a seepage consolidated soil sample of fluid plastic state soil as claimed in claim 3, wherein a drainage hose is connected to the bottom of the side of the water storage space.
5. The apparatus for preparing a seepage consolidation soil sample of fluid state soil of claim 1, wherein the inner diameter of the cylinder is 61.8mm or 39.1 mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120345543.2U CN214538847U (en) | 2021-02-05 | 2021-02-05 | Seepage consolidation soil sample preparation device for fluid-plastic state soil |
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| CN202120345543.2U CN214538847U (en) | 2021-02-05 | 2021-02-05 | Seepage consolidation soil sample preparation device for fluid-plastic state soil |
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| CN214538847U true CN214538847U (en) | 2021-10-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112729998A (en) * | 2021-02-05 | 2021-04-30 | 中国科学院武汉岩土力学研究所 | Seepage consolidation soil sample preparation device for fluid-plastic state soil |
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2021
- 2021-02-05 CN CN202120345543.2U patent/CN214538847U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112729998A (en) * | 2021-02-05 | 2021-04-30 | 中国科学院武汉岩土力学研究所 | Seepage consolidation soil sample preparation device for fluid-plastic state soil |
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