CN115096791A - Indoor model test method and device for testing seepage-proofing and water-resisting performance of hydrophobic particles - Google Patents
Indoor model test method and device for testing seepage-proofing and water-resisting performance of hydrophobic particles Download PDFInfo
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- CN115096791A CN115096791A CN202210731614.1A CN202210731614A CN115096791A CN 115096791 A CN115096791 A CN 115096791A CN 202210731614 A CN202210731614 A CN 202210731614A CN 115096791 A CN115096791 A CN 115096791A
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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
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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
- G01N15/0806—Details, e.g. sample holders, mounting samples for testing
Abstract
The invention discloses an indoor model test method for testing the seepage-proofing and water-proofing performance of hydrophobic particles, which comprises the following steps: 1) providing two accommodating tanks, and placing the two accommodating tanks in the temperature control chamber; 2) carrying out sample loading and scaling on the two accommodating grooves and simulating an actual application prototype; embedding a temperature and moisture monitoring probe when the two accommodating tanks are used for loading samples, wherein the temperature and moisture monitoring probe is connected to a data acquisition unit or a PC (personal computer) end; 3) regulating and controlling the temperature of the temperature control chamber and the temperature of the bottom of the accommodating tank to ensure that the temperature difference is formed between the sample accommodating samples; 4) and converting the permeability change trend of the impermeable air sand layer in the prototype into the permeability trend of the impermeable air sand layer in the indoor model according to the sample humidity change data of the indoor model in the time change process, and evaluating. The method can simulate hydraulic activities such as capillary water rising, water migration and the like in engineering, and the test result can embody permeability coefficient indexes and can be used for evaluating the anti-seepage long-term effect of the anti-seepage air-permeable particle engineering.
Description
Technical Field
The invention relates to a performance test of an anti-seepage and air-permeable particle material, in particular to an indoor model test method and a test device for testing the anti-seepage and water-impermeable performance of hydrophobic particles.
Background
The anti-seepage air-permeable particles are prepared by using aggregate particles such as gold mine tailings, lead-zinc tailings, aeolian sand, desert sand and the like as main raw materials, have air permeability, have wide application prospects in the fields of modern agriculture, building, traffic, ecological protection, environmental management and the like, can effectively solve the problems of water resource shortage, soil environment deterioration and the like faced by human beings at present, and have the problem that the existing technology is difficult to evaluate the long-term anti-seepage effect of anti-seepage air-permeable particle engineering when the problems of engineering seepage, roadbed soil wet subsidence and secondary salinization are treated.
At present, a special testing device for the impermeable and air-permeable particles is adopted for the impermeable performance test of the impermeable and air-permeable particles, the device is pressurized by adding water, the impermeable and air-permeable performance test of the impermeable and hydrophobic impermeable and air-permeable particles is realized, but the testing process does not simulate the hydraulic activities such as capillary water rise, water migration and the like generated along with the processes of dry-wet, freeze-thaw cycle and the like in engineering, the testing result does not embody permeability coefficient indexes, the permeability evaluation in engineering impermeable can not be directly used, and the testing method can not verify the long-term impermeable effect.
In addition, the geotechnical permeameter in the geotechnical test is divided into a constant head permeameter and a variable head permeameter, the variable head permeameter is not suitable for particles without viscosity, and the inner wall surface of the sample container and the anti-seepage air-permeable particles can not form a water-proof film, so that the test error is increased. The constant head permeameter is suitable for the non-viscous granular material with water permeability and is not suitable for hydrophobic granules, so the impermeable and air permeable granules are not suitable for the permeability coefficient evaluation of the geotechnical permeameter.
Based on the above problems in the background art, those skilled in the art have proposed an indoor model test method and device for testing the anti-seepage and water-resisting properties of hydrophobic particles.
Disclosure of Invention
The invention aims to provide an indoor model test method and a test device for testing the seepage-proofing and water-proofing performances of hydrophobic particles, which are used for solving the problems that the existing seepage-proofing and air-proofing performance test methods of seepage-proofing and air-proofing particles do not simulate hydraulic activities such as capillary water rise, water migration and the like in engineering, the test results do not reflect permeability coefficient indexes and cannot be directly used for permeability evaluation in engineering seepage-proofing, the long-term seepage-proofing effect of seepage-proofing and air-proofing particle engineering is difficult to evaluate in the prior art, and the applicability of the existing civil permeameter is poor.
In order to achieve the purpose, the invention adopts the technical scheme that:
an indoor model test method for testing the seepage-proofing and water-proofing performance of hydrophobic particles comprises the following steps:
1) providing two accommodating tanks with bottom heating functions and heat insulation structures, and placing the two accommodating tanks in a temperature control chamber;
2) paving a permeable stone layer, a saturated-state loess layer, an impermeable air-permeable sand layer and an unsaturated-state loess layer in a holding tank layer from the bottom to the top; paving a permeable stone layer, a saturated state filled loess layer, a contrast material layer and an unsaturated state filled loess layer on the other accommodating groove layer by layer from the bottom to the top; when the two accommodating tanks are used for paving a saturated-state filled loess layer and an unsaturated-state filled loess layer, a plurality of temperature and moisture monitoring probes are embedded at intervals along the longitudinal direction, and the plurality of temperature and moisture monitoring probes are connected to a data acquisition unit or a PC end;
3) regulating and controlling the room temperature of the temperature control chamber and the bottom temperature of the two accommodating tanks to ensure that the temperature difference is synchronously generated between the lower surface of the saturated filling loess layer and the upper surface of the unsaturated filling loess layer in the two accommodating tanks;
4) and converting the permeability variation trend of the impermeable air-permeable sand layer in the prototype into the permeability trend of the impermeable air-permeable sand layer in the indoor model based on the humidity variation data of the saturated state filled loess layer and the unsaturated state filled loess layer of the indoor model in the time variation process, and evaluating.
Further, in the step 2), when the permeable stone layer, the saturated state filled loess layer, the impermeable permeable sand layer and the unsaturated state filled loess layer are laid, the laying thickness is scaled according to an actually applied prototype, the scaling is a space similarity ratio, after the space similarity ratio is determined, a time similarity ratio is determined according to a heat conduction similarity criterion, so that the indoor model and the prototype are connected in space and time.
Further, the spatial similarity ratio and the temporal similarity ratio satisfy:
wherein the content of the first and second substances,
refers to the similarity ratio at the time level,
the similarity ratio of the space layers is indicated;
in order to simulate the time for reality,
indoor simulation time;
for the length, width and height of the actual engineering on site,
the length, width and height of the indoor model.
Further, in the step 2), a convex frame-shaped structure is formed on the lower surface of the anti-seepage air-permeable sand layer and is attached to the inner wall of the accommodating groove.
Further, in the step 2), at least two groups of temperature and moisture monitoring probes are transversely arranged in the accommodating groove at intervals.
The invention also aims to provide a test device in the test method of the indoor model for testing the anti-seepage and water-resisting performance of the hydrophobic particles, which comprises the following steps:
the inner wall of the heat insulation groove is provided with a heat insulation layer;
the temperature adjusting plate is arranged on the bottom wall in the heat preservation groove;
and the heat insulation partition plate is arranged in the middle of the heat insulation groove and divides the heat insulation layer into two independent grooves, and the heat insulation partition plate is simultaneously in sealing connection with the opposite side walls of the heat insulation groove and the upper surface of the temperature adjusting plate.
Further, the temperature adjusting plate comprises a hollow heat conducting plate and a heat conducting water pipe arranged in the hollow heat conducting plate, the heat conducting water pipe is distributed in the hollow heat conducting plate in a snake shape, and one end of the heat conducting water pipe extends to the outer side of the heat preservation groove.
Further, a slow-release cooling layer is arranged on the upper surface of the hollow heat conducting plate.
Furthermore, the slow-release cooling layer comprises a quartz stone block paved on the upper surface of the hollow heat conducting plate, river sand filled in the quartz stone block and a waterproof diaphragm coated on the outer sides of the quartz stone block and the river sand.
The invention has the beneficial effects that:
1. the method simulates the actions of dry-wet and freeze-thaw cycling and the like in the soil filling engineering, replaces the traditional mode of measuring the anti-seepage performance of the hydrophobic particles by adding water and pressurizing by the hydraulic activities such as capillary water rising and water migration which are dominated by temperature gradient, and solves the problem that the anti-seepage long-term effect of the anti-seepage and air-permeable particle engineering is difficult to evaluate in the prior art;
2. the method establishes a spatial and temporal relationship between the indoor model and the prototype, and analogizes the permeability of the impermeable air-permeable sand layer in the prototype based on the humidity change data of the indoor model in the saturated state filled loess layer and the unsaturated state filled loess layer in the time change process, so that the method is stable, convenient and reliable, and is beneficial to accurately evaluating the long-term impermeable performance of the impermeable air-permeable sand layer;
3. according to the invention, the lower surface of the saturated filling loess layer and the upper surface of the unsaturated filling loess layer synchronously generate temperature difference by utilizing the matching of the accommodating tank and the temperature control chamber, so that the change process of dry-wet and freeze-thaw cycles can be simulated more conveniently.
Drawings
FIG. 1 is a diagram showing the evolution of the water barrier performance of the air permeation prevention particle water barrier in the invention after 10 years;
FIG. 2 is a schematic view of the structure of the test apparatus of the present invention;
FIG. 3 is a schematic top view of the testing apparatus of the present invention.
Wherein, 1, a heat preservation groove is arranged; 2-temperature adjusting plate; 3-heat preservation partition board; 4-heat preservation and insulation layer; 5-a hollow heat-conducting plate; 6-heat conducting water pipes; 7-slow release cooling layer.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings.
As shown in fig. 1 to 3, a method for testing an indoor model for testing the anti-seepage and water-resisting properties of hydrophobic particles comprises the following steps:
1) providing two accommodating grooves; the inner wall of the holding tank is provided with a heat-insulating structure layer, and the heat-insulating structure layer can be an aluminum silicate rock wool board or a polyurethane foaming board; one of the two receiving grooves was used for experimental use and the other was used for comparative use; the two accommodating tanks are placed in the temperature control chamber, the temperature change of the material layers at the port parts of the accommodating tanks is influenced by utilizing the temperature adjusting function of the temperature control chamber, and the heat insulation structure layers of the accommodating tanks are used for avoiding the influence of the temperature control chamber on the periphery and the bottom surface of the inner wall of the accommodating tanks; the holding tank has the bottom heating function, and the accessible electric heating board realizes heating, also can lead to the water circulation exothermic mode and realize the bottom heating, and other suitable modes also can be used.
2) Paving a permeable stone layer, a saturated state filled loess layer, an impermeable permeable sand layer and an unsaturated state filled loess layer from the bottom to the top layer by layer in one accommodating groove; paving a permeable stone layer, a saturated state filled loess layer, a contrast material layer and an unsaturated state filled loess layer on the other accommodating groove layer by layer from the bottom to the top; when the permeable stone layer, the saturated state filling loess layer, the impermeable permeable air sand layer and the unsaturated state filling loess layer are paved, the paving thickness is scaled according to the thickness of a material layer in a prototype in practical application, the scaling ratio is a space similarity ratio, and the length, the width and the height in the prototype in practical application are estimated according to the space similarity ratio by the length, the width and the height in the accommodating tank; after the space similarity ratio is determined, the time similarity ratio is determined according to a heat conduction similarity criterion, so that the indoor model and the prototype are connected in space and time. In order to avoid the problem that the contact part of the anti-seepage air-permeable particles and the inner wall surface of the device cannot form a water-resisting film, the lower surface of the anti-seepage air-permeable sand layer is provided with a convex frame structure and is attached to the inner wall of the containing groove, so that the longitudinal width of the anti-seepage air-permeable sand layer in contact with the wall surface can be increased. When the two accommodating tanks are used for paving a saturated-state filled loess layer and an unsaturated-state filled loess layer, a plurality of temperature and moisture monitoring probes are embedded at intervals along the longitudinal direction, the temperature and moisture monitoring probes are connected to a data acquisition unit or a PC end, and the data acquisition unit or the PC end is used for acquiring data and then carrying out comparative analysis; in order to promote the accuracy of the detection data, the temperature and moisture monitoring probes are transversely arranged in the accommodating grooves at intervals in at least two groups, and the numerical errors detected by the two groups of temperature and moisture monitoring probes in each accommodating groove are within 0.1 numerical difference range, so that the data are determined to be effective.
The spatial similarity ratio and the temporal similarity ratio satisfy:
wherein the content of the first and second substances,
refers to the ratio of similarity at the time level,
the similarity ratio of the space layers is indicated;
in order to simulate the time in practice,
indoor simulation time;
for the length, width and height of the actual engineering on site,
the length, width and height of the indoor model.
3) Regulating and controlling the room temperature of the temperature control chamber and the bottom temperature of the two accommodating tanks to ensure that the temperature difference is synchronously generated between the lower surface of the saturated filling loess layer and the upper surface of the unsaturated filling loess layer in the two accommodating tanks; the conditions of dry-wet and freeze-thaw cycle are maintained in the process of generating temperature difference between the lower surface of the saturated filling loess layer and the upper surface of the unsaturated filling loess layer.
4) And converting the permeability variation trend of the anti-seepage air-permeable sand layer in the prototype into the permeability trend of the permeability air-permeable sand layer in the indoor model according to the humidity variation data of the saturated-state filled loess layer and the unsaturated-state filled loess layer of the indoor model in the time variation process, and evaluating.
According to the scale of the indoor model test for testing the seepage-proofing and water-proofing performance of the hydrophobic particles for engineering, the space similarity ratio is determined to be 10: 1, the similarity ratio of space and time layers satisfies the similarity criterion of heat conduction
、
、
(wherein,
refers to the similarity ratio at the time level,
the spatial level similarity ratio;
in order to simulate the time in practice,
indoor simulation time;
for the length, width and height of the actual engineering on site,
length, width, and height of the indoor model), the time similarity ratio is 100: 1. The test parameters are detailed in table 1.
The form of the boundary conditions on the model box, namely the set temperature function of the temperature control chamber, is as follows:
wherein T refers to the temperature cycle period, T refers to the running time of the test (the unit is consistent with that of T), a, b and c are fitting parameters, and the specific values are obtained by fitting the annual average temperature of the actual engineering location.
The present invention will be described by taking as an example a simulation test of the water barrier performance of a water barrier in a laboratory after 10 years from the prevention of permeation of gas particles.
Firstly, placing the two holding tanks into a special temperature control chamber for sample loading, arranging permeable stones, a filling loess layer in a saturated state, an anti-seepage permeable sand layer and a non-saturated state (optimal water content) filling loess layer in one holding tank from bottom to top in sequence during sample loading, and embedding a temperature and moisture monitoring probe according to a specified depth during loess filling; set gradually permeable stone, saturated state's fill loess layer, contrast material layer, unsaturated state (best moisture content) fill loess layer from the bottom up in another holding tank, bury the temperature moisture monitoring probe according to the specified depth when filling loess. The permeable stone has certain rigidity, is convenient for ramming soil above, and the permeable stone is laid to a fixed thickness, and is steerable at 0~10 cm. The contrast material layer is made of loess in unsaturated state and non-optimal water content, and is laid with conventional loess, and the loess contrast material layer can be replaced by permeable stone; when comparing with other current products, the contrast material layer also can choose for use current product. The thickness of each layer of material laid when loading the sample is referred to table 2. After the appearance is finished, set for holding tank bottom heating temperature on attemperator, concrete temperature value is 8.05 ℃.
The temperature function set for the temperature control chamber is:
wherein t is given in minutes.
And starting the data acquisition systems of the two accommodating tanks and the temperature control system of the temperature control chamber, and running tests. The temperature difference exists between the lower surface of the filling loess layer in a saturated state and the upper surface of the filling loess layer in an optimal water content state, under the action of temperature gradient and matrix suction, water is driven to repeatedly migrate between two layers of loess along with the positive and negative alternate circulation of the temperature of the filling loess layer in the optimal water content state, and the water insulation effect of the hydrophobic sand is judged by the water content probe through detecting the change of the water content at a soil layer monitoring point.
After the test is finished, data are exported and analyzed to obtain the change rule of the average monthly average volume water content variation of 4 monitoring points at the upper part of the impervious sand layer and the contrast layer along with time, the result is shown in figure 1, the monthly average volume water content variation of the filling soil at the upper part of the impervious sand layer changes along with the temperature period, the monthly average volume water content variation of the filling soil at the upper part of the loess contrast layer gradually increases along with the time and finally approaches to the saturation state, and the test result verifies the water-resisting performance of the hydrophobic particle water-resisting layer after being used for 10 years; the evaluation results show that the waterproof effect can be ensured by applying the impermeable air sand layer in the prototype for 10 years.
As shown in fig. 2 and 3, the invention also provides a testing device in the indoor model testing method for testing the anti-seepage and water-resisting performance of the hydrophobic particles. The device comprises a heat preservation groove 1, a temperature regulation plate 2 and a heat preservation clapboard 3; the heat preservation groove 1 provides a containing space for containing sample materials and realizes a heat preservation function, and the temperature adjusting plate 2 is used for realizing a heating function at the bottom of the heat preservation groove 1; the heat-insulating partition plate 3 is used for dividing the heat-insulating groove 1 into two independent accommodating spaces.
The inner wall of the heat preservation tank 1 is provided with a heat preservation and insulation layer 4, the heat preservation and insulation layer 4 is a polyurethane foaming layer or an aluminum silicate rock wool board coated with a plastic protection film, and the heat preservation and insulation layer 4 enables the inner wall of the heat preservation tank 1 to form a heat preservation structure; the whole heat preservation tank 1 is cubic, the formed groove is cubic, and the heat preservation tank can be formed by welding steel plates or by building cement.
The temperature adjusting plate 2 is arranged on the bottom wall in the heat preservation groove 1, and the temperature adjusting plate 2 comprises a hollow heat conducting plate 5 and a heat conducting water pipe 6; the hollow heat conducting plate 5 consists of a rectangular frame and an iron plate coated on the outer side of the rectangular frame; cavity heat-conducting plate 5 is laid in 1 bottom of heat-preserving groove, and heat conduction water pipe 6 is arranged in 5 inside and be snakelike arranging of cavity heat-conducting plate, and heat conduction water pipe 6 can choose for use PVC pipe or steel pipe, and 6 one end of heat conduction water pipe extend to the 1 outside in heat-preserving groove to connect cold and hot water machine, utilize the cold and hot water circulation to realize the temperature regulation and control.
The heat insulation partition plate 3 is arranged in the middle of the heat insulation groove 1 and divides the heat insulation layer into two independent grooves, and the heat insulation partition plate 3 is simultaneously connected with the opposite side walls of the heat insulation groove 1 and the upper surface of the temperature adjusting plate 2 in a sealing manner; the heat-insulating partition board 3 can be a polyurethane foaming board or an aluminum silicate rock wool board coated with a plastic protective film.
The temperature stability of the temperature adjusting plate 2 is beneficial to ensuring the accuracy and reliability of the test, in order to avoid the temperature of the temperature adjusting plate 2 from generating excessive temperature difference change, the upper surface of the hollow heat conducting plate 5 is provided with a slow-release temperature-reducing layer 7, the slow-release temperature-reducing layer 7 comprises quartz stones paved on the upper surface of the hollow heat conducting plate 5, river sand filled in the quartz stones and a waterproof diaphragm coated outside the quartz stones and the river sand, and the waterproof diaphragm can be a waterproof plastic film; in order to avoid the influence of the water circulation fault on the test of the heat conducting water pipe 6, a silicon rubber heating sheet can be paved on the lower side or inside of the slow-release cooling layer 7, and the temperature setting is maintained through the silicon rubber heating sheet after the temperature adjusting plate 2 has the fault; the quartz stone blocks and the river sand form a protective layer capable of slowly heating and slowly cooling, so that the influence of temperature abnormity of the temperature adjusting plate 2 on the test can be weakened.
When the device is applied to an indoor model test method for testing the seepage and water resisting performance of hydrophobic particles for engineering: the device is arranged in a temperature control chamber, and a cold and hot water machine outside the temperature control chamber is connected with a heat conduction water pipe 6 through a heat insulation pipeline. Arranging permeable stones, a saturated filling loess layer, an anti-seepage air-permeable sand layer and an unsaturated filling loess layer in sequence from bottom to top in a groove of the heat preservation tank 1, and embedding a temperature and moisture monitoring probe according to a specified depth when filling loess; another recess from the bottom up sets gradually permeable stone, saturated state's fill loess layer, contrast material layer, unsaturated state (best moisture content) fill loess layer, buries the temperature moisture monitoring probe according to the regulation degree of depth when filling loess underground. And starting a control system of the temperature control room, a control system of the cold and hot water machine and a data collector or a PC (personal computer) end, controlling the temperature of the inner chamber of the temperature control room and the temperature of the temperature adjusting plate 2 according to the test requirements, carrying out real-time data collection by using the temperature and moisture monitoring probe, and carrying out analysis and evaluation after collecting data.
Claims (9)
1. An indoor model test method for testing the seepage-proofing and water-proofing performance of hydrophobic particles is characterized by comprising the following steps:
1) providing two accommodating tanks with bottom heating functions and heat insulation structures, and placing the two accommodating tanks in a temperature control chamber;
2) paving a permeable stone layer, a saturated state filled loess layer, an impermeable permeable sand layer and an unsaturated state filled loess layer from the bottom to the top layer by layer in one accommodating groove; paving a permeable stone layer, a saturated state filled loess layer, a contrast material layer and an unsaturated state filled loess layer on the other accommodating groove layer by layer from the bottom to the top; when the two accommodating tanks are used for paving a saturated-state filled loess layer and an unsaturated-state filled loess layer, a plurality of temperature and moisture monitoring probes are embedded at intervals along the longitudinal direction, and the plurality of temperature and moisture monitoring probes are connected to a data acquisition unit or a PC end;
3) regulating and controlling the room temperature of the temperature control chamber and the bottom temperature of the two accommodating tanks to ensure that the temperature difference is synchronously generated between the lower surface of the saturated filling loess layer and the upper surface of the unsaturated filling loess layer in the two accommodating tanks;
4) and converting the permeability variation trend of the anti-seepage air-permeable sand layer in the prototype into the permeability trend of the permeability air-permeable sand layer in the indoor model according to the humidity variation data of the saturated-state filled loess layer and the unsaturated-state filled loess layer of the indoor model in the time variation process, and evaluating.
2. The method for testing the indoor model for testing the anti-seepage and water-resisting performances of the hydrophobic particles as claimed in claim 1, wherein in the step 2), when the permeable stone layer, the saturated filled loess layer, the anti-seepage permeable sand layer and the unsaturated filled loess layer are laid, the laying thickness is scaled according to a prototype in practical application, the scaling is a space similarity ratio, and after the space similarity ratio is determined, the time similarity ratio is determined according to a heat conduction similarity criterion, so that the indoor model and the prototype are connected in space and time.
3. The hydrophobic particle impermeable and water-blocking performance test indoor model test method of claim 2, wherein the spatial similarity ratio and the temporal similarity ratio satisfy:
wherein, the first and the second end of the pipe are connected with each other,
refers to the similarity ratio at the time level,
the similarity ratio of the space layers is indicated;
in order to simulate the time for reality,
indoor simulation time;
for the length, width and height of the actual engineering on site,
the length, width and height of the indoor model.
4. The method for testing the indoor model for testing the anti-seepage and water-resisting performances of the hydrophobic particles as claimed in claim 1, wherein in the step 2), the lower surface of the anti-seepage and air-permeable sand layer is formed with a convex frame-shaped structure and is attached to the inner wall of the accommodating groove.
5. The testing method for the indoor model for testing the impermeability and water resistance of the hydrophobic particles of claim 1, wherein in the step 2), at least two sets of temperature and moisture monitoring probes are arranged in the accommodating tank at intervals in the transverse direction.
6. A test device applied to the indoor model test method for the seepage and water-resisting performance test of the engineering hydrophobic particles as claimed in claims 1 to 4 is characterized by comprising the following steps:
the inner wall of the heat insulation groove is provided with a heat insulation layer;
the temperature adjusting plate is arranged on the bottom wall in the heat preservation groove;
and the heat insulation partition plate is arranged in the middle of the heat insulation groove and divides the heat insulation layer into two independent grooves, and the heat insulation partition plate is simultaneously in sealing connection with the opposite side walls of the heat insulation groove and the upper surface of the temperature adjusting plate.
7. The hydrophobic particle anti-seepage and water-resisting performance test indoor model test device of claim 6, wherein the temperature adjusting plate comprises a hollow heat conducting plate and heat conducting water pipes arranged in the hollow heat conducting plate, the heat conducting water pipes are distributed in a snake shape in the hollow heat conducting plate, and one end of each heat conducting water pipe extends to the outer side of the heat preservation tank.
8. The hydrophobic particle impermeable and water-proof performance testing indoor model testing device as claimed in claim 7, wherein the upper surface of the hollow heat conducting plate is provided with a slow-release cooling layer.
9. The hydrophobic particle impermeable and water-proof performance testing indoor model test device as claimed in claim 8, wherein the slow-release cooling layer comprises a quartz stone block laid on the upper surface of the hollow heat conducting plate, river sand filled in the quartz stone block, and a waterproof membrane coated outside the quartz stone block and the river sand.
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| CN202210731614.1A CN115096791A (en) | 2022-06-26 | 2022-06-26 | Indoor model test method and device for testing seepage-proofing and water-resisting performance of hydrophobic particles |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116930042A (en) * | 2023-09-19 | 2023-10-24 | 常州建昊建筑鉴定检测有限公司 | Building waterproof material performance detection equipment and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116930042A (en) * | 2023-09-19 | 2023-10-24 | 常州建昊建筑鉴定检测有限公司 | Building waterproof material performance detection equipment and method |
| CN116930042B (en) * | 2023-09-19 | 2023-12-01 | 常州建昊建筑鉴定检测有限公司 | Building waterproof material performance detection equipment and method |
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