CN114993906A - Multidirectional seepage test device and test method - Google Patents
Multidirectional seepage test device and test method Download PDFInfo
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- CN114993906A CN114993906A CN202210453999.XA CN202210453999A CN114993906A CN 114993906 A CN114993906 A CN 114993906A CN 202210453999 A CN202210453999 A CN 202210453999A CN 114993906 A CN114993906 A CN 114993906A
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- 238000012360 testing method Methods 0.000 title claims abstract description 44
- 238000010998 test method Methods 0.000 title claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 92
- 239000000203 mixture Substances 0.000 claims description 22
- 239000011435 rock Substances 0.000 claims description 18
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 11
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 11
- 241001330002 Bambuseae Species 0.000 claims description 11
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 11
- 239000011425 bamboo Substances 0.000 claims description 11
- 230000008595 infiltration Effects 0.000 claims description 9
- 238000001764 infiltration Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 6
- 239000012466 permeate Substances 0.000 claims description 4
- 238000002474 experimental method Methods 0.000 claims description 3
- -1 cylinder Substances 0.000 claims 1
- 239000002689 soil Substances 0.000 abstract description 10
- 238000006243 chemical reaction Methods 0.000 abstract description 9
- 230000000149 penetrating effect Effects 0.000 abstract description 6
- 230000008859 change Effects 0.000 abstract description 5
- 239000012530 fluid Substances 0.000 abstract description 5
- 230000005484 gravity Effects 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 4
- 238000013508 migration Methods 0.000 description 4
- 230000005012 migration Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000004088 simulation Methods 0.000 description 4
- 239000004575 stone Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 239000010419 fine particle Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 239000008400 supply water Substances 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- 230000003204 osmotic effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000019771 cognition Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 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
- 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
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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
- G01N15/0826—Investigating permeability by forcing a fluid through a sample and measuring fluid flow rate, i.e. permeation rate or pressure change
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
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- General Health & Medical Sciences (AREA)
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- Engineering & Computer Science (AREA)
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Abstract
The invention relates to the field of seepage tests of rock-soil body mixed material unit models, in particular to a multidirectional seepage test device and a test method, which comprises a supporting component, a water supply component, a collection component and a seepage component, wherein a rotating supporting block of the seepage component can rotate relative to the supporting component, a sample loading cylinder is arranged on the rotating supporting block to rotate along with the rotating supporting block, a plugging plate is arranged at the top of the sample loading cylinder and encapsulates the top of the sample loading cylinder, a filter plate is provided with a plurality of through holes and is arranged at the bottom of the sample loading cylinder, penetrating fluid can leak out, the water supply component supplies water to the sample loading cylinder, a configured sample is placed into a sample cylinder when in use, an air compressor and an air cylinder are subjected to stress loading, frequency conversion is carried out, the rotating supporting block is rotated to carry out seepage tests respectively under different angles of the gravity direction and the seepage direction, and finally the collection component collects the penetrating fluid to be weighed to monitor the quality change of the sample, so that the test is more convenient.
Description
Technical Field
The invention relates to the field of seepage tests of rock-soil body mixed material unit models, in particular to a multi-directional seepage test device and a test method.
Background
The seepage of underground water greatly affects the stability of geotechnical engineering, and particularly in loose porous media of soil-rock mixtures, due to the physical actions of water flow such as undermining, abrasion, scouring and the like, the soil-rock mixtures are easy to disintegrate, argillization, fine particle migration and the like, and then the integral materials of the soil-rock mixtures are subjected to seepage damage, such as water inrush and mud inrush disasters in tunnel engineering, dam undermining disasters, landslide disasters caused by undermining interlayers and the like. The soil-rock mixture seepage test has important significance for the cognition of the disasters, the prediction and forecast of development change trends and the design of treatment engineering measures.
The unit model seepage test is an effective method for researching the seepage condition of rock and soil mass materials. Different from the seepage of the conventional rock-soil body, the formation of the seepage damage of the soil-rock mixture in the actual engineering is often influenced by the mass loss, different seepage directions, stress action, water pressure action and the like.
The osmotic damage of the soil-rock mixture is usually caused after the disintegration, argillization and fine particle migration of the soil-rock mixture structure, and the mass (particles or clay) of the soil-rock mixture is in a dynamic process of continuous loss;
in the process of groundwater seepage, under the influence of the position of water outlet, seepage of rock-soil mass exists in various directions, in the water inrush and mud inrush disaster of tunnel engineering, the possibility of water inrush and mud inrush exists at any position of an unsupported area of a tunnel face, the seepage direction in a surrounding rock or dam foundation soil-rock mixture undergoes multiple directional deflection, and the seepage direction exists in various directions;
in geotechnical engineering, the damage process of infiltration is the structural system damage caused by infiltration and stress action engineering, and the effect of infiltration damage is different under the influence of different stresses and water pressure.
The existing earth-rock mixture seepage device does not comprehensively consider the aspects 3 to carry out unit model seepage, and the actual situation on site is difficult to reflect.
Disclosure of Invention
The invention aims to provide a multidirectional seepage test device and a test method, and aims to realize migration simulation of fine particles, simulation of different angles of a seepage direction and a gravity direction, simulation of different stress states and simulation of other different initial sample heights and porosities in a rock-soil body seepage process.
In order to achieve the above object, in a first aspect, the present invention provides a multi-directional seepage testing apparatus, comprising a support assembly, a water supply assembly, a collection assembly and a seepage assembly, the infiltration component comprises a sample loading cylinder, an air compressor, a plugging plate, a rotary supporting block, a thrust plate and a filter plate, the rotary supporting block is rotationally arranged on the supporting component, the sample loading cylinder is arranged on the rotary supporting block, the plugging plate is arranged at the top of the sample loading cylinder, the filter plate is provided with a plurality of through holes and is arranged at the bottom of the sample loading cylinder, the thrust plate is arranged in the sample loading cylinder in a sliding manner, the air cylinder is arranged on one side of the plugging plate, the telescopic rod of the air cylinder is fixedly connected with the thrust plate, the air compressor is connected with the air cylinder, the water supply assembly is communicated with the sample loading cylinder, and the collection assembly is arranged at the bottom of the filter plate.
The rotary supporting block comprises a supporting block body and a locking block, a plurality of locking holes are uniformly distributed in the locking block, and the locking block is fixedly connected with the supporting block body and close to the supporting component.
The supporting block body is rotatably connected with the support, the locking block is provided with a plurality of matching holes, the locking block is fixedly connected with the support and close to the locking block, and the bolt is arranged on one side of the matching holes in a sliding mode.
The bolt comprises a bolt body, a support sleeve, a support spring and a handle, wherein the support sleeve is rotatably connected with the support and is positioned on one side of the matching hole, the bolt body is slidably connected with the support sleeve and is positioned in the support sleeve, the support spring is arranged between the bolt body and the support sleeve, and the handle is fixedly connected with the bolt body and penetrates through the support sleeve.
The permeation assembly further comprises a water pressure meter, and the water pressure meter is arranged on one side of the sample loading cylinder.
Wherein, the infiltration subassembly still includes pressure sensor, pressure sensor sets up one side of shutoff board.
Wherein, the water supply subassembly includes water gauge, stop valve, frequency conversion constant voltage booster pump and water tank, the water gauge with dress appearance section of thick bamboo intercommunication, the stop valve with the water gauge intercommunication, frequency conversion constant voltage booster pump with the stop valve intercommunication, the water tank with frequency conversion constant voltage booster pump intercommunication.
Wherein, the collection subassembly includes filter screen, cask and electronic scale, the cask sets up dress appearance bobbin base portion, the filter screen sets up cask top, the electronic scale sets up filter screen bottom.
In a second aspect, the present invention further provides a testing method for a multi-directional seepage testing apparatus, comprising: preparing a soil-rock mixture; adding the mixture into a sample loading cylinder layer by layer and tamping; connecting water supply equipment to saturate the sample; starting an air compressor and an air cylinder for stress loading; adjusting the inclination angle of the sample loading cylinder to perform a seepage experiment; permeate was collected by the collection module and sample quality changes were monitored.
According to the multidirectional seepage test device and the test method, the rotating support block can rotate relative to the support assembly, the sample loading cylinder is arranged on the rotating support block to rotate along with the rotating support block, the plugging plate is arranged at the top of the sample loading cylinder and encapsulates the top of the sample loading cylinder, the filter plate is provided with a plurality of through holes, the filter plate is arranged at the bottom of the sample loading cylinder and can leak penetrating fluid, the water supply assembly supplies water into the sample loading cylinder, a configured sample is placed into the sample loading cylinder when the multidirectional seepage test device is used, an air compressor and an air cylinder are used for stress loading, the rotating support block is rotated after frequency conversion, seepage test is respectively carried out under different angles of the gravity direction and the seepage direction, and finally the collecting assembly collects the penetrating fluid for weighing, so that the test is more convenient.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a multi-directional seepage test apparatus according to the present invention.
Fig. 2 is a side view of the support module and the permeation module of the present invention.
Fig. 3 is a front structural view of the support module and the infiltration module of the present invention.
Fig. 4 is a schematic cross-sectional view of a support module and an osmotic module of the present invention.
FIG. 5 is a flow chart of a test method of the multi-directional seepage test apparatus of the present invention.
1-supporting component, 2-water supply component, 3-collecting component, 4-penetrating component, 21-water meter, 22-water stop valve, 23-variable frequency constant pressure booster pump, 24-water tank, 31-filter screen, 32-water bucket, 33-electronic scale, 41-sample loading cylinder, 42-air cylinder, 43-air compressor, 44-blocking plate, 45-rotary supporting block, 46-thrust plate, 47-filter plate, 48-water pressure gauge, 49-pressure sensor, 112-supporting block body, 113-locking block, 114-locking hole, 115-bracket, 116-locking block, 117-bolt, 118-matching hole, 119-bolt body, 120-supporting sleeve, 121-supporting spring and 122-handle.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
Referring to fig. 1 to 4, in a first aspect, the present invention provides a multi-directional seepage testing apparatus:
comprises a supporting component 1, a water supply component 2, a collecting component 3 and a permeation component 4, wherein the permeation component 4 comprises a sample cylinder 41, an air cylinder 42, an air compressor 43, a plugging plate 44, a rotary supporting block 45, a thrust plate 46 and a filter plate 47, the rotary supporting block 45 is rotatably arranged on the supporting component 1, the sample loading cylinder 41 is arranged on the rotary supporting block 45, the blocking plate 44 is disposed on the top of the loading cylinder 41, the filter plate 47 has a plurality of through holes, the filter plate 47 is arranged at the bottom of the sample loading cylinder 41, the thrust plate 46 is arranged in the sample loading cylinder 41 in a sliding way, the air cylinder 42 is arranged at one side of the blocking plate 44, the telescopic rod of the air cylinder 42 is fixedly connected with the thrust plate 46, the air compressor 43 is connected with the air cylinder 42, the water supply assembly 2 is communicated with the sample loading cylinder 41, and the collection assembly 3 is arranged at the bottom of the filter plate 47.
In this embodiment, dress appearance section of thick bamboo 41 selects transparent ya keli material to carry out the processing of dress appearance section of thick bamboo 41 seepage device according to the experimental requirement of soil-rock mixture seepage, wholly is the drum, and thickness is 10mm, and the diameter is 100mm, highly is 400mm, and the sample height can be formulated according to experimental requirement, exists the headspace in the drum height to stabilize rivers, wherein air compressor 43 with cylinder 42 adopts industrial-grade air compressor 43 and high thrust cylinder 42 combination mode to carry out the unipolar loading, and industrial-grade air compressor 43 adopts pressure regulating valve to be connected with high thrust cylinder 42, and the size of atmospheric pressure that can give of arbitrary control adjusts experimental requirement. The maximum thrust of the high-thrust air cylinder 42 is determined by the type of the air cylinder 42, and the size of the high-thrust air cylinder 42 can be selected according to test requirements. The single-shaft loading mode of the industrial-grade air compressor 43 and the high-thrust air cylinder 42 can ensure the required stable shaft pressure. In addition, according to the test requirement, the oil cylinder pressurization or other pressurization equipment can be replaced, and the upper limit of the pressurization of the test is increased. When the test device is used, a prepared sample is placed in a sample cylinder, the air compressor 43 and the air cylinder 42 are used for stress loading, the rotating support block 45 is rotated after frequency conversion, seepage test is respectively carried out under different angles of the gravity direction and the seepage direction, finally the collection assembly 3 collects penetrating fluid for weighing, and the mass change of the sample is monitored, so that the test is more convenient.
Further, the rotating support block 45 includes a support block body 112 and a locking block 113, a plurality of locking holes 114 are uniformly distributed on the locking block 113, and the locking block 113 is fixedly connected with the support block body 112 and is close to the support assembly 1.
In this embodiment, a protrusion may be disposed on the supporting member 1 through the locking hole 114 of the locking block 113, so that the protrusion may be engaged with the locking hole 114, or a rod may be inserted into the locking hole 114 to control the inclination angle of the supporting block body 112, so that the use is more convenient.
Further, the supporting assembly 1 includes a bracket 115, a locking block 116 and a bolt 117, the supporting block body 112 is rotatably connected to the bracket 115, the locking block 116 has a plurality of matching holes 118, the locking block 116 is fixedly connected to the bracket 115 and is close to the locking block 113, and the bolt 117 is slidably disposed at one side of the matching holes 118.
In this embodiment, the supporting block body 112 is supported by the bracket 115, the matching hole 118 on the locking block 116 is used for matching with the locking hole 114 of the locking block 113 to position the supporting block body 112, specifically, the loading cylinder 41 is rotated to a preset angle, so that the locking hole 114 can match with the matching hole 118 on the locking block 116, and then the bolt 117 is slid through the two holes to position, so that the operation is more convenient.
Further, the latch 117 includes a latch body 119, a support sleeve 120, a support spring 121 and a handle 122, the support sleeve 120 is rotatably connected to the bracket 115 and is located at one side of the fitting hole 118, the latch body 119 is slidably connected to the support sleeve 120 and is located in the support sleeve 120, the support spring 121 is disposed between the latch body 119 and the support sleeve 120, and the handle 122 is fixedly connected to the latch body 119 and penetrates through the support sleeve 120.
In this embodiment, in order to insert the latch body 119 more conveniently, after the locking block 113 is adjusted to a proper position, the supporting sleeve 120 may be rotated to align with the matching hole 118, then the latch body 119 may be pushed into the matching hole 118 and the locking hole 114 to be locked under the elastic force of the supporting spring 121, then when the position of the locking block 113 needs to be changed, the latch body 119 may be pulled out by the handle 122, and then the locking block 113 may be rotated, so that the operation is more convenient.
Further, the permeation module 4 further comprises a water pressure gauge 48, and the water pressure gauge 48 is disposed at one side of the sample containing cylinder 41.
In this embodiment, water pressure sensors 49 are connected to the side walls of the cylinder at regular intervals, so that the water pressure at the inlet, the inside of the sample, and the outlet can be measured in real time, and the use is more convenient.
Further, the pressure sensor 49 is provided on one side of the blocking plate 44.
In this embodiment, the pressure sensor 49 is an S-shaped pressure sensor 49, which can be connected to the cylinder 42 to measure a specific value of a given axial pressure in real time, and then the S-shaped pressure sensor 49 is connected to a loading plate having holes, which are arranged in a quincunx shape and have a diameter of 10 mm.
Further, water supply subassembly 2 includes water gauge 21, stagnant water valve 22, frequency conversion constant voltage booster pump 23 and water tank 24, water gauge 21 with dress appearance section of thick bamboo 41 intercommunication, stagnant water valve 22 with water gauge 21 intercommunication, frequency conversion constant voltage booster pump 23 with stagnant water valve 22 intercommunication, water tank 24 with frequency conversion constant voltage booster pump 23 intercommunication.
In the present embodiment, the water tank 24 is a constant water supply water tank 24, tap water supply, a full-automatic float valve water level switch, and a large water tank 24 with a diameter of more than 1m are used for water pipe connection, the full-automatic float valve water level switch can automatically supply the water level of the water supply water tank 24 to ensure that the water level of the water supply water tank 24 is constant, the variable-frequency constant-pressure booster pump 23 is a high-power variable-frequency constant-pressure water-absorbing booster pump, and a conventional constant-pressure water-absorbing booster pump can reach a water pressure of 0.42 MPa; the water outlet of the constant pressure water absorption booster pump is connected with the water inlet of the sample loading cylinder 41 penetrating device in a mode of connecting a water pipe, a water stop valve 22, a water meter 21 and a shunt pipe, wherein the water stop valve 22 can be used for closing water supply, the water meter 21 can be used for recording water consumption in a test in real time, and the shunt pipe can be used for further finely adjusting the seepage pressure. In addition, according to the test requirement, other water pressure supercharging devices can be replaced, and the upper limit of the water pressure is increased.
Further, the collecting assembly 3 comprises a filter screen 31, a water bucket 32 and an electronic scale 33, the water bucket 32 is arranged at the bottom of the sample loading cylinder 41, the filter screen 31 is arranged at the top of the water bucket 32, and the electronic scale 33 is arranged at the bottom of the filter screen 31.
In this embodiment, the filter 31 may be replaced at certain time intervals by connecting a hose to the lower part of the filter and placing the hose into the filter 31 to collect particles in the permeate, the water tank 32 may be placed below the sample tank, the water tank 32 may be placed on a weighing device to convert the change in weight of the water into the flow rate of the sample containing cylinder 41, or the water tank 32 may be set to have a scale to calculate the change in volume of the water within a certain time to convert the flow rate of the sample containing cylinder 41, or other measuring devices to calculate the flow rate of the water. It should also be mentioned that the filter plate 47 can also be provided as a permeable stone, so that the test apparatus can also be converted into a permeation apparatus irrespective of particle migration; the maximum grain diameter of the mixture with the soil and the stone can be set to be light with different pore sizes.
In a second aspect, referring to fig. 5, the present invention further provides a multi-directional seepage testing method, including:
s101, preparing a soil-rock mixture;
and preparing different soil and stone mixtures according to the experimental requirements.
S102, adding the mixture into the sample loading cylinder 41 in a layered mode and tamping;
the samples are added into the sample containing cylinder 41 layer by layer, and a tamping hammer with the diameter of 50mm is configured to tamp the samples.
S103, connecting water supply equipment to saturate the sample;
s104, starting the air compressor 43 and the air cylinder 42 for stress loading;
s105, adjusting the inclination angle of the sample loading cylinder 41 to perform a seepage experiment;
s106 permeate is collected by collection module 3 and sample quality changes are monitored.
The invention can realize the penetration test of the soil-rock mixture in different penetration directions and is used for researching the seepage characteristics of the rock-soil mass with the penetration direction inconsistent with the gravity direction; the whole hydraulic pressure and stress loading technical scheme is simple in arrangement and operation and is suitable for seepage tests of various soil-rock mixtures; adopt 1.5m threaded rod to connect dress appearance section of thick bamboo 41 and stress loading device, can adjust the distance between dress appearance section of thick bamboo 41 and the stress loading device, can control the initial height and the porosity of soil stone mixture like this, realize the variety of test scheme.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (9)
1. A multi-directional seepage test device is characterized in that,
including supporting component, water supply subassembly, collection subassembly and infiltration subassembly, the infiltration subassembly is including dress appearance section of thick bamboo, cylinder, air compressor, shutoff board, rotatory supporting shoe, thrust plate and filter, rotatory supporting shoe rotates to set up on the supporting component, dress appearance section of thick bamboo sets up on the rotatory supporting shoe, the shutoff board sets up dress appearance section of thick bamboo top, the filter has a plurality of through-holes, the filter sets up dress appearance bobbin base portion, the thrust plate slides and sets up in the dress appearance section of thick bamboo, the cylinder sets up one side of rotatory supporting shoe, the telescopic link of cylinder with thrust plate fixed connection, air compressor with the cylinder is connected, the water supply subassembly with dress appearance section of thick bamboo intercommunication, the collection subassembly sets up the filter bottom.
2. The multi-directional seepage testing apparatus of claim 1,
the rotary supporting block comprises a supporting block body and a locking block, a plurality of locking holes are uniformly distributed in the locking block, and the locking block is fixedly connected with the supporting block body and close to the supporting component.
3. The multi-directional seepage testing apparatus of claim 2,
the supporting component comprises a support, a locking block and a bolt, the supporting block body is rotatably connected with the support, the locking block is provided with a plurality of matching holes, the locking block is fixedly connected with the support and close to the locking block, and the bolt is slidably arranged on one side of the matching holes.
4. A multi-directional seepage test apparatus as claimed in claim 3,
the bolt comprises a bolt body, a supporting sleeve, a supporting spring and a handle, wherein the supporting sleeve is rotatably connected with the support and is positioned on one side of the matching hole, the bolt body is slidably connected with the supporting sleeve and is positioned in the supporting sleeve, the supporting spring is arranged between the bolt body and the supporting sleeve, and the handle is fixedly connected with the bolt body and penetrates through the supporting sleeve.
5. The multi-directional seepage testing apparatus of claim 1,
the permeation assembly further comprises a water pressure gauge, and the water pressure gauge is arranged on one side of the sample loading cylinder.
6. The multi-directional seepage testing apparatus of claim 5,
the infiltration subassembly still includes pressure sensor, pressure sensor sets up one side of shutoff board.
7. The multi-directional seepage testing apparatus of claim 1,
the water supply assembly comprises a water meter, a water stop valve, a variable-frequency constant-pressure booster pump and a water tank, the water meter is communicated with the sample loading barrel, the water stop valve is communicated with the water meter, the variable-frequency constant-pressure booster pump is communicated with the water stop valve, and the water tank is communicated with the variable-frequency constant-pressure booster pump.
8. The multi-directional seepage testing apparatus of claim 1,
the collecting assembly comprises a filter screen, a bucket and an electronic scale, the bucket is arranged at the bottom of the sample loading barrel, the filter screen is arranged at the top of the bucket, and the electronic scale is arranged at the bottom of the filter screen.
9. A test method of a multi-directional seepage test apparatus applied to the multi-directional seepage test apparatus of any one of claims 1 to 8,
the method comprises the following steps: preparing a soil-rock mixture;
adding the mixture into a sample loading cylinder layer by layer and tamping;
connecting a water supply device to saturate the sample;
starting an air compressor and an air cylinder for stress loading;
adjusting the inclination angle of the sample loading cylinder to perform a seepage experiment;
permeate was collected by the collection module and sample quality changes were monitored.
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