CN218035003U - Test device for simulating roadbed filler particle migration in rainfall process - Google Patents
Test device for simulating roadbed filler particle migration in rainfall process Download PDFInfo
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- CN218035003U CN218035003U CN202222314162.5U CN202222314162U CN218035003U CN 218035003 U CN218035003 U CN 218035003U CN 202222314162 U CN202222314162 U CN 202222314162U CN 218035003 U CN218035003 U CN 218035003U
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Abstract
The utility model relates to the technical field of chemical experiment equipment, in particular to a test device for simulating the migration of roadbed filler particles in the rainfall process, which comprises a top compacting mechanism, a storage frame, a material placing cylinder, a telescopic support frame and a test sieve, wherein the material placing cylinder is arranged below the top compacting mechanism, and the bottom of the material placing cylinder is connected with the storage frame; the object placing frame comprises a flange plate, a frame body and a base, the frame body is fixed at the top of the base through a support, the flange plate is fixed at the top of the frame body, and an opening for placing the telescopic support frame and the test sieve is formed in the side wall of the frame body; the material placing barrel comprises a barrel body and a pore plate, through holes are uniformly formed in the middle of the pore plate, the pore plate is arranged at the bottom of the barrel body, and the barrel body and the pore plate are fixedly connected with a flange plate through bolts and nuts; the utility model provides a test device simple structure, convenient to use can be used to simulate static effect and descend the rain and lead to coarse grained soil subgrade to subside and the granule migration, and the user field experiment of being convenient for detects, suitable further popularization and application.
Description
Technical Field
The utility model relates to a geotechnical engineering technical field, concretely relates to test device of simulation rainfall in-process roadbed filler particle migration.
Background
The geotechnical engineering is the science of solving engineering technical problems about rocks and soil in various engineering by applying engineering geology, soil mechanics and rock mechanics, and is generally called civil engineering by solving engineering problems about rocks and soil, including foundation and foundation, slope and underground engineering and the like, and various engineering in the ground, underground and water are called civil engineering, and parts related to rocks, soil, underground and water in the civil engineering are called geotechnical engineering and are branches of the civil engineering. According to the division of the engineering construction stage, the work content can be divided into geotechnical engineering investigation, geotechnical engineering design, geotechnical engineering treatment, geotechnical engineering monitoring and geotechnical engineering detection.
At present, although partial research is carried out on the particle migration rule in the field of geotechnical engineering, most of the research only considers the rainfall infiltration effect, static factors are rarely considered, the research is not in accordance with actual engineering, and particularly the stress property and the sedimentation problem of a coarse-grained soil roadbed after rainfall infiltration are almost impossible to detect on site, so that a device for simulating sedimentation and particle migration of the coarse-grained soil roadbed caused by rainfall under the static effect is urgently needed, and therefore, a test device for simulating the migration of roadbed filler particles in the rainfall process is provided.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a test device of road bed filler particle migration among rainfall simulation process.
In order to solve the technical problem, the utility model discloses a technical scheme be:
a test device for simulating roadbed filler particle migration in a rainfall process comprises a top compaction mechanism, a storage frame, a material placing cylinder, a telescopic support frame and a test screen, wherein the material placing cylinder is arranged below the top compaction mechanism, and the bottom of the material placing cylinder is connected with the storage frame;
the object placing frame comprises a flange plate, a frame body and a base, the frame body is fixed to the top of the base through a support, the flange plate is fixed to the top of the frame body, and an opening for placing the telescopic support frame and the test sieve is formed in the side wall of the frame body;
the material placing barrel comprises a barrel body and a pore plate, through holes are uniformly formed in the middle of the pore plate, the pore plate is arranged at the bottom of the barrel body, and the barrel body and the pore plate are fixedly connected with a flange plate through bolts and nuts;
the top compaction mechanism comprises a reaction frame, a hollow loading plate, a hollow pipe fitting, a spring loading plate, a pressure sensor, a jack, a water tank, a hose and a fixing plate, wherein the reaction frame is fixed on the ground, the hollow loading plate is placed on the top of a soil sample in the barrel, water drainage through holes are uniformly formed in the bottom of the hollow loading plate, the top of the hollow loading plate is communicated with the hollow pipe fitting, a branch pipe is arranged on the side wall of the hollow pipe fitting, the fixing plate is fixed on the top of the hollow pipe fitting, the spring loading plate is arranged on the top of the fixing plate, the jack is arranged on the top of the spring loading plate and located right below a cross beam of the reaction frame, the pressure sensor is arranged at the bottom of the jack, the water tank is installed on the top of the reaction frame, a water outlet pipe is arranged on the side wall of the water tank, a switch valve is arranged on the water outlet pipe, and the water outlet pipe is communicated with the hose.
Furthermore, the spring loading plate comprises a fixed bottom plate, a fixed rod, a movable top plate and a spring, the fixed rod is fixed at the top of the fixed bottom plate, the upper end of the fixed rod penetrates through the movable top plate and is in sliding fit with the movable top plate, the spring is arranged between the movable top plate and the fixed bottom plate, and the fixed rod is sleeved with the spring.
Furthermore, the height of the telescopic support frame is equal to the distance between the bottom of the inner cavity of the frame body and the bottom of the pore plate.
Furthermore, the telescopic support frame comprises a top plate, a bottom plate and a plug, a hollow tube is fixed at the bottom of the top plate, a plug rod is fixed at the bottom of the bottom plate and sleeved in the hollow tube, and the plug rod and the hollow tube are fixed through the plug.
Further, the test sieve includes column frame body and filter screen, evenly seted up the through-hole on the outer wall of column frame body, the filter screen sets up on the inner wall of column frame body.
The beneficial effects of the utility model reside in that:
the utility model provides a test device simple structure, convenient to use can be used to simulate static effect and descend the rain to lead to coarse grained soil roadbed to subside and the granule migration, and the user field experiment of being convenient for detects, suitable further popularization and application.
Drawings
FIG. 1 is a schematic structural view of the utility model in a soil sample loading state;
FIG. 2 is a schematic view of a spring loaded plate;
FIG. 3 is a schematic structural diagram of a hollow loading plate, a hollow pipe and a fixing plate;
FIG. 4 is a schematic view of a storage frame;
FIG. 5 is a schematic structural view of a charging barrel;
FIG. 6 is a top view of an orifice plate;
FIG. 7 is a schematic structural view of a test screen;
fig. 8 is a schematic structural view of the telescopic support frame.
The reference numbers in the figures are as follows:
a top compacting mechanism-1; a storage frame-2; a charging barrel-3 is arranged; a telescopic support frame-4; test sieve-5; soil sample-6; a reaction frame-101; a hollow load plate-102; hollow pipe fitting-103; a spring-loaded plate-104; a pressure sensor-105; jack-106; a water tank-107; a hose-108; a fixed plate-109; a flange plate-201; a frame-202; a drain-203; a base-204; a cylinder body-301; an orifice plate-302; a top plate-401; a backplane-402; plug-403; a column-shaped frame-501; a screen-502; a drain through-hole-1021; branch-1031; a fixed base plate-1041; a fixing rod-1042; a movable top plate-1043; a spring-1044.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are clearly and completely described below in combination with the technical solution of the embodiments of the present invention, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to the attached drawings 1 and 5, the test device for simulating the migration of roadbed filler particles in the rainfall process comprises a top compaction mechanism 1, an object placing frame 2, a material placing barrel 3, a telescopic support frame 4 and a test screen 5, wherein the material placing barrel 3 is arranged below the top compaction mechanism 1, and the bottom of the material placing barrel 3 is connected with the object placing frame 2.
Referring to fig. 2, the storage frame 2 includes a flange plate 201, a frame 202 and a base 204, the frame 202 is fixed on the top of the base 204 through a bracket, the flange plate 201 is fixed on the top of the frame 202, and an opening for placing the telescopic support frame 4 and the test sieve 5 is formed on the side wall of the frame 202; when the device is used, the telescopic support frame 4 and the test sieve 5 can be put in and taken out from the opening of the frame body 202, and the opening can also play a role in draining water.
As a further improvement, the placing frame 2 is also provided with a drain pipe 203, and the drain pipe 203 is positioned at the opposite side of the opening; the drain pipe 203 is provided to facilitate the drainage of water located on the side opposite the opening.
Referring to fig. 5-6, the material placing barrel 3 comprises a barrel body 301 and a pore plate 302, through holes are uniformly formed in the middle of the pore plate 302, the pore plate 302 is arranged at the bottom of the barrel body 301, and the barrel body 301 and the pore plate 302 are fixedly connected with the flange plate 201 through bolts and nuts; when the soil sample preparation device is used, the soil sample 6 is prepared according to the railway engineering geotechnical test regulation TB10102-2010, and the prepared soil sample 6 is filled into the cylinder body 301.
Referring to fig. 1-3, the top compacting mechanism 1 includes a reaction frame 101, a hollow loading plate 102, a hollow pipe 103, a spring loading plate 104, a pressure sensor 105, a jack 106, a water tank 107, a hose 108 and a fixing plate 109, the reaction frame 101 is fixed on the ground, the hollow loading plate 102 is placed on the top of the soil sample 6 inside the cylinder 301, the bottom of the hollow loading plate 102 is uniformly provided with drain through holes 1021, the top of the hollow loading plate 102 is communicated with the hollow pipe 103, a branch pipe 1031 is arranged on the side wall of the hollow pipe 103, the top of the hollow pipe 103 is fixed with the fixing plate 109, the top of the fixing plate 109 is provided with the spring loading plate 104, the top of the spring loading plate 104 is provided with the jack 106, the jack 106 is located right below the cross beam of the reaction frame 101, the bottom of the jack 106 is provided with the pressure sensor 105, and the pressure sensor 105 is fixed on the top of the spring loading plate 104 in this embodiment; the water tank 107 is installed at the top of the reaction frame 101, a water outlet pipe is arranged on the side wall of the water tank 107, a switch valve is arranged on the water outlet pipe, and the water outlet pipe is communicated with the water tank 1301 through hoses 108.
When the device is used, after filling of the soil sample 6 is completed, the hollow loading plate 102 is attached to the surface of the soil sample 6, the levelness and verticality of a loading system are adjusted, the spring loading plate 104 is placed on the top surface of the fixing plate 109, the compression process is carried out on the spring loading plate 104 below through the jack 106 matched with the reaction frame 101, real-time monitoring can be carried out through the arranged force sensor 105 in the process, the required load of the soil sample 6 is controlled according to the required compression degree, the soil sample 6 is loaded until the required compression degree is reached, and static load is applied to the soil sample 6 after the compression is completed, so that a subsequent rainfall simulation test is facilitated; the water tank 107 is communicated with the water pipe 108 and the hollow pipe fitting 103, the hollow loading plate 102 is attached to the soil sample 6, after the static load applying process of the soil sample 6 is completed, water is added into the water tank 107, a valve on a water outlet pipe of the water tank 107 is opened, a water source in the water tank 107 is conveyed into the hollow pipe fitting 103 through the water pipe 108, and water in the hollow pipe fitting 103 flows into the hollow loading plate 102 and flows out from drainage through holes 1021 uniformly distributed on the hollow loading plate 102, so that the uniform rainfall loading process is realized.
Referring to fig. 2, the spring loading plate 104 includes a fixed bottom plate 1041, a fixed rod 1042, a movable top plate 1043 and a spring 1044, the fixed rod 1042 is fixed on the top of the fixed bottom plate 1041, the upper end of the fixed rod 1042 penetrates through the movable top plate 1043 and is in sliding fit with the movable top plate 1043, the movable top plate 1043 can slide along the fixed rod 1042, the spring 1044 is disposed between the movable top plate 1043 and the fixed bottom plate 1041, and the spring 1044 is sleeved on the fixed rod 1042. When the spring-loaded plate 104 is pressed, the movable top plate 1043 moves downward along the fixing rod 1042 to press the spring 1044, and when the pressure is removed, the elastic force of the spring 1044 is released to drive the movable top plate 1043 to ascend and return.
Referring to fig. 1, the height of the telescopic support frame 4 is equal to the distance from the bottom of the inner cavity of the frame 202 to the bottom of the orifice plate 302; after the telescopic support frame 4 is placed in the storage frame 2, the upper end and the lower end of the telescopic support frame 4 can be just abutted to the bottom of the pore plate 302 and the inner cavity of the frame body 202, so that the telescopic support frame 4 can support the pore plate 302 in an abutting mode.
Referring to fig. 8, the telescopic supporting frame 4 includes a top plate 401, a bottom plate 402 and a plug 403, a hollow tube is fixed at the bottom of the top plate 401, a plug rod is fixed at the bottom of the bottom plate 402, the plug rod is sleeved in the hollow tube, and the plug rod and the hollow tube are fixed by the plug 403. When the telescopic support frame 4 needs to be placed into the storage frame 2 from the opening on the side wall of the storage frame 2, the plug 403 is pulled out, the plug rod is further inserted into the hollow pipe, the height of the telescopic support frame 4 is reduced, so that the telescopic support frame 4 can be placed into the storage frame from the opening, after the storage frame is placed, the top plate 401 is lifted, and the plug 403 is inserted into the storage frame to fix the heights of the top plate 401 and the bottom plate 402; this kind of setting is convenient for telescopic bracket 4 to put into from putting 2 lateral wall openings of thing frame.
Referring to fig. 7, the test sieve 5 includes a cylindrical frame 501 and a filter screen 502, through holes are uniformly formed in an outer wall of the cylindrical frame 501, and the filter screen 502 is disposed on an inner wall of the cylindrical frame 501. After the soil sample loading is accomplished, take out telescopic frame 4 to put into the thing frame 2 lateral wall opening with test sieve 5, test sieve 5 is used for accepting, filters water and the granule that flows out from orifice plate 302, and water is discharged from the 501 lateral wall through-holes of columnar frame body, and the granule is stayed in test sieve 5.
In conclusion, when the test device for simulating the migration of the road foundation filler particles in the rainfall process is used, before a test is performed, the cylinder body 301 is attached to the top end of the flange plate 201 through the pore plate 302, and then is connected and fixed through a plurality of groups of bolts and nuts, and then the telescopic support frame 4 is placed in the placing frame 2 to support the pore plate 302, and meanwhile, the telescopic support frame 4 can also block the through hole in the pore plate 302 to prevent the soil sample 6 from being discharged from the through hole in the pore plate 302 in the loading and extruding process (as shown in fig. 1); the method comprises the steps of preparing a soil sample 6 according to a railway engineering soil engineering test regulation TB10102-2010, filling the soil sample in a barrel 301 according to a required compaction degree, attaching a hollow loading plate 102 to the surface of the soil sample 302 after filling of the soil sample 6 is completed, adjusting levelness and verticality of a loading system, placing a spring loading plate 104 on the top surface of a fixing plate 109, then performing a compaction process on a lower spring loading plate 104 through a jack 106 and a reaction frame 101, monitoring in real time through a force sensor 105 arranged in the process, controlling the required load of the soil sample 6 according to the required compaction degree, loading the soil sample 6 until the required compaction degree is reached, and applying static load to the soil sample 6 after compaction is completed to facilitate a subsequent rainfall simulation test.
After the static load process of the soil sample 6 is completed, the telescopic support frame 4 is taken out of the storage frame 2, then the test sieve 5 is placed in the storage frame 2 (as shown in the attached drawing 5), water is added into the water tank 107, a valve on a water outlet pipe of the water tank 107 is opened, a water source in the water tank 107 is conveyed into the hollow pipe 103 through the water pipe 108, water in the hollow pipe column 103 flows into the hollow loading plate 102 and then is discharged into the soil sample 6 from the water discharge through hole 1021, the uniform rainfall loading process is realized, in the process, the test sieve 5 in the storage frame 2 recovers migration particles generated in the sedimentation process, the particle collection is convenient, after the rainfall is completed, the test sieve 5 is taken out, the telescopic support frame 4 is remounted into the storage frame 2, then the sedimentation data of the soil sample 302 is measured, and recorded, and the simulated observation process is completed.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (5)
1. The test device for simulating the migration of roadbed filler particles in the rainfall process is characterized by comprising a top compaction mechanism (1), an object placing frame (2), a material placing barrel (3), a telescopic support frame (4) and a test screen (5), wherein the material placing barrel (3) is arranged below the top compaction mechanism (1), and the bottom of the material placing barrel (3) is connected with the object placing frame (2);
the storage frame (2) comprises a flange plate (201), a frame body (202) and a base (204), the frame body (202) is fixed to the top of the base (204) through a support, the flange plate (201) is fixed to the top of the frame body (202), and an opening for placing the telescopic support frame (4) and the test sieve (5) is formed in the side wall of the frame body (202);
the charging barrel (3) comprises a barrel body (301) and a pore plate (302), through holes are uniformly formed in the middle of the pore plate (302), the pore plate (302) is arranged at the bottom of the barrel body (301), and the barrel body (301) and the pore plate (302) are fixedly connected with a flange plate (201) through bolts and nuts;
the top compaction mechanism (1) comprises a reaction frame (101), a hollow loading plate (102), a hollow pipe fitting (103), a spring loading plate (104), a pressure sensor (105), a jack (106), a water tank (107), a hose (108) and a fixing plate (109), the reaction frame (101) is fixed on the ground, the hollow loading plate (102) is placed at the top of the soil sample (6) in the cylinder body (301), the bottom of the hollow loading plate (102) is uniformly provided with drainage through holes (1021), the top of the hollow loading plate (102) is communicated with a hollow pipe fitting (103), a branch pipe (1031) is arranged on the side wall of the hollow pipe fitting (103), a fixing plate (109) is fixed on the top of the hollow pipe fitting (103), the top of the fixed plate (109) is provided with a spring-loaded plate (104), a jack (106) is arranged on the top of the spring-loaded plate (104), the jack (106) is positioned right below the cross beam of the reaction frame (101), and the bottom of the jack (106) is provided with a pressure sensor (105), the water tank (107) is installed at the top of the reaction frame (101), a water outlet pipe is arranged on the side wall of the water tank (107), a switch valve is arranged on the water outlet pipe, and the water outlet pipe is communicated with the water tank (1301) through a hose (108).
2. The device for simulating the migration of the roadbed filler particles in the rainfall process as claimed in claim 1, wherein the spring loading plate (104) comprises a fixed bottom plate (1041), a fixed rod (1042), a movable top plate (1043) and a spring (1044), the fixed rod (1042) is fixed at the top of the fixed bottom plate (1041), the upper end of the fixed rod (1042) penetrates through the movable top plate (1043) and is in sliding fit with the movable top plate (1043), the spring (1044) is arranged between the movable top plate (1043) and the fixed bottom plate (1041), and the spring (1044) is sleeved on the fixed rod (1042).
3. The device for simulating the migration of the roadbed filler particles in the rainfall process according to claim 1, wherein the height of the telescopic support frame (4) is equal to the distance between the bottom of the inner cavity of the frame body (202) and the bottom of the pore plate (302).
4. The device for simulating the migration of subgrade filler particles in the rainfall process according to claim 3, wherein the telescopic support frame (4) comprises a top plate (401), a bottom plate (402) and a plug (403), a hollow tube is fixed at the bottom of the top plate (401), a plug rod is fixed at the bottom of the bottom plate (402), the plug rod is sleeved in the hollow tube, and the plug rod and the hollow tube are fixed through the plug (403).
5. The test device for simulating the migration of subgrade filler particles in the rainfall process according to claim 1, wherein the test screen (5) comprises a cylindrical frame body (501) and a filter screen (502), through holes are uniformly formed in the outer wall of the cylindrical frame body (501), and the filter screen (502) is arranged on the inner wall of the cylindrical frame body (501).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222314162.5U CN218035003U (en) | 2022-08-31 | 2022-08-31 | Test device for simulating roadbed filler particle migration in rainfall process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222314162.5U CN218035003U (en) | 2022-08-31 | 2022-08-31 | Test device for simulating roadbed filler particle migration in rainfall process |
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| Publication Number | Publication Date |
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| CN218035003U true CN218035003U (en) | 2022-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222314162.5U Active CN218035003U (en) | 2022-08-31 | 2022-08-31 | Test device for simulating roadbed filler particle migration in rainfall process |
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| CN (1) | CN218035003U (en) |
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- 2022-08-31 CN CN202222314162.5U patent/CN218035003U/en active Active
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