CN117554412A - Multifunctional test device for simulating freezing process of tunnel drainage system in cold region - Google Patents
Multifunctional test device for simulating freezing process of tunnel drainage system in cold region Download PDFInfo
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- CN117554412A CN117554412A CN202311436585.7A CN202311436585A CN117554412A CN 117554412 A CN117554412 A CN 117554412A CN 202311436585 A CN202311436585 A CN 202311436585A CN 117554412 A CN117554412 A CN 117554412A
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- 238000012360 testing method Methods 0.000 title claims abstract description 124
- 230000008014 freezing Effects 0.000 title claims abstract description 50
- 238000007710 freezing Methods 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 35
- 239000011435 rock Substances 0.000 claims abstract description 58
- 238000012545 processing Methods 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 36
- 238000009434 installation Methods 0.000 claims description 4
- 230000009746 freeze damage Effects 0.000 abstract description 4
- 238000011160 research Methods 0.000 abstract description 3
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 239000012466 permeate Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 239000003507 refrigerant Substances 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 239000006004 Quartz sand Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 229910052602 gypsum Inorganic materials 0.000 description 3
- 239000010440 gypsum Substances 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 230000003204 osmotic effect Effects 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/14—Investigating or analyzing materials by the use of thermal means by using distillation, extraction, sublimation, condensation, freezing, or crystallisation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
- G01N13/04—Investigating osmotic effects
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
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- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a multifunctional test device for simulating a freezing process of a tunnel drainage system in a cold region, which comprises: the inner space of the test box is a filling cavity for filling surrounding rock materials, and a seepage pipeline system is arranged on the wall of the filling cavity; the transparent tunnel scale test model is arranged in the filling cavity through a bracket, and a plurality of cameras for shooting images of the transparent drainage system on the transparent tunnel scale test model are annularly arranged on the inner wall of the transparent tunnel scale test model; the air outlet of the test environment fan is connected with an air pipe, and the tail end of the air pipe is led into a tunnel of the transparent tunnel scale test model; a plurality of temperature sensors and seepage sensors arranged on the outer peripheral side of the scale model; and processing the terminal. The device can simulate the freezing process of the tunnel drainage system, and simulate the seepage working condition of tunnel surrounding rock and the working condition of surrounding rock temperature field, so that the test device has multifunction, and the convenience of tunnel freeze injury research is improved.
Description
Technical Field
The invention relates to the technical field of railway tunnel test devices, in particular to a multifunctional test device for simulating a freezing process of a tunnel drainage system in a cold region.
Background
In recent years, along with the increasing perfection of road networks, railway and highway infrastructures are extended to cold areas with severe weather conditions such as high latitude, high altitude and the like. Due to the reasons of design or construction, different degrees of freezing injury appear in many high-altitude and high-latitude cold region tunnels, and the phenomenon of freezing injury of the cold region tunnels is analyzed, so that the problem that the drainage system is frozen is one of the root causes of freezing of the cold region tunnels is solved, the problem of good drainage and freezing prevention of the tunnels is significant for guaranteeing safe operation of the cold region tunnels, and the basis for preventing and controlling the freezing of the drainage system is to manage the water flow freezing rule of drainage pipes of the cold region tunnels.
The system comprises an environment test box, a top water tank, a bottom water tank, a refrigerator and a data acquisition instrument, wherein the top water tank, the bottom water tank, the refrigerator and the data acquisition instrument are arranged in the environment test box. The top water tank is arranged on the lifting bracket and is connected with a hose; the outlet end I of the hose is connected with a drain pipe, and the outlet end II of the drain pipe extends into the bottom water tank; a water pump is arranged in the bottom water tank and is connected with the top water tank; the outer surface of the drain pipe is laid with a refrigerant conveying pipe, and the outer surface of the refrigerant conveying pipe is wrapped with a layer of heat-insulating cotton; two ends of the refrigerant conveying pipe are connected with a refrigerant outlet and an inlet of the refrigerator; a temperature sensor, a water flow velocity sensor and a high-definition camera are respectively arranged in the drain pipe; the data acquisition instrument is electrically connected with the temperature sensor, the water flow velocity sensor and the high-definition camera through data acquisition lines respectively. The system monitors the temperature and the water flow speed of each position of the drain pipe, and the icing position and the icing process in real time, so that the freezing rule of the drain pipe is obtained more comprehensively.
However, the actual tunnel drainage system comprises a ring at the back of the tunnel, a longitudinal drainage pipe and central drainage ditches and two side drainage ditches in the tunnel, and the test system is not attached to the actual structural arrangement form of the tunnel drainage system, so that the freezing rule of the ring, the longitudinal drainage pipe and the central drainage ditches and the two side drainage ditches in the tunnel cannot be truly simulated; in addition, because of cold district tunnel freeze injury also receives the influence of surrounding rock temperature, groundwater seepage flow, and foretell test system test function is single, and it can not simulate the seepage flow operating mode and the surrounding rock temperature field operating mode of tunnel surrounding rock, needs to carry on the experiment in surrounding rock seepage flow and surrounding rock temperature field in addition promptly, causes total test progress slowly, uses inconveniently.
Therefore, how to provide a multifunctional test device capable of simulating the freezing process of the tunnel drainage system and simulating the seepage working condition of the surrounding rock of the tunnel and the working condition of the surrounding rock temperature field so as to increase test versatility and improve test convenience is a problem to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, the invention provides a multifunctional test device which can simulate the freezing process of a tunnel drainage system, and can simulate the seepage working condition of tunnel surrounding rock and the working condition of surrounding rock temperature field, so as to increase test versatility and improve test convenience.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a multifunctional test device for simulating a freezing process of a tunnel drainage system in a cold region comprises:
the device comprises a test box, wherein the inner space of the test box is a filling cavity for filling surrounding rock materials, a mounting opening is formed in the front side box wall of the test box, a transparent observation door is arranged on the mounting opening, and a seepage pipeline system is arranged on the cavity wall of the filling cavity;
the transparent tunnel scale test model is installed inside the filling cavity through a support and is arranged corresponding to the position of the installation opening, and a plurality of cameras for shooting images of the transparent drainage system on the transparent tunnel scale test model are annularly arranged on the inner wall of the transparent tunnel scale test model;
the test environment fan is positioned at the rear side of the test box, an air outlet of the test environment fan is connected with an air pipe, and the tail end of the air pipe is led into a tunnel of the transparent tunnel scale test model;
the temperature sensors are radially arranged on the outer periphery side of the transparent tunnel scale test model;
the seepage sensors are radially arranged on the outer periphery of the transparent tunnel shrinkage test model;
the processing terminal is arranged on the outer side of the test box and is connected with the camera, the test environment fan, the temperature sensor and the seepage sensor.
Compared with the prior art, the invention discloses a multifunctional test device for simulating the freezing process of a tunnel drainage system in a cold region, when the multifunctional test device is used, a seepage pipeline system fills water flow into surrounding rocks, a test environment fan reduces the inside of a transparent tunnel scale test model to a test temperature, the transparent tunnel scale test model gradually reaches a freezing state, a camera shoots an image of the transparent drainage system on the transparent tunnel scale test model, a temperature sensor acquires surrounding rock temperature field data, a seepage sensor acquires surrounding rock seepage field data, a processing terminal carries out water and ice image identification processing on the shot image, ice and water cloud images inside the drainage system under different freezing time conditions are obtained, the key freezing position of the drainage system is obtained, and surrounding rock temperature field data and surrounding rock seepage field data are recorded. Therefore, the test device can simulate the freezing process of the tunnel drainage system, and can simulate the seepage working condition of tunnel surrounding rock and the working condition of surrounding rock temperature field, so that the test device has multifunction, and the convenience of tunnel freeze injury research is improved. And moreover, the tunnel scale test model and the drainage system are of full transparent structures, so that test staff can observe the freezing response process of the tunnel drainage system in a low-temperature environment in real time through the transparent observation window, the key freezing position of the tunnel drainage system in a cold region is obtained, and an effective test basis is provided for optimizing and improving the tunnel drainage system.
Further, the seepage pipeline system comprises an upper side horizontal seepage flower pipe, a lower side horizontal seepage flower pipe, a first left side vertical seepage flower pipe, a second left side vertical seepage flower pipe and a right side vertical seepage flower pipe which are respectively arranged on the upper side, lower side, left side and right side cavity walls of the filling cavity, the seepage hole section of the first left side vertical seepage flower pipe is lower than the seepage hole section of the second left side vertical seepage flower pipe, one end of the upper side horizontal seepage flower pipe is a water inlet end, the position, close to one end, of the upper side horizontal seepage flower pipe is communicated with one end of the right side vertical seepage flower pipe, a first switch valve is arranged at the left side position of the upper side horizontal seepage flower pipe, a second switch valve is arranged at the position, close to one end, of the right side vertical seepage flower pipe, one end of the lower side horizontal seepage flower pipe is a water outlet end, a third switch valve is arranged at the end, the position, close to one end, of the first switch valve is connected with the first switch valve, the first switch valve is arranged at the first switch valve, the first switch valve is connected with the fifth switch valve, and the fifth switch valve is arranged at the first switch valve.
The beneficial effects of adopting above-mentioned technical scheme to produce are: when the first switch valve is opened, the third switch valve is opened, the second switch valve is closed, the fourth switch valve is closed, and the fifth switch valve is closed, water enters the upper side horizontal seepage flow pipe, permeates downwards to surrounding rock through the seepage holes on the upper side horizontal seepage flow pipe, permeates into the lower side horizontal seepage flow pipe and is discharged through the third switch valve, and at the moment, the surrounding rock vertical seepage flow field working condition is simulated; when the first switch valve is closed, the third switch valve is closed, the fifth switch valve is closed, the second switch valve is opened, and the fourth switch valve is opened, a water source enters the right vertical seepage flow pipe and seeps leftwards to surrounding rock through a seepage hole on the water source, finally seeps into the first left vertical seepage flow pipe and is discharged through the fourth switch valve, and at the moment, the surrounding rock gradient seepage field working condition is simulated; when the first switch valve is closed, the third switch valve is closed, the fourth switch valve is closed, the second switch valve is opened, and the fifth switch valve is opened, water enters the right vertical seepage flow pipe, and flows leftwards to surrounding rock through the seepage holes on the right vertical seepage flow pipe, finally permeates into the second left vertical seepage flow pipe and is discharged through the fifth switch valve, and at the moment, the surrounding rock horizontal seepage flow field working condition is simulated. Therefore, the seepage pipeline system can simulate the working conditions of the surrounding rock vertical seepage field, the surrounding rock horizontal seepage field and the surrounding rock gradient seepage field respectively, and powerful multi-working condition seepage data are provided for researching the freezing of the surrounding rock.
Further, the camera is a high-resolution wireless camera and is in wireless connection with the processing terminal.
The beneficial effects of adopting above-mentioned technical scheme to produce are: the wireless camera is in wireless connection with the processing terminal, so that the problem of complicated cable arrangement of the test device caused by excessive cable arrangement is avoided.
Furthermore, the box coaming of the test box is a transparent plate.
The beneficial effects of adopting above-mentioned technical scheme to produce are: the freeze condition of the drainage system of the tunnel model is easy to observe by the testers on the seepage condition of surrounding rock in the test box.
Further, the test box and the test environment fan are fixed on the top end face of the base, and a plurality of movable wheels and a plurality of supporting foot cups with adjustable heights are arranged on the bottom end face of the base.
The beneficial effects of adopting above-mentioned technical scheme to produce are: the movable wheel is convenient for the test device to move, and the supporting foot cup is convenient for the test device to move in place and then can be stably supported on the ground.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic perspective view of a multifunctional test device for simulating a freezing process of a tunnel drainage system in a cold region.
Fig. 2 is a schematic side view structure of a multifunctional test device for simulating a freezing process of a tunnel drainage system in a cold region.
Fig. 3 is a schematic diagram of a front view cross-section structure of a multifunctional test device for simulating a freezing process of a tunnel drainage system in a cold region.
Fig. 4 is a schematic diagram of a simulated surrounding rock vertical seepage field.
Fig. 5 is a schematic diagram of a simulated surrounding rock horizontal seepage field.
Fig. 6 is a schematic diagram of a simulated surrounding rock gradient seepage field.
Fig. 7 is a schematic structural diagram of a transparent tunnel scale test model.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
1-7, the embodiment of the invention discloses a multifunctional test device for simulating a freezing process of a tunnel drainage system in a cold region, which comprises:
the invention relates to a test box 1, wherein the inner space of the test box 1 is a filling cavity 101 for filling (the soil body can be effectively reinforced, the stability of the soil body can be improved, meanwhile, the sedimentation of the filled soil can be reduced, the ground flatness after filling can be ensured, in addition, the compaction time of the filled soil can be reduced, the construction efficiency can be improved, and the construction cost can be reduced by a layered filling method), surrounding rock materials 2 (surrounding rock similar materials such as quartz sand and gypsum powder can be mixed according to the osmotic coefficient ratio of test working conditions to be used as the surrounding rock materials, if the osmotic coefficient of the actual working conditions is high, and if the osmotic coefficient of the actual working conditions is small, the proportion of the quartz sand to the gypsum powder is high, the proportion of the quartz sand to the gypsum powder is 1:2, the water can be ensured to enter a model drainage system more quickly), a mounting port is arranged on the front side wall of the test box 1, a transparent observation door 3 is arranged on the mounting port, and a seepage pipeline system 4 is arranged on the cavity wall of the filling cavity 101;
the transparent tunnel scale test model 5 is installed inside the filling cavity 101 through the support 6 and is arranged corresponding to the position of the installation opening, so that the model is conveniently installed into the test box through the installation opening, and a plurality of cameras 7 for shooting images of the transparent drainage system 51 on the transparent tunnel scale test model 5 are annularly arranged on the inner wall of the transparent tunnel scale test model 5 (the cameras can be glued on the inner wall of the tunnel model by adopting strong glue);
the test environment fan 8 (the test temperature which can be provided is-30 ℃ and the internal environment temperature of the tunnel model can be regulated and controlled by setting the test temperature, so that the simulation of the freeze-thawing cycle of the tunnel drainage system is realized), the test environment fan 8 is positioned at the rear side of the test box 1, an air outlet of the test environment fan 8 is connected with an air pipe 9, and the tail end of the air pipe 9 is led into the tunnel of the transparent tunnel scale test model 5;
the temperature sensors 10 (the model of the temperature sensor is TP100, the temperature measuring range is-50-250 degrees, the testing precision is 0.1 degree), and the temperature sensors 10 are arranged radially on the outer periphery of the transparent tunnel scale test model 5;
the seepage sensors 11, the seepage sensors 11 are a plurality of arranged radially on the outer circumference side of the transparent tunnel scale test model 5;
the processing terminal 12, processing terminal 12 sets up in the test chamber 1 outside, and processing terminal 12 all is connected with camera 7, experimental environment fan 8, temperature sensor 10, seepage flow sensor 11.
The seepage pipeline system 4 comprises an upper horizontal seepage flow pipe 41, a lower horizontal seepage flow pipe 42, a first left vertical seepage flow pipe 43, a second left vertical seepage flow pipe 44 and a right vertical seepage flow pipe 45 which are respectively arranged on the upper, lower, left and right cavity walls of the filling cavity 101, a seepage hole Duan Di of the first left vertical seepage flow pipe 43 is arranged on a seepage hole section of the second left vertical seepage flow pipe 44, one end of the upper horizontal seepage flow pipe 41 is a water inlet end 411, the position, close to one end, of the upper horizontal seepage flow pipe 41 is communicated with one end of the right vertical seepage flow pipe 45, a first switch valve 13 is arranged on the upper horizontal seepage flow pipe 41 at the left position of the right vertical seepage flow pipe 45, a second switch valve 14 is arranged on the right vertical seepage flow pipe 45 at the position close to one end of the right vertical seepage flow pipe, one end of the lower horizontal seepage flow pipe 43 is a water outlet end, a third switch valve 15 is arranged on the end, the first left horizontal seepage flow pipe 43 is a fifth switch valve 16, the first switch valve 16 is connected with the first switch valve 17, the fifth switch valve 17 is arranged on the end of the first switch valve 17, and the first switch valve 17 is connected with the first switch valve 17.
The camera 7 is a miniature high-resolution wireless camera and is connected with the processing terminal 12 wirelessly. The high-resolution wireless camera is mainly responsible for carrying out 24-hour real-time image acquisition on the underground water flowing state in the drainage system under the non-contact condition in the freezing test process of the tunnel drainage system in the cold region, and an image database in the freezing evolution process of the tunnel drainage system in the cold region is established. The processing terminal adopts image processing identification software to carry out water and ice image identification processing on the freezing evolution process image database, and ice and water distribution cloud images in the drainage system under different freezing time conditions are obtained; finally, the freezing evolution process and the initial freezing position of the tunnel drainage system are obtained.
The box coaming of the test box 1 is a transparent plate, such as an acrylic plate, so that transparent visual test operation is realized, and a tester can observe the surrounding rock seepage condition and the freezing process of a drainage system conveniently.
The invention relates to a multifunctional test device for simulating the freezing process of a tunnel drainage system in a cold region, which further comprises a base 18, wherein a test box 1 and a test environment fan 8 are both fixed on the top end surface of the base 18, and a plurality of movable wheels 19 and a plurality of supporting leg cups 20 with adjustable heights are arranged on the bottom end surface of the base 18.
When the system is used, the seepage pipeline system is used for filling water flow into surrounding rocks, the test environment fan is used for reducing the inside of the transparent tunnel scale test model to a test temperature, so that the transparent tunnel scale test model gradually reaches a frozen state, the camera is used for shooting images of the transparent drainage system on the transparent tunnel scale test model, the temperature sensor is used for collecting surrounding rock temperature field data, the seepage sensor is used for collecting surrounding rock seepage field data, then the processing terminal is used for carrying out water and ice image identification processing on the shot images, ice and water distribution cloud images in the drainage system under different freezing time conditions are obtained, key positions for freezing and freezing of the drainage system are obtained, and surrounding rock temperature field data (the surrounding rock internal temperature test is the basis for researching the tunnel freezing injury mechanism and is the most visual method for grasping the maximum freezing depth and the distribution rule of the surrounding rocks) and the surrounding rock seepage field data are recorded. Therefore, the test device can simulate the freezing process of the tunnel drainage system, and can simulate the seepage working condition of tunnel surrounding rock and the working condition of surrounding rock temperature field, so that the test device has multifunction, and the convenience of tunnel freeze injury research is improved. And, this tunnel scale test model and drainage system are all transparent structure (can see patent 2022235691753, the name is a tunnel scale test model that drainage system freezes process visualization, tunnel drainage system includes the ring behind the tunnel, vertical drain pipe and tunnel inside central authorities and both sides escape canal, consequently, this test device can laminate tunnel drainage system's actual structure layout form and carry out drainage system's freezing process test, can improve experimental accuracy), be convenient for the experimenter can observe tunnel drainage system's freezing response process under low temperature environment in real time through transparent observation window, obtain the key position that cold district tunnel drainage system freezes and freeze, optimize and improve for tunnel drainage system and provide effectual test basis.
When the first switch valve is opened, the third switch valve is opened, the second switch valve is closed, the fourth switch valve is closed, and the fifth switch valve is closed, water enters the upper side horizontal seepage flow pipe, permeates downwards to surrounding rock through the seepage holes on the upper side horizontal seepage flow pipe, permeates into the lower side horizontal seepage flow pipe and is discharged through the third switch valve, and at the moment, the surrounding rock vertical seepage flow field working condition is simulated; when the first switch valve is closed, the third switch valve is closed, the fifth switch valve is closed, the second switch valve is opened, and the fourth switch valve is opened, a water source enters the right vertical seepage flow pipe and seeps leftwards to surrounding rock through a seepage hole on the water source, finally seeps into the first left vertical seepage flow pipe and is discharged through the fourth switch valve, and at the moment, the surrounding rock gradient seepage field working condition is simulated; when the first switch valve is closed, the third switch valve is closed, the fourth switch valve is closed, the second switch valve is opened, and the fifth switch valve is opened, water enters the right vertical seepage flow pipe, and flows leftwards to surrounding rock through the seepage holes on the right vertical seepage flow pipe, finally permeates into the second left vertical seepage flow pipe and is discharged through the fifth switch valve, and at the moment, the surrounding rock horizontal seepage flow field working condition is simulated. Therefore, the seepage pipeline system can simulate the working conditions of the surrounding rock vertical seepage field, the surrounding rock horizontal seepage field and the surrounding rock gradient seepage field respectively, and powerful multi-working condition seepage data are provided for researching the freezing of the surrounding rock.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. A multifunctional test device for simulating a freezing process of a tunnel drainage system in a cold region is characterized by comprising:
the device comprises a test box (1), wherein the inner space of the test box (1) is a filling cavity (101) for filling surrounding rock materials (2), a mounting opening is formed in the front side box wall of the test box (1), a transparent observation door (3) is arranged on the mounting opening, and a seepage pipeline system (4) is arranged on the cavity wall of the filling cavity (101);
the transparent tunnel scale test model (5), the transparent tunnel scale test model (5) is installed inside the filling cavity (101) through a support (6) and is correspondingly arranged with the position of the installation opening, and a plurality of cameras (7) for shooting images of the transparent drainage system (51) on the transparent tunnel scale test model (5) are annularly arranged on the inner wall of the transparent tunnel scale test model (5);
the test environment fan (8), the test environment fan (8) is located at the rear side of the test box (1), an air outlet of the test environment fan (8) is connected with an air pipe (9), and the tail end of the air pipe (9) is led into a tunnel of the transparent tunnel scale test model (5);
the temperature sensors (10) are arranged radially on the outer periphery side of the transparent tunnel scale test model (5);
the seepage sensors (11) are arranged radially on the outer periphery side of the transparent tunnel scale test model (5);
the processing terminal (12), processing terminal (12) set up in the test chamber (1) outside, processing terminal (12) all with camera (7) experimental environment fan (8) temperature sensor (10) ooze flow sensor (11) and be connected.
2. The multifunctional test device for simulating the freezing process of a tunnel drainage system in cold regions according to claim 1, wherein the seepage pipeline system (4) comprises an upper horizontal seepage floral tube (41), a lower horizontal seepage floral tube (42), a first left vertical seepage floral tube (43), a second left vertical seepage floral tube (44) and a right vertical seepage floral tube (45) which are respectively arranged on the upper, lower, left and right side cavity walls of the filling cavity (101), the seepage hole section of the first left vertical seepage floral tube (43) is lower than the seepage hole section of the second left vertical seepage floral tube (44), one end of the upper horizontal seepage floral tube (41) is a water inlet end (411), the position of the upper horizontal seepage floral tube (41) close to one end thereof is communicated with one end of the right vertical seepage floral tube (45), the upper horizontal seepage floral tube (41) is positioned at the left vertical seepage floral tube (45), the first side switch (14) is arranged at the position of the right vertical seepage floral tube, the first side switch (14) is arranged at the position of the first side of the upper side switch (45), the first side switch (14) is arranged at the end of the first side switch (14), the upper end of the upper side switch (45) is arranged at the first end of the vertical switch (14), and a fifth switch valve (17) is arranged on the end, and the processing terminal (12) is electrically connected with the first switch valve (13), the second switch valve (14), the third switch valve (15), the fourth switch valve (16) and the fifth switch valve (17).
3. The multifunctional test device for simulating the freezing process of a tunnel drainage system in a cold region according to claim 1, wherein the camera (7) is a high-resolution wireless camera and is in wireless connection with the processing terminal (12).
4. The multifunctional test device for simulating the freezing process of a tunnel drainage system in a cold region according to claim 1, wherein the box coaming of the test box (1) is a transparent plate.
5. The multifunctional test device for simulating the freezing process of the tunnel drainage system in the cold region according to claim 1, further comprising a base (18), wherein the test box (1) and the test environment fan (8) are both fixed on the top end surface of the base (18), and a plurality of movable wheels (19) and a plurality of supporting leg cups (20) with adjustable heights are arranged on the bottom end surface of the base (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311436585.7A CN117554412B (en) | 2023-11-01 | 2023-11-01 | Multifunctional test device for simulating freezing process of tunnel drainage system in cold region |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311436585.7A CN117554412B (en) | 2023-11-01 | 2023-11-01 | Multifunctional test device for simulating freezing process of tunnel drainage system in cold region |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117554412A true CN117554412A (en) | 2024-02-13 |
| CN117554412B CN117554412B (en) | 2024-06-25 |
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