Test device for researching durability of concrete under coupling action of tide and wave

Abstract

The utility model relates to a concrete durability research test device under the tide and wave coupling effect, which belongs to the field of concrete structure durability key problem research, and comprises a water storage tank (1), a corrosion test box (6), a tide circulation control system (2), a control system (3) and a control system (4), the liquid inlet end of the tidal cycle control system (2) is communicated with the interior of the water storage tank (1), and the liquid outlet end of the tidal cycle control system (2) extends into the corrosion test box (6); the splash circulation control device (7) comprises a water tank (10-1), the water tank (10-1) rotates along a shaft, in the rotating process of the water tank (10-1), the water tank (10-1) descends to the water level line of the corrosion test box (6), scoops up a corrosion solution in the corrosion test box (6) and stores water, the water tank (10-1) continues to rotate, and water is splashed to a test piece (12) through movement inertia.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field that reinforced concrete structure durability problem research, specifically relates to a kind of concrete durability research test device under the coupling of tide and wave. BACKGROUND

[0002] Under marine environment, concrete durability related research is still the research hotspot in global range. At present, due to the limitation of test device, the research of most scholars is only carried out under certain single environmental condition, only single tide cycle action or single splash action can be simulated, and the coupling of tide and splash, which is more real complex erosion environment, cannot be simulated.

[0003] In addition, in the prior art, the dry-wet cycle environment under the splash action is simulated by periodic spraying. In order to prevent the water pump from being damaged due to continuous starting, the interval time of single opening and closing of the water pump should be greater than 0.5h. Since the concrete durability research usually needs to be tested for a long time (usually in months), when the splash action is simulated by spraying, in order to avoid the water pump from being damaged due to frequent opening and closing during the test, the dry-wet cycle period is usually greater than 0.5h, which is very different from the high-frequency dry-wet cycle environment under real splash action (the wave period is usually counted in seconds). Considering the great difference between the spraying period and the real wave period, it is very difficult and uneconomical to reduce the spraying period by improving the interval time of single opening and closing of the water pump. In addition, many scholars at home and abroad have found that dry-wet cycle mechanism has a significant influence on the chloride ion penetration resistance of concrete. Therefore, it is of great practical significance to explore a test method that can more realistically simulate the splash action. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the dry-wet cycle environment under the splash action simulated by the periodic spraying in the prior art, the dry-wet cycle period is greatly different, and the simulation of real environment is not good, so as to provide a concrete durability research test device under the coupling of tide and wave.

[0005] In order to solve the above problems, the utility model provides a concrete durability research test device under the coupling of tide and wave, which comprises: a water storage tank and a corrosion test box, the corrosion test box is placed for test specimen, and further comprises:

[0006] A tide cycle control system, the liquid inlet end of the tide cycle control system is in communication with the inside of the water storage tank, and the liquid outlet end of the tide cycle control system extends into the corrosion test box;

[0007] The splash cycle control device also comprises a water tank, which rotates along an axis, and during the rotation of the water tank, the water level in the corrosion test tank is lowered, the corrosion solution in the corrosion test tank is scooped up and stored, and the water tank continues to rotate to splash the water to the test specimen by using the inertia of motion.

[0008] Preferably, the water tank comprises a scooping end and a draining end, and the splash cycle control device further comprises:

[0009] A water scooping plate is arranged at the draining end of the water tank, and during the rotation of the water tank, the water in the water tank due to gravity is collected and the water flow direction is extended;

[0010] A water feeding mechanism is arranged between the water tank and the test specimen, the water feeding mechanism uses the water scooping plate to extend the water conveying path, and the distal end of the water feeding mechanism corresponds to the test splash part of the test specimen, so that the water conveying path indirectly repeatedly conveys water to the test splash part to simulate the high-frequency dry-wet cycle action under the action of waves.

[0011] Preferably, the splash cycle control device further comprises a water supply vehicle, the water supply vehicle is uniformly distributed with the water tank, the center of the water supply vehicle is provided with a rotating shaft, an external driving part is used to drive the rotating shaft to rotate, and the opening of the water tank is provided with a water overflow prevention plate.

[0012] Preferably, the splash cycle control device further comprises a floating mechanism, and the floating mechanism comprises:

[0013] A bottom base is arranged at the bottom of the corrosion test tank;

[0014] A connecting rod is vertically fixed at both ends of the bottom base;

[0015] An air bag is sleeved on the connecting rod, adjacent air bags are connected through

[0016] A bottom floating plate is connected to form a floating platform, and by adjusting the position height of the air bag sleeved on the connecting rod, the water supply vehicle and the water feeding mechanism can float at a specified water depth of the corrosion test tank.

[0017] Preferably, the tidal cycle control system comprises an electromagnetic valve, a water inlet and outlet group pump, and a flow valve, wherein the water storage tank, the electromagnetic valve, the water inlet and outlet group pump, the flow valve, and the corrosion test tank are sequentially connected through PVC pipes.

[0018] In order to solve the above technical problems, the utility model also provides a method for the concrete durability research test device under the coupling action of tides and waves, which comprises the following steps:

[0019] a. According to the tidal, wave, wind and temperature environmental factors under pre-simulation environment, set the tidal range H1, tidal cycle period T1, wave height H2, wave period T2, wind speed C, duration t, frequency f and temperature T;

[0020] b. The control system can obtain / calculate the following parameters according to the settings of step a:

[0021] The water level rising and falling range in the corrosion test box is the tidal range H1, and the time for the water level in the corrosion test box to complete one rising and falling is the tidal cycle period T1;

[0022] The water supply mechanism in the wave-spray cycle control device sets the wave height H2 by adjusting the height difference between the water outlet and the water level line, and the time required for the water supply vehicle to rotate one round, i.e. the period, is the wave period T2, wherein the frequency f2 of the motor is 4 / T2;

[0023] c. The tidal cycle control system controls the flow valve to realize slow rising or lowering of the water level in the corrosion test box according to the calculation results of step b and the real-time water level fed back by the water level sensor;

[0024] d. The wave-spray cycle control device controls the rotation of the water supply vehicle by using the motor according to the results of step b, and the working frequency of the motor is set as f2;

[0025] e. The water supply vehicle and the water supply mechanism of the wave-spray cycle control device float at a certain water level by the floating mechanism, and before the test starts, the relative position of the water supply vehicle and the water level line is adjusted by adjusting the size of the air bag of the floating mechanism, so as to ensure that the water tank can take enough water for the test;

[0026] f. The tidal cycle control system controls the temperature in the corrosion test box by the PLC controller according to the target temperature T of step a and the real-time temperature fed back by the sensor;

[0027] Preferably, according to the wind conditions of step a, the air circulation fan is controlled to be turned on and off periodically by the PLC control system to accelerate the drying process of the test specimen.

[0028] The utility model has the following advantages:

[0029] The utility model discloses a kind of concrete durability research test devices under the coupling of tide and wave, realize the simulation of high-frequency dry-wet cycle environment under the joint action of wave period with s measured tide and wave, it can be used to carry out reinforced concrete durability test research under complex marine environment, while greatly reduce the complexity of traditional tide wave-spray cycle simulation device And equipment construction and maintenance cost, with the characteristics such as simple operation, easy to use in test process. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the specific embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description, and obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0031] Fig. 1 It is a structural schematic view of the concrete durability research test device under the coupling action of tides and waves according to the present application.

[0032] Fig. 2 It is a structural schematic view of the wave-splashing circulation control device according to the present application.

[0033] Reference signs:

[0034] 1, water storage tank; 2, tide circulation control system; 3, electromagnetic valve; 4, water inlet and outlet group pump; 5, flow valve; 6, corrosion test box; 7, wave-splashing circulation control device; 8, air circulation fan; 9, floating mechanism; 9-1, air bag; 9-2, connecting rod; 9-3, bottom floating plate; 9-4, bottom base; 10, water supply vehicle; 10-1, water tank; 10-2, water lifting plate; 10-3, transmission shaft; 10-4, transmission chain; 10-5, motor; 11, water feeding mechanism; 12, test specimen; 13, specimen base; 14, water overflow prevention plate. DETAILED DESCRIPTION

[0035] The technical solutions of the present application will be described clearly and completely in combination with the drawings, and obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0036] SUMMARY

[0037] In the prior art, the dry-wet cycle environment under the wave-splashing action is usually simulated by the periodic spraying method. Due to the restriction of the interval time of water pump start and stop (usually greater than 0.5h), the dry-wet cycle period simulated by the spraying method is usually counted by hours, which is quite different from the high-frequency dry-wet cycle environment under the wave-splashing action (the wave period is usually counted by seconds):

[0038] The concrete durability research test device under the coupling action of tides and waves in the present embodiment can accurately simulate the complex marine environment under the coupling action of tides and waves (in which the wave period is counted by seconds), and solves the problem that the existing test device and method cannot comprehensively research and analyze the durability of concrete under the coupling action of tides and waves in the complex marine environment.

[0039] The present invention will be further described below with reference to specific embodiments. The following embodiments are merely illustrative and not restrictive, and it should not be understood that the present invention is limited to the following embodiments.

[0040] like Figs. 1-2 As shown, a test device for studying the durability of concrete under the coupled effects of tides and waves includes a water tank 1, a tidal circulation control system 2, a corrosion test chamber 6, and a splash circulation control device 7. The splash circulation control device 7 drives a rotating water tank 10-1 to scoop up the corrosive solution in the corrosion test chamber 6. During the subsequent rotation process, the corrosive solution is sequentially passed through the discharge end of the water tank 10-1 and the water-lifting plate 10-2 at the discharge end of the water tank 10-1 to extend the liquid infusion channel. During the rotation process, the distal end of the water-lifting plate 10-2 approaches the water-feeding mechanism 11, contacts and further elastically squeezes the water-feeding mechanism 11, and finally separates from the water-feeding mechanism 11 due to elastic deformation, completing the circulation of the corrosive solution and simulating a dry-wet cycle of the test specimen 12 under the action of waves. By continuously driving the water tank 10-1 to rotate along its axis, the simulated dry-wet cycle under the action of waves is achieved.

[0041] Furthermore, in order to simulate the dry-wet cycle of waves, according to the characteristics of the concrete structure under the action of waves that the dry and wet time are equal and the action is continuous, it is necessary to meet the requirements that the drying time is equal to the wetting time and the action is continuous. Therefore, the above-mentioned wave splash circulation control device 7 also includes a water supply truck 10. The purpose of setting up the water supply truck 10 is to provide a mounting carrier for the water tank 10-1. The water tanks 10-1 are evenly distributed on the water supply truck 10. Driving the water supply truck 10 to rotate can drive the water tanks 10-1 loaded at different positions thereon to simultaneously scoop, store, and transport the corrosive solution to the water delivery mechanism 11. At the same time, the evenly distributed water tanks 10-1 cooperate with the water supply truck 10 rotating at a constant speed to scoop, store, and transport the corrosive solution in a continuous cycle, simulating the continuous dry-wet cycle of waves.

[0042] In this embodiment, the water supply vehicle 10 is evenly divided into 8 parts, and the water tanks 10-1 are evenly spaced to achieve intermittent periodic water supply, thereby simulating the dry-wet cycle under the action of waves; the water-lifting plate 10-2 can lift water to the water supply mechanism 11, and the outer edge of the water-lifting plate 10-2 needs to exceed the inner edge of the water supply mechanism 11. In order to ensure that the water-lifting plate 10-2 can smoothly pass through the water supply mechanism 11 by deforming when in contact with the water supply mechanism 11, it is recommended that the water-lifting plate 10-2 be made of rubber material.

[0043] Further, such as Fig. 1It can be seen that the lower part of the water supply vehicle 10 is immersed in the corrosion solution of the corrosion test box 6. During the rotation of the water supply vehicle 10, the corrosion solution resistance from the corrosion solution and the increased gravity caused by the water tank 10-1 need to be overcome. Therefore, in the present scheme, the transmission shaft 10-3, the transmission chain 10-4 and the motor 10-5 are designed as the driving mechanism to provide driving force for the water supply vehicle 10. The transmission shaft 10-3 is installed at the center of the water supply vehicle 10. One end of the transmission chain 10-4 is sleeved on the transmission shaft 10-3, and the other end is installed on the driving end of the motor 10-5. The height of the driving shaft of the motor 10-5 is slightly higher than the height of the transmission shaft 10-3 arranged on the water supply vehicle 10. The reason for such arrangement is that when the water tank 10-1 is filled with water after being immersed in the corrosion solution during the rotation of the water supply vehicle 10, the overall weight of the water supply vehicle 10 increases. The transmission shaft 10-3 is integrated with the water supply vehicle 10, so the transmission shaft 10-3 has a downward movement trend. In the water storage state, the point of the transmission shaft 10-3 drops, and the transmission chain 10-4 is still in a taut state. Not only can it continue to normally transmit power, but also can increase the friction force with the transmission shaft 10-3 and improve the work efficiency.

[0044] Further, the water tank 10-1 is provided with an opening. One end of the opening is a water outlet end, and the other end is a water scooping end. Since the actual solution capacity changes during the overall rotation of the water supply vehicle 10, according to the dry-wet cycle requirement of the simulated wave, the speed, total liquid volume and splashing position of the corrosion solution splashing to the test splashing part of the test specimen 12 meet the quantitative cycle requirement. Due to the design requirement that the water tank 10-1 is embedded in the water supply vehicle 10, during the process of the water tank 10-1 entering the corrosion solution liquid surface to rotating and lifting to leave the corrosion solution liquid surface, the opening of the water tank 10-1 is in an inverted state for a certain period of time. According to the flow characteristics, the part of the corrosion solution scooped into the water tank 10-1 from the water scooping end of the opening during the rotation process will flow back to the corrosion test box 6, resulting in the situation that the water storage capacity does not meet the standard or the water storage capacities in the water tanks 10-1 are different. At this time, the water scooping end of the opening is provided with a water overflow prevention plate 14. The height of the distal end of the water overflow prevention plate 14 relative to the bottom surface of the corrosion test box 6 is slightly higher than the height of the water scooping end of the opening relative to the bottom surface of the corrosion test box 6. During the lifting of the water tank 10-1, the angle between the surface where the water overflow prevention plate 14 is located and the bottom surface of the corrosion test box 6 gradually increases until the surface where the water scooping end of the opening is located is parallel to the bottom surface of the corrosion test box 6. The corrosion solution in the water tank 10-1 no longer has a tendency to overflow.

[0045] Compared with reducing the area of the opening, increasing the water overflow prevention plate 14 has the following advantages:

[0046] 1、If the opening area is reduced to prevent or reduce the backflow of the corrosion solution liquid, in the process of scooping water, the opening area determines the amount of liquid entering the water tank 10-1 in a fixed time under the same rotation speed, increasing the anti-overflow plate 14 can increase the amount of liquid remaining in the water tank 10-1 without reducing the opening area;

[0047] 2、The anti-overflow plate 14 is driven to move in the corrosion solution by the rotation of the water tank 10-1, so that the corrosion solution in the corrosion test tank 6 forms a certain flowability, and the corrosion solution collides with the inner wall of the corrosion test tank 6. According to the principle of action and reaction, the pushed corrosion solution is bounced back after hitting the side wall of the corrosion test tank 6, and the speed of entering the opening is accelerated in the relative static state, and the amount of corrosion solution entering the opening in unit time is increased, which ensures the amount of corrosion solution splashed to the specified area in the circulating splashing operation.

[0048] Further, the splashing cycle control device 7 also includes a floating mechanism 9, which is a key device for coupling the effects of tides and waves. As shown in Fig. 2 A-A is the liquid level position of the corrosion test tank 6 containing the corrosion solution, the floating mechanism 9 includes: a bottom base 9-4 arranged at the bottom of the corrosion test tank 6, a connecting rod 9-2 vertically fixed at both ends of the bottom base 9-4, and a gas bag 9-1 sleeved on the connecting rod 9-2, adjacent gas bags 9-1 are connected through a bottom floating plate 9-3 to form a floating platform. By adjusting the position height of the gas bag 9-1 sleeved on the connecting rod 9-2, the water supply vehicle 10 and the water supply mechanism 11 can float at a specified water depth of the corrosion test tank 6. The tide cycle control system 2 controls the rising and falling of the liquid level A-A, and the floating mechanism 9 can make the splashing cycle control device rise and fall with the water level, so as to realize the simulation of the variable frequency dry-wet cycle process under the coupling effect of tides and waves.

[0049] It should be further pointed out that the bottom floating plate 9-3 cooperates with the gas bag 9-1 sleeved on the connecting rod 9-2 to adjust the height of the gas bag 9-1 sleeved on the connecting rod 9-2 to adapt to the position of the corrosion solution where the bottom floating plate 9-3 is located in the corrosion test tank 6. The design requirements of the position of the bottom floating plate 9-3 meet the following points:

[0050] 1、As shown in Fig. 2 the water tank 10-1 rotating to the lower part of the water supply vehicle 10 is completely immersed in the liquid surface A of the corrosion solution, and at the same time, the height of the rotating shaft 10-3 integrated on the water supply vehicle 10 is slightly lower than the height of the driving shaft of the motor 10-5 arranged on the same plane of the bottom floating plate 9-3;

[0051] 2、Before the test, adjust the relative position of the water supply vehicle 10 and the water level line by adjusting the size of the air bag 9-1 of the floating mechanism 9, and pay attention to ensure that the water tank 10-1 of the water supply vehicle 10 can take enough corrosion solution for the test.

[0052] Further, a water supply mechanism 11 is arranged between the water tank 10-1 and the test specimen 12, and the water supply mechanism 11 extends the water supply passage by using the water lifting plate 10-2, and the distal end of the water supply mechanism 11 corresponds to the test splash part of the test specimen 12, and the water supply passage indirectly repeatedly delivers water to the test splash part, so as to simulate the high-frequency dry-wet cycle action under the action of waves.

[0053] The air circulation fan 8, temperature sensor and anemometer are installed in the corrosion test box 6, and the data collected by the temperature sensor and the anemometer are transmitted to the control system in real time; the bottom of the corrosion test box 6 includes a drain valve, and the waste water can be discharged from the drain valve at the bottom after the test is completed.

[0054] Further, the tide cycle control system 2 connected with the inside of the corrosion test box 6 includes:

[0055] The liquid inlet pipe and the liquid outlet pipe, the liquid inlet end of the liquid inlet pipe is connected with the lower side wall of the water storage tank 1, the liquid outlet end of the liquid inlet pipe enters the chamber from the upper part of the corrosion test box 6 and is bent to extend to the bottom of the corrosion test box 6; the liquid inlet end of the liquid outlet pipe is connected with the lower side wall of the corrosion test box 6, and the liquid outlet end of the liquid outlet pipe enters the chamber from the upper part of the water storage tank 1 and is bent to extend to the bottom of the water storage tank 1, and in the test process, the liquid level in the water storage tank 1 and the liquid level of the corrosion test box 6 are relatively alternately slowly rising or slowly falling.

[0056] Further, the liquid inlet pipe and the liquid outlet pipe are provided with a water inlet and outlet group pump 4, one of which is arranged on the liquid inlet pipe, and the other is arranged on the liquid outlet pipe, the water level in the corrosion test box is slowly rising and slowly falling by controlling the flow difference of the two water pumps, the water inlet or water outlet is controlled by using the independent electromagnetic valve 3 arranged on the liquid inlet pipe and the liquid outlet pipe respectively, and the water inlet flow or water outlet flow is controlled by using the independent flow valve 5 arranged on the liquid inlet pipe and the liquid outlet pipe respectively.

[0057] It should be particularly pointed out that the water storage tank 1, the tide cycle control system 2 and the corrosion test box 6 are connected through rust-proof pipes to prolong the service life.

[0058] The tide cycle control system 2 includes electromagnetic valves 3, water inlet and outlet group pumps 4, flow valves 5, air circulation fans 8, PVC pipes, temperature sensors; the water inlet and outlet group pump 4 is composed of two water pumps, the water level in the corrosion test box is slowly rising and slowly falling by controlling the flow difference of the two water pumps, the water storage tank 1, the electromagnetic valve 3, the water inlet and outlet group pump 4, the flow valve 5 and the corrosion test box 6 are connected in sequence through the PVC pipe.

[0059] A tidal and wave coupling based concrete durability research test method based on the above test device includes the following steps:

[0060] a. According to the test requirements, several test specimens 12 are made and placed on the test specimen base 13. The inside of the water storage tank 1 is pre-configured with corrosion solution for testing according to the test requirements.

[0061] b. According to the environmental factors such as tide, wave, wind and temperature under the pre-simulation environment, the tidal range H1, the tidal cycle period T1, the wave height H2, the wave period T2, the wind speed C, the duration t, the frequency f and the temperature T are set.

[0062] c. According to the setting of step a, the following parameters can be obtained / calculated:

[0063] The water level rising and falling amplitude in the corrosion test tank 6 is the tidal range H1, and the time for the water level in the corrosion test tank 6 to complete one rise and fall is the tidal cycle period T1;

[0064] The water supply car 10 and the water supply device 11 of the splash cycle control device 7 float at a certain water level through the floating mechanism 9; before the test starts, the relative position of the water supply car 10 and the water level line is adjusted by adjusting the size of the air bag 9-1 of the floating mechanism 9, and attention should be paid to ensure that the water tank 10-1 of the water supply car 10 can take enough water for testing;

[0065] The water supply device 11 in the splash cycle control device 7 sets the wave height H2 by adjusting the height difference between its water outlet and the water level line, and the time required for the water supply car 10 to rotate one round is 1 / 4 of the wave period T2, wherein the frequency f2 of the motor 10-5 is 4 / T2;

[0066] d. According to the calculation results of step b and the real-time water level feedback by the water level sensor, the tidal cycle control system 2 uses a PLC controller to control the flow valve 5 to realize the slow rising or falling of the water level in the corrosion test tank 6;

[0067] e. According to the results of step b, the splash cycle control device 7 uses the motor 10-5 to control the rotation of the water supply car 10, and the working frequency of the motor 10-5 is set to f2;

[0068] f. According to the target temperature T of step a and the real-time temperature feedback by the sensor, the tidal cycle control system 2 controls the temperature in the corrosion test tank 6 through the PLC controller; according to the wind conditions of step a, the PLC control system controls the air circulation fan 8 to be turned on and off periodically to accelerate the drying process of the test specimen 12.

[0069] In the description of the utility model, it needs to explain, the term "center" "upper" "lower" "left" "right" "vertical" "horizontal" "internal" "external" and so on indicate the orientation or positional relationship is based on the orientation or positional relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and is not indicating or implying that the device or element indicated must have a particular orientation, a particular orientation structure and operation, therefore cannot be understood as the limitation of the utility model. In addition, the term "first", "second", "third" is only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0070] In the description of the utility model, it needs to explain, unless otherwise explicitly provided and limited, the term "installation", "connection" "connect" should be broad understanding, for example, can be fixed connection, can also be detachable connection, or integrally connected;Can be mechanical connection, can also be electrical connection;Can be directly connected, can also be indirectly connected through the intermediate medium, can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0071] In addition, the technical features involved in the different embodiments of the utility model described below can be combined with each other as long as there is no conflict.

[0072] Obviously, the above examples are only examples for clearly illustrating, and not the limitation of the embodiments. For ordinary skilled in the art, on the basis of the above description, other different forms of changes or variations can also be made. Here, it is not necessary and cannot be exhausted. The obvious changes or variations derived from the protection scope of the utility model.

Claims

1. A device for researching the durability of concrete under the coupling action of tides and waves, comprising a water storage tank (1) and a corrosion test tank (6) in which a test specimen (12) is placed, characterized in that, Also include: Tidal circulation control system (2), the liquid inlet end of the tidal circulation control system (2) is communicated with the inside of the water storage tank (1), the liquid outlet end of the tidal circulation control system (2) extends into the corrosion test box (6); Splash cycle control device (7), the splash cycle control device (7) includes a water tank (10-1), the water tank (10-1) rotates along the shaft, during the rotation of the water tank (10-1), the water level line of the corrosion test box (6) is lowered, the corrosion solution in the corrosion test box (6) is scooped and stored, the water tank (10-1) continues to rotate, and the water is splashed to the test specimen (12) by using the motion inertia.

2. The test device for studying the durability of concrete under the coupling action of tides and waves according to claim 1, characterized in that: The tidal circulation control system (2) includes a solenoid valve (3), a water inlet and outlet group pump (4), a flow valve (5), an air circulation fan (8), a PVC pipe and a temperature sensor, the water inlet and outlet group pump (4) is composed of two water pumps, the water storage tank (1), the solenoid valve (3), the water inlet and outlet group pump (4), the flow valve (5) and the corrosion test box (6) are connected in sequence by the PVC pipe respectively.

3. The test apparatus for studying the durability of concrete under tidal and wave coupling according to claim 1, wherein The water tank (10-1) includes a scooping water end and a water discharge end, and the splash cycle control device (7) further includes: A water lifting plate (10-2) is arranged at the water discharge end of the water tank (10-1), and during the rotation of the water tank (10-1), the water tank (10-1) receives the water pouring out due to gravity, and the water lifting plate (10-2) extends the flow trend direction of the water; A water feeding mechanism (11) is arranged between the water tank (10-1) and the test specimen (12), the water feeding mechanism (11) extends the water conveying path by using the water lifting plate (10-2), and the distal end of the water feeding mechanism (11) corresponds to the test splash part of the test specimen (12), so that the water is indirectly and repeatedly conveyed to the test splash part through the water conveying path, so as to simulate the high-frequency dry-wet cycle action under the action of waves.

4. The test apparatus for studying the durability of concrete under tidal and wave coupling according to claim 3, wherein A water supply vehicle (10) is further included, the water supply vehicle (10) is uniformly distributed with the water tank (10-1), a rotating shaft (10-3) is arranged at the center of the water supply vehicle (10), an external driving part is used to drive the rotating shaft (10-3) to rotate, and an anti-overflow plate (14) is arranged at the opening of the water tank (10-1).

5. The test apparatus for studying the durability of concrete under tidal and wave coupling according to claim 1, wherein The splash cycle control device (7) further includes a floating mechanism (9), and the floating mechanism (9) includes: A bottom base (9-4) is arranged at the bottom of the corrosion test box (6); A connecting rod (9-2) is vertically fixed at both ends of the bottom base (9-4); Air bags (9-1) are sleeved on the connecting rod (9-2), adjacent air bags (9-1) are connected through a bottom floating plate (9-3) to form a floating platform, and the water supply vehicle (10) and the water feeding mechanism (11) are floated at a specified water depth of the corrosion test box (6) by adjusting the position height of the air bags (9-1) sleeved on the connecting rod (9-2).

6. The test apparatus for studying the durability of concrete under tidal and wave action according to any one of claims 1 to 5, characterized in that, The tidal circulation control system (2) includes a solenoid valve (3), a water inlet and outlet group pump (4), a flow valve (5), wherein the water storage tank (1), the solenoid valve (3), the water inlet and outlet group pump (4), the flow valve (5) and the corrosion test box (6) are connected in sequence through PVC pipes respectively.

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