Multifunctional simulation test system for structural water-induced disasters

Abstract

The invention discloses a multifunctional simulation test system for structural water-induced disasters, which comprises a circulating water tank, a power unit, a deep groove scouring test unit, a water flow earthquake coupling test unit and a scouring and abrasion test unit, and is characterized in that the circulating water tank comprises a U-shaped groove part and an annular groove part which are circularly communicated; the power unit, the deep groove washout test unit and the water flow earthquake coupling test unit are sequentially installed on the U-shaped groove part, the power unit is used for controlling water flow power in the circulating water tank, and the deep groove washout test unit is used for simulating the washout environment of deep groove sediment. The water flow and earthquake coupling test unit is used for simulating a disaster environment in which various water flow states are coupled with earthquakes, and the impact wear test unit is mounted on the annular groove part and is used for simulating an impact environment of gravel-containing water flow on the annular groove part, so that the system can simulate various water-induced disasters, and a self-circulation system of the system is used for simulating the disaster environment of the gravel-containing water flow. The device is environment-friendly, energy-saving, low in manufacturing cost and simple to maintain while meeting functions.

Description

Technical Field

[0001] The invention belongs to the field of water damage, and in particular relates to a multifunctional simulation test system for structural water disasters. Background Art

[0002] In recent years, more and more structures have failed due to floods. The effects of floods on structures include static / dynamic water pressure, scouring, and abrasion. Long-term effects may cause the structures to collapse due to insufficient bearing capacity. In earthquake-prone areas, structures may be affected by the combined effects of floods and earthquakes.

[0003] At present, in terms of abrasion test, the current "Test Code for Hydraulic Concrete" (SL / T 352-2020) stipulates that the concrete abrasion test methods include the ring method and the underwater steel ball method. The corresponding abrasion devices are concrete abrasion test machine and concrete scour test machine. The test objects and results are only for the material level, which cannot reflect the change of bearing capacity of concrete components. However, the bearing capacity of concrete components after abrasion is a key indicator of structural design and protection. On the other hand, the media for concrete abrasion damage caused by floods include water flow, sand and boulders, while the two test methods specified in the specification simulate water flow and sand as the media, without considering the influence of boulder or gravel abrasion. In summary, the existing abrasion test methods cannot test the abrasion resistance of components. The concrete abrasion environment simulated by the test methods is somewhat different from the actual one. The accuracy of the test results needs to be verified, and the test results are difficult to apply to the abrasion resistance design of engineering. There is no abrasion test device for large structures or components. Abrasion research is mostly completed by underwater steel ball method of small specimens, and there is no scour and earthquake coupling test device.

[0004] Based on this, the applicant considered designing a multifunctional simulation test system for structural water-induced disasters. Summary of the invention

[0005] In view of the above problems, the present invention provides a multifunctional simulation test system for structural water disasters that overcomes the above problems or at least partially solves the above problems. The technical solution is as follows:

[0006] A multifunctional simulation test system for structural water-induced disasters comprises a circulating water tank, a power unit, a deep tank scour test unit, a water flow seismic coupling test unit and an abrasion test unit, wherein the circulating water tank comprises a U-shaped tank portion and an annular tank portion which are circulated and connected, the power unit, the deep tank scour test unit and the water flow seismic coupling test unit are sequentially installed on the U-shaped tank portion, the power unit is used to control the water flow power in the circulating water tank, the deep tank scour test unit is used to simulate the scouring environment of deep tank sediment, the water flow seismic coupling test unit is used to simulate the disaster environment of multiple water flow states coupled with earthquakes, and the abrasion test unit is installed on the annular tank portion to simulate the impact environment of gravel-containing water flow on the annular tank portion.

[0007] Compared with the prior art, the multifunctional simulation test system for structural water disasters of the present invention has the following advantages:

[0008] Through the circulating water tank, power unit, deep tank scouring test unit, water flow seismic coupling test unit and abrasion test unit, the system can simulate various water-induced disasters, provide research equipment for relevant scientific researchers, and play an important role in promoting the understanding and protection of water-induced disasters. The self-circulating system of the system is environmentally friendly and energy-saving while meeting the functions; it has integrated functions, low manufacturing costs, reasonable design, and simple maintenance of the system in the later stage.

[0009] The entire system integrates multiple innovative test units, which can carry out tests individually or simultaneously. It occupies a small area and shares a set of power units, avoiding the waste of equipment, site and funds caused by the construction of a single device. It has good economic benefits and high water utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0011] Figure 2 This is an enlarged top view of the structure of the impact and grinding test unit;

[0012] Figure 3 It is a schematic diagram of the cross-sectional structure of the first bearing arm carrying the concrete component in the annular water tank;

[0013] Figure 4 It is a schematic diagram of the cross-sectional structure of the first carrying arm being arranged in the annular water tank;

[0014] Figure 5 It is a schematic diagram of the cross-sectional structure of a first stirring arm arranged in an annular water tank;

[0015] Figure 6 It is a schematic diagram of the longitudinal section structure of the water flow seismic coupling test unit in the test pipe section;

[0016] Figure 7 for Figure 6 A schematic diagram of the structure in which the structural model is placed in a shallow sand trough and the third baffle is opened to simulate scour;

[0017] Description of Reference Numerals

[0018] 100 center shaft;

[0019] 210 test slot section, 211 first docking end, 212 power end, 220 power slot section, 230 annular slot portion, 231 second docking end, 240 first baffle plate, 250 second baffle plate;

[0020] 310 first bearing arm, 320 second bearing arm;

[0021] 410 a first stirring arm, 420 a second stirring arm;

[0022] 510 support arm, 520 support seat, 530 base rail, 540 convex rail, 550 dust-proof brush;

[0023] 610 stirring rod, 620 stirring fan;

[0024] 700 water pumps;

[0025] 800 deep sand trough;

[0026] 910 enclosing retaining wall, 920 partition, 930 third baffle, 940 earthquake simulation platform, 950 waterproof membrane, 960 shallow sand trough. DETAILED DESCRIPTION

[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0028] When implementing: Figure 1-7 As shown, a multifunctional simulation test system for structural water disasters includes a circulating water tank, a power unit, a deep tank scour test unit, a water flow seismic coupling test unit and an abrasion test unit. The circulating water tank includes a U-shaped tank portion and an annular tank portion 230 that are circulated and connected. The power unit, the deep tank scour test unit and the water flow seismic coupling test unit are sequentially installed on the U-shaped tank portion. The power unit is used to control the water flow power in the circulating water tank. The deep tank scour test unit is used to simulate the scouring environment of deep tank sediment. The water flow seismic coupling test unit is used to simulate a disaster environment in which various water flow states are coupled with earthquakes. The abrasion test unit is installed on the annular tank portion 230 to simulate the impact environment of gravel-containing water flow on the annular tank portion 230.

[0029] Through the circulating water tank, power unit, deep tank scour test unit, water flow seismic coupling test unit and abrasion test unit, the system can simulate various water-induced disasters, provide research equipment for relevant scientific researchers, and play an important role in promoting the understanding and protection of water-induced disasters. In addition, the self-circulating system of the system is environmentally friendly and energy-saving while meeting the functions, with integrated functions, low manufacturing cost, reasonable design, and simple maintenance of the system in the later stage.

[0030] The entire system integrates multiple innovative test units, which can carry out tests individually or simultaneously. It occupies a small area and shares a set of power units, avoiding the waste of equipment, site and funds caused by the construction of a single device. It has good economic benefits and high water utilization rate.

[0031] During implementation, water is contained in the circulating water tank.

[0032] During implementation, the various water flow states include dynamic water state, static water state and flushing state.

[0033] In this embodiment, Figure 1-7 As shown, the U-shaped groove portion includes two test groove sections 210 and one power groove section 220, the two test groove sections 210 are arranged opposite to each other, each of the test groove sections 210 includes a relative power end 212 and a first docking end 211, the two ends of the power groove section 220 are respectively connected to the two power ends 212, and the annular groove portion 230 is provided with two relative second docking ends 231, the two first docking ends 211 are respectively connected to the two second docking ends 231, and the impact and grinding test unit is installed in the middle of the ring of the annular groove portion 230.

[0034] During implementation, after each first butt end 211 and the second butt end 231 are connected to each other, a flow diversion channel is formed at the butt joint, and the flow diversion channel includes an outer ring flow channel and an inner ring flow channel. The outer ring flow channel is formed by the combination of the U-shaped groove portion as a whole and the outer groove section of the annular groove portion 230, and the inner ring flow channel is formed by the annular groove portion 230 itself. The outer flow port and the inner flow port are formed at the diversion of the outer flow channel and the inner flow channel, respectively. The first baffle 240 is connected to the outer flow port, and the second baffle 250 is connected to the inner flow port. Both the first baffle 240 and the second baffle 250 can be removed from the circulating water tank.

[0035] The first baffle 240 and the second baffle 250 have two combined use states. The first combined use state is that when the water body needs to circulate in the outer circulation channel, the first baffle 240 is removed and the second baffle 250 is retained at the inner flow port to block the water flow from circulating in the inner circulation channel. The second combined use state is that when the water body needs to circulate in the inner circulation channel, the second baffle 250 is removed and the first baffle 240 is retained at the outer flow port to block the water flow from circulating in the outer circulation channel.

[0036] In this embodiment, Figure 1-7As shown, the impact and grinding test unit includes a central rotating shaft 100, a first bearing arm 310 and a first stirring arm 410. The central rotating shaft 100 is rotatably arranged vertically at the center of the annular groove portion 230. The top of the central rotating shaft 100 extends upward from the groove top surface of the annular groove portion 230. The first bearing arm 310 includes a first end and a second end opposite to each other. The first end is fixedly connected to the top of the central rotating shaft 100, and the second end extends radially outward from the central rotating shaft 100 to just above the notch of the annular groove portion 230. A bearing mechanism is arranged on the second end. The mechanism extends downward into the annular groove portion 230, and a concrete component is carried on the supporting mechanism. A rotation angle is formed between the first stirring arm 410 and the first supporting arm 310. The first stirring arm 410 includes a third end and a fourth end relative to each other. The third end is fixedly connected to the top of the central rotating shaft 100, and the fourth end extends radially outwardly along the central rotating shaft 100 to just above the notch of the annular groove portion 230. A stirring mechanism is arranged on the fourth end, and the stirring mechanism extends downward into the annular groove portion 230, and is used to stir the water in the annular groove portion 230.

[0037] By setting the central rotating shaft 100, the annular groove 230, the first bearing arm 310 and the first stirring arm 410, the central rotating shaft 100 drives the first bearing arm 310 and the first stirring arm 410 to rotate along the circumferential direction of the annular groove 230, so as to drive the concrete component on the bearing mechanism to collide with the water in the annular groove 230 to carry out the anti-impact and abrasion test. The "water does not move + component rotates" loading method greatly reduces the energy consumption of the device, and is energy-saving and environmentally friendly; at the same time, the first stirring arm 410 and the stirring mechanism can further stir the water in the annular groove 230, so that the test process is closer to the actual environment, and the authenticity of the test results is greatly improved, forming a set of concrete anti-impact and abrasion test equipment that can be used for material performance research, equipment performance verification, and structural design analysis.

[0038] During implementation, a motor is disposed at the bottom of the central rotating shaft 100 , and the rotating shaft of the motor is coaxially connected to the central rotating shaft 100 to drive the central rotating shaft 100 to rotate automatically.

[0039] During implementation, an outflow pipe is provided at the bottom of the annular groove portion 230 , and an outflow port is provided between the outflow pipe and the annular groove portion 230 .

[0040] During implementation, the rotation angle between the first stirring arm 410 and the first carrying arm 310 is ninety degrees.

[0041] In this embodiment, Figure 1-7As shown, the bearing mechanism includes a support arm 510 and a support seat 520, the support arm 510 includes a relative connecting end and a bearing end, the connecting end is connected to the second end of the first bearing arm 310, the bearing end extends downward to the bottom of the annular groove 230, and the support seat 520 is installed on the bearing end for bearing the concrete member.

[0042] In this way, by setting the support arm 510 and the support seat 520, the concrete component can be hoisted under the first bearing arm 310 to better collide and rub with the water in the annular groove 230, reduce the rotational resistance during rotational collision, and the bearing structure is also relatively simple, easy to implement, and has high reliability.

[0043] In this embodiment, Figure 1-7 As shown, an annular track is arranged on the bottom surface of the annular groove portion 230, and the annular track is arranged coaxially with the annular groove portion 230. A sliding groove is opened at the bottom of the support seat 520, and the support seat 520 is slidably arranged on the annular track through the sliding groove.

[0044] In this way, by setting up the circular track, the support seat 520 can move along the circular track, thereby enhancing the stability of the support seat 520 during movement, and preventing the centrifugal force generated during rotation from generating a large pulling force on the first supporting arm 310. The rotation is more stable, reducing wear and tear, and enhancing the service life of the first supporting arm 310 and the support seat 520.

[0045] In this embodiment, Figure 1-7 As shown, the annular track includes a base rail 530 and a convex rail 540. The base rail 530 is fixed to the bottom surface of the annular groove portion 230, and the convex rail 540 is fixed to the middle of the top surface of the base rail 530 and is coaxially arranged with the base rail 530. The inner contour of the cross section of the sliding groove is the same as the outer contour of the cross section of the annular track.

[0046] In this way, by setting the base rail 530 and the convex rail 540, the base rail 530 can better support the support seat 520 and resist the radial centrifugal force, and the convex rail 540 can reduce the deflection centrifugal force generated by the support seat 520 relative to the base rail 530 due to the different specific gravity during the rotation process, thereby further enhancing the stability and reliability of the support seat 520 during rotation.

[0047] In this embodiment, Figure 1-7 As shown, a sliding gap is provided between the bottom surface of the support seat 520 and the bottom surface of the annular groove portion 230 , and a dustproof brush is provided in the sliding gap, and the dustproof brush is fixedly connected to the bottom surface of the support seat 520 .

[0048] In this way, by providing the sliding gap, the friction force generated between the support seat 520 and the bottom surface of the annular groove 230 when the support seat 520 moves on the annular track is reduced, thereby enhancing the smoothness of movement of the support seat 520 on the annular slide rail.

[0049] In this embodiment, Figure 1-7 As shown, the stirring mechanism includes a plurality of stirring components, which are arranged side by side in sequence along the length direction of the first stirring arm 410 and can stir the water in the annular groove 230 at the same time.

[0050] In this way, by providing a plurality of stirring components, the water at different radial positions of the annular groove portion 230 can be stirred more fully, further approaching the actual water mixing degree, thereby improving the test precision and accuracy.

[0051] In this embodiment, Figure 1-7 As shown, the stirring assembly includes a stirring rod 610 and a stirring fan 620. One end of the stirring rod 610 is fixedly connected to the first stirring arm 410, and the other end extends downward to the bottom of the annular groove 230. There are multiple stirring fans 620, and the multiple stirring fans 620 are arranged in sequence on the stirring rod 610 along the axial direction of the stirring rod 610.

[0052] In this way, by setting the stirring rod 610 and the stirring fan 620, the stirring rod 610 can control the depth of the stirring fan 620 in a diversified manner, and multiple stirring fans 620 can stir water bodies of different depths at the same time, further improving the adequacy of stirring.

[0053] During implementation, the stirring fan 620 includes a connecting shaft and fan blades. The connecting shaft is coaxially fixed to the stirring rod 610. There are two fan blades that are relatively fixedly connected to the two side edges of the connecting shaft.

[0054] In this embodiment, Figure 1-7 As shown, it also includes a second supporting arm 320, which is fixedly connected to the central rotating shaft 100 and is arranged opposite to the first supporting arm 310. The second supporting arm 320 is also provided with the supporting mechanism, and the supporting mechanism on the second supporting arm 320 is arranged opposite to the supporting mechanism on the first supporting arm 310. It also includes a second stirring arm 420, which is fixedly connected to the central rotating shaft 100 and is arranged opposite to the first stirring arm 410. The second stirring arm 420 is also provided with the stirring mechanism, and the stirring mechanism on the second stirring arm 420 is arranged opposite to the stirring mechanism on the first supporting arm 310.

[0055] In this way, by setting the second carrying arm 320, the second carrying arm 320 can be operated together with the first carrying arm 310, and two concrete component tests can be performed simultaneously, thereby improving the efficiency of the impact and abrasion test. At the same time, by setting the second stirring arm 420, the second stirring arm 420 can be operated together with the first stirring arm 410, thereby improving the stirring effect on the water body and stirring more fully.

[0056] During implementation, the inner and outer side walls of the annular groove 230 are both made of transparent tempered glass. In this way, by setting the inner and outer side walls of the annular groove 230 as transparent tempered glass, it is convenient to observe the test status.

[0057] Working principle: The impact and abrasion test unit uses structural movement instead of water flow movement to simulate the abrasion and impact of gravel-containing water flow on the test piece. The gravel and water are evenly mixed through the stirring mechanism, and the bearing mechanism and concrete components move in the gravel-containing water body under the rotation of the central rotating shaft 100 and interact with the gravel. The test is carried out in a cycle without the need for additional water or sand. The movement speed can be adjusted by the rotation speed of the central rotating shaft 100, and the impact and abrasion simulation under different water flow speeds can be realized, and simulation tests of two concrete components can be carried out at the same time.

[0058] Test run before the test: Before the test, check that all parts are connected reliably, close the outlet, add water and sand / gravel of the target ratio into the annular groove 230, turn on the power, close the first switch, and the stirring rod 610 drives the fan blades to start rotating and stir the gravel evenly. Close the second switch, the central shaft 100 starts gradually, and the initial speed runs at a low speed to ensure that the first bearing arm 310 drives the support seat 520 to rotate at a uniform speed and the gravel is stirred evenly. After normal operation, the speed of the central shaft 100 gradually increases slowly until it reaches the test speed and stabilizes. Maintain the test speed for 10 minutes, then disconnect the second switch, and the central shaft 100 gradually decelerates until it stops. After the central shaft 100 stops rotating and stabilizes, disconnect the first switch, and the stirring rod 610 gradually stops stirring.

[0059] Test piece test: anchor the two concrete components to be tested on the support seat 520 with bolts, and gradually open the primary and secondary switches, the stirring rod 610 and the central shaft 100 to ensure that the test piece rotates smoothly and reaches the test speed. During the test, monitor the torque of the first bearing arm 310 and the first stirring arm 410, and disconnect the secondary and primary switches respectively when the set threshold is exceeded. After the test time is reached, turn off all switches and disconnect the power supply. After the rotation stops, remove the anchor bolts and concrete components, open the outlet, discharge the water and gravel in the annular groove 230, and clean the annular groove 230.

[0060] The annular groove 230 and the abrasion test unit can simulate the abrasion of media such as water flow, sand and boulders on bridge pier components. Compared with the existing standard methods, the influence of boulders has been added, the test conditions are closer to the actual environment, and the authenticity of the test results is greatly improved, forming a set of concrete anti-abrasion test equipment that can be used for material performance research, equipment performance verification, and structural design analysis.

[0061] The power unit is installed on the power tank section 220, and the power unit includes a water pump 700 and a filter. The water pump 700 is used to control the water flow power in the circulating water tank. At the same time, the working condition simulation of different water depths and flow rates can be achieved by adjusting the number and power of the water pumps 700.

[0062] Both ends of the power tank section 220 are provided with drainage ports and drainage grooves for draining the water in the circulating water tank.

[0063] The deep trench scour test unit and the water flow seismic coupling test unit are respectively installed on two test trench sections 210. The deep trench scour test unit includes a deep sand trench 800 arranged on a corresponding test trench section 210. Mud and sand are placed in the deep sand trench 800 to simulate the scouring environment of deep trench mud and sand. During the test, the concrete component is placed in the deep sand trench 800 to simulate the scouring of the concrete component by the mud and sand.

[0064] The water flow seismic coupling test unit includes a closed retaining wall 910, a partition 920, a third baffle 930, a seismic simulation platform 940 and a waterproof membrane 950. The closed retaining wall 910 is arranged on the corresponding test slot section 210 and is connected to the test slot section 210. There are two partitions 920, which are relatively detachably installed in the closed retaining wall 910 to separate the closed retaining wall 910. The two partitions 920 enclose a shallow sand channel, which has the same length direction as the test pipe section and is connected to the test pipe section. There are two third baffles 930, which are respectively connected and arranged at At both ends of the shallow sand channel connected to the test pipe section, the third baffle 930 can be removed from the test pipe section. A shallow sand trough 960 is provided at the bottom of the shallow sand channel. The earthquake simulation platform 940 is provided below the bottom surface of the shallow sand trough 960 to apply vibration to the bottom surface of the shallow sand trough 960 to simulate the earthquake environment. The waterproof membrane 950 is coated on the outer wall of the shallow sand trough 960 and connects the shallow sand trough 960 and the earthquake simulation platform 940. The waterproof membrane 950 can be elastically retracted and bear a certain water pressure to ensure that the earthquake simulation platform 940 moves within the allowable range and prevent water leakage. The shallow sand trough 960 is a detachable steel sand trough, anchored on the earthquake simulation platform 940, and used when simulating the scouring environment.

[0065] The water flow earthquake coupling test unit can simulate the individual disasters of earthquake, water pressure and shallow trough scouring, as well as the three coupled disasters of dynamic water and earthquake coupling, static water and earthquake coupling, and scouring and earthquake coupling. The implementation scheme of coupled disasters is as follows:

[0066] Dynamic water and earthquake coupling: remove the first baffle 240 and the third baffle 930, install the second baffle 250 and the partition 920, turn on the power unit until the water flow rate in the middle of the partition 920 is stable and reaches the test value, and start the earthquake simulation platform 940 to start the test.

[0067] Hydrostatic and seismic coupling: remove the partition 920, install the third baffle 930, inject water into the system until the water depth reaches the required level, and start the seismic simulation platform 940 to start the test.

[0068] Scour and earthquake coupling: remove the first baffle 240 and the third baffle 930, install the second baffle 250, the partition 920 and the shallow sand trough 960, turn on the power unit until the water flow velocity in the middle of the partition 920 stabilizes and reaches the test value, start the earthquake simulation platform 940 to start the test.

[0069] The existing water flow and earthquake coupling usually arranges a vibration table in a pool, resulting in a low water flow velocity acting on the structure. Therefore, it is mostly used to simulate low-speed ocean currents, but it is difficult to simulate inland river flood conditions. In addition, a test requires a huge amount of water, has a low water utilization rate, and is costly. The innovative water flow and earthquake coupling test unit solves the problem that the existing system cannot simulate high-speed water flow, and can realize the coupling test of deep-water static water and earthquake.

[0070] In the scouring and earthquake coupling test, the separation method is currently mostly used, that is, firstly, the scouring test of the structure is carried out in the corresponding test trough section 210, and then the vibration test of the structure is carried out on the earthquake simulation platform 940 based on the measured length of the component after scouring, so as to evaluate the impact of scouring on the seismic performance of the structure. In fact, when the structure encounters an earthquake in the riverbed, the riverbed is disturbed by the earthquake, which will cause the scouring to be further aggravated, and the existing separation method is difficult to simulate accurately. The scouring and earthquake coupling test method has been innovated. Through the sunken earthquake simulation platform 940 and the shallow sand trough 960 used for scouring, the scouring and earthquake coupling test is realized, which solves the problem that the existing test method cannot carry out coupling tests at the same time.

[0071] The implementation plan of the deep tank scour test unit is: close all drain outlets, remove the first baffle 240 and the third baffle 930, install the second baffle 250 and the partition 920, install the structural model in the shallow sand tank 960, inject the required amount of water into the circulating water tank, turn on the power unit, and the water in the circulating water tank begins to flow until a stable flow rate is reached to achieve scour simulation of the structure.

[0072] The above are only preferred implementations of the present invention. It should be pointed out that a number of modifications and improved technical solutions made by those skilled in the art without departing from the technical solution should also be deemed to fall within the scope of protection required by the claims.

Claims

1. Multifunctional simulation test system for structural water disasters, characterized by: It includes a circulating water tank, a power unit, a deep tank scour test unit, a water flow seismic coupling test unit and an abrasion test unit. The circulating water tank includes a U-shaped tank portion and an annular tank portion that are circulated and connected. The power unit, the deep tank scour test unit and the water flow seismic coupling test unit are sequentially installed on the U-shaped tank portion. The power unit is used to control the water flow power in the circulating water tank. The deep tank scour test unit is used to simulate the scouring environment of deep tank sediment. The water flow seismic coupling test unit is used to simulate the disaster environment of various water flow states coupled with earthquakes. The abrasion test unit is installed on the annular tank portion to simulate the impact environment of gravel-containing water flow on the annular tank portion.

2. The multifunctional simulation test system for structural water disasters according to claim 1 is characterized in that: The U-shaped groove portion includes two test groove sections and one power groove section, the two test groove sections are arranged opposite to each other, each of the test groove sections includes opposite power ends and a first docking end, the two ends of the power groove section are respectively connected to the two power ends, and the annular groove portion is provided with two opposite second docking ends, the two first docking ends are respectively connected to the two second docking ends, and the impact and grinding test unit is installed in the middle of the ring of the annular groove portion.

3. The multifunctional simulation test system for structural water disasters according to claim 2 is characterized in that: The impact and abrasion test unit includes a central rotating shaft, a first bearing arm and a first stirring arm. The central rotating shaft is rotatably arranged vertically at the center of the annular groove portion, and the top of the central rotating shaft extends upwardly from the groove top surface of the annular groove portion. The first bearing arm includes a first end and a second end relative to each other. The first end is fixedly connected to the top of the central rotating shaft, and the second end extends radially outwardly from the central rotating shaft to just above the notch of the annular groove portion. A bearing mechanism is arranged on the second end, and the bearing mechanism extends downward into the annular groove portion. A concrete component is carried on the bearing mechanism. There is a rotation angle between the first stirring arm and the first bearing arm. The first stirring arm includes a third end and a fourth end relative to each other. The third end is fixedly connected to the top of the central rotating shaft, and the fourth end extends radially outwardly from the central rotating shaft to just above the notch of the annular groove portion. A stirring mechanism is arranged on the fourth end, and the stirring mechanism extends downward into the annular groove portion for stirring the water in the annular groove portion.

4. The multifunctional simulation test system for structural water disasters according to claim 3 is characterized in that: The bearing mechanism includes a support arm and a supporting seat, the support arm includes opposite connecting ends and a bearing end, the connecting end is connected to the second end of the first bearing arm, the bearing end extends downward to the bottom of the annular groove, and the supporting seat is installed on the bearing end for bearing the concrete member.

5. The multifunctional simulation test system for structural water disasters according to claim 4 is characterized in that: An annular track is arranged on the bottom surface of the annular groove portion, and the annular track is arranged coaxially with the annular groove portion. A sliding groove is opened at the bottom of the support seat, and the support seat is slidably arranged on the annular track through the sliding groove.

6. The multifunctional simulation test system for structural water disasters according to claim 5 is characterized in that: The annular track includes a base rail and a convex rail. The base rail is fixed to the bottom surface of the annular groove, and the convex rail is fixed to the middle of the top surface of the base rail and is coaxially arranged with the base rail. The inner contour of the cross section of the sliding groove is the same as the outer contour of the cross section of the annular track.

7. The multifunctional simulation test system for structural water disasters according to claim 6 is characterized in that: A sliding gap is provided between the bottom surface of the support seat and the bottom surface of the annular groove portion, a dustproof brush is provided in the sliding gap, and the dustproof brush is fixedly connected to the bottom surface of the support seat.

8. The multifunctional simulation test system for structural water disasters according to claim 6 is characterized in that: The stirring mechanism comprises a plurality of stirring components, which are arranged in parallel in sequence along the length direction of the first stirring arm and can stir the water in the annular groove at the same time.

9. The multifunctional simulation test system for structural water disasters according to claim 8 is characterized in that: The stirring assembly includes a stirring rod and a stirring fan. One end of the stirring rod is fixedly connected to the first stirring arm, and the other end extends downward to the bottom of the annular groove. There are multiple stirring fans, and the multiple stirring fans are arranged in sequence on the stirring rod along the axial direction of the stirring rod.

10. The multifunctional simulation test system for structural water disasters according to any one of claims 3 to 9, characterized in that: It also includes a second bearing arm, which is fixedly connected to the central rotating shaft and arranged opposite to the first bearing arm. The second bearing arm is also provided with the bearing mechanism, and the bearing mechanism on the second bearing arm is arranged opposite to the bearing mechanism on the first bearing arm. It also includes a second stirring arm, which is fixedly connected to the central rotating shaft and arranged opposite to the first stirring arm. The second stirring arm is also provided with the stirring mechanism, and the stirring mechanism on the second stirring arm is arranged opposite to the stirring mechanism on the first bearing arm.

Images