JP2021529936A - Visualization interface direct shearing machine that can consider temperature and permeation flow action - Google Patents

Abstract

The present invention discloses a visualization interface direct shearing machine that can consider temperature and permeation flow action, including a direct shearing machine body, a removable permeation flow module, a temperature action module and a visualization high-definition particle capture module. In the direct shearing machine main body according to the present invention, it is possible to realize an interface direct shear test at a constant stress, constant rigidity, and constant volume normal boundary by using two servo systems in the shear direction and the normal direction. Regarding the normal boundary conditions of the direct shearing machine body, equal volume, equal stress, and equal rigidity normal boundary control are realized mainly for the displacement and force signals fed back by the normal direction servomotor.

Description

The present invention relates to a temperature control module, a permeation flow module and a visualization high-definition particle capture module, and more particularly to a visualization interface direct shearing machine capable of considering temperature-shear and permeation flow-shear effects. The direct shearing machine can not only realize constant stress, constant rigidity, and constant volume normal interface, but can also consider soil erosion-shearing action and temperature-shearing action, and can be combined with visualization high-definition capturing means. Therefore, it is possible to deeply study the shear strength characteristics before and after the infiltration flow is generated in the soil at the interface of the structure and after the temperature cycle, and the micromechanism of particle movement at the interface.

In marine processes, suction anchors are widely used due to their wide range of application, short construction time, high reusability and low cost. Subsidence mounting is an important step in the suction bucket foundation construction process. In the mounting process, the suction bucket sucks water in the bucket with a water pump to form a negative pressure, and the pressure difference between the inside and outside of the bucket causes the suction bucket foundation to sink to the design altitude. During pumping infiltration, a permeation flow field is formed near the walls of the suction bucket, and fine particles in the intermittent grading soil are extremely likely to be eroded by the action of osmotic force, increasing the permeation flow rate of soil particles. As a result, the interfacial strength between the soil body and the wall of the bucket decreases, and its actual pull-out strength becomes lower than the design value.

In the marine environment, the temperature difference between day and night is large, and the temperature gradient is large from the sea plane to the deep sea area. Currently, the geothermal energy pile can not only receive the superstructure load but also is widely used as a longitudinal heat exchange system. It can also be applied. A temperature field is formed inside the energy pile due to the thermal action, and when thermal expansion and cold contraction occur, a stress field is formed inside the pile body, and a stress field is further formed inside the pile body. It shows different characteristics from the normal pile-soil interface due to the influence of factors such as the surrounding soil and the restraint of the upper and lower stages.

In the actual process, it is well related to the evaluation and measurement of the change in interfacial shear behavior before and after the soil and structure are subjected to permeation flow or temperature action, however, at present, the effect of permeation flow or temperature on the interfacial shear strength. There is no relevant laboratory equipment or technology capable of detecting and evaluating.

The interfacial direct shear machine is an excellent interfacial strength measuring device, and is often used because of its simple operation and accurate measurement data. Currently, domestic and foreign direct shear machines are gradually developing in the direction of larger size, integration, and automation, the functions of test equipment are complete, and loading and data collection are almost automated. .. However, at present, there are still few studies and instruments on the motion movement of soil particles of interfacial shear, the formation of shear zones, the evolution of physical states and the local deformation mechanism.

In view of the above background, in order to better study the effects of soil permeation flow-shearing action and temperature-shearing action on interfacial shearing behavior, the present invention presents a visualization interface direct that can consider temperature and permeation flow action. Provide a shearing machine.

In view of the lack of prior art, the present invention provides a visualization interface direct shearing machine that can consider temperature and permeation flow effects. In the direct shearing machine, the pipeline is destroyed by the change in shear behavior with the steel interface and the flushing of the soil around the seabed oil gas pipeline after the soil inside and outside the ocean suction bucket generates a seepage flow. Not only can this be simulated, but changes in the shear strength between the structure and the soil interface can be examined by the action of temperature. The present invention effectively improves the functionality and convenience of the equipment by integrating the temperature action and the permeation flow action into one interface direct shearing machine.

The following technical proposals are adopted in the present invention.
It is a visualization interface direct shearing machine that can consider temperature and permeation flow action.
Includes direct shearing machine body, removable osmotic flow module, temperature action module, and visualization high definition particle capture module.
The direct shearing machine body includes a pedestal, a shearing direction servomotor, a rigid reaction force frame, a servo control system, and horizontal slide rails, sliders, and removable pseudo-interfacial zinc-plated steel plates provided on the pedestal in order from bottom to top. The rigid reaction force frame includes a lidless bath box, a vertically movable lid plate, a carrier plate, and a normal direction servomotor, and the normal direction servomotor is provided on a rigid reaction force frame. Vertical slide rails are further provided on the two side surfaces of the rigid reaction force frame, and vertical position limiting control valves are provided at the connection points between the vertically movable lid plate and the vertical slide rails. Is provided, and a square transparent position limiting ring is provided in the open bath box. The square transparent position limiting ring has a hollow inside, and the top thereof is connected to the bottom of a lid plate that can be moved in the vertical direction. And, a test soil is loaded inside, a force sensor is provided between the slider and the shear direction servomotor, the slider can move horizontally along the horizontal slide rail, and the servo control system is a servo control system. It is used to control the shear direction servo motor and the normal direction servo motor, and the shear direction servo motor and the normal direction servo motor are used to control the horizontal movement of the slider and the vertical movement of the square transparent position limiting ring, respectively. Used, in this way, the interfacial shear of the test soil can be simulated,
The removable osmotic flow module includes a water supply line, a drainage line and an osmotic flow rate adjustment control system, in which the water supply line is a water storage tank, a first valve, a water pressure sensor, an electromagnetic flow meter and a square transparent position. The restriction ring is connected, and the drainage line is connected to the square transparent position limiting ring, the second valve, the particle collector, the water pump, and the water storage tank in this order, and the side of the square transparent position limiting ring close to the water supply line. Is provided with a water-permeable stone that rectifies the water supply and allows it to flow into the test soil uniformly and stably, and a round hole is uniformly opened on the side of the square transparent position limiting ring near the drainage pipe. A clamp plate with two holes is provided on the surface perpendicular to the osmotic flow direction on that side, and the round hole and the hole in the clamp plate have the same hole diameter, and thus the two clamps. By opening and closing the plate symmetrically to both sides perpendicular to the permeation flow path, the permeation flow hole diameter can be controlled to change within the required range (in the hole in the clamp plate and the square transparent position limiting ring). The permeation flow hole diameter is 0 when completely displaced from the hole, and the permeation flow hole diameter is maximum when the hole in the clamp plate and the hole in the square transparent position limiting ring are completely overlapped), the outside of the clamp plate. Is provided with an impermeable plate, a closed chamber is formed between the two, and the closed chamber is connected to the drainage pipe.
The temperature action module includes an S-shaped copper tube, a temperature sensor, a temperature adjustment control system, and a water storage tank, and the S-shaped copper tube is embedded in the removable pseudo-interfacial zinc-plated steel plate and is a water tube. The temperature adjustment control system is used to control the temperature of the circulating water in the water storage tank, and the S-shaped copper tube heats the uncovered bath box with the circulating water to control the temperature of the circulating water. The sensor is used to measure the temperature inside the uncovered bath box and to feed the temperature back to the temperature control control system for regulation.
The visualization high-definition particle capture module includes an underwater high-definition camera and an image processing system, and the underwater high-definition camera is provided on the inner wall of the uncovered bath box to monitor the movement state of the earth body at the interface position. Used,
The servo control system, the osmotic pressure flow rate adjustment control system, the temperature adjustment control system, and the image processing system are integrated into one computer for control.
At a location 2 mm away from the removable pseudo-interfacial galvanized steel sheet of the square transparent position limiting ring, the shear wave velocity of the soil in various states is detected in the direction perpendicular to the shearing direction, and the soil is sheared (eroded). ) Is provided with a pair of bending elements for evaluating the shear modulus.

In the above technical proposal, the slider is further connected to a removable pseudo-interfacial galvanized steel sheet via a nut, and the square transparent position limiting ring is connected to a vertically movable lid plate via a nut. The distance between the square transparent position limiting ring and the removable pseudo-interfacial galvanized steel sheet can be adjusted by the directional position limiting control valve, the vertical slide rail and the vertically movable lid plate.

Further, at the center of the bottom of the carrier plate, an earth pressure gauge for comparing the magnitude of the force in the normal direction with the force sensor is provided.

Further, the permeation flow module can apply a permeation flow pressure of 1 to 500 kPa and a flow rate of 0 to ^{20 cm 3} / s to the soil body by the permeation flow pressure adjustment control system, the water supply line and the drain line.

Further, the shear direction servomotor and the normal direction servomotor can both provide a shear force of 0 to 1 MPa and a normal direction pressure.

In addition, the particle collector includes a set of standard sieves for determining changes in total erosion and particle grading as the pore size decreases from top to bottom.

In addition, the temperature sensor is linearly and uniformly placed on a removable quasi-interface galvanized steel sheet and is used to verify temperature uniformity at the steel-sand interface in an uncovered water bath box to achieve temperature circulation. The temperature range is 0 to 70 ° C.

Further, the rectangular permeable stone is fitted into the square transparent position limiting ring, and the fitting depth is half the wall thickness on the square transparent position limiting ring side.

The direct shear machine body according to the present invention can realize an interface direct shear test at a constant stress, constant rigidity, and constant volume normal boundary by utilizing two servo systems in the shear direction and the normal direction. The normal boundary condition of the interface direct shearing machine main body realizes equal volume, equal stress, and equal rigidity normal boundary control with respect to the displacement and force signals fed back mainly by the normal direction servomotor. Here, the equal volume and equal stress control is to maintain the displacement and the axial force reading so as not to change in the shearing process, and the equal rigidity control is a rigidity calculation formula mainly by actually measuring the vertical displacement of the soil. Adjust the pressure in the normal direction with to realize the equi-rigid boundary condition.

When performing a soil permeation flow-shear test, first adjust the normal boundary conditions and then adjust the position of the square transparent position limiting ring by driving a vertically movable lid plate with a normal direction servomotor. And make it close to the bottom of the uncovered bath box. A closed circuit is formed by connecting the water storage tank, the first valve, the water pressure sensor, the electromagnetic flow meter, the square transparent position limiting ring, the second valve, the particle collector, the water pump, and the osmotic flow rate adjustment control system in order according to the pipeline. , Perform a sealability test to ensure good watertightness. The flow rate and osmotic flow pressure are adjusted to fixed values, the hole diameter of the square transparent position limiting ring is adjusted according to the particle size of the sample, and the first valve and the second valve are opened to perform the osmotic flow of the soil. After the permeation flow is completed, remove the water supply and drainage pipes in order, adjust the position of the square transparent position limiting ring again with the vertically movable lid plate, and slit between it and the bottom of the open bath box. Open, thus avoiding the friction between the ring and the bottom of the open bath box affecting the accuracy of the test. After that, interfacial shear is performed, and the change in interfacial strength between the soil and the structure is examined before and after erosion. Before and after the test, further shear wave velocity measurement (simulating the interfacial shear of the test soil with each of the shear direction servomotor and the normal direction servomotor) may be performed, and in this way, the erosion action is the soil shear. The effect on rigidity can be examined.

When performing a soil temperature-shear test, first adjust the normal boundary conditions, connect the S-shaped copper tube, temperature sensor, temperature control control system and water storage tank, and two clamps on the side of the square transparent position limiting ring. Close the plate, pour water into the open bath box until it is submerged to the top of the sand sample, control the temperature with a computer, and after temperature action, test soil with interfacial shear (shear direction servo motor and normal direction servo motor respectively). (Simulate the interfacial shear of the body) to explore the interfacial shear behavior of soil and structure under constant temperature action, and to explore the change of interfacial shear behavior of soil and structure after temperature circulation. be able to. Similarly, shear wave velocities are measured using a bending element, and changes in soil shear rigidity before and after temperature-shearing action are compared.

In addition, the visualization high-definition particle capture module can trace particle displacement, shear zone formation, physical state evolution, and local deformation features at the interface, allowing the test phenomenon to be interpreted from a micromechanism. can. High-precision sensors are used for all of the various sensors according to the present invention.

The present invention has the following advantages.
The visualization interface direct shearing machine that can consider the temperature and permeation flow action of the present invention considers the soil permeation flow action using the permeation flow module, and simulates the effect of temperature on the interfacial shear using the temperature action module. In addition, a visualization high-definition particle capture module is used to collect the evolution of the motion and physical states of soil particles at the interface. The multi-normal constraining module can provide real-time state quantity monitoring of soil permeation flow-shear or temperature-shear action, taking into account the actual stress state of the soil. The present invention integrates the temperature action and the permeation flow action into one interface direct shearing machine, and effectively improves the functionality and convenience of the equipment.

It is a front view of the whole apparatus. It is a side view of the whole apparatus. It is a top view in AA. It is a top view in BB. It is sectional drawing of the permeation flow module. It is a buried view of the S type copper tube. It is a control schematic diagram in a vertical direction of a normal direction restraint module. It is a schematic diagram of the integration of each module. It is a partial view of a square transparent position limiting ring.

The technical proposal of the present invention will be clearly and completely described with reference to the drawings.

As shown in FIG. 1, the visualization interface direct shear machine that can consider the temperature and permeation flow action according to the present invention includes the direct shear machine body 1, the removable permeation flow module 2, the temperature action module 3, and the visualization high definition. The direct shearing machine main body 1 including the particle trapping module 4 is provided on the pedestal 5, the shearing direction servomotor 6, the rigid reaction force frame 7, the servo control system 8, and the horizontal pedestal 5 in order from bottom to top. The rigid reaction force frame includes a slide rail 9, a slider 10, a removable pseudo-interfacial zinc-plated steel plate 11, an uncovered bath box 12, a vertically movable lid plate 13, a carrier plate 14, and a normal servomotor 15. 7 is provided on the pedestal 5, the normal direction servomotor 15 is provided on the rigid reaction force frame 7, and vertical slide rails 16 are further provided on the two side surfaces of the rigid reaction force frame 7. A vertical position limiting control valve 17 is provided at a connection point between the vertically movable lid plate 13 and the vertical slide rail 16, and a square transparent position limiting ring 18 is provided in the uncovered bath box 12. The center positions of both planes are the same before shearing. The square transparent position limiting ring 18 has a hollow inside, a test earth body is loaded inside, and the top thereof is connected to the bottom of a lid plate 13 that can move in the vertical direction. The distance between the square transparent position limiting ring 18 and the removable pseudo-interfacial zinc-plated steel plate 11 is adjusted by the vertical slide rail 16 and the vertically movable lid plate 13, and the slider 10 and the shear direction servomotor 6 are brought into contact with each other. A high-precision force sensor 19 is provided between them, the slider 10 can move horizontally along the horizontal slide rail 9, and the servo control system 8 controls the shear direction servomotor 6 and the normal direction servomotor 15. The shear direction servomotor 6 and the normal direction servomotor 15 control the horizontal movement of the slider 10 and the vertical movement of the square transparent position limiting ring 18, respectively, thereby performing interfacial shear of the test soil. Can be simulated.

The removable permeation flow module 2 includes a water supply line 20, a drainage line 21, and an osmotic pressure flow rate adjustment control system 22, and the water supply line 20 includes a water storage tank 23, an osmotic pressure flow rate adjustment control system 22, and so on. The first valve 24, the water pressure sensor 25, the electromagnetic flow meter 26, and the square transparent position limiting ring 18 are connected, and the square transparent position limiting ring 18, the second valve 27, and the particle collecting device 28 are connected to the drain pipe line 21 in this order. A water pump 29 and a water storage tank 23 are connected, and one round hole is opened at the center position of the bottom of the square transparent position limiting ring 18 on the side close to the water supply pipe 20, and the round hole is the water supply pipe. A water permeable stone 43 that is connected to 20 and is close to the test soil on this side is provided to fit into the square transparent position limiting ring 18 on this side, rectifies the water supply, and uniformly and stably test soil. Used for flowing into the body, the fitting depth of the water permeable stone 43 is half the wall thickness of the square transparent position limiting ring 18, and is on the side of the square transparent position limiting ring 18 close to the drain pipe 21. A round hole having a hole diameter of 2 mm is uniformly formed, and a clamp plate 30 with two holes is provided on a surface perpendicular to the permeation flow direction on this side, and the diameter of the round hole in the clamp plate 30 is 2 mm. The two clamp plates can be opened and closed symmetrically to the outside perpendicular to the permeation flow path, thereby controlling the permeation flow hole diameter to change from 0 to 2 mm, and the outside of the clamp plate 30. A water-impermeable plate is provided in the water-permeable plate, a closed chamber 42 is formed between the two, and a drain pipe 21 is connected to the bottom of the closed chamber 42.

The temperature action module 3 includes an S-type copper tube 31, a temperature sensor 32, a temperature adjustment control system 33, and a water storage tank 23, and the S-type copper tube 31 is embedded in the removable pseudo-interfacial zinc-plated steel plate 11. And connected to the water storage tank 23 via a water pipe, the temperature adjustment control system 33 is used to control the temperature of the circulating water in the water storage tank 23, and the S-shaped copper pipe 31 is an uncovered water bath with circulating water. The box 12 is heated, the temperature sensor 32 measures the temperature inside the uncovered water bath box 12, and the measured temperature is fed back to the temperature adjustment control system 33 for adjustment.

The visualization high-definition particle capture module 4 includes an underwater high-definition camera 34 and an image processing system 35, and the underwater high-definition camera 34 is provided on the inner wall of the uncovered bath box 12, and the motion state of the earth body at the interface position. The image processing system 35 processes an image taken by the underwater high-definition camera 34.

The servo control system 8, the osmotic pressure flow rate adjustment control system 22, the temperature adjustment control system 33, and the image processing system 35 are integrated into one computer 36 to perform control.

A pair of bending elements 37 are provided in the direction perpendicular to the shearing direction at a position 2 mm away from the removable pseudo-interfacial galvanized steel sheet 11 in the square transparent position limiting ring 18, and the soil shear waves in various states are provided. Used to detect velocity.

The slider 10 is connected to a removable pseudo-interfacial galvanized steel sheet 11 via a nut 38, and the square transparent position limiting ring 18 is connected to a vertically movable lid plate 13 via a nut 39. The uncovered water bath box 12 is welded to a removable pseudo-interfacial galvanized steel sheet 11. A soil pressure gauge 40 is provided at the center of the bottom of the carrier plate 14 and is used to compare the magnitude of the force in the normal direction with the force sensor 19. The osmotic flow pressure applied to the soil by the osmotic pressure flow rate adjustment control system 22 is 1 to 500 kPa, and the flow rate is 0 to 20 cm ³ / s. The shear force and the normal direction pressure provided by the shear direction servomotor 6 and the normal direction servomotor 15 are 0 to 1 MPa. The particle collector 28 includes a set of standard sieves 41, the pore diameters of which are 2 mm, 1 mm, 0.5 mm, 0.25 mm, 0.1 mm, 0.075 mm in order from top to bottom, and total erosion. Used to identify changes in quantity and particle grading. The temperature sensor 32 is uniformly and linearly arranged on the removable pseudo-interfacial galvanized steel sheet 11, verifies the temperature uniformity at the steel-sand interface in the uncovered water bath box 12, and adjusts the temperature in real time. It feeds back to the temperature adjustment control system 33, and the temperature range is 0 to 70 ° C.

When performing a soil permeation flow-shear test, first, the normal boundary condition is adjusted, and the normal direction servomotor 15 is driven to move the lid plate 13 that can move in the vertical direction up and down, so that the square is transparent. Adjust the position of the position limiting ring 18 so that it is in close contact with the bottom of the uncovered bath box 12. Water storage tank 23, first valve 24, water pressure sensor 25, electromagnetic flow meter 26, square transparent position limiting ring 18, second valve 27, particle collecting device 28, water pump 29, and osmotic flow rate adjustment control according to the pipeline. The system 22 is connected to form a closed circuit, and a sealing test is performed to ensure good watertightness. The flow rate and osmotic flow pressure are adjusted to fixed values, and the hole diameter of the square transparent position limiting ring 18 and the hole diameter of the clamp plate 30 (the osmotic flow hole diameter is controlled by controlling the movement of the clamp plate) according to the sample particle size. After adjustment, the first valve 24 and the second valve 27 are opened to perform osmotic flow. After the permeation flow is completed, the water supply pipe line 20 and the drainage pipe line 21 are removed in order, and the position of the square transparent position limiting ring 18 is adjusted again via the lid plate 13 that can be moved in the vertical direction, and the open bath box 12 is adjusted. By opening a slit between the bottom and the bottom of the open bath box 12, it is possible to prevent the friction between the position limiting ring 18 and the bottom of the open bath box 12 from affecting the test accuracy. After that, interfacial shearing (simulating the interfacial shear of the test soil with the shear direction servomotor and the normal direction servomotor) is performed again, and the change in the interfacial strength between the soil body and the structure before and after erosion is examined. Further shear wave velocities may be measured before and after the test, which allows the effect of erosion on soil shear stiffness.

When performing the soil temperature-shear test, first adjust the normal boundary conditions, connect the S-shaped copper tube 31, the temperature sensor 32, the temperature control control system 33, and the water storage tank 23, and connect the square transparent position limiting ring. If the two clamp plates on the side are closed, water is poured into the open bath box 12 until the top of the sample is submerged, the temperature is controlled by a computer, and after the temperature is applied, interfacial shearing is performed (shear direction servomotor). (Simulate the interfacial shear of the test soil with a normal direction servomotor), the interfacial shear behavior of the soil and the structure under constant temperature action can be explored, and after the temperature circulation, the soil and the structure Changes in interfacial shear behavior can be explored. Similarly, the shear wave velocity can be measured using the bending element 37, and the changes in the soil shear rigidity before and after the temperature-shearing action can be compared.

1 Direct shear machine body, 2 Detachable permeation flow module, 3 Temperature action module, 4 Visualized high-definition particle capture module, 5 Pedestal, 6 Shear direction servo motor, 7 Rigid reaction force frame, 8 Servo control system, 9 Horizontal slide Rails, 10 sliders, 11 removable pseudo-interfacial zinc-plated steel plates, 12 uncovered bath boxes, 13 vertically movable lid plates, 14 carrier plates, 15 normal servomotors, 16 vertical slide rails, 17 vertical positions Limit control valve, 18 square transparent position limit ring, 19 force sensor, 20 water supply line, 21 drain line, 22 osmotic pressure flow control system, 23 water storage tank, 24 1st valve, 25 water pressure sensor, 26 electromagnetic flow meter , 27 2nd valve, 28 particle collector, 29 water pump, 30 clamp plate, 31 S type copper tube, 32 temperature sensor, 33 temperature adjustment control system, 34 underwater high definition camera, 35 image processing system, 36 computer, 37 Bending element, 38 nuts, 39 nuts, 40 soil pressure gauges, 41 standard sieves, 42 closed chambers, 43 water permeable stones.

Claims (8)

It is a visualization interface direct shearing machine that can consider the temperature and permeation flow action including the direct shearing machine body (1).
It further includes a removable osmotic flow module (2), a temperature action module (3), and a visualization high definition particle capture module (4).
The direct shearing machine main body (1) includes a pedestal (5), a shearing direction servomotor (6), a rigid reaction force frame (7), a servo control system (8), and a pedestal (5) in order from bottom to top. ), A horizontal slide rail (9), a slider (10), a removable pseudo-interfacial zinc-plated steel plate (11), an uncovered bath box (12), a vertically movable lid plate (13), and a carrier plate (14). ) And the normal direction servomotor (15), the rigid reaction force frame (7) is provided on the pedestal (5), and the normal direction servomotor (15) is the rigid reaction force frame (7). ), And a vertical slide rail (16) is further provided on the two side surfaces of the rigid reaction force frame (7), and the vertical movable lid plate (13) and the vertical slide rail (16) are provided. ) Is provided with a vertical position limiting control valve (17), and a square transparent position limiting ring (18) is provided in the uncovered bath box (12). In (18), the inside is hollow, the test soil is loaded, the top thereof is connected to the bottom of the vertically movable lid plate (13), and the slider (10) and the shear direction servomotor are connected. A force sensor (19) is provided between the force sensor (19) and the servo control system (8) is used to control the shear direction servomotor (6) and the normal direction servomotor (15). ,
The removable permeation flow module (2) includes a water supply line (20), a drain line (21), and an osmotic pressure flow rate adjustment control system (22). A water storage tank (23), an osmotic pressure flow adjustment control system (22), a first valve (24), a water pressure sensor (25), an electromagnetic flow meter (26), and a square transparent position limiting ring (18) are connected in this order. The drainage pipe (21) is connected to the square transparent position limiting ring (18), the second valve (27), the particle collecting device (28), the water pump (29) and the water storage tank (23) in this order, and the square transparent position is connected. On the side of the position limiting ring (18) close to the water supply pipe (20), a water permeable stone (43) that rectifies the water supply and allows it to flow into the test soil uniformly and stably is provided, and the square transparent position limiting A round hole is uniformly formed on the side of the ring (18) close to the drain pipe (21), and a clamp plate (30) with a hole is provided on the outside thereof. The hole in 30) and the hole diameter match, and the permeation flow hole diameter can be adjusted by controlling the movement of the clamp plate (30). An impermeable plate is provided on the outside of the clamp plate (30). A closed chamber (42) is formed between the two, and the closed chamber (42) is connected to the drainage line (21).
The temperature action module (3) includes an S-type copper tube (31), a temperature sensor (32), a temperature adjustment control system (33), and a water storage tank (23), and the S-type copper tube (31). ) Is embedded in the removable pseudo-interfacial zinc-plated steel plate (11) and connected to the water storage tank (23) via a water pipe, and the temperature adjustment control system (33) is in the water storage tank (23). Used to control the temperature of the circulating water, the S-shaped copper tube (31) heats the uncovered water bath box (12) with the circulating water, and the temperature sensor (32) is inside the uncovered water bath box (12). Used to measure the temperature of the temperature and feed the temperature back to the temperature control control system (33) for adjustment.
The visualization high-definition particle capture module (4) includes an underwater high-definition camera (34) and an image processing system (35), and the underwater high-definition camera (34) is provided on the inner wall of an uncovered bath box (12). The image processing system (35) is used to process an image taken by an underwater high-definition camera (34).
The servo control system (8), the osmotic pressure flow rate adjustment control system (22), the temperature adjustment control system (33), and the image processing system (35) are combined into one computer (36) for control. It is integrated and
In order to detect the shear wave velocity in various states in the direction perpendicular to the shearing direction at a position 2 mm away from the removable pseudo-interface galvanized steel sheet (11) of the square transparent position limiting ring (18). A visualization interface direct shearing machine capable of considering the temperature and permeation flow action, which is characterized by being provided with a pair of bending elements (37). The slider (10) is connected to a removable pseudo-interfacial galvanized steel sheet (11) via a nut (38), and the square transparent position limiting ring (18) moves vertically via the nut (39). The temperature according to claim 1, wherein the uncovered bath box (12) is connected to a possible lid plate (13) and is welded to the removable pseudo-interfacial galvanized steel sheet (11). Visualization interface direct shearing machine that can consider permeation flow action. The claim is characterized in that a soil pressure gauge (40) for comparing the magnitude of the force in the normal direction with the force sensor (19) is provided at the center of the bottom of the carrier plate (14). Visualization interface direct shearing machine that can consider the temperature and osmotic flow action according to 1. The temperature / osmotic flow action according to claim 1, wherein the osmotic flow pressure applied to the soil by the osmotic pressure flow rate adjustment control system (22) is 1 to 500 kPa, and the flow rate is 0 to 20 cm ^{3 / s.} Considerable visualization interface direct shearer. The temperature / permeation flow action according to claim 1, wherein the shear force and the normal pressure provided by the shear direction servomotor (6) and the normal direction servomotor (15) are 0 to 1 MPa. The visualization interface direct shear machine that can be considered. The particle collector (28) comprises a set of standard sieves (41) for determining changes in total erosion and particle grading as the pore size decreases from top to bottom. Visualization interface direct shearing machine that can consider the temperature and osmotic flow action according to 1. The temperature sensor (32) is linearly and uniformly arranged on the removable pseudo-interface galvanized steel sheet (11) to verify the temperature uniformity at the steel-sand interface in the uncovered water bath box (12). The visualization interface direct shearing machine used, wherein the temperature control range is 0 to 70 ° C., and the temperature / permeation flow action can be considered according to claim 1. The water-permeable stone (43) is fitted into the square transparent position limiting ring (18), and the fitting depth is half the wall thickness of the square transparent position limiting ring (18). Visualization interface direct shearing machine that can consider the described temperature and permeation flow action.

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