CN216410886U - A working condition simulation device for applying multi-field coupling action to reinforced geotechnical structures - Google Patents

Abstract

The utility model discloses a working condition simulation device for applying a multi-field coupling effect on a reinforced geotechnical structure, and solves the technical problem that an indoor large-scale dynamic triaxial test in the prior art is difficult to simulate multi-field coupling and actual boundary conditions. The working condition simulation device comprises: the supporting unit is used for supporting the reinforced geotechnical structure; the supporting unit comprises a frame, a bottom plate and side plates; the vertical loading unit is used for applying vertical dynamic load to the reinforced geotechnical structure; the vertical loading unit comprises a loading plate and a driving mechanism for driving the loading plate to vertically move; the transverse constraint unit is used for applying transverse constraint on the reinforced geotechnical structure; the transverse restraining unit comprises a restraining plate and a supporting mechanism for supporting the restraining plate; the binding plate, the bottom plate and the side plates form a box body for filling the reinforced geotechnical structure; the dry-wet cycle control unit is used for controlling the water content of the reinforced geotechnical structure; the dry-wet circulation control unit comprises a water circulation mechanism and a drying mechanism.

Description

A working condition simulation device for applying multi-field coupling to reinforced geostructures

technical field

The utility model relates to the technical field of geotechnical engineering and railway engineering, in particular to the technical field of performance research of reinforced geotechnical structures under the action of water-heat-mechanical coupling, in particular to the application of multi-field coupling to reinforced geotechnical structures Working condition simulation device.

Background technique

Geocell reinforcement, as a form of three-dimensional reinforcement device, has been widely used in many fields at home and abroad. It can improve the overall stability of the subgrade structure and reduce settlement.

At present, the common method to test the dynamic performance of the unit body of reinforced geotechnical structures is the large-scale dynamic triaxial test. Conversion is used to test dynamic indicators such as critical dynamic stress, dynamic strain, dynamic elastic modulus, and damping ratio of reinforced coarse particles. It is difficult to simulate accurately; the test materials are similar materials, and the parameters of the materials are quite different from the actual ones; the test loading methods are radial and axial loading that do not match the actual foundation force; the test can only be performed under the dynamic response of a single factor analysis, while the subgrade reinforced coarse particles are generally subject to multi-field coupling.

Utility model content

The first purpose of the present utility model is to provide a working condition simulation device that applies multi-field coupling to reinforced geotextile structures, so as to solve the technology that it is difficult to simulate multi-field coupling and actual boundary conditions in indoor large-scale dynamic triaxial tests in the prior art question.

In order to achieve the above-mentioned first objective, a first aspect of the present utility model provides a working condition simulation device for applying multi-field coupling action to a reinforced geotechnical structure. The technical solution is as follows:

A working condition simulation device that applies multi-field coupling to reinforced geotechnical structures, including: support units for supporting reinforced geotechnical structures; support units including frames, bottom plates and side panels; vertical loading units for reinforced geotechnical structures The vertical dynamic load is applied to the structure; the vertical loading unit includes the loading plate and the driving mechanism that drives the vertical movement of the loading plate; the lateral restraint unit is used to impose lateral constraints on the reinforced geotechnical structure; The support mechanism for the restraint plate to support; the restraint plate and the bottom plate and the side plate form a box for filling the reinforced geotechnical structure; the dry-wet cycle control unit is used to control the water content of the reinforced geotextile structure; the dry-wet cycle control unit includes Water circulation mechanism and drying mechanism.

The second purpose of the present utility model is to provide a performance testing system for reinforced geotechnical structures under the action of multi-field coupling, so as to solve the technical problem that the indoor large-scale dynamic triaxial test in the prior art is difficult to simulate multi-field coupling and actual boundary conditions .

In order to achieve the above-mentioned second purpose, the second aspect of the present invention provides a performance testing system of a reinforced geotechnical structure under the action of multi-field coupling. The technical solution is as follows:

A performance testing system for reinforced geotechnical structures under the action of multi-field coupling, including a working condition simulation device and a measurement device, wherein the working condition simulation device is used to simulate the working condition of applying multi-field coupling action to the reinforced geotechnical structure; The condition simulation device includes: a support unit, used to support the reinforced geotechnical structure; the support unit includes a frame, a bottom plate and a side plate; a vertical loading unit is used to apply a vertical dynamic load to the reinforced geotechnical structure; the vertical loading unit includes The loading plate and the driving mechanism for driving the vertical movement of the loading plate; the lateral restraint unit, which is used to impose lateral constraints on the reinforced geotechnical structure; the lateral restraint unit includes the restraint plate and the support mechanism for supporting the restraint plate; the restraint plate and the bottom plate and The side plate encloses a box for filling the reinforced geotechnical structure; a dry-wet cycle control unit is used to control the water content of the reinforced geotextile structure; the dry-wet cycle control unit includes a water circulation mechanism and a drying mechanism; the measuring device is used for Measure the performance of the reinforced geotextile structure under the multi-field coupling action exerted by the working condition simulation device; the measurement device includes: a first distance measuring unit for measuring the vertical displacement of the loading plate; a second distance measuring unit for measuring constraints The lateral displacement of the slab; the pressure monitoring unit, which is used to measure the pressure on the reinforced geotechnical structure; the condition monitoring unit, which is used to measure any of the acceleration, temperature and moisture content of the reinforced geotechnical structure.

The third object of the present invention is to provide a performance testing method for reinforced geotextile structures under the action of multi-field coupling, so as to solve the technical problem that the indoor large-scale dynamic triaxial test in the prior art is difficult to simulate multi-field coupling and actual boundary conditions .

In order to achieve the above third objective, a third aspect of the present utility model provides a performance testing method for a reinforced geotechnical structure under the action of multi-field coupling. The technical solution is as follows:

The performance testing method of the reinforced geotechnical structure under the action of multi-field coupling adopts the working condition simulation device of the first aspect or the performance testing system of the second aspect.

The present utility model will be further described below with reference to the accompanying drawings and specific embodiments. Additional aspects and advantages of the present invention will be set forth, in part, from the following description, and in part will become apparent from the following description, or may be learned by practice of the invention.

Description of drawings

The accompanying drawings that constitute a part of the present utility model are used to assist the understanding of the present utility model. The content provided in the accompanying drawings and the relevant descriptions in the present utility model can be used to explain the present utility model, but do not constitute inappropriateness to the present utility model. limited. In the attached image:

FIG. 1 is a schematic structural diagram of a first embodiment of a working condition simulation device for applying multi-field coupling to a reinforced geotechnical structure of the present invention.

FIG. 2 is a schematic structural diagram of an embodiment of the support unit in FIG. 1 .

FIG. 3 is a schematic structural diagram of an embodiment of the loading plate or the restraining plate in FIG. 1 .

FIG. 4 is a schematic structural diagram of an embodiment of the electric heater in FIG. 1 .

FIG. 5 is a schematic structural diagram of the adjustment structure in the second embodiment of the working condition simulation device for applying multi-field coupling to the reinforced geotechnical structure of the present invention.

FIG. 6 is a schematic structural diagram of the first embodiment of the performance testing system of the reinforced geotechnical structure under the action of multi-field coupling of the present invention.

FIG. 7 is a schematic structural diagram of the limit structure in the second embodiment of the performance testing system of the reinforced geotechnical structure under the action of multi-field coupling of the present invention.

The relevant marks in the above drawings are:

100-support unit, 110-frame, 120-bottom plate, 130-side plate, 210-loading plate, 220-drive mechanism, 230-servo-actuator, 240-support, 310-restraining plate, 311-uniform force plate, 320-support mechanism, 330-jack, 340-support rod, 350-adjustment structure, 351-first connecting part, 352-second connecting part, 353-bolt assembly, 354-first through hole, 355-second through-hole Hole, 360-cross bar, 370-inclined bar, 410-water circulation mechanism, 420-drying mechanism, 421-thermal resistance wire, 422-insulating film, 423-waterproof film, 430-water tank, 440-water pipe, 450-water pump , 500-solid-liquid separation unit, 510-drainage pipe, 520-filter, 610-third through hole, 620-blind hole, 630-fixed rod, 710-first ranging unit, 720-second ranging unit , 730-pressure monitoring unit, 740-state monitoring unit, 741-acceleration sensor, 742-temperature sensor, 743-water content sensor, 800-limiting structure, 810-cylinder, 820-cone, 830-channel.

Detailed ways

The present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Those of ordinary skill in the art will be able to implement the present invention based on these descriptions. Before the utility model is described in conjunction with the accompanying drawings, it should be particularly pointed out that:

The technical solutions and technical features provided in each part including the following description in the present invention can be combined with each other under the condition of no conflict.

In addition, the embodiments of the present invention referred to in the following description are generally only a part of the embodiments of the present invention, not all of the embodiments. Therefore, based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

About terms and units in this utility model. The terms "comprising", "having" and any variations thereof in the description and claims of the present invention and related parts are intended to cover non-exclusive inclusion.

FIG. 1 is a schematic structural diagram of a first embodiment of a working condition simulation device for applying multi-field coupling to a reinforced geotechnical structure of the present invention. FIG. 2 is a schematic structural diagram of an embodiment of the support unit in FIG. 1 . FIG. 3 is a schematic structural diagram of an embodiment of the loading plate or the restraining plate in FIG. 1 . FIG. 4 is a schematic structural diagram of an embodiment of the electric heater in FIG. 1 .

As shown in Figures 1-4, the working condition simulation device for applying multi-field coupling to reinforced geotechnical structures includes a support unit 100, a vertical loading unit, a lateral restraint unit, a dry-wet cycle control unit, a solid-liquid separation unit 500, and a fixed unit.

The support unit 100 is used to support the reinforced geotechnical structure; the support unit 100 includes a frame 110, a bottom plate 120 and two opposite side plates 130, one of the two side plates 130 is transparent The plate body, the transparent plate body is preferably tempered glass, so that the visualization of the experimental process can be realized through the plate body.

The vertical loading unit is used to apply a vertical dynamic load to the reinforced geotechnical structure; the vertical loading unit includes a loading plate 210 and a driving mechanism 220 for driving the loading plate 210 to move vertically; the loading plate 210 is located in the loading plate 210. Above the reinforced geotechnical structure; the drive mechanism 220 includes a servo actuator 230 and a bracket 240 , the upper end of the servo actuator 230 is connected to the bracket 240 , and the lower end of the servo actuator 230 is connected to the loading plate 210 .

The transverse restraint unit is used to impose transverse restraint on the reinforced geotechnical structure; the transverse restraint unit includes a restraint plate 310 and a support mechanism 320 for supporting the restraint plate 310; the transverse restraint units are two symmetrically arranged on the The two sides of the reinforced geotechnical structure; the two constraining plates 310, the bottom plate 120 and the side plate 130 form a box for filling the reinforced geotechnical structure; the support mechanism 320 includes a jack 330 and a support rod 340 for supporting the jack 330 , the jack 330 is matched with the restraint plate 310 , and the support rod 340 is connected with the frame 110 .

In order to improve the stability of the lateral restraint unit, the lateral restraint unit further includes a transverse rod 360 and an inclined rod 370 connecting the restraint plate 310 and the frame 110 .

A uniform force plate 311 is provided on the loading plate 210 and the restraint plate 310 , and the area of the uniform force plate 311 is smaller than that of the loading plate 210 and the restraint plate 310 . Therefore, by disposing the equalizing plate 311, the uniformity of the force exerted by the loading plate 210 and the restraining plate 310 on the reinforced geotechnical structure can be significantly improved.

The dry-wet cycle control unit is used to control the water content of the reinforced geostructure; the dry-wet cycle control unit includes a water cycle mechanism 410 and a drying mechanism 420; the water cycle mechanism 410 includes a water tank 430 arranged under the support unit 100, and The water pipe 440 connected to the water tank 430 and the water pump 450 transporting the water in the water tank 430 to the reinforced geotextile structure through the water pipe 440; the drying mechanism 420 includes an electric heater arranged on the bottom plate 120; when adding water, the water in the water pipe 440 Water slowly flows into the reinforced geostructure from the gap between the loading plate 210 and the support unit 100 , and during drainage, the water carrying particulate matter slowly flows into the water tank 430 from the gap between the restraint plate 310 and the support unit 100 .

The electric heater has a waterproof film 423, an insulating film 422 and a thermally conductive resistance wire 421. The insulating film 422 covers the thermally conductive resistance wire 421 and is bonded to the bottom plate 120. The waterproof film 423 covers the insulating film 422 and is bonded to the bottom plate 120. Sealed with glass glue.

The solid-liquid separation unit 500 is used to recover the particulate matter flowing out with water from the reinforced geotextile structure. The solid-liquid separation unit 500 includes a drain pipe 440 connected to the water tank 430 and a filter 520 provided on the drain pipe 440 . In order to facilitate taking out the particulate matter intercepted by the filter 520 , the drain pipe 440 is preferably connected with the filter 520 by screw thread.

The fixing unit is used for fixing the restraining plate 310 when filling the reinforced geotechnical structure; the fixing unit includes a third through hole 610 provided on the support unit 100 and a blind hole 620 provided on the side of the restraining plate 310 and the fixing rod 630 matched with the third through hole 610 and the blind hole 620. When in use, the fixing rod 630 can be inserted into the blind hole 620 after passing through the third through hole 610 to realize the fixing of the restraining plate 310; the fixing unit The cross section is rectangular, and there are two fixing units on both sides of the constraining plate 310 .

FIG. 5 is a schematic structural diagram of the adjustment structure in the second embodiment of the working condition simulation device for applying multi-field coupling to the reinforced geotechnical structure of the present invention.

As shown in FIG. 5 , on the basis of the first embodiment, the second embodiment of the working condition simulation device for applying multi-field coupling to the reinforced geotechnical structure further has the following settings: the support mechanism 320 further includes an adjusting jack 330 The adjustment structure 350 in the horizontal position of the The first through holes 354 are arranged at intervals on the part 352 ; the second through holes 355 are arranged on the support rod 340 ; The support rods 340 are connected. Therefore, the horizontal position of the jack 330 can be adjusted by moving the adjusting structure 350, so that the confining pressure of the reinforced geotechnical structure can be adjusted. The "confining pressure" refers to the pressure exerted on the reinforced geostructure by the structures surrounding it.

FIG. 6 is a schematic structural diagram of the first embodiment of the performance testing system of the reinforced geotechnical structure under the action of multi-field coupling of the present invention.

As shown in Fig. 6, the performance testing system for reinforced geotextile structures under the action of multi-field coupling includes a working condition simulation device and a measurement device; the working condition simulation device is used to simulate the work of applying multi-field coupling action to the reinforced geotechnical structure. The measuring device is used to measure the performance of the reinforced geotechnical structure under the multi-field coupling action exerted by the working condition simulating device.

The working condition simulation device adopts the working condition simulation device of any one of the above-mentioned embodiments, which applies multi-field coupling action to the reinforced geotechnical structure.

The measuring device includes a first ranging unit 710 , a second ranging unit 720 , a pressure monitoring unit 730 , a state monitoring unit 740 and a camera unit.

The first distance measuring unit 710 is used to measure the vertical displacement of the loading plate 210 ; the first distance measuring unit 710 includes a laser distance meter connected to the bracket 240 .

The second distance measuring unit 720 is used to measure the lateral displacement of the restraining plate 310 ; the second distance measuring unit 720 includes a dial indicator connected to the outer side of the restraining plate 310 .

The pressure monitoring unit 730 is used to measure the pressure on the reinforced geotextile structure; the pressure monitoring unit 730 includes a miniature earth pressure cell connected to the inner side of the restraint plate 310 .

The state monitoring unit 740 is used to measure the acceleration, temperature and moisture content of the reinforced geotechnical structure; the state monitoring units 740 are at least two and are arranged vertically spaced inside the reinforced geotechnical structure; the state monitoring unit 740 It includes an acceleration sensor 741, a temperature sensor 742 and a water content sensor 743; through the state monitoring units 740 arranged at intervals in the depth direction, the attenuation of dynamic acceleration, temperature and water content along the depth can be obtained.

The camera unit is used to photograph the reinforced geotextile structure through tempered glass, so as to know the movement of the particles during the test; the camera unit includes a camera; through the adapted image processing software, the reinforcement can be more intuitively detected. Changes in the geotechnical structure are analyzed.

FIG. 7 is a schematic structural diagram of the limit structure in the second embodiment of the performance testing system of the reinforced geotechnical structure under the action of multi-field coupling of the present invention.

As shown in FIG. 7 , on the basis of the first embodiment, the second embodiment of the performance testing system for reinforced geotechnical structures under the action of multi-field coupling further has the following settings: the pressure monitoring unit 730 further includes fixing the The limiting structure 800 of the miniature earth pressure cell; the limiting structure 800 includes a cylinder 810 connected with the constraining plate 310, the body of the miniature earth pressure cell is installed inside the cylinder 810, and the outer part of the cylinder 810 has a conical surface 820, The wall of the cylinder has a channel 830 for installing the wires of the micro-earth pressure cell; thus, the cylinder body 810 with the tapered surface 820 can disperse the force borne by the micro-earth pressure cell and prevent the micro-earth pressure cell from moving.

An embodiment of the performance testing method of the reinforced geotechnical structure of the present invention under the action of multi-field coupling is the performance testing system using any one of the above embodiments.

The performance test method specifically includes the following steps:

(1) Install the restraint plate 310;

That is, to install the fixing unit: the fixing rod 630 can pass through the third through hole 610 and be inserted into the corresponding blind hole 620 .

(2) Filling the reinforced geotechnical structure and installing the pressure monitoring unit 730 and the condition monitoring unit 740;

The reinforced geotechnical structure is preferably filled in layers, and when one layer is filled, one layer is compacted and vibrated to ensure that the compaction coefficient K, foundation coefficient K ₃₀ and dynamic deformation modulus E _vd of each filling layer meet the requirements. Arrange the pressure monitoring unit 730 and the condition monitoring unit 740 at the depth; wherein, the compaction coefficient K refers to the ratio of the dry density actually achieved by the compaction of the reinforced geotechnical structure to the maximum dry density of the sample obtained by the compaction test; The foundation coefficient K ₃₀ represents the compressibility of the surface of the reinforced geotechnical structure under the action of the plane pressure. It is represented by the force that needs to be applied to generate unit displacement. It is a static pressure plate load test with a rigid bearing plate with a diameter of 300mm. , take the load σ _S corresponding to s of 1.25mm on the stress-displacement (σ-s) curve measured for the first loading, and calculate it according to K ₃₀ =σ _S /1.25, the unit is MPa/mm; dynamic deformation The modulus E _vd refers to the parameter of the reinforced geotechnical structure's resistance to deformation under the action of a certain magnitude of vertical impact force F _S and impact time t _S , E _vd = 1.5rσ/s, r is the value of the circular rigid load plate. Radius, σ is the maximum dynamic stress under the load plate, which is obtained by calibrating the maximum impact force F _S = 7.07kN and the impact time t _S = 17ms on the basis of rigidity, that is, σ = 0.1MPa, s is the actual measurement The magnitude of the subsidence of the load plate.

(3) Install the drive mechanism 220 and the support mechanism 320;

When installing the support mechanism 320, the horizontal position of the jack 330 needs to be adjusted according to the required confining pressure, specifically:

First determine the size of the confining pressure, the formula for calculating the confining pressure is:

σ ₃ =K ₀ (γh+g(x))

In the formula, γ is the weight of the soil, h is the depth of the reinforced geotechnical structure, g(x) is the measured static stress on the top surface of the reinforced geotechnical structure, and K ₀ is about 0.3 to 0.4.

Then deduce the initial length of the jack 330 according to the confining pressure; adjust the jack 330 to be slightly smaller than the initial length; then install the jack 330 and the adjusting structure 350, so that the end of the jack 330 can withstand the first connecting part 351 of the adjusting structure 350; increase When the length of the jack 330 reaches the initial length, the required confining pressure can be applied to the reinforced geotechnical structure.

(4) Determine the exciting force and frequency of the dynamic load;

The excitation force and frequency of the dynamic load are calculated according to the axle load, wheelbase and train speed of the train in the actual application of the reinforced geotechnical structure.

The formula for calculating the exciting force is:

P _d =P(1+αv)

The formula for calculating frequency is:

In the formula, P is the axle load; l is the wheelbase; v is the speed of the train per hour; α is an empirical parameter. a=0.003.

(5) Obtain the data collected by the measuring device under any of the following simulation conditions for the reinforced geotechnical structure:

Simulation working condition 1: The driving mechanism 220 is operated under the condition that the dry-wetting cycle control unit has not been operated (in the initial state); thus, the working state of the reinforced geotechnical structure in the initial state under the action of the dynamic load can be simulated.

Simulation condition 2: Run the dry-wetting cycle control unit to make the reinforced geostructure change from the initial state to the water-saturated state; thus, the working state of the reinforced geostructure under extreme weather can be simulated.

Simulation condition 3: The driving mechanism 220 is operated under the water saturation state of simulation condition 2; thus, the working state of the reinforced geotechnical structure in the water saturated state under the action of dynamic load can be simulated.

Simulation condition 4: Run the dry-wetting cycle control unit to make the reinforced geostructure change from a water-saturated state to a dry state; thus, it is possible to simulate the working state that the moisture content of the reinforced geotechnical structure naturally decreases after rainfall until it is in a dry state.

Simulation condition 5: The driving mechanism 220 is operated in the dry state of simulation condition 4; thus, the working condition of the reinforced geotechnical structure after experiencing the water saturation state under the action of dynamic load can be simulated.

Simulation condition 6: Run the dry-wet cycle control unit to make the reinforced geotextile cycle between the water-saturated state and the dry state; thus, the working state of the reinforced geotextile during the dry-wet cycle can be simulated.

Simulation condition 7: The drive mechanism 220 is operated under each water-saturated state and dry state in simulation condition 6; the working condition of the reinforced geotechnical structure under the action of dynamic load in a complex and changeable environment can be simulated.

In the simulation of each working condition, the fixing rod 630 may or may not be removed.

(6) Collect the particles intercepted by the filter 520 and determine the particle size composition; take out the reinforced geotechnical structure and re-screen, and compare the composition changes before and after the experiment.

To sum up, the main beneficial effects of the present utility model are as follows:

(1) Through the vertical loading unit, the lateral restraint unit, and the dry-wet cycle control unit, the simulation of the three-factor coupling of water, heat and force acting on the reinforced geotechnical structure is realized, and the technical problem that it is difficult to simulate multi-field coupling in the existing technology is solved. .

(2) It can simulate working conditions under various extreme conditions, such as extreme conditions such as high-frequency dynamic load, dry-wet height cycle, etc., and solve the technical problem that it is difficult to simulate actual boundary conditions in the existing technology.

(3) The working condition simulation device and the performance test system have simple structure, convenient disassembly and assembly, low cost and high test accuracy.

The relevant content of the present invention has been described above. Those of ordinary skill in the art will be able to implement the present invention based on these descriptions. Based on the above-mentioned contents of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

Claims (10)

1. The working condition simulation device for applying the multi-field coupling effect on the reinforced geotechnical structure is characterized in that: the device comprises:

a support unit (100) for supporting the reinforced soil structure; the support unit (100) comprises a frame (110), a bottom plate (120) and a side plate (130);

the vertical loading unit is used for applying vertical dynamic load to the reinforced geotechnical structure; the vertical loading unit comprises a loading plate (210) and a driving mechanism (220) for driving the loading plate (210) to move vertically;

the transverse constraint unit is used for applying transverse constraint on the reinforced geotechnical structure; the transverse restraining unit comprises a restraining plate (310) and a supporting mechanism (320) for supporting the restraining plate (310); the restraint plate (310), the bottom plate (120) and the side plate (130) enclose a box body for filling the reinforced geotechnical structure;

the dry-wet cycle control unit is used for controlling the water content of the reinforced geotechnical structure; the dry-wet circulation control unit comprises a water circulation mechanism (410) and a drying mechanism (420).

2. The condition simulator of claim 1, wherein: at least one side plate (130) of the side plates (130) is a transparent plate body.

3. The condition simulator of claim 1, wherein: the loading plate (210) is positioned above the reinforced geotechnical structure; the driving mechanism (220) comprises a servo actuator (230) and a support (240), the upper end of the servo actuator (230) is connected with the support (240), and the lower end of the servo actuator (230) is connected with the loading plate (210).

4. The condition simulator of claim 1, wherein: the two transverse restraining units are symmetrically arranged on two sides of the reinforced geotechnical structure; and/or the supporting mechanism (320) comprises a jack (330) and a supporting rod (340) for supporting the jack (330), the jack (330) is matched with the restraining plate (310), and the supporting rod (340) is connected with the frame (110).

5. The condition simulator of claim 4, wherein: the support mechanism (320) further comprises an adjustment structure (350) for adjusting the horizontal position of the jack (330), the adjustment structure (350) comprising:

a first connection part (351), wherein the first connection part (351) is connected with the end part of the jack (330);

the second connecting part (352), the second connecting part (352) is provided with first through holes (354) which are arranged at intervals; a second through hole (355) is arranged on the supporting rod (340);

and a bolt assembly (353), wherein the bolt assembly (353) connects the second connecting part (352) with the support rod (340) through the first through hole (354) and the second through hole (355).

6. The condition simulator of claim 1, wherein: the load plate (210) and/or the restraint plate (310) are provided with force-equalizing plates (311), and the area of the force-equalizing plates (311) is smaller than that of the load plate (210) and/or the restraint plate (310).

7. The condition simulator of claim 1, wherein: the water circulation mechanism (410) comprises a water tank (430) arranged below the supporting unit (100), a water pipe (440) connected with the water tank (430), and a water pump (450) for conveying water in the water tank (430) to the reinforced soil structure through the water pipe (440); and/or the drying mechanism (420) comprises an electric heater arranged on the bottom plate (120).

8. The condition simulator of claim 1, wherein: the working condition simulation device also comprises a solid-liquid separation unit (500), wherein the solid-liquid separation unit (500) is used for recovering particles flowing out of the reinforced geotechnical structure along with water; and/or, the working condition simulation apparatus further comprises a fixing unit for fixing the restraining plate (310) when the reinforced soil structure is filled.

9. The condition simulator of claim 8, wherein: the solid-liquid separation unit (500) comprises a drain pipe (440) and a filter (520) provided on the drain pipe (440).

10. The condition simulator of claim 8, wherein: the fixing unit comprises a third through hole (610) arranged on the supporting unit (100), a blind hole (620) arranged on the side part of the restraint plate (310) and a fixing rod (630) matched with the third through hole (610) and the blind hole (620); the cross section of the fixing unit is non-circular.

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