CN115753376A

CN115753376A - Multi-scene simulation miniature pile reinforcement model test device

Info

Publication number: CN115753376A
Application number: CN202211435999.3A
Authority: CN
Inventors: 王钰轲; 邵琳岚; 韩沐森; 钟燕辉; 郭成超
Original assignee: Zhengzhou University
Current assignee: Zhengzhou University
Priority date: 2022-11-16
Filing date: 2022-11-16
Publication date: 2023-03-07

Abstract

The invention relates to a multi-scene simulation miniature pile reinforcement model test device. The device comprises a model box and a sliding baffle plate which can slide along the left-right direction, wherein two guide rails extending along the left-right direction are symmetrically arranged on the front side and the rear side of a bottom plate in parallel; the side slope forming pressing plate comprises a horizontal pressing plate and a forming inclined plate which are mutually hinged through a hinged shaft, and the horizontal pressing plate, the forming inclined plate and the hinged shaft can stretch in the left and right directions; a sliding cross beam of the loading device is assembled on the sliding rail in a sliding mode through sliding parts at two ends so as to slide freely along the sliding rail, and a servo jack is arranged below the sliding cross beam and used for loading the formed side slope; the rainfall simulation device comprises a water pump, a water pipe, a spray pipe and a plurality of spray heads arranged on the spray pipe; the earthquake simulation device comprises an upper platform, a lower platform and a plurality of springs connected between the upper platform and the lower platform, the upper platform is also correspondingly provided with a longitudinal vibration exciter and a transverse vibration exciter for simulating earthquake waves, and the model box and the loading device are fixed on the upper platform; and (5) pouring a tool.

Description

Multi-scene simulation miniature pile reinforcement model test device

Technical Field

The invention relates to a multi-scene simulation miniature pile reinforcement model test device.

Background

Landslide disasters often occur in the nature, and great damage is often caused to industrial and agricultural production and life and property safety of people. The control of landslide is greatly improved at home and abroad, and the common control measures for landslide are as follows: drainage, anti-slide pile reinforcement, a retaining wall method, weight reduction slope cutting presser feet and the like. At present, in slope engineering, the application of the micro-pile is becoming very wide. A large number of engineering examples show that the micro pile has small disturbance on the sliding body, has strong site adaptability and bending resistance, can play a certain anchoring role on the sliding bed and the sliding body, obviously improves the integrity of the landslide, and contributes to the improvement of the comprehensive shear strength of the sliding surface. Then how accurate use of micropile can play better prevention and cure effect under multiple scene still lacks scientific theoretical support, however current test device function is single, and the scene that can simulate is very limited, for example under different rainfall, different grade earthquake, emergency rescue and different pressure scenes etc. when corresponding different stake intervals, the research of the bearing performance condition of micropile, prior art lacks usable test equipment. The specific situation is as follows:

firstly, in the slope prevention and control project, the size of the pile spacing plays a decisive role in the generation of the soil arching effect. When the gliding force generated by the sliding body acts on the anti-sliding pile, the coupling action between the pile and the soil body generates a soil arch, and the anti-sliding effect of the structure is improved. Traditionally, the pile spacing is conservative, and the method has very important significance for determining reasonable pile spacing in consideration of economic benefit. In order to study the soil arching effect and determine a reasonable pile spacing, the influence of the size of the pile spacing on the formation of the soil arching effect needs to be studied, and an indoor model test is often carried out to observe the stress-strain characteristics of a pile body. When an indoor model test is carried out, the forming of a side slope is difficult to control, on one hand, the angle of the side slope is difficult to control, and on the other hand, a conventional test device model box is a square box with a fixed size, so that the problems of large soil filling amount and low efficiency exist in the test of the space between the small piles.

In addition, rainfall, earthquake, soil body dead weight, surface water immersion and the like can cause landslide, and the landslide is often analyzed through a targeted test for different causes.

Moreover, after a landslide occurs, in order to prevent secondary collapse, the slope needs to be reinforced urgently, at the moment, a non-aqueous reaction type high polymer material needs to be adopted for pouring temporarily and forming the miniature pile quickly, the material is characterized in that the generated reaction belongs to an anhydrous reaction, the solidification time is short, the strength is improved quickly, 90% of the ultimate strength can be provided in 15 minutes, and the drawing and pressure intensity is high; the material is free from maintenance and pollution, so that the material is considered to be used for emergency support of the side slope. However, the specific application experience of the material requires a simulation test to obtain experience data, and therefore, the simulation of the micro-pile forming of the material and the performance study after the forming in an emergency scene also need to be simulated.

Disclosure of Invention

The invention aims to provide a multi-scene simulation micro pile reinforcement model test device which can simulate rainfall, earthquake, emergency rescue and various scenes combined with each other and can realize test research on a common micro pile and a non-aqueous reaction type high molecular polymer micro pile.

The technical scheme of the invention is as follows: a multi-scene simulation miniature pile reinforcement model test device comprises:

the model box is a rectangular box body structure with an opening at the upper part, and comprises a front baffle, a rear baffle, a right baffle, a bottom plate and a sliding baffle capable of sliding along the left and right directions, wherein the front side and the rear side of the bottom plate are symmetrically provided with two guide rails extending along the left and right directions in parallel;

the side slope forming pressing plate comprises a horizontal pressing plate and a forming inclined plate which are mutually hinged through a hinged shaft, and the horizontal pressing plate, the forming inclined plate and the hinged shaft can stretch in the left and right directions;

the loading device comprises a plurality of stand columns and two fixed cross beams fixed at the tops of the stand columns, the two fixed cross beams are symmetrically arranged on the front side and the rear side above the model box in parallel, slide rails are respectively paved on the two fixed cross beams, two sliding cross beams are erected between the two slide rails, the sliding cross beams are assembled on the slide rails in a sliding mode through sliding parts at the two ends so as to freely slide along the slide rails, and servo jacks are arranged below the sliding cross beams and used for loading the formed side slope;

the rainfall simulation device comprises a water pump, a water pipe, a spray pipe and a plurality of spray heads arranged on the spray pipe, wherein the spray pipe is assembled between two slide rails in a sliding way through a sliding pipe clamping seat capable of moving along the slide rails;

the earthquake simulation device comprises an upper platform, a lower platform and a plurality of springs connected between the upper platform and the lower platform, the upper platform is also correspondingly provided with a longitudinal vibration exciter and a transverse vibration exciter which are used for simulating earthquake waves, and the model box and the loading device are fixed on the upper platform;

the pouring tool comprises a steel pipe and a pouring pipe, wherein the steel pipe is used for being inserted into a slope soil body to simulate a pile hole, the pouring pipe is fixed at the inner lower part of the steel pipe, and a plurality of seepage holes are formed in the bottom and the side face of the pouring barrel.

Further, the right baffle is made of transparent materials.

Further, three groups of bolt holes distributed in the up-and-down direction are uniformly distributed on the front side baffle plate and the rear side baffle plate along the left-and-right direction, each group comprises two rows of symmetrically arranged bolt holes, and the sliding baffle plate is selectively connected and fixed with one group of bolt holes through right angle steel.

Further, the right side baffle and the last symmetry of slide damper are provided with the spout, and the spout level sets up, and it is equipped with adjusting block to slide in the spout, the left and right sides of shaping swash plate symmetry respectively is equipped with the swash plate spout, adjusting block's outer end and swash plate spout sliding fit.

Furthermore, a corner measuring plate for detecting the inclination angle of the forming inclined plate is fixed at the right end of the hinged shaft.

Furthermore, the sliding pipe clamp seat is connected with the spray pipe through a pipe clamp, and the pipe clamp can be rotatably assembled on the sliding pipe clamp seat along a rotating shaft in the vertical direction.

Furthermore, L-shaped supporting plates are respectively arranged at the lower parts of the two ends of the sliding cross beam and are attached to the lower surfaces of the corresponding fixed cross beams.

The invention has the beneficial effects that: when the multi-scene simulation miniature pile reinforcement model test device is used, the multi-scene simulation miniature pile reinforcement model test device has the advantages that the following prior art can not be used for replacing:

(1) The characteristics of the micro-piles with different pile spacing can be conveniently researched, the size of the model box can be freely adjusted to adapt to different pile spacing, the loading position of the corresponding loading device can be correspondingly adjusted, and the research on the influence of different pile spacing on the soil arching effect is very convenient; in addition, for the study of the small pile spacing, the soil filling amount of the model box is not required to be large, the labor is saved, and the test efficiency is improved;

(2) The simulation method can simulate various practical scenes, such as emergency rescue construction for preventing secondary landslide after rainstorm, light rain, earthquake plus rain, landslide and the like, and controls a vibration exciter to vibrate corresponding to data according to the existing data such as frequency, amplitude and the like during actual earthquake through a controller, so as to simulate a real earthquake scene, and further simulate the landslide resistance of different micro-piles, different pile intervals, different micro-piles made of different materials and the like in the scene; similarly, research on various data under the rainy condition; the device can be used as a test device, simulation reality is the most important work, the device can be set according to the program, various simulation modules can be used for synchronously working in a mixed mode, and the test research of the miniature piles can be completed under the scenes.

Furthermore, the forming angle of the side slope is easy to control, whether the forming angle is suitable through the quantity angle plate can be conveniently approved, and the side slope forming pressing plate, the right side baffle and the sliding baffle are matched through the sliding groove, the inclined plate sliding groove and the adjusting slide block respectively, so that the side slope forming pressing plate can be more flexible and convenient in angle adjustment.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of a multi-scenario simulation micro-pile reinforcement model test device according to the present invention (a seismic simulation device is not shown);

FIG. 2 is a schematic view of the structure of a mold box;

FIG. 3 is a schematic view of a connection structure of the slide damper and the front damper;

FIG. 4 is a schematic view of a combination structure of a slope forming press plate;

FIG. 5 is a block diagram of FIG. 4 before assembly;

FIG. 6 is a view showing the fitting structure of the forming sloping plate and the sliding baffle of the slope forming pressing plate;

FIG. 7 is a schematic structural diagram of a loading device;

FIG. 8 is a schematic view of the rainfall simulation device in use;

FIG. 9 is a schematic diagram of the seismic modeling apparatus in use;

FIG. 10 is a schematic front view of a seismic modeling apparatus;

FIG. 11 is a bottom view of the structure of FIG. 10;

FIG. 12 is a schematic structural diagram of a pouring tool used for pouring a non-aqueous reactive polymer micro-pile;

FIG. 13 is a bottom view of the pouring tool;

in the figure: 1-mold box, 11-front baffle, 12-rear baffle, 13-right baffle, 131-chute, 132-adjusting slide, 14-sliding baffle, 15-guide rail, 16-slide, 17-bolt hole, 18-right angle steel, 19-stud bolt, 20-ordinary bolt, 2-slope forming press plate, 21-horizontal press plate, 22-forming inclined plate, 221-inclined plate chute, 23-articulated shaft, 24-gauge plate, 25-connecting plate, 3-loading device, 31-column, 32-fixed beam, 33-slide rail, 34-sliding beam, 341-sliding part, 35-servo jack, 36-pallet, 4-rainfall simulator, 41-water pump, 42-water pipe, 43-PVC spray pipe, 44-pipe clamp and sliding pipe clamp seat, 45-spray head, 5-earthquake simulator, 51-upper platform, 52-lower platform, 53-spring, 54-longitudinal vibration exciter, 55-transverse vibration exciter, 6-pouring tool, 61-seepage hole, 62-steel pipe, 7-3D laser scanner, and laser scanning device.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

The invention discloses an embodiment of a multi-scene simulation miniature pile reinforcement model test device, which comprises the following steps: the testing device is used for carrying out test research on the micro-piles, and as shown in figures 1-13, the main structure comprises a model box 1, a side slope forming pressing plate 2, a loading device 3, a rainfall simulation device 4, an earthquake simulation device 5 and a pouring tool 6.

As shown in fig. 1 and 2, the mold box 1 is a square box structure as a whole, and includes a bottom plate, a front baffle 11, a rear baffle 12, a right baffle 13, and a sliding baffle 14 located on the left side, the recommended dimensions of the mold box 1 are 2m, 1.5m, and 1.5m, respectively, the length, width, and height of the mold box 1 are respectively, the mold box 1 is a steel plate assembly structure, the plates except the sliding baffle 14 are all fixed structures, and the right baffle 13 corresponding to the sliding baffle 14 is made of a transparent material, such as a PC transparent plate, transparent nylon, acrylic, and the like. The corner that bottom plate and front side curb plate and rear side curb plate are connected is provided with guide rail 15 that is parallel to each other, guide rail 15 cross section is the round platform form, it has the slider to slide respectively on two guide rails 15, two sliders welded fastening respectively are on two lower extreme angles of slide damper 14, slide damper 14 relies on two sliders to realize along the free slip of guide rail 15, still be provided with lock nut respectively on two sliders, can be used to lock two sliders for guide rail 15, make the slider can not remove along guide rail 15. As shown in fig. 2, a row of spaced bolt holes are respectively formed in the front side baffle plate 11 and the rear side baffle plate 12, and the two rows of bolt holes are located in the same horizontal plane and are arranged in one-to-one coaxial correspondence. When the sliding baffle 14 moves to a certain position and needs to be locked, the sliding baffle 14 can be fixed in a bolt hole closest to the sliding baffle 14 through a bolt at the outer side (namely, the side facing the outside of the box body) of the sliding baffle 14, the sliding baffle 14 is blocked by the bolt, the sliding baffle 14 cannot move continuously after the blocking, and soil can be filled in the box body at the moment.

For the study of the pile spacing of the micro pile, some pile spacings are commonly used, at this time, the sliding baffle 14 is required to be frequently located at some commonly used positions, in order to improve the bearing capacity of the sliding baffle 14 in the frequent use process, three groups of bolt holes which are vertically arranged at intervals are arranged on the front side baffle 11 and the rear side baffle 12 along the extending direction of the guide rail 15, and each group is correspondingly provided with two rows of bolt holes, at this time, the sliding baffle 14 can be firmly fixed on the front side baffle 11 and the rear side baffle 12 by utilizing right angle steel 18 and bolts, as shown in fig. 2 and 3, two sides of each side of the sliding baffle 14 are respectively provided with an angle steel 18, the angle steel 18 and the sliding baffle 14 are respectively provided with a bolt hole in a corresponding mode, the two angle steels 18 on two sides are fixed by adopting a double-headed bolt 19 and two groups of nuts relative to the connection of the sliding baffle 14, and the angle steels 18 are connected by adopting a common bolt 20 and a nut relative to the connection of the front side plate and the rear side plate.

As shown in fig. 4 and 5, the slope molding press plate 2 includes a horizontal press plate 21 and a molding sloping plate 22, the horizontal press plate 21 and the molding sloping plate 22 are both composed of inner plates and outer plates sleeved with each other along the left-right direction, the horizontal press plate 21 and the molding sloping plate 22 are hinged with each other through a hinge shaft 23, the hinge shaft 23 is also composed of inner shafts and outer pipes sleeved with each other, and the horizontal press plate 21, the molding sloping plate 22 and the hinge shaft 23 can be telescopically adjusted along the left-right direction so as to adapt to the size change of the model box 1. The right end of the hinge shaft 23 is also fixedly provided with a angle measuring plate 24, the angle of the forming inclined plate 22 relative to the horizontal pressing plate 21 can be checked through the angle measuring plate 24, namely, the inclination angle of the forming inclined plate 22 can be checked, the angle corresponds to the angle of the slope, and the angle of the slope can be conveniently adjusted and controlled through the arrangement of the angle measuring plate 24.

As shown in fig. 1, 4 and 6, in order to realize the positioning of the slope forming device relative to the mold box 1 and make the forming position and shape of the slope meet the test standard, two sliding chutes 131 are correspondingly and parallelly arranged on the right baffle 13 and the sliding baffle 14, and the two sliding chutes 131 are horizontally arranged and are bilaterally symmetrical. The two sliding grooves 131 are respectively provided with an adjusting slide block 132 in a sliding manner, the adjusting slide block 132 can be of a T-shaped structure, and the corresponding sliding groove 131 is also of a T-shaped cross section, so that the adjusting slide block 132 installed in the sliding groove 131 can only slide along the sliding groove 131 and cannot be separated from the sliding groove 131. Two inclined plate sliding grooves 221 are symmetrically arranged on the left side and the right side of the forming inclined plate 22, the inclined plate sliding grooves 221 extend along the side length direction of the forming inclined plate 22, and when the inclined plate forming device is used, the two adjusting sliding blocks 132 are inserted into the two corresponding inclined plate sliding grooves 221 respectively, so that the adjusting sliding blocks 132 can slide along the inclined plate sliding grooves 221. Since the adjustment slider 132 can slide with respect to the slide groove 131 and the inclined plate slide groove 221, when the slope molding press plate 2 is used, the inclination angle of the molding inclined plate 22 can be freely adjusted while the horizontal press plate 21 is kept at a fixed position.

As shown in fig. 7, the loading device 3 is a frame structure, is erected on the periphery of the model box 1, and includes four columns 31 and two fixed beams 32, the upper portions of the two fixed beams 32 are provided with slide rails 33, two ends of the two slide beams 34 respectively slide relative to the slide rails 33 through slide portions 341 in guiding sliding fit with the slide rails 33, and the cross section of the slide rails 33 is i-shaped, so that the slide portions 341 are not easily separated from the slide rails 33. Servo jacks 35 are respectively fixed at the set positions of the lower part of the sliding beam 34 corresponding to the top of the formed side slope, and can be used for loading gravity to the formed side slope and simulating the scenes such as the self weight or collapse of a soil body. L-shaped supporting plates 36 are respectively welded to the lower portions of the two ends of the sliding beam 34, the supporting plates 36 extend to the lower portion of the fixed beam 32 and are attached to the lower surface of the fixed beam 32, the supporting plates 36 slide relative to the lower surface of the fixed beam 32 along with the movement of the sliding beam 34, and when the servo jack 35 is loaded, upward reaction force fed back to the sliding beam 34 can be unloaded on the fixed beam 32 through the supporting plates 36. In use, the loading positions of the two servo jacks 35 can be adjusted for different pile spacings to correspond to the position of the micropile, and the influence of collapse in different orientations on the load-bearing properties of the micropile can be studied. In this embodiment, the height of the upright 31 may be set to 2.5m, and the size of the sliding beam 34 is 0.2m × 0.2m × 3m. The lower end of the output end of the servo jack 35 is fixed with a steel plate to increase the contact area with the soil body and uniformly distribute the acting force.

As shown in fig. 8, the rainfall simulation device 4 includes a water pump 41, a water pipe 42, a PVC shower pipe 43, a plurality of cross-shaped atomizing nozzles 45, pipe clamps, and a sliding pipe clamp holder. The water pump 41 is through carrying the water in the cistern to PVC shower 43 in through water pipe 42, and the other end shutoff of PVC shower 43, PVC shower 43 pass through the pipe clamp to be fixed on the sliding tube holder, and the sliding tube holder slides and assembles on slide rail 33 on fixed cross beam 32 upper portion, and every PVC shower 43 lower part interval sets up a plurality of apopores, and the apopore department installs cross atomizer 45 respectively. The pipe clamp can slide relative to the sliding pipe clamp seat, so that the PVC spray pipe 43 is convenient to disassemble and assemble. In the test, a 3D laser scanner 7 is also needed to be arranged for monitoring the deformation process of the side slope, and the collected data is used for subsequent analysis.

The rainfall simulation device 4 can adjust the rotating speed and the frequency of the water pump 41 so as to simulate different types of rainfall processes, and therefore the performance of the micro-pile, the slope deformation condition and the like under different rainfall conditions can be researched.

As shown in fig. 9, the earthquake simulator 5 includes an upper platform 51 and a lower platform 52, the lower platform 52 is placed on or fixed on the ground, the upper platform 51 is supported on the lower platform 52 through a plurality of uniformly distributed springs 53, the model box 1 and the loading device 3 are both fixed on the upper platform 51, and the upper platform 51 is further provided with a longitudinal vibration exciter 54 and a transverse vibration exciter 55 for simulating an earthquake. And controlling each vibration exciter to vibrate according to the set frequency and amplitude through the controller so as to simulate the earthquake, thereby completing the micro pile test in the earthquake scene.

As shown in fig. 12 and 13, the pouring tool 6 is a cylinder with an open upper part, grout permeating holes 61 are formed in the circumferential surface and the bottom surface, a steel pipe 62 is sleeved outside the pouring tool 6, the bottom of the steel pipe 62 is fixedly connected with the pouring tool 6 through three steel bars, the steel pipe 62 is embedded in a soil body to simulate a pile hole, the steel pipe 62 is drawn out after the soil body is filled, and meanwhile, non-aqueous reaction type high polymer grout is poured into the pouring tool 6 in the steel pipe 62 from the upper part of the steel pipe 62, so that the grout slowly flows into the pile hole left after the steel pipe 62 is drawn out, and a micro pile can be formed after the grout is quickly solidified.

The following describes the usage under various scenarios:

scene one is the destruction bearing test of ordinary miniature stake during different stake interval gravity loading:

step 1, prefabricating the model pile, namely prefabricating the pile by using reinforced concrete, manufacturing a circular-section pile with the pile diameter of 30mm and the pile length of 800mm, determining the concrete grade as C20, and adopting a pile core reinforcement mode. Pasting a strain gauge on the pile body of the model pile;

step 2, the model test of 2 times of the pile spacing is carried out in the embodiment, so that the sliding baffle 14 is adjusted to a proper position, and then the sliding baffle 14 is fixed relative to the front side baffle 11 and the rear side baffle 12;

step 3, cleaning the interior of the model box 1, and paving a plastic film on the inner wall of the model box 1 to reduce the friction between the soil body and the inner wall of the model box 1;

step 4, filling a layer of soil body in the model box 1, and fixing the model piles in the model box 1 according to the set interval of the test;

step 5, installing a slope forming device according to the slope toe angle of the experimental design, adjusting the size of the slope forming device according to the width of the model box 1, placing a horizontal pressing plate 21 on a soil body, referring to a angle measuring plate 24, adjusting the angle of a forming inclined plate 22 relative to the horizontal pressing plate 21 to be 15-45 degrees, fixing the inclined pressing plate through bolts, burying a soil pressure box at the designed soil body position, filling the soil body in a layered mode, and compacting;

step 6, adjusting the positions of the sliding beam 34 and the servo jack 35 in the loading device 3 according to the position of the side slope, so that the pressure head of the servo jack 35 is positioned right above the top of the side slope, and a steel plate is padded below the pressure head, so that the acting force is uniformly distributed;

step 7, controlling the servo jack 35 to carry out step-by-step loading through a servo controller, and recording data such as pile top displacement, pile body strain, soil body pressure and the like;

and 8, analyzing and processing the data.

And a second scene is a destruction process of a slope body under the action of simulated strong rainfall:

step 1, prefabricating a model pile;

step 2, moving the sliding beam 34 in the loading device 3 to two ends, installing a PVC spray pipe 43 with a spray head 45 on the pipe clamp, connecting one end of a water pump 41 with a water pipe 42 and connecting the other end with a water source, and placing the 3D laser scanner 7;

and 3, manufacturing a side slope model in the model box 1, turning on a switch of the water pump 41, changing the rotating speed or starting frequency of the water pump 41 according to the control of the controller to simulate the rainfall process, starting a test, and detecting the deformation of a slope body by using the 3D laser scanner 7.

And a third scene is the forming of the non-aqueous reaction type high molecular polymer micro-pile during simulating landslide emergency rescue:

step 1, paving a layer of soil in a model box 1, compacting, fixing a steel pipe 62 at a proper position of the model box 1, welding and fixing a pouring tool 6 at the lower part of the steel pipe 62 through a steel bar, simulating a pile hole in an actual project, and continuously filling and compacting the soil;

and 2, after filling soil, performing grouting operation on the steel pipe 62, pulling out the steel pipe 62 while grouting, directly pouring the grout on the pouring tool 6, buffering the grout by the pouring tool 6, slowly flowing out of pile holes left after pulling out the steel pipe 62, waiting for solidification and forming of the grout, and performing tests such as gravity loading, rainfall loading, earthquake loading and the like on the high polymer after the micro-pile is formed.

And a fourth scene is a destruction process of the earthquake time slope body:

step 1, prefabricating a micro pile;

step 2, fixing the micro pile at a set position at the bottom of the model box 1, attaching a strain gauge, pre-embedding a pressure box, filling soil, and placing a 3D laser scanner 7;

and 3, manufacturing a side slope model in the model box 1, controlling the earthquake simulation device 5 to respectively generate longitudinal seismic waves, transverse seismic waves and mixed seismic waves through the controller, starting a test, and detecting the deformation of a slope body by using the 3D laser scanner 7.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.

Claims

1. The utility model provides a model test device is consolidated to miniature stake of multi-scene simulation which characterized in that includes:

the earthquake simulator comprises an upper platform, a lower platform and a plurality of springs connected between the upper platform and the lower platform, wherein the upper platform is also correspondingly provided with a longitudinal vibration exciter and a transverse vibration exciter for simulating earthquake waves, and the model box and the loading device are fixed on the upper platform;

the pouring tool comprises a steel pipe and a pouring pipe, wherein the steel pipe is used for being inserted into a slope soil body to simulate a pile hole, the pouring pipe is fixed at the lower portion in the steel pipe, and a plurality of slurry seepage holes are formed in the bottom and the side face of the pouring barrel.

2. The multi-scenario simulation micro-pile reinforcement model test device of claim 1, wherein the right baffle is made of transparent material.

3. The multi-scene simulation micro-pile reinforcement model test device as claimed in claim 1, wherein three groups of bolt holes distributed in the up-down direction are uniformly distributed on the front and rear side baffles in the left-right direction, each group comprises two rows of symmetrically arranged bolt holes, and the sliding baffle is selectively connected and fixed with one group of bolt holes through right angle steel.

4. The multi-scene simulation micro-pile reinforcement model test device according to claim 1, wherein sliding grooves are symmetrically formed in the right side baffle and the sliding baffle, the sliding grooves are horizontally arranged, adjusting sliding blocks are slidably assembled in the sliding grooves, inclined plate sliding grooves are symmetrically formed in the left side and the right side of the forming inclined plate respectively, and the outer ends of the adjusting sliding blocks are in sliding fit with the inclined plate sliding grooves.

5. The multi-scene simulation micro-pile reinforcement model test device as claimed in claim 1, wherein a angulation plate for detecting the inclination angle of the forming inclined plate is fixed at the right end of the hinged shaft.

6. The multi-scenario simulation micro-pile reinforcement model test device according to claim 1, wherein the sliding pipe clamp base is connected with the shower pipe through a pipe clamp, and the pipe clamp can be rotatably assembled on the sliding pipe clamp base along a rotating shaft in a vertical direction.

7. The multi-scenario simulation micro-pile reinforcement model test device according to claim 1, wherein L-shaped support plates are respectively arranged at lower portions of two ends of the sliding beam, and the support plates are attached to lower surfaces of corresponding fixed beams.