CN107632116B - A kind of three-dimensional grouting model test servo-control system and test method - Google Patents

Abstract

The invention discloses a kind of three-dimensional grouting model test servo-control system and test methods, and the present invention is based on the methods of mechanical load, remold the Rock And Soil disturbed, form it into class undisturbed soil by note Rock And Soil；Using the method for axial and circumferential flexible load, make to be noted Rock And Soil and be in three-dimensional stress state, compared with the ambient stress of real simulation soil body preservation；Using high-voltage oil cavity sealing technique, so that test cavity is born higher slurry pressure, really simulate grouting pressure；Drilling tool is fixed using mechanical means, improves sample drilling stationarity, sample is effectively protected and is not affected or less affected by disturbance, improve grouting and reinforcing body quantity of sampling quantity.

Description

A kind of three-dimensional grouting model test servo-control system and test method

Technical field

The present invention relates to a kind of three-dimensional grouting model test servo-control system and test methods.

Background technology

In the underground engineering constructions such as tunnel, subway, the unfavorable geologies such as fault belt, the solution cavity of rich water are often met with Body, and then the disasters such as water burst, landslide of dashing forward are induced, seriously threaten engineering safety.Slip casting is to administer the prominent discharge disaster of underground engineering, add Admittedly the effective ways for promoting stratum bearing capacity, ensuring engineering safety.

Grouting model test is one of the important means of research grouting for water blocking reinforcement mechanism.Currently, existing slip casting model There are problems for pilot system, specifically include：(1) hand compaction is taken to dissipate local method reducing in-situ Rock And Soil, compacting mostly Standard is lack of standardization, cannot effectively simulate the nature of Rock And Soil；(2) it is often vertically answered using the unidirectional Loading Method simulation soil body Power does not consider influence of the horizontal crustal stress to slip casting effect；(3) sealing performance of model support component connecting portion is poor, examination It is relatively low to test the pressure that chamber is born, experiment grouting pressure cannot truly actual grouting pressure in model engineering；(4) manual sampling When carrying out physical and mechanical parameter test, drilling tool shake and bias rock that amplitude is larger, and sampling disturbance is serious, while destroying slip casting and adding Solid causes the physical and mechanical parameter measured to be distorted.The disadvantages mentioned above of traditional grouting model test system causes test result accurate Exactness is poor, and the applicability of pilot system is limited.Therefore carry out novel three-dimensional grouting model test Research on Servo Control System, examine Consider the influence of three-dimensional ground stress, strengthening system leakproofness improves grouting pressure range, reduces sampling disturbance, improves soil sample compacting Normalization, have most important theories research significance and engineering application value.

Invention content

The present invention is to solve the above problems, propose a kind of three-dimensional grouting model test servo-control system and experiment side Method remolds the Rock And Soil disturbed the present invention is based on the method for mechanical load, form it into class undisturbed soil by note Rock And Soil； Using the method for axial and circumferential flexible load, make to be noted Rock And Soil and be in three-dimensional stress state, compared with real simulation soil body preservation Ambient stress；Using high-voltage oil cavity sealing technique, test cavity is enable to bear higher slurry pressure, true simulation slip casting pressure Power；Drilling tool is fixed using mechanical means, sample drilling stationarity is improved, is effectively protected sample and is not affected or less affected by disturbance, is improved Grouting and reinforcing body quantity of sampling quantity.

To achieve the goals above, the present invention adopts the following technical scheme that：

A kind of three-dimensional grouting model test servo-control system, including bearing test platform, assembly sample platform, observing and controlling are flat Platform and slip casting water supply installation, wherein：

The bearing test platform is provided with forcing press, remodeling chamber and test cavity, and remodeling intracavitary dissipates soil, forcing press to fill Pressure is applied for remodeling chamber and dissipates soil to remold, the test cavity provides circumferential load to by note Rock And Soil；

The assembly sample platform assembling meter dismounting remodeling chamber and test cavity, extract soil sample and cut, realize sampling；

Slurries or the Rock And Soil of water injection testing chamber are formed feed flow SERVO CONTROL by the slip casting water supply installation, keep equal Even slip casting or water filling provide rich water environment；

Monitoring platform acquisition and control pressure machine is axially loaded, the circumferential confining pressure of test cavity and slip casting-water supply installation pressure and Flow realizes three-dimensional grouting model test process real time monitoring.

Further, the forcing press includes reaction frame and load cylinder, and bearing plate assembles translating device under reaction frame, adds It carries oil cylinder soil is dissipated to remodeling intracavitary and provide axially loaded, when the grouting and reinforcing soil body, test cavity is located on shift unit and in pressing In the force space of power machine, load cylinder provides axially loaded for the soil body of test cavity.

Further, the remodeling chamber includes semicircular cylinder and underwire assembly, and semicircular cylinder two sides outer wall welds reserved spiral shell The thin strip-plate of keyhole, ring side outer wall welds prepared screw-bolt hole annular sheet under semicircular cylinder, weld bolt hole on the outer wall of upper ring side Ear, underwire assembly include pallet, ring plate and axis pin, and injected hole is opened up at tray center, and pallet circumferential direction is uniformly drilled on side Multiple pin shaft holes, pin shaft hole central shaft and pallet diameter are on one wire；Several ring plates are spliced into an annulus, and in annulus Diameter is equal with pallet diameter, the pin shaft hole of perforation is drilled on ring plate side and disk upper pin hole opposite position, in ring plate On face threaded hole is drilled on position corresponding with semicircular cylinder annular sheet bolt hole.

The test cavity includes shell and kernel, and balancing gate pit is formed between shell and kernel, to providing ring by note Rock And Soil To load, the shell specifically includes upper cover, steel cylinder, pedestal and snap ring, and upper cover is set on the upside of steel cylinder, and steel cylinder upper surface increases If bolt hole platform, for bolt hole platform in steel cylinder inner wall, snap ring platform is added in steel cylinder lower face, and snap ring platform utilizes snap ring in steel cylinder outer wall By steel cylinder and the close clamping lock of pedestal.

Further, the pedestal is cylindrical in second step type, and axial duct is drilled on two step fronts, and It is radially drilled with horizontal pipe in snap ring platform lower side, is connected to corresponding axial duct, oil fuel tube, slip casting are buried at pipeline Pipe, water injection pipe and sensor line, the oil fuel tube between pedestal and monitoring platform are connected pressure transmitter；Getting out of a predicament or an embarrassing situation, front is opened If card slot, to install extensometer；Sealing ring half slot is opened up in two step sides, is provided with sealing ring.

Further, the kernel includes and is noted by note Rock And Soil, porous disc, seal disc, rubber tube and radial extensometer Rock And Soil upper surface is bonded porous disc, and lower face is bonded pallet, and pallet is bonded porous disc again, and seal disc is connect with Grouting Pipe, note It starches pipe to be inserted by note Rock And Soil central shaft hole across porous disc centre bore, sealing side surface is close to porous disc, and rubber sleeve will be noted Inside it, pedestal is threadedly coupled with another Grouting Pipe, and rubber sleeve covers on seal disc circumferential direction side for Rock And Soil and porous disc set, The other end covers the small circumferential side of pedestal, and both ends junction is locked, and extensometer branch piece distinguishes the corresponding card slot of inserted base On, measuring point is located in rubber tube at waist, to measure the radial deformation of rubber tube.

Further, it is remolded by disturbed soil by note Rock And Soil, central shaft opens up injected hole, penetrates through by note ground Body, porous disc are made of permeable stone, and there is permeable impermeable slurry characteristic, center to open up slip casting aperture, and seal disc is in round pie, It opens up injected hole at central shaft, opens up water injection hole at three pitch-rows around injected hole, and pipeline metallic channel is opened up in upper plane, Rubber ring half slot is opened up on ring-like side, radial extensometer is made of multiple extensometer branch pieces, multiple extensometer branch piece measuring points It is distributed on a circle, monitors the radial deformation of cylindrical object.

The assembly sample platform, including mechanical arm, hoistable platform and hoisting component, hoistable platform are located at mechanical arm rocking arm Immediately below operating area, the flat surface and ground level of hoistable platform are horizontal, and mechanical arm connects hoisting component by spindle box and drives Steel cylinder do rotate, vertical or translational motion, hoistable platform drives pedestal and moved up and down by note Rock And Soil, mechanical arm and lifting Platform matches realization assembly remodeling chamber and test cavity；Mechanical arm connects coring bit or chain saw by spindle box, drives it The drilling soil body or cutting soil, realize mechanical sampling.

Further, the mechanical arm includes concrete bed, foundation bolt, fixed seat, inner column, outer column, rocking arm And spindle box, more foundation bolts are buried in concrete bed straight down, are evenly arranged in circumferential direction, foundation bolt burial place Corresponding along bolt hole under fixed seat, fixed seat is fixed on by foundation bolt on concrete bed, inner column and fixed seat Connection, outer column are sleeved on inner column, and outer column can be rotated horizontally around inner column, and rocking arm is vertical with outer column and passes through cylindrical shape Locking device locks, and rocking arm can move vertically along outer column, and spindle box is along the horizontal guide slot horizontal movement of rocking arm, spindle box company The object connect realizes rotation, vertical or translational motion by cooperating between inner column, outer column, rocking arm and spindle box；It is main Main shaft can drive coring bit to realize the drilling soil body on axle box, and chain saw can also be driven to realize cutting soil.

Further, twice crossbeam is welded on the hoistable platform table top, is welded carrying axle on crossbeam, is installed in carrying axle Bearing forms two row bearings on twice crossbeam, and two row bearing spacing are equal with two row bearing spacing in shift unit；Under forcing press Installation limit meter, makes the bearing that hoistable platform is raised in bearing and shift unit on crossbeam in same level position on bearing plate It sets, limit meter is connect with hoistable platform controller, ensures that displacement tablet is smoothly moved on hoistable platform out of forcing press.

The hoisting component, including steel cylinder, which plays hanging piece and semicircular cylinder, plays hanging piece, it is in triangle claw-type structure that steel cylinder, which plays hanging piece, and three Angle is 120 ° between a arm, three arm end prepared screw-bolt holes on same circle, and with steel drum upper end spiro keyhole position It sets corresponding；The other end intersects with other two arm end, and intersection is the pipe for connecting main shaft, and it is in people that semicircular cylinder, which plays hanging piece, Character form structure, three one end prepared screw-bolt holes of arm on same isosceles triangle, and with half drum upper end bolt hole position It is corresponding；The other end intersects with other two arm end, and intersection is the pipe for connecting main shaft, and pipe axle center is located at isosceles three On angular center line intersection point.

The slip casting water supply installation, including slip casting unit, slip casting unit includes agitator tank, metering-type plunger pump, high-voltage tube, Pressure transmitter and electromagnetic flowmeter, agitator tank mix cement and water, form cement grout, and metering-type plunger pump pulp-absorbing pipe is put into In agitator tank slurries, metering-type plunger pump grout outlet passes through the pedestal inlet pipe of high-voltage tube joint test chamber, metering-type plunger pump Connected pressure transmitter and electromagnetic flowmeter using high-voltage tube between test cavity, with monitor into test cavity slurries pressure and Flow.

Slurries pass through metering-type plunger pump, pressure transmitter and electromagnetic flowmeter, last injection testing intracavitary from agitator tank Rock And Soil, slurry pressure and flow information are passed to monitoring platform, monitoring platform control by pressure transmitter and electromagnetic flowmeter Metering-type plunger pump adjusts slurries and flow, forms slip casting servo-control system.

Agitator tank in slip casting unit is replaced with into water tank, slurries, which change, makees water, forms water supplying unit, is equally watched to water supply The random switching of constant pressure, permanent flow control is realized in clothes control.

The monitoring platform includes servo-fluid potential source, measure-controlling unit and acquisition process unit, and servo-fluid potential source is note It starches water supply installation and power source is provided, measure-controlling unit receives to pass for measuring axially loaded strain gauge and straight-line displacement Sensor, the pressure transmitter for measuring test cavity circumferential direction confining pressure, the pressure for measuring slip casting water supply installation pressure and flow The sensor signal of transmitter and electromagnetic flowmeter, acquisition process unit acquire the sensor information and control and sensor pair The control valve answered.

The test method of three-dimensional grouting model test servo-control system, includes the following steps：

(1) the three-dimensional grouting model test servo-control system of connection composition；

(2) on displacement tablet, remodeling chamber is assembled using mechanical arm, it is mobile to shift in tablet to forcing press test space, Using layer-compacting, filling equivalent dissipates soil by several times, and elasticity modulus and the density compression with load cylinder according to undisturbed soil dissipate soil；

(3) it is matched using mechanical arm, semicircular cylinder and displacement tablet, remodeling chamber dismantle and group is carried out to test cavity Dress connects the exterior line and circuit being connected with test cavity；

(4) initial size and increase and decrease gradient for setting confining pressure, axis pressure, grouting pressure and full water pressure, carry out circumferential load, It is carried out after confining pressure reaches initial value and stablizes axially loaded, slip casting and full is carried out after axial stress reaches initial value and stablizes Water stops slip casting after grouting parameter reaches slip casting requirement, and full water parameter stops water of satisfying after reaching full water requirement, after slip casting The grouting pipeline outside test cavity is cleaned immediately, after water to be satisfied, first unloads axial stress, then unload circumferential confining pressure；

(5) sample physical and mechanical property test is carried out to the soil body coring of grouting and reinforcing after the test.

In the step (3), test cavity upper cover is connected with terminal bolt ear on remodeling chamber, rises load cylinder and drives, Loading disc drives upper cover and remodeling chamber to rise to certain altitude, Grouting Pipe is installed on test cavity pedestal, using mechanical arm by pedestal It hangs on mobile tablet and is moved to immediately below remodeling chamber, decentralization remodeling chamber makes underwire assembly and base contacts；Dismantle upper cover Bolt rises load cylinder, and mobile displacement tablet makes remodeling chamber within the scope of robotic arm manipulation, and mechanical arm spindle box uses semicircle Cylinder slings part and connects a semicircular cylinder, dismounting remodeling chamber semicircular cylinder bolt, and mechanical arm drives semicircular cylinder to be rotated, decline fortune It is dynamic, so that semicircular cylinder is moved to its resettlement, likewise, another semicircular cylinder is moved on to semicircular cylinder resettlement, pulls up on underwire assembly Axis pin removes ring plate.

In the step (3), when assembling test cavity, floor installation sealing ring, seal disc installs sealing ring and Grouting Pipe；Soil Body circumferential direction side puts on rubber tube, porous disc on soil body upper end cover, and the seal disc of Grouting Pipe has been installed on porous disc upper cap；Steel Cord winds tighten rubber tube both ends respectively, is sealed rubber tube；Circumferential extensometer is installed in pedestal card slot；In pedestal and close Corresponding internal duct and circuit are installed on the reserved pipeline of closing disk；Hoistable platform drives the soil body and installing component declines, machine Tool arm plays hanging piece connection steel cylinder using steel cylinder and slings right over steel cylinder to the soil body, rises hoistable platform to pedestal and steel cylinder and connects It touches；Snap ring locks pedestal and steel cylinder, removes steel cylinder and plays hanging piece, mobile displacement tablet drives test cavity to forcing press center； Loading disc drops to contact seal disc, and upper cover is connect and sealed with steel cylinder using high-strength bolt.

Compared with prior art, beneficial effects of the present invention are：

1, the measurement and control center being made of servo-fluid potential source, measure-controlling unit and acquisition process unit in the present invention, then match Resultant pressure machine forms servo-control system, accurately can measure and control load cylinder, using this servo-control system, according to former Shape soil density and elasticity modulus index, can accurately remold dissipate soil, formed class also original soil by note Rock And Soil.

2, test cavity kernel is formed by the components such as the rubber sleeve package soil body, kernel periphery includes interior karyomorphism by components such as steel cylinders At test cavity kernel, using the axially loaded kernel soil body of machinery, using hydraulic pressure between kernel and shell circumferential loaded soil, axis Be all made of to load and circumferential confining pressure and carry out SERVO CONTROL with measurement and control center, for the soil body provide with accuracy, chronicity and The three-dimensional stress state of stability, compared with the ambient stress of real simulation soil body preservation.

3, test cavity pedestal and steel cylinder, rubber sleeve are sealed using three seals circle；Pipeline is laid from pedestal preserved pipeline, Pipeline uses thread seal, circuit to be sealed using screw-thread fit high pressure sealing glue.Each connecting portion sealing performance significantly improves, and makes Test cavity bears higher slurry pressure, true model engineering grouting pressure.

4, it is based on radial drilling machine technology, coring bit, coring bit tool are connected using rotating speed and the main shaft of position-adjustable There are good glacing flatness and a concentricity, drilling is steady when coring, is effectively protected sample and is not affected or less affected by disturbance, raising slip casting adds Solid quantity of sampling quantity.

5, using elements such as circumferential extensometer, circumferential pressure transmitter, axial spoke type strain gauge, displacement sensors Whole soil body axial direction and circumference stress strain are measured, in conjunction with grouting pressure and flow, full water pressure, quantitative response slip casting process Interaction between middle Rock And Soil and slurries.

6, slip casting-water supply installation forms grouting pipeline using metering-type grouting pump, electromagnetic flowmeter, pressure transmitter, then It is matched with measurement and control center and to form pressure, SERVO CONTROL slip casting-water system that flow switches at random, can be accurately controlled and survey Measure slip casting and water supply process.

7, this system has original experimentation parameter input function, can carry out data acquisition, data processing to experiment overall process It is shown with test result；Automatic collection, processing, display test data；It is automatic draw power-displacement, power-time, displacement-when Between etc. a variety of trial curves.

Description of the drawings

The accompanying drawings which form a part of this application are used for providing further understanding of the present application, and the application's shows Meaning property embodiment and its explanation do not constitute the improper restriction to the application for explaining the application.

Fig. 1 is present system composition schematic diagram；

Fig. 2 is present system assembling schematic diagram；

Fig. 3 is press structure schematic diagram of the present invention；

Fig. 4 is present invention remodeling cavity configuration and its block diagram；

Fig. 5 is test cavity structural schematic diagram of the present invention；

Fig. 6 is test cavity kernel of the present invention composition and its block diagram；

Fig. 7 is seal disc of the present invention and base schematic diagram；

Fig. 8 is shift unit of the present invention and hoistable platform schematic diagram；

Fig. 9 is assembly of the present invention-sampling multifunctional platform schematic diagram；

Figure 10 is coring bit of the present invention and chain saw schematic diagram；

Figure 11 is the schematic diagram that the present invention plays hanging piece；

Figure 12 is slip casting-water injection unit schematic diagram of the present invention；

Figure 13 is the monitoring platform schematic diagram of the present invention；

Wherein 1 bearing test platform, 2 assembly-sampling multifunctional platform, 3 monitoring platforms, 4 slip castings-water supply installation, 1-1 Forcing press, 1-2 remodelings chamber, 1-3 test cavities, 2-1 mechanical arms, 2-2 hoistable platforms, 4-1 slip castings unit, 4-2 water injection units, 5-1 Oil inlet pipe I, 5-2 flowline I, 5-3 oil inlet pipe II, 5-4 flowline II, 5-5 electromagnetic flowmeter signal line I, 5-6 pressure transmitter Signal wire I, 5-7 metering-type grouting pump signal wire I, 5-8 electromagnetic flowmeter signal line II, 5-9 pressure transmitter signal wire II, 5- 10 metering-type grouting pump signal wire II, 5-11 circumferential direction extensometer signal wires, 5-12 spoke type strain gauges signal wire, 5-13 are straight Bearing plate under displacement of the lines meter signal wire, the upper bearing plates of 5-14 pressure transmitter signal wires III, 1-1-1,1-1-2 columns, 1-1-3, 1-1-4 load cylinders, 1-1-5 loading discs, 1-1-6 spoke types strain gauge, 1-1-7 Linear displacement meters, 1-1-8 nuts, 1- 1-9 cylinder barrels, 1-1-10 piston rods, 1-4 shift units, 1-2-1 semicircular cylinders, 1-2-2 semicircular cylinders ear, 1-2-3 underwire assemblies, 1- 2-3-1 ring plates, 1-2-3-2 pallets, 1-2-3-3 axis pins, 1-3-1 upper covers, 1-3-2 steel cylinders, 1-3-3 pedestals, 1-3-4 snap rings, 1- 3-5 bolts hole platform, 1-3-6 snap rings platform, 1-3-7 seal discs, 1-3-8 steel wire ropes, 1-3-9 porous discs, 1-3-10 rubber tubes, 1-3- 11 by note Rock And Soil, 1-3-12 radial extensometers, 1-3-13 pedestals, 1-3-14 Grouting Pipes, 1-3-15 water injection pipes, 1-3-16 pipelines Metallic channel, 1-3-17 sealing ring half slot I, 1-3-18 slip castings tube passage, 1-3-19 water fillings tube passage, 1-3-20 signal wires are logical Road, 1-3-21 extensometers card slot, 1-3-22 sealing ring half slots II, 1-4-1 displacement tablet, 1-4-2 bearings, 1-4-3 carrying axles, 2-2-1 hoistable platforms fork-shearing frame, 2-2-2 crossbeams, 2-2-3 hoistable platforms table top, 2-2-4 limit meter, 2-1-1 concrete beds, 2-1-2 foundation bolts, 2-1-3 fixed seats, 2-1-4 inner columns, 2-1-5 outer columns, 2-1-6 rocking arms, 2-1-7 spindle boxes, 2-1-8 Main shaft, 2-1-9 coring bits, 2-1-10 chain saws, 2-3 hoisting components, 2-3-1 steel cylinders play hanging piece, the lifting of 2-3-2 semicircular cylinders Part, 4-1-1 agitator tanks, 4-1-2 metering-type plunger pump I, 4-1-3 high-voltage tube I, 4-1-4 pressure transmitter I, 4-1-5 Electromagnetic Flows Count I, 4-2-1 water tank, 4-2-2 metering-type plunger pump II, 4-2-3 high-voltage tube II, 4-2-4 pressure transmitter II, 4-2-5 electromagnetic currents Gauge II, 3-1 servo-fluid potential source, 3-2 measure-controlling units, 3-3 acquisition process unit, 3-3-1 system operatios interface, 3-3-2 Acquisition processing module.

Specific implementation mode：

The invention will be further described with embodiment below in conjunction with the accompanying drawings.

It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field The identical meanings of understanding.

It should be noted that term used herein above is merely to describe specific implementation mode, and be not intended to restricted root According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet Include " when, indicate existing characteristics, step, operation, device, component and/or combination thereof.

As background technology is introduced, exists in the prior art and hand compaction reduction is taken to dissipate soil, compacting criteria is not advised Model cannot be restored effectively and dissipate soil；Unidirectional loading simulation soil body vertical stress is taken, horizontal crustal stress is not accounted for；Model framework Part connecting portion poor sealing performance, it is relatively low that test cavity bears pressure, and experiment grouting pressure cannot truly model engineering slip casting pressure Power；It is big to rock amplitude for drilling tool shake or bias when manual sampling, on the one hand disturb sample, on the other hand destroy grouting and reinforcing body opening Wall causes sample physical and mechanical property to be distorted, and grouting and reinforcing body can use the few deficiency of sample quantities, in order to solve technology as above Problem, present applicant proposes

A kind of three-dimensional grouting model test servo-control system.The present invention is based on the method for mechanical load, remodeling has disturbed Rock And Soil, form it into class undisturbed soil by note Rock And Soil；Using the method for axial and circumferential flexible load, make to be noted ground Body is in three-dimensional stress state, compared with the ambient stress of real simulation soil body preservation；Using high-voltage oil cavity sealing technique, make test cavity It can bear higher slurry pressure, true simulation grouting pressure；Drilling tool is fixed using mechanical means, it is steady to improve sample drilling Property, it is effectively protected sample and is not affected or less affected by disturbance, improve grouting and reinforcing body quantity of sampling quantity；

As shown in Figure 1 and Figure 2, it is made of five parts, respectively bearing test platform 1, assembly sample platform 2, monitoring platform 3 and slip casting water supply installation 4.Bearing test platform 1 is to restore to dissipate soil, sensor laying and grouting operation platform in experiment；It assembles-takes Sample platform 2 is for dismounting test cavity and drilling through sample；Monitoring platform 3 is controlled for systematic survey and data acquisition process；Slip casting Water supply installation 4 provides rich water environment for injecting by note Rock And Soil slurries, and for it.

Bearing test platform 1 divides for three parts, respectively forcing press 1-1, remodeling chamber 1-2 and test cavity 1-3.Forcing press 1- 1 is scattered native and axially loaded by note Rock And Soil, appearance and size 1600*1600*2600mm, test space 1000* for remolding 1000*2000mm, forcing press 1-1 are made of reaction frame and load cylinder 1-1-4, bearing plate 1-1-3 assembly translation under reaction frame Device 1-4；Remodeling chamber 1-2 dissipates soil for remolding, and inside dimension isTest cavity 1-3 is used for by note ground Body three-dimensional loads and slip casting, appearance and size areTest cavity 1-3 is made of shell and kernel.Remodeling dissipates soil When, remodeling chamber 1-2 is located on shift unit and in forcing press 1-1 test space, and load cylinder 1-1-4 is to remolding chamber 1-2 Interior scattered soil can provide axially loaded；When the grouting and reinforcing soil body, test cavity 1-3 also is located on shift unit 1-4 and is in forcing press In 1-1 test spaces, load cylinder 1-1-4 may pass through shell provided for the kernel soil body it is axially loaded.

As shown in figure 3, forcing press 1-1 includes upper bearing plate 1-1-1, column 1-1-2, lower bearing plate 1-1-3, load cylinder 1-1-4, loading disc 1-1-5, spoke type strain gauge 1-1-6, displacement sensor 1-1-7.Column both ends are T-type screw thread；On Bearing plate 1-1-1, lower bearing plate 1-1-3 are rectangular block, and corner location opens up circular hole, and upper bearing plate 1-1-1 is opened at center If circular hole, lower pressure-bearing 1-1-3 plates open up cuboid slot and circular trough；Load cylinder 1-1-4 is double acting cylinder, load cylinder 1-1- 4 stretching motions are all made of hydraulic oil control.Forcing press 1-1 assembling forms are：Four column 1-1-2 are each passed through loading plate circle Hole, and make it with bearing plate using connection using nut；Load cylinder 1-1-4 includes cylinder barrel 1-1-9 and piston rod 1-1-10, cylinder Cylinder 1-1-9 is fixed on the lower surfaces bearing plate 1-1-1 using one group of circumferential direction high-strength bolt, and piston rod 1-1-10 is located at upper bearing plate The vertical centers 1-1-1 are simultaneously connect with loading disc 1-1-5 using flexural pivot mode；Spoke type strain gauge 1-1-6 is solid using screw rod It is contacted at the centers lower bearing plate 1-1-3 and with shift unit 1-4；Displacement sensor 1-1-7 is fixed on using screw and is held On the lower surfaces pressing plate 1-1-1, survey line end is fixed on piston rod 1-1-10, by measuring wheel spoke type sensor 1-1-6 offset tables Show load cylinder 1-1-4 axial displacements.

As shown in figure 4, remodeling chamber 1-2 includes semicircular cylinder 1-2-1 and underwire assembly 1-2-3.Outside the two sides semicircular cylinder 1-2-1 Wall welds the thin strip-plate of prepared screw-bolt hole, and ring side outer wall welds prepared screw-bolt hole annular sheet, upper ring under semicircular cylinder 1-2-1 Weld bolt hole ear 1-2-2 on the outer wall of side.Underwire assembly 1-2-3 is by pallet 1-2-3-2, ring plate 1-2-3-1, axis pin 1-2-3- 3 compositions.Pallet 1-2-3-2 is in cake plate-like and opens up injected hole at its center, and nine pins are uniformly drilled on pallet circumferential direction side Axis hole, pin shaft hole central shaft and pallet diameter are on one wire；Three ring plate 1-2-3-1 can be spliced into an annulus, and annulus Internal diameter is equal with pallet 1-2-3-1 diameters.On the sides ring plate 1-2-3-1 and pallet 1-2-3-2 upper pins hole opposite position It is drilled with the pin shaft hole of perforation, spiral shell is drilled on position corresponding with semicircular cylinder annular sheet bolt hole on the faces ring plate 1-2-3-1 Pit.Remolding chamber 1-3 assembling forms is：Two semicircular cylinder 1-2-1 thin strip-plate bolts hole are passed through to make its composition circle using bolt Cylinder；Pass through pallet 1-2-3-2 and ring plate pin shaft hole that it is made to form underwire assembly 1-2-3 using axis pin 1-2-3-3；Using bolt Across two semicircular cylinder annular sheet bolts hole, underwire assembly 1-2-3 is connected, eventually forms remodeling chamber 1-2.

As shown in figure 5, test cavity 1-3 includes shell and kernel.Balancing gate pit is formed between shell and kernel, to by note ground Body provides circumferential load.

As shown in figure 5, shell is made of upper cover 1-3-1, steel cylinder 1-3-2, pedestal 1-3-3, snap ring 1-3-4.Upper cover 1-3-1 For discoid plate, circular hole is opened up at center.Steel cylinder 1-3-2 adds upper surface bolt hole platform, and bolt hole platform 1-3-5 is in steel cylinder 1-3- Snap ring platform 1-3-6 is added in 1 inner wall, steel cylinder lower face, and snap ring platform 1-3-6 is in steel cylinder outer wall.Pedestal 1-3-3 is in step cylinder Shape is drilled with axial duct on two step fronts, and is radially drilled with horizontal pipe in snap ring platform lower side, and corresponding Axial duct is connected to, and pipeline is for burying oil fuel tube, Grouting Pipe, water injection pipe and sensor line, between pedestal and monitoring platform Oil fuel tube connect pressure transmitter；Card slot 1-3-21 is opened up in front of getting out of a predicament or an embarrassing situation, for installing extensometer 1-3-12；At two Sealing ring half slot 1-3-22 is opened up in step side, for installing sealing ring.Snap ring 1-3-4 is by three concave grooved ring blocks Composition.Shell assembling form is：It is connected using one group of circumferential direction high-strength bolt between upper cover 1-3-1 and steel cylinder 1-3-2；Steel cylinder 1-3- 2 lower ends cover on pedestal 1-3-3；Three are used between steel cylinder 1-3-2 and pedestal 1-3-3Sealing ring seals, and adopts It is lockked with snap ring 1-3-4.

As shown in Figure 6, Figure 7, kernel includes by note Rock And Soil 1-3-11, porous disc 1-3-9, pallet 1-2-3-2, Grouting Pipe 1-3-14, seal disc 1-3-7, steel wire rope 1-3-8, rubber tube 1-3-10, radial extensometer 1-3-12, pedestal 1-3-13.It is noted Rock And Soil 1-3-11 is remolded by dissipating soil, and central shaft opens up injected hole, is penetrated through by note Rock And Soil；Porous disc 1-3-9 is used Permeable stone makes, and has permeable impermeable slurry characteristic, center opens up injected hole；Pallet is same with above-mentioned pallet；Grouting Pipe The one end 1-3-14 has external screw thread；Seal disc 1-3-7 is in round pie, opens up injected hole at central shaft, three around injected hole Water injection hole is opened up at pitch-row, and opens up pipeline metallic channel 1-3-16 in upper plane, and sealing ring half slot 1- is opened up on ring-like side 3-17；Steel wire rope has high tensile flexible；Rubber tube 1-3-10 is cylindrical shape, has the characteristics such as flexibility is big, tensile strength is high；It is radial Extensometer 1-3-12 is made of 4 extensometer branch pieces, and 4 extensometer branch piece measuring points are distributed on a circle, can survey cylinder thing The radial deformation of body；Pedestal 1-3-13 is same with the pedestal introduced in shell above.Kernel assembling form is：By note ground The upper surfaces body 1-3-11 are bonded porous disc, and lower face is bonded pallet 1-2-3-2, and pallet 1-2-3-2 is bonded porous disc 1-3-9 again； Seal disc 1-3-7 is threadedly coupled with Grouting Pipe 1-3-14, and the two combines grouting behind shaft or drift lining pipe 1-3-14 and passes through porous disc 1-3-9 centre bores It is inserted by note Rock And Soil 1-3-11 central shaft holes, seal disc 1-3-7 is close to porous disc 1-3-9 in end face；Rubber sleeve 1-3-10 will be by Note Rock And Soil 1-3-11 and porous disc 1-3-9 sets inside it；Pedestal 1-3-13 is threadedly coupled with another Grouting Pipe 1-3-14, rubber Gum cover 1-3-10 is covered on seal disc 1-3-7 circumferential directions side, and the other end covers the small circumferential sides pedestal 1-3-13, both ends connection Place is all made of steel wire rope 1-3-8 and tightens, and steel wire rope 1-3-8 is tensed after rubber sleeve 1-3-10 windings with steel wire cord holder, then is used Steel wire rope lock tube locks steel wire rope 1-3-8；Extensometer branch piece is distinguished on the corresponding card slot 1-3-21 of inserted base 1-3-13, surveys Point is located in rubber tube 1-3-10 at waist, the radial deformation for measuring rubber tube 1-3-10.

As shown in figure 8, shift unit 1-4 includes displacement tablet 1-4-1, carrying axle 1-4-2, bearing 1-4-3.Shift tablet 1-4-1 is convex plate；Carrying axle 1-4-2 is welded on two sides of lower bearing plate 1-1-3 cuboid slots, after multiple welding Carrying axle 1-4-2 lines up two row；Bearing 1-4-3 is sleeved on carrying axle 1-4-2, forms two row bearings；Shift tablet 1-4-1 and two Row bearing touch and can on bearing linear slide.

As shown in Fig. 8~Figure 10, assembly sample platform 2 includes mechanical arm 2-1, hoistable platform 2-2 and hoisting component 2-3. Hoistable platform 2-2 is located at immediately below mechanical arm rocking arm 2-1-6 operating areas, and the flat surface and ground level of hoistable platform 2-2 is horizontal, Mechanical arm 2-1 by spindle box 2-1-7 connection hoisting components drive steel cylinder 1-3-2 do rotate, vertically, translational motion, lifting is flat Platform 2-2 drives pedestal 1-3-13 and is moved up and down by objects such as note Rock And Soil 1-3-11, mechanical arm 2-1 and hoistable platform 2-2 Match realization assembly remodeling chamber 1-2 and test cavity 1-3；Mechanical arm 2-1 passes through spindle box 2-1-7 connection coring bits 2-1-9 Or chain saw 2-1-10, their drilling soil bodys or cutting soil are driven respectively, realize mechanical sampling.

Mechanical arm 2-1 as shown in Figure 9, Figure 10 includes mainly concrete bed 2-1-1, foundation bolt 2-1-2, fixed seat 2- 1-3, inner column 2-1-4, outer column 2-1-5, rocking arm 2-1-6, spindle box 2-1-7.Concrete bed 2-1-1 is 1000*1000* 1800mm (long * wide * high) concrete masonry；Foundation bolt 2-1-2 sizes areFixed seat 2-1-3 is barreled Structure, lower edge reserve anchor (bolt) hole；Inner column 2-1-4, outer column 2-1-5 are cylindrical shape, high 1600mm；Rocking arm 2-1-6 With horizontal guide slot, it is oriented to slot length 800mm；Spindle box 2-1-7 includes the components such as motor, main shaft 2-1-8, main shaft 2-1-8 It can be around its axle center rotation.Mechanical arm 2-1 assembling forms are：7 foundation bolt 2- are buried in concrete bed 2-1-1 straight down 1-2 is evenly arranged in circumferential direction, and foundation bolt burial place is corresponding along bolt hole under fixed seat 2-1-3；Fixed seat passes through ground Foot bolt is fixed on concrete bed 2-1-1；Inner column 2-1-4 is connect with fixed seat 2-1-3, including outer column 2-1-5 sets On column, outer column 2-1-5 can be rotated horizontally around inner column；Rocking arm 2-1-6 is vertical with outer column 2-1-5 and is locked by cylindrical shape Tight device locking, rocking arm 2-1-6 can move vertically along outer column；Spindle box 2-1-7 is horizontal along the horizontal guide slot of rocking arm 2-1-6 Movement.To sum up, the object of spindle box 2-1-7 connections passes through inner column 2-1-4, outer column 2-1-5, rocking arm 2-1-6 and spindle box It cooperates between 2-1-7 and realizes rotation, vertical, translational motion；Main shaft 2-1-8 can drive coring bit on spindle box 2-1-7 2-1-9 realizes the drilling soil body, and chain saw 2-1-10 can also be driven to realize cutting soil.

Carrying axle is welded as shown in figure 8, being welded on hoistable platform table top 2-2-3 on twice crossbeam 2-2-2, crossbeam 2-2-2 1-4-3 installs bearing 1-4-2 in carrying axle, two row bearing 1-4-2 is formed on twice crossbeam 2-2-2.Two row bearing spacing with it is upper It is equal to state two row bearing spacing in shift unit；Separately 2-2-4 is counted in installation limit on bearing plate 1-1-3 at forcing press 1-1, makes liter Drop platform 2-2-1 is raised to the bearing on crossbeam 2-2-2 with the bearing in shift unit 1-4 in the same horizontal position, limit meter 2- 2-4 is connect with hoistable platform controller, ensures that displacement tablet 1-4-1 can smoothly be moved to hoistable platform out of forcing press 1-1 On 2-2-1.

As shown in figure 11, hoisting component 2-3 includes that steel cylinder plays hanging piece 2-3-1 and semicircular cylinder hanging piece 2-3-2.Steel cylinder lifts by crane Part 2-3-1 is in triangle claw-type structure, and angle is 120 ° between three arms, and three arm end prepared screw-bolt holes are in same circle On, and it is corresponding with steel drum upper end bolt hole position；The other end intersects with other two arm end, and intersection is connection main shaft Pipe.It is in herringbone structure that semicircular cylinder, which plays hanging piece 2-3-2, and three one end prepared screw-bolt holes of arm are in same isosceles triangle On, and it is corresponding with half drum upper end bolt hole position；The other end intersects with other two arm end, and intersection is that connection is led The pipe of axis, pipe axle center are located on isosceles triangle center line intersection point.

As shown in figure 12, slip casting water supply installation includes slip casting unit 4-1, water supplying unit 4-2.Slip casting unit includes agitator tank 4-1-1, metering-type plunger pump 4-1-2, high-voltage tube 4-1-3, pressure transmitter 4-1-4, electromagnetic flowmeter 4-1-5.Metering-type column Plug pump 4-1-2 rates are manually adjustable, and agitator tank 4-1-1 mixs cement and water form cement grout；Metering-type plunger pump 4-1- 2 pulp-absorbing pipes are put into agitator tank 4-1-1 slurries；Metering-type plunger pump 4-1-2 grout outlets pass through high-voltage tube 4-1-3 joint test chambers 1-3 pedestal 1-3-11 inlet pipes.Between metering-type plunger pump 4-1-2 and test cavity 1-3 using high-voltage tube 4-1-3 connect pressure become Device 4-1-4 and electromagnetic flowmeter 4-1-5 is sent, for monitoring pressure and flow into test cavity 1-3 slurries.Slurries are from agitator tank 4-1-1 is by metering-type plunger pump 4-1-2, pressure transmitter 4-1-4, electromagnetic flowmeter 4-1-5, last injection testing chamber 1-3 Interior Rock And Soil.Slurry pressure and flow information are passed to monitoring platform 3 by pressure transmitter 4-1-4 and electromagnetic flowmeter 4-1-5, Monitoring platform 3 controls metering-type plunger pump 4-1-2 and adjusts slurries and flow, forms slip casting servo-control system.Likewise, slip casting Agitator tank 4-1-1 is exchanged with water tank 4-2-1 in device, and slurries, which change, makees water, can form water supply servo-control system.Slip casting-water supply dress The random switching of constant pressure, permanent flow control can be realized by setting 4.

As shown in figure 13, monitoring platform 3 includes servo-fluid potential source 3-1, measure-controlling unit 3-2, acquisition process unit 3- 3.Monitoring platform 3 is axially loaded for control pressure machine, test cavity 1-3 circumferential direction confining pressures, 4 pressure of slip casting-water supply installation and flow. Measure-controlling unit 3-2 receives for measuring axially loaded spoke type strain gauge 1-1-6 and linear displacement transducer 1- 1-7, for measuring the pressure transmitter 4-1-4 of test cavity circumferential direction confining pressure, for measuring slip casting-water supply installation pressure and flow The sensor signals such as pressure transmitter 4-1-4 (4-2-4) and electromagnetic flowmeter 4-1-5 (4-2-5), and include corresponding control Valve processed.Acquisition process unit 3-3 includes acquisition processing module 3-3-2, system operatio interface 3-3-1.Acquisition processing module 3-3-2 For acquiring the sensor information and controlling control valve；System operatio interface 3-3-1 is mainly by target setting column, real-time display Column, index curve graph composition.Target setting column is for being arranged the indexs such as axial compressive force, circumferential confining pressure, water injection pressure；Real-time display Column is for indexs such as real-time display axial compressive force, axial displacement, circumferential pressure, circumferential displacement, grouting pressure, full water pressures；Refer to Mark song line chart is for showing axial stress strain curve figure, circumferential confining pressure strain curve figure, grouting pressure-time plot, just In observation test process.

The test method of the present invention is as follows.

1, system assembles.By forcing press 1-1, assembly sample platform 2, monitoring platform 3 and slip casting water supply installation 4 using corresponding Pipeline and signal wire assemble to form three-dimensional grouting model test servo-control system.

2, remodeling dissipates soil.On displacement tablet 1-4-1, mechanical arm 2-1 assembling remodelings chamber 1-2, mobile displacement tablet are utilized In 1-4-1 to forcing press 1-1 test spaces, using layer-compacting, filling equivalent dissipates soil by several times, with load cylinder 1-1-4 foundations Elasticity modulus and the density compression of undisturbed soil dissipate soil.

3, remodeling chamber 1-2 dismountings.Terminal bolt ear on chamber 1-2 by test cavity 1-3 upper covers 1-3-1 and is remolded using high-strength bolt Piece 1-2-2 is connected, and rises load cylinder 1-1-4 and drives, and loading disc 1-1-5 drives upper cover 1-3-1 and remodeling chamber 1-2 to rise to one Fixed height；Grouting Pipe 1-3-14 is installed on test cavity 1-3 pedestals 1-3-13, is hung pedestal 1-3-13 using mechanical arm 2-1 It on mobile tablet 1-4-1 and is moved to immediately below remodeling chamber 1-2, decentralization remodeling chamber 1-2 makes underwire assembly 1-2-3 and pedestal 1-3- 13 contacts；Upper cover 1-3-1 bolts are dismantled, load cylinder 1-1-4 is risen, mobile displacement tablet 1-4-1 makes remodeling chamber 1-2 in machinery In arm 2-1 opereating specifications；Mechanical arm spindle box 2-1-7 slings part 2-3-2 one semicircular cylinder 1-2-1I of connection using semicircular cylinder, tears open Remodeling chamber 1-2 semicircular cylinder 1-2-1I bolts are unloaded, mechanical arm 2-1 drives semicircular cylinder 1-2-1 to carry out rotating-descending motion, makes semicircle Cylinder 1-2-1I is moved to its resettlement, likewise, another semicircular cylinder 1-2-1II is moved on to semicircular cylinder resettlement；Pull up collet group Part 1-2-3 upper pin 1-2-3-3, remove ring plate 1-2-3-1.

4, test cavity 1-3 is assembled.Pedestal 1-3-13 installs sealing ring, seal disc 1-3-7 installation sealing rings and Grouting Pipe 1- 3-14；Soil body circumferential direction side puts on rubber tube 1-3-10, porous disc 1-3-9 on soil body upper end cover, on porous disc 1-3-9 upper caps The seal disc 1-3-7 of Grouting Pipe 1-3-14 has been installed；Steel wire rope 1-3-8 is wound respectively tightens the both ends rubber tube 1-3-10, carries out Caulking gum cylinder 1-3-10；In the circumferential extensometer 1-3-12 of pedestal 1-3-13 card slots 1-3-21 installations；In pedestal 1-3-13 and close Corresponding internal duct and circuit are installed on pipeline reserved closing disk 1-3-7；Hoistable platform 2-2 drives the soil body and installing component Declining, mechanical arm 2-1 plays hanging piece 2-3-1 connection steel cylinder 1-3-2 using steel cylinder and slings right over steel cylinder 1-3-2 to the soil body, on Hoistable platform 2-2 to pedestal 1-3-13 is risen to contact with steel cylinder 2-2；Snap ring 1-3-4 locks pedestal 1-3-13 and steel cylinder 1-3-2, tears open It unloads steel cylinder and plays hanging piece 2-3-1, mobile displacement tablet 1-4-1 drives test cavity 1-3 to the centers forcing press 1-1；Loading disc 1- 1-5, which drops to, contacts seal disc 1-3-7, and upper cover 1-3-1 is connect and sealed with steel cylinder 1-3-2 using high-strength bolt；Connection and examination Test chamber 1-3 connected exterior line and circuit.

5, slip casting.First confining pressure, axis pressure, grouting pressure, full hydraulic pressure are set on system operatio interface 3-3-1 target settings column The indexs such as power initial size and increase and decrease gradient；Then circumferential load is carried out, is carried out after confining pressure reaches initial value and stablizes axial Load carries out slip casting and full water after axial stress reaches initial value and stablizes, stops after grouting parameter reaches slip casting requirement Slip casting, full water parameter stop water of satisfying after reaching full water requirement.Operation order between slip casting and full water is according to specific test requirements document It can be adjusted.Finally, the grouting pipeline outside test cavity 1-3 is cleaned after slip casting immediately；After water to be satisfied, first unload Axial stress, then unload circumferential confining pressure.

6, reinforcing body samples.Steel cylinder 1-3-2 and upper cover 1-3-1 are detached from by bonnet bolt in dismounting；Shifting tablet 1-4-1 will Test cavity 1-3 is moved on hoistable platform 1-4-1, and steel cylinder 1- is removed using cooperation between mechanical arm 2-1 and hoistable platform 1-4-1 3-2, the components such as dismounting pipeline, circumferential extensometer 1-3-12, seal disc 1-3-7, steel wire rope 1-3-8, rubber sleeve 1-3-10；Main shaft Case 2-1-7 main shafts 2-1-8 installs coring bit 2-1-9, and to the soil body coring of grouting and reinforcing, first layer reinforcing body coring is completed Afterwards, spindle box 2-1-7 main shafts 2-1-8 changes chain saw 2-1-8 cutting grouting and reinforcing bodies, then carries out next layer of coring.Coring knot Shu Jinhang sample physical and mechanical property tests.

The foregoing is merely the preferred embodiments of the application, are not intended to limit this application, for the skill of this field For art personnel, the application can have various modifications and variations.Within the spirit and principles of this application, any made by repair Change, equivalent replacement, improvement etc., should be included within the protection domain of the application.

Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not protects model to the present invention The limitation enclosed, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art are not Need to make the creative labor the various modifications or changes that can be made still within protection scope of the present invention.

Claims (9)

1. a kind of three-dimensional grouting model test servo-control system, it is characterized in that：It is flat including bearing test platform, assembly sampling Platform, monitoring platform and slip casting water supply installation, wherein：

The bearing test platform is provided with forcing press, remodeling chamber and test cavity, and remodeling intracavitary dissipates soil to fill, forcing press for Remodeling chamber applies pressure and dissipates soil to remold, and the test cavity provides circumferential load to by note Rock And Soil；

The assembly sample platform assembling meter dismounting remodeling chamber and test cavity, extract soil sample and cut, realize sampling；

Slurries or the Rock And Soil of water injection testing chamber are formed feed flow SERVO CONTROL by the slip casting water supply installation, keep uniformly note Slurry or water filling, provide rich water environment；

Monitoring platform acquires axially loaded simultaneously control pressure machine, the circumferential confining pressure of test cavity and slip casting-water supply installation pressure and flow, Realize three-dimensional grouting model test process real time monitoring；

The remodeling chamber includes semicircular cylinder and underwire assembly, and the bar shaped that semicircular cylinder two sides outer wall welds prepared screw-bolt hole is thin Plate, ring side outer wall welds prepared screw-bolt hole annular sheet under semicircular cylinder, weld bolt hole ear on the outer wall of upper ring side, underwire assembly Including pallet, ring plate and axis pin, injected hole is opened up at tray center, multiple pin shaft holes are uniformly drilled on pallet circumferential direction side, is sold Axis hole central shaft and pallet diameter are on one wire；Several ring plates are spliced into an annulus, and internal radius and pallet diameter It is equal, the pin shaft hole of perforation is drilled on ring plate side and disk upper pin hole opposite position, on ring plate face with semicircular cylinder Annular sheet bolt hole is drilled with threaded hole on corresponding position.

2. a kind of three-dimensional grouting model test servo-control system as described in claim 1, it is characterized in that：The forcing press packet Reaction frame and load cylinder are included, bearing plate assembles translating device under reaction frame, and it is axial that load cylinder dissipates soil offer to remodeling intracavitary Load, when the grouting and reinforcing soil body, test cavity is located on shift unit and in the force space in forcing press, and load cylinder is to try The soil body offer for testing chamber is axially loaded.

3. a kind of three-dimensional grouting model test servo-control system as described in claim 1, it is characterized in that：The test cavity packet Containing shell and kernel, balancing gate pit is formed between shell and kernel, to providing circumferential load by note Rock And Soil, the shell specifically wraps Upper cover, steel cylinder, pedestal and snap ring are included, upper cover is set on the upside of steel cylinder, and bolt hole platform is added in steel cylinder upper surface, and bolt hole platform exists Snap ring platform is added in steel cylinder inner wall, steel cylinder lower face, and snap ring platform is in steel cylinder outer wall, using snap ring by steel cylinder and the close clamping lock of pedestal；

The pedestal is cylindrical in second step type, axial duct is drilled on two step fronts, and in snap ring platform lower part Side is radially drilled with horizontal pipe, is connected to corresponding axial duct, and oil fuel tube, Grouting Pipe, water injection pipe and biography are buried at pipeline Sensor circuit, the oil fuel tube between pedestal and monitoring platform are connected pressure transmitter；Getting out of a predicament or an embarrassing situation, front opens up card slot, with installation Extensometer；Sealing ring half slot is opened up in two step sides, is provided with sealing ring.

4. a kind of three-dimensional grouting model test servo-control system as claimed in claim 3, it is characterized in that：The kernel includes By note Rock And Soil, porous disc, seal disc, rubber tube and radial extensometer, porous disc, lower face are bonded by note Rock And Soil upper surface It is bonded pallet, pallet is bonded porous disc again, and seal disc is connect with Grouting Pipe, and Grouting Pipe passes through porous disc centre bore to be inserted by note rock Soil body central shaft hole, sealing side surface are close to porous disc, rubber sleeve will by note Rock And Soil and porous disc set inside it, pedestal with Another Grouting Pipe is threadedly coupled, and rubber sleeve covers on seal disc circumferential direction side, and the other end covers the small circumferential side of pedestal, both ends Junction is locked, and extensometer branch piece is distinguished on the corresponding card slot of inserted base, and measuring point is located in rubber tube at waist, to measure rubber The radial deformation of packing element；

It is remolded by disturbed soil by note Rock And Soil, central shaft opens up injected hole, and perforation is by note Rock And Soil, and porous disc is using saturating There is water work made of stones permeable impermeable slurry characteristic, center to open up slip casting aperture, and seal disc is in round pie, is opened up at central shaft Injected hole opens up water injection hole at three pitch-rows around injected hole, and opens up pipeline metallic channel in upper plane, is opened up on ring-like side Rubber ring half slot, radial extensometer are made of multiple extensometer branch pieces, and multiple extensometer branch piece measuring points are distributed on a circle, Monitor the radial deformation of cylindrical object.

5. a kind of three-dimensional grouting model test servo-control system as described in claim 1, it is characterized in that：The assembly sampling Platform, including mechanical arm, hoistable platform and hoisting component, hoistable platform are located at immediately below mechanical arm rocking arm operating area, lifting The flat surface of platform is horizontal with ground level, and mechanical arm is done by spindle box connection hoisting component drive steel cylinder to be rotated, is vertical or flat Shifting movement, hoistable platform drive pedestal and are moved up and down by note Rock And Soil, and mechanical arm matches realization assembly with hoistable platform Remold chamber and test cavity；Mechanical arm connects coring bit or chain saw by spindle box, drives their drilling soil bodys or cutting soil Body realizes mechanical sampling；

The mechanical arm includes concrete bed, foundation bolt, fixed seat, inner column, outer column, rocking arm and spindle box, coagulation More foundation bolts are buried in native pedestal straight down, are evenly arranged in circumferential direction, foundation bolt burial place and fixed seat lower edge Bolt hole is corresponding, and fixed seat is fixed on by foundation bolt on concrete bed, and inner column is connect with fixed seat, outer column set On inner column, outer column can be rotated horizontally around inner column, and rocking arm is vertical with outer column and is locked by cylindric locking device, Rocking arm can move vertically along outer column, spindle box along rocking arm horizontal guide slot horizontal movement, spindle box connection object pass through It cooperates between inner column, outer column, rocking arm and spindle box and realizes rotation, vertical or translational motion；Main shaft can on spindle box It drives coring bit to realize the drilling soil body, chain saw can also be driven to realize cutting soil；

Twice crossbeam is welded on the hoistable platform table top, carrying axle is welded on crossbeam, carrying axle is installed in carrying axle, and twice are horizontal Two row bearings are formed on beam, two row bearing spacing are equal with two row bearing spacing in shift unit；Pacify on bearing plate under forcing press Dress limit meter, makes the bearing that hoistable platform is raised in bearing and shift unit on crossbeam in same level, and limit is counted and risen Platform controller connection is dropped, ensures that displacement tablet is smoothly moved on hoistable platform out of forcing press；

The hoisting component, including steel cylinder plays hanging piece and semicircular cylinder plays hanging piece, it is in triangle claw-type structure that steel cylinder, which plays hanging piece, and three are hung Angle is 120 ° between arm, three arm end prepared screw-bolt holes on same circle, and with steel drum upper end bolt hole position phase It is corresponding；The other end intersects with other two arm end, and intersection is the pipe for connecting main shaft, and it is in herringbone that semicircular cylinder, which plays hanging piece, Structure, three one end prepared screw-bolt holes of arm are and opposite with half drum upper end bolt hole position on same isosceles triangle It answers；The other end intersects with other two arm end, and intersection is the pipe for connecting main shaft, and pipe axle center is located at isosceles triangle On center line intersection point.

6. a kind of three-dimensional grouting model test servo-control system as described in claim 1, it is characterized in that：The slip casting is supplied water Device, including slip casting unit, slip casting unit includes agitator tank, metering-type plunger pump, high-voltage tube, pressure transmitter and Electromagnetic Flow Meter, agitator tank mix cement and water form cement grout, and metering-type plunger pump pulp-absorbing pipe is put into agitator tank slurries, metering-type Plunger pump grout outlet uses high pressure by the pedestal inlet pipe of high-voltage tube joint test chamber between metering-type plunger pump and test cavity Pipe series connection pressure transmitter and electromagnetic flowmeter, to monitor pressure and flow into test cavity slurries；

Slurries pass through metering-type plunger pump, pressure transmitter and electromagnetic flowmeter, the rock of last injection testing intracavitary from agitator tank Slurry pressure and flow information are passed to monitoring platform, monitoring platform control metering by the soil body, pressure transmitter and electromagnetic flowmeter Formula plunger pump adjusts slurries and flow, forms slip casting servo-control system；

Agitator tank in slip casting unit is replaced with into water tank, slurries, which change, makees water, forms water supplying unit, equally carries out servo control to supplying water System realizes the random switching of constant pressure, permanent flow control.

7. a kind of three-dimensional grouting model test servo-control system as described in claim 1, it is characterized in that：The monitoring platform Including servo-fluid potential source, measure-controlling unit and acquisition process unit, servo-fluid potential source provide power source for slip casting water supply installation, Measure-controlling unit receives for measuring axially loaded strain gauge and linear displacement transducer, for measuring test cavity ring To the biography of the pressure transmitter of confining pressure, the pressure transmitter for measuring slip casting water supply installation pressure and flow and electromagnetic flowmeter Sensor signal, acquisition process unit acquire the sensor information and control control valve corresponding with sensor.

8. based on the test method of the three-dimensional grouting model test servo-control system as described in any one of claim 1-7, It is characterized in that：Include the following steps：

(1) the three-dimensional grouting model test servo-control system of connection composition；

(2) on displacement tablet, remodeling chamber is assembled using mechanical arm, it is mobile to shift in tablet to forcing press test space, it uses Filling equivalent dissipates soil to layer-compacting by several times, and elasticity modulus and the density compression with load cylinder according to undisturbed soil dissipate soil；

(3) it is matched using mechanical arm, semicircular cylinder and displacement tablet, dismounting and the assembling of test cavity chamber is carried out to remodeling chamber, even Connect the exterior line and circuit being connected with test cavity；

(4) initial size and increase and decrease gradient for setting confining pressure, axis pressure, grouting pressure and full water pressure, carry out circumferential load, wait enclosing Pressure carries out axially loaded, progress slip casting and full water after axial stress reaches initial value and stablizes after reaching initial value and stablizing, Stop slip casting after grouting parameter reaches slip casting requirement, full water parameter stops water of satisfying after reaching full water requirement, is stood after slip casting The grouting pipeline outside test cavity is cleaned, after water to be satisfied, first unloads axial stress, then unload circumferential confining pressure；

(5) to the soil body coring of grouting and reinforcing after testing, sample physical and mechanical property test is carried out.

9. test method as claimed in claim 8, it is characterized in that：It, will be in test cavity upper cover and remodeling chamber in the step (3) Terminal bolt ear is connected, and rises load cylinder and drives, and loading disc drives upper cover and remodeling chamber to rise to certain altitude, test cavity bottom Grouting Pipe is installed on seat, hung pedestal on mobile tablet using mechanical arm and is moved to immediately below remodeling chamber, decentralization remodeling Chamber makes underwire assembly and base contacts；Bonnet bolt in dismounting, rises load cylinder, and mobile displacement tablet makes remodeling chamber in mechanical arm In opereating specification, mechanical arm spindle box slings part using semicircular cylinder and connects a semicircular cylinder, dismounting remodeling chamber semicircular cylinder bolt, machine Tool armband move semicircular cylinder rotated, descending motion, so that semicircular cylinder is moved to its resettlement, likewise, another semicircular cylinder is moved To semicircular cylinder resettlement, underwire assembly upper pin is pulled up, ring plate is removed；

In the step (3), when assembling test cavity, floor installation sealing ring, seal disc installs sealing ring and Grouting Pipe；Soil body ring Rubber tube is put on to side, and porous disc on soil body upper end cover has installed the seal disc of Grouting Pipe on porous disc upper cap；Steel wire rope Winding tightens rubber tube both ends respectively, is sealed rubber tube；Circumferential extensometer is installed in pedestal card slot；In pedestal and seal disc Corresponding internal duct and circuit are installed on reserved pipeline；Hoistable platform drives the soil body and installing component declines, mechanical arm Hanging piece connection steel cylinder is played using steel cylinder and is sling right over steel cylinder to the soil body, is risen hoistable platform and is contacted to pedestal with steel cylinder；Card Ring locks pedestal and steel cylinder, removes steel cylinder and plays hanging piece, mobile displacement tablet drives test cavity to forcing press center；Loading disc Contact seal disc is dropped to, upper cover is connect and sealed with steel cylinder using high-strength bolt.