CN107957368A - Simulation tunnel passes through the experimental rig of multigroup bad ground - Google Patents
Simulation tunnel passes through the experimental rig of multigroup bad ground Download PDFInfo
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- CN107957368A CN107957368A CN201710943336.5A CN201710943336A CN107957368A CN 107957368 A CN107957368 A CN 107957368A CN 201710943336 A CN201710943336 A CN 201710943336A CN 107957368 A CN107957368 A CN 107957368A
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- turntable
- experiment casing
- platen
- gas
- tunnel
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
Abstract
The present invention provides the experimental rig that a kind of simulation tunnel passes through multigroup bad ground.The device includes：Turntable, experiment casing, transfer carriage and testing stand, turntable include horizontal rotating disc and vertical turntable, turntable bearing test babinet；The geological formations passed through according to tunnel, under horizontal rotating disc and vertical turntable coordinated, complete the laying of analog material rock stratum in experiment casing；Transfer carriage connects turntable and testing stand, and experiment casing is transported between turntable and testing stand；Testing stand is the multifunction test system controlled by computer, which can impose the analog material in experiment casing different external actions.Horizontal rotating disc, vertical turntable of the present invention by turntable, complete the laying of different occurrences analog material rock stratum, binding tests bench control system, sunykatuib analysis Tunnel Passing contain multigroup different occurrences, are associated with the complex geologic body of heterogeneous fluid, the influence for engineering construction construction.
Description
Technical field
The present invention relates to Tunnel Engineering technical field, more particularly to a kind of simulation tunnel to pass through the experiment of multigroup bad ground
Device.
Background technology
Recently as deepening continuously for Transportation Infrastructure Construction, Tunnel Engineering also welcome rare opportunity to develop and
Brand-new challenge.Unfavorable geological condition encountered in tunnel construction process is on the increase, and the risk faced is also on the rise.
Therefore, for tunnel high-ground stress, high hydraulic pressure, High-geotemperature underground heat, weakness, it is loose, containing complicated geological environments such as gas under apply
The problem of encountered in work, can make rational evaluation and be particularly important with prediction.Tunnel model test is with the theory of similarity
Based on, theory analysis and numerical computations, the possessed limitation of field test are avoided, can be comprehensive, intuitive and accurate prominent
Go out contradiction, a kind of research means of reflecting phenomena inner link.By tunnel model test, lifting people are for tunnel specific
The understanding of surrounding rock structure stress, deformation, destruction under environment etc., so as to development of research thinking, abundant achievement in research.
The research to Tunnel Passing complex geological condition is increased, there is important theory significance and realistic meaning.Particularly
Under the constantly overall background of lifting Southwestern China regional economy and infrastructure level, Tunnel Engineering construction is for this area
Develop most important.But topography and geomorphology and Geologic Structure Feature specific to Southwestern China area, make what Tunnel Engineering faced
Challenge unprecedented.At the same time, it is still insufficient on the research in terms of complex environment tunnel construction now.
At present, the major defect of indoor tunnel model test system of the prior art have it is following some：Worn on tunnel
Research more in terms of bad ground is insufficient；Pass through the rock stratum of multigroup different occurrences, country rock at the same time especially for Tunnel Engineering
The research of stress, deformation and pore pressure feature etc. under multiple physical field coupling is rarely reported.Therefore, for this
The research of class problem, the construction of corresponding model assay systems are urgently to be resolved hurrily.
The content of the invention
The embodiment provides the experimental rig that a kind of simulation tunnel passes through multigroup bad ground, to realize analysis
Under complex geological structure, influence that tunnel is laid in different lithology, the rock stratum of multigroup different occurrences.
To achieve these goals, this invention takes following technical solution.
A kind of simulation tunnel passes through the experimental rig of multigroup bad ground, including：Turntable, experiment casing, transfer carriage and
Testing stand, the turntable include horizontal rotating disc and vertical turntable, and the turntable carries the experiment casing, according to tunnel institute
The geological formations passed through horizontal rotating disc with horizontal direction laying is similar in the experiment casing under vertical turntable coordinated
Material, the angle of inclination of the analog material pass through described horizontal turn depending on the geological conditions that simulation tunnel passes through
Disk and vertical turntable adjust；
The transfer carriage connects the turntable and the testing stand, is transported between the turntable and the testing stand
The experiment casing；The testing stand is to the analog material rock stratum application effect in the experiment casing, to the analog material
Carry out the experiment that simulation tunnel passes through complex geologic body.
Further, the turntable includes base, vertical turntable, horizontal rotating disc, slide, push-pull rod and lock foot, described
Vertical turntable, horizontal rotating disc are arranged on the base, and the slide is connected with the horizontal rotating disc, the push-pull rod with it is described
Vertical turntable, horizontal rotating disc connection, the lock foot are connected with the fixed feet of the experiment casing, and the power of the turntable passes through
Base built-in gear pump is binded with the vertical red rail in the turntable back side and coordinates servo-control system to realize.
Further, the vertical turntable is using arc, hollow structure, and the thickness of the outer wall of the vertical turntable is big
In the numerical value of setting.
Further,, will according to rock stratum actual layer position relation when the tunnel axis direction of simulation is parallel with rock stratum direction
Analog material is layered in the experiment casing, horizontal laying.
Further, when the tunnel axis direction of simulation is intersected with rock stratum direction, according to tunnel with intersecting between rock stratum
Intersecting space angle and depth of stratum determine tilted stratum and the experiment casing inner wall intersection, by adjusting described perpendicular
Straight turntable, horizontal rotating disc are by after by the intersection Plane Rotation that a plurality of intersection is formed to horizontal position, by analog material in institute
State layering in experiment casing, horizontal laying；
When the tunnel axis of simulation intersects with the rock stratum direction of one or more, respective intersection is determined according to the above process
Plane, by adjusting vertical turntable, horizontal rotating disc by after each intersection Plane Rotation to horizontal position, then carries out the paving of analog material
If one of intersection plane corresponds to the laying of an analog material.
Further, the bottom of the experiment casing sets running part, piston shoes, and the experiment casing passes through the walking
Portion, piston shoes are walked between the turntable and the testing stand；The top of the experiment casing sets top compression and gas-liquid
Port, left end face set left part to pressurize and gas-liquid port, and its right end face sets right part pressurization and gas-liquid port.
Further, pre- subsystem is set in the inside of the experiment casing, the pre- subsystem include sidepiece section of jurisdiction,
Pull rod and thruster, section of jurisdiction, pull rod and the thruster at top, locating shaft and base, the base be used to support the left and right sides and
Section of jurisdiction, pull rod, thruster and the locating shaft at top, the section of jurisdiction at top and sidepiece is controlled by the pull rod of top and sidepiece respectively
Sedimentation and contraction, realize simulation tunnel digging process, controlled respectively by the pull rod of top and sidepiece top and sidepiece pipe
Displacement of the piece along headroom direction, the monitoring element and exterior numerical control network analysis tunnel that connecting inner is laid with advance are permitted in lining cutting
Perhaps force-bearing of surrounding rock mass characteristic, pore pressure size and distribution characteristics under deforming, the locating shaft is as the left and right sides and top
The mobile axis of thruster, amplitude size is strutted by the thruster at the left and right sides and top control pull rod.
Further, set respectively in the left end face of the experiment casing, its right end face, top end surface and rear portion section
Platen, front end face, bottom end face arrangement insulating layer, it is gentle that the shunting disk in the platen of left end face covers the left part pressurization
Liquid port, the shunting disk in the platen of its right end face cover the right part pressurization and gas-liquid port, in the platen of top end surface
Shunting disk covers the top compression and gas-liquid port, and the platen of rear portion end face is the active position of rear portion emptying port.
Further, the platen includes insulating layer, sealing ring, hot and cold pipe processed, leads Winchester disk and shunting disk, the heating
The inside of platen is arranged on cold pipe, is set in the upper and lower part of the hot and cold pipe processed and leads Winchester disk, the sealing ring is set
In the surrounding outer end face of platen, the shunting disk is arranged on the upper outer end face of platen, and the insulating layer is arranged under platen
Portion's outer end face；Remaining press plate structure of the platen in addition to shunting disk is directly fixedly connected with experiment casing, and each shunting disk exists
Four pin rods are arranged in corner, are connected with the reserved deep hole on remaining press plate structure, pin rod deepening hole is stretched under the action of polishing head
Contracting；Exterior compression system is acted on pressure on analog material through platen by pressure head, the hot and cold processed inside the platen
Pipe realizes the simulation of particular thermal force field, and the shunting disk is by inside the fluid injection analog material of specified pressure.
Further, the testing stand includes left part pressurization and gas-liquid termination, right part pressurize and gas-liquid termination, top add
Pressure and gas-liquid termination, rear part exhaust system, by left part pressurization and gas-liquid termination, right part pressurization and gas-liquid termination to experiment
Analog material in babinet applies the pressure and Fluid pressure of horizontal direction, by the top compression and gas-liquid termination to experiment
Analog material in babinet applies the pressure and Fluid pressure of vertical direction, by the rear part exhaust system to experiment casing
Inner air is taken out in advance, the left part pressurization and gas-liquid termination, right part pressurization and gas-liquid termination, top compression and gas-liquid termination
It is respectively acting on the shunting disk in the platen of left end face, its right end face and top end surface.
The embodiment of the present invention passes through in turntable it can be seen from the technical solution provided by embodiments of the invention described above
Horizontal rotating disc, vertical turntable are set, the analog material of different angle, different-thickness, different angle can be laid with, not only can be with mould
Intend analysis tunnel and horizontal layer, interlayer, mutual stratified rock between interactively, and can also simulation tunnel tilt,
It is vertical to pass through one or one or more shear-zone, by force weak intercalated layer, the geologic body such as differentiation band, so as to analyze intricately
Texture is made down, the influence that tunnel is laid in different lithology, the rock stratum of different occurrences.
The additional aspect of the present invention and advantage will be set forth in part in the description, these will become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Attached drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this
For the those of ordinary skill of field, without having to pay creative labor, other can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is the overall knot for the experimental rig that a kind of simulation tunnel provided in an embodiment of the present invention passes through multigroup bad ground
Composition；
Fig. 2 is a kind of structure chart of turntable provided in an embodiment of the present invention；
Fig. 3 is a kind of structure chart of transfer carriage provided in an embodiment of the present invention；
Fig. 4-1, Fig. 4-2 are a kind of structure chart of the experiment casing of double track tunnel arrangement provided in an embodiment of the present invention；
Fig. 5-1, Fig. 5-2 are a kind of structure chart of testing stand provided in an embodiment of the present invention；
Fig. 6 is a kind of structure chart of pre- subsystem provided in an embodiment of the present invention；
Fig. 7 is a kind of structure chart of platen provided in an embodiment of the present invention；
Fig. 8 is a kind of structure chart of shunting disk provided in an embodiment of the present invention；
Fig. 9 is a kind of structure chart of insulating layer provided in an embodiment of the present invention；
Figure 10 is a kind of structure chart of heat conducting pipe provided in an embodiment of the present invention；
Figure 11-Figure 13 is a kind of schematic diagram by intersection Plane Rotation to horizontal position process provided in an embodiment of the present invention.
Embodiment
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is same or like element.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the present invention, and is not construed as limiting the claims.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singulative " one " used herein, " one
It is a ", " described " and "the" may also comprise plural form.It is to be further understood that what is used in the specification of the present invention arranges
Diction " comprising " refer to there are the feature, integer, step, operation, element and/or component, but it is not excluded that in the presence of or addition
One or more other features, integer, step, operation, element, component and/or their groups.It should be understood that when we claim member
Part is " connected " or during " coupled " to another element, it can be directly connected or coupled to other elements, or there may also be
Intermediary element.In addition, " connection " used herein or " coupling " can include wireless connection or coupling.Wording used herein
"and/or" includes any cell of one or more associated list items and all combines.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology
Term and scientific terminology) there is the meaning identical with the general understanding of the those of ordinary skill in fields of the present invention.Should also
It should be appreciated that those terms such as defined in the general dictionary should be understood that with the context of the prior art
The consistent meaning of meaning, and unless defined as here, will not be explained with the implication of idealization or overly formal.
For ease of the understanding to the embodiment of the present invention, done further by taking several specific embodiments as an example below in conjunction with attached drawing
Explanation, and each embodiment does not form the restriction to the embodiment of the present invention.
According to shortcoming existing in the prior art, the embodiment of the present invention proposes a kind of simulation tunnel and passes through multigroup bad ground
Experimental rig, the main structure chart of the device is as shown in Figure 1, including turntable 1, transfer carriage 2, experiment casing 3 and testing stand
4, and other are digitized, automatic test elements, are closely connected between all parts, organic unity, form one completely
Pilot system.
(1) turntable
Vertical turntable is designed using arc shape in turntable, and use is hollow, the structure of heavy wall, i.e., the outer wall of vertical turntable
Thickness is more than the numerical value of setting, so as to reduce the weight of turntable.
Effect：The initial carrying platform of experiment casing, completes laying of the analog material in babinet.Essence is to pass through rotation
The horizontal direction that the horizontal rotating disc of platform, vertical turntable complete to tilt analog material layer is laid with.Above-mentioned analog material is simulation tunnel
Pass through the corresponding rock stratum of complex geological condition.
Function：Different angle, different-thickness, the analog material of different angle are laid with, analog material is tilted along tunnel axis
It is laid with, is the key that follow-up simulation tunnel passes through complex geological condition.Not only can be with sunykatuib analysis tunnel and horizontal layer, folder
Layer, the interactively between mutual stratified rock, and can also simulation tunnel tilt, it is vertical pass through one or one or more
Shear-zone, weak intercalated layer, the geologic body such as strong differentiation band.Fig. 2 is a kind of structure chart of turntable provided in an embodiment of the present invention,
Wherein all parts are as described in Table 1.
Table 1
The turntable includes base, vertical turntable, horizontal rotating disc, slide, push-pull rod and locks foot, the vertical turntable,
Horizontal rotating disc is arranged on the base, and the slide is connected with the horizontal rotating disc, the push-pull rod and the vertical turntable,
Horizontal rotating disc connects, and the lock foot is connected with the fixed feet of the experiment casing.
Rotary display stand structure inclusion relation：Base mainly includes the vertical turntable of arc and built-in driving device, and turntable moves
Mainly binded by base built-in gear pump with the vertical red rail in the turntable back side and coordinate servo-control system to give reality in power source
It is existing.The vertical turntable connection horizontal rotating disc of arc and its horizontal gear group driving device.
Function is described in detail：Turntable completes the laying of analog material
Running order：Loose distance rod-horizontal rotating disc rotates-locks foot and fixes-turntable rotation vertically
Connection relation：Distance rod -- preceding (rear) section fixed feet；Lock foot-left side (right side) section fixed feet.
(2) transfer carriage
Effect：The bridge of turntable and testing stand is connected, carries and transports experiment casing.Fig. 3 carries for the embodiment of the present invention
A kind of structure chart of the transfer carriage supplied, wherein all parts are as described in Table 2.
Table 2
(3) experiment casing
Effect：Complete the laying and experiment carrying of analog material
Function：By the gear of the bottom of box, piston shoes, experiment casing can between turntable and testing stand automatically walk.
Fig. 4-1, Fig. 4-2 are a kind of structure chart of the experiment casing of double track tunnel arrangement provided in an embodiment of the present invention, wherein each portion
Part is as described in Table 3.
Table 3
Experiment casing includes top compression and gas-liquid port 15, left part pressurization and gas-liquid port 16, right part pressurization and gas-liquid
Port 17, rear portion emptying port 18, can substitute transparent front end window 19, fixed feet 20, piston shoes 21 and running part 22.
The bottom of the experiment casing sets running part 22, piston shoes 21, and the experiment casing passes through the running part 22, cunning
Boots 21 are walked between turntable and testing stand；The top end surface of experiment casing sets top compression and gas-liquid port 15, left side
End face sets left part to pressurize and gas-liquid port, and its right end face sets right part pressurization and gas-liquid port.
Platen is arranged in the left and right of experiment casing, top, rear four end faces, and insulating layer is only arranged in preceding, two, bottom end face.Afterwards
Portion's emptying system has a style of one's own with testing stand, and emptying port organization is similar to left and right, crestal gas injection port, after testing stand
Portion's square platform, column structure system.The effect of port is emptied primarily in the analog material of depletion test box house
Portion's gas, to be conducive to note the injection of air-liquid system fluid in multi- scenarios method experiment.
(4) testing stand
Fig. 5-1, Fig. 5-2 are a kind of structure chart of testing stand provided in an embodiment of the present invention, are included in testing stand each
Component is as described in Table 4.
Table 4
Function：Carry out various experiments.
(1) multiple physical field coupling analysis：Fluid structurecoupling (Gu gas+, Gu liquid+, Gu gas+liquid+)；THM couples (thermal field+stream
Body field+stress field)
(2) various ambient stress sunykatuib analyses
Principle：By left part pressurization and gas-liquid termination 29, right part pressurization and gas-liquid termination 28 in experiment casing
Analog material applies the pressure and Fluid pressure of horizontal direction, by top compression and gas-liquid termination 30 to the phase in experiment casing
Apply the pressure and Fluid pressure of vertical direction, the inner air by the rear part exhaust system 31 to experiment casing like material
Taken out in advance.
Left part pressurization and gas-liquid termination 29, right part pressurization and gas-liquid termination 28 and top compression and gas-liquid termination 30 above
It is respectively acting on the shunting disk in the platen of left end face, its right end face and top end surface.
Experiment casing inner air is taken out in advance by the rear part exhaust system 31 of testing stand, is injected easy to fluid similar
Material internal, is conducive to the development of multi- scenarios method experiment.By the accurate control of digital platform, pressurized termination is to analog material
Apply different frequency, various forms of pressure (stepped, sine and cosine etc.), simulation tunnel in the case where being subject to outer force-disturbance for a long time,
Tunnel surrounding architectural characteristic and supporting construction situation of change.By 9 groups of top pressurization termination, apply not reciprocity pressure, simulation
Change in surrounding rocks situation of the tunnel in the case of biasing force.
(5) pre- subsystem
Pre- subsystem is arranged on inside experiment casing, is detachable structure.Fig. 6 is provided in an embodiment of the present invention a kind of pre-
The structure chart of subsystem, wherein all parts are as described in Table 5.
Table 5
The single structure of pre- subsystem mainly by the section of jurisdiction of sidepiece (left and right sides), pull rod and thruster, the section of jurisdiction at top,
Pull rod and thruster, locating shaft and base are formed.
Effect：Analog material is laid with experiment casing, tunnel excavation section is formed by pre- subsystem.
Function：By the top and section of jurisdiction of sidepiece, top and sidepiece thruster, stable pre- excavation supporting system is formed.
The sedimentation of the section of jurisdiction at top and sidepiece and contraction are controlled come simulation tunnel digging process by the pull rod of top and sidepiece respectively,
Displacement of the section of jurisdiction at top and sidepiece along headroom direction is controlled by the pull rod of top and sidepiece respectively, reaches sunykatuib analysis
The situation of change of pressure from surrounding rock, pore pressure size and distribution characteristics of the tunnel in the case where lining cutting allows deflection etc..
The base is used to support section of jurisdiction, pull rod and the thruster of the left and right sides, section of jurisdiction, pull rod and the thrust at top
Device, locating shaft, the mobile axis for functioning as sidepiece, top thruster of locating shaft, by strutting for thruster control pull rod
Amplitude size, therefore locating shaft also serves as load-carrying construction.
(6) platen
In the left end face of the experiment casing, its right end face, top end surface and rear portion section, platen, left side are set respectively
The left part of shunting disk covering experiment casing in the platen of end face pressurizes and gas-liquid port, the shunting disk in the platen of its right end face
The right part for covering experiment casing pressurizes and gas-liquid port, and the top of the shunting disk covering experiment casing in the platen of top end surface adds
Pressure and gas-liquid port, the platen of rear portion end face is the active position of rear portion emptying system port.Platen is remaining in addition to shunting disk
Press plate structure is directly fixedly connected with experiment casing, and each shunting disk arranges four pin rods, the remaining structure with platen in corner
The reserved deep hole of layer is connected, and under the action of polishing head, pin rod is along deep hole telescopic moving, while realizing that shunting disk moves freely
Ensure its close contact with analog material.
The structure of experiment casing from outside to inside is:Box body wall-platen -- (analog material), subsequent figures be refer in particular to it is left and right
6 groups of polishing heads of the platen of section, corresponding testing stand or so, shunting disk built in 6 groups of platens；The pressure arranged is needed at the top of experiment casing
Disk, platen includes 9 component flow tables with the left and right category of babinet seemingly, inside leads temperature and manages still serpentine-like arrangement.Platen includes three
Pressurization port direction, Fig. 7 is a kind of structure chart of platen provided in an embodiment of the present invention, wherein all parts such as table 6 below institute
Show.
Table 6
Fig. 8 is a kind of structure chart of shunting disk provided in an embodiment of the present invention, and Fig. 9 is one kind provided in an embodiment of the present invention
The structure chart of insulating layer, Figure 10 are a kind of structure chart of heat conducting pipe provided in an embodiment of the present invention.Platen is rectangular parallelepiped structure, bag
Insulating layer 43 is included, sealing ring 44, heats (cold) pipe 45, leads Winchester disk 46 and shunting disk 47, and heating (cold) pipe 45 is arranged on platen
Inside, sets in the upper and lower part of heating (cold) pipe 45 and leads Winchester disk 46, and sealing ring 44 is arranged on the surrounding outer end face of platen, point
Flow table 47 is arranged on the upper outer end face of platen, and insulating layer 43 is arranged on the lower outer face of platen.Using follow-up platen attached drawing as
With reference to pressure head is not to directly act on platen entirety, acts on the shunting disk in platen internal structure.
Effect：Exterior compression system acts on shunting disk deep gouge by pressure head through platen through hole, extrudes shunting disk by pressure
Act on analog material, the simulation of particular thermal force field is realized by heating (cold) pipe inside platen, by platen front end
Shunting disk the fluid of specified pressure will be noted by pressure head end face built-in fluid passage, uniformly, smoothly in injection analog material
Portion.Between heating (cold) pipe in each platen, connected by flexible bite type.
The course of work that above-mentioned simulation tunnel passes through the experimental rig of complex geological condition is as follows：
(1) it is laid with link
According to the actual geological environment in tunnel, with reference to the principle of similitude, the analog material of special ratios is prepared.Then it is laid with similar
Material, the process of deployment are related to turntable and experiment casing, mainly there is following steps：
First, connected by the fixed feet of experiment casing and the lock foot of turntable, stability test babinet is on turntable.
When preventing that follow-up turntable from being rotated, experiment casing departs from horizontal rotating disc surface.
Secondly, according to the relation between tunnel axis direction and rock stratum tendency, two kinds of situations are roughly divided into：
1), at this time only need to be according to rock stratum actual layer position relation when tunnel axis direction is parallel with rock stratum direction, will be similar
Material is layered in experiment casing, horizontal laying.
2) when tunnel axis direction is intersected with rock stratum direction, need to complete the laying of analog material by turntable at this time.It is first
First determine real space layer position relation of the tunnel with intersecting rock stratum, determine intersecting space angle, depth of stratum；Then in chamber
Internal wall, demarcates the accurate location of intersecting rock stratum and inner wall, namely the intersection of definite tilted stratum and cabinet wall.By adjusting
The vertical turntable, horizontal rotating disc are by after by the intersection Plane Rotation that a plurality of intersection is formed to horizontal position, by similar material
Material layering, horizontal laying in the experiment casing.Analog material is the bottom for being layed in box house；The work of slide and pull rod
Turntable is transported to or pushes away out with what mainly compatibility test babinet running part realized babinet.It is above-mentioned by intersection Plane Rotation
To horizontal position process schematic diagram as shown in figures 11-13, mainly given by the vertical turntable of arc, the horizontal rotating disc of turntable
Realize, the inclination analog material rock stratum that will be laid with by horizontal rotating disc first horizontally rotates, make rock stratum tendency with it is vertical
The Plane of rotation of turntable is parallel, that is, the inclined rock bed being laid with is mutually orthogonal with the Plane of rotation of vertical turntable, and passes through fixation
Babinet is fixed on turntable by foot, lock leg structure, then integrally rotates experiment casing through vertical turntable, makes tilted stratum
Horizontal position is gone to, and then completes the laying of follow-up analog material.
When tunnel axis intersects with the complex formation of one or more, respective friendship can also be determined according to the above process
Line plane, by adjusting vertical turntable, horizontal rotating disc by after each intersection Plane Rotation to horizontal position, then carries out analog material
It is laid with.One intersection plane corresponds to the laying of an analog material, and multiple intersection planes need to be laid with multiple analog material.
(2) walking link
By turntable to testing stand：Complete in experiment casing after the laying of analog material, the push-pull rod of rotated
Promote experiment casing to remove horizontal rotating disc, after gear, piston shoes by experiment casing itself running part, advance to experiment through transfer carriage
Before platform, then the load push-pull through testing stand, it is pulled to landing base.
By testing stand to turntable：With the above process on the contrary, load push-pull promotes experiment casing, landing base is removed, through turning
Frame is transported to turntable, horizontal rotating disc is pulled to through push-pull rod.
(3) link is tested
After above-mentioned two link is completed, experiment casing is lifted to pressurization height, tool by the landing platform of testing stand
Body experiment link should be by depending on the purpose tested.
Temperature field：By (cold) pipe of the heating inside platen, realization is adjusted through exterior temperature control system.
Seepage field：By exterior digital control platform, left and right, top compression termination built-in channel of the fluid through testing stand are noted
Enter.
Stress field：By left and right, the top compression system loads of testing stand.
Final test effect, is that the synthesis of above-mentioned each structure function shows actually.
In conclusion the embodiment of the present invention completes different angles by setting horizontal rotating disc, vertical turntable in turntable
The laying of degree, different-thickness, different angle analog material rock stratum, not only can be with sunykatuib analysis tunnel and horizontal layer, interlayer, mutually
Interactively between stratified rock, multigroup different occurrences can be contained with sunykatuib analysis Tunnel Passing, are associated with heterogeneous fluid
Complex geologic body, the influence for engineering construction construction, and can also simulation tunnel tilt, it is vertical pass through one or
The shear-zone of one or more, weak intercalated layer, the strong construction for breaking up the complex geologic bodies such as band, analysis, different lithology, different rock-layers production
The influence that shape (different layers position, different angle, different-thickness) lays tunnel.
The embodiment of the present invention, can be to mono-/bis-line tunnel excavation power by reserving tunnel support system in experiment casing
Learn characteristic and thus caused country rock convergent deformation feature is analyzed；The convergence for being precisely controlled reserved supporting construction becomes
Shape, can study the pore pressure in tunnel surrounding, force-bearing of surrounding rock mass and deformation behaviour, supporting construction stress etc.；
Influencing each other between analysis double track tunnel, preferred arrangement spacing.
Testing stand in the embodiment of the present invention can apply multi- scenarios method (temperature field+seepage field+stress field), wherein fluid
Field includes：Water body either gas or the two have., can be to tunnel by varying the pressuring method of testing stand compression system
The problems such as bias, is analyzed, analysis tunnel internal surrounding rock structure, the stress of supporting construction.
One of ordinary skill in the art will appreciate that：Attached drawing is the schematic diagram of one embodiment, module in attached drawing or
Flow is not necessarily implemented necessary to the present invention.
One of ordinary skill in the art will appreciate that：The component in device in embodiment can describe to divide according to embodiment
It is distributed in the device of embodiment, respective change can also be carried out and be disposed other than in one or more devices of the present embodiment.On
The component for stating embodiment can be merged into a component, can also be further split into multiple subassemblies.
Each embodiment in this specification is described by the way of progressive, identical similar portion between each embodiment
Divide mutually referring to what each embodiment stressed is the difference with other embodiment.Especially for device or
For system embodiment, since it is substantially similar to embodiment of the method, so describing fairly simple, related part is referring to method
The part explanation of embodiment.Apparatus and system embodiment described above is only schematical, wherein the conduct
The unit that separating component illustrates may or may not be it is physically separate, can be as the component that unit is shown or
Person may not be physical location, you can with positioned at a place, or can also be distributed in multiple network unit.Can root
Factually border needs to select some or all of module therein realize the purpose of this embodiment scheme.Ordinary skill
Personnel are without creative efforts, you can to understand and implement.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, the change or replacement that can readily occur in,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with scope of the claims
Subject to.
Claims (10)
1. a kind of simulation tunnel passes through the experimental rig of multigroup bad ground, it is characterised in that including：Turntable, experiment casing,
Transfer carriage and testing stand, the turntable include horizontal rotating disc and vertical turntable, and the turntable carries the experiment casing, root
According to the geological formations that tunnel is passed through under horizontal rotating disc and vertical turntable coordinated the horizontal direction in the experiment casing
Analog material is laid with, the angle of inclination of the analog material passes through institute depending on the geological conditions that simulation tunnel passes through
Horizontal rotating disc and vertical turntable are stated to adjust；
Shown transfer carriage connects the turntable and the testing stand, between the turntable and the testing stand described in transhipment
Experiment casing；The testing stand carries out the analog material analog material rock stratum application effect in the experiment casing
Simulation tunnel passes through the experiment of complex geologic body.
2. device according to claim 1, it is characterised in that the turntable includes base, vertical turntable, level and turns
Disk, slide, push-pull rod and lock foot, the vertical turntable, horizontal rotating disc are arranged on the base, the slide and the level
Turntable connects, and the push-pull rod is connected with the vertical turntable, horizontal rotating disc, the lock foot and the fixed feet of the experiment casing
Connection, the power of the turntable are binded with the vertical red rail in the turntable back side by base built-in gear pump and coordinate SERVO CONTROL
System is realized.
3. the apparatus of claim 2, it is characterised in that the vertical turntable is using arc, hollow structure, and institute
The thickness for stating the outer wall of vertical turntable is more than the numerical value of setting.
4. device according to claim 3, it is characterised in that when the tunnel axis direction of simulation is parallel with rock stratum direction
When, according to rock stratum actual layer position relation, analog material is layered in the experiment casing, horizontal laying.
5. device according to claim 3, it is characterised in that when the tunnel axis direction of simulation is intersected with rock stratum direction
When, tilted stratum and the experiment casing are determined with intersecting intersecting space angle and depth of stratum between rock stratum according to tunnel
The intersection of inner wall, the intersection Plane Rotation that will be formed by adjusting the vertical turntable, horizontal rotating disc by a plurality of intersection
To after horizontal position, analog material is layered in the experiment casing, horizontal laying；
When the tunnel axis of simulation intersects with the rock stratum direction of one or more, determine that respective intersection is put down according to the above process
Face, by adjusting vertical turntable, horizontal rotating disc by after each intersection Plane Rotation to horizontal position, then carries out the paving of analog material
If one of intersection plane corresponds to the laying of an analog material.
6. device according to any one of claims 1 to 5, it is characterised in that the bottom of the experiment casing sets walking
Portion, piston shoes, the experiment casing are walked by the running part, piston shoes between the turntable and the testing stand；It is described
The top of experiment casing sets top compression and gas-liquid port, and left end face sets left part to pressurize and gas-liquid port, its right end face
Right part is set to pressurize and gas-liquid port.
7. device according to claim 6, it is characterised in that pre- subsystem, institute are set in the inside of the experiment casing
Stating pre- subsystem includes section of jurisdiction, pull rod and the thruster of sidepiece, section of jurisdiction, pull rod and the thruster at top, locating shaft and base, institute
State base be used to support the left and right sides and top section of jurisdiction, pull rod, thruster and locating shaft, by the pull rod of top and sidepiece come
The sedimentation and contraction of control top and the section of jurisdiction of sidepiece respectively, realizes simulation tunnel digging process, passes through the drawing of top and sidepiece
Bar controls the displacement of top and the section of jurisdiction of sidepiece along headroom direction, the monitoring element and outside that connecting inner is laid with advance respectively
Digital control system analyzes force-bearing of surrounding rock mass characteristic, pore pressure size and distribution characteristics of the tunnel in the case where lining cutting allows deformation, described fixed
Position axis is as the left and right sides and the mobile axis of the thruster at top, by the support of the thruster at the left and right sides and top control pull rod
Open-width degree size.
8. device according to claim 7, it is characterised in that in the left end face, its right end face, top of the experiment casing
End surface and rear portion section set platen respectively, front end face, bottom end face arrangement insulating layer, point in the platen of left end face
Flow table covers the left part and pressurizes and gas-liquid port, and the shunting disk in the platen of its right end face covers the right part pressurization and gas-liquid
Port, the shunting disk in the platen of top end surface cover the top compression and gas-liquid port, and the platen of rear portion end face is rear portion
Empty the active position of port.
9. device according to claim 8, it is characterised in that the platen includes insulating layer, sealing ring, hot and cold processed
Manage, lead Winchester disk and shunting disk, the hot and cold pipe processed is arranged on the inside of platen, in the upper and lower part of the hot and cold pipe processed
Winchester disk is led in setting, and the sealing ring is arranged on the surrounding outer end face of platen, and the shunting disk is arranged on the upper outer end face of platen,
The insulating layer is arranged on the lower outer face of platen；Remaining press plate structure of the platen in addition to shunting disk is directly and chamber
Body is fixedly connected, and each shunting disk arranges four pin rods in corner, is connected with the reserved deep hole on remaining press plate structure, is pressurizeing
Pin rod deepening hole is stretched under the action of head；Exterior compression system is acted on pressure on analog material through platen by pressure head,
Hot and cold pipe processed inside the platen realizes the simulation of particular thermal force field, and the shunting disk notes the fluid of specified pressure
Enter inside analog material.
10. device according to claim 9, it is characterised in that the testing stand include left part pressurization and gas-liquid termination,
Right part pressurizes and gas-liquid termination, top compression and gas-liquid termination, rear part exhaust system, passes through left part pressurization and gas-liquid end
Head, right part pressurization and gas-liquid termination apply the analog material in experiment casing the pressure and Fluid pressure of horizontal direction, pass through
The top compression and gas-liquid termination apply the analog material in experiment casing the pressure and Fluid pressure of vertical direction, pass through
The rear part exhaust system takes out the inner air of experiment casing in advance, and the left part pressurization and gas-liquid termination, right part pressurize
It is respectively acting on gas-liquid termination, top compression and gas-liquid termination in the platen of left end face, its right end face and top end surface
On shunting disk.
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