CN206504955U - Tunnel analog simulation Plane Strain Test platform - Google Patents

Tunnel analog simulation Plane Strain Test platform Download PDF

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Publication number
CN206504955U
CN206504955U CN201621496779.1U CN201621496779U CN206504955U CN 206504955 U CN206504955 U CN 206504955U CN 201621496779 U CN201621496779 U CN 201621496779U CN 206504955 U CN206504955 U CN 206504955U
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China
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testing stand
main frame
side beam
stand main
inner chamber
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CN201621496779.1U
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Chinese (zh)
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洛锋
崔景昆
郭利军
王同杰
王凯
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Hebei University of Engineering
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Hebei University of Engineering
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Abstract

A kind of tunnel analog simulation Plane Strain Test platform, including testing stand main frame and pressure cell, also include 2 sets of gas pressurization systems, testing stand main frame includes base, bottom girder, left side beam, right side beam, front apron, rear baffle, back timber, a plurality of preceding reinforcement, a plurality of rear reinforcement, poly (methyl methacrylate) plate and 3 air bags, excavation hole is provided with poly (methyl methacrylate) plate, correspond to excavate on rear baffle and be provided with multiple wire feeding holes at hole, the both sides and top position of testing stand main frame inner chamber are provided with 3 air bags, air bag positioned at testing stand main frame inner chamber both sides connects the gas outlet of wherein a set of gas pressurization system by breather adapter, air bag above testing stand main frame inner chamber connects the gas outlet of another set of gas pressurization system by breather adapter.Its advantage is, easy to operate, and loading is convenient, and load capability is big, and has admirably reached the requirement for pressing loading, and flexibly, perspectivity is good, and analog material air-dry time is short, and test speed is fast for load mode.

Description

Tunnel analog simulation Plane Strain Test platform
Technical field
The utility model is related to a kind of Plane Strain Test platform, particularly a kind of tunnel analog simulation Plane Strain Test Platform, the simulated test for carrying out deformation of the surrounding rock in tunnel destruction.
Background technology
Study the deformation-failure character and process of high-ground stress roadway surrounding rock has to the actual roadway surrounding rock control of colliery scene Important meaning.By analog material plane strain analog simulation experimental study, live country rock is simulated to a certain extent Matter, excavation order, original crustal stress states and boundary condition, by effective displacement and stress, strain testing means, to score The overall process that roadway surrounding rock is destroyed under different support forms is analysed, certain reference can be provided to control deformation of the surrounding rock in tunnel destruction.
At present, it is domestic mainly to have plane stress testing stand and three-dimensional geological mechanics using the equipment for carrying out equivalent material simulating Testing stand.For plane stress testing stand, it is actual closer to colliery scene not as Plane Strain Test platform.Existing three-dimensional geological Mechanical test platform be generally used for stope simulation when design size it is relatively large, if for roadway damage characteristic simulation modeling, take Work, it is time-consuming, take material.Further, since analog material modeling after generally require it is air-dried, using large scale testing stand air-dry time mistake The even up to several months that is long, having, roadway deformation failure test of simulation is caused to take huge.Meanwhile, existing plane stress examination Testing platform and three-dimensional geological mechanical test platform is pressurizeed using jack or lever mostly, and model structure is complicated, and experiment support body is flexible Property it is poor, load it is difficult and limited in one's ability, load mode is single, be typically not easy to load inclined seam or set internal structure. It is the deficiencies in the prior art above.
Utility model content
The purpose of this utility model is:A kind of tunnel analog simulation Plane Strain Test platform, test platform structure letter are provided Single, with low cost, processing is simple, easy to operate, and loading is convenient, and load capability is big, and flexibly, perspectivity is good for load mode, it is easy to Observation, analog material air-dry time is short, and test speed is fast, to overcome the deficiencies in the prior art.
The purpose of this utility model can be realized by following technical proposals:
This tunnel analog simulation Plane Strain Test platform, including testing stand main frame and pressure cell, it is characterized in that:Also include 2 sets of gas pressurization systems, the testing stand main frame includes base, bottom girder, left side beam, right side beam, front apron, rear baffle, Back timber, a plurality of preceding reinforcement, a plurality of rear reinforcement, poly (methyl methacrylate) plate and 3 air bags, base is fixed on the bottom of bottom girder, the bottom of at Arranged on left and right sides position on beam, is respectively fixed with leading flank, the trailing flank point of left side beam and right side beam, left side beam and right side beam It is not connected with front apron and rear baffle, the lower end of front apron and rear baffle is in contact with bottom girder respectively, the centre of front apron Window is provided with, a plurality of preceding reinforcement is horizontally arranged at interval on front apron, and the top and 2 preceding reinforcements of bottom are right respectively Should be in the upper edge of front apron middle window and lower edge, a plurality of rear reinforcement is horizontally arranged at interval on rear baffle, poly (methyl methacrylate) plate On have lug boss, poly (methyl methacrylate) plate is embedded into the window in the middle of front apron by its lug boss, four sides of poly (methyl methacrylate) plate with Front apron is bolted to connection, wherein, the upper and lower both sides of poly (methyl methacrylate) plate also respectively with before the top and bottom 2 Reinforcement is bolted to connection together, and excavation hole is provided with poly (methyl methacrylate) plate, is corresponded on rear baffle and is excavated hole Place is provided with multiple wire feeding holes, and back timber is bolted the top in left side beam and right side beam, bottom girder, left side beam, right side beam, preceding Baffle plate and poly (methyl methacrylate) plate, rear baffle and back timber surround composition testing stand main frame inner chamber, the two of testing stand main frame inner chamber Side and top position are loaded in testing stand main frame inner chamber provided with 3 air bags, similar material model, and positioned at 3 air bags and In space between bottom girder, pressure cell is embedded in inside similar material model, and the electrical connection of pressure cell is drawn by multiple wire feeding holes, A breather adapter mounting hole, the air bag positioned at testing stand main frame inner chamber both sides are equipped with left side beam, right side beam and back timber The gas outlet of wherein a set of gas pressurization system is connected by breather adapter, the air bag above testing stand main frame inner chamber leads to Cross the gas outlet that breather adapter connects another set of gas pressurization system.
Testing stand main frame described in the utility model also includes two fixed blocks, right baffle-plate and right shell body, two fixations Block is correspondingly arranged at the inner top side position of left side beam and right side beam, respectively positioned at the 2 of the side position of testing stand main frame inner chamber two Above individual air bag, and it is located at respectively under the air bag arranged on left and right sides of testing stand main frame inner chamber top position, two fixed blocks Slot I is equipped with end face in the outer part, corresponding with the slot I on two fixed block lower surfaces left and right two are provided with bottom girder Individual slot II, when constructing similar material model, right baffle-plate is inserted into fixed block lower surface slot I and bottom girder on the inside of left side beam In the slot II of upper left side, right shell body is inserted into the slot on right side on fixed block lower surface slot I and the bottom girder on the inside of right side beam In II.
The center of circle of the multiple wire feeding holes of the utility model is distributed on the circumference of same imaginary circles, the center of circle of imaginary circles and rear gear The center of circle that hole is excavated on plate is corresponding.
Wire feeding hole described in the utility model has 20.
A diameter of 220mm of imaginary circles described in the utility model, a diameter of 10mm of each wire feeding hole.
Often set gas pressurization system of the present utility model is by nitrogen supercharging automatic control system, transfer tube and oil-free air pressure Contracting machine is constituted, and the air inlet of nitrogen supercharging automatic control system connects the gas outlet of transfer tube by breather adapter, transfer tube Air inlet connects the gas outlet of oil-free air compressor by breather adapter;Air bag positioned at testing stand main frame inner chamber both sides leads to The gas outlet that breather adapter connects wherein a set of gas pressurization system nitrogen supercharging automatic control system is crossed, positioned at testing stand main body Air bag above frame inner chamber connects the outlet of another set of gas pressurization system nitrogen supercharging automatic control system by breather adapter Mouthful.
Preceding reinforcement of the present utility model has 4;Reinforcement has 4 afterwards.
Left side beam and right side beam of the present utility model are channel-section steel structure, and the notch of left side beam and right side beam is away from experiment Platform main frame inner chamber;Bottom girder by notch towards testing stand main frame inner chamber channel-section steel and the cement entity structure that is cast in channel-section steel groove Into.
Each air bag of the present utility model is flat rectangular shape air bag, and its surrounding side is folding face, and its is upper and lower Face is plane, and it is provided with breather adapter interface above.
Its above and below of each air bag of the present utility model is made by pressure-resistant soft rubber material, its surrounding side folding Face is by thickness is small thereon, material thickness used below pressure-resistant soft rubber material is made.
The utility model has the advantages that:1) the tunnel analog simulation Plane Strain Test platform coordinates is increased using air bag, gas Pressure device is loaded, and can be given full play to air bag and be pressed loading and various axially loaded performances, carries out such as axle pressure gradient loading, simulation is not With the failure and deformation of surrounding rocks feature in buried depth tunnel;Also can voltage stabilizing carry out tunnel creep test, solve the experiment of conventional analog simulation Middle lever-loading is limited in one's ability, the defect of jack loading voltage regulation performance difference;Left and right sides air bag can be to similar materials Right boundary carries out confined pressure restriction, and more closing to reality simulates the condition in tunnel;2) testing stand is in inflation, each air bag 14 Its above and below can uniformly open expansion, admirably reach the requirement for pressing loading;3) large scale plane strain mould is used Type carries out tunnel simulation, can effectively observe the failure and deformation of surrounding rocks feature in tunnel while enough stress loadings are loaded With surrouding rock stress situation of change;Testing stand materials are few, and vertical and horizontal two kinds of multi-forms, loading side can be used in loading process Flexibly, testing stand mobility is good, greatly shortens the modelling cycle, and save human and material resources for formula;4) testing stand is built-in Similar material model small volume, analog material air-dry time is short, it is ensured that the reasonable time allotment of multiple Experimental Comparison groups, reduces Downtime;And because the testing stand cost is relatively low, processing is simple, therefore multiple identical test platforms can be made, accelerate examination Test speed;5) due to being had an X-rayed using lucite, therefore the accuracy of displacement and crack observation can be effectively ensured.
In a word, the utility model is simple in construction, with low cost, and processing is simple, easy to operate, and loading is convenient, load capability Greatly, the requirement for pressing loading and has admirably been reached, flexibly, perspectivity is good, it is easy to observe, when analog material is air-dried for load mode Between it is short, save human and material resources, test speed is fast, can simulate the failure and deformation of surrounding rocks feature in different buried depth tunnel, also can voltage stabilizing Tunnel creep test is carried out, is a kind of preferable tunnel analog simulation Plane Strain Test platform.
Brief description of the drawings
Fig. 1 is broken section overall structure diagram of the present utility model;
Fig. 2 is the main view broken section structural representation of testing stand main frame;
Fig. 3 is the side view broken section structural representation of testing stand main frame;
Fig. 4 is the backsight structural representation of testing stand main frame;
Fig. 5 is removed after poly (methyl methacrylate) plate 6, a plurality of preceding reinforcement 10 and a plurality of rear reinforcement 19, testing stand main frame Overlooking the structure diagram;
Fig. 6 is the main view section structure schematic diagram of testing stand main frame air bag.
Embodiment
As shown in figures 1 to 6, this tunnel analog simulation Plane Strain Test platform, including testing stand main frame and pressure cell, its It is characterized in:Also include 2 sets of gas pressurization systems, the testing stand main frame includes base 16, bottom girder 1, left side beam 2, right side Beam 3, front apron 4, rear baffle 5, back timber 15, a plurality of preceding reinforcement 10, a plurality of rear reinforcement 19, poly (methyl methacrylate) plate 6 and 3 air bags 14, base 16 is fixed on the bottom of bottom girder 1, the arranged on left and right sides position on bottom girder 1, is respectively fixed with left side beam 2 and right side beam 3, leading flank, the trailing flank of left side beam 2 and right side beam 3 are connected with front apron 4 and rear baffle 5, front apron 4 and rear gear respectively The lower end of plate 5 is in contact with bottom girder 1 respectively, and the centre of front apron 4 is provided with window, and a plurality of preceding reinforcement 10 is horizontally arranged at interval On front apron 4, and the top and the preceding reinforcement 10 of bottom 2 correspond respectively to upper edge and the lower edge of the middle window of front apron 4, A plurality of rear reinforcement 19 is horizontally arranged at interval on rear baffle 5, there is lug boss 11 on poly (methyl methacrylate) plate 6, and poly (methyl methacrylate) plate 6 passes through Its lug boss 11 is embedded into the window in the middle of front apron 4, four sides and the company of being bolted of front apron 4 of poly (methyl methacrylate) plate 6 Connect, wherein, the upper and lower both sides of poly (methyl methacrylate) plate 6 also pass through bolt together with the top and the preceding reinforcement 10 of bottom 2 respectively It is fixedly connected, excavation hole 7 is provided with poly (methyl methacrylate) plate 6, corresponds on rear baffle 5 at excavation hole 7 and be provided with multiple send String holes 8, back timber 15 is bolted the top in left side beam 2 and right side beam 3, bottom girder 1, left side beam 2, right side beam 3, front apron 4 Composition testing stand main frame inner chamber, the two of testing stand main frame inner chamber are surrounded with poly (methyl methacrylate) plate 6, rear baffle 5 and back timber 15 Side and top position are provided with 3 air bags 14, and similar material model is loaded in testing stand main frame inner chamber, and positioned at 3 air bags In space between 14 and bottom girder 1, pressure cell is embedded in inside similar material model, and the electrical connection of pressure cell is by multiple wire feeding holes 8 Draw, a breather adapter mounting hole 12 is equipped with left side beam 2, right side beam 3 and back timber 15, in testing stand main frame The air bag 14 of chamber both sides connects the gas outlet of wherein a set of gas pressurization system by breather adapter, in testing stand main frame Air bag 14 above chamber connects the gas outlet of another set of gas pressurization system by breather adapter.
As shown in Figure 1, 2, the testing stand main frame also includes two fixed blocks 13, right baffle-plate 18 and right shell body 17, Two fixed blocks 13 are correspondingly arranged at the inner top side position of left side beam 2 and right side beam 3, respectively positioned at testing stand main frame inner chamber The top of 2 air bags 14 of two side positions, and it is located at the air bag 14 left and right two of testing stand main frame inner chamber top position respectively Be equipped with slot I in the outer part on side, the lower surface of two fixed blocks 13, on bottom girder 1 be provided with the lower surface of two fixed block 13 The corresponding left and right two slot II of slot I, when constructing similar material model, right baffle-plate 18 is inserted into the inner side of left side beam 2 The lower surface slot I of fixed block 13 and the upper left side of bottom girder 1 slot II in, right shell body 17 is inserted into the fixation of the inner side of right side beam 3 On the lower surface slot I of block 13 and bottom girder 1 in the slot II on right side.
As shown in figure 4, the center of circle of multiple wire feeding holes 8 is distributed on the circumference of same imaginary circles 9, the center of circle of imaginary circles 9 with The center of circle that hole 7 is excavated on rear baffle 5 is corresponding.The wire feeding hole 8 has 20.A diameter of 220mm of the imaginary circles 9, often A diameter of 10mm of individual wire feeding hole 8.In other embodiments, according to specific boundary condition, imaginary circles 9 and wire feeding hole 8 diameter is alternatively other values, to reach essentially identical technique effect;Wire feeding hole 8 can also be designed as different positions as needed Put and quantity, such as quantity is designed as 10,16,24 or 30.
As shown in figure 1, often set gas pressurization system is by nitrogen supercharging automatic control system 21, transfer tube 22 and oil-free air Compressor 23 is constituted, and the air inlet of nitrogen supercharging automatic control system 21 connects the gas outlet of transfer tube 22 by breather adapter, The air inlet of transfer tube 22 connects the gas outlet of oil-free air compressor 23 by breather adapter;Positioned at testing stand main frame inner chamber The air bag 14 of both sides connects the outlet of wherein a set of gas pressurization system nitrogen supercharging automatic control system 21 by breather adapter Mouthful, the air bag 14 above testing stand main frame inner chamber connects another set of gas pressurization system nitrogen supercharging by breather adapter The gas outlet of automatic control system 21.Wherein, nitrogen supercharging automatic control system 21 can be using the limited public affairs of Jinan Si Mingte science and technology Take charge of the nitrogen supercharging automatic control system of production, its model SUP-XT-B100;Oil-free air compressor 23 can use Taizhou plain The oil-free air compressor of prominent this Trade Co., Ltd. production of Austria, its model OTS-550X3.
As shown in Figure 1,2,3, 4, preceding reinforcement 10 has 4;Reinforcement 19 has 4 afterwards.In other specific embodiment parties In formula, also can according to the dimensional constraints and the size of the middle window of front apron 4 of testing stand main frame, reasonably increase or The quantity of reinforcement 10 is reduced, can be according to multiple wire feeding holes 8 on the dimensional constraints and rear baffle 5 of testing stand main frame Sized boundary situation, reasonably increases or decreases the quantity of rear reinforcement 19.
As Figure 1-5, left side beam 2 and right side beam 3 are channel-section steel structure, and the notch of left side beam 2 and right side beam 3 deviates from Testing stand main frame inner chamber;Bottom girder 1 is by notch is towards the channel-section steel 24 of testing stand main frame inner chamber and is cast in the groove of channel-section steel 24 Cement entity 25 is constituted.
As shown in fig. 6, each air bag 14 is flat rectangular shape air bag, its surrounding side is folding face, and its is upper and lower Face is plane, and it is provided with breather adapter interface 20 above.Each its above and below of air bag 14 is by pressure-resistant soft rubber material system Into, its surrounding side folding face by thickness is small thereon, material thickness used below pressure-resistant soft rubber material is made.
This tunnel analog simulation Plane Strain Test platform is filled when constructing similar material model to testing stand main frame inner chamber When filling out analog material, as the case may be, the air bag above testing stand main frame inner chamber can be removed in not rigid bar 15 When 14, feeding, analog material of mating formation directly at testing stand main frame upper port;Or front apron 4 can also be disassembled, will Analog material, which is placed on rear baffle 5, mats formation, and then again assembles front apron 4.While above-mentioned filling analog material, note burying If good pressure cell, the electrical connection of pressure cell is drawn by multiple wire feeding holes 8;After analog material is filled, 1 week or so, i.e. structure are air-dried Having built similar material model can be tested.
In addition, before analog material is loaded to testing stand main frame inner chamber, first front apron 4 can be disassembled, by a left side Baffle plate 18 is inserted into the slot II of the lower surface slot I of fixed block 13 of the inner side of left side beam 2 and the upper left side of bottom girder 1, by right shell body 17 are inserted on the lower surface slot I of fixed block 13 of the inner side of right side beam 3 and bottom girder 1 in the slot II on right side;Then bottom girder 1, In space between right baffle-plate 18, right shell body 17 and air bag 14 above testing stand main frame inner chamber, analog material is loaded; When filling analog material, construct after similar material model, it is necessary to when testing loading by air bag, by right baffle-plate 18 and right shell body 17 Extraction is removed.
This tunnel analog simulation Plane Strain Test platform, after the completion of similar material model is constructed, puts testing stand during experiment Stabilization is put, and testing stand is connected with 2 sets of gas pressurization systems, then starts gas boosting, 3 air bags 14 are given full play to Gradient loading, voltage regulation performance, pressure performance carry out load test.In loading procedure, 2 sets of gas pressurization systems work always, Positioned at testing stand main frame inner chamber both sides air bag 14 by wherein a set of gas pressurization system simultaneously, synchronization and be equal to voltage supply, position Air bag 14 above testing stand main frame inner chamber is by another set of gas pressurization system voltage supply.
In this tunnel analog simulation Plane Strain Test platform, above-mentioned experimentation, it can pass through poly (methyl methacrylate) plate 6 and observe similar Material model, that is, simulate the destructive process in tunnel, and pressure cell measures loading data etc. simultaneously.If desired simulation tunnel is made Release is tested, and similar material model can be punched at wire feeding hole 8, then at the excavation hole 7 on poly (methyl methacrylate) plate 6, dug out The model entity departed from after punching with similar material model, to simulate subordinate cundy pressure relief support.
This tunnel analog simulation Plane Strain Test platform, in inflation, each its above and below of air bag 14 can uniformly open Expansion, admirably reaches the requirement for pressing loading, overcomes because existing loading air bag is cylinder or Flat belt arc knot Structure, can be first from intermediate expansion during inflation, the problem of simulated test requirement for being not suitable with this experimental bench presses loading.

Claims (10)

1. a kind of tunnel analog simulation Plane Strain Test platform, including testing stand main frame and pressure cell, it is characterized in that:Also include 2 sets of gas pressurization systems, the testing stand main frame includes base (16), bottom girder (1), left side beam (2), right side beam (3), preceding Baffle plate (4), rear baffle (5), back timber (15), a plurality of preceding reinforcement (10), a plurality of rear reinforcement (19), poly (methyl methacrylate) plate (6) and 3 Individual air bag (14), base (16) is fixed on the bottom of bottom girder (1), and the arranged on left and right sides position on bottom girder (1) is respectively fixed with Leading flank, the trailing flank of left side beam (2) and right side beam (3), left side beam (2) and right side beam (3) are connected with front apron respectively (4) and rear baffle (5), the lower end of front apron (4) and rear baffle (5) is in contact with bottom girder (1) respectively, the centre of front apron (4) Window is provided with, a plurality of preceding reinforcement (10) is horizontally arranged at interval on front apron (4), and strengthened before the top and bottom 2 Muscle (10) corresponds respectively to the upper edge and lower edge of front apron (4) middle window, and a plurality of rear reinforcement (19) is horizontally arranged at interval On rear baffle (5), have on poly (methyl methacrylate) plate (6) before lug boss (11), poly (methyl methacrylate) plate (6) be embedded into by its lug boss (11) In window in the middle of baffle plate (4), four sides and the front apron (4) of poly (methyl methacrylate) plate (6) are bolted to connection, wherein, it is organic The upper and lower both sides of glass plate (6) the also company of being bolted together with the top and the preceding reinforcement (10) of bottom 2 respectively Connect, be provided with poly (methyl methacrylate) plate (6) excavation hole (7), on rear baffle (5) correspond to excavate hole (7) place be provided with it is multiple Wire feeding hole (8), back timber (15) is bolted the top in left side beam (2) and right side beam (3), bottom girder (1), left side beam (2), the right side Curb girder (3), front apron (4) and poly (methyl methacrylate) plate (6), rear baffle (5) and back timber (15) are surrounded in composition testing stand main frame Chamber, the both sides and top position of testing stand main frame inner chamber are provided with 3 air bags (14), and similar material model is loaded on testing stand master In body frame inner chamber, and in the space between 3 air bags (14) and bottom girder (1), pressure cell is embedded in inside similar material model, The electrical connection of pressure cell is drawn by multiple wire feeding holes (8), and one is equipped with left side beam (2), right side beam (3) and back timber (15) Breather adapter mounting hole (12), the air bag (14) positioned at testing stand main frame inner chamber both sides is wherein a set of by breather adapter connection The gas outlet of gas pressurization system, the air bag (14) above testing stand main frame inner chamber connects another set of by breather adapter The gas outlet of gas pressurization system.
2. analog simulation Plane Strain Test platform in tunnel according to claim 1, it is characterized in that:The testing stand main frame Also include two fixed blocks (13), right baffle-plate (18) and right shell body (17), two fixed blocks (13) are correspondingly arranged at left side beam (2) and right side beam (3) inner top side position, respectively on 2 air bags (14) of the side position of testing stand main frame inner chamber two Side, and be located at respectively under air bag (14) arranged on left and right sides of testing stand main frame inner chamber top position, two fixed blocks (13) Slot I is equipped with end face in the outer part, provided with corresponding with the slot I on two fixed blocks (13) lower surface on bottom girder (1) Left and right two slot II, when constructing similar material model, right baffle-plate (18) is inserted into the fixed block on the inside of left side beam (2) (13) in the slot II of lower surface slot I and bottom girder (1) upper left side, right shell body (17) is inserted into the fixation on the inside of right side beam (3) On block (13) lower surface slot I and bottom girder (1) in the slot II on right side.
3. analog simulation Plane Strain Test platform in tunnel according to claim 1 or 2, it is characterized in that:Multiple wire feeding holes (8) The center of circle be distributed on the circumference of same imaginary circles (9), the centers of circle of imaginary circles (9) and the center of circle that hole (7) are excavated on rear baffle (5) It is corresponding.
4. analog simulation Plane Strain Test platform in tunnel according to claim 3, it is characterized in that:The wire feeding hole (8) is altogether There are 20.
5. analog simulation Plane Strain Test platform in tunnel according to claim 3, it is characterized in that:The imaginary circles (9) A diameter of 220mm, a diameter of 10mm of each wire feeding hole (8).
6. analog simulation Plane Strain Test platform in tunnel according to claim 1 or 2, it is characterized in that:Often cover gas boosting System is made up of nitrogen supercharging automatic control system (21), transfer tube (22) and oil-free air compressor (23), and nitrogen supercharging is certainly The air inlet of autocontrol system (21) connects the gas outlet of transfer tube (22) by breather adapter, and the air inlet of transfer tube (22) leads to Cross the gas outlet of breather adapter connection oil-free air compressor (23);Air bag (14) positioned at testing stand main frame inner chamber both sides leads to The gas outlet that breather adapter connects wherein a set of gas pressurization system nitrogen supercharging automatic control system (21) is crossed, positioned at testing stand Air bag (14) above main frame inner chamber is connected another set of gas pressurization system nitrogen supercharging and automatically controlled by breather adapter is The gas outlet of system (21).
7. analog simulation Plane Strain Test platform in tunnel according to claim 1 or 2, it is characterized in that:Preceding reinforcement (10) Have 4;Reinforcement (19) has 4 afterwards.
8. analog simulation Plane Strain Test platform in tunnel according to claim 1 or 2, it is characterized in that:Left side beam (2) and the right side Curb girder (3) is channel-section steel structure, and the notch of left side beam (2) and right side beam (3) deviates from testing stand main frame inner chamber;Bottom girder (1) It is made up of notch towards the channel-section steel (24) of testing stand main frame inner chamber and the cement entity (25) being cast in channel-section steel (24) groove.
9. analog simulation Plane Strain Test platform in tunnel according to claim 1 or 2, it is characterized in that:Each air bag (14) For flat rectangular shape air bag, its surrounding side is folding face, and its above and below is plane, and it connects provided with ventilation above Interface tube (20).
10. analog simulation Plane Strain Test platform in tunnel according to claim 9, it is characterized in that:Each air bag (14) its Above and below is made by pressure-resistant soft rubber material, and its surrounding side folding face is by thickness is small thereon, material used below The pressure-resistant soft rubber material of thickness is made.
CN201621496779.1U 2016-12-31 2016-12-31 Tunnel analog simulation Plane Strain Test platform Expired - Fee Related CN206504955U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110082227A (en) * 2019-04-22 2019-08-02 太原理工大学 Simulate the residual exploiting field coal column group of dynamic loading tool post formula stable tester and its method
CN110702062A (en) * 2019-09-06 2020-01-17 山东科技大学 Plane movement deformation measurement system and application thereof in two-dimensional analog simulation experiment
CN113295539A (en) * 2021-06-01 2021-08-24 中国长江三峡集团有限公司 Plane strain test device and method for reinforced soil unit body
CN114636807A (en) * 2022-05-20 2022-06-17 太原理工大学 Physical simulation experiment system for gas migration of coal rock system in mining process

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110082227A (en) * 2019-04-22 2019-08-02 太原理工大学 Simulate the residual exploiting field coal column group of dynamic loading tool post formula stable tester and its method
CN110702062A (en) * 2019-09-06 2020-01-17 山东科技大学 Plane movement deformation measurement system and application thereof in two-dimensional analog simulation experiment
CN110702062B (en) * 2019-09-06 2020-11-17 山东科技大学 Plane movement deformation measurement system and application thereof in two-dimensional analog simulation experiment
CN113295539A (en) * 2021-06-01 2021-08-24 中国长江三峡集团有限公司 Plane strain test device and method for reinforced soil unit body
CN114636807A (en) * 2022-05-20 2022-06-17 太原理工大学 Physical simulation experiment system for gas migration of coal rock system in mining process
CN114636807B (en) * 2022-05-20 2022-08-02 太原理工大学 Physical simulation experiment system for gas migration of coal rock system in mining process

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