CN107621415A - A kind of true triaxial multifunctional large-scale Deep Mine Roadway model testing machine - Google Patents
A kind of true triaxial multifunctional large-scale Deep Mine Roadway model testing machine Download PDFInfo
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- CN107621415A CN107621415A CN201710280075.3A CN201710280075A CN107621415A CN 107621415 A CN107621415 A CN 107621415A CN 201710280075 A CN201710280075 A CN 201710280075A CN 107621415 A CN107621415 A CN 107621415A
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- 238000012360 testing method Methods 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 238000002474 experimental method Methods 0.000 claims abstract description 11
- 238000009412 basement excavation Methods 0.000 claims abstract description 4
- 235000012773 waffles Nutrition 0.000 claims description 46
- 239000002828 fuel tank Substances 0.000 claims description 12
- 244000144985 peep Species 0.000 claims description 9
- 239000011435 rock Substances 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 claims description 2
- 238000001556 precipitation Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 108700028490 CAP protocol 2 Proteins 0.000 claims 1
- 238000004134 energy conservation Methods 0.000 claims 1
- 238000005086 pumping Methods 0.000 claims 1
- 238000011160 research Methods 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000005065 mining Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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Abstract
The present invention relates to a kind of true triaxial multifunctional large-scale Deep Mine Roadway model testing machine, including back-shaped frame system, hydraulic loaded and pressure-retaining system, control system, pressure water system, Equipment Foundations system and model disassembly system, its feature to be：Back-shaped frame system is all-sealed structure, can carry out the face three-dimensional loading of true triaxial five, it is possible to provide be higher thanModel surface stress, the pressurize of long-time high pressure can be achieved and can carry out rich water pressurize experiment.The present invention is applied to the multinomial scientific research in mine deep part tunnel, and the interactional simulated tests such as underground passage engineering excavation, supporting, driving, gushing water and highland pressure can be achieved, have it is compact-sized, simple, it is easy to operate, the advantages of environmental protection and energy saving.
Description
Technical field
Patent of the present invention be applied to mine deep tunnel multinomial scientific research, realize underground passage engineering excavation, supporting,
The interactional model tests such as driving, gushing water and highland pressure.
Background technology
Underground mining is the main path in mineral resources source, in the exploitation of long-term big intensity, the storage of superficial part mineral resources
Amount gradually decreases, and the well depth of exploitation is increasing.With the increase of mining mining depth, highland pressure and high hydraulic pressure mine kata-rocks
It is more and more that disaster occurs for body tunnel.Under large ground pressure, structure, mechanical characteristic and the engineering response of deep surrounding rock of chamber
There are a series of new features and phenomenon, it has also become rock-soil mechanics and the hot issue of engineering field research.Model test has
There is its unique superiority, at home and abroad ground is used widely with mining engineering circle, is turned into and is carried out underground engineering research
Necessary means.
Existing relevant device and system have the following disadvantages：There is no hermetically sealed true triaxial loading system, without can
The pressure water system of the high hydraulic pressure in deep is simulated, without enough on-load pressures, and without prolonged pressure holding effect so that simulation
In the case of force-bearing of surrounding rock mass situation and truth it is widely different, infiltration, gushing water and water burst under reality etc. can not be simulated
Rich water is tested.
The content of the invention
Patent of the present invention aims to overcome that insufficient existing for existing geomechanical model test machine, there is provided a kind of true triaxial
Multifunctional large-scale Deep Mine Roadway model testing machine；Using all-sealed back-shaped frame system, the face three of true triaxial five can be carried out
To loading, it is possible to provide be higher thanModel surface stress, long-time high pressure pressurize can be achieved, rich water experiment can be carried out.
The technical scheme that patent of the present invention uses is：This model test machine includes back-shaped frame system, hydraulic loaded and guarantor
Pressure system, pressure water system, Equipment Foundations system, model disassembly system and control system.It is characterized in that：（1）It is described back-shaped
Frame system includes three-back-shaped main frame, preceding waffle slab, rear waffle slab and anti-interference frame；The anti-interference frame is welded by 8 square columns
Composition is connect, including 4 circumferential 4 square columns, longitudinal direction square columns, for preventing adjacent load plate while interfering when loading；Institute
4 square columns in longitudinal direction are stated, middle part passes through the three-back-shaped main frame, and front end is screw rod, for connecting the forward and backward waffle slab, is held
By fore-and-aft direction model counter-force；Waffle slab is provided with the gusset being distributed along surrounding, and the rib and the three-back-shaped master after described
Framework and 4 square column welding of the circumference are integral；The three-back-shaped main frame, the preceding waffle slab and the rear waffle slab
Form model test cavity；The preceding waffle slab centre is reserved with basic peep hole, with three-level flange end of different sizes
Lid combination, which is assembled on the basic peep hole, obtains the various sizes of peep hole of three-level, realizes under three kinds of sizes to experiment
Excavation, monitoring and the observation of model；The installation screw interlaced arrangement of three-level flange end cap of different sizes, realizes described group
Attach together and match somebody with somebody；（2）The hydraulic loaded includes load plate, hydraulic actuator, fluid pressure line, hydraulic valve, hydraulic pressure with pressure-retaining system
Pump, accumulator and fuel tank；Upper and lower, left and right grid beam column of the hydraulic actuator mosaic arrangements in the three-back-shaped main frame
After interior and described in waffle slab grid, the true triaxial loading of five face three-dimensionals is realized；The hydraulic actuator oil inlet and outlet is unified
The hydraulic actuator afterbody is arranged in, fluid pressure line is connected outside equipment so that dismounting is simple, and maintenance is convenient；The liquid
Pressure loading can realize the Arbitrary Gradient surface pressing simultaneously or independently loaded under deep rock thrust stress with pressure-retaining system；It is described any
Gradient surface pressure and dwell time are controlled by the control system；The hydraulic pump is divided into high-power main pump and small-power repairing
Pump, the high-power main pump and the small-power slippage pump coordinate the accumulator effect, realize long-time, high accuracy, pressure
Self compensation pressurize, and pressure maintaining period energy consumption is low；（3）The pressure water system（Utility model is separately applied for）Including water under high pressure
Pump, water valve, water pipe, water tank and seal；The seal is arranged on the peace for connecting the model cavity and extraneous each part
Dress face, hermetically sealed cavity is formed, the press water for providing the high-pressure hydraulic pump carries out pressurize；The high-pressure hydraulic pump is multistage
Centrifugal high pressure water pump, it is possible to provide the water under high pressure under deep rock thrust stress, for the hermetically sealed cavity water filling, being seeped water,
The rich water such as gushing water and water burst is tested；The water valve is electric proportional valve, can be precisely controlled hydraulic pressure；（4）The Equipment Foundations system is set
Set sink, the Equipment Foundations system are provided with tank, and the tank makes water flow back, and recirculation water reuses after precipitation, enters
And realize energy-saving；（5）The model disassembly system includes flat car, track, running gear, a lid oil cylinder and discharging oil
Cylinder；Described lid oil cylinder, it is divided into left and right two, mosaic arrangements are in the preceding waffle slab both sides, when experiment finishes, grid before release
After connection between plate and back-shaped framework, play lid cylinder piston rod and stretch out, waffle slab and back-shaped framework apart, are realized certainly before promotion
Lid is moved.The unloading fuel tank is upper and lower two big stroke oil cylinders, and mosaic arrangements are in the rear on waffle slab, after experiment,
Model sample is pushed out on the flat car by the unloading fuel tank from the hermetically sealed cavity, realizes automatic discharging；The rail
Road includes cross track and long rails；The running gear includes preceding waffle slab running gear and flat car running gear, by
Electrical motor driven, the preceding waffle slab is walked on the long rails, make the flat car in the long rails and
Walked on the cross track, realize automatic transport；（6）The control system is applied to the excitation of subjects when can be experiment
The real-time formation curve of the response signal of signal and subjects.
Brief description of the drawings
Patent of the present invention is further illustrated below in conjunction with the accompanying drawings.
Accompanying drawing 1 is patent main part structural representation of the present invention.
Accompanying drawing 2 is patent hydraulic actuator and push pedal scheme of installation of the present invention（Left view, axis are half-sectional）.
Accompanying drawing 3 is patent anti-interference mount structure schematic diagram of the present invention.
Accompanying drawing 4 is patent three-level peep hole schematic diagram of the present invention.
In figure：Waffle slab after 1., 2. three-back-shaped main frames, waffle slab before 3., 4. hydraulic actuators, 5. circumferential push pedals, 6.
Anti-interference frame, circumferential four square columns of 6-1,6-2,6-3,6-4. longitudinal direction four square column 6-5,6-6,6-7,6-8., 7. flat cars, 8.
Flat car running gear, 9. long rails, 10. cross tracks, waffle slab mounting hole before 11., 12. lid oil cylinders, 13. bases are seen
Examine hole, 13-1. one-levels observation flange, 13-2. two levels observation flange, 13-3. three-levels observation flange, waffle slab walking dress before 14.
Put, 15. unloading fuel tanks, 16. deep floors, 17. discharging push pedals.
Embodiment
Referring to the drawings 1-3：（1）Afterwards hydraulic actuation is inlaid with waffle slab 1 and on four faces of three-back-shaped main frame 2
Device 4, and there is mouth to be uniformly arranged in outside, wherein the movable end of the hydraulic actuator 4 on three-back-shaped main frame 2 and circumferential push pedal 5
It is connected；（2）Two unloading fuel tanks 15 up and down are inlaid with waffle slab 1 afterwards, the movable end of unloading fuel tank 15 is connected with discharging push pedal 17；
（3）Longitudinal direction four square columns 6-1,6-2,6-3,6-4 of anti-interference frame 6 pass through three-back-shaped main frame 2, and its contact surface is welded and fixed,
Circumferential four square columns 6-5,6-6,6-7,6-8 of anti-interference frame 6 are welded and fixed with rear waffle slab 1；（4）Deep floor 16 and rear net
Panel 1, three-back-shaped main frame 2 are welded and fixed；（5）Circumferential push pedal 5, can be along anti-interference frame 6 in the presence of hydraulic actuator 4
Guide direction motion；（6）Waffle slab running gear 14, can be moved along long rails 9 before the lower end of preceding waffle slab 3 is provided with；
（7）The lower end of flat car 7 is provided with flat car running gear 8, can be moved along long rails 9 and cross track 10；（8）Preceding net
4 preceding waffle slab mounting holes 11 and basic peep hole 13 are provided with panel 3；（9）Left and right two is disposed with preceding waffle slab
Play lid oil cylinder 12；Referring to the drawings 4：（10）One-level observation flange 13-1, two level observation flange 13-2, three-level observe flange 13-3's
Installation screw interlaced arrangement, one-level are installed based on observing basic peep holes 13 of the flange 13-1 in the past on waffle slab 3, and two level is seen
Examine flange 13-2 to install based on one-level observation flange 13-1, three-level observes flange 13-3 and observes flange 13-2 as base using two level
Plinth is installed.
Its work process is as follows
Step 1：Make device in running order, reset all hydraulic actuator, grid board mounting assembly before unloading, play lid oil
Cylinder piston rod stretches out, waffle slab and back-shaped framework apart, waffle slab running gear before driving before promotion, and waffle slab is remote before making returns
Font main frame；
Step 2：Test material and related sensor are placed in simulation test machine and be compacted；
Step 3：Waffle slab running gear before driving, preceding waffle slab is moved to working face and press close to three-back-shaped main frame, make anti-dry
The front end screw rod for relating to four square columns in longitudinal direction of frame passes through preceding waffle slab mounting hole, waffle slab before installation；
Step 4：Model is loaded, monitored, gathers test data；
Step 5：Repeat step 1, flat car running gear is driven, before causing it to move to three-back-shaped main frame, enables unloading fuel tank,
Unloading fuel tank piston rod is stretched out, and model is pushed out on flat car out of die cavity；
Step 6：Flat car running gear is driven, flat car is moved to cross track；
Step 7：Repeat step 3.
Claims (8)
1. a kind of true triaxial multifunctional large-scale Deep Mine Roadway model testing machine, including back-shaped frame system, hydraulic loaded with
Pressure-retaining system, pressure water system, Equipment Foundations system, model disassembly system and control system.
2. true triaxial multifunctional large-scale Deep Mine Roadway model testing machine according to claim 1, it is characterised in that described
Back-shaped frame system includes three-back-shaped main frame, preceding waffle slab, rear waffle slab and anti-interference frame；The anti-interference frame is by 8 sides
Post is welded to form, including 4 circumferential 4 square columns, longitudinal direction square columns, for preventing adjacent load plate while mutually doing when loading
Relate to；Described 4 square columns in longitudinal direction, middle part pass through the three-back-shaped main frame, and front end is screw rod, for connecting the forward and backward grid
Plate, bear fore-and-aft direction model counter-force；Waffle slab surrounding gusset and the three-back-shaped main frame and the circumference 4 after described
Square column welding is integral；The three-back-shaped main frame, the preceding waffle slab and the rear waffle slab form the experiment of the model
Cavity；The preceding waffle slab centre is reserved with basic peep hole, is assembled to three-level flange end cap combination of different sizes
The various sizes of peep hole of three-level is obtained on the basic peep hole, realize excavation under three kinds of sizes to test model,
Monitoring and observation；The installation screw interlaced arrangement of three-level flange end cap of different sizes, realize the combination assembling.
3. true triaxial multifunctional large-scale Deep Mine Roadway model testing machine according to claim 1, it is characterised in that described
Hydraulic loaded includes load plate, hydraulic actuator, fluid pressure line, hydraulic valve, hydraulic pump, accumulator and oil with pressure-retaining system
Case；The hydraulic actuator mosaic arrangements in the upper and lower, left and right grid beam column of the three-back-shaped main frame and it is described after
In waffle slab grid, the true triaxial loading of five face three-dimensionals is realized；The hydraulic actuator oil inlet and outlet is uniformly arranged in the liquid
Actuator afterbody is pressed, fluid pressure line is connected outside equipment so that dismounting is simple, and maintenance is convenient；The hydraulic loaded and pressurize
System can realize the Arbitrary Gradient surface pressing simultaneously or independently loaded under deep rock thrust stress；The Arbitrary Gradient surface pressing
Controlled with the dwell time by the control system；The hydraulic pump is divided into high-power main pump and small-power slippage pump, the big work(
Rate main pump and the small-power slippage pump coordinate the accumulator effect, realize long-time, high accuracy, pressure autocompensation pressurize,
And pressure maintaining period energy consumption is low.
4. true triaxial multifunctional large-scale Deep Mine Roadway model testing machine according to claim 1, it is characterised in that described
Pressure water system includes high-pressure hydraulic pump, water valve, water pipe, water tank and seal；The seal is arranged on the connection Model Space
The mounting surface of chamber and extraneous each part, forms hermetically sealed cavity, the press water for providing the high-pressure hydraulic pump is protected
Pressure；The high-pressure hydraulic pump is multistage pressure centrifugal water pump, it is possible to provide the water under high pressure under deep rock thrust stress, for described complete close
Cavity water filling is sealed, is seeped water, the experiment of the rich water such as gushing water, water burst；The water valve is electric proportional valve, can be precisely controlled hydraulic pressure.
5. true triaxial multifunctional large-scale Deep Mine Roadway model testing machine according to claim 1, it is characterised in that described
Equipment Foundations system is provided with tank, and the tank makes water flow back, and recirculation water reuses after precipitation, and then realizes energy-conservation drop
Consumption.
6. true triaxial multifunctional large-scale Deep Mine Roadway model testing machine according to claim 1, it is characterised in that described
Model disassembly system includes flat car, track, running gear, lid oil cylinder and unloading fuel tank；Described lid oil cylinder, it is divided into left and right
Two, mosaic arrangements are in the preceding waffle slab both sides, when experiment finishes, the connection before release between waffle slab and back-shaped framework
Afterwards, the stretching of lid cylinder piston rod is played, waffle slab and back-shaped framework apart before promotion, realizes automatic lid.
7. the unloading fuel tank is upper and lower two big stroke oil cylinders, mosaic arrangements are in the rear on waffle slab, the unloading fuel tank
For upper and lower two big stroke oil cylinders, mosaic arrangements are in the rear on waffle slab, and after experiment, the unloading fuel tank tries model
Sample is pushed out on the flat car from the hermetically sealed cavity, realizes automatic discharging；The track includes cross track and longitudinal direction
Track；The running gear includes preceding waffle slab running gear and flat car running gear, by electrical motor driven, make it is described before
Waffle slab is walked on the long rails, the flat car is walked on the long rails and the cross track, real
Existing automatic transport.
8. true triaxial multifunctional large-scale Deep Mine Roadway model testing machine according to claim 1, it is characterised in that described
Control system is applied to the response signal real-time formation curve of the pumping signal and subjects of subjects when can be experiment.
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Cited By (4)
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| CN110132733A (en) * | 2019-06-10 | 2019-08-16 | 中国科学院武汉岩土力学研究所 | A kind of three-dimensional high stress hydraulic fracturing physical simulation experiment system of real time imagery |
| CN110346216A (en) * | 2019-06-20 | 2019-10-18 | 太原理工大学 | Three axis load testing machine of coal and rock and method in the case of a kind of simulation driving disturbance |
| CN112595480A (en) * | 2020-12-07 | 2021-04-02 | 中国矿业大学 | Roadway hydraulic energy-absorbing support analog simulation experiment device |
| CN114992187A (en) * | 2022-08-03 | 2022-09-02 | 中国矿业大学(北京) | Multifunctional balanced loading device and method for model test |
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