CN205665117U - Experimental device for it is rock mass developments mechanics characteristic to be used for simulation piece - Google Patents
Experimental device for it is rock mass developments mechanics characteristic to be used for simulation piece Download PDFInfo
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- CN205665117U CN205665117U CN201620266685.9U CN201620266685U CN205665117U CN 205665117 U CN205665117 U CN 205665117U CN 201620266685 U CN201620266685 U CN 201620266685U CN 205665117 U CN205665117 U CN 205665117U
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- 238000004088 simulation Methods 0.000 title abstract description 7
- 238000011161 development Methods 0.000 title abstract 2
- 230000018109 developmental process Effects 0.000 title abstract 2
- 238000012360 testing method Methods 0.000 claims abstract description 40
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 15
- 239000010959 steel Substances 0.000 claims abstract description 15
- 230000003068 static effect Effects 0.000 claims abstract description 11
- 230000035939 shock Effects 0.000 claims description 9
- 230000009467 reduction Effects 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000003111 delayed effect Effects 0.000 claims description 3
- 230000001550 time effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 238000004080 punching Methods 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000013461 design Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
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Abstract
The utility model relates to an experimental device for it is rock mass developments mechanics characteristic to be used for simulation piece, including the base that is used for bearing the model test piece, be equipped with the vertical force frame and the horizontal loading frame of lead screw respectively, two impact loading unit and horizontal static loading units that are equipped with the vibration exciter, the vertical force frame is fixed on the base vertically, horizontal loading frame sets up respectively on the base of vertical force frame both sides with horizontal static loading unit, strikeing the loading unit can connect from top to bottom in horizontal loading frame and vertical force frame through screw actuation respectively with sliding, make the vibration exciter follow to strike and produce the disturbance that acts on the model test piece through the vibration exciter when loading unit slides to the assigned position corresponding with the model test piece, horizontal static loading unit includes an adjustable steel wire of pulling force, the one end detachably of steel wire connects on the model test piece. Beneficial effect does: adopt the vibration exciter to simulate the impact disturbance, can realize multiple wave form, compare the more condition of corresponding to reality of hammer impact, guaranteed experimental science.
Description
Technical field
The present invention relates to deep rock mass mechanical state simulation study field, particularly for simulation block rock mass dynamic force
Learn the experimental provision of characteristic.
Background technology
It is known that rock mass is actual geologic body, it is split by tomography, joint and crack etc., these structural planes it
Between contacted by the obturator that intensity is relatively low, so rock mass is typical non-homogeneous Discontinuous transmission, can regard as by different scale
The aggregation that condenses mutually of sillar, its main characteristic is its block.
Under External Force Acting, the deformation of rock mass is mainly made up of the deformation of filler at sillar deformation and structural plane, and
The latter accounts for the major part of whole rock mass deformation.Field data shows, carries out underground engineering construction excavation or quick-fried in rock mass
Time fried, rock mass edge surface creates rotating and mutual sliding of significant sillar difference displacement, mainly sillar, this
Rotate and sliding have between the sillar of different brackets size transmit, therefore formed big amplitude, slow propagation wide spectrum non-linear
Elastoplasticity becomes " position " wave system or is referred to as pendulum shape ripple.Meanwhile, mutually rotation and the sliding between sillar makes charges between sillar be destroyed
Thus reducing or the disengaging of contact each other of frictional force occurs, thus produce the low friction phenomenon between sillar so that between sillar
Fracture sliding relatively more easy, store between sillar interface, the disappearance of " restraining forces (frictional force) " also can make original sillar
Energy is released, thus induced breakage slide type rock burst or engineering earthquake.
The research of above-mentioned rock mass deformation destructive characteristics and mechanism is clearly what traditional continuum Model cannot obtain,
The block series structure that must be based on rock mass is theoretical, uses the dynamic characteristics of block rock mass under scientific method research perturbation action.
The most many scholars have carried out related work, achieve certain in theoretical research and simulation test respectively
Progress.But the method for the commonly used drop impact of testing equipment at present, control accuracy is low, and operability is the strongest, it is impossible to open quantitatively
Exhibition simulation test.
Summary of the invention
It is an object of the invention to provide a kind of can realize high-ground stress, excavation disturbance and blast disturbance simulation based on phase
Like the theoretical method that deep rock mass stress state is simulated test.
The described experimental provision for simulating block rock mass dynamic characteristics, including the end for carrying model test piece
Seat, be respectively equipped with the Vertical loading frame of leading screw and horizontal addload frame, two Impulsive load unit being provided with vibrator and
Horizontal static loading unit, Vertical loading frame is fixed on base vertically, and described horizontal addload frame adds with horizontal static(al)
Carrier unit is respectively arranged on the base of Vertical loading frame both sides, and described Impulsive load unit is respectively correspondingly by an institute
State leading screw driving can slide up and down to be connected in horizontal addload frame and Vertical loading frame so that vibrator is with Impulsive load
Unit slides into the disturbance that when specifying position by vibrator produced act on model test piece corresponding with model test piece, described water
Tranquil power loading unit includes an adjustable steel wire of pulling force, and one end of described steel wire is removably attachable to model test piece
Side, acts on model test piece with making described tension level.
The design further of the described experimental provision for simulating block rock mass dynamic characteristics is, described steel wire
The other end includes scale pan and assembly pulley, steel by the size with pulling force regulation unit regulation pulling force, described pulling force regulation unit
The other end of silk is connected through described assembly pulley with described scale pan, by changing the counterweight weight of scale pan carrying, it is achieved water
The regulation of horizontal drawing power size.
The design further of the described experimental provision for simulating block rock mass dynamic characteristics is, Vertical loading machine
Being respectively equipped with fixation kit on frame and horizontal addload frame, described fixation kit includes support and regulation bolt, described erection
In one end of the both sides of upright slide rail and each support for setting female collar, described regulation bolt by with described collar
Rotation is transversely supported on support, for when slide block arrives and specifies position, locks regulation bolt fixing impact loading unit.
The design further of the described experimental provision for simulating block rock mass dynamic characteristics is, described impact adds
Carrier unit also includes that load transducer, impact head and slide block, load transducer and impact head are installed on vibrator relative to mould
Intending the side of test specimen, vibrator produces shock vibration, and described disturbance acts on model examination through load transducer, impact head successively
Part, vibrator is slidably connected to Vertical loading frame or the horizontal addload frame of correspondence by slide block.
The further design of the described experimental provision for simulating block rock mass dynamic characteristics is, described vertically adds
Carrier aircraft frame and horizontal addload frame are respectively equipped with guide rail, and described slide block is connected with described slide.
The design further of the described experimental provision for simulating block rock mass dynamic characteristics is, described leading screw leads to
Over-drive unit drives lifting, and described driver element includes that motor and reduction box, described motor are passed by reduction box
It is dynamically connected in leading screw.
The design further of the described experimental provision for simulating block rock mass dynamic characteristics is, described base
Horizontal direction is provided with gathering sill, is arranged in gathering sill, it is simple to adapt to various sizes of described horizontal addload housing slide
Model test piece.
The design further of the described experimental provision for simulating block rock mass dynamic characteristics is, by a control
The phase contrast of unit control signal source processed input, the vibrator that can regulate two Impulsive load unit acts on the time of test specimen
Point and effect duration, for simulating the phenomenon that under different operating mode, block rock mass is hit, it is achieved asynchronous working or synchronous working, i.e.
Realize individually applying shock vibration, or apply heavily to add disturbance simultaneously, or the double direction impulse disturbance of different delayed time effect.
Compared with prior art, its remarkable advantage is as follows for the present invention:
(1) present invention uses vibrator to be simulated shock vibration, it is possible to achieve multiple waveforms, such as triangular wave, sine
Ripple, cosine wave, compare drop impact and can only realize pulse signal, more tally with the actual situation, it is ensured that the science of test.
(2) it is accurately controlled mechanics parameter and the impact energy of the impact acting on model test piece, can launch quantitatively
Experimental study.
(3) stability in the large is good, easily operated, repeatable strong.
Accompanying drawing explanation
Fig. 1 is the structural representation of the experimental provision for simulating block rock mass dynamic characteristics of the present invention.
Detailed description of the invention
The present invention's is specific as follows for simulating the experimental provision of block rock mass dynamic characteristics:
The present embodiment for simulating the experimental provision of block rock mass dynamic characteristics, mainly carry model examination by being used for
The base 1 of part, the Vertical loading frame 3 being respectively equipped with leading screw and 4, two Impulsive load being provided with vibrator of horizontal addload frame
Unit and horizontal static loading unit composition.Vertical loading frame 3 is fixed on base vertically, horizontal addload frame 4 with
Horizontal static loading unit is respectively arranged on the base of Vertical loading frame both sides.Impulsive load unit respectively correspondingly passes through
Leading screw drives and can slide up and down to be connected in horizontal addload frame and Vertical loading frame so that Impulsive load unit slides into
Corresponding with model test piece produced the disturbance acting on model test piece when specifying position by vibrator.
Horizontal static loading unit is mainly made up of with pulling force regulation unit an adjustable steel wire of pulling force 17.Steel wire 17
One end be removably attachable in model test piece.The other end of steel wire is by the size of a pulling force regulation unit regulation pulling force.
Pulling force regulation unit is made up of with assembly pulley scale pan.Such as Fig. 1, assembly pulley is by movable pulley 18, pulley base 5 and 19 groups of fixed pulley
Become.Fixed pulley 19 is arranged on pulley base 5.Steel wire 17 one end is fixed with model test piece, through movable pulley 18 and fixed pulley 19, another
End connects scale pan 20, by changing counterweight weight, and the size of regulation horizontal pull.
It is respectively equipped with fixation kit in Vertical loading frame 3 and horizontal addload frame 4.Fixation kit is by support and regulation
Bolt forms.Prop up and be set up in the both sides of upright slide rail and one end of each support for setting female collar.Regulation bolt leads to
Crossing spins with collar is horizontally supported on support, and for when slide block arrives and specifies position, locking regulation bolt is with fixed punch
Hit loading unit.
So that disturbance is accurate, act on imitation specimen 2 to low-loss, in the Impulsive load unit of the present embodiment also
Including load transducer, impact head and slide block.Load transducer and impact head are installed on vibrator relative to imitation specimen
Side, vibrator produces shock vibration, and disturbance acts on model test piece through load transducer, impact head successively, and vibrator passes through
Slide block is slidably connected to Vertical loading frame or the horizontal addload frame of correspondence.
Further, Vertical loading frame and horizontal addload frame are respectively equipped with guide rail, and slide block 11 slides even with guide rail 7
Connect.
Leading screw is lifted by drive unit drives, and driver element includes motor and reduction box, and motor 8 is by subtracting
Speed case 9 is in transmission connection in leading screw.The leading screw 10 of the present embodiment is roller screw.
In order to make this experimental provision adapt to various sizes of model test piece, the horizontal direction of base offers guiding
Groove, is arranged in gathering sill so that horizontal addload frame can realize the displacement in horizontal direction horizontal addload housing slide.
The vibrator of two Impulsive load unit realizes asynchronous working or synchronous working by a control unit, it is achieved individually
Apply shock vibration, or apply heavily to add disturbance simultaneously, or the double direction impulse disturbance of different delayed time effect such that it is able to realize multiple
Waveform, such as triangular wave, sine wave, cosine wave, compare drop impact and more tally with the actual situation pulse, it is ensured that the science of test
Property.
The experimental provision of the present embodiment can be used for following two and tests:
Experiment one: first model test piece is positioned on base 1.For Vertical loading direction, by motor 8 even
Connecing reduction box 9, drive installation is moved along linear slide rail 7 by slide block 11 in the vibrator 14 of roller screw 10, vibrator 14, when
Impact head 16 arrives when subscribing position, screws regulation bolt 13 and fixes vibrator 14 position.For horizontal addload direction, by electricity
Machine 8 connects reduction box 9, and drive installation is transported along linear slide rail 7 by slide block 11 in the vibrator 14 of roller screw 10, vibrator 14
Dynamic, when impact head 16 arrives and subscribes position, screw regulation bolt 13 and fix vibrator position.It is then turned on vibrator 14 to produce
Corresponding shock vibration, is respectively acting on top and the side of model test piece through load transducer 15 and impact head 16.
Experiment two: first model test piece is positioned on base 1.For horizontal addload direction, with steel wire 17 one end with
Model test piece is fixed, and through movable pulley 18 and fixed pulley 19, the other end connects scale pan 20, by changing counterweight weight, regulates water
The size of horizontal drawing power.For Vertical loading direction, connect reduction box 9 by motor 8, drive installation swashing in roller screw 10
Shake device 14, and vibrator 14 is moved along linear slide rail 7 by slide block 11, when impact head 16 arrives and subscribes position, screws regulation spiral shell
Bolt 13 fixes vibrator 14 position.It is then turned on vibrator 14 and produces corresponding shock vibration, act on through load transducer 15
The top of model test piece.
The experimental provision of the present embodiment is accurately controlled mechanics parameter and the impact energy of the impact acting on model test piece,
Experimental study can be launched quantitatively.On the other hand, the stability in the large of this device is good, easily operated, repeatable strong.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For Yuan, can also make some improvement under the premise without departing from the principles of the invention, these improvement also should be regarded as the present invention's
Protection domain.
Claims (8)
1. the experimental provision being used for simulating block rock mass dynamic characteristics, it is characterised in that include for carrying model examination
The base of part, the Vertical loading frame being respectively equipped with leading screw and horizontal addload frame, two Impulsive load lists being provided with vibrator
First and horizontal static loading unit, Vertical loading frame is fixed on base vertically, described horizontal addload frame and level
Static loading unit is respectively arranged on the base of Vertical loading frame both sides, and described Impulsive load unit respectively correspondingly passes through
One described leading screw drives and can slide up and down to be connected in horizontal addload frame and Vertical loading frame so that vibrator is with punching
Hit loading unit and slide into the disturbance that when specifying position by vibrator produced act on model test piece corresponding with model test piece,
Described horizontal static loading unit includes an adjustable steel wire of pulling force, and one end of described steel wire is removably attachable to model
The side of test specimen, acts on model test piece with making described tension level.
Experimental provision for simulating block rock mass dynamic characteristics the most according to claim 1, it is characterised in that institute
Stating the other end size by pulling force regulation unit regulation pulling force of steel wire, described pulling force regulation unit includes scale pan and pulley
Group, the other end of steel wire is connected through described assembly pulley with described scale pan, by changing the counterweight weight of scale pan carrying, real
The regulation of existing horizontal pull size.
Experimental provision for simulating block rock mass dynamic characteristics the most according to claim 2, it is characterised in that hang down
Being respectively equipped with fixation kit on straight Load test framework and horizontal addload frame, described fixation kit includes support and regulation bolt, institute
State and be set up in the both sides of upright slide rail and one end of each support for setting female collar, described regulation bolt by with
The rotation of described collar is transversely supported on support, and for when slide block arrives and specifies position, locking regulation bolt is fixed impact and added
Carrier unit.
Experimental provision for simulating block rock mass dynamic characteristics the most according to claim 1, it is characterised in that institute
State Impulsive load unit and also include that load transducer, impact head and slide block, load transducer and impact head are installed on vibrator
Relative to the side of imitation specimen, vibrator produces shock vibration, and described disturbance acts on through load transducer, impact head successively
Model test piece, vibrator is slidably connected to Vertical loading frame or the horizontal addload frame of correspondence by slide block.
Experimental provision for simulating block rock mass dynamic characteristics the most according to claim 4, it is characterised in that institute
Stating Vertical loading frame and horizontal addload frame is respectively equipped with guide rail, described slide block is connected with described slide.
Experimental provision for simulating block rock mass dynamic characteristics the most according to claim 1, it is characterised in that institute
Stating leading screw to be lifted by drive unit drives, described driver element includes that motor and reduction box, described motor pass through
Reduction box is in transmission connection in leading screw.
Experimental provision for simulating block rock mass dynamic characteristics the most according to claim 1, it is characterised in that institute
The horizontal direction stating base is provided with gathering sill, is arranged in gathering sill described horizontal addload housing slide, it is simple to adapt to not
Model test piece with size.
Experimental provision for simulating block rock mass dynamic characteristics the most according to claim 1, it is characterised in that logical
Cross the phase contrast of a control unit control signal source input, and then the vibrator of two Impulsive load unit of regulation acts on test specimen
Time point and effect duration, for simulating the phenomenon that under different operating mode, block rock mass is hit, realize two Impulsive load lists
Unit individually applies shock vibration or applies heavily to add the double direction impulse disturbance of disturbance or different delayed time effect simultaneously.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620266685.9U CN205665117U (en) | 2016-03-31 | 2016-03-31 | Experimental device for it is rock mass developments mechanics characteristic to be used for simulation piece |
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| CN201620266685.9U CN205665117U (en) | 2016-03-31 | 2016-03-31 | Experimental device for it is rock mass developments mechanics characteristic to be used for simulation piece |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105716961A (en) * | 2016-03-31 | 2016-06-29 | 济南创探安防科技有限公司 | Experimental device for simulating dynamic mechanical properties of block rock mass |
| CN107965309A (en) * | 2017-11-21 | 2018-04-27 | 中国神华能源股份有限公司 | Shock simulation mechanism and shock simulation method for drillng operation |
| CN110455621A (en) * | 2019-08-06 | 2019-11-15 | 深圳市市政工程总公司 | The compressive strength test method of the building castoff mixture of stabilized with inorganic binder |
| CN110608957A (en) * | 2018-06-15 | 2019-12-24 | 长发达工业股份有限公司 | Falling weight type impact tester |
| EP3712589A4 (en) * | 2018-04-23 | 2021-01-27 | Northeastern University | APPARATUS AND METHOD FOR TESTING FOR KEY ROOF BLOCK SAGING IN BIDIRECTIONAL STATIC-DYNAMIC LOADING |
| CN114441285A (en) * | 2022-02-08 | 2022-05-06 | 西南交通大学 | Power test device and method for simulating train load |
-
2016
- 2016-03-31 CN CN201620266685.9U patent/CN205665117U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105716961A (en) * | 2016-03-31 | 2016-06-29 | 济南创探安防科技有限公司 | Experimental device for simulating dynamic mechanical properties of block rock mass |
| CN105716961B (en) * | 2016-03-31 | 2019-03-05 | 中国人民解放军陆军工程大学 | Experimental device for be used for simulating dynamic mechanical properties of block system rock mass |
| CN107965309A (en) * | 2017-11-21 | 2018-04-27 | 中国神华能源股份有限公司 | Shock simulation mechanism and shock simulation method for drillng operation |
| EP3712589A4 (en) * | 2018-04-23 | 2021-01-27 | Northeastern University | APPARATUS AND METHOD FOR TESTING FOR KEY ROOF BLOCK SAGING IN BIDIRECTIONAL STATIC-DYNAMIC LOADING |
| CN110608957A (en) * | 2018-06-15 | 2019-12-24 | 长发达工业股份有限公司 | Falling weight type impact tester |
| CN110455621A (en) * | 2019-08-06 | 2019-11-15 | 深圳市市政工程总公司 | The compressive strength test method of the building castoff mixture of stabilized with inorganic binder |
| CN114441285A (en) * | 2022-02-08 | 2022-05-06 | 西南交通大学 | Power test device and method for simulating train load |
| CN114441285B (en) * | 2022-02-08 | 2023-04-21 | 西南交通大学 | A dynamic test device and method for simulating train load |
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