CN109580395A - A kind of drop impact rock shearing creep testing machine and test method - Google Patents
A kind of drop impact rock shearing creep testing machine and test method Download PDFInfo
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- CN109580395A CN109580395A CN201910015482.0A CN201910015482A CN109580395A CN 109580395 A CN109580395 A CN 109580395A CN 201910015482 A CN201910015482 A CN 201910015482A CN 109580395 A CN109580395 A CN 109580395A
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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
- G01N3/28—Investigating ductility, e.g. suitability of sheet metal for deep-drawing or spinning
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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
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
- G01N3/303—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated only by free-falling weight
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0025—Shearing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0032—Generation of the force using mechanical means
- G01N2203/0039—Hammer or pendulum
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0071—Creep
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention belongs to rock mechanics testing fields, and in particular to a kind of drop impact rock shearing creep testing machine and test method.Technical scheme is as follows: a kind of drop impact rock shearing creep testing machine, including accumulator, loading system and drop impact mechanism, the accumulator provides steady pressure for the loading system, the loading system makes rock sample be in shear creep state, and the drop impact mechanism carries out the dynamic impulsion of normal direction by the loading system to rock sample.The present invention makes rock sample be in shear creep state by accumulator control, then the dynamic impulsion for carrying out normal direction that drops hammer is utilized, influence of the tangential dynamic loading of normal direction dynamic disturbances generation to rock sample shear creep state is studied, and then research trends disturb the rock shearing creep buckling mechanism led to.
Description
Technical field
The invention belongs to rock mechanics testing fields, and in particular to a kind of drop impact rock shearing creep testing machine
And test method.
Background technique
During mining, the disasters such as slope and land slide, the top plate of fault activation induction collapse not only influence daily
Mining activity, and the safety usually seriously threatened to mine personnel and mining machinery.There are many factor for inducing fault activation, quick-fried
Broken stress wave has important influence to the activation of exploitation process interrupt layer as one of the most common type external world dynamic load.Deep
Tomography in rock mass is in high-ground stress environment, is in rheology for a long time, after external disturbance, is easy to produce shearing and slides
It moves, therefore carry out the shear creep experiment after dynamic disturbances there is great meaning for exploring the fault slip that Explosion stress wave is led to
Justice.But existing shear testing maschine can only do creep test or Impulsive load, not yet combine shear creep with dynamic disturbances,
It is difficult to meet the needs of laboratory research.
Summary of the invention
The present invention provides a kind of drop impact rock shearing creep testing machine and test method, makes rock by accumulator control
Stone sample is in shear creep state, then using the dynamic impulsion for carrying out normal direction that drops hammer, studies what normal direction dynamic disturbances generated
Tangential influence of the dynamic loading to rock sample shear creep state, and then research trends disturb the rock shearing creep buckling led to
Mechanism.
Technical scheme is as follows:
A kind of drop impact rock shearing creep testing machine, including accumulator, loading system and drop impact mechanism, it is described
Accumulator provides steady pressure for the loading system, and the loading system makes rock sample be in shear creep state, described
Drop impact mechanism carries out the dynamic impulsion of normal direction by the loading system to rock sample.
Further, the drop impact rock shearing creep testing machine, wherein the loading system includes cabinet, water
Cylinder pressure one, jacking block, shear box, perpendicular positioning bolt, outside vertical location nut, inner vertical location nut, guide rail, sliding block,
Mobile cushion block, hydraulic cylinder two, shearing cushion block, horizontal location bolt, inside horizontal location nut and outside horizontal location nut, water
Cylinder pressure one is arranged on the bottom surface of the cabinet, and the jacking block is mounted on the cylinder column of hydraulic cylinder one, and the shear box includes upper
Portion and lower part, the shear box are placed on the jacking block, for placing rock examination between shear box top and shear box lower part
Sample；Perpendicular positioning bolt is mounted on the top plate of the cabinet by outside vertical location nut and inner vertical location nut；
A pair of parallel vertical T-slot, the both ends point of the guide rail are respectively equipped on the inside of the opposite two side walls of the cabinet
Not She You T-type end, the T-type end of a pair of guide rail is separately mounted in the T-slot of the cabinet；The sliding block and a pair
The guide rail is slidably connected together, and mobile cushion block is connected with the slide block together；The cabinet is arranged in hydraulic cylinder two
On side wall, the cylinder column of hydraulic cylinder two is used to withstand on the side on shear box top；Shearing cushion block is placed on the jacking block, with shearing
Box lower part is adjacent to placement；The side wall of the cabinet is equipped with two parallel vertical through slots, and a pair of of horizontal location bolt passes through interior
Side horizontal location nut and outside horizontal location nut are mounted in the through slot.
Further, the drop impact rock shearing creep testing machine, wherein the accumulator is arranged in pressurizer tank
Interior, the accumulator is connected by water injection pipe one with hydraulic cylinder one, and water injection pipe one is equipped with pressure reducing valve one；The accumulator passes through
Water injection pipe two is connected with hydraulic cylinder two, and water injection pipe two is equipped with pressure reducing valve two；The accumulator is equipped with water injection pipe three, water injection pipe three
It is equipped with water injection valve, water pump passes through the water filling of accumulator described in water injection pipe three-dimensional；Pressure reducing valve one passes through connecting tube one and counterbalance valve one
It is connected, counterbalance valve one is equipped with drainpipe one；Pressure reducing valve two is connected by connecting tube two with counterbalance valve two, and counterbalance valve two is equipped with draining
Pipe two；The pressurizer tank is equipped with sink one, and the outlet end setting of drainpipe one and drainpipe two is in sink one.
Further, the drop impact rock shearing creep testing machine, wherein being equipped with sink two, water by the cabinet
Cylinder pressure one is equipped with drainpipe three, and hydraulic cylinder two is equipped with drainpipe four, and the outlet end setting of drainpipe three and drainpipe four is in sink
In two.
Further, the drop impact rock shearing creep testing machine, wherein the drop impact mechanism includes branch
Frame, fixed pulley, wirerope, electromagnet, electromagnet guide plate, drops hammer, drop hammer guide plate and impact hammer head at rolled round, and the bracket includes
Two parallel guide rods, the guide rod are vertically set on the top of the cabinet, and the rolled round is mounted on the side wall of the cabinet
On, the fixed pulley is mounted on the top of the bracket；Impact hammer head setting is in perpendicular positioning bolt upper end, the guide plate that drops hammer suit
On two guide rods, it is described drop hammer to be mounted on drop hammer on guide plate, it is described drop hammer it is corresponding with impact hammer head position；Electromagnet is led
On two guide rods, the electromagnet is mounted on electromagnet guide plate sleeve-board；It is shaken with described one end of the wirerope
Wheel connection, the other end and the electromagnet guide plate of the wirerope link together, and the wirerope bypasses the rolled round and described
Fixed pulley.
Further, the drop impact rock shearing creep testing machine, wherein further include information acquisition control system,
The information acquisition control system includes that computer, deformeter, pressure sensor one, pressure sensor two, conducting wire and electromagnet are opened
It closes, pressure sensor one is mounted on the cylinder column of hydraulic cylinder one, and pressure sensor two is mounted on the cylinder column of hydraulic cylinder two, pressure
Sensor one and pressure sensor two are connected by the conducting wire with the deformeter, and the deformeter and electro-magnet switch pass through
The conducting wire is connected with the computer；The electro-magnet switch is connected by the conducting wire with the electromagnet.
A kind of drop impact rock shearing creep test method, using above-mentioned drop impact rock shearing creep testing machine,
Include the following steps:
1) under the premise of pressure reducing valve one, pressure reducing valve two are closed, water pump is connect with water injection pipe three, opens water injection valve, it is high
Water is pressed to enter accumulator by water injection pipe three, until the registration of the pressure gauge on accumulator reaches 15MP, closing water injection valve, by water
Pump is disconnected with water injection pipe three, removes water pump, and accumulation of energy work is completed；
2) rock sample is put into shear box, shear box is put into the center of jacking block；Vertical direction raises first
The height of the cylinder column of whole hydraulic cylinder one, the cylinder column center and shear box top for making hydraulic cylinder two are in sustained height；Subsequent level side
It moves sliding block along guide rail upwards, mobile cushion block is made to be located at shear box overcentre；T of the T-type end of its rear rail along cabinet
Type groove is mobile, is bonded mobile cushion block with shear box top；It is fixed by adjusting outside vertical location nut and inner vertical later
Position nut is in close contact mobile cushion block and shear box top so that perpendicular positioning bolt holds out against sliding block；
3) shearing cushion block is placed on jacking block, is adjacent to placement with shear box lower part；Unclamp inside horizontal location nut and
Outside horizontal location nut makes horizontal location bolt, inside horizontal location nut and outside horizontal location nut along the through slot
It is mobile, until horizontal location bolt and shearing cushion block make horizontal location bolt hold out against shearing cushion block in same level, until
It shears cushion block and shear box lower part is in close contact, then tighten inside horizontal location nut and outside horizontal location nut, sample
It places and completes；
4) pressure reducing valve one is opened, the high pressure water in accumulator is entered in hydraulic cylinder one by water injection pipe one, hydraulic cylinder one
Cylinder column rise, active force is applied to rock sample by pressure sensor one, pressure sensor one passes information to strain
Instrument, real-time display opens big pressure reducing valve one when showing that pressure is less than goal pressure to the data of deformeter on computers, until arriving
Up to goal pressure；When showing that pressure is greater than goal pressure, the counterbalance valve one connecting with pressure reducing valve one is opened, by pressure reducing valve one
High pressure water releases a part, and then reduces the pressure in hydraulic cylinder one, and observation display pressure adjusts counterbalance valve one, until pressure
Power drops to target pressure value；
5) pressure reducing valve two is opened, the high pressure water in accumulator is entered in hydraulic cylinder two by water injection pipe two, hydraulic cylinder two
Cylinder column rise, active force is applied to rock sample by pressure sensor two, pressure sensor two passes information to strain
Instrument, real-time display opens big pressure reducing valve two when showing that pressure is less than goal pressure to the data of deformeter on computers, until arriving
Up to goal pressure；When showing that pressure is greater than goal pressure, the counterbalance valve two connecting with pressure reducing valve two is opened, by pressure reducing valve two
High pressure water releases a part, and then reduces the pressure in hydraulic cylinder two, and observation display pressure adjusts counterbalance valve two, until pressure
Power drops to target pressure value；Pressure, which applies, to be completed；
6) outside vertical location nut is unclamped；By adjusting rolled round, wirerope is controlled, declines electromagnet guide plate, makes electricity
Magnet is contacted with dropping hammer；Electro-magnet switch is opened in information acquisition control system, electromagnet will drop hammer and pick up, rolled round is rotated,
Wirerope is shunk, and by electromagnet and drop hammer lifting to certain altitude, hoisting depth is tested using tape measure, later in information collection control
Electro-magnet switch is closed in system processed, electromagnet loses magnetism, and drop hammer the striking impact tup that falls, and then acts on rock sample
Apply load.
The working principle of the invention is that distilled water is injected into accumulator by flood pattern, and accumulator mentions for loading device
For steady pressure, and then rock sample is made to be in shear creep state, applies disturbing load using drop impact in this state,
The data such as direct stress, shear stress and the shear displacemant in experimentation are acquired and recorded with information acquisition control system, and research is dynamic
State disturbs the shear creep unstability led to.
The invention has the benefit that the present invention can not only be cut using drop impact rock shearing creep testing machine
The dynamic loading test of normal direction is carried out after cutting creep test rock can also being made to be in shear creep state, dynamic disturbances triggering
Rock shearing creep buckling mechanism.
Detailed description of the invention
Fig. 1 drop impact rock shearing creep testing machine structural schematic diagram；
Fig. 2 is accumulator part annexation figure；
Fig. 3 is loading system CONSTRUCTED SPECIFICATION figure.
In figure: 1-- computer；2-deformeters；3-conducting wires；4-hydraulic cylinders one；5-pressure sensors one；6-shear pads
Block；7-inside horizontal location nuts；8-horizontal location bolts；9-outside horizontal location nuts；11-- outside vertical positions spiral shell
It is female；12-guide rods；13-drop hammer；14-electromagnet；15-wirerope；16-electromagnet guide plates；17-drop hammer guide plate；18-punchings
Hammer head；19-water injection pipes two；20-hydraulic cylinders two；21-drainpipes four；22-sinks two；23-drainpipes three；24-notes
Water pipe one；25-pressure reducing valves two；26-water injection valves；27-water injection pipes three；28-pressure reducing valves one；29-pressurizer tanks；31-accumulation of energys
Device；32-water pumps；33-connecting tubes one；34-counterbalance valves one；35-drainpipes one；36-sinks one；37-- inner vertical is fixed
Position nut；38-sliding blocks；39-T-slots；40-guide rails；41-mobile cushion blocks；42-rock samples；43-through slots；44-pressures
Force snesor two.
Specific embodiment
As shown in Figure 1-3, a kind of drop impact rock shearing creep testing machine, a kind of drop impact rock shearing creep examination
Machine, including accumulator 31, loading system, drop impact mechanism and information acquisition control system are tested, the accumulator 31 is described
Loading system provides steady pressure, and the loading system makes rock sample be in shear creep state, the drop impact mechanism
The dynamic impulsion of normal direction is carried out to rock sample by the loading system.
The loading system includes cabinet, hydraulic cylinder 1, jacking block, shear box, perpendicular positioning bolt, outside vertical positioning
Nut, inner vertical location nut 37, guide rail 40, sliding block 38, mobile cushion block 41, hydraulic cylinder 2 20, shearing cushion block 6, level are fixed
Position bolt 8, inside horizontal location nut 7 and outside horizontal location nut 9, hydraulic cylinder 1 is arranged on the bottom surface of the cabinet,
The jacking block is mounted on the cylinder column of hydraulic cylinder 1, and the shear box includes upper and lower part, and the shear box is placed on described
On jacking block, for placing rock sample 42 between shear box top and shear box lower part；Perpendicular positioning bolt passes through outside vertical
Location nut and inner vertical location nut 37 are mounted on the top plate of the cabinet；The opposite two side walls of the cabinet
Inside is respectively equipped with a pair of parallel vertical T-slot 39, and the both ends of the guide rail 40 are respectively equipped with T-type end, described in a pair
The T-type end of guide rail 40 is separately mounted in the T-slot 39 of the cabinet；The sliding block 3 connects with a pair of sliding of guide rail 40
It is connected together, mobile cushion block 41 links together with the sliding block 38；Hydraulic cylinder 2 20 is arranged on the side wall of the cabinet, water
The cylinder column of cylinder pressure 2 20 is used to withstand on the side on shear box top；Shearing cushion block 6 is placed on the jacking block, with shear box lower part
It is adjacent to placement；The side wall of the cabinet is equipped with two parallel vertical through slots 43, and a pair of of horizontal location bolt 8 passes through inside water
Flat location nut 7 and outside horizontal location nut 9 are mounted in the through slot 43.
The accumulator 31 is arranged in pressurizer tank 29, and the accumulator 31 passes through water injection pipe 1 and one 4 phase of hydraulic cylinder
Even, water injection pipe 1 is equipped with pressure reducing valve 1；The accumulator 31 is connected by water injection pipe 2 19 with hydraulic cylinder 2 20, is filled the water
Pipe 2 19 is equipped with pressure reducing valve 2 25；The accumulator 31 is equipped with water injection pipe 3 27, and water injection pipe 3 27 is equipped with water injection valve 26, water
Pump 32 is filled the water by water injection pipe 3 27 to the accumulator 31；Pressure reducing valve 1 passes through connecting tube 1 and one 34 phase of counterbalance valve
Even, counterbalance valve 1 is equipped with drainpipe 1；Pressure reducing valve two is connected by connecting tube two with counterbalance valve two, and counterbalance valve two is equipped with row
Water pipe two；The pressurizer tank 29 is equipped with sink 1, and the outlet end setting of drainpipe 1 and drainpipe two is in sink 1
It is interior.
Sink 2 22 is equipped with by the cabinet, hydraulic cylinder 1 is equipped with drainpipe 3 23, and hydraulic cylinder 2 20 is equipped with drainpipe
Four, the outlet end setting of drainpipe 3 23 and drainpipe four is in sink 2 22.
The drop impact mechanism include bracket, rolled round, fixed pulley, wirerope 15, electromagnet 14, electromagnet guide plate 16,
It drops hammer 13, drop hammer guide plate 17 and impact hammer head 18, the bracket includes two parallel guide rods 12, and the guide rod 12 is vertically arranged
At the top of the cabinet, the rolled round is mounted on the side wall of the cabinet, and the fixed pulley is mounted on the top of the bracket
End；Impact hammer head 18 is arranged in perpendicular positioning bolt upper end, and the guide plate 17 that drops hammer is sleeved on two guide rods 12, described to drop hammer
13 are mounted on and drop hammer on guide plate 17, it is described drop hammer it is 13 corresponding with 18 position of impact hammer head；Electromagnet guide plate 16 is sleeved on two institutes
It states on guide rod 12, the electromagnet 14 is mounted on electromagnet guide plate 16；One end of the wirerope 15 is connect with the rolled round,
The other end of the wirerope 15 links together with electromagnet guide plate 16, and the wirerope 15 is around the rolled round and described fixed
Pulley.
The information acquisition control system includes computer 1, deformeter 2, pressure sensor 1, pressure sensor 2 44, leads
Line 3 and electro-magnet switch, pressure sensor 1 are mounted on the cylinder column of hydraulic cylinder 1, and pressure sensor 2 44 is mounted on hydraulic pressure
On the cylinder column of cylinder 2 20, pressure sensor 1 and pressure sensor 2 44 are connected by the conducting wire 3 with the deformeter 2, institute
Deformeter 2 and electro-magnet switch is stated to be connected by the conducting wire 3 with the computer 1；The electro-magnet switch passes through the conducting wire 3
It is connected with the electromagnet 14.
A kind of drop impact rock shearing creep test implemented using above-mentioned drop impact rock shearing creep testing machine
Method includes the following steps:
1) under the premise of pressure reducing valve 1, pressure reducing valve 2 25 are closed, water pump 32 is connect with water injection pipe 3 27, opens note
Water valve 26, high pressure water enters accumulator 31 by water injection pipe 3 27, until the registration of the pressure gauge on accumulator 31 reaches 15MP,
Water injection valve 26 is closed, water pump 32 and water injection pipe 3 27 are disconnected, removes water pump 32, accumulation of energy work is completed；
2) rock sample 42 is put into shear box, shear box is put into the center of jacking block；First in vertical direction
The height for adjusting the cylinder column of hydraulic cylinder 1, the cylinder column center and shear box top for making hydraulic cylinder 2 20 are in sustained height；Subsequent water
It square moves sliding block 38 along guide rail 40 upwards, mobile cushion block 41 is made to be located at shear box overcentre；The T-type end of its rear rail 40
Head is moved along the T-slot 39 of cabinet, is bonded mobile cushion block 41 with shear box top；Spiral shell is positioned by adjusting outside vertical later
Female and inner vertical location nut 37 keeps mobile cushion block 41 and shear box top close so that perpendicular positioning bolt holds out against sliding block
Contact；
3) shearing cushion block 6 is placed on jacking block, is adjacent to placement with shear box lower part；Unclamp inside horizontal location nut 7
With outside horizontal location nut 9, make horizontal location bolt 8, inside horizontal location nut 7 and outside horizontal location nut 9 along institute
It is mobile to state through slot 43, until horizontal location bolt 8 and shearing cushion block 6 hold out against horizontal location bolt 8 and cut in same level
Cushion block 6 is cut, until shearing cushion block 6 and shear box lower part are in close contact, inside horizontal location nut 7 are then tightened and outside is horizontal
Location nut 9, sample, which is placed, to be completed；
4) pressure reducing valve 1 is opened, the high pressure water in accumulator 31 is entered in hydraulic cylinder 1 by water injection pipe 1, water
The cylinder column of cylinder pressure 1 rises, and applies active force to rock sample 42 by pressure sensor 1, and pressure sensor 1 is by information
Deformeter 2 is passed to, the data of deformeter 2 real-time display on computer 1 is opened and subtracted greatly when showing that pressure is less than goal pressure
Pressure valve 1, until reaching goal pressure；When showing that pressure is greater than goal pressure, the back pressure connecting with pressure reducing valve 1 is opened
The high pressure water of pressure reducing valve 1 is released a part, and then reduces the pressure in hydraulic cylinder 1 by valve 1, observation display pressure
Power adjusts counterbalance valve 1, until pressure drops to target pressure value；
5) pressure reducing valve 2 25 is opened, the high pressure water in accumulator 31 is entered in hydraulic cylinder 2 20 by water injection pipe 2 19,
The cylinder column of hydraulic cylinder 2 20 rises, and applies active force, pressure sensor 2 44 to rock sample 42 by pressure sensor 2 44
Pass information to deformeter 2, the data of deformeter 2 real-time display on computer 1, when showing that pressure is less than goal pressure,
Big pressure reducing valve 2 25 is opened, until reaching goal pressure；When showing that pressure is greater than goal pressure, unlatching is connect with pressure reducing valve 2 25
Counterbalance valve two, the high pressure water of pressure reducing valve 2 25 is released into a part, and then reduces the pressure in hydraulic cylinder 2 20, observation is shown
Show pressure, adjust counterbalance valve two, until pressure drops to target pressure value；Pressure, which applies, to be completed；
6) outside vertical location nut is unclamped；By adjusting rolled round, control wirerope 15 declines electromagnet guide plate 16,
Contact electromagnet 14 13 with dropping hammer；Open electro-magnet switch in information acquisition control system, electromagnet 14 will drop hammer 13 suctions
It rises, rotates rolled round, wirerope 15 is shunk, and by electromagnet 14 and 13 promotions of dropping hammer to certain altitude, is promoted using tape measure test high
Degree, closes electro-magnet switch, electromagnet 14 loses magnetism, and drop hammer 13 whereabouts striking impacts in information acquisition control system later
Tup 18, and then act on rock sample 42 and apply load.
Claims (7)
1. a kind of drop impact rock shearing creep testing machine, which is characterized in that including accumulator, loading system and drop impact
Mechanism, the accumulator provide steady pressure for the loading system, and the loading system makes rock sample be in shear creep
State, the drop impact mechanism carry out the dynamic impulsion of normal direction by the loading system to rock sample.
2. drop impact rock shearing creep testing machine according to claim 1, which is characterized in that the loading system packet
It includes cabinet, hydraulic cylinder one, jacking block, shear box, perpendicular positioning bolt, outside vertical location nut, inner vertical location nut, lead
Rail, sliding block, mobile cushion block, hydraulic cylinder two, shearing cushion block, horizontal location bolt, inside horizontal location nut and outside level are fixed
Position nut, hydraulic cylinder one are arranged on the bottom surface of the cabinet, and the jacking block is mounted on the cylinder column of hydraulic cylinder one, the shearing
Box includes upper and lower part, and the shear box is placed on the jacking block, for putting between shear box top and shear box lower part
Set rock sample；Perpendicular positioning bolt is mounted on the cabinet by outside vertical location nut and inner vertical location nut
On top plate；A pair of parallel vertical T-slot is respectively equipped on the inside of the opposite two side walls of the cabinet, the guide rail
Both ends are respectively equipped with T-type end, and the T-type end of a pair of guide rail is separately mounted in the T-slot of the cabinet；The sliding block
It is slidably connected together with a pair of guide rail, mobile cushion block is connected with the slide block together；Hydraulic cylinder two is arranged described
On the side wall of cabinet, the cylinder column of hydraulic cylinder two is used to withstand on the side on shear box top；Shearing cushion block is placed on the jacking block,
Placement is adjacent to shear box lower part；The side wall of the cabinet is equipped with two parallel vertical through slots, a pair of of horizontal location bolt
It is mounted in the through slot by inside horizontal location nut and outside horizontal location nut.
3. drop impact rock shearing creep testing machine according to claim 2, which is characterized in that the accumulator setting
In pressurizer tank, the accumulator is connected by water injection pipe one with hydraulic cylinder one, and water injection pipe one is equipped with pressure reducing valve one；The storage
Energy device is connected by water injection pipe two with hydraulic cylinder two, and water injection pipe two is equipped with pressure reducing valve two；The accumulator is equipped with water injection pipe three,
Water injection pipe three is equipped with water injection valve, and water pump passes through the water filling of accumulator described in water injection pipe three-dimensional；Pressure reducing valve one by connecting tube one with
Counterbalance valve one is connected, and counterbalance valve one is equipped with drainpipe one；Pressure reducing valve two is connected by connecting tube two with counterbalance valve two, counterbalance valve two
Equipped with drainpipe two；The pressurizer tank is equipped with sink one, and the outlet end setting of drainpipe one and drainpipe two is in sink one.
4. drop impact rock shearing creep testing machine according to claim 3, which is characterized in that be equipped with by the cabinet
Sink two, hydraulic cylinder one are equipped with drainpipe three, and hydraulic cylinder two is equipped with drainpipe four, and the outlet end of drainpipe three and drainpipe four is set
It sets in sink two.
5. drop impact rock shearing creep testing machine according to claim 4, which is characterized in that the drop impact machine
Structure includes bracket, rolled round, fixed pulley, wirerope, electromagnet, electromagnet guide plate, drops hammer, drop hammer guide plate and impact hammer head, described
Bracket includes two parallel guide rods, and the guide rod is vertically set on the top of the cabinet, and the rolled round is mounted on the case
On the side wall of body, the fixed pulley is mounted on the top of the bracket；Impact hammer head is arranged in perpendicular positioning bolt upper end, drops hammer
Guide plate is sleeved on two guide rods, it is described drop hammer to be mounted on drop hammer on guide plate, it is described drop hammer it is corresponding with impact hammer head position；
Electromagnet guide plate is sleeved on two guide rods, and the electromagnet is mounted on electromagnet guide plate；One end of the wirerope
It is connect with the rolled round, the other end and the electromagnet guide plate of the wirerope link together, and the wirerope shakes around described
Wheel and the fixed pulley.
6. drop impact rock shearing creep testing machine according to claim 5, which is characterized in that further include information collection
Control system, the information acquisition control system include computer, deformeter, pressure sensor one, pressure sensor two, conducting wire and
Electro-magnet switch, pressure sensor one are mounted on the cylinder column of hydraulic cylinder one, and pressure sensor two is mounted on the cylinder of hydraulic cylinder two
On column, pressure sensor one and pressure sensor two are connected by the conducting wire with the deformeter, the deformeter and electromagnetism
Iron switch is connected by the conducting wire with the computer；The electro-magnet switch is connected by the conducting wire with the electromagnet.
7. a kind of drop impact rock shearing creep test method, which is characterized in that utilize punching of dropping hammer as claimed in claim 6
Rock shearing creep testing machine is hit, is included the following steps:
1) under the premise of pressure reducing valve one, pressure reducing valve two are closed, water pump is connect with water injection pipe three, opens water injection valve, high pressure water
Enter accumulator by water injection pipe three, until the registration of the pressure gauge on accumulator reaches 15MP, close water injection valve, by water pump with
Water injection pipe three disconnects, and removes water pump, and accumulation of energy work is completed；
2) rock sample is put into shear box, shear box is put into the center of jacking block；Vertical Square adjusts upward water first
The height of the cylinder column of cylinder pressure one, the cylinder column center and shear box top for making hydraulic cylinder two are in sustained height；In subsequent horizontal direction
It moves sliding block along guide rail, mobile cushion block is made to be located at shear box overcentre；T-slot of the T-type end of its rear rail along cabinet
It is mobile, it is bonded mobile cushion block with shear box top；Spiral shell is positioned by adjusting outside vertical location nut and inner vertical later
Mother is in close contact mobile cushion block and shear box top so that perpendicular positioning bolt holds out against sliding block；
3) shearing cushion block is placed on jacking block, is adjacent to placement with shear box lower part；Unclamp inside horizontal location nut and outside
Horizontal location nut moves horizontal location bolt, inside horizontal location nut and outside horizontal location nut along the through slot,
Until horizontal location bolt and shearing cushion block make horizontal location bolt hold out against shearing cushion block in same level, until shearing
Cushion block and shear box lower part are in close contact, and then tighten inside horizontal location nut and outside horizontal location nut, and sample is placed
It completes；
4) pressure reducing valve one is opened, the high pressure water in accumulator is entered in hydraulic cylinder one by water injection pipe one, the cylinder of hydraulic cylinder one
Column rises, and applies active force to rock sample by pressure sensor one, pressure sensor one passes information to deformeter, answers
Real-time display opens big pressure reducing valve one when showing that pressure is less than goal pressure to the data of change instrument on computers, until reaching target
Pressure；When showing that pressure is greater than goal pressure, the counterbalance valve one connecting with pressure reducing valve one is opened, by the high pressure water of pressure reducing valve one
A part is released, and then reduces the pressure in hydraulic cylinder one, observation display pressure adjusts counterbalance valve one, until pressure drops to
Target pressure value；
5) pressure reducing valve two is opened, the high pressure water in accumulator is entered in hydraulic cylinder two by water injection pipe two, the cylinder of hydraulic cylinder two
Column rises, and applies active force to rock sample by pressure sensor two, pressure sensor two passes information to deformeter, answers
Real-time display opens big pressure reducing valve two when showing that pressure is less than goal pressure to the data of change instrument on computers, until reaching target
Pressure；When showing that pressure is greater than goal pressure, the counterbalance valve two connecting with pressure reducing valve two is opened, by the high pressure water of pressure reducing valve two
A part is released, and then reduces the pressure in hydraulic cylinder two, observation display pressure adjusts counterbalance valve two, until pressure drops to
Target pressure value；Pressure, which applies, to be completed；
6) outside vertical location nut is unclamped；By adjusting rolled round, wirerope is controlled, declines electromagnet guide plate, makes electromagnet
It is contacted with dropping hammer；Electro-magnet switch is opened in information acquisition control system, electromagnet will drop hammer and pick up, and rotate rolled round, steel wire
Rope is shunk, and by electromagnet and drop hammer lifting to certain altitude, is tested hoisting depth using tape measure, is controlled system in information collection later
Electro-magnet switch is closed in system, electromagnet loses magnetism, and drop hammer the striking impact tup that falls, and then acts on rock sample application
Load.
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