CN105424527B - The falling zone immersion of one kind simulation reservoir stability air-dries rock ringing test instrument - Google Patents
The falling zone immersion of one kind simulation reservoir stability air-dries rock ringing test instrument Download PDFInfo
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- CN105424527B CN105424527B CN201610000352.6A CN201610000352A CN105424527B CN 105424527 B CN105424527 B CN 105424527B CN 201610000352 A CN201610000352 A CN 201610000352A CN 105424527 B CN105424527 B CN 105424527B
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- G—PHYSICS
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- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
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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
- G01N3/56—Investigating resistance to wear or abrasion
- G01N3/567—Investigating resistance to wear or abrasion by submitting the specimen to the action of a fluid or of a fluidised material, e.g. cavitation, jet abrasion
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Abstract
The falling zone immersion of one kind simulation reservoir stability air-dries ringing experimental rig, including test apparatus housing, housing upper is provided with cover plate, and bottom is provided with base, and cover plate is provided with sample tap, bleeder screw, water inlet pipe, base is provided with outlet pipe and is connected with water tank, water circulation system is collectively formed, is provided with metal porous disc sample holder in housing, pressure air bag is placed in housing, pressure air bag is connected with control pressurer system, and temperature control heating device is arranged on base.Invention is provided with dynamic and static water circulation control device simultaneously, soaks and air-dries EGR, can simulate the eustasy of reservoir level and the dissolution characteristics of rock, souring under the water pressure state of storehouse.By simulated test, reliable test data foundation can be provided for the protection of research large reservoir reservoir stability and Evaluation of Geologic Hazards prediction.
Description
Technical field
The present invention relates to the water in rock mechanics experiment field-rock Experiment on Function device, it can be used to study reservoir stability and disappear
Fall the damage deterioration effect under immersion-air-dried cycling condition, under the conditions of different water pressures and under condition of different temperatures with rock mass
Should and degradation mechanism.
Background technology
A large amount of geotechnical engineering problems are it should be understood that the characteristic of water-rock effect.Reservoir stability due to the change of reservoir level, water-
Rock effect is carried out under the conditions of immersion-air-dried circulation environment and certain water pressure, and water rock chemical reaction will be soaked
Bubble-air-dry circulation, water pressure and Water Temperature, the physico mechanical characteristic deterioration rule of the lower reservoir stability rock mass of water-rock effect
The safety of reservoir stability will be directly affected.At present, the research to water-rock effect focuses on different moisture state or short-term, long
The immersion of phase, seldom consider the cyclic process soaked-air-dried, also without the change of water pressure when preferably considering to soak, lack
A kind of instrument can preferably simulate the actual environmental effect of reservoir stability falling zone rock mass.
The content of the invention
The invention aims to provide one kind can simulate reservoir stability falling zone soak-air-dry cyclic process and hydraulic pressure
The water of power eustasy-rock Experiment on Function instrument.
The object of the present invention is achieved like this：Soak-air-dry ringing experiment in one kind simulation reservoir stability falling zone
Device includes test instrument housing, and housing upper is provided with cover plate, and bottom is provided with base, and metal porous disc sample support is provided with housing
Frame, by hollow steel pipe with holes by bearing bearing metal porous disc sample holder, cover plate is provided with water inlet pipe, bleeder screw and takes
Sample mouth, pressure air bag are placed in housing, and pressure air bag is connected with air bag intake valve;
Hollow steel pipe with holes in housing is supported by hollow bearing；To be hollow inside hollow bearing, and both sides set each sky
Septum cordis layer, and there is hole at the top of hollow bearing；
Heating rod and temperature sensor are fixed with hollow bearing, and ventilating opening and row are provided with hollow bearing lower end
Go out excess water and water sampling mouth, and air blower is set at ventilating opening.
Further, the reinforcing bar fixed by reinforcing bolt is provided between cover plate and base, and in cover plate and housing
Between, between base and housing be provided with packing ring.
Further, water circulation control system includes water inlet pipe, inlet valve, water pump, outlet pipe, flowing water Valve and water
Case control valve and water tank, water tank are connected by outlet pipe with housing bottom, and outlet valve is provided with outlet pipe, and water tank passes through water inlet
Pipe is connected with housing upper, and inlet valve is provided with water inlet pipe, and the water in water tank is pumped into water inlet pipe by water pump.
Further, the trapping set being enclosed on steel pipe is additionally provided with housing, the trapping covers one end and is located in housing, is another
End is located at outside housing, and the termination being located at outside housing is provided with cover plate, and the trapping being located in housing is put provided with multiple passages.
Further, temperature sensor and power sources in series, and by temperature detect switch (TDS) control heating rod work.
Further, pressure air bag is hollow annular structure.
Further, vent valve is provided between gas bomb and pressure gauge, air pressure regulator is connected with pressure gauge, air pressure adjustment
Valve is connected by connecting tube with air bag intake valve, thus collectively constitutes control pressurer system.
Further, sample holder is made up of by two pieces the half-round metal porous disc that can freely rotate of the discrepancy in elevation, and
And it is respectively equipped with spacing column and hole in the intersection of two pieces of half-round metal porous discs.
It is also possible that it is provided with filler between outer surface of steel tube and trapping set inner surface.
It is also possible that filler is sand, stone or soil.
The present invention provides simulation reservoir stability falling zone and soaks-air-dry water-rock ringing test instrument, the pressure of the instrument
The water pressure of room is controlled by external pressure controller, it is possible to achieve the phase of simulation rock and water under the conditions of different water pressures
Interaction；Test instrument is provided with dynamic and static water circulation control device simultaneously, passes through the water tank company with water pump and cover plate and base respectively
Connect, the disturbance of simulated reservoir water；Water sampling mouth is set, water sample can be conveniently obtained, to carry out aqueous solution analysis；In addition, experiment
Instrument is provided with dry, wet cycler, the influence of simulated reservoir bank storehouse water rise and fall.
The present invention also has the characteristics of simple in construction, easy to operate, safe and reliable：It can simulate in storehouse water pressure repeated action
And under temperature action rock dissolution characteristics, for research large reservoir riverside rebuilding mechanism provide test platform；May be used also simultaneously
With disintegrating procedue of the simulation rock under flowing pressure state, coordinate the research of rock mechanics damage test, further clearly dynamic
Rock mechanics micromechanism of damage under hydraulic condition, reliable test data is provided for bank slopes maintenance and Advance geological prediction and forecast.
The mentality of designing of the present invention is as follows：In view of the requirement of capacity and operability, by Instrument Design be one meter in diameter,
High one meter of cylinder；Transparent shell facilitates test situation in optical viewer；Top sampling lid avoids the whole cover plate of dismounting
Situation, it is contemplated that enter drainage situation, be provided with steam vent, water inlet pipe and outlet pipe in cover plate and base respectively；Sample tray designs
For metal porous disc, beneficial to sample contact with water or air, while every layer of sample tray is designed as the two panels semicircle of the discrepancy in elevation
Shape plate, it is easy to take lower sample after stacking, correspondence position is provided with spacing column and hole in addition, and being convenient for fixation prevents from sliding
Overturn sample；The center pillar of supporting tray is made up of hollow steel pipe with holes, is connected with the square box hollow bearing at base center, is improved
Air-dry efficiency；Instrument bottom uses roller, facilitates the carrying and movement of instrument.
Brief description of the drawings：
The invention will be further described with reference to the accompanying drawings and examples：
Fig. 1 is the structural representation that ringing experimental rig is soaked-air-dried in present invention simulation reservoir stability falling zone.
Fig. 2 is Fig. 1 top view.
Fig. 3 is immersion-air-dried circulation that ringing experimental rig is soaked-air-dried in present invention simulation reservoir stability falling zone
And water temperature heating system schematic.
Fig. 4 is the sampling lid detail drawing that ringing experimental rig is soaked-air-dried in present invention simulation reservoir stability falling zone.
Fig. 5 is that the metal that ringing experimental rig is soaked-air-dried in simulation reservoir stability falling zone of the invention is permeable board-like
Sample bracket detail drawing.
Fig. 6 is the preferred structure signal that ringing experimental rig is soaked-air-dried in present invention simulation reservoir stability falling zone
Figure.
In such as figure, housing 1, cover plate 2, base 3, sample tray 4, steel pipe 5, bearing 6, water inlet pipe 7, bleeder screw 8, sampling
Mouth 9, pressure air bag 10, air bag intake valve 11, reinforcing bolt 12, reinforcing bar 13, packing ring 14, inlet valve 15, water pump 16, water outlet
Pipe 17, flowing water Valve 18, hollow bearing 21, heating rod 22, temperature sensor 23, ventilating opening 24, discharge excess water and water sampling
Mouthfuls 25, air blower 26, attaching plug 27, temperature detect switch (TDS) 28, air pressure regulator 29, pressure gauge 30, vent valve 31, gas bomb 32,
Spacing column 33, hole 34, air intake valve 39, bottom valve 40, hand handle 41, rock sample 42, trapping set 43.
Embodiment：
Soak-air-dry ringing experimental rig, including test instrument body shell body, housing in one kind simulation reservoir stability falling zone
Top is provided with cover plate, and bottom is provided with base and water tank, and metal porous disc sample holder is provided with housing, and cover plate is provided with and taken
Sample lid, water inlet pipe and bleeder screw, pressure air bag are placed in housing, and pressure air bag passes through air bag intake valve and control pressurer system
Connection.Temperature control heating device is arranged on lower housing portion, is connected with ventilating opening and water sampling mouth.Between cover plate and base be provided with by
Reinforce the reinforcing bar that bolt is fixed.Pressure air bag is hollow annular structure.Control pressurer system includes gas bomb, gas bomb and pressure
Vent valve is provided between power table, air pressure regulator is connected with pressure gauge, and air pressure regulator is connected by connecting tube and air bag intake valve
Connect.Temperature control heating device is arranged at base center.Based on square supporting, including heating rod, temperature sensor, temperature control are opened
Close, be connected in outside with power supply.
In Fig. 1,2,4, ringing experimental rig is soaked-air-dried in simulation reservoir stability falling zone includes housing 1, housing
1 top is provided with cover plate 2, and bottom is provided with base 3, is provided with metal porous disc sample holder 4 in housing 1, base 3 is provided with hollow branch
Seat 21, sample tray 4（See in Fig. 5, sample holder 4 is by two pieces of half-round metal porous discs that can freely rotate for having the discrepancy in elevation
Composition, and it is respectively equipped with spacing column 33 and hole 34 and hollow steel with holes in the intersection of two pieces of half-round metal porous discs
Pipe 5 is connected by bearing 6, and cover plate 2 is provided with water inlet pipe 7, bleeder screw 8 and sample tap 9, and lower base 3 is provided with outlet pipe 17,
Air bag intake valve 11.Pressure air bag 10 is placed in housing 1, and pressure air bag 10 is connected by air bag intake valve 11 and control pressurer system
Connect, exclude excess water and water sampling mouth 25 communicates with the inside square box hollow bearing 21 of housing 1.Ventilating opening 24 is simultaneous with excluding excess water
Water sampling mouth 25 is connected.In Fig. 1,3, the hollow steel pipe 5 with holes in housing 1 is supported by hollow bearing 21；In hollow bearing 21
Portion is hollow, and both sides respectively set hollow interlayer, and the top of hollow bearing 21 has hole；
Heating rod 22 and temperature sensor 23 are fixed with hollow bearing 21, and is provided with and leads in the lower end of hollow bearing 21
Air port 24 and discharge excess water and water sampling mouth 25, and air blower 26, heating rod 22 and TEMP are set at ventilating opening 24
Device 23 is separately fixed at the side-walls of 3 square box hollow bearing of base 21, and the outside of base 3 is provided with temperature detect switch (TDS) 28 and heating rod 22, temperature
Degree sensor 23 is connected, and temperature sensor 23 is connected with heating rod 22 in immersion-air-dried circulation and water temperature heating system, and
Centre sets temperature detect switch (TDS) 28, and temperature sensor 23 and attaching plug 27 are directly connected to；Pressure air bag 10 is hollow annular structure.
Preferably, it is provided between cover plate 2 and base 3 and reinforces the reinforcing bar 13 that bolt 12 is fixed.
Control pressurer system includes gas bomb 32, and vent valve 31, air pressure adjustment are provided between gas bomb 32 and pressure gauge 30
Valve 29 is connected with pressure gauge 30, and air pressure regulator 29 is connected by connecting tube with air bag intake valve 11.
Water inlet pipe 7 is connected with water pump 16 in water circulation system, and the outlet pipe 17 of the bottom of base 3 is provided with flowing water Valve 18, water
Water tank control valve 19 is provided between pump 16 and water tank, inlet valve 15 is provided between water pump 16 and water inlet pipe 7.
Preferably, cover plate 2 is provided with hand handle 41.
In Fig. 6, the trapping set 43 being enclosed on steel pipe 5 is additionally provided with housing 1, trapping covers 43 one end and is located in housing, is another
One end is located at outside housing 1, and the termination being located at outside housing is provided with cover plate, covers cover plate during work, the trapping set being located in housing
It is provided with multiple passages.
Preferably, the outer surface of steel pipe 5 and trapping set inner surface between be provided with filler, if filler be sand, stone or
Soil, the gas that can be blown out by steel pipe 5, filler blowout trapping is covered 43, so as to simulate more real natural environment,
In reality, reservoir does not only have washing away for water, and the impact of the mud, sand that are also mingled with water can be by adding sand, stone, soil
Ratio and the speed of blow gas carry out the souring under simulation varying environment, can be with if filler is steel disc
The gas in steel pipe 5 is prevented to be blown into by trapping set 43 in housing 1, by the height for controlling filler to fill, trapping is covered on 43
The passage ventilation of that position.
Operation principle is as follows：
The rock sample 42 made is put into by housing 1 first, in the water pressure room of cover plate 2 and the grade composition of base 3, point
Layer is put, or as in Fig. 6, is put into the rock sample 42 of a monoblock within the case 1；
Air intake valve 39 and bottom valve 40 are closed, seals sample tap 9, opens inlet valve 15 and water tank control valve
19, by the water in water tank 20 by water pump 16 from the water filling into water pressure room of water inlet pipe 7, bleeder screw 8 is opened during water filling, will
Water pressure room air is discharged, until after water diffuses out water inlet pipe 7, is closed water tank control valve 19, is tightened bleed screw 8.Tested
Cheng Zhong, the continuous firing of water pump 16 make water simulate rivers bank current by controlling the rotating speed of water pump 16 in state is circulated
Dynamically.
Pressure air bag 10 is connected with external pressure control system, the gas bomb 32 of control system uses the gas filled with nitrogen
Bottle, the master switch of gas bomb 32 is opened, the pressure gauge 30 of source of the gas shows the pressure value of gas bomb 32, closes air bag intake valve 11, beats
Open air valve 31 has detected whether air-flow discharge, closes vent valve 31 afterwards, air pressure regulator 29 is slowly rotated, when pressure gauge 30
After the pressure of upper display reaches the pressure required for experiment, open air bag intake valve 11 and inflated to pressure air bag 10, now passed through
Pressure needed for stable experiment is transmitted feedwater, shape by external pressure system by being positioned over the pressure air bag 10 of water pressure room bottom
Into with external pressure system identical pressure, realize the simulation of storehouse water pressure.
Heating rod 22 is powered, controls heating rod 22 to work by temperature sensor 23 and temperature detect switch (TDS) 28, when water temperature reaches
During to predetermined temperature range, now temperature sensor is passed on to temperature switch 28 and instructed, and temperature detect switch (TDS) 28 disconnects, then heating rod 22
It is stopped；When temperature sensor 28, which measures water temperature, is less than predetermined temperature range, temperature detect switch (TDS) 28 closes automatically, so that plus
Hot pin is started working, and realizes the temperature control of the immersion aqueous solution, can be as requested from water sampling mouth 25 in immersion process
Water sampling carries out ion component and concentration analysis.
Have after pressure immersion terminates, close the master switch of gas bomb 32, open pressure-regulating valve 29 and vent valve 31, exclude pressure
Residual gas in strength capsule；Inlet valve 7 is closed, flowing water Valve 18, water pump 16 and water tank control valve 19 is opened, water is pumped into
Water tank 20, after the water in device drains, open the water in discharge remaining water and the discharge square box hollow bearing of water sampling mouth 25；So
Bottom valve 40 is closed afterwards, is opened air intake valve 39, is heated using heating rod 22, divulged information with air blower 24 into housing, so as to
Make rock sample accelerate to air-dry, simulate falling zone air drying process.
According to the testing program of setting, terminate in immersion or air-dried ending phase can take out rock sample and carry out physical mechanics
Experiment, test relevant parameter.
During the experiment for needing simulation to be washed away containing mud, sand, stone, can be added in trapping covers 43 the mud prepared, sand,
Stone, and start air blower 26, bottom valve 40 is closed, blows out mud, sand, stone in trapping set 43 by air blower 26.
Claims (4)
1. rock ringing experimental rig, including test instrument housing are soaked-air-dried in one kind simulation reservoir stability falling zone（1）, its
It is characterised by：Housing（1）Top is provided with cover plate（2）, bottom is provided with base（3）, in housing（1）It is interior to be provided with metal porous disc sample
Bracket（4）, by hollow steel pipe with holes（5）Pass through bearing（6）Bearing metal porous disc sample holder（4）, cover plate（2）Be provided with into
Water pipe（7）, bleeder screw（8）And sample tap（9）, pressure air bag（10）It is placed in housing（1）It is interior, pressure air bag（10）Enter with air bag
Air valve（11）Connection;
Housing（1）Interior hollow steel pipe with holes（5）By hollow bearing（21）Supporting；Hollow bearing（21）Inside is hollow, and
Both sides respectively set hollow interlayer, and hollow bearing（21）Top has hole；
In hollow bearing（21）Inside it is fixed with heating rod（22）And temperature sensor（23）, and in hollow bearing（21）Lower end is set
There is ventilating opening（24）With discharge excess water and water sampling mouth（25）, and in ventilating opening（24）Place sets air blower（26）；
In cover plate（2）And base（3）Between be provided with by reinforcing bolt（12）Fixed reinforcing bar（13）, and in cover plate（2）With
Housing（1）Between, base（3）With housing（1）Between be provided with packing ring（14）；
Water circulation control system includes water inlet pipe（7）, inlet valve（15）, water pump（16）, outlet pipe（17）, flowing water Valve（18）
And water tank control valve（19）And water tank（20）, water tank connected by outlet pipe with housing bottom, and water outlet is provided with outlet pipe
Valve, water tank are connected by water inlet pipe with housing upper, and inlet valve is provided with water inlet pipe, and the water in water tank is drawn into by water pump
In water pipe；
The housing（1）On be additionally provided with and be enclosed on steel pipe（5）On trapping set（43）, the trapping set（43）One end is located at housing
The interior, other end is located at housing（1）Outside, the termination being located at outside housing is provided with cover plate, and the trapping being located in housing is put provided with more
Individual passage;
Sample holder（4）It is made up of by two pieces the half-round metal porous disc that can freely rotate of the discrepancy in elevation, and two and half
The intersection of circular metal porous disc is respectively equipped with spacing column（33）And hole（34）;
Described steel pipe（5）Filler is provided between outer surface and trapping set inner surface, the filler is sand, stone or mud
Soil.
2. rock ringing experimental rig, its feature are soaked-air-dried in simulation reservoir stability falling zone according to claim 1
It is：Temperature sensor（23）With attaching plug（27）Series connection, and by temperature detect switch (TDS)（28）Control heating rod（22）Work.
3. rock ringing experimental rig, its feature are soaked-air-dried in simulation reservoir stability falling zone according to claim 1
It is：Pressure air bag（10）For hollow annular structure.
4. rock ringing experimental rig, its feature are soaked-air-dried in simulation reservoir stability falling zone according to claim 1
It is：Gas bomb（32）With pressure gauge（30）Between be provided with vent valve（31）, air pressure regulator（29）With pressure gauge（30）Connection,
Air pressure regulator（29）Pass through connecting tube and air bag intake valve（11）Connection.
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| CN201610000352.6A CN105424527B (en) | 2016-01-01 | 2016-01-01 | The falling zone immersion of one kind simulation reservoir stability air-dries rock ringing test instrument |
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