CN107192653A - The test device and test method of underground water seal cave depot rock mass water sealing condition - Google Patents
The test device and test method of underground water seal cave depot rock mass water sealing condition Download PDFInfo
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- CN107192653A CN107192653A CN201710539307.2A CN201710539307A CN107192653A CN 107192653 A CN107192653 A CN 107192653A CN 201710539307 A CN201710539307 A CN 201710539307A CN 107192653 A CN107192653 A CN 107192653A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 209
- 239000011435 rock Substances 0.000 title claims abstract description 82
- 238000012360 testing method Methods 0.000 title claims abstract description 46
- 238000007789 sealing Methods 0.000 title claims abstract description 40
- 238000010998 test method Methods 0.000 title claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 230000000007 visual effect Effects 0.000 claims abstract description 23
- 230000005520 electrodynamics Effects 0.000 claims abstract description 17
- 238000002474 experimental method Methods 0.000 claims abstract description 14
- 239000007789 gas Substances 0.000 claims description 105
- 238000006073 displacement reaction Methods 0.000 claims description 13
- 238000002347 injection Methods 0.000 claims description 13
- 239000007924 injection Substances 0.000 claims description 13
- 238000010008 shearing Methods 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 5
- 238000005304 joining Methods 0.000 claims description 5
- 238000005086 pumping Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000011017 operating method Methods 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 239000003915 liquefied petroleum gas Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004642 transportation engineering Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
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Abstract
The present invention relates to a kind of test device of the test device and test method, wherein underground water seal cave depot rock mass water sealing condition of underground water seal cave depot rock mass water sealing condition, it is characterised in that：Including frame and the rock core fastener being located in frame, the rock core fastener top is connected with water tank by upper plug head, the rock core fastener bottom is connected with gas tank by lower end cap, the water tank is provided with water filling port and upper discharge outlet, the electrodynamic pump that the water filling port connection is supplied water, the upper discharge outlet connects counterbalance valve and is additionally provided with visual window on hydraulic pressure, the water tank to control, in stable case；The gas tank is connected in liquid level gauge provided with four connectors, two of which connector, to measure during experiment water level in gas tank；Apparatus of the present invention can be used for the water sealing condition of test underground water seal cave depot rock mass, the advantage is that：Can be when testing rock mass water sealing condition, it is ensured that while gas-liquid is normally inputted, outside is in sealing state in experimental rig.
Description
Technical field：
The invention mainly relates to Geological Engineering, Oil-Gas Storage and Transportation Engineering, Geotechnical Engineering parameter testing field, more particularly, to one kind
The test device and test method of underground water seal cave depot rock mass water sealing condition.
Background technology：
Underground water seal cave depot is that cavern is excavated under stably waterline, then sets artificial water curtain in cavern's surrounding rock body,
So that producing specific groundwater pressure and hydraulic gradient in surrounding rock of chamber crack, prevent oil and liquefied petroleum gas from passing through rock mass
Crack is leaked, so as to reach the purpose of sealed storage.
Improve year by year in dependence on foreign countries for oil, under the background of western countries' oil conservation system gradual perfection, China in
Start within 2003 to establish national strategy oil reserve base, tentatively point three phases are carried out.In view of International Underground Storage Facility it is safe and environment-friendly,
Advantage in terms of saving expense and Economization on land, the second stage of Huang Island, Zhanjiang, Huizhou and 4, Jinzhou, the Danzhous of three phases, Jieyang,
Anqing, Chuxiong and Jagdaqi 5 use underground water seal cave depot form.Meanwhile, store the underground water seal hole of liquefied petroleum gas
Storehouse is also built in China many places, built and mainly have many places such as Shantou, Ningbo, Zhuhai, Huang Island Long Ze and Yantai Wanhua what is built
Place.The oil and gas reserve construction plan for making a general survey of the Chinese government and enterprise understands that underground water seal cave depot turns into oil gas energy storage
One of principal mode.
The core technology of underground water seal cave depot is underground water Sealing Technology（Water seal technology）.At present, China is to water seal technology
Still grasp inadequate, cause the crucial construction technique of underground water seal cave depot（Water curtain system is designed to be tried with efficiency test, cave depot seal
Test and control and run phase country rock long-time stability etc. with criterion, construction time level of ground water）Still mostly come from the official communication such as France, Sweden
Inquiry company.Cave depot engineering is built usually under one's control.
The content of the invention：
It is an object of the invention to provide a kind of test device and test method of underground water seal cave depot rock mass water sealing condition, the ground
The test device of lower water seal cave depot rock mass water sealing condition is conducive to disclosing the water sealing condition of underground water seal cave depot rock mass.
The test device of underground water seal cave depot rock mass water sealing condition of the present invention, it is characterised in that：Including frame and being located at machine
Rock core fastener on frame, the rock core fastener top is connected with water tank by upper plug head, and the rock core fastener bottom leads to
Cross lower end cap and be connected with gas tank, the water tank is provided with water filling port and upper discharge outlet, and the water filling port connects the electrodynamic pump supplied water,
The upper discharge outlet connects counterbalance valve and is additionally provided with visual window on hydraulic pressure, the water tank to control, in stable case；The gas tank is provided with
Four connectors, two of which connector is connected in liquid level gauge, to measure during experiment water level, two other connector in gas tank
Lower discharge outlet and gas injection port are respectively connected to, gas injection port is sequentially connected gas pressure regulating valve, compressed air source unit, and lower discharge outlet is used to discharge reality
Pressure rod is also embedded with inside unnecessary water during testing, the gas tank, pressure rod connects adding below gas tank by the screw rod that pressurizes
Motor is carried, when implementing shearing force, loading motor drives pressure rod to cause the core sample being located in rock core fastener body
Cut part and occur at the uniform velocity displacement；Water passage is provided with the upper plug head, with joining water box and core sample, the lower end cap
In be provided with air-liquid body flow channel.
Further, the size of above-mentioned water tank cavity part is diameter of phi=270mm, and height h=80mm, its bottom is left and right
Both sides connect the water filling port and upper discharge outlet respectively；The visual window cylinder is divided into two parts, and a part is top visual window,
Another part is side visual window；In process of the test, determine the gas for flowing through rock sample crack in upper plug head by each visual window
At the time of being emerged in passage, the critical condition to judge the holding water seal effect under a certain gas pressure.
Further, Φ=100mm, h=200mm core sample, in core examination are placed in above-mentioned rock core fastener
Connector below pressurization bed course, rock core fastener is set to be connected with confined pressure hand pump around sample, by shaking hand pump to core
Clamper internal pressurization bed course water filling, confined pressure is applied to reach to sample.
Further, above-mentioned upper and lower plug is fixed on the both ends of the surface of clamper with plug flange respectively, is connected with box flange
Water receiving case, gas tank, to prevent rock mass sample from upper and lower displacement occurring at the trial, keep the seal of experimentation Instrumental.
Further, the arch dead slot that a height is 15mm is set on above-mentioned upper plug head with core sample connecting portion,
With to local core sample displacement headspace under shear action.
Further, above-mentioned frame is provided with display system, power supply, pressurized system, and top is followed successively by for showing
The loading speed governing table of core sample shear rate, for showing the liquid meter of fluid flow in water tank, for showing gas tank
Gas flow meter, loading power, liquid pumping source and the general supply of interior gas flow；Next it is inner-ring gas pressure table, water tank pressure
Power table and gas tank pressure gauge, in test by the reading of pressure gauge numerical value, can obtain corresponding water, atmospheric pressure, to determine
Water sealing condition；It is down ring pressure valve, water tank counterbalance valve and gas tank pressure regulator valve, the pressure size for regulating and controlling each part again；It is most lower
Face is to inject the confined pressure hand pump of confined pressure for core sample and the electrodynamic pump of certain pressure water is injected to water tank.
The test method of underground water seal cave depot rock mass water sealing condition test device of the present invention, it is characterised in that：The underground
The test device of water seal cave depot rock mass water sealing condition includes frame and the rock core fastener being located in frame, the rock core fastener
Top is connected with water tank by upper plug head, and the rock core fastener bottom is connected with gas tank, the water tank by lower end cap and set
Have a water filling port and upper discharge outlet, the electrodynamic pump that the water filling port connection is supplied water, the upper discharge outlet connect counterbalance valve to control, surely
Determine to be additionally provided with visual window on hydraulic pressure in case, the water tank；The gas tank is connected to liquid provided with four connectors, two of which connector
In the meter of position, to measure during experiment water level in gas tank, two other connector is respectively connected to lower discharge outlet and gas injection port, gas injection port
Gas pressure regulating valve, compressed air source unit are sequentially connected, lower discharge outlet is used to discharge inside water unnecessary in experimentation, the gas tank also
Pressure rod is embedded with, pressure rod connects the loading motor below gas tank by the screw rod that pressurizes, when implementing shearing force, loading electricity
Machine drives pressure rod make it that the core sample being located in rock core fastener body is cut part and occurs at the uniform velocity displacement；In the upper plug head
Provided with water passage, with joining water box and core sample, air-liquid body flow channel is provided with the lower end cap；Making step：
（1）Core sample makes and placed, and manufacturing specification is diameter of phi=100mm, height h=200mm cylindrical rock mass sample
（Crack can be contained at axis）, it is loaded into rock core fastener, and fixing device；
（2）Confined pressure is loaded, and confined pressure is applied using confined pressure hand pump（Preferably first carry out the confined pressure experiment of minimum level）, enclosed until predetermined
Pressure value simultaneously stablizes the value；
（3）Water pressure is loaded, and water source is connected into electrodynamic pump, and water pressure is applied using electrodynamic pump（Preferably first carry out the water of minimum level
Pressure test, and ensure confined pressure when water pressures at different levels are respectively less than experiment）, injected water into by water filling port in water tank, until pre-
After fixed hydraulic pressure value, pass through the stable hydraulic pressure of water tank counterbalance valve.
（4）Atmospheric pressure is loaded, and source of the gas is opened, gases at high pressure are changed into certain pressure-sustaining gas by source of the gas pressure regulator valve,
Gas injects gas tank, improves atmospheric pressure step by step afterwards, if the water sealing condition under test shear displacemant-confined pressure synergy,
Apply shearing force while applying atmospheric pressure, observing bubble by visual window emerges moment, records corresponding water pressure, air pressure
Power, tangential displacement, you can draw corresponding gas leakage critical condition.
Apparatus of the present invention can be used for the water sealing condition of test underground water seal cave depot rock mass, the advantage is that：
（1）Can be when testing rock mass water sealing condition, it is ensured that while gas-liquid is normally inputted, outside is in sealing in experimental rig
State.
（2）Different confined pressures, shear displacemant, crack geometric properties can be tested（Gap is wide, roughness, angle）To rock mass water seal
The influence of condition, and when can test Multiple factors coupling rock mass water sealing condition.
（3）Both pore water, crevice water can have been tested and sealed problem up for safekeeping, also can have been studied under confined pressure effect, shear displacemant-confined pressure
Problem is sealed up for safekeeping under synergy.
Reusability is high, and this experimental rig each several part is separate, can dismantle, clean after experiment, repeating profit
With.And integral replacing is not needed when instrument is damaged, as long as carrying out local replacement for the device of appropriate section, is subtracted
The maintenance cost of instrument is lacked.
Brief description of the drawings：
Fig. 1 is the main structure diagram of instrument of the present invention；
Fig. 2 is the side structure schematic view of instrument of the present invention；
Fig. 3 is the upper plug head upper surface figure of instrument of the present invention；
Fig. 4 is the lower end cap lower surface figure of instrument of the present invention；
In figure, 1, visual window, 2, water tank, 3, upper discharge outlet, 4, upper plug head, 5, pressurization bed course, 6, rock core fastener, 7, core examination
Sample, 8, lower end cap, 9, frame, 10, pressure rod, 11, liquid level gauge, 12, gas tank, 13, loading motor, 14, water filling port, 15, gas injection
Mouthful, 16, lower discharge outlet, 17, tangential force loading speed governing table, 18, liquid meter, 19, gas flow meter, 20, general supply, 21,
Loading power, liquid pumping source, 22, tank pressure table, 23, inner-ring gas pressure table, 24, air box pressure table, 25, gas tank pressure regulator valve,
26th, ring pressure valve, 27, water tank counterbalance valve, 28, confined pressure hand pump, 29, electrodynamic pump, 30, pressurization screw rod, 31, water passage, 32,
Air-liquid body flow channel, 33, arch dead slot.
Embodiment：
The present invention will be further described in detail with reference to the accompanying drawings and detailed description.
The test device of underground water seal cave depot rock mass water sealing condition of the present invention, including frame 9 and the core being located in frame 9
Clamper 6, the top of rock core fastener 6 is connected with water tank 2 by upper plug head 4, and the bottom of rock core fastener 6 passes through lower stifled
First 8 are connected with gas tank 12, and the water tank 2 is provided with water filling port 14 and upper discharge outlet 3（Voltage stabilizing discharge outlet）, the water filling port 14
The electrodynamic pump 29 supplied water is connected, the upper discharge outlet 3 connection counterbalance valve 27 is to control, hydraulic pressure in stable case, on the water tank also
Provided with visual window 1；The gas tank 12 is provided with four connectors, and two of which connector is connected in liquid level gauge 11, to measure examination
Water level in gas tank when testing, two other connector is respectively connected to lower discharge outlet 16 and gas injection port 15, and gas injection port 15 is sequentially connected gas
Body pressure regulator valve 25, compressed air source unit（Air pump）, lower discharge outlet 16 is used to discharge goes back inside water unnecessary in experimentation, the gas tank
Pressure rod 10 is embedded with, pressure rod 10 connects the loading motor 13 below gas tank by the screw rod 30 that pressurizes, and is implementing shearing force
When, loading motor 13 drives pressure rod 10 make it that the core sample 7 in rock core fastener body is cut part and occurs at the uniform velocity position
Move；Water passage 31 is provided with the upper plug head, with joining water box and core sample, air-liquid body stream is provided with the lower end cap
Dynamic passage 32.
Further, in order to reasonable in design, the size of above-mentioned water tank cavity part is diameter of phi=270mm, height h=
80mm, its bottom arranged on left and right sides connects the water filling port 14 and upper discharge outlet 3 respectively；The visual window cylinder is divided into two parts,
A part is top visual window, and another part is side visual window；In process of the test, determine that gas passes through by each visual window
Rock sample crack and at the time of emerged in upper plug head passage, to judge to keep the critical of water seal effect under a certain gas pressure
State.
Further, Φ=100mm, h=200mm core sample, in core examination are placed in above-mentioned rock core fastener
Connector below pressurization bed course 5, rock core fastener is set to be connected with confined pressure hand pump 28 around sample, by shaking 28 pairs of hand pump
Rock core fastener internal pressurization bed course water filling, confined pressure is applied to reach to sample.
Further, above-mentioned upper and lower plug is fixed on the both ends of the surface of clamper with plug flange respectively, is connected with box flange
Water receiving case, gas tank, to prevent rock mass sample from upper and lower displacement occurring at the trial, keep the seal of experimentation Instrumental.
Further, the arch dead slot that a height is 15mm is set on above-mentioned upper plug head with core sample connecting portion
33, with to local core sample displacement headspace under shear action.Lower end cap is except a length of 90mm, a width of 12mm air-liquid
Body flow channel 32, in addition to the pressure rod reserved for pressure rod are vented passage, and its cross section size and pressure rod cross section are big
It is small basically identical.
Further, above-mentioned frame is provided with display system, power supply, pressurized system, and top is followed successively by for showing core
The loading speed governing table 17 of sample shear rate, the liquid meter 18 for showing fluid flow in water tank, for showing gas tank
Gas flow meter 19, loading power, liquid pumping source 21 and the general supply 20 of interior gas flow；Next it is inner-ring gas pressure table
23rd, tank pressure table 22 and gas tank pressure gauge 24, in test by the reading of pressure gauge numerical value, can obtain corresponding water, gas
Pressure, to determine water sealing condition；It is again down ring pressure valve 26, water tank counterbalance valve 27 and gas tank pressure regulator valve 25, for regulating and controlling respectively
The pressure size of part；Bottom is to inject the confined pressure hand pump 28 of confined pressure for core sample and inject certain pressure water to water tank
Electrodynamic pump 29.
The test method of underground water seal cave depot rock mass water sealing condition test device of the present invention, the underground water seal cave depot rock mass
The test device of water sealing condition includes frame 9 and the rock core fastener 6 being located in frame 9, and the top of rock core fastener 6 passes through
Upper plug head 4 is connected with water tank 2, and the bottom of rock core fastener 6 is connected with gas tank 12 by lower end cap 8, and the water tank 2 is provided with
Water filling port 14 and upper discharge outlet 3（Voltage stabilizing discharge outlet）, the electrodynamic pump 29 that the connection of water filling port 14 is supplied water, the upper discharge outlet
3 connection counterbalance valves 27 are additionally provided with visual window 1 to control, stablize on hydraulic pressure in case, the water tank；The gas tank 12 is provided with four companies
Interface, two of which connector is connected in liquid level gauge 11, to measure during experiment water level in gas tank, two other connector difference
The lower discharge outlet 16 of access and gas injection port 15, gas injection port 15 are sequentially connected gas pressure regulating valve 25, compressed air source unit（Air pump）, lower discharge outlet
16 are used to discharge also to be embedded with pressure rod 10 inside water unnecessary in experimentation, the gas tank, and pressure rod 10 passes through the screw rod that pressurizes
Loading motor 13 below 30 connection gas tanks, when implementing shearing force, loading motor 13 drives pressure rod 10 to be located at
Core sample 7 in rock core fastener body is cut part and occurs at the uniform velocity displacement；Water passage 31 is provided with the upper plug head, with even
Air-liquid body flow channel 32 is provided with water flowing case and core sample, the lower end cap；Operating procedure：
（1）Core sample makes and placed, and manufacturing specification is diameter of phi=100mm, height h=200mm cylindrical rock mass sample
（Crack can be contained at axis）, it is loaded into rock core fastener, and fixing device；
（2）Confined pressure is loaded, and confined pressure is applied using confined pressure hand pump（Preferably first carry out the confined pressure experiment of minimum level）, enclosed until predetermined
Pressure value simultaneously stablizes the value；
（3）Water pressure is loaded, and water source is connected into electrodynamic pump, and water pressure is applied using electrodynamic pump（Preferably first carry out the water of minimum level
Pressure test, and ensure confined pressure when water pressures at different levels are respectively less than experiment）, injected water into by water filling port in water tank, until pre-
After fixed hydraulic pressure value, pass through the stable hydraulic pressure of water tank counterbalance valve.
（4）Atmospheric pressure is loaded, and source of the gas is opened, gases at high pressure are changed into certain pressure-sustaining gas by source of the gas pressure regulator valve,
Gas injects gas tank, improves atmospheric pressure step by step afterwards, if the water sealing condition under test shear displacemant-confined pressure synergy,
Apply shearing force while applying atmospheric pressure, observing bubble by visual window emerges moment, records corresponding water pressure, air pressure
Power, tangential displacement, you can draw corresponding gas leakage critical condition.
Apparatus of the present invention can be used for the water sealing condition of test underground water seal cave depot rock mass, the advantage is that：
（1）Can be when testing rock mass water sealing condition, it is ensured that while gas-liquid is normally inputted, outside is in sealing in experimental rig
State.
（2）Different confined pressures, shear displacemant, crack geometric properties can be tested（Gap is wide, roughness, angle）To rock mass water seal
The influence of condition, and when can test Multiple factors coupling rock mass water sealing condition.
（3）Both pore water, crevice water can have been tested and sealed problem up for safekeeping, also can have been studied under confined pressure effect, shear displacemant-confined pressure
Problem is sealed up for safekeeping under synergy.
Reusability is high, and this experimental rig each several part is separate, can dismantle, clean after experiment, repeating profit
With.And integral replacing is not needed when instrument is damaged, as long as carrying out local replacement for the device of appropriate section, is subtracted
The maintenance cost of instrument is lacked.
The foregoing is only presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with
Modification, should all belong to the covering scope of the present invention.
Claims (7)
1. a kind of test device of underground water seal cave depot rock mass water sealing condition, it is characterised in that：Including frame and being located in frame
Rock core fastener, the rock core fastener top is connected with water tank by upper plug head, and the rock core fastener bottom is under
Plug is connected with gas tank, and the water tank is provided with water filling port and upper discharge outlet, and the electrodynamic pump that the water filling port connection is supplied water is described
Upper discharge outlet connects counterbalance valve and is additionally provided with visual window on hydraulic pressure, the water tank to control, in stable case；The gas tank is provided with four
Connector, two of which connector is connected in liquid level gauge, to measure during experiment water level in gas tank, two other connector difference
The lower discharge outlet of access and gas injection port, gas injection port are sequentially connected gas pressure regulating valve, compressed air source unit, and lower discharge outlet was tested for discharge
Pressure rod is also embedded with inside unnecessary water in journey, the gas tank, pressure rod connects the loading electricity below gas tank by the screw rod that pressurizes
Machine, when implementing shearing force, loading motor drives pressure rod make it that the core sample being located in rock core fastener body is cut
At the uniform velocity displacement occurs for part；Water passage is provided with the upper plug head, with joining water box and core sample, is set in the lower end cap
There is air-liquid body flow channel.
2. the test device of underground water seal cave depot rock mass water sealing condition according to claim 1, it is characterised in that：The water
The size of box cavity part be diameter of phi=270mm, height h=80mm, its bottom arranged on left and right sides connect respectively the water filling port and
Upper discharge outlet；The visual window cylinder is divided into two parts, and a part is top visual window, and another part is side visual window；Examination
During testing, at the time of determining that the gas for flowing through rock sample crack is emerged in upper plug head passage by each visual window, to sentence
Break and the critical condition of water seal effect is kept under a certain gas pressure.
3. the test device of underground water seal cave depot rock mass water sealing condition according to claim 1, it is characterised in that：The rock
Φ=100mm is placed in core holder, h=200mm core sample sets pressurization bed course, core around the core sample
Connector is connected with confined pressure hand pump below clamper, by shaking hand pump to rock core fastener internal pressurization bed course water filling,
Confined pressure is applied to sample to reach.
4. the test device of underground water seal cave depot rock mass water sealing condition according to claim 1, it is characterised in that：It is described
Upper and lower plug is fixed on the both ends of the surface of clamper with plug flange respectively, water tank, gas tank is connected with box flange, to prevent rock
Upper and lower displacement occurs at the trial for body sample, keeps the seal of experimentation Instrumental.
5. the test device of underground water seal cave depot rock mass water sealing condition according to claim 1, it is characterised in that：On described
The arch dead slot that one height is 15mm is set on plug with core sample connecting portion, to be tried to local core under shear action
Sample displacement headspace.
6. the test device of underground water seal cave depot rock mass water sealing condition according to claim 1, it is characterised in that：The machine
Frame is provided with display system, power supply, pressurized system, and the loading that top is followed successively by for showing core sample shear rate is adjusted
Fast table, for show the liquid meter of fluid flow in water tank, for show the gas flow meter of gas flow in gas tank, plus
Carry power supply, liquid pumping source and general supply；Next it is inner-ring gas pressure table, tank pressure table and gas tank pressure gauge, in test
By the reading of pressure gauge numerical value, corresponding water, atmospheric pressure can be obtained, to determine water sealing condition；It is down ring pressure valve, water again
Case counterbalance valve and gas tank pressure regulator valve, the pressure size for regulating and controlling each part；Bottom is to inject enclosing for confined pressure for core sample
Press hand pump and the electrodynamic pump of certain pressure water is injected to water tank.
7. a kind of test method of underground water seal cave depot rock mass water sealing condition test device, it is characterised in that：The underground water seal
The test device of cave depot rock mass water sealing condition includes frame and the rock core fastener being located in frame, the rock core fastener top
Water tank is connected with by upper plug head, the rock core fastener bottom is connected with gas tank by lower end cap, and the water tank is provided with note
The mouth of a river and upper discharge outlet, the electrodynamic pump that the water filling port connection is supplied water, the upper discharge outlet connection counterbalance valve is to control, stable case
Visual window is additionally provided with interior hydraulic pressure, the water tank；The gas tank is connected to liquid level gauge provided with four connectors, two of which connector
In, to measure during experiment water level in gas tank, two other connector is respectively connected to lower discharge outlet and gas injection port, and gas injection port is successively
Gas pressure regulating valve, compressed air source unit are connected, lower discharge outlet is used to discharge also to be embedded with inside water unnecessary in experimentation, the gas tank
Pressure rod, pressure rod connects the loading motor below gas tank by the screw rod that pressurizes, when implementing shearing force, loading motor band
Dynamic pressure rod make it that the core sample being located in rock core fastener body is cut part and occurs at the uniform velocity displacement；It is provided with the upper plug head
Water passage, with joining water box and core sample, air-liquid body flow channel is provided with the lower end cap；Operating procedure：
（1）Core sample makes and placed, and manufacturing specification is diameter of phi=100mm, height h=200mm cylindrical rock mass sample
（Crack can be contained at axis）, it is loaded into rock core fastener, and fixing device；
（2）Confined pressure is loaded, and confined pressure is applied using confined pressure hand pump（Preferably first carry out the confined pressure experiment of minimum level）, enclosed until predetermined
Pressure value simultaneously stablizes the value；
（3）Water pressure is loaded, and water source is connected into electrodynamic pump, and water pressure is applied using electrodynamic pump（Preferably first carry out the water of minimum level
Pressure test, and ensure confined pressure when water pressures at different levels are respectively less than experiment）, injected water into by water filling port in water tank, until pre-
After fixed hydraulic pressure value, pass through the stable hydraulic pressure of water tank counterbalance valve；
（4）Atmospheric pressure is loaded, and source of the gas is opened, gases at high pressure are changed into certain pressure-sustaining gas by source of the gas pressure regulator valve, gas
Gas tank is injected, atmospheric pressure is improved step by step afterwards, if the water sealing condition under test shear displacemant-confined pressure synergy, applied
Apply shearing force while atmospheric pressure, observing bubble by visual window emerges moment, records corresponding water pressure, atmospheric pressure, cuts
Shear force, you can draw corresponding gas leakage critical condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710539307.2A CN107192653B (en) | 2017-07-04 | 2017-07-04 | The test device and test method of underground water seal cave depot rock mass water sealing condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710539307.2A CN107192653B (en) | 2017-07-04 | 2017-07-04 | The test device and test method of underground water seal cave depot rock mass water sealing condition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107192653A true CN107192653A (en) | 2017-09-22 |
| CN107192653B CN107192653B (en) | 2019-09-13 |
Family
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| CN108195731A (en) * | 2017-11-24 | 2018-06-22 | 浙江海洋大学 | The one-dimensional injection-recovery apparatus of testing large underground water seal pit hole library reinjected water water quality index |
| CN108196019A (en) * | 2017-12-15 | 2018-06-22 | 浙江海洋大学 | A kind of three-dimensional injection-recovery apparatus for testing underground water seal pit hole library reinjected water water quality index |
| CN109374504A (en) * | 2018-11-19 | 2019-02-22 | 浙江海洋大学 | A kind of test method of dynamic monitoring Large Underground water seal pit hole library water curtain moisturizing effect |
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| CN108196019B (en) * | 2017-12-15 | 2020-10-02 | 浙江海洋大学 | Three-dimensional injection-production device for testing quality index of reinjection water of underground water-sealed cave depot |
| CN109374504A (en) * | 2018-11-19 | 2019-02-22 | 浙江海洋大学 | A kind of test method of dynamic monitoring Large Underground water seal pit hole library water curtain moisturizing effect |
| CN109374504B (en) * | 2018-11-19 | 2020-11-13 | 浙江海洋大学 | Test method for dynamically monitoring water supplementing effect of water curtain of large-scale underground water-sealed stone cave depot |
| CN110441217A (en) * | 2019-08-30 | 2019-11-12 | 舟山市博远科技开发有限公司 | A kind of permeation unit of concrete test block and analyzer with the permeation unit |
| CN110441217B (en) * | 2019-08-30 | 2023-06-06 | 舟山市博远科技开发有限公司 | Penetration unit of concrete test block and tester with penetration unit |
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