CN107356506A - A kind of rock joint seepage flow Loading Control System and its control method - Google Patents
A kind of rock joint seepage flow Loading Control System and its control method Download PDFInfo
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- CN107356506A CN107356506A CN201710506931.2A CN201710506931A CN107356506A CN 107356506 A CN107356506 A CN 107356506A CN 201710506931 A CN201710506931 A CN 201710506931A CN 107356506 A CN107356506 A CN 107356506A
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- seepage flow
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- 239000011435 rock Substances 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 190
- 230000001105 regulatory effect Effects 0.000 claims abstract description 9
- 230000003068 static effect Effects 0.000 claims description 12
- 230000001276 controlling effect Effects 0.000 claims description 4
- 230000008520 organization Effects 0.000 claims description 4
- 239000004575 stone Substances 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 8
- 238000002474 experimental method Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 238000013519 translation Methods 0.000 description 2
- 102000010637 Aquaporins Human genes 0.000 description 1
- 108010063290 Aquaporins Proteins 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
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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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- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
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- Earth Drilling (AREA)
Abstract
The present invention relates to a kind of rock joint seepage flow Loading Control System and its control method, including entery and delivery port EDC controllers, entery and delivery port hydraulic pressure regulatory component, entery and delivery port water tank, it is communicated to the entery and delivery port aqueduct of rock joint sample, entery and delivery port water tank is provided with the entery and delivery port hydraulic pressure sensor for being connected to entery and delivery port EDC controllers, and entery and delivery port EDC controllers are connected to computer and the water-carrying capacity and hydraulic pressure of entery and delivery port are controlled according to computer instruction.Compared with prior art, the present invention can not only provide normal the boundary condition of seepage flow and ordinary water the pressure boundary condition that prior art can provide, and the normal seepage flow pressure difference boundary condition that prior art can not provide can be provided, the test type of rock joint seepage tests is greatly enriched, and servo-control hydraulic Loading Control System precision is high, various the boundary condition of seepage flow switchings are easy.
Description
Technical field
The present invention relates to rock seepage tests technology, and in particular to a kind of rock joint seepage flow Loading Control System and its control
Method processed.
Background technology
Rock mass is made up of sillar and joint (structural plane) in nature, and the influence of the presence at joint to Rock Nature is notable
, the infiltration coefficient at joint is much larger than rock basic unit in rock mass, while the deformation modulus at joint is much smaller than rock basic unit, joint
In the presence of the intensity for not only weakening rock mass, and the passage of flowing is provided for current, induce various disasters.Therefore, in rock mass
The interaction of joint and underground water often directly decides the stabilization and safety of engineering structure.
Laboratory test is to carry out the joint most direct means that seepage characteristic is studied under different stress.Permeate border
Condition mainly has：(1) normal flow the boundary condition of seepage flow, i.e., the water-carrying capacity that joint plane is flowed through during whole experiment are constant
Value；(2) ordinary water pressure boundary condition, i.e., the hydraulic pressure of water inlet is steady state value during whole experiment；(3) normal seepage flow pressure difference border
Condition, i.e., the osmotic pressure of entery and delivery port is steady state value during whole experiment.In the prior art, mainly intaking
Mouth provides infiltration hydraulic pressure using high pressure tank or plunger pump for joint seepage tests, but utilizes high pressure tank to apply and permeate
Hydraulic pressure is only capable of providing ordinary water pressure boundary condition, and hydraulic pressure is unstable, and control accuracy is poor；Permanent current can only be also provided using plunger pump
Boundary condition and ordinary water pressure boundary condition are measured, normal seepage flow pressure difference boundary condition can not be provided.
Chinese patent 200710040457.5 discloses a kind of rock joint shearing-seepage coupling test system, including one
Shear box, a test force loading and displacement measuring device, an opening width measurement apparatus and a computer, the shear box have into
Aquaporin and an exhalant canal, in addition to a seepage detector, the seepage detector include a water feed apparatus and a water outlet
Flow measurement device, the water inlet of the intake tunnel of the water feed apparatus UNICOM shear box, the shearing of water flow measurement apparatus UNICOM
The delivery port of the exhalant canal of box, but system control is inaccurate, and normal seepage flow pressure difference boundary condition can not be provided.
The content of the invention
The purpose of the present invention be exactly provided to solve the above problems a kind of rock joint seepage flow Loading Control System and
Its control method.
The purpose of the present invention is achieved through the following technical solutions：
A kind of rock joint seepage flow Loading Control System, including：
Water inlet Water hydraulic static pressure loading controlling organization：Enter including water inlet EDC controllers, with what water inlet EDC controllers were connected
Mouth of a river hydraulic pressure regulatory component, water inlet water tank, described water inlet water tank output end are communicated with to rock joint sample
Water inlet aqueduct, water inlet water tank, which is provided with, is connected to the water inlet hydraulic pressure sensors of water inlet EDC controllers；
Delivery port Water hydraulic static pressure loading controlling organization：Go out including delivery port EDC controllers, with what delivery port EDC controllers were connected
Mouth of a river hydraulic pressure regulatory component, delivery port water tank, described delivery port water tank output end are communicated with to rock joint sample
Delivery port aqueduct, delivery port water tank, which is provided with, is connected to the delivery port hydraulic pressure sensors of delivery port EDC controllers；
Described water inlet EDC controllers and delivery port EDC controllers is connected to computer and referred to according to computer
The water-carrying capacity and hydraulic pressure of order control water inlet and delivery port.
Further, described water inlet hydraulic pressure regulatory component includes water inlet servomotor, located at water inlet servo electricity
The water inlet reductor of machine output end, the water inlet ball-screw being connected with water inlet output end of reducer and water inlet ball
Leading screw connection water inlet piston rod and the water inlet piston located at water inlet piston rod end, described water inlet piston with
Water inlet water tank is connected.
Further, described water inlet reductor is connected with water inlet ball-screw by gear and gear V belt translation
Connect, described water inlet ball-screw is supported by water inlet Water hydraulic static pressure loading framework.
Further, described delivery port hydraulic pressure regulatory component includes delivery port servomotor, located at delivery port servo electricity
The delivery port reductor of machine output end, the delivery port ball-screw being connected with delivery port output end of reducer and delivery port ball
Leading screw connection delivery port piston rod and the delivery port piston located at delivery port piston rod end, described delivery port piston with
Delivery port water tank is connected.
Further, described delivery port reductor is connected with delivery port ball-screw by gear and gear V belt translation
Connect, described delivery port ball-screw is supported by delivery port Water hydraulic static pressure loading framework.
Further, described delivery port aqueduct is provided with the first outlet valve, in parallel with the first outlet valve to set
There is delivery port aqueduct branch road, the delivery port aqueduct branch road is provided with the second outlet valve, electronic balance and overflow valve,
Described electronic balance is used for measuring the quality of the water of outflow, so as to obtain the flow of water.
The control method of described rock joint seepage flow Loading Control System, specifically,
(a) the second outlet valve is opened, the first outlet valve is closed, is controlled using computer by water inlet EDC
Device control water inlet water-carrying capacity keeps constant, realizes that normal flow the boundary condition of seepage flow controls；
(b) the second outlet valve is opened, the first outlet valve is closed, with the feedback signal of water inlet hydraulic pressure sensor
Compared with target hydraulic pressure, control water inlet hydraulic pressure to keep constant by water inlet EDC controllers using computer, realize ordinary water
Press the boundary condition of seepage flow control；
(c) the first outlet valve and overflow valve are opened, closes the second outlet valve, with water inlet hydraulic pressure sensor and
The feedback signal of delivery port hydraulic pressure sensor compares with respective target hydraulic pressure, passes through water inlet EDC controllers using computer
Control water inlet hydraulic pressure to keep constant, and control delivery port hydraulic pressure to keep permanent by delivery port EDC controllers using computer
It is fixed, realize normal seepage flow pressure difference Boundary Condition Control.
During the system specific works, water inlet EDC controllers receive computer instruction control water inlet servomotor and rotated,
Water inlet servomotor drives water inlet reductor, and water inlet reductor drives ball-screw by gear belt transmission system, this
When be connected with ball-screw water inlet piston rod extruding water inlet water tank in water produce needed for water inlet hydraulic pressure and stream
Amount；Delivery port EDC controllers receive computer instruction control delivery port servomotor and rotated, and delivery port servomotor drives water outlet
Mouth reductor, delivery port reductor drive ball-screw, the water outlet being now connected with ball-screw by gear belt transmission system
Mouth piston rod is mobile in delivery port water tank to produce required delivery port hydraulic pressure and flow.
The present invention can be that rock joint provides normal flow the boundary condition of seepage flow, ordinary water pressure under different stress boundary conditions
Boundary condition, normal seepage flow pressure difference boundary condition, to simulate section of the joint under different stress boundary conditions and the boundary condition of seepage flow
Reason face seepage characteristic, the test type of rock joint seepage tests is greatly enriched, and due to carrying out servo using ball screw
Control, stable water pressure, control accuracy is high, and various the boundary condition of seepage flow switchings are easy.
Brief description of the drawings
Fig. 1 is the structural representation of rock joint seepage flow Loading Control System of the present invention；
In figure：1- delivery port EDC controllers；2- delivery port servomotors；3- delivery port reductors；4- delivery port gears
One；5- delivery ports gear two；6- delivery port gear bands；7- delivery port ball-screws；8- delivery port Water hydraulic static pressure loading frameworks；9- water outlets
Mouth piston rod；10- delivery port pistons；11- delivery port water tanks；12- delivery port hydraulic pressure sensors；13- overflow valves；14- first
Outlet valve；The outlet valves of 15- second；16- delivery port aqueducts；17- electronic balances；18- joint samples；19- is intake
Mouth aqueduct；20- water inlet water tanks；21- water inlet hydraulic pressure sensors；22- water inlet pistons；23- water inlet piston rods；
24- water inlet Water hydraulic static pressure loading frameworks；25- water inlet ball-screws；26- water inlets gear two；27- water inlets gear one；28- enters
Mouth of a river gear band；29- water inlet reductors；30- water inlet servomotors；31- water inlet EDC controllers；32- computers.
Embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
A kind of rock joint seepage flow Loading Control System, such as Fig. 1, including water inlet EDC controllers 31, water inlet servo electricity
Machine 30, water inlet reductor 29, water inlet gear band 28, water inlet gear 1, water inlet gear 2 26, water inlet ball wire
Thick stick 25, water inlet Water hydraulic static pressure loading framework 24, water inlet piston rod 23, water inlet piston 22, water inlet hydraulic pressure sensor 21, water inlet
Mouth water tank 20, water inlet aqueduct 19；Delivery port EDC controllers 1, delivery port servomotor 2, delivery port reductor 3, water outlet
Ability to speak wheel 1, delivery port gear 25, delivery port gear band 6, delivery port ball-screw 7, delivery port Water hydraulic static pressure loading framework 8, go out
Mouth of a river piston rod 9, delivery port piston 10, delivery port water tank 11, delivery port hydraulic pressure sensor 12, overflow valve 13, the first water outlet
Mouth valve 14, the second outlet valve 15, delivery port aqueduct 16.
Water inlet EDC controllers 31 control water inlet servomotor 30 to rotate by receiving the instruction of computer 32, enter
Mouth of a river servomotor 30 drives coupled water inlet reductor 29, the water inlet gear one being connected with water inlet reductor 29
27 are driven drive water inlet gear 2 26 by water inlet gear band 28, and the rotation of water inlet gear 2 26 causes water inlet ball
The occurred level displacement of leading screw 25, and then the piston that the water inlet piston rod 23 being connected with water inlet ball-screw 25 passes through its end
Water in 22 extruding water inlet water tanks produces required water inlet hydraulic pressure and flow.
Delivery port EDC controllers 1 control delivery port servomotor 2 to rotate by receiving the instruction of computer 32, water outlet
Mouth servomotor 2 drives coupled delivery port reductor 3, and the delivery port gear 1 being connected with delivery port reductor 3 passes through
The transmission of delivery port gear band 6 drives delivery port gear 2 25, and the rotation of delivery port gear 25 causes delivery port ball-screw 7 to send out
Raw horizontal displacement, and then the delivery port piston rod 9 being connected with delivery port ball-screw 7 extrudes water outlet by the piston 10 of its end
Water in mouth water tank 11 produces required delivery port hydraulic pressure and flow.
The second outlet valve 15 is opened during experiment, closes the first outlet valve 14, it is logical using computer 32
Cross water inlet EDC controllers 31 and control water inlet servomotor 30 with constant rotational speed, can be to realize normal flow seepage flow
Boundary condition.
The second outlet valve 15 is opened during experiment, closes the first outlet valve 14, is passed with water inlet hydraulic pressure
The feedback signal of sensor 21 compares with target hydraulic pressure, controls water inlet to watch by water inlet EDC controllers 31 using computer 1
Take motor 30 and change velocity of rotation in real time, can with realize ordinary water press the boundary condition of seepage flow.
The first outlet valve 14 and overflow valve 13 are opened during experiment, the second outlet valve 15 is closed, to enter
The feedback signal of mouth of a river hydraulic pressure sensor 21 and delivery port hydraulic pressure sensor 12 compares with respective target hydraulic pressure, utilizes computer
1 controls water inlet servomotor 30 to change velocity of rotation in real time by water inlet EDC controllers 31, is controlled by delivery port EDC
Device 1 controls water inlet servomotor 2 to change velocity of rotation in real time, can realize normal seepage flow pressure difference the boundary condition of seepage flow.
Claims (7)
- A kind of 1. rock joint seepage flow Loading Control System, it is characterised in that including：Water inlet Water hydraulic static pressure loading controlling organization：It is connected including water inlet EDC controllers (31), with water inlet EDC controllers (31) Water inlet hydraulic pressure regulatory component, water inlet water tank (20), described water inlet water tank (20) output end be communicated with to The water inlet aqueduct (19) of rock joint sample (18), water inlet water tank (20) are provided with and are connected to water inlet EDC controllers (31) water inlet hydraulic pressure sensor (21)；Delivery port Water hydraulic static pressure loading controlling organization：It is connected including delivery port EDC controllers (1), with delivery port EDC controllers (1) Delivery port hydraulic pressure regulatory component, delivery port water tank (11), described delivery port water tank (11) output end are communicated with to rock The delivery port aqueduct (16) of stone joint samples (18), delivery port water tank (11) are provided with and are connected to delivery port EDC controllers (1) Delivery port hydraulic pressure sensor (12)；Described water inlet EDC controllers (31) and delivery port EDC controllers (1) is connected to computer (32) and according to meter The water-carrying capacity and hydraulic pressure of calculation machine (32) instruction control water inlet and delivery port.
- A kind of 2. rock joint seepage flow Loading Control System according to claim 1, it is characterised in that described water inlet Hydraulic pressure regulatory component includes water inlet servomotor (30), the water inlet reductor located at water inlet servomotor (30) output end (29) the water inlet ball-screw (25) and water inlet ball-screw (25), being connected with water inlet reductor (29) output end are even The water inlet piston rod (23) and the water inlet piston (22) located at water inlet piston rod (23) end connect, described water inlet Piston (22) is connected with water inlet water tank (20).
- A kind of 3. rock joint seepage flow Loading Control System according to claim 2, it is characterised in that described water inlet Reductor (29) is connected with water inlet ball-screw (25) by gear and gear band, described water inlet ball-screw (25) supported by water inlet Water hydraulic static pressure loading framework (24).
- A kind of 4. rock joint seepage flow Loading Control System according to claim 1, it is characterised in that described delivery port Hydraulic pressure regulatory component includes delivery port servomotor (2), the delivery port reductor located at delivery port servomotor (2) output end (3) the delivery port ball-screw (7) that, is connected with delivery port reductor (3) output end, it is connected with delivery port ball-screw (7) Delivery port piston rod (9) and the delivery port piston (10) located at delivery port piston rod (9) end, described delivery port piston (10) it is connected with delivery port water tank (11).
- A kind of 5. rock joint seepage flow Loading Control System according to claim 4, it is characterised in that described delivery port Reductor (3) is connected with delivery port ball-screw (7) by gear and gear band, described delivery port ball-screw (7) supported by delivery port Water hydraulic static pressure loading framework (8).
- A kind of 6. rock joint seepage flow Loading Control System according to claim 1, it is characterised in that described delivery port Aqueduct (16) is provided with the first outlet valve (14), in parallel with the first outlet valve (14) to be provided with delivery port aqueduct branch Road, the delivery port aqueduct branch road are provided with the second outlet valve (15), electronic balance (17) and overflow valve (13).
- 7. a kind of control method of rock joint seepage flow Loading Control System as claimed in claim 6, it is characterised in that specific For,(a) the second outlet valve (15) is opened, the first outlet valve (14) is closed, passes through water inlet using computer (32) EDC controllers (31) control water inlet water-carrying capacity keeps constant, realizes that normal flow the boundary condition of seepage flow controls；(b) the second outlet valve (15) is opened, the first outlet valve (14) is closed, with water inlet hydraulic pressure sensor (21) Feedback signal is compared with target hydraulic pressure, and water inlet hydraulic pressure is controlled by water inlet EDC controllers (31) using computer (32) Keep constant, realize ordinary water pressure the boundary condition of seepage flow control；(c) the first outlet valve (14) and overflow valve (13) are opened, the second outlet valve (15) is closed, with water inlet hydraulic pressure The feedback signal of sensor (21) and delivery port hydraulic pressure sensor (12) compares with respective target hydraulic pressure, utilizes computer (32) Control water inlet hydraulic pressure to keep constant by water inlet EDC controllers (31), and pass through delivery port EDC using computer (32) Controller (1) control delivery port hydraulic pressure keeps constant, realizes normal seepage flow pressure difference Boundary Condition Control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710506931.2A CN107356506A (en) | 2017-06-28 | 2017-06-28 | A kind of rock joint seepage flow Loading Control System and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710506931.2A CN107356506A (en) | 2017-06-28 | 2017-06-28 | A kind of rock joint seepage flow Loading Control System and its control method |
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| Publication Number | Publication Date |
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| CN107356506A true CN107356506A (en) | 2017-11-17 |
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|---|---|---|---|
| CN201710506931.2A Pending CN107356506A (en) | 2017-06-28 | 2017-06-28 | A kind of rock joint seepage flow Loading Control System and its control method |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102253183A (en) * | 2011-06-28 | 2011-11-23 | 山东科技大学 | Shear-seepage coupling test system for rock cracks under action of confining pressure |
| CN105890971A (en) * | 2014-10-09 | 2016-08-24 | 中国科学院地质与地球物理研究所 | Rock fracture seepage continuous servo liquid feeding device |
| CN106124343A (en) * | 2016-08-25 | 2016-11-16 | 绍兴文理学院 | The pilot system of THMC coupling during consideration rock joint shear |
-
2017
- 2017-06-28 CN CN201710506931.2A patent/CN107356506A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102253183A (en) * | 2011-06-28 | 2011-11-23 | 山东科技大学 | Shear-seepage coupling test system for rock cracks under action of confining pressure |
| CN105890971A (en) * | 2014-10-09 | 2016-08-24 | 中国科学院地质与地球物理研究所 | Rock fracture seepage continuous servo liquid feeding device |
| CN106124343A (en) * | 2016-08-25 | 2016-11-16 | 绍兴文理学院 | The pilot system of THMC coupling during consideration rock joint shear |
Non-Patent Citations (5)
| Title |
|---|
| H. PARK 等: "Development of coupled shear-flow-visualization apparatus and data analysis", 《INTERNATIONAL JOURNAL OF ROCK MECHANICS & MINING SCIENCES》 * |
| T. ESAKI 等: "Development of a shear-flow test apparatus and determination of coupled properties for a single rock joint", 《INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES》 * |
| 夏才初 等: "岩石节理剪切-渗流耦合试验系统的研制", 《岩石力学与工程学报》 * |
| 王刚 等: "新型数控岩石节理剪切渗流试验台的设计与应用", 《岩土力学》 * |
| 蒋宇静 等: "岩石节理剪切渗流耦合试验及分析", 《岩石力学与工程学报》 * |
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Application publication date: 20171117 |