CN109507085A - Simulate the true triaxial experimental provision and its method of the multidirectional seepage flow of earth rock material - Google Patents
Simulate the true triaxial experimental provision and its method of the multidirectional seepage flow of earth rock material Download PDFInfo
- Publication number
- CN109507085A CN109507085A CN201811632577.9A CN201811632577A CN109507085A CN 109507085 A CN109507085 A CN 109507085A CN 201811632577 A CN201811632577 A CN 201811632577A CN 109507085 A CN109507085 A CN 109507085A
- Authority
- CN
- China
- Prior art keywords
- steel plate
- flow
- rock material
- mandarin
- earth rock
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
-
- 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
- G01N15/0806—Details, e.g. sample holders, mounting samples for testing
Abstract
The true triaxial experimental provision and its method of the multidirectional seepage flow of earth rock material are simulated, including water tank, model casing, pressure apparatus, particle collection device, model casing are divided into external box of microvave and internal cavities；Top steel plate operating platform is equipped with top blind flange；Remaining five face of external box of microvave are made by steel plate, and a part is movable steel plate in left, rear, bottom surface steel plate；Fixation steel plate and movable steel plate constitute external box of microvave under reset condition；Model casing internal cavities are located at external box of microvave lower left corner front, and empty room is generated inside model casing when movable steel plate is pushed into when box house reaches maximum pushing position；Top particles collection chamber is equipped with above top blind flange；Every group of hydraulic cylinder corresponds to a set of counter-force bracket in pressure apparatus, and counter-force bracket is connect by counter-force floor and connecting rod with oil cylinder.The present invention can effectively simulate the seepage flow situation under complex stress condition in earth rock material, realize the load of three direction difference stress stabilities and be precisely controlled, implement to carry out a variety of percolation path Seepage Experiments.
Description
Technical field
The present invention relates to a kind of true triaxial experimental provisions and its method for simulating the multidirectional seepage flow of earth rock material, belong to experiment reason
Technologically field.Especially suitable for earth rock material seepage flow mechanism and the impervious measure experimental study of antiseepage, while applying also for big
The mechanism of type water conservancy project, earth structure and labyrinth seepage flow deformation and destruction under the conditions of great burying, high confining pressure, multidirectional seepage flow
Experimental study makes small to meet the impervious research with seepage failure of antiseepage of heavy construction than flow model in porous media test in ruler room and answer
With.
Background technique
National water conservancy census data shows that China is completed nearly 100,000 of reservoir dam for the first time, wherein 100m grades high soil
Masonry dam has reached hundreds of seats.With the migration of national resources Development control area center of gravity, a large amount of Midwest water resources gradually put on exploitation benefit
With schedule, a series of 200m grades or even 300m grade of extra-high earth and rockfill dams, which have been set up the project, to be investigated or puts into operation.Seepage flow is geotechnical engineering neck
One of the three major issues of domain earth and rockfill dam, including dam break be more than in world wide 2/3 dam safety issuess and all with seepage flow
Closely related, it is big that the high dam reservoir that Midwest water development is built often is located in remote and reservoir area capacity, once because seepage flow draws
It plays safety problem consequence not allowing to imagine, therefore the extra-high earth-rock dam seepage mechanism of reinforcement and seepage control measure research are extremely urgent.
At present both at home and abroad for the experimental provision of seepage flow based on three axis seepage instruments and sink seepage instrument, scale of model and ruler
It is very little smaller, it is difficult to restore earth and rockfill dam and fill out the live stage of dam material and match, directly affect the authenticity and reliability of seepage research；Together
When, existing seepage experimental apparatus is defined as greatly Mono direct percolation as mentioned above, and percolation path and its complexity in reservoir high dam, only
It conducts a research for single horizontal or vertical seepage flow and is obviously unable to satisfy Practical Project and theoretical research needs；Large-scale seepage flow
Experiment aspect, although part instrument can meet similarity criterion using live stage with carry out permeability test, stress loading mode with
Stress level still has larger gap with practical high dam, do not have experiment condition to the seepage characteristic of extra-high earth and rockfill dam carry out deeply,
Effectively research.
Summary of the invention
Based on considerations above, for comprehensive, reliably conducting a research to the seepage characteristic under high confining pressure and analyzing related antiseepage resists
Infiltration measure, makes up the deficiency of existing experimental facilities and device, and the present invention proposes true the three of a kind of simulation multidirectional seepage flow of earth rock material
Axis experimental provision and method, the apparatus and method can effectively restore the seepage flow situation under Various Complex stress in earth rock material,
Can realize stablizing load and being precisely controlled for three direction difference stress simultaneously, the device of the invention can implement development it is horizontal,
The Seepage Experiment of a variety of percolation paths such as vertical.
To achieve the above object, the present invention adopts the following technical scheme: true the three of a kind of simulation multidirectional seepage flow of earth rock material
Axis experimental provision and method, including water tank, model casing, pressure apparatus, particle collection device, which is characterized in that the mould
Molding box is divided into external box of microvave and internal cavities, and external box of microvave and internal cavities are all cuboidal configuration, and box top steel plate is outside
Extend and constitute a top steel plate operating platform, the top of top steel plate operating platform is equipped with top blind flange；The external box of microvave
Front (positive forward direction), back (just afterwards), the left side (left side), the right side (right side) and bottom surface (bottom) are all made by steel plate, and the left side is (left
Side), (just after), a part in bottom surface (bottom) steel plate are that movable steel plate (is referred to as " lateral activity steel plate ", " bottom below
Portion's activity steel plate ", " movable steel plate after just "), the activity steel plate can slide back and forth along plate face vertical direction；Remaining steel plate is
Fixation steel plate；Fixation steel plate and movable steel plate are in a plane and constitute external box of microvave under reset condition；It is the left side (left side), preceding
Face (positive forward direction) steel plate monolith is fixation steel plate；The model casing internal cavities are located at external box of microvave lower left corner front, work as activity
When steel plate is pushed into box house arrival maximum pushing position, movable steel plate, fixation steel plate and internal cavities side wall are i.e. in mould
An empty room is generated inside molding box；Top particles collection chamber is equipped with above the top blind flange；The pressure apparatus includes
Hydraulic cylinder and reaction frame, hydraulic cylinder is by left side hydraulic cylinder, just backward hydraulic cylinder, bottom hydraulic cylinder three parts group
At left side hydraulic cylinder amounts to one group of oil cylinder, and oil cylinder is contacted with the first steel plate of left side activity steel plate, and positive forward direction hydraulic cylinder is total
Two groups of oil cylinder of meter, oil cylinder is contacted with positive forward direction activity steel plate, and bottom hydraulic cylinder amounts to two groups of oil cylinder, oil cylinder and bottom movable steel
Plate contact；Every group of hydraulic cylinder corresponds to a set of counter-force bracket, and counter-force bracket is located on the outside of each oil cylinder, and counter-force bracket passes through counter-force rib
Plate and connecting rod are connect with oil cylinder.
The top steel plate operating platform is the platform that outer steel plate is constituted at the top of model casing, carries out forward play convenient for experiment
Real soil sample and experiment terminate open top blind flange after from top soil sample.
3 key effect of steel plate operating platform is to provide the face of rigidly fixing for top blind flange 4, top steel plate operating platform
3 be a rectangular planes, and four vertex offer the nut bore that matches with the fixed hydraulic nut 16 of top blind flange 4.If nothing
Top steel plate operating platform 3, model casing top only have 4 face side walls with 4 contact site of top blind flange, and fixation is difficult, and in reality
It tests when process especially three-dimensional loads and is difficult to provide effective rigid support.
More specifically, the water tank in the present invention is single chamber configuration, include a water level regulation container with
Force (forcing) pump, water tank are directly connected to via force (forcing) pump with external water source by water supply line, and water level regulation container is located at tank inner wall
Cabinet water level is controlled, cavity bottom center is provided with hole slot, and PVC water pipe one end connects the hole slot, other end link model case,
PVC water pipe is equipped with become a mandarin flow valve and the flowmeter that becomes a mandarin at water tank hole slot.
Model casing is divided into external box of microvave and internal cavities, and external box of microvave and internal cavities are all cuboidal configuration, external case
Body remaining five face in addition to top are all made by steel plate, and box top steel plate, which extends outwardly, constitutes a top steel plate operating platform,
Steel plate operating platform four corner positions in top offer hydraulic nut and correspond to screw hole.Left side, just rear, bottom steel plate a part are
Movable steel plate, movable steel plate can slide back and forth along plate face vertical direction, and rest part steel plate is fixation steel plate, consolidate under reset condition
Determine steel plate and movable steel plate is in a plane and constitutes external box of microvave；Right side, positive forward direction steel plate monolith are fixation steel plate, top
For a cover board, the size of the cover plate is identical as top steel plate operating platform, can be fitted in completely on the steel plate operating platform of top and flat
Four corner positions of platform, which correspond to, is provided with slot at screw hole, enable cover board to be fixed on top steel plate operation by hydraulic nut and put down
On platform.Model casing internal cavities are located at external box of microvave lower left corner front, reach maximum when movable steel plate is pushed into box house
When pushing position, movable steel plate, fixation steel plate and internal cavities side wall form an experiment inner cavity inside model casing；Right side
Fixation steel plate, top blind flange are double-layer structural, including the first steel plate and the second steel plate, and the first steel plate is on the outside of the second steel plate, the
One steel plate is bonded Chong Die completely with the second steel plate, and the first steel plate can be replaced, and the second steel plate is not replaceable.
The particle collection device goes out at stream to correspond to powder collection cavity with right side by top particles collection chamber and constitutes, top
Portion's powder collection cavity is a stainless steel rectangular parallelepiped structure, and lateral, genesis analysis has multicomponent every rigid plate, top particles in cavity
Collection chamber is fixed on the first steel plate of top blind flange, top particles collection chamber bottom, i.e., with the first steel plate of top blind flange
Slot is provided at contact surface, top particles collection chamber top surface offers larger apopore, is cased with delivery hose at apopore；It is right
Side powder collection cavity is a stainless steel rectangular parallelepiped structure, and lateral, genesis analysis has multicomponent every rigid plate, right side particle in cavity
Collection chamber is fixed on the outside of lateral the first steel plate of seepage mouth, lateral powder collection inside cavities, i.e., with right side fixation steel plate the
Slot is provided at one steel plate contact surface, right side collection chamber outside offers larger apopore, is cased with out at apopore
Water hose.
Rubber water-proof item is equipped between the left side, just rear, bottom activity steel plate and inner cavity side wall.
The left side activity steel plate is equipped with water inlet, and water inlet is connect by installation PVC water pipe with extraneous water supply device.
The bottom activity steel plate is equipped with water inlet, and water inlet is connect by installation PVC water pipe with extraneous water supply device.
Equipped with flow control valve and the flowmeter that becomes a mandarin of becoming a mandarin on the PVC water pipe of the left side activity steel plate water inlet.
Equipped with flow control valve and the flowmeter that becomes a mandarin of becoming a mandarin on the PVC water pipe of the bottom plate activity steel plate water inlet.
Several viewing windows are provided on the positive forward direction fixation steel plate, viewing window is sealed using organic glass.
Several pore slots are reserved on the positive forward direction fixation steel plate, sensor wire after placement sensor inside model casing
It can be picked out by hole slot.
There are several pores on first steel plate, there are several gross porositys on the second steel plate, each gross porosity the center point corresponding one
A pore.
The top particles collection chamber base channel pore size distribution, diameter and the second steel plate of top blind flange are completely the same.
The right side powder collection cavity base channel pore size distribution, diameter and to laterally secure the second steel plate of steel plate completely the same.
Equipped with stream flow valve out and stream flowmeter out on delivery hose at the top particles collection chamber.
Equipped with stream flow valve out and stream flowmeter out on delivery hose at the right side powder collection cavity.
The technical solution for completing second invention task of the application is the true triaxial of the above-mentioned multidirectional seepage flow of simulation earth rock material
Experimental provision application method, it is characterised in that use step as follows:
Step 1: determining experiment earth rock material type, selects and be inserted into first steel plate in corresponding pore aperture；
Step 2: all three groups of hydraulic cylinder strokes of reduction make all movable steel plates return to original state, i.e., movable steel plate
Same level is in fixation steel plate；
Step 3: opening top blind flange, and experiment ground material layering is packed into model casing external box of microvave；
Step 4: earth rock material load certain thickness after embedment study needed for sensor, at top steel plate operating platform into
Row earth rock material compaction in layers operation, records each layer earth rock material quality and final filling height；
Step 5: top blind flange is closed after to earth rock material filling, is fixed on top blind flange by hydraulic nut
Top steel plate operating platform upper surface.
Step 6: water inlet accesses external water source by PVC water pipe at left side activity steel plate or bottom activity steel plate, beats
It opens water inlet and becomes a mandarin and flow valve and keep certain aperture, guarantee becomes a mandarin on flowmeter stability of flow and reading is smaller, opens out
Flow flow valve；
Step 7: observing and recording out and flow meter readings, and stream reading is gradually stable out and closes close to after the reading that becomes a mandarin
Become a mandarin flow valve, flows flow valve out and is kept open；
Step 8: starting hydraulic cylinder applies thrust to contact activity steel plate according to setting power, and hydraulic cylinder, which pushes, lives
Given pace is controlled during dynamic steel plate, it is ensured that stabilization is pushed to hydraulic cylinder stroke maximum value；
Step 9: being again turned on the flow valve that becomes a mandarin, and applies setting pressure to flowing water is entered by changing external water supply device head
Power simultaneously keeps stable, and then fixed time intervals, which record out, flows flow value；
Step 10: if going out, stream stability of flow is constant, and record one closes the flow valve that becomes a mandarin after making stream group time；If going out stream flow
It is slowly varying, situation of change in organic glass observation window is persistently recorded using image recording apparatus, persistently record outflow until
Outflow is more than preset control value, closes the flow valve that becomes a mandarin；
Step 11: Darcy formula k=Δ Q/Is Δ t experiment with computing ground material infiltration coefficient is applied；In formula, k be to
Earth rock material infiltration coefficient is sought, Δ t is the seepage flow duration, and Δ Q is that time Δt records outflow, and s is flow section section
Product, I are seepage flow hydraulic gradient.
The present invention can effectively restore the seepage flow situation under Various Complex stress in earth rock material, while can realize three sides
It loads and is precisely controlled to stablizing for different stress, the device of the invention can implement a variety of seepage flow roads such as development level, vertical
The Seepage Experiment of diameter.It compensates for prior art patent of invention scale and the smaller earth and rockfill dam that can not restore of size fills out dam material live stage
The deficiencies of lowly influencing seepage research authenticity and reliability with situation, stress level；Existing Seepage Experiment dress is overcome simultaneously
Set the deficiency for being defined as Mono direct percolation greatly.
Detailed description of the invention
The invention patent is described further with case study on implementation with reference to the accompanying drawing:
Fig. 1 is the structural schematic diagram (rearview) of the invention patent；
Fig. 2 is the loading system schematic diagram of the invention patent；
Fig. 3 is the middle panel top view of the invention patent；
Fig. 4 is the invention patent pedestal bottom view；
Fig. 5 is the invention patent top plate top view；
Fig. 6 is the face A schematic diagram (rearview) shown in panel in the invention patent；
Fig. 7 is the face B schematic diagram (front view) shown in panel in the invention patent；
Fig. 8 is the face C schematic diagram (left view) shown in panel in the invention patent；
Fig. 9 is the face D schematic diagram (right view) shown in panel in the invention patent.
The meaning of appended drawing reference are as follows: 1- base hydraulic oil cylinder reaction frame, 2- side board support frame, the top 3- steel plate operating platform,
4- top blind flange, the bottom 5- activity steel plate, the bottom 6- fixation steel plate, 7- rear hydraulic oil cylinder reaction frame, the rear portion 8- activity steel plate,
9- lateral activity steel plate, 10- top particles collection chamber, 11- side hydraulic oil cylinder, the bottom 12- hydraulic cylinder, the rear portion 13- liquid
Compressing cylinder, the bottom 14- is into discharge outlet, 15- top panel seepage mouth, 16- hydraulic nut, 17- viewing window, 18- sensor wire
Hole slot, 19- lateral intake mouth, the side 20- is to panel seepage mouth.
Specific embodiment
Embodiment 1, a kind of true triaxial experimental provision and method for simulating the multidirectional seepage flow of earth rock material, referring to attached drawing: experiment
Device includes water tank, model casing, pressure apparatus, particle collection device, and model casing is divided into external box of microvave and internal cavities, outside
Portion's cabinet and internal cavities are all cuboidal configuration, and external box of microvave top surface steel plate extends outwardly and constitutes top steel plate operating platform
3, platform is equipped with top blind flange 4；Remaining five face of external box of microvave are all made by steel plate, respectively bottom fixation steel plate 6 and side
To fixation steel plate.Left side, just rear, in the steel plate of bottom a part are movable steel plate, such as: bottom activity steel plate 5, rear portion movable steel
Plate 8, lateral activity steel plate 9.The activity steel plate can slide back and forth along plate face vertical direction；Remaining steel plate is fixation steel plate；
Fixation steel plate and movable steel plate are in a plane and constitute external box of microvave under reset condition；Right side, positive forward direction steel plate monolith are
Fixation steel plate；The model casing internal cavities are located at external box of microvave lower left corner front, when movable steel plate is pushed into box house
When reaching maximum pushing position, movable steel plate, fixation steel plate and internal cavities side wall generate an empty room inside model casing；Institute
State external box of microvave top surface steel plate extend outwardly constitute a top steel plate operating platform 3, four apex angle positions of top steel plate operating platform
It sets and offers hydraulic nut and correspond to screw hole；Top blind flange 4 is set at the top of top steel plate operating platform 3, and top blind flange 4 is in top steel
3 four corner positions of plate operating platform, which correspond to, is provided with slot at screw hole, top blind flange 4 can pass through hydraulic nut 16 and top steel plate
The fitting of operating platform 3 is fixed.The top blind flange 4 is equipped with top particles collection chamber 10 above；The pressure apparatus includes
Hydraulic cylinder and reaction frame, hydraulic cylinder by left side hydraulic cylinder 11, just 13, bottom of backward hydraulic cylinder (rear hydraulic oil cylinder)
12 three parts of hydraulic cylinder composition, left side hydraulic cylinder amount to one group of oil cylinder, and the first steel plate of oil cylinder and left side activity steel plate connects
Touching, positive forward direction hydraulic cylinder amount to two groups of oil cylinder, and oil cylinder is contacted with positive forward direction activity steel plate, and bottom hydraulic cylinder amounts to oil cylinder two
Group, oil cylinder are contacted with bottom activity steel plate；Every group of hydraulic cylinder corresponds to a set of counter-force bracket, and counter-force bracket is located at outside each oil cylinder
Side, counter-force bracket are connect by counter-force floor and connecting rod with oil cylinder.Wherein, base hydraulic oil cylinder reaction frame 1, side board support frame 2,
Rear hydraulic oil cylinder reaction frame 7.In figure, bottom is into discharge outlet 14, top panel seepage mouth 15, hydraulic nut 16, viewing window 17,
Sensor wire hole slot 18, lateral intake mouth 19, lateral panel seepage mouth 20.
Include the following steps:
Step 1: determining experiment earth rock material type, selects and be inserted into first steel plate in corresponding pore aperture；
Step 2: all three groups of hydraulic cylinder strokes of reduction make all movable steel plates return to original state, i.e., movable steel plate
Same level is in fixation steel plate；
Step 3: opening top blind flange, and experiment ground material layering is packed into model casing external box of microvave；
Step 4: earth rock material load certain thickness after embedment study needed for sensor, at top steel plate operating platform into
Row earth rock material compaction in layers operation, records each layer earth rock material quality and final filling height；
Step 5: top blind flange is closed after to earth rock material filling, is fixed on top blind flange by hydraulic nut
Top steel plate operating platform upper surface.
Step 6: water inlet accesses external water source by PVC water pipe at left side activity steel plate or bottom activity steel plate, beats
It opens water inlet and becomes a mandarin and flow valve and keep certain aperture, guarantee becomes a mandarin on flowmeter stability of flow and reading is smaller, opens out
Flow flow valve；
Step 7: observing and recording out and flow meter readings, and stream reading is gradually stable out and closes close to after the reading that becomes a mandarin
Become a mandarin flow valve, flows flow valve out and is kept open；
Step 8: starting hydraulic cylinder applies thrust to contact activity steel plate according to setting power, and hydraulic cylinder, which pushes, lives
Given pace is controlled during dynamic steel plate, it is ensured that stabilization is pushed to hydraulic cylinder stroke maximum value；
Step 9: being again turned on the flow valve that becomes a mandarin, and applies setting pressure to flowing water is entered by changing external water supply device head
Power simultaneously keeps stable, and then fixed time intervals, which record out, flows flow value；
Step 10: if going out, stream stability of flow is constant, and record one closes the flow valve that becomes a mandarin after making stream group time；If going out stream flow
It is slowly varying, situation of change in organic glass observation window is persistently recorded using image recording apparatus, persistently record outflow until
Outflow is more than preset control value, closes the flow valve that becomes a mandarin；
Step 11: Darcy formula k=Δ Q/Is Δ t experiment with computing ground material infiltration coefficient is applied；In formula, k be to
Earth rock material infiltration coefficient is sought, Δ t is the seepage flow duration, and Δ Q is that time Δt records outflow, and s is flow section section
Product, I are seepage flow hydraulic gradient.
Beneficial effects of the present invention:
The present invention devises the true triaxial experimental provision and method of a kind of completely new simulation multidirectional seepage flow of earth rock material for the first time,
The seepage flow situation under Various Complex stress in earth rock material can be effectively restored, that realizes three direction difference stress stablizes load
Be precisely controlled, the device of the invention can carry out the Seepage Experiment of horizontal, vertical etc. a variety of percolation paths of realization.Effectively meet
Earth rock material seepage flow mechanism and the impervious measure experimental study of antiseepage, while applying also for large-scale hydraulic, earth structure and answering
Seepage flow deformation under the conditions of great burying, high confining pressure, a variety of seepage directions of miscellaneous structure is studied with the mechanism experiment destroyed.
Claims (10)
1. it is a kind of simulate the multidirectional seepage flow of earth rock material true triaxial experimental provision, including water tank, model casing, pressure apparatus,
Particle collection device, which is characterized in that the model casing is divided into external box of microvave and internal cavities, and external box of microvave and internal cavities are all
For cuboidal configuration, box top steel plate, which extends outwardly, constitutes a top steel plate operating platform, top steel plate operating platform
Top is equipped with top blind flange；Before the external box of microvave, back, the left side, the right side and bottom surface it is all made by steel plate, the left side, back,
A part in the steel plate of bottom surface is movable steel plate, is referred to as " lateral activity steel plate ", " bottom activity steel plate ", " activity after just
Steel plate ", the activity steel plate can slide back and forth along plate face vertical direction；Remaining steel plate is fixation steel plate；It is solid under reset condition
Determine steel plate and movable steel plate is in a plane and constitutes external box of microvave；The left side, front steel plate monolith are fixation steel plate；The mould
Molding box internal cavities are located at external box of microvave lower left corner front, reach maximum pushing position when movable steel plate is pushed into box house
When, movable steel plate, fixation steel plate and internal cavities side wall generate an empty room inside model casing；Above the top blind flange
Equipped with top particles collection chamber；The pressure apparatus includes hydraulic cylinder and reaction frame, and hydraulic cylinder is by left side hydraulic oil
Cylinder, just backward hydraulic cylinder, bottom hydraulic cylinder three parts composition, left side hydraulic cylinder amount to one group of oil cylinder, oil cylinder and left side
First steel plate of movable steel plate contacts, and positive forward direction hydraulic cylinder amounts to two groups of oil cylinder, and oil cylinder is contacted with positive forward direction activity steel plate, bottom
Portion's hydraulic cylinder amounts to two groups of oil cylinder, and oil cylinder is contacted with bottom activity steel plate；Every group of hydraulic cylinder corresponds to a set of counter-force bracket, instead
Power bracket is located on the outside of each oil cylinder, and counter-force bracket is connect by counter-force floor and connecting rod with oil cylinder.
2. the true triaxial experimental provision and method, feature of the simulation multidirectional seepage flow of earth rock material according to claim 1 exist
In the top steel plate operating platform is the platform that outer steel plate is constituted at the top of model casing；The steel plate operating platform is top
Cover board offer rigidly fixes face, which is a rectangular planes, and four vertex offer and top cover
The fixed hydraulic nut of plate matches nut bore.
3. a kind of true triaxial experimental provision and method for simulating the multidirectional seepage flow of earth rock material according to claim 1, special
Sign is that the water tank is single chamber configuration, includes a water level regulation container and force (forcing) pump, and water tank is passed through by water supply line
It is directly connected to by force (forcing) pump with external water source, water level regulation container is located at tank inner wall control cabinet water level, cavity bottom center
Position is provided with hole slot, and PVC water pipe one end connects the hole slot, other end link model case, and PVC water pipe is installed at water tank hole slot
Become a mandarin flow valve and the flowmeter that becomes a mandarin.
4. a kind of true triaxial experimental provision and method for simulating the multidirectional seepage flow of earth rock material according to claim 1, special
Sign is, the right side fixation steel plate of the model casing, top blind flange are double-layer structural, including the first steel plate and the second steel plate,
In, the first steel plate is on the outside of the second steel plate, and the first steel plate is bonded Chong Die completely with the second steel plate, and the first steel plate can be replaced,
Second steel plate is not replaceable.
5. a kind of true triaxial experimental provision and method for simulating the multidirectional seepage flow of earth rock material according to claim 1, special
Sign is that the particle collection device goes out at stream to correspond to powder collection cavity with right side by top particles collection chamber and constitutes, top
Portion's powder collection cavity is a stainless steel rectangular parallelepiped structure, and lateral, genesis analysis has multicomponent every rigid plate, top particles in cavity
Collection chamber is fixed on the first steel plate of top blind flange, top particles collection chamber bottom, i.e., with the first steel plate of top blind flange
Slot is provided at contact surface, top particles collection chamber top surface offers larger apopore, is cased with delivery hose at apopore；It is right
Side powder collection cavity is a stainless steel rectangular parallelepiped structure, and lateral, genesis analysis has multicomponent every rigid plate, right side particle in cavity
Collection chamber is fixed on the outside of lateral the first steel plate of seepage mouth, lateral powder collection inside cavities, i.e., with right side fixation steel plate the
Slot is provided at one steel plate contact surface, right side collection chamber outside offers larger apopore, is cased with out at apopore
Water hose.
6. a kind of true triaxial experimental provision and method for simulating the multidirectional seepage flow of earth rock material according to claim 1, special
Sign is, is equipped with rubber water-proof item between the left side, just rear, bottom activity steel plate and inner cavity side wall；
The left side activity steel plate is equipped with water inlet, and water inlet is connect by installation PVC water pipe with extraneous water supply device；It is described
Activity steel plate in bottom is equipped with water inlet, and water inlet is connect by installation PVC water pipe with extraneous water supply device；The left side activity
Equipped with flow control valve and the flowmeter that becomes a mandarin of becoming a mandarin on the PVC water pipe of steel plate water inlet；The bottom plate activity steel plate water inlet
Equipped with flow control valve and the flowmeter that becomes a mandarin of becoming a mandarin on PVC water pipe.
7. a kind of true triaxial experimental provision and method for simulating the multidirectional seepage flow of earth rock material according to claim 1, special
Sign is, is provided with several viewing windows on the positive forward direction fixation steel plate, viewing window is sealed using organic glass.
8. a kind of true triaxial experimental provision and method for simulating the multidirectional seepage flow of earth rock material according to claim 1, special
Sign is, several pore slots are reserved on the positive forward direction fixation steel plate, sensor wire after placement sensor inside model casing
It can be picked out by hole slot；There are several pores on first steel plate, there are several gross porositys on the second steel plate, each gross porosity the center point is corresponding
One pore；The top particles collection chamber base channel pore size distribution, diameter and the second steel plate of top blind flange are completely the same；The right side
Side powder collection cavity base channel pore size distribution, diameter and to laterally secure the second steel plate of steel plate completely the same.
9. a kind of true triaxial experimental provision of the multidirectional seepage flow of simulation earth rock material described in one of -8 and side according to claim 1
Method, which is characterized in that equipped with stream flow valve out and stream flowmeter out on delivery hose at the top particles collection chamber；It is described
Equipped with stream flow valve out and stream flowmeter out on delivery hose at the powder collection cavity of right side.
10. a kind of true triaxial experimental provision for simulating the multidirectional seepage flow of earth rock material described in claim 1 and method, feature exist
In steps are as follows:
Step 1: determining experiment earth rock material type, selects and be inserted into first steel plate in corresponding pore aperture；
Step 2: all three groups of hydraulic cylinder strokes of reduction make all movable steel plates return to original state, i.e., movable steel plate and solid
Determine steel plate and is in same level；
Step 3: opening top blind flange, and experiment ground material layering is packed into model casing external box of microvave；
Step 4: required sensor is studied in embedment after earth rock material loads certain thickness, and at top, steel plate operating platform carries out soil
Stone material compaction in layers operation records each layer earth rock material quality and final filling height；
Step 5: closing top blind flange after to earth rock material filling, and top blind flange is fixed on top by hydraulic nut
Steel plate operating platform upper surface；
Step 6: at left side activity steel plate or bottom activity steel plate water inlet by PVC water pipe access external water source, open into
It becomes a mandarin at the mouth of a river and flow valve and keeps certain aperture, guarantee becomes a mandarin on flowmeter stability of flow and reading is smaller, opens out stream stream
Measure valve；
Step 7: observing and recording out and flow meter readings, and stream reading is gradually stable out and closes and becomes a mandarin close to after the reading that becomes a mandarin
Flow valve flows flow valve out and is kept open；
Step 8: starting hydraulic cylinder applies thrust to contact activity steel plate according to setting power, and hydraulic cylinder pushes movable steel
Given pace is controlled during plate, it is ensured that stabilization is pushed to hydraulic cylinder stroke maximum value；
Step 9: being again turned on the flow valve that becomes a mandarin, and applies setting pressure simultaneously to flowing water is entered by changing external water supply device head
It keeps stablizing, then fixed time intervals, which record out, flows flow value；
Step 10: if going out, stream stability of flow is constant, and record one closes the flow valve that becomes a mandarin after making stream group time；If it is slow to go out stream flow
Variation, situation of change in organic glass observation window is persistently recorded using image recording apparatus, persistently records outflow until going out to flow
Amount is more than preset control value, closes the flow valve that becomes a mandarin；
Step 11: Darcy formula k=Δ Q/Is Δ t experiment with computing ground material infiltration coefficient is applied；In formula, k is wait seek soil
Stone material infiltration coefficient, Δ t are the seepage flow duration, and Δ Q is that time Δt records outflow, and s is flow section sectional area, and I is
Seepage flow hydraulic gradient.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811632577.9A CN109507085B (en) | 2018-12-29 | 2018-12-29 | True triaxial experiment device and method for simulating multidirectional seepage of soil and stone materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811632577.9A CN109507085B (en) | 2018-12-29 | 2018-12-29 | True triaxial experiment device and method for simulating multidirectional seepage of soil and stone materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109507085A true CN109507085A (en) | 2019-03-22 |
| CN109507085B CN109507085B (en) | 2021-05-28 |
Family
ID=65755780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811632577.9A Active CN109507085B (en) | 2018-12-29 | 2018-12-29 | True triaxial experiment device and method for simulating multidirectional seepage of soil and stone materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109507085B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110361314A (en) * | 2019-07-23 | 2019-10-22 | 水利部交通运输部国家能源局南京水利科学研究院 | Encapsulating method and its device suitable for large-scale three-dimensional load permeameter |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3923954B2 (en) * | 2004-03-31 | 2007-06-06 | 飛島建設株式会社 | Consolidation permeability test apparatus and test method |
| CN202975004U (en) * | 2012-09-24 | 2013-06-05 | 上海大学 | Multifunctional cuboid geotechnical model test system for simulating seepage of artesian aquifer |
| CN104316447A (en) * | 2014-10-28 | 2015-01-28 | 中国矿业大学 | Fractured rock mass stress and seepage coupled testing system and method |
| CN104897539A (en) * | 2015-04-30 | 2015-09-09 | 四川大学 | Horizontal permeameter suitable for soil horizontal contact surface shearing deformation |
| CN106197944A (en) * | 2016-07-13 | 2016-12-07 | 中国矿业大学 | The testing system apparatus of simulation complex condition deep tunnel inrush through faults and method |
| CN207263549U (en) * | 2017-04-26 | 2018-04-20 | 中南大学 | A kind of pressure water system of the large-scale Deep Mine Roadway model testing machine of true triaxial |
| CN207379888U (en) * | 2017-11-03 | 2018-05-18 | 青岛海洋地质研究所 | Permeability measuring apparatus containing hydrate sediment under condition of triaxial stress |
| CN108205057A (en) * | 2017-12-06 | 2018-06-26 | 湖南大学 | Underground engineering blocks the simulation test device that water circulation path causes city ground subsidence |
| CN108519293A (en) * | 2018-03-19 | 2018-09-11 | 太原理工大学 | A kind of true triaxial rock shearing seepage experimental apparatus |
-
2018
- 2018-12-29 CN CN201811632577.9A patent/CN109507085B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3923954B2 (en) * | 2004-03-31 | 2007-06-06 | 飛島建設株式会社 | Consolidation permeability test apparatus and test method |
| CN202975004U (en) * | 2012-09-24 | 2013-06-05 | 上海大学 | Multifunctional cuboid geotechnical model test system for simulating seepage of artesian aquifer |
| CN104316447A (en) * | 2014-10-28 | 2015-01-28 | 中国矿业大学 | Fractured rock mass stress and seepage coupled testing system and method |
| CN104897539A (en) * | 2015-04-30 | 2015-09-09 | 四川大学 | Horizontal permeameter suitable for soil horizontal contact surface shearing deformation |
| CN106197944A (en) * | 2016-07-13 | 2016-12-07 | 中国矿业大学 | The testing system apparatus of simulation complex condition deep tunnel inrush through faults and method |
| CN207263549U (en) * | 2017-04-26 | 2018-04-20 | 中南大学 | A kind of pressure water system of the large-scale Deep Mine Roadway model testing machine of true triaxial |
| CN207379888U (en) * | 2017-11-03 | 2018-05-18 | 青岛海洋地质研究所 | Permeability measuring apparatus containing hydrate sediment under condition of triaxial stress |
| CN108205057A (en) * | 2017-12-06 | 2018-06-26 | 湖南大学 | Underground engineering blocks the simulation test device that water circulation path causes city ground subsidence |
| CN108519293A (en) * | 2018-03-19 | 2018-09-11 | 太原理工大学 | A kind of true triaxial rock shearing seepage experimental apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110361314A (en) * | 2019-07-23 | 2019-10-22 | 水利部交通运输部国家能源局南京水利科学研究院 | Encapsulating method and its device suitable for large-scale three-dimensional load permeameter |
| CN110361314B (en) * | 2019-07-23 | 2022-04-12 | 水利部交通运输部国家能源局南京水利科学研究院 | Sealing method and device suitable for large three-way loading permeameter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109507085B (en) | 2021-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106950153B (en) | It shakes out process simulation special reactor and its test method containing hydrate sediment | |
| CN107167411A (en) | Piping infiltration visible model testing device and test method in a kind of seepage liquefaction | |
| CN106437644A (en) | Large bottom water sandstone oil reservoir development physical simulation experiment device and working method thereof | |
| CN108828195B (en) | Indoor test method for simulating upward return of post-grouting slurry at pile end | |
| CN103953335B (en) | The physical simulating method of a kind of petroleum reservoir configuration and device | |
| CN204125898U (en) | The experimental rig of Dam Foundation Seepage under a kind of failure under earthquake action | |
| CN109386270A (en) | Coal rock layer mash gas dynamic is anti-reflection seepage flow and displacement simulation pilot system and test method | |
| CN108825221B (en) | Device and method for detecting distribution of residual oil in homogeneous and heterogeneous thick oil layers in layer | |
| CN108951717A (en) | A kind of Multifunctional pile base model test box device and its application method | |
| CN109580368A (en) | Excavation Deformation of Deep Foundation Pits character centrifugal model test device in a kind of multilayer artesian water stratified formations | |
| CN108088982A (en) | Simulate the Experimental Method in Laboratory of fine grained seepage inflow erosion inside deep aquifers sand | |
| CN110836961A (en) | Model test system and method for foundation pit construction stability research under influence of rainfall | |
| CN103983742A (en) | Coal bed overburden strata broken coal and rock mass gas transport and extraction experiment system | |
| CN206470116U (en) | A kind of experimental rig for simulating the lower basement bottom board stress of artesian water effect | |
| CN109085323A (en) | It is a kind of can hierarchical control water level delaminating deposition model test apparatus and test method | |
| CN106802272A (en) | Fracture network anisotropy of permeability is tested and visualization system | |
| Paterson et al. | Flow-driven compaction of a fibrous porous medium | |
| CN108986624A (en) | Saturating type cap rock is collapsed to because of experimental provision under upper resistance | |
| CN113882837B (en) | Water cone morphological simulation and water control viscosity reduction experimental device and method for bottom water heavy oil reservoir horizontal well | |
| CN109507085A (en) | Simulate the true triaxial experimental provision and its method of the multidirectional seepage flow of earth rock material | |
| CN110456028A (en) | It is a kind of can be with the grouting test device and method of independent control three-dimensional stress state | |
| CN116298211B (en) | Test device and method for simulating excavation erosion of water-bearing stratum in near tunnel | |
| CN113464108B (en) | Physical model experimental method for water flooding failure type water invasion development | |
| CN109709305B (en) | Slope interflow simulation device and method for simulating interflow | |
| CN203949850U (en) | A kind of test unit of base pit engineering seepage failure evolution |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chen Shengshui Inventor after: Ling Hua Inventor after: Shi Beixiao Inventor after: Shen Guangze Inventor after: Zhang Yijiang Inventor after: Ji Enyue Inventor after: Jiang Jingdong Inventor after: Han Huaqiang Inventor after: Chen Chenghao Inventor after: Mei Shiang Inventor after: Zhong Qiming Inventor after: Fu Zhongzhi Inventor after: Yan Zhikun Inventor after: Yang Fan Inventor after: Zhang Xian Inventor after: Sun Jian Inventor before: Mei Shiang Inventor before: Other inventors request not to publish names |
|
| CB03 | Change of inventor or designer information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |