CN207472734U - A kind of permeability apparatus that can simulate waterpower gradient magnitude and direction dynamic changing condition - Google Patents
A kind of permeability apparatus that can simulate waterpower gradient magnitude and direction dynamic changing condition Download PDFInfo
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- CN207472734U CN207472734U CN201721717202.3U CN201721717202U CN207472734U CN 207472734 U CN207472734 U CN 207472734U CN 201721717202 U CN201721717202 U CN 201721717202U CN 207472734 U CN207472734 U CN 207472734U
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Abstract
A kind of permeability apparatus that can simulate waterpower gradient magnitude and direction dynamic changing condition, including permeameter main body, water supply installation, captation, the permeameter main body includes runing rest, the lucite tube for holding test sample, the lucite tube is mounted on runing rest, and the lucite tube rotates with runing rest and adjusts angle of inclination.The water supply installation includes water tank, for bucket, and water tank, for bucket, is connected permeameter main body by connecting line for bucket, supplied water to permeameter main body by connecting line connection.The captation includes dust-collecting bucket, and dust-collecting bucket connects permeameter main body by connecting line, and the water that permeameter main body penetrates under hydraulic gradient size and Orientation change condition is flowed in dust-collecting bucket.The utility model is by adjusting for bucket and the relative altitude of dust-collecting bucket and the angle of inclination of lucite tube, to change test sample hydraulic gradient size and Orientation, so as to the true seepage environment residing for simulation test sample, the infiltration coefficient of test sample is dynamically measured.
Description
Technical field
It is specifically a kind of to simulate waterpower gradient magnitude and direction dynamic the utility model is related to Geotechnical Engineering field
The permeability apparatus of change condition.
Background technology
The infiltrative research of soil is one of soil mechanics and geotechnical engineering neighborhood subject that is important and being of practical significance, it
Closely related with human lives, the field being related to is extensive, including：Water conservancy, building, mining, traffic, oil, agricultural etc..Water is in soil
The phenomenon that being flowed in body opening gap referred to as seepage flow, seepage flow can cause the seepage deformation of the soil body, directly to earth structure and ground
Stability and security impacts, and the permeability for studying soil is extremely important.Infiltration coefficient is concentrated expression soil body permeability
One index, native infiltration coefficient can preferably judge the permeability of soil in Accurate Determining true environment, have to infiltration calculation
Important meaning.
The method of indoor measurement infiltration coefficient is broadly divided into hydrostatic head method and variable water level method at present, by changing percolation flow velocity
Size forms the method for different hydraulic slopes to measure infiltration coefficient.Both methods only take into account adjustment hydraulic gradient size and
Have ignored adjustment hydraulic gradient direction, it is impossible to simulate the influence of waterpower gradient magnitude and direction dynamic change to infiltration coefficient, nothing
Method accurately reflects permeability feature native under different hydraulic gradients in true environment.In order to simulate the true seepage flow ring of inside soil body
Border more accurately obtains the soil body and changes in hydraulic gradient（The variation of size and Orientation）Under the conditions of infiltration coefficient dynamic evolution
Rule develops a set of infiltration dress that can be simulated in the measure soil body osmotic coefficient of hydraulic gradient size and Orientation dynamic changing condition
It puts and is very important.
Invention content
To solve problems of the prior art, the utility model offer is a kind of to simulate waterpower gradient magnitude and direction
The permeability apparatus of dynamic changing condition can simulate the dynamic change feelings of the hydraulic gradient size and Orientation of inside soil body in experiment
Condition, can be right under the single variation of hydraulic gradient size and Orientation or hydraulic gradient size and Orientation while dynamic changing condition
Soil body osmotic coefficient is measured, and more accurately obtains soil body infiltration coefficient under hydraulic gradient size and Orientation change condition
Dynamic evolution rule, additionally it is possible to determine critical hydraulic gradient by observing test sample seepage deformation process in lucite tube
Size and Orientation, more intuitively reflect the soil body Penetration Signature.
The technical solution that the utility model is taken is：
A kind of permeability apparatus that can simulate waterpower gradient magnitude and direction dynamic changing condition including permeameter main body, supplies
Water installations, captation, the permeameter main body includes runing rest, the lucite tube for holding test sample, described organic
Glass tube is mounted on runing rest, and the lucite tube rotates with runing rest and adjusts angle of inclination.The dress that supplies water
It puts including water tank, for bucket, water tank, for bucket, permeameter is connected for bucket by connecting line connection by connecting line
Main body supplies water to permeameter main body.The captation includes dust-collecting bucket, and dust-collecting bucket connects permeameter master by connecting line
Body, the water that permeameter main body penetrates under hydraulic gradient size and Orientation change condition are flowed in dust-collecting bucket.
The permeameter main body further include upper cover plate, upper porous disc, lower porous disc, support tube, lower cover, fastening bolt,
Fixing bracket.Lucite tube one end is placed in lower cover top circular groove, lower cover bottom surface setting water outlet, it is described go out
The mouth of a river is connect with outlet pipe, and upper porous disc and lower porous disc are placed in lucite tube, and lower porous disc is by being placed on lower cover
Support tube support in top groove, test sample are placed between porous disc and lower porous disc, and gravel is filled on upper porous disc
Stone or bead, lucite tube other end setting upper cover plate, upper cover plate top setting water inlet, water inlet and water supply rubber tube
Connection, upper cover plate make lucite tube be formed as a confined space with lower cover.In the lucite tube by upper cover plate extremely
Lower cover can be divided into water breeze way, dress sample section, water exit end, and three bolts are set around the circumference uniform distribution of upper cover plate and lower cover
Hole, the support annulus on runing rest are sleeved on centre position outside lucite tube, and fastening bolt sequentially passes through upper cover crab bolt
Hole, support annulus bolt hole and lower cover bolt hole closely connect upper cover plate, lucite tube, support annulus and lower cover,
Support annulus is fixed on by nut in fastening bolt, and the supporting rod on runing rest is inserted into support bracket fastened riser corresponds to
Card slot in, supporting rod can be freely rotated in card slot, hold the lucite tube of test sample with the branch on runing rest
The rotation of strut and adjust angle of inclination.
The water supply barrel side wall of the water supply installation from top to bottom installs water inlet rubber tube and spilling water rubber tube, rubber tube of intaking
It is connect with water tank, the pure water held in water tank or distilled water is transported to confession by the water pump being mounted on water inlet rubber tube
In bucket, the water overflowed for bucket is back to water tank, water supply bottom of the barrel setting water supply rubber tube and upper cover by spilling water rubber tube
Plate water inlet connects, and is supplied water by water supply rubber tube to permeameter main body.
Water rubber tube is provided in the bottom of the barrel of catchmenting of the captation, and water outlet rubber tube is connect with lower cover apopore,
The water that permeameter main body penetrates under hydraulic gradient size and Orientation change condition is flowed to by being discharged rubber tube in dust-collecting bucket,
Dust-collecting bucket side wall installs drainage rubber pipe, and the water of spilling is collected into graduated cylinder.
The upper cover plate is organic glass disk, and inlet opening, inlet opening and water supply rubber are set at disk end face center
Pipe is connected and is sealed by hose clamp, and upper cover plate bottom surface setting circular groove, circular groove is equipped with lucite tube contact surface
Sealing ring；The lower cover is organic glass disk, and apopore, apopore and water outlet rubber tube are set at disk bottom center
It connects and is sealed by hose clamp, lower cover plate top surface setting circular groove, circular groove is equipped with close with lucite tube contact surface
Seal.
The lucite tube is transparent material, and diameter is more than or equal to test sample grain sized 855 times, the length of diameter
3 ~ 4 times.The support tube is transparent organic glass pipe, and highly 1 ~ 1.5 times for diameter, tube wall is evenly distributed with permeable hole.
The upper porous disc, lower porous disc are all the organic glass disk for being covered with uniform permeable hole, in porous disc and test
Plasticine is smeared along porous disc edge in the side of sample contacts.
The runing rest includes support annulus and two supporting rods；It supports annulus that three uniformly distributed bolts hole are set, adopts
It is made of steel plate, supporting rod is that outer surface is evenly distributed with tooth socket and the tooth socket gear stick consistent with rod axis direction, using steel rod elements system
Into support annulus is sleeved on lucite tube centre position across fastening bolt, is fixed in fastening bolt by nut, annulus is put down
Face is vertical with lucite tube axis；Two supporting rod axial symmetry are arranged in annulus both sides and are welded on annular edge, will prop up
Strut is placed on the corresponding card slot of fixing bracket, and supporting rod can be freely rotated in card slot, and lucite tube is with supporting rod
Rotation and adjust angle of inclination, so as to fulfill the change in hydraulic gradient direction, bayonet is set above card slot, by bayonet
Card the rotation of supporting rod is limited on the tooth socket of supporting rod.
The fixing bracket includes two pieces of risers being placed in parallel and two fixing bolts, and two pieces of risers are made of steel plate,
Two bolts hole are symmetrical arranged with vertical axis one piece of riser bottom, another piece of riser sets bolt hole in corresponding position, Gu
Bolt is determined across the corresponding bolt hole of two pieces of risers, is fixed bolt and riser by nut, along riser vertical axis away from riser top
Corresponding card slot at a certain distance from portion is set, bayonet is arranged above in card slot, the card made of steel plate is installed on bayonet,
Card may be stuck on supporting rod tooth socket.
It is described to be both provided with lifting component for bucket and dust-collecting bucket, by lifting phase of the component adjustment for bucket and dust-collecting bucket
To height, to change test sample both sides head pressure.
A kind of permeability apparatus that can simulate waterpower gradient magnitude and direction dynamic changing condition of the utility model, by adjusting
For the angle of inclination of the relative altitude and lucite tube of bucket and dust-collecting bucket, to change test sample hydraulic gradient size
And direction, so as to the true seepage environment residing for simulation test sample, the infiltration coefficient of test sample is dynamically measured, more accurately
Ground obtains the dynamic evolution rule of soil body infiltration coefficient under hydraulic gradient size and Orientation change condition；Using transparent organic glass
Glass pipe holds test sample, facilitate fine grain bounce during observation experiment, movement, the generation of infiltration lane, water muddiness
Phenomena such as degree, more accurately determines the size and Orientation of critical hydraulic gradient, can intuitively reflect the Penetration Signature of the soil body.
Description of the drawings
Fig. 1 is the overall structure diagram of the utility model.
Fig. 2 is the whole positive structure diagram of the utility model.
Fig. 3 is the permeameter main body positive structure diagram of the utility model.
Fig. 4 is the permeameter main body left view structural representation of the utility model.
Fig. 5 is the left view structural representation under the permeameter main body angle of inclination of the utility model.
Fig. 6 is the main structure diagram of the upper cover plate of the utility model.
Fig. 7 is the present invention looks up structural representation of the lower cover of the utility model.
Fig. 8 is the structure diagram of the porous disc of the utility model.
Fig. 9 is the main structure diagram of the support tube of the utility model.
Figure 10 is the overlooking the structure diagram of the runing rest of the utility model.
Figure 11 is the support bracket fastened main structure diagram of the utility model.
Figure 12 is enlarged view at the A of Figure 11.
Figure 13 is the support bracket fastened left view structural representation of the utility model.
Figure 14 is enlarged view at the B of Figure 13.
Specific embodiment
It is shown in Figure 1, a kind of permeability apparatus that can simulate waterpower gradient magnitude and direction dynamic changing condition, the infiltration
Device includes permeameter main body 1, water supply installation 2, captation 3.Shown in Figure 3, the permeameter main body 1 includes upper cover plate
4th, lucite tube 8, upper porous disc 6, lower porous disc 7, support tube 9, lower cover 5, fastening bolt 10, runing rest 11, fixation
Stent 12.8 one end of lucite tube is placed in 5 top circular groove of lower cover, 5 bottom surface of lower cover setting water outlet, water outlet
Mouth is connect with outlet pipe 19, and upper porous disc 6 and lower porous disc 7 are placed in lucite tube 8, and lower porous disc 7 is by being placed on down
Support tube 9 in 5 top groove of cover board supports, and test sample 14 is placed between porous disc 6 and lower porous disc 7, upper permeable
Pack gravel or bead 13 on plate 6,8 other end of lucite tube setting upper cover plate 4,4 top setting water inlet of upper cover plate, into
The mouth of a river is connect with water supply rubber tube 18, and upper cover plate 4 makes lucite tube 8 be formed as a confined space, organic glass with lower cover 5
It can be divided into water breeze way 15, dress sample section 16, water exit end 17, around upper cover plate 4 under by upper cover plate 4 to lower cover 5 in glass pipe 8
The circumference uniform distribution of cover board 5 sets three bolts hole.It is intermediate that support annulus 29 on runing rest 11 is sleeved on 8 outside of lucite tube
Position, fastening bolt 10 sequentially passes through 4 bolt hole of upper cover plate, support 5 bolt hole of 29 bolt hole of annulus and lower cover, by upper cover plate
4th, lucite tube 8, support annulus 29 and lower cover 5 closely connect, and support annulus 29 is fixed on fastening bolt 10 by nut
On, the supporting rod 30 on runing rest 11 is inserted into 12 riser of fixing bracket, 31 corresponding card slot 33, supporting rod 30 is in card
Can be freely rotated in slot 33, hold the lucite tube 8 of test sample with the rotation of the supporting rod 30 on runing rest 11 and
Angle of inclination is adjusted, so as to fulfill the change in hydraulic gradient direction, when permeameter main body is adjusted to required hydraulic gradient direction
Card 35 on bayonet 34 is stuck in the rotation that supporting rod 30 is limited on the tooth socket of supporting rod 30, is realized to inclined organic glass
The fixation of pipe prevents lucite tube rotation from generating error to experimental result.
Shown in Figure 1, the water supply installation 2 includes water tank 20, water pump 23, for bucket 21, connecting line.For bucket
21 side walls from top to bottom install water inlet rubber tube 24 and spilling water rubber tube 25, and water inlet rubber tube 24 is connect with water tank 20, by pacifying
The pure water or distilled water that are held in water tank 20 are transported in bucket 21, overflowing by the water pump 23 on water inlet rubber tube 24
Water rubber tube 25 will be back to water tank 20 for the water that bucket 21 overflows, ensure to provide constant head for bucket 21 and reach cycle
The effect of water.It connect with 4 inlet opening of upper cover plate for 21 bottom of bucket setting water supply rubber tube 18, is oozed by water supply rubber tube 18
Saturating instrument main body 1 supplies water.
The captation 3 includes：Dust-collecting bucket 22, graduated cylinder 27, connecting line.22 bottom of dust-collecting bucket setting water outlet rubber tube
19 connect with 5 apopore of lower cover, and the water that permeameter main body 1 penetrates under hydraulic gradient size and Orientation change condition passes through
Water outlet rubber tube 19 is flowed in dust-collecting bucket 22, and the water of spilling is collected into graduated cylinder 27 by 22 side wall of dust-collecting bucket installation drainage rubber pipe 26
In, ensure that dust-collecting bucket 22 provides constant head, and facilitate the liquid collected and oozed out.
It is shown in Figure 6, upper cover plate 4 be organic glass disk, at disk end face center set inlet opening, inlet opening with
Water supply rubber tube 18 connect and by hose clamp seal, upper cover plate bottom surface setting circular groove, depth be 15mm ~ 25mm, groove with
8 contact surface of lucite tube is equipped with sealing ring 36.Shown in Figure 7, lower cover 5 is organic glass disk, in disk bottom surface
Apopore is set at center, and apopore connect with water outlet rubber tube 19 and sealed by hose clamp, and the setting of lower cover plate top surface is round recessed
Slot, depth are 15mm ~ 25mm, and groove is equipped with sealing ring 36 ' with 8 contact surface of lucite tube.
Shown in Figure 3, lucite tube 8 is transparent material, is observed convenient for the correlated phenomena to experimentation, directly
Diameter is not less than test sample grain sized 855 times, 3 ~ 4 times of the length of diameter.
Shown in Figure 8, upper porous disc 6 and lower porous disc 7 are all the organic glass disk for being covered with uniform permeable hole, saturating
Water plate smears plasticine with the side that test sample 14 contacts along porous disc edge, prevents test sample 14 from porous disc and tube wall
Gap in flow out.
It is shown in Figure 9, support tube 9 be transparent organic glass pipe, a diameter of 100mm ~ 150mm, highly for diameter 1 ~
1.5 times, tube wall is evenly distributed with permeable hole, convenient for observing the flow that water exit end penetrates.
Shown in Figure 10, runing rest 11 includes support annulus 29 and two supporting rods 30.Support the setting of annulus 29 three
A uniformly distributed bolt hole, is made of steel plate, and supporting rod 30 is that outer surface is evenly distributed with tooth socket and tooth socket is consistent with rod axis direction
Gear stick is made of steel rod elements.Support annulus 29 is sleeved on 8 centre position of lucite tube across fastening bolt 10, passes through spiral shell
Mother is fixed in fastening bolt 10, and circular planes are vertical with 8 axis of lucite tube；Two 30 axial symmetry of supporting rod are arranged in circle
29 both sides of ring are simultaneously welded on 29 edge of annulus, supporting rod 30 are placed on 12 corresponding card slot 33 of fixing bracket, supporting rod
30 can be freely rotated in card slot 33, and lucite tube 8 adjusts angle of inclination with the rotation of supporting rod 30, so as to fulfill water
The change of power gradient direction sets bayonet 34 above card slot 33, and the tooth of supporting rod 30 is stuck in by the card 35 in bayonet 34
The rotation of supporting rod 30 is limited on slot, realizes the fixation to inclined lucite tube, prevents lucite tube rotation to experiment
As a result error is generated.
Referring to shown in Figure 11-14, fixing bracket 12 includes two pieces of risers 31 being placed in parallel and two fixing bolts 32.Two
Block riser 31 is made of steel plate, is symmetrical arranged two bolts hole one piece of riser bottom with vertical axis, another piece of riser is right
Answer position that bolt hole is set, fixing bolt 32 passes through the corresponding bolt hole of two pieces of risers, consolidated bolt 32 and riser 31 by nut
It is fixed, along riser vertical axis away from corresponding card slot 33 is set at a certain distance from riser top, bayonet 34 is arranged above in card slot,
Card 35 made of steel plate are installed on bayonet 34, card 35 may be stuck on 30 tooth socket of supporting rod.
The rubber tube uses high-strength rubber pipe, and rubber tube carries out preventing water leakage measure with component junction.The water supply
Bucket 21 is both provided with lifting component 28 with dust-collecting bucket 22, by lifting the adjustment of component 28 for the relatively high of bucket 21 and dust-collecting bucket 22
It spends to change test sample both sides head pressure.
Below to measuring soil body penetration system under hydraulic gradient size and Orientation dynamic changing condition using the utility model
Several application methods are described in detail：
（1）Fill sample：8 one end of lucite tube is placed in horizontal positioned 5 top surface groove of lower cover, support tube 9 is put
It puts in 5 top surface groove center position of lower cover, lower porous disc 7 is positioned on support tube 9, in lower porous disc 7 and lucite tube 8
Plasticine is smeared at the gap of tube wall contact；Then representative earth material sample is taken from air-dried, loose earth material sample,
Screen analysis test is carried out, determines the grain composition of sample, further according to the dry density and specimen height for needing to control, calculates sample
Required weight after weighing dispensing, to reduce thickness material segregation phenomenon, ensures the uniformity of sample, can drink plus be equivalent to sample and weighs 1
~ 2% moisture, mix even laminating are fitted into lucite tube 8, using the density for hitting real or vibration encryption method and reaching requirement；
Porous disc 6 is put into after the completion of sample filling, gravel is loaded on upper porous disc 6 or bead 13, gravel or bead reaches
To the effect for entering water buffering, uniformly infiltrating, the support annulus 29 on runing rest 11 is sleeved on 8 outside of lucite tube, is covered
Upper cover plate 4, fastening bolt 10 sequentially pass through 4 bolt hole of upper cover plate, support annulus 29 bolt hole, 5 bolt hole of lower cover by upper cover
Plate 4, lucite tube 8, runing rest 11, lower cover 5 closely connect, and mounted instrument is placed on fixing bracket 12,
Connect water supply installation 2.
（2）Saturation：The actual (real) thickness of sample is measured, saturation exhaust is carried out using hot water saturation, test sample will be held
The water inlet of 14 lucite tube 8 is under, the storage hot water in water tank 20, by water pump 23 by delivery to for bucket
21, the water level for bucket 21 is made to be slightly above sample basal surface position, is slowly promoted for bucket 21,1cm is promoted every time, until supplying bucket
Water level is equal with water level in sample to be further continued for being promoted, and hot water slowly penetrates into upwards from instrument bottom, it is ensured that makes the slow saturation of sample
To exclude the air in sample completely.
（3）After the completion for the treatment of sample saturation, captation 3 is connected, and adjust and make for bucket 21 and 22 relative altitude of dust-collecting bucket
Water level is consistent, slowly adjusts 8 angle of inclination of lucite tube, card 35 is stuck in 30 tooth of supporting rod when reaching requirement of experiment angle
In slot, then adjustment reaches initial infiltration gradient for bucket 21 with 22 relative altitude of dust-collecting bucket, improves infiltration step by step after stablizing
Gradient increases measure water percolating capacity 3 times with graduated cylinder 21 after head 30min to 1h every time, surveys every time between read time and is divided into 10 ~ 20 points
Clock, while survey and read water temperature, room temperature, and pass through the situation of change of transparent organic glass pipe observation dress sample section test sample.As carefully
Whether the beating, move of particle, the generation of infiltration lane, muddy degree, fine grained in water exit end observation water are taken out of by flow
Deng if the water percolating capacity measured three times is basicly stable, and phenomenon without exception, you can promoted to next stage hydraulic gradient.For every
Grade hydraulic gradient repeats aforesaid operations, until test sample destroys, when head cannot be further continued for increasing, you can terminate experiment,
Hydraulic gradient size and direction are critical hydraulic gradient size and Orientation during test sample seepage failure, by measuring each
The infiltration coefficient of test sample, obtains soil body infiltration coefficient under hydraulic gradient size and Orientation change condition under grade hydraulic gradient
Dynamic evolution rule.
Claims (10)
1. a kind of permeability apparatus that can simulate waterpower gradient magnitude and direction dynamic changing condition, including permeameter main body（1）, supply
Water installations（2）, captation（3）, it is characterised in that：The permeameter main body（1）Including runing rest（11）, hold test examination
Sample（14）Lucite tube（8）, the lucite tube（8）Mounted on runing rest（11）On, the lucite tube（8）
With runing rest（11）It rotates and adjusts angle of inclination；The water supply installation（2）Including water tank（20）, for bucket（21）, storage
Water tank（20）By connecting line connection for bucket（21）, for bucket（21）Permeameter main body is connected by connecting line（1）, give
Permeameter main body（1）It supplies water；The captation（3）Including dust-collecting bucket（22）, dust-collecting bucket（22）It is oozed by connecting line connection
Saturating instrument main body（1）, permeameter main body（1）The water penetrated under hydraulic gradient size and Orientation change condition flows to dust-collecting bucket
（22）In.
2. a kind of permeability apparatus that can simulate waterpower gradient magnitude and direction dynamic changing condition according to claim 1,
It is characterized in that：The permeameter main body（1）Further include upper cover plate（4）, upper porous disc（6）, lower porous disc（7）, support tube（9）、
Lower cover（5）, fastening bolt（10）, fixing bracket（12）；
Lucite tube（8）One end is placed on lower cover（5）In top circular groove, lower cover（5）Bottom surface sets water outlet, institute
State water outlet and water outlet rubber tube（19）Connection, upper porous disc（6）With lower porous disc（7）It is placed on lucite tube（8）It is interior, under
Porous disc（7）By being placed on lower cover（5）Support tube in top groove（9）Support, test sample（14）It is placed on permeable
Plate（6）With lower porous disc（7）Between, upper porous disc（6）Upper pack gravel or bead（13）, lucite tube（8）The other end
Upper cover plate is set（4）, upper cover plate（4）Top sets water inlet, water inlet and water supply rubber tube（18）Connection, upper cover plate（4）With
Lower cover（5）Make lucite tube（8）Be formed as a confined space；
The lucite tube（8）It is interior by upper cover plate（4）To lower cover（5）It can be divided into water breeze way（15）, dress sample section（16）、
Water exit end（17）, around upper cover plate（4）With lower cover（5）Circumference uniform distribution set three bolts hole, runing rest（11）On
Support annulus（29）It is sleeved on lucite tube（8）External centre position, fastening bolt（10）Sequentially pass through upper cover plate（4）Bolt
Hole, support annulus（29）Bolt hole and lower cover（5）Bolt hole, by upper cover plate（4）, lucite tube（8）, support annulus（29）
And lower cover（5）Close connection, supports annulus（29）Fastening bolt is fixed on by nut（10）On, by runing rest（11）On
Supporting rod（30）It is inserted into fixing bracket（12）Riser（31）Corresponding card slot（33）In, supporting rod（30）In card slot（33）
In can be freely rotated, hold test sample（14）Lucite tube（8）With runing rest（11）On supporting rod（30）'s
It rotates and adjusts angle of inclination.
3. a kind of permeability apparatus that can simulate waterpower gradient magnitude and direction dynamic changing condition according to claim 1,
It is characterized in that：The water supply installation（2）Supply bucket（21）Side wall from top to bottom installs water inlet rubber tube（24）With spilling water rubber
Pipe（25）, rubber tube of intaking（24）With water tank（20）Connection, by being mounted on water inlet rubber tube（24）On water pump（23）It will storage
Water tank（20）In the pure water that holds or distilled water be transported to for bucket（21）In, spilling water rubber tube（25）It will be for bucket（21）It overflows
The water gone out is back to water tank（20）, for bucket（21）Bottom sets water supply rubber tube（18）With upper cover plate（4）Water inlet connects,
Pass through water supply rubber tube（18）Give permeameter main body（1）It supplies water.
4. a kind of permeability apparatus that can simulate waterpower gradient magnitude and direction dynamic changing condition according to claim 1,
It is characterized in that：The captation（3）Dust-collecting bucket（22）Bottom setting water outlet rubber tube（19）, it is discharged rubber tube（19）With under
Cover board（5）Apopore connects, permeameter main body（1）The water penetrated under hydraulic gradient size and Orientation change condition is by going out
Water rubber tube（19）Flow to dust-collecting bucket（22）In, dust-collecting bucket（22）Side wall installs drainage rubber pipe（26）, the water of spilling is collected
To graduated cylinder（27）In.
5. a kind of permeability apparatus that can simulate waterpower gradient magnitude and direction dynamic changing condition according to claim 2,
It is characterized in that：The upper cover plate（4）For organic glass disk, inlet opening is set at disk end face center, and inlet opening is with supplying water
Rubber tube（18）It connects and is sealed by hose clamp, upper cover plate（4）Bottom surface sets circular groove, circular groove and lucite tube
（8）Contact surface is equipped with sealing ring（36）；The lower cover（5）For organic glass disk, it is provided at disk bottom center
Water hole, apopore and water outlet rubber tube（19）It connects and is sealed by hose clamp, lower cover（5）Top surface sets circular groove, round
Groove and lucite tube（8）Contact surface is equipped with sealing ring（36）.
6. a kind of permeability apparatus that can simulate waterpower gradient magnitude and direction dynamic changing condition according to claim 2,
It is characterized in that：The lucite tube（8）For transparent material, diameter is more than or equal to test sample grain sized 855 times, it is the length of
3 ~ 4 times of diameter；The support tube（9）For transparent organic glass pipe, highly 1 ~ 1.5 times for diameter, tube wall is evenly distributed with permeable hole.
7. a kind of permeability apparatus that can simulate waterpower gradient magnitude and direction dynamic changing condition according to claim 2,
It is characterized in that：The upper porous disc（6）, lower porous disc（7）It is all the organic glass disk for being covered with uniform permeable hole, in porous disc
With test sample（14）Plasticine is smeared along porous disc edge in the side of contact.
8. a kind of permeability apparatus that can simulate waterpower gradient magnitude and direction dynamic changing condition according to claim 2,
It is characterized in that：The runing rest（11）Including supporting annulus（29）With two supporting rods（30）；Support annulus（29）Setting three
A uniformly distributed bolt hole, is made, supporting rod of steel plate（30）It is that outer surface is evenly distributed with tooth socket and tooth socket is consistent with rod axis direction
Gear stick, be made of steel rod elements, support annulus（29）Across fastening bolt（10）It is sleeved on lucite tube（8）Interposition
It puts, fastening bolt is fixed on by nut（10）On, circular planes and lucite tube（8）Axis is vertical；Two supporting rods
（30）Axial symmetry is arranged in annulus（29）Both sides are simultaneously welded on annulus（29）On edge, by supporting rod（30）It is placed on fixing bracket
（12）Corresponding card slot（33）On, supporting rod（30）In card slot（33）In can be freely rotated, lucite tube（8）With supporting rod
（30）Rotation and adjust angle of inclination, so as to fulfill the change in hydraulic gradient direction, in card slot（33）Top sets bayonet
（34）, pass through bayonet（34）In card（35）It is stuck in supporting rod（30）Tooth socket on, limit supporting rod（30）Rotation.
9. a kind of permeability apparatus that can simulate waterpower gradient magnitude and direction dynamic changing condition according to claim 2,
It is characterized in that：The fixing bracket（12）The riser being placed in parallel including two pieces（31）With two fixing bolts（32）, two pieces vertical
Plate（31）It is made of steel plate, two bolts hole is symmetrical arranged with vertical axis one piece of riser bottom, another piece of riser is in correspondence
Position sets bolt hole, fixing bolt（32）Across the corresponding bolt hole of two pieces of risers, by nut by bolt（32）With riser
（31）It is fixed, along riser（31）Vertical axis is away from setting corresponding card slot at a certain distance from the top of riser（33）, in card slot（33）
It is arranged above bayonet（34）, in bayonet（34）Upper installation card made of steel plate（35）, card（35）It may be stuck in supporting rod
（30）On tooth socket.
10. a kind of permeability apparatus that can simulate waterpower gradient magnitude and direction dynamic changing condition according to claim 1,
It is characterized in that：It is described to supply bucket（21）With dust-collecting bucket（22）It is both provided with lifting component（28）, by lifting component（28）Adjustment
For bucket（21）With dust-collecting bucket（22）Relative altitude, to change test sample（14）Both sides head pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721717202.3U CN207472734U (en) | 2017-12-11 | 2017-12-11 | A kind of permeability apparatus that can simulate waterpower gradient magnitude and direction dynamic changing condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721717202.3U CN207472734U (en) | 2017-12-11 | 2017-12-11 | A kind of permeability apparatus that can simulate waterpower gradient magnitude and direction dynamic changing condition |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108007840A (en) * | 2017-12-11 | 2018-05-08 | 合肥工业大学 | A kind of permeability apparatus that can simulate waterpower gradient magnitude and direction dynamic changing condition |
| CN111474047A (en) * | 2020-05-09 | 2020-07-31 | 合肥工业大学 | Test method for verifying hydrodynamic pressure in bank slope soil body |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108007840A (en) * | 2017-12-11 | 2018-05-08 | 合肥工业大学 | A kind of permeability apparatus that can simulate waterpower gradient magnitude and direction dynamic changing condition |
| CN111474047A (en) * | 2020-05-09 | 2020-07-31 | 合肥工业大学 | Test method for verifying hydrodynamic pressure in bank slope soil body |
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