CN108593517A - A kind of measuring device and its method of stickiness soil body osmotic coefficient - Google Patents
A kind of measuring device and its method of stickiness soil body osmotic coefficient Download PDFInfo
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- CN108593517A CN108593517A CN201810340149.2A CN201810340149A CN108593517A CN 108593517 A CN108593517 A CN 108593517A CN 201810340149 A CN201810340149 A CN 201810340149A CN 108593517 A CN108593517 A CN 108593517A
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- fistulae
- sieve
- pressure
- bushing pipe
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- 239000002689 soil Substances 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000003204 osmotic effect Effects 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 210000000013 bile duct Anatomy 0.000 claims description 22
- 230000005540 biological transmission Effects 0.000 claims description 14
- 230000008595 infiltration Effects 0.000 claims description 14
- 238000001764 infiltration Methods 0.000 claims description 14
- 238000012856 packing Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 10
- 238000005553 drilling Methods 0.000 claims description 6
- 239000004576 sand Substances 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 5
- 238000007873 sieving Methods 0.000 claims description 5
- 239000011083 cement mortar Substances 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 239000008187 granular material Substances 0.000 claims description 4
- 230000035515 penetration Effects 0.000 claims description 4
- 239000011229 interlayer Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 238000000691 measurement method Methods 0.000 claims description 2
- 238000012360 testing method Methods 0.000 abstract description 13
- 238000005259 measurement Methods 0.000 abstract description 4
- 230000003068 static effect Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 5
- 230000002706 hydrostatic effect Effects 0.000 description 5
- 206010000060 Abdominal distension Diseases 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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
- G01N15/0826—Investigating permeability by forcing a fluid through a sample and measuring fluid flow rate, i.e. permeation rate or pressure change
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- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of measuring devices and its method of stickiness soil body osmotic coefficient.It includes detector, bushing pipe, sieve fistulae, bottom tray, air valve, compressor, direction valve, pressure gauge, extension bar, rope；Sieve fistulae is sleeved in bushing pipe, bottom tray is mounted in the lower end of sieve fistulae, detector is placed in bushing pipe, positioned at the upper end of sieve fistulae, pressure gauge, air valve, direction valve, compressor are connected in turn by gas-guide tube on detector, on the push rod of detector, rope ties up on the change-over switch on detector extension bar.The present invention is relative to conventional measuring apparatus, without drawing water or water filling device, automatic Regulation is carried out using balancing pipeline, realize water pressure static balance before surveying, time of measuring can substantially be shortened, pressure sensor and recorder are used simultaneously, water pressure is recorded in real time and changes with time process, improve the accuracy of test.The device characteristic is easy for carrying, easy to operate, and measurement efficiency is high.
Description
Technical field
The present invention relates to geotechnical engineering Rock And Soil parameter measurement field more particularly to a kind of surveys of stickiness soil body osmotic coefficient
Measure device and its application method.
Background technology
Infiltration coefficient is the important indicator for weighing Rock And Soil water permeable ability, it is general using scene draw water method or water flood into
Row measures.The measurement needs of both methods draw water or water filling, and test technology is complicated, and the manpower and materials needed are more, and glutinous
Property soil body osmotic coefficient it is low, hydraulic pressure dissipate need time it is long, cause the corresponding testing time longer, engineering practice brought
It is inconvenient.Further, since the variability of infiltration coefficient, the infiltration coefficient of different parts is varied from, and draw water method or water flood survey
Amount range is big, and obtained infiltration coefficient is the mean value of the infiltration coefficient in entire measurement range, can not reflect infiltration coefficient not
Uniformity.With the development of science and technology, the extensive use of sensor, is also to adapt to using pressure sensor and digital processing technology
In the development of modern technologies.
Invention content
The purpose of the invention is to overcome the shortcomings of existing test equipment, stickiness soil body penetration system is quickly tested for scene
Number, provides a kind of measuring device and its method of stickiness soil body osmotic coefficient.
A kind of measuring device of stickiness soil body osmotic coefficient includes detector, bushing pipe, sieve fistulae, bottom tray, air valve, compression
Machine, direction valve, pressure gauge, extension bar, rope；Sieve fistulae is sleeved in bushing pipe, and bottom tray is mounted in the lower end of sieve fistulae, inspection
It surveys instrument to be placed in bushing pipe, is located at the upper end of sieve fistulae, pressure gauge, air valve, direction valve, compressor are connected successively by gas-guide tube
It is connected on detector, on the push rod of detector, rope ties up on the change-over switch on detector extension bar.
Detector therein include pressure sensor, end cap, balancing pipeline, interior bile duct, rubber pneumatic bag, flange, lock ring circle,
Gasket, anti-return nut, change-over switch, lip-type packing, push rod, recorder, air inlet pipe, sealing nut, washer, sealing-plug,
Transmission line, O-ring seal；Pressure sensor is mounted on end cap, is connected with recorder by transmission line, and transmission line passes through method
Sealing-plug is housed, interior bile duct pricks rubber pneumatic bag there are two lock ring circle at the both ends of interior bile duct in rubber pneumatic bag in blue hole
Tightly on interior bile duct, flange, end cap are attached separately to two ports up and down of interior bile duct, on the external cylindrical surface of flange and end cap
Equipped with a pair of of O-ring seal, a lip-type packing is respectively arranged in the centre bore of flange and end cap, the both ends of balancing pipeline are logical
It crosses two anti-return nuts and is separately fixed at flange, on end cap, gasket is respectively arranged at mutual contact surface, in balancing pipeline
Upper port is equipped with change-over switch, and push rod is by the centre bore of flange and end cap, and through up and down, air inlet pipe passes through sealing nut, pad
Circle is mounted on flange, and outside, another port is put in interior bile duct Single port.
Preferably, bushing pipe, sieve fistulae and bottom tray are first assembled into pressure pipe component before measuring；Liner sleeve is in sieve fistulae
Outside, bottom tray is interference fitted mounted in the bottom end of sieve fistulae, the endoporus formation of bottom tray and sieve fistulae, can bear larger thrust
Without deviating from；When assembled pressure pipe component is put into the hole being drilled, as long as applying certain pressure to bushing pipe, bushing pipe pushes bottom
Pallet, bottom tray drive sieve fistulae to downlink, and pressure pipe component can enter the predetermined depth in hole；There is aperture point on sieve fistulae
On the cylindrical surface of pipe, water can pass through cloth, but big sand grains can't pass.
Steps are as follows for the application method of the measuring device of the stickiness soil body osmotic coefficient：
1) drill pressure pipe：It first has to bushing pipe, sieve fistulae and bottom tray being assembled into pressure pipe component, in the soil body that needs measure
Pressure pipe component is pressed into the hole being drilled by internal drilling, until scheduled depth, bushing pipe is returned and is carried, is returned and is proposed of length no more than sieve leakage
The length of pipe, fixes liner position, and coarse sand granule is backfilled around the sieve fistulae to drill to original, and backfill cement mortar seals around bushing pipe
It is stifled；
2) detector is in place：The detector for being connected to inflation system is put into pre-buried good bushing pipe, is placed on sieve fistulae,
Compressor is opened, is inflated to detector, rubber pneumatic bag is gradually opened, and the gap between the air bag and bushing pipe of abdominal distension blocks, and makes inspection
It surveys instrument position below and forms closed cavity, until pressure gauge reading reaches predetermined value, shut down compressor；
3) water level restores：After being inflated to detector, wait quietly 3~5 minutes, waits for that impacted water level restores, make detector
The hydraulic balance of upper and lower end face, then pulls rope, and change-over switch is made to be closed；
4) push rod pressurizes：Wait quietly again 3~5 minutes, after, with after infiltration interlayer hydraulic balance, promotion push rod pushes away in sieve fistulae
Bar is pressed down against the water in sieve fistulae, and the water of compression is by sieving fistulae to soil body penetration；
5) data processing：The hydraulic pressure force value measured is transferred to recorder, recorder storage pressure by pressure sensor in real time
Force value, and according to preset algorithm, calculate the infiltration coefficient for being tested the soil body.
The present invention provides a kind of measuring device of stickiness soil body osmotic coefficient, and relative to conventional test equipment, feature is
Measure quick, portable devices.Present invention eliminates water filling devices, it is no longer necessary to draw water or water filling in test point, simplify test
Process；Automatic Regulation is carried out using balancing pipeline, realizes water pressure static balance before surveying；Refer to pressure sensor and record
Instrument records water pressure and changes with time process, improves the accuracy of test in real time；Using push rod small area pressurization, make
The variation range for obtaining water pressure in test process is small, and water pressure can dissipate within a short period of time, shorten the testing time.Pass through
To blocking and pressurizeing etc., functions integrate, and equipment is simple, easy to carry, easy to operate more efficient.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of the measuring device of stickiness soil body osmotic coefficient；
Fig. 2 is detector structural schematic diagram；
Fig. 3 is pressure pipe component diagram；
Fig. 4 is the cross-sectional view of flange；
In figure：Detector 1, sieve fistulae 3, bottom tray 4, air valve 5, compressor 6, direction valve 7, pressure gauge 8, lengthens bushing pipe 2
Bar 9, rope 10, pressure sensor 11, end cap 12, balancing pipeline 13, interior bile duct 14, rubber pneumatic bag 15, flange 16, lock ring circle
17, gasket 18, anti-return nut 19, change-over switch 20, lip-type packing 21, push rod 22, recorder 23, air inlet pipe 24, sealing
Nut 25, washer 26, sealing-plug 27, transmission line 28, O-ring seal 29.
Specific implementation mode
As shown in Figure 1, a kind of measuring device of stickiness soil body osmotic coefficient includes detector 1, bushing pipe 2, sieve fistulae 3, bottom
Pallet 4, air valve 5, compressor 6, direction valve 7, pressure gauge 8, extension bar 9, rope 10；Sieve fistulae 3 is sleeved in bushing pipe 2, bottom
Pallet 4 is placed on mounted in the lower end of sieve fistulae 3, detector 1 in bushing pipe 2, is located at the upper end of sieve fistulae 3, pressure gauge 8, gas
Valve 5, direction valve 7, compressor 6 are connected in turn by gas-guide tube on detector 1, and extension bar 9 is mounted on the push rod of detector 1,
Rope 10 ties up on the change-over switch 20 of detector 1.
As shown in Fig. 2, detector includes pressure sensor 11, end cap 12, balancing pipeline 13, interior bile duct 14, rubber pneumatic bag
15, flange 16, lock ring circle 17, gasket 18, anti-return nut 19, change-over switch 20, lip-type packing 21, push rod 22, recorder
23, air inlet pipe 24, sealing nut 25, washer 26, sealing-plug 27, transmission line 28, O-ring seal 29；Pressure sensor 11 is installed
On end cap 12, it is connected with recorder 23 by transmission line 28, sealing-plug 27 is housed in the hole of the process flange 16 of transmission line 28,
Interior bile duct 14 tightens rubber pneumatic bag 15 in interior bile duct there are two lock ring circle 17 at the both ends of interior bile duct 14 in rubber pneumatic bag 15
On 14, flange 16, end cap 12 are attached separately to two ports up and down of interior bile duct 14, on the external cylindrical surface of flange 16 and end cap 12
It is respectively arranged with a pair of of O-ring seal 29, a lip-type packing 21, equilibrium water are respectively arranged in the centre bore of flange 16 and end cap 12
The both ends of pipe 13 are separately fixed at flange 16, on end cap 12 by two anti-return nuts 19, are respectively arranged at mutual contact surface
Gasket 18 is equipped with change-over switch 20, the center that push rod 22 passes through flange 16 and end cap 12 in the upper port of balancing pipeline 13
Hole, through up and down, air inlet pipe 24 is mounted on by sealing nut 25, washer 26 on flange 16, and Single port outside, stretch by another port
Into in interior bile duct 14.
As shown in figure 3, bushing pipe 2, sieve fistulae 3 and bottom tray 4 are first assembled into pressure pipe component before measuring；Liner sleeve is sieving
Outside fistulae 3, bottom tray 4 is mounted in the bottom end of sieve fistulae 3, when pressure pipe component is put into the hole being drilled, as long as applying certain pressure
To bushing pipe 2, bushing pipe 2 pushes bottom tray 4, bottom tray 4 to drive sieve fistulae 3 to downlink, and pressure pipe component can enter the pre- of hole
Depthkeeping degree.The internal diameter of bushing pipe 2 is slightly larger than the outer diameter of sieve fistulae 3, and length should be equal to drilling depth, and sieve fistulae 3 is as sieve
There is aperture to be distributed on the cylindrical surface of pipe, water can pass through, but big sand grains can't pass, and bottom tray 4 has boss
Disk part by performing, boss are packed into the end of sieve fistulae 3, are formed and are interference fitted with the endoporus of sieve fistulae 3, can bear larger push away
Power is without deviating from.
End cap 12 is the disk part by performing with convex edge, and two deep gouges are equipped on its external cylindrical surface, are for placing O
Type sealing ring 29, after ensureing that end cap 12 is packed into interior bile duct 14, the contact surface of end cap 12 and interior bile duct 14 seals, i.e., air tight
Also water-tight；It is set in the disk of end cap 12 there are three through-hole, two of which through-hole is for installing 11 peace of pressure sensor
Hengshui pipe 13, be equipped with gasket 18 in the position of installation, ensure it is air tight water-tight, the other is centre bore, be for
Push rod 22 is installed, in the port of centre bore, is equipped with deep gouge, is for placing lip-type packing 21, to ensure that push rod 22 is logical
Cross 12 centre bore of end cap, i.e., it is air tight also water-tight.
Balancing pipeline 13 is a vertically-mounted straight tube, its upper end is mounted on flange 16, and lower end is mounted on end
It on lid 12, is fixed respectively by two anti-return nuts 19, in the upper port of balancing pipeline 13, change-over switch 20, Ke Yigen is housed
According to the flow for needing control to flow through balancing pipeline 13, balancing pipeline 13 and change-over switch 20 together constitute hydraulic pressure up and down and adjust automatically
Balance system is saved, there are two effects herein：One is overvoltage release, is inflated when to detector 1,15 abdominal distension of rubber pneumatic bag
Meanwhile certain pressure will produce to 1 lower part water body of detector, excessive pressure can upwards be discharged by balancing pipeline 13
Fall, effect is second is that adjusting water level can pass through change-over switch 20 if water level is not high enough before measuring or is not restored to original water level
To adjust.
Interior bile duct 14 is stainless steel thin-wall pipe, is the main framing of detector, plays a part of forming a connecting link, in the upper of it
End is equipped with flange 16, and lower end is equipped with end cap 12, is wrapped with rubber pneumatic bag 15 in its outside, there is several circles on its cylindrical surface
Through-hole, through-hole are the necessary channels as the gas flow rubber pneumatic bag 15 come in by air inlet pipe.
As shown in figure 4, being the sectional view of flange 16, flange 16 and end cap 12 are much like, shape size all, it
On external cylindrical surface, there is the deep gouge of two placement O-ring seals 29, in the upper port of centre bore, is equipped with dress lip-type packing 21
Heavy to cheat, there are one the through-holes of dress balancing pipeline 13 in disk；Be a difference in that in the disk of flange 16 it is another there are two through-hole,
In an aperture be for by transmission line 22, sealing-plug 27 is placed in hole, another aperture is for installing air inlet
Pipe 24, air inlet pipe 24 is fixed on flange 16 by sealing nut 25 and washer 26, and ensure that contact surface is air tight water-tight.
Recorder 23 is the electronic component for having storage and read functions, is connected with pressure sensor 11 by transmission line 28
It connects, pressure sensor 11 by the pressure real-time Transmission sensed to recorder 23, according to preset algorithm advise by recorder 23
Then, the information that processing transmission comes, and the information data recording handled well is stored in the memory card of recorder 23, in case transferring
Copy.
Push rod 22 is hollow stainless steel tube closed at both ends, is mounted in the centre bore of end cap 12 and flange 16, outside cylinder
Face is directly contacted with a pair of of lip-type packing 21, can be moved up and down under external force.In use, it can be according to actual needs
In the upper end adjunction extension bar 9 of push rod 22.
Steps are as follows for the measurement method of the measuring device of stickiness soil body osmotic coefficient：
1) drill pressure pipe：It first has to bushing pipe 2, sieve fistulae 3 and bottom tray 4 being assembled into pressure pipe component, be measured in needs
Soil body internal drilling, by the hole that is drilled of pressure pipe component indentation, until scheduled depth, bushing pipe 2 is returned and is carried, return carry it is of length no more than
The length for sieving fistulae 3, fixes the position of bushing pipe 2, and coarse sand granule, the backfill of 2 surrounding of bushing pipe are backfilled to 3 surrounding of sieve fistulae of original drilling
Cement mortar blocks；
2) detector is in place：The detector 1 for being connected to inflation system is put into pre-buried good bushing pipe 2, sieve fistulae 3 is placed on
On, compressor 6 is opened, is inflated to detector 1, rubber pneumatic bag 15 is gradually opened, the gap between detector 1 and bushing pipe 2 is blocked up
Extremely, so that 1 position below of detector is formed closed cavity, until the reading of pressure gauge 8 reaches predetermined value, shut down compressor 6；
3) water level restores：After being inflated to detector 1, wait quietly 3~5 minutes, waits for that impacted water level restores, make detector
Then the hydraulic balance of 1 upper and lower end face pulls rope 10, change-over switch 20 is made to be closed；
4) push rod pressurizes：Wait quietly again 3~5 minutes, after in sieve fistulae 3 and after infiltration interlayer hydraulic balance, push push rod 22,
Push rod 22 is pressed down against the water in sieve fistulae 3, and the water of compression is by sieving fistulae 3 to soil body penetration；
5) data processing：The hydraulic pressure force value measured is transferred to recorder 23, recorder 23 by pressure sensor 11 in real time
Pressure value is stored, the infiltration coefficient for being tested the soil body is calculated.
The operation principle of the measuring device of the stickiness soil body osmotic coefficient：The measuring device is put into the hole being drilled, to
Coarse sand granule is backfilled around it, cement mortar blocks, makes not leak around its device；After detector is placed into position appropriate, pass through
It is inflated into detector, rubber pneumatic bag abdominal distension blocks bushing pipe, and detector lower part is made to form the test chamber of isolation.Pass through push rod
It moves downward, excess hydrostatic pressure is generated in closed test chamber, under excess hydrostatic pressure effect, water is gradually oozed to the periphery soil body
It dissipates thoroughly, the speed for permeating dissipation depends on the water permeable ability of the soil body.Dissipate with dampening infiltration around, excess hydrostatic pressure by
Decrescence small, pressure sensor records the change procedure of this excess hydrostatic pressure, obtains closed test chamber excess hydrostatic pressure and becomes at any time
The curve of change can be used for calculating the infiltration coefficient of the soil body.
Claims (4)
1. a kind of measuring device of stickiness soil body osmotic coefficient includes detector (1), bushing pipe (2), sieve fistulae (3), bottom tray
(4), air valve (5), compressor (6), direction valve (7), pressure gauge (8), extension bar (9) and rope (10)；Fistulae (3) is sieved to be set with
In bushing pipe (2), bottom tray (4) is placed on mounted in the lower end of sieve fistulae (3), detector (1) in bushing pipe (2), is located at sieve leakage
The upper end of (3) is managed, pressure gauge (8), air valve (5), direction valve (7), compressor (6) are connected to detector in turn by gas-guide tube
(1) on, on the push rod of detector (1), rope (10) ties up on the change-over switch of detector (1) extension bar (9).
2. the measuring device of stickiness soil body osmotic coefficient as described in claim 1, feature is detector (1) packet
Include pressure sensor (11), end cap (12), balancing pipeline (13), interior bile duct (14), rubber pneumatic bag (15), flange (16), lock ring
Enclose (17), gasket (18), anti-return nut (19), change-over switch (20), lip-type packing (21), push rod (22), recorder
(23), air inlet pipe (24), sealing nut (25), washer (26), sealing-plug (27), transmission line (28) and O-ring seal (29)；
Interior bile duct (14) is in rubber pneumatic bag (15), and at the both ends of interior bile duct (14), there are two lock ring circles (17) by rubber pneumatic bag
(15) it tightens on interior bile duct (14), flange (16), end cap (12) are attached separately to two ports up and down of interior bile duct (14), pressure
In sensor (11) installation on the end cap (12), it is connected with recorder (23) by transmission line (28), transmission line (28) passes through method
Sealing-plug (27) is housed in the hole of blue (16), a pair of O-shaped sealing is respectively arranged on the external cylindrical surface of flange (16) and end cap (12)
It encloses (29), a lip-type packing (21) is respectively arranged in the centre bore of flange (16) and end cap (12), balancing pipeline (13)
Both ends are separately fixed at flange (16), on end cap (12) by two anti-return nuts (19), and are filled at mutual contact surface
There are gasket (18), the upper port in balancing pipeline (13) that change-over switch (20) is housed, push rod (22) passes through flange (16) and end
The centre bore for covering (12), through up and down, air inlet pipe (24) is mounted on by sealing nut (25), washer (26) on flange (16),
Outside, another port is put in interior bile duct (14) air inlet pipe (24) Single port.
3. the measuring device of stickiness soil body osmotic coefficient as described in claim 1, feature are, bottom tray (4) is leaked with sieve
The endoporus for managing (3) forms interference fit, has aperture to be distributed on the cylindrical surface of pipe on sieve fistulae (3).
4. the measurement method of the measuring device of stickiness soil body osmotic coefficient described in a kind of claim 2, it is characterised in that step is such as
Under：
1) drill pressure pipe：It first has to bushing pipe (2), sieve fistulae (3) and bottom tray (4) being assembled into pressure pipe component, is needing to measure
Soil body internal drilling, when assembled pressure pipe component is put into the hole being drilled, apply pressure to bushing pipe (2), bushing pipe (2) pushes
Bottom tray (4), bottom tray (4) drive sieve fistulae (3) to return until scheduled depth, bushing pipe (2) is returned and is carried to downlink and put forward length
No more than the length of sieve fistulae (3), the position of bushing pipe (2) is fixed, coarse sand granule is backfilled to sieve fistulae (3) surrounding of original drilling,
Backfill cement mortar blocks around bushing pipe (2)；
2) detector is in place：The detector (1) for being connected to inflation system is put into pre-buried good bushing pipe (2), sieve fistulae is placed on
(3) on, compressor (6) is opened, is inflated to detector (1), rubber pneumatic bag (15) is gradually opened, by detector (1) and bushing pipe (2)
Between gap block, so that detector (1) position below is formed closed cavity, until pressure gauge (8) reading reach predetermined
Value, shuts down compressor (6)；
3) water level restores：After being inflated to detector (1), wait quietly 3~5 minutes, waits for that impacted water level restores, make detector
(1) then the hydraulic balance of upper and lower end face pulls rope (10), change-over switch (20) is made to be closed；
4) push rod pressurizes：Wait quietly again 3~5 minutes, after in sieve fistulae (3) and after infiltration interlayer hydraulic balance, push push rod (22),
Push rod (22) is pressed down against the water in sieve fistulae (3), and the water of compression is by sieving fistulae (3) to soil body penetration；
5) data processing：The hydraulic pressure force value measured is transferred to recorder (23), recorder by pressure sensor (11) in real time
(23) pressure value is stored, the infiltration coefficient for being tested the soil body is calculated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810340149.2A CN108593517B (en) | 2018-04-16 | 2018-04-16 | Device and method for measuring permeability coefficient of viscous soil body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810340149.2A CN108593517B (en) | 2018-04-16 | 2018-04-16 | Device and method for measuring permeability coefficient of viscous soil body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108593517A true CN108593517A (en) | 2018-09-28 |
| CN108593517B CN108593517B (en) | 2023-09-29 |
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ID=63622806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810340149.2A Active CN108593517B (en) | 2018-04-16 | 2018-04-16 | Device and method for measuring permeability coefficient of viscous soil body |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3158023A (en) * | 1960-06-01 | 1964-11-24 | Soletanche Soc | Method and means for measuring permeability in situ |
| JP2001132375A (en) * | 1999-10-29 | 2001-05-15 | Nishi Nippon Chishitsu Chiyousashiyo:Kk | Double tube type on-site permeability test method and device |
| CN201716256U (en) * | 2010-07-14 | 2011-01-19 | 中原工学院 | Soil mass permeability testing device |
| CN102749277A (en) * | 2012-06-30 | 2012-10-24 | 东南大学 | Device for testing performance of cohesive soil sample and testing method thereof |
| CN208060345U (en) * | 2018-04-16 | 2018-11-06 | 浙江大学 | A kind of measuring device of stickiness soil body osmotic coefficient |
-
2018
- 2018-04-16 CN CN201810340149.2A patent/CN108593517B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3158023A (en) * | 1960-06-01 | 1964-11-24 | Soletanche Soc | Method and means for measuring permeability in situ |
| JP2001132375A (en) * | 1999-10-29 | 2001-05-15 | Nishi Nippon Chishitsu Chiyousashiyo:Kk | Double tube type on-site permeability test method and device |
| CN201716256U (en) * | 2010-07-14 | 2011-01-19 | 中原工学院 | Soil mass permeability testing device |
| CN102749277A (en) * | 2012-06-30 | 2012-10-24 | 东南大学 | Device for testing performance of cohesive soil sample and testing method thereof |
| CN208060345U (en) * | 2018-04-16 | 2018-11-06 | 浙江大学 | A kind of measuring device of stickiness soil body osmotic coefficient |
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| Publication number | Publication date |
|---|---|
| CN108593517B (en) | 2023-09-29 |
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