CN105547953B - A kind of rock sample device for testing permeability coefficient - Google Patents
A kind of rock sample device for testing permeability coefficient Download PDFInfo
- Publication number
- CN105547953B CN105547953B CN201510899751.6A CN201510899751A CN105547953B CN 105547953 B CN105547953 B CN 105547953B CN 201510899751 A CN201510899751 A CN 201510899751A CN 105547953 B CN105547953 B CN 105547953B
- Authority
- CN
- China
- Prior art keywords
- rock sample
- porous disc
- head cover
- stem
- tail portion
- 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.)
- Active
Links
- 239000011435 rock Substances 0.000 title claims abstract description 90
- 238000012360 testing method Methods 0.000 title claims abstract description 58
- 230000035699 permeability Effects 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 230000008595 infiltration Effects 0.000 claims abstract description 22
- 238000001764 infiltration Methods 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 239000004575 stone Substances 0.000 claims abstract description 20
- 239000012528 membrane Substances 0.000 claims abstract description 11
- 230000000740 bleeding effect Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 239000004927 clay Substances 0.000 claims description 2
- 238000009738 saturating Methods 0.000 claims description 2
- 239000000523 sample Substances 0.000 description 64
- 238000000034 method Methods 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000012488 sample solution Substances 0.000 description 1
- 238000012956 testing procedure 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
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention provides a kind of rock sample device for testing permeability coefficient, including at least test box, positioned at the test stem porous disc of box cavity and tail portion porous disc, test box cavity is divided into intake antrum, rock sample chamber and infiltration water cavity successively by stem porous disc and tail portion porous disc, water inlet is connected with intake antrum, water outlet is connected with infiltration water cavity, intake antrum cavity wall is equipped with the drain valve connected with intake antrum, and transparent windows are equipped in the cavity wall of rock sample chamber；The waterproof sealing membrane to match with rock sample side surface is equipped in rock sample chamber, stem porous disc, waterproof sealing membrane and tail portion porous disc form seepage channel；Stem porous disc and tail portion porous disc are made of permeable stone and elastic sealing strip, and the permeable hole of permeable stone is by being located at the macropore at middle part and being formed around the permeable hole that the aperture being distributed in around macropore forms or is uniformly distributed and is interconnected by 2 or more；The apparatus structure is simple, test result is accurate, suitable for template rock sample of the inside with crack.
Description
Technical field
The present invention relates to a kind of rock sample device for testing permeability coefficient, belong to seepage tester device technical field.
Background technology
Infiltration coefficient is an important physical parameter of rock mass.The infiltration coefficient of rock sample how is accurately measured, and is divided
The process of osmosis of analysis research rock sample has great significance for the multi- scenarios method research of rock mass.However, in long-term natural work
With and artificial construction disturbance under the conditions of, various cracks are thick in rock mass, form sufficiently complex seepage environment, indoor rock sample
The infiltration coefficient of infiltration coefficient and engineering site rock mass usually has bigger difference.
It is macro can only to measure rock sample mostly for cylindrical standard rock sample for existing major part rock sample permeability coefficient tester device
The infiltration coefficient of sight, in addition, the crack external morphology for rock sample can not be observed, it is impossible to determine crack to rock sample infiltrative shadow
Ring, also can not observation analysis rock sample infiltration evolution.
Form of the existing major part permeability test porous disc for uniformly distributed hole, the infiltration for the rock sample containing crack
, there is the possibility for blocking or blocking seepage channel, have larger impact to the measurement result of infiltration coefficient in experiment.
Invention content
It is an object of the invention to overcome the deficiencies in the prior art and provide a kind of simple in structure, easy to use, practicability
Strong rock sample device for testing permeability coefficient can measure the infiltration coefficient of template rock sample.
Technical solution is a kind of rock sample device for testing permeability coefficient, including at least survey used by realizing the object of the invention
Case is tried, positioned at the stem porous disc and tail portion porous disc of test box cavity and with the water inlet that connects of test box cavity and going out
The mouth of a river, the test box is horizontal positioned, and stem porous disc is fixed on the front side of test box cavity, and tail portion porous disc is fixed on test
On rear side of box cavity, test box cavity is divided into intake antrum, rock sample chamber and infiltration successively by stem porous disc and tail portion porous disc
Water cavity, water inlet is connected with intake antrum, water outlet is connected with infiltration water cavity, and intake antrum cavity wall is let out equipped with what is connected with intake antrum
Water valve is equipped with transparent windows in the cavity wall of rock sample chamber；The waterproof sealing to match with rock sample side surface is equipped in rock sample chamber
Film, the shape of stem porous disc match with the shape of tail portion porous disc with the front end face of rock sample with rear end face respectively, and stem is saturating
Water plate, waterproof sealing membrane and tail portion porous disc form seepage channel；The stem porous disc and tail portion porous disc are by permeable stone
It is formed with around the elastic sealing strip for being fixed on permeable stone side, the permeable hole of permeable stone is by being located at the macropore at middle part and surrounding
The permeable hole that the aperture around macropore forms or is uniformly distributed and is interconnected by 2 or more is distributed in form.
The test box is made of head cover, bottom plate, stem top plate, tail portion top plate, front side board and back side panel, and head cover is equipped with
The air bleeding valve connected with intake antrum.
The side of head cover is equipped with 2 with upper top cover limiter, and head cover limiter is fixed on survey by head cover limiter bolt
Box top is tried, the lower surface of head cover is equipped with head cover rubber layer.
Head cover is equipped with head cover handle.
Head cover rubber layer is bonded and fixed on the lower surface of head cover.
Transparent windows are mounted in the cavity wall of the rock sample chamber both sides.
The elastic sealing strip is rubber strip or clay, and the waterproof sealing membrane is polyacrylic water-proof material.
As shown from the above technical solution, rock sample device for testing permeability coefficient provided by the invention, main body lateral arrangement are compared
In the existing infiltration instrument being vertically arranged, influence of the gravity to rock sample internal crack seepage flow situation can be eliminated；In test box
Chamber is divided into the intake antrum for water inlet, for placing rock sample and oozed successively by stem porous disc and tail portion porous disc
The rock sample chamber of experiment and the infiltration water cavity for collecting seepage water are flowed, transparent windows are installed in the cavity wall of rock sample chamber, can be led to
Infiltration evolution and rule that transparent windows observe rock sample in real time are crossed, is had more intuitively for the penetration property of rock sample
Solution can be directed to complete rock sample and rock sample containing crack and carry out permeability test respectively, by the observation of organic glass observation window and be surveyed
The comparison of infiltration coefficient is obtained, effect of the rock sample crack played in process of osmosis can be fully researched and analysed, can also be filled out for difference
The rock sample for filling state or the crack containing different occurrences carries out permeability test respectively, by the observation of organic glass observation window and measured
The comparison of infiltration coefficient can fully research and analyse influence of the crack occupied state to rock sample permeance property or research and analyse different productions
Influence of the shape crack in rock sample process of osmosis.
In rock sample device for testing permeability coefficient provided by the invention, stem porous disc and tail portion porous disc by permeable stone and
It is formed around the elastic sealing strip for being fixed on permeable stone side, between elastic sealing strip closing permeable stone side and test chamber interior wall
Gap, cooperation positioned at head cover lower surface on head cover rubber layer, with rock sample be in close contact multiple tracks elastic sealing layer formed
Closed, controllable seepage environment, is equipped with the waterproof sealing membrane to match with rock sample side surface in rock sample chamber, stem porous disc it is outer
Shape and the shape of tail portion porous disc match respectively with the front end face of rock sample with rear end face, it is ensured that by stem porous disc, anti-watertight
Sealer and tail portion porous disc form seepage channel and are bonded completely with the rock sample being placed in one so that water only enters simultaneously from rock sample head end
It is only oozed out from rock sample tail end so that water outlet hydraulic pressure remains 0MPa, the accuracy of guarantee test parameters obtained；It is permeable
The permeable hole of stone is made of the macropore and the circular aperture being distributed in around macropore for being located at middle part or is uniformly distributed by 2 or more
And interconnected permeable hole is formed, and above two structure can effectively prevent permeable hole system to lead to containing crack rock sample seepage flow
The blocking or blocking in road.
Compared with prior art, rock sample device for testing permeability coefficient provided by the invention is simple in structure, easy to use, practical
Property is strong, and test result is accurate, is applicable not only to cylindrical standard rock sample, and suitable for rock property practical natural environment
It relatively coincide, the internal template rock sample with crack.
Description of the drawings
Fig. 1 is the structure diagram of rock sample device for testing permeability coefficient provided by the invention.
Fig. 2 is the structure diagram of stem porous disc.
Fig. 3 is the structure diagram of tail portion porous disc.
Wherein, 1- water outlets, 2- fastening bolts, 3- tail portions top plate, 4- tail portions porous disc, 5- tail portions rubber strip, 6- are transparent
Observation window, 7- head cover limiter bolts, 8- head cover limiters, 9- head cover handles, 10- head cover rubber layers, 11- air bleeding valves, 12- tops
Lid, 13- stem rubber strips, 14- stem porous discs, 15- intake antrums, 16- test boxs, 17- drain valves, 18- water inlets, 19- are first
Portion's permeable stone, 20- tail portions permeable stone, 21- macropores, 22- apertures, 23- permeable holes.
Specific embodiment
The present invention is illustrated in detail with reference to the accompanying drawings and examples, present disclosure is not limited to following
Embodiment.
Rock sample device for testing permeability coefficient provided by the invention, structure is as shown in Figure 1, main body is horizontal positioned test
Case 16 and the stem porous disc 14 being fitted into and tail portion porous disc 4, test box 16 are fixed by being connected by fastening bolt 2
Head cover 12, bottom plate, stem top plate, tail portion top plate 3, front side board and back side panel are formed, and the side of head cover is limited equipped with 2 with upper top cover
Position device 8, head cover limiter 8 is L-shaped, is fixed on test box top, and the both ends of head cover limiter pass through head cover limiter spiral shell respectively
Bolt 7 is connect with head cover 12 and sidewall paneling (stem top plate, tail portion top plate 3, front side board and back side panel), is bonded on the lower surface of head cover
Head cover rubber layer 10 is fixed with, head cover is equipped with head cover handle 9；Stem porous disc 14 is fixed on the front side of test box cavity, tail
Portion's porous disc 4 is fixed on rear side of test box cavity, and test box cavity is divided into successively by stem porous disc and tail portion porous disc
Intake antrum 15, rock sample chamber and infiltration water cavity, are mounted on transparent windows 6, the position of transparent windows 6 in front side board and back side panel
Put, transparent windows 6 preferred pmma material opposite with rock sample chamber；
Test box 16 is equipped with water inlet 18, water outlet 1, drain valve 17 and the air bleeding valve 11 connected with its inner cavity, wherein
Water inlet 18 is fixed in stem top plate, and drain valve 17 is fixed in front side board, and air bleeding valve 11 is fixed in head cover 12, water inlet
18th, drain valve 17 is connected with 11 equal intake antrum 15 of air bleeding valve, and water outlet 1 is fixed in the top plate of tail portion and connects with infiltration water cavity
It is logical；
Referring to Fig. 2, the stem porous disc 14 is by stem permeable stone 19 and around being fixed on 19 side of stem permeable stone
Stem rubber strip 13 is formed, and the permeable hole of stem permeable stone 19 is distributed in by being located at the macropore 21 at middle part and surrounding around macropore
Aperture 22 form；Referring to Fig. 3, the tail portion porous disc 4 is by tail portion permeable stone 20 and around being fixed on 20 side of tail portion permeable stone
The tail portion rubber strip 5 on side is formed, and the permeable hole of tail portion permeable stone 20 is uniformly distributed and is interconnected by 2 or more permeable
Hole 23 is formed；The waterproof sealing membrane to match with rock sample side surface is equipped in rock sample chamber, waterproof sealing membrane is essentially to be coated on
Waterproof material on rock sample side surface, preferably gram water inspire confidence in transparent watertight diaphragm seal, and (using high-grade acrylic emulsion as base-material, addition is more
The high-performance waterproof paint that kind of auxiliary agent, filler are process through science), the shape of stem porous disc is outer with tail portion porous disc
Shape matches respectively with the front end face of rock sample with rear end face, and stem porous disc, waterproof sealing membrane and tail portion porous disc form seepage flow
Channel.
The testing procedure and principle of rock sample device for testing permeability coefficient provided by the invention be：
(1) test rock sample upper surface, lower surface, front surface, rear surface are brushed into transparent watertight diaphragm seal (preferably gram water
Inspire confidence in transparent watertight diaphragm seal) it is placed in inside test box 16, tail portion porous disc 4 and tail portion top plate 3 are put into against rock sample sequence, is twisted
Tightly fixing bolt 2, it is ensured that stem porous disc 14 and tail portion porous disc 4 are in close contact with rock sample, by head cover 12 as test box 16
Head cover limiter bolt 7 is tightened in top；
(2) rock sample closes 17 valve of discharge opening after installation is complete, opens 18 valve of water inlet, starts 15 water-filling of water cavity；
(3) it after the completion of water-filling, is tested by adjusting hydraulic pressure at water inlet 18, and records the water outlet of water outlet 1 in real time
Flow Q (mL/s)；
(4) since 1 hydraulic pressure of water outlet remains 0MPa, therefore the transverse direction of rock sample can be calculated by hydraulic pressure value P at water inlet 18
Osmotic coefficient k；
Wherein, L is rock sample length, and b is rock sample width, and h is rock sample height；
(5) after the completion of testing, drain valve 17 is opened, intake antrum 15 all after emptying, takes out rock sample, completes experiment；Pass through
Multigroup Experimental comparison can fully understand crack infiltrative influence on rock sample, convenient accurate.
Claims (7)
1. a kind of rock sample device for testing permeability coefficient, including at least test box, positioned at the stem porous disc and tail of test box cavity
Portion's porous disc and the inlet and outlet connected with test box cavity, it is characterised in that：The test box is horizontal positioned,
Stem porous disc is fixed on the front side of test box cavity, and tail portion porous disc is fixed on rear side of test box cavity, and test box cavity leads to
It crosses stem porous disc and tail portion porous disc is divided into intake antrum, rock sample chamber and infiltration water cavity successively, water inlet connects with intake antrum,
Water outlet is connected with infiltration water cavity, and intake antrum cavity wall is equipped with the drain valve connected with intake antrum, is installed in the cavity wall of rock sample chamber
There are transparent windows；The waterproof sealing membrane to match with rock sample side surface, the shape and tail of stem porous disc are equipped in rock sample chamber
The shape of portion's porous disc matches respectively with the front end face of rock sample with rear end face, and stem porous disc, waterproof sealing membrane and tail portion are saturating
Water plate forms seepage channel；The stem porous disc and tail portion porous disc are by permeable stone and around being fixed on permeable stone side
Elastic sealing strip is formed, and the permeable hole of permeable stone is by being located at the macropore at middle part and being formed around the aperture being distributed in around macropore
Or the permeable hole for being uniformly distributed and being interconnected by 2 or more is formed.
2. rock sample device for testing permeability coefficient according to claim 1, it is characterised in that：The test box is by head cover, bottom
Plate, stem top plate, tail portion top plate, front side board and back side panel are formed, and head cover is equipped with the air bleeding valve connected with intake antrum.
3. rock sample device for testing permeability coefficient according to claim 2, it is characterised in that：The side of head cover be equipped with 2 with
Upper top cover limiter, head cover limiter are fixed on by head cover limiter bolt at the top of test box, and the lower surface of head cover is equipped with
Head cover rubber layer.
4. according to the rock sample device for testing permeability coefficient described in claim 2 or claim 3, it is characterised in that：It is set on head cover
There is head cover handle.
5. rock sample device for testing permeability coefficient according to claim 3, it is characterised in that：Head cover rubber layer is bonded and fixed to
On the lower surface of head cover.
6. according to the rock sample device for testing permeability coefficient described in claim 1 or claim 3, it is characterised in that：The rock sample
Transparent windows are mounted in the cavity wall of chamber both sides.
7. rock sample device for testing permeability coefficient according to claim 1, it is characterised in that：The elastic sealing strip is rubber
Item or clay, the waterproof sealing membrane are polyacrylic water-proof material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510899751.6A CN105547953B (en) | 2015-12-07 | 2015-12-07 | A kind of rock sample device for testing permeability coefficient |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510899751.6A CN105547953B (en) | 2015-12-07 | 2015-12-07 | A kind of rock sample device for testing permeability coefficient |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105547953A CN105547953A (en) | 2016-05-04 |
| CN105547953B true CN105547953B (en) | 2018-07-10 |
Family
ID=55827295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510899751.6A Active CN105547953B (en) | 2015-12-07 | 2015-12-07 | A kind of rock sample device for testing permeability coefficient |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105547953B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110320149B (en) * | 2019-08-02 | 2021-08-03 | 西南石油大学 | Flow direction adjustable irregular rock sample high-pressure permeation device and testing method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103233441A (en) * | 2013-04-19 | 2013-08-07 | 河海大学 | Multiple embankment foundation pipeline type piping seepage deformation model and test method |
| CN104122186A (en) * | 2014-08-01 | 2014-10-29 | 山东省水利科学研究院 | Permeation corrosion testing device of flexible permeation-proof material and testing method thereof |
| CN104897539A (en) * | 2015-04-30 | 2015-09-09 | 四川大学 | Horizontal permeameter suitable for soil horizontal contact surface shearing deformation |
-
2015
- 2015-12-07 CN CN201510899751.6A patent/CN105547953B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103233441A (en) * | 2013-04-19 | 2013-08-07 | 河海大学 | Multiple embankment foundation pipeline type piping seepage deformation model and test method |
| CN104122186A (en) * | 2014-08-01 | 2014-10-29 | 山东省水利科学研究院 | Permeation corrosion testing device of flexible permeation-proof material and testing method thereof |
| CN104897539A (en) * | 2015-04-30 | 2015-09-09 | 四川大学 | Horizontal permeameter suitable for soil horizontal contact surface shearing deformation |
Non-Patent Citations (1)
| Title |
|---|
| 砂泥岩混合料各向异性渗透特性试验研究;邱珍锋;《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》;20140615(第06期);第20-21、25页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105547953A (en) | 2016-05-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105527384B (en) | A kind of grouting simulation test device and its test method | |
| CN105651677B (en) | A kind of Geotechnical Parameter property analyzer that can measure specific yield and infiltration coefficient simultaneously | |
| CN104316348B (en) | The closed soil sampler of baffle plate | |
| CN103235107A (en) | Pressure plate testing device capable of controlling suction force by negative pore water pressure | |
| CN109612910A (en) | A kind of portable pervious concrete pavement device for testing permeability coefficient and test method | |
| CN206862784U (en) | A kind of indoor Triaxial tester for testing sand slip casting setting strength | |
| CN108918390A (en) | The device and method of mud film forming and measurement mud film amounts of consolidation, air inflow | |
| CN103454684A (en) | Deep-sea simulation acoustic experiment table and using method thereof | |
| CN105547953B (en) | A kind of rock sample device for testing permeability coefficient | |
| CN209707171U (en) | A kind of depthkeeping Stratified Sampling device for deeper subsurface water monitoring | |
| CN108169100A (en) | A kind of device and assay method of in-site detecting rainfall infiltration parameter | |
| CN103206996B (en) | Pore wall gas flow measuring device and pore wall gas flow measuring method | |
| CN110231279A (en) | Rock drying and watering cycle corrosion comprehensive testing method | |
| CN105738145B (en) | The coefficient shield tunnel leak test system of elastic sealing gasket, soil, water | |
| CN207850876U (en) | A kind of bentonite waterproof blanket test specimen tube and the apparatus for measuring permeability coefficient containing the test specimen tube | |
| CN209708465U (en) | Soil body penetration crash simulation device | |
| CN209820834U (en) | Automatic measuring box for trace gas flux on water-gas interface | |
| CN210982436U (en) | Slurry shield excavation surface stratum simulation device | |
| CN206920294U (en) | A kind of permeation coefficient of permeable concrete determines device | |
| CN201417223Y (en) | Down-hole depth-determining water sampling apparatus | |
| CN203909034U (en) | Cracking failure simulation testing system for anti-seepage structure of compacted clay under environmental gradient action | |
| CN208547560U (en) | The device of mud film forming and measurement mud film amounts of consolidation, air inflow | |
| CN205670113U (en) | A kind of concrete durability experiment device of simulation medium pressure influence | |
| CN205280546U (en) | Rock specimen osmotic coefficient testing arrangement | |
| RU2369859C1 (en) | Method of taking concretion samples from sea shelf and device to this end |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |