CN105699157B - Soft rock sample water installations and the full water method of satisfying - Google Patents

Soft rock sample water installations and the full water method of satisfying Download PDF

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Publication number
CN105699157B
CN105699157B CN201610188819.4A CN201610188819A CN105699157B CN 105699157 B CN105699157 B CN 105699157B CN 201610188819 A CN201610188819 A CN 201610188819A CN 105699157 B CN105699157 B CN 105699157B
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China
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rock sample
soft rock
sleeve
permeable
satisfying
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CN201610188819.4A
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Chinese (zh)
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CN105699157A (en
Inventor
胡亚东
杨静熙
肖华波
陈长江
刘懿辉
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中国电建集团成都勘测设计研究院有限公司
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Priority to CN201610188819.4A priority Critical patent/CN105699157B/en
Publication of CN105699157A publication Critical patent/CN105699157A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/28Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/30Staining; Impregnating Fixation; Dehydration; Multistep processes for preparing samples of tissue, cell or nucleic acid material and the like for analysis
    • G01N1/31Apparatus therefor

Abstract

The invention discloses a kind of soft rock sample water installations of satisfying, belong to geotechnical engineering and Geological Engineering technical field, full water installations a kind of easy to operate, soft rock sample can be prevented to be disintegrated during full water are provided, and carry out the full water method of full water to soft rock sample using the device.The full water installations include mould casing and the inner sleeve for wrapping up soft rock sample, and there is the inner sleeve hot shortness, the mould casing to be sleeved on outside inner sleeve, and the internal diameter of mould casing matches with inner sleeve pipe outside diameter;It is respectively arranged with uniformly distributed permeable hole on inner sleeve and the tube wall of mould casing.Full water installations of the present invention, the full water that can be effectively suitable for soft rock sample are tested, and can effectively avoid the problem that being disintegrated during the full water of sample, and then the full water success rate of soft rock sample can be improved, and ensure the accuracy of follow-up test result.

Description

Soft rock sample water installations and the full water method of satisfying

Technical field

The present invention relates to geotechnical engineering and Geological Engineering technical field more particularly to a kind of satisfying for the full water of soft rock sample Water installations and full water method.

Background technology

Currently, with building, geological disaster, water conservancy and hydropower, municipal administration, the quickening of transportation industry large-scale construction project, in work In journey practice, quality requirement and conventional efficient to rock mass mechanics experiment require higher and higher.In rock mass mechanics experiment, soft rock As a kind of special rock mass, structural plane is more developed, in addition also contain more dilatant mineral, and mechanical strength compared with It is low;Especially when analyzing influence of the moisture content to Mechanical property, generally require to carry out soaked or full water to soft rock sample Experiment, however soft rock sample easy tos produce disintegration problem during this, so as to cause soft rock specimen fails, causes full water experiment Failure, or influence the accuracy of follow-up test result.

In existing technology, the soaked or full water experiment of rock, mainly for the higher rock of hardness, due to itself Hardness is higher, the problems such as being not susceptible to be disintegrated during full water, therefore often directly uses without the full water of constraint, i.e., directly by rock Stone sample impregnates in water.But when carrying out full water experiment to soft rock, according to without the full water mode of constraint, sample is full Disintegration is easy tod produce during water, water effect of preferably satisfying is extremely difficult to, causes the full water experiment success rate of soft rock relatively low.

Invention content

The technical problem to be solved by the present invention is to provide a kind of easy to operate, soft rock sample can be prevented to be disintegrated during full water Full water installations, and the full water method of full water is carried out using the device to soft rock sample.

The technical solution adopted by the present invention to solve the technical problems is:Soft rock sample water installations of satisfying, including mold set There is hot shortness, the mould casing to be sleeved on outside inner sleeve for pipe and the inner sleeve for wrapping up soft rock sample, the inner sleeve, and And the internal diameter of mould casing matches with inner sleeve pipe outside diameter;It is respectively arranged on inner sleeve and the tube wall of mould casing uniformly distributed saturating Water hole.

It is further:The inner sleeve is plastic tube, shrinkage rates 4:1, minimum complete shrinkage temperature is 125 ℃。

It is further:The mould casing is the tubular shell being spliced by three arc limbs;Further include being sleeved on In mould casing, it to be used for the cranse of banding above three arc limb.

It is further:Further include permeable end cap and fastening structure;Water jacket of satisfying is formed after inner sleeve and mould casing socket The both ends of pipe, jacket pipe of satisfying are hatch frame;The permeable end cap has two pieces, and two pieces of permeable end caps are covered respectively in full jacket pipe On both ends open, the fastening structure is used to fastening two pieces of permeable end caps into the opening at full jacket pipe both ends respectively.

It is further:The fastening structure includes upper retaining ring, lower retaining ring and is used to connect two upper retaining rings and lower retaining rings Connection bolt, the upper retaining ring and lower retaining ring all have ladder hole structure, and permeable end cap can be placed into ladder hole structure Step surface on.

It is further:Mutual corresponding buckle ear is respectively arranged on upper retaining ring and lower retaining ring, the connection bolt One end is hinged on the buckle ear of lower retaining ring, and the other end is removably buckled in corresponding buckle ear on upper retaining ring by regulating nut On.

It is further:Further include spring, the spring pocket is on connection bolt, and spring is located at regulating nut and upper Between the buckle ear of retaining ring.

It is further:The connection bolt has three groups, and three groups of connection bolts are uniformly distributed in the circumferential.

It is further:The permeable end cap is permeable stone.

In addition, the present invention also provides a kind of full water method, using above-mentioned full water installations, and carry out in accordance with the following steps:

The soft rock sample of column structure is put into inner sleeve by the first step, and keeps the upper and lower ends of soft rock sample and interior The upper and lower ends of casing are aligned;

Second step, the hot wind blown out with hot hair dryer make inner sleeve shrink, so that inner sleeve packs tightly soft rock sample;

Inner sleeve is inserted in together with the soft rock sample wrapped in mould casing, and makes inner sleeve, mold by third step The end part aligning of casing and soft rock sample three, then with the both ends of two cranse banding mould casings;

Two pieces of permeable end caps are covered the end at soft rock sample both ends by the 4th step respectively, then again will be saturating with fastening structure Water end (W.E.) cover buckle is tight;

5th step carries out full water process;The full water process is the full water of vacuum, conventional full water or freeze thawing treatment.

The beneficial effects of the invention are as follows:By inner sleeve of the setting with hot shortness, soft rock can be tried after pyrocondensation processing Sample packs tightly, while permeable hole is provided on the wall surface of inner sleeve, therefore can realize the full water of internal soft rock sample and prevent Only there is a situation where be disintegrated to occur for soft rock sample during full water;Meanwhile by the way that mould casing is further arranged, soft rock can be tried Sample and inner sleeve play certain support, protective effect.Therefore, full water installations of the present invention, can effectively be suitable for The full water of soft rock sample is tested, and can effectively avoid the problem that being disintegrated during the full water of sample, and then it is full that soft rock sample can be improved Water success rate, and ensure the accuracy of follow-up test result.In addition, permeable end cap and fastening structure is further arranged in the present invention, So that the port at soft rock sample both ends is had and effect and water penetration are effectively covered to soft rock, it is possible to provide to the branch at soft rock sample both ends Support and the full water effect for improving end.Full water method of the present invention, utilizes full water installations of the present invention, this method Operating process is simple, carries out pyrocondensation processing to inner sleeve using hot hair dryer, you can enable inner sleeve effectively by soft rock sample It packs tightly.

Description of the drawings

Fig. 1 is the explosive view of full water installations of the present invention;

Fig. 2 is the 3-D view of full water installations of the present invention;

Fig. 3 is the vertical view of full water installations of the present invention;

Fig. 4 is the sectional view at the interfaces A-A in Fig. 3;

Fig. 5 is the 3-D view of full jacket pipe;

Fig. 6 is the explosive view of Fig. 5;

Fig. 7~Figure 10 is the flow diagram of the operating procedure of full water method of the present invention;

In figure label for:It is mould casing 1, arc limb 11, soft rock sample 2, inner sleeve 3, permeable hole 4, cranse 5, permeable End cap 6, full jacket pipe 7, fastening structure 8, upper retaining ring 81, lower retaining ring 82, connection bolt 83, ladder hole structure 84, buckle ear 85, Regulating nut 86, spring 87, hot hair dryer 9.

Specific implementation mode

The present invention is further described with reference to the accompanying drawings and detailed description.

As shown in Figures 1 to 6, soft rock sample of the present invention water installations of satisfying, including mould casing 1 and for wrapping up The inner sleeve 3 of soft rock sample 2, the inner sleeve 3 have hot shortness, and the mould casing 1 is sleeved on outside inner sleeve 3, and mold The internal diameter of casing 1 matches with 3 outer diameter of inner sleeve;It is respectively arranged on inner sleeve 3 and the tube wall of mould casing 1 uniformly distributed permeable Hole 4.The effect of permeable hole 4 is passing through for water, and then in full water, and water can be by permeable hole 4 to enter the soft of inside In rock sample.More specifically, the permeable hole 4 in mould casing 1 and inner sleeve 3 may be configured as same or different size knot Structure;Permeable hole is preferably round hole.

The effect of above-mentioned inner sleeve 3 is mainly used for wrapping up soft rock sample 2, and selects the inner sleeve 3 with hot shortness, then It is that pyrocondensation processing is carried out to inner sleeve 3 in order to realize, so that it shrinks.Such benefit is, in being put into soft rock sample 2 After in casing 3, by being heated to inner sleeve 3, effectively soft rock sample can be packed tightly after so that it is shunk;Can have in this way There is a situation where be disintegrated during full water for soft rock sample after the avoiding of effect.

Under normal conditions, in order to reach above-mentioned pyrocondensation effect, preferable inner sleeve 3 is plastic tube, and for the plastic tube Pyrocondensation sex ratio can be more preferably 4:1 or approximate extents other values so that shrink after inner sleeve 3 can effectively by Soft rock sample packs tightly.In addition also preferably the minimum complete shrinkage temperature of the plastic tube is 125 DEG C, in order to use hot hair dryer Carry out pyrocondensation processing.It is generally unsuitable blocked up as the thickness of inner sleeve 3, in order to make it have preferable hot shortness, such as can set It is 0.5mm to set its wall thickness.

In addition, the effect of mould casing 1 is to play certain support, protective effect to soft rock sample and inner sleeve 3;With And when being provided with permeable end cap 6 and fastening structure 8 later, axial compression resistance ability can be provided, fastening structure 8 is avoided to cause soft rock The crimp of sample.For this purpose, mould casing 1 usually selects the higher material of steel equal strength to be made.And it dismantles for convenience Mould casing 1 can be set to the tubular shell structure being spliced by least two arc limbs 11, such as institute in attached drawing 1 Show, setting mould casing 1 is the tubular shell being spliced by three arc limbs 11;It is provided with simultaneously and is sleeved on mould casing 1 On, it is used for the cranse 5 of banding above three arc limb 11.

The effect of cranse 5 is to be used for banding arc limb 11, and the material with porous permeable shrinkage can be selected in material, Make it that can carry out a degree of contraction under the conditions of being squeezed power with banding arc limb 11, while also having preferable saturating Aqueous energy.Certainly the clip or cranse form of other forms can also be used, such as the plastics with certain elasticity also can be used Circle or rubber ring.

Furthermore, it is contemplated that when the above-mentioned structure being only made of inner sleeve 3, mould casing 1 and cranse 5, due to its two End is often hatch frame;It is may further be provided thus such as lower component:Including permeable end cap 6 and fastening structure 8;Inner sleeve 3 Jacket pipe 7 of satisfying is formed after being socketed with mould casing 1, the both ends for jacket pipe 7 of satisfying are hatch frame;The permeable end cap 6 has two pieces, Two pieces of permeable end caps 6 are covered respectively on the both ends open of full jacket pipe 7, and the fastening structure 8 is for dividing two pieces of permeable end caps 6 It does not fasten in the opening at full 7 both ends of jacket pipe.In this way, permeable end cap 6 to be buckled in the both ends of full jacket pipe 7 by fastening structure In opening, limit effect of contraction can be played to internal 2 corresponding end of soft rock sample, also, have centainly thoroughly due to selecting The permeable end cap 6 of aqueous energy, in this way, moisture plays full water effect after also can pass through permeable end cap 6 to the end of soft rock sample 2. More specifically optional permeable stone is permeable end cap 6.

More specifically, as shown in the picture, fastening structure 8 may be configured as including upper retaining ring 81, lower retaining ring 82 and for connecting The connection bolt 83 of two upper retaining rings 81 and lower retaining ring 82, the upper retaining ring 81 and lower retaining ring 82 all have ladder hole structure 84, permeable end cap 6 can be placed on the step surface of ladder hole structure 84.Wherein, the effect one side of ladder hole structure is It is snapped onto on permeable end cap 6 by cascaded surface, meanwhile, it uses through-hole to be arranged by it, when allowing full water, permeable end cap can be made 6 surface is directly contacted with water, further increases the full water effect to 2 end of soft rock sample, is avoided because to soft rock sample 2 End causes the full water effect in the part poor situation after being covered.

The effect of connection bolt 83 is provided axially for connecting upper retaining ring 81 and lower retaining ring 82, and by connecting bolt Pulling force, by the fastening of the permeable end cap 6 at both ends in the opening at full 7 both ends of jacket pipe.As for the specific knot of connection bolt 83 Following form can be used in structure:It is respectively arranged with mutual corresponding buckle ear 85 on upper retaining ring 81 and lower retaining ring 82 first, such as attached It is respectively arranged with three groups of 85 structures of buckle ear in figure, while one end end of three groups of connection bolts 83 is respectively hinged at lower retaining ring 82 Corresponding buckle ear on, its other end is removably buckled on upper retaining ring 81 by regulating nut 86 on corresponding buckle ear 85. The concrete structure of buckle ear 85 may be used the parallel panel-like member as shown in Figure 1 being spaced from each other a distance by two pieces and form, The diameter of connection bolt 83 then can be just put between two boards shape part.Certainly, it for the buckle ear on upper retaining ring 81, can also adopt With the structure of column sleeve, that is, be arranged one and pass through sets of holes for connection bolt 83, connection bolt 83 pass through after sets of holes with regulating nut 86 It is threadedly coupled.

It is furthermore preferred that in order to enable the tightening force to two pieces of permeable end caps 6 has certain automatic adjustment, adaptability; The present invention is further additionally provided with spring 87, and the spring 87 is sleeved on connection bolt 83, while 87, spring is arranged Between regulating nut 86 and the buckle ear 85 of upper retaining ring 81.In this way, when volume expansion is larger after full water for soft rock sample 2, it can Automatically after overcoming the elastic force of spring 87, the permeable end cap 6 at both ends is ejected into appropriately distance from trend both ends.

In addition, the present invention also provides a kind of full water method of soft rock sample, specific step process can be found in 7~attached drawing of attached drawing Shown in 10, the full water installations described in aforementioned present invention are used, are carried out in accordance with the following steps:

The soft rock sample 2 of column structure is put into inner sleeve 3 by the first step, and keep soft rock sample upper and lower ends and The upper and lower ends of inner sleeve are aligned;

Second step, the hot wind blown out with hot hair dryer 9 make inner sleeve 3 shrink, so that inner sleeve 3 packs tightly soft rock sample 2;

Inner sleeve 3 is inserted in together with the soft rock sample wrapped in mould casing 1 by third step, and make inner sleeve 3, The end part aligning of 2 three of mould casing 1 and soft rock sample, then with the both ends of two 5 banding mould casings 1 of cranse;

Two pieces of permeable end caps 6 are covered the end at 2 both ends of soft rock sample by the 4th step respectively, then use fastening structure 8 will again Permeable end cap 6 fastens;

5th step carries out full water process;The full water process is the full water of vacuum, conventional full water or freeze thawing treatment.

Wherein, when using hot hair dryer 9 to realize the shrink process to inner sleeve 3 in step 2, preferably from inner sleeve 3 Lower part gradually handled to top blowing, and hot hair dryer can be rotated when blowing, hot hair dryer is made twist gradually to rotate Rise, to make soft rock sample gradually be packed tightly by inner sleeve 3 in the case of uniform force.In actual process, inner sleeve The length of pipe 3 can suitably be longer than the length of soft rock sample 2, and can be after carrying out shrink process, then by scissors by inner sleeve 3 The part that both ends have more is cut, and keeps the both ends of inner sleeve 3 concordant with the both ends of soft rock sample 2.

Soft rock sample water installations of satisfying described in aforementioned present invention, the size of each component should be wanted according to its assembly Ask and 2 actual size of soft rock sample and set;For different size of soft rock sample, the size of each component can be adjusted accordingly; And the material of each component can also carry out various selections in the case where meeting its performance requirement.For example, the present invention proposes one kind such as Lower specific example:

The size for carrying out the soft rock sample 2 of full water experiment is diameter 50mm, height 100mm cylinders;

It for 52mm, is highly 110mm that inner sleeve 3, which uses internal diameter, shrinkage rates 4:1, minimum complete shrinkage temperature 125 DEG C, the plastic material casing of wall thickness 0.5mm.It is after inner sleeve 3 wraps up soft rock sample 2 and is heat-treated, its length is opposite It is wiped out in the parts 10mm that soft rock sample is had more, that is, the length for wiping out rear inner sleeve 3 is finally 100mm.

The selection of mould casing 1 is spliced by three pieces of arc limbs 11;The corresponding radian of every arc limb is 120 degree. Arc limb 11 is made of high-strength stainless steel material.The outer diameter of spliced mould casing 1 is 55mm, and internal diameter is 50.5mm is highly 100mm.Mould casing 1 should treated that inner sleeve 3 matches with pyrocondensation, with zero clearance with being combined into most It is good.

Mould casing 1 is identical as the size of permeable hole 4 on inner sleeve 3, using the aperture of diameter 3mm, adjacent permeable hole 4 Between center spacing be 6mm.

The outer diameter of cranse 5 is 65mm, internal diameter 55mm, is highly 10mm.Material selection has porous permeable shrinkage material Material, can carry out a degree of contraction, with banding arc limb under the conditions of being squeezed power.

Upper retaining ring 81 is consistent with lower 82 size of retaining ring, and positional symmetry when installation selects plastic material.The above retaining ring 81 is Example:Outer diameter is 75mm, total height 30mm, its internal diameter are divided into upper part and lower part along the axial direction of ladder hole structure 84 Point, upper inner diameter 50mm, height 5mm;Lower inner diameter is 66mm, height 25mm.Simultaneously in upper retaining ring 81 and lower retaining ring 82 Three groups of equally distributed buckle ears 85, the panel-like member that each buckle ear 85 is extended in parallel away by two along edge are provided on periphery wall The extended length of prolonging of composition, two boards shape part is 10mm, and the spacing of the two is 5mm, can accommodate connection bolt 83 and pass through.

The steel column that bolt 83 is a diameter of 5mm is connected, lower end is hinged on the buckle ear of lower retaining ring 82, and upper part, which sets up separately, to be equipped with One section of screw thread, and with 86 screw-thread fit of regulating nut;Below regulating nut 86, spring is provided with above the buckle ear of upper retaining ring 87.Spring 87 is to be socketed on connection bolt 83.

Permeable end cap 6 selects permeable stone, is highly a diameter of 65mm, 5mm.

Water experiment of satisfying accordingly can be carried out after above-mentioned members soft rock sample is assembled together.

Claims (9)

1. soft rock sample water installations of satisfying, it is characterised in that:Including mould casing (1) and for wrapping up the interior of soft rock sample (2) Casing (3), the inner sleeve (3) have hot shortness, and the mould casing (1) is sleeved on inner sleeve (3) outside, and mould casing (1) internal diameter matches with inner sleeve (3) outer diameter;It is respectively arranged on inner sleeve (3) and the tube wall of mould casing (1) uniformly distributed Permeable hole (4);Further include permeable end cap (6) and fastening structure (8);Water of satisfying is formed after inner sleeve (3) and mould casing (1) socket The both ends of casing (7), jacket pipe (7) of satisfying are hatch frame;The permeable end cap (6) has two pieces, and two pieces of permeable end caps (6) are respectively It covers on the both ends open of full jacket pipe (7), the fastening structure (8) is used to fasten two pieces of permeable end caps (6) full respectively In the opening at jacket pipe (7) both ends.
2. soft rock sample as described in claim 1 water installations of satisfying, it is characterised in that:The inner sleeve (3) is plastic tube, Shrinkage rates are 4:1, minimum complete shrinkage temperature is 125 DEG C.
3. soft rock sample as described in claim 1 water installations of satisfying, it is characterised in that:The mould casing (1) is by three The tubular shell that arc limb (11) is spliced into;Further include being sleeved in mould casing (1), is used for banding above three arc valve The cranse (5) of piece (11).
4. soft rock sample as described in claim 1 water installations of satisfying, it is characterised in that:The fastening structure (8) includes upper button Ring (81), lower retaining ring (82) and the connection bolt (83) for connecting two upper retaining rings (81) and lower retaining ring (82), the upper button Ring (81) and lower retaining ring (82) all have ladder hole structure (84), and permeable end cap (6) can be placed into ladder hole structure (84) Step surface on.
5. soft rock sample as claimed in claim 4 water installations of satisfying, it is characterised in that:In upper retaining ring (81) and lower retaining ring (82) On be respectively arranged with mutual corresponding buckle ear (85), one end of the connection bolt (83) is hinged on the buckle ear of lower retaining ring (82) On, the other end is removably buckled on upper retaining ring (81) by regulating nut (86) on corresponding buckle ear (85).
6. soft rock sample as claimed in claim 5 water installations of satisfying, it is characterised in that:Further include spring (87), the spring (87) be sleeved in connection bolt (83), and spring (87) be located at regulating nut (86) and upper retaining ring (81) buckle ear (85) it Between.
7. soft rock sample as claimed in claim 4 water installations of satisfying, it is characterised in that:The connection bolt (83) has three groups, Three groups of connection bolts (83) are uniformly distributed in the circumferential.
8. soft rock sample as described in claim 1 water installations of satisfying, it is characterised in that:The permeable end cap (6) is permeable stone.
The water method 9. soft rock sample is satisfied, it is characterised in that:Using the full water installations described in any one of the claims 1 to 8, It carries out in accordance with the following steps:
The soft rock sample (2) of column structure is put into inner sleeve (3) by the first step, and keep soft rock sample upper and lower ends and The upper and lower ends of inner sleeve are aligned;
Second step, the hot wind blown out with hot hair dryer (9) make inner sleeve (3) shrink, so that inner sleeve (3) packs tightly soft rock sample (2);
Inner sleeve (3) is inserted in together with the soft rock sample wrapped in mould casing (1), and makes inner sleeve by third step (3), the end part aligning of mould casing (1) and soft rock sample (2) three, then with two cranse (5) banding mould casings (1) Both ends;
Two pieces of permeable end caps (6) are covered the end at soft rock sample (2) both ends by the 4th step respectively, then use fastening structure (8) again Permeable end cap (6) are fastened;
5th step carries out full water process;The full water process is the full water of vacuum, conventional full water or freeze thawing treatment.
CN201610188819.4A 2016-03-29 2016-03-29 Soft rock sample water installations and the full water method of satisfying CN105699157B (en)

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Application Number Priority Date Filing Date Title
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CN105699157B true CN105699157B (en) 2018-10-30

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4587857A (en) * 1984-10-18 1986-05-13 Western Geophysical Company Of America Method for mounting poorly consolidated core samples
CN1979118A (en) * 2005-12-09 2007-06-13 中国科学院地质与地球物理研究所 Soft rock water-saturation holder
CN204461965U (en) * 2015-03-10 2015-07-08 成都理工大学 Adding pressure type rock permeability instrument
CN104990775A (en) * 2015-07-07 2015-10-21 董彤 Hollow cylinder sample saturator
CN105092386A (en) * 2015-08-06 2015-11-25 山东科技大学 High-pressure water sealing device for rock sample and use method
CN205483749U (en) * 2016-03-29 2016-08-17 中国电建集团成都勘测设计研究院有限公司 Soft rock sample is with full water installation

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4587857A (en) * 1984-10-18 1986-05-13 Western Geophysical Company Of America Method for mounting poorly consolidated core samples
CN1979118A (en) * 2005-12-09 2007-06-13 中国科学院地质与地球物理研究所 Soft rock water-saturation holder
CN204461965U (en) * 2015-03-10 2015-07-08 成都理工大学 Adding pressure type rock permeability instrument
CN104990775A (en) * 2015-07-07 2015-10-21 董彤 Hollow cylinder sample saturator
CN105092386A (en) * 2015-08-06 2015-11-25 山东科技大学 High-pressure water sealing device for rock sample and use method
CN205483749U (en) * 2016-03-29 2016-08-17 中国电建集团成都勘测设计研究院有限公司 Soft rock sample is with full water installation

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