CN1979118B - Soft rock water-saturation holder - Google Patents
Soft rock water-saturation holder Download PDFInfo
- Publication number
- CN1979118B CN1979118B CN2005101303341A CN200510130334A CN1979118B CN 1979118 B CN1979118 B CN 1979118B CN 2005101303341 A CN2005101303341 A CN 2005101303341A CN 200510130334 A CN200510130334 A CN 200510130334A CN 1979118 B CN1979118 B CN 1979118B
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- Prior art keywords
- guide pin
- sample
- pin bushing
- water
- rubber case
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to a soft rock water-filling cramp that includes rubber case, location fastening, and intake-outtake component. In the channel of rubber case there is at least one location fastening. The inner outer round side contacts to the inner wall of rubber case. The outer end of locating component connects to the intake-outtake component. While using the cramp, the soft rock water-filling sample is located in the channel of the rubber case, and one side or two sides connects to the inner end with location fastening. The invention has the advantages of simple structure, easy to operate, low cost and high efficiency.
Description
Technical field
The present invention relates to the Geological Engineering technical field, particularly in the mechanics of the full water of soft rock detects, a kind of soft rock water-saturation holder of use.
Background technology
Soft rock is meant a rocks weak on the mechanics, and its composition is rich in shale.In rock engineering, because the mechanical property of soft rock weakness, thereby become the main determining factor of intensity and distortion.Behind the full water of soft rock, the imbibition of shale mineral can greatly reduce the mechanical property of rock, determines the change in mechanics behind the full water of soft rock, is one of problem of rock engineering overriding concern.
The method of the full water of existing soft rock is to be based upon on the basis of the full water of hard rock, can be divided into three major types:
The first kind: soft rock is placed in the water and vacuumizes, and before soft rock has explosion and caves in it is not taken out.Using this full water method, usually is that water only enters a part of sample pore space, does not reach to make sample be full of water saturation.
Second class: soft rock is put into rubber case or metallic sheath, inject water under high pressure to reach to saturated purpose in sample, this method has three big shortcomings: (1) complex process; (2) soft rock is under high pressure or confined pressure condition, and sample structure can change; (3) in open convection current water filling, there are some sample compositions to run off.
The 3rd class: be to utilize sample copy barrel shape capillary force to suck water or water vapor to carry out saturatedly, relatively near the full water process of nature, shortcoming is the chronic of saturated needs to this method.
Summary of the invention
Fundamental purpose of the present invention provides a kind of soft rock water-saturation holder, and it is simple in structure, and is easy to operate, the low but efficient height of cost.
Second purpose of the present invention is the full water saturation degree of sample that fully improves in the soft rock mechanics detection, makes near state of nature.The sample hole volumetric parameter that relies in the saturation computation comprises the pore space of sample interior and the pit of sample surfaces, and owing to operational reason, the too much or very few water of the normal absorption of sample surfaces pit influences the saturation degree measuring accuracy.
For achieving the above object, technical solution of the present invention provides a kind of soft rock water-saturation holder, form by rubber case, positioning and fastening spare, passing piece, one end of its cylindricality pipe shape rubber case is uncovered or two ends are penetrating, form passage, in the passage of rubber case, be provided with at least one positioning and fastening spare, the inner periphery circle of positioning and fastening spare contacts with the vias inner walls of rubber case is moving, and seals adaptive; The outer end and the passing piece of positioning and fastening spare are dynamically connected;
During use, the full water sample of soft rock is positioned at the passage of rubber case, and one or both sides closely are connected with the inner of positioning and fastening spare.
Described soft rock water-saturation holder, its described positioning and fastening spare is made up of passage guide pin bushing, set collar, separation layer, and wherein, the outer rim of set collar contacts with the vias inner walls of rubber case is moving, and seals adaptive; Be connected with netted separation layer on the interior circle of set collar, be covered with micropore on the netted separation layer; There is a cylindricality pipe shape passage guide pin bushing outer end of set collar, and its inner chamber forms passage, and the inner of passage guide pin bushing and set collar, the netted separation layer that reaches on the set collar are suitable, and the outer end is uncovered; The inner outer peripheral edges of passage guide pin bushing contact with the vias inner walls of rubber case is moving, and seal adaptive; The inner diameter of passage guide pin bushing is greater than the outer end diameter, and rubber case is stretched out in the outer end, makes outer end portion form neck, is provided with web member on the periphery wall of neck; Web member and passing piece are dynamically connected.
Described soft rock water-saturation holder, its described web member is the pin thread of passage guide pin bushing outer end neck; Passing piece is a turnover guide pin bushing nut; On the outer end neck of passage guide pin bushing, cover one turnover guide pin bushing nut, the pin thread of neck is suitable with the female screw on the turnover guide pin bushing nut inner round wall, and moving contact.
Carry out the full water of soft rock with soft rock water-saturation holder of the present invention, be with the difference of the full water method of soft rock in the past:
Soft rock water-saturation holder utilize water under the vacuum on the netted separation layer of sample end face formed tension force and rubber case to the elastic restraint of sample, solved the soft rock sample in full water process, explosion, the sample imperfection of caving in and being caused, and the inadequate problem of saturation degree, reached the complete water saturation of soft rock sample and guaranteed the purpose of the integrality of sample.
Description of drawings
Fig. 1 is the structural representation of soft rock water-saturation holder of the present invention.
Embodiment
The structure of soft rock water-saturation holder of the present invention, as shown in Figure 1, form by rubber case 2, passage guide pin bushing 3, set collar 4, separation layer 5, turnover guide pin bushing nut 6, wherein, the two ends of cylindricality pipe shape rubber case 2 are penetrating, form passage, in the passage of rubber case 2, be provided with two set collars 4, the outer rim of set collar 4 contacts with the vias inner walls of rubber case 2 is moving, and seals adaptive.Be connected with netted separation layer 5 on the interior circle of set collar 4, be covered with micropore on the netted separation layer 5, air can pass, but because the effect of tension force, water can't penetrate.Respectively there is a cylindricality pipe shape passage guide pin bushing 3 outer end of two set collars 4, and its inner chamber forms passage, and the inner of passage guide pin bushing 3 and set collar 4, the netted separation layer 5 that reaches on the set collar 4 are suitable, and the outer end is uncovered; The inner outer peripheral edges of passage guide pin bushing 3 contact with the vias inner walls of rubber case 2 is moving, and seal adaptive; The inner diameter of passage guide pin bushing 3 is greater than the outer end diameter, and rubber case is stretched out in the outer end, makes outer end portion form neck, is provided with pin thread on the periphery wall of neck; On the outer end neck of two passage guide pin bushings 3, each overlaps a turnover guide pin bushing nut 6, and the pin thread of neck is suitable with the female screw on turnover guide pin bushing nut 6 inner round wall, and moving contact.
The use step of soft rock water-saturation holder of the present invention is:
1, at first sample 1 is put into the passage of rubber case 2.
2, two cover passage guide pin bushings 3, set collar 4 and netted separation layer 5 are formed two fixing one-piece parts.Netted separation layer 5 is placed on the bottom surface of passage guide pin bushing 3 the inners, is covered in inner passway, with set collar 4 netted separation layer 5 is fixed on passage guide pin bushing 3 inner faces then.
3, again on two one-piece parts, an end of netted separation layer 5 is arranged, put into the passage of rubber case 2 from the openings at rubber case 2 two ends, reinforcing makes with sample 1 surface and combines closely.
4, two turnover guide pin bushing nuts 6 are screwed in respectively on the screw thread of two passage guide pin bushing 3 necks, whole like this soft rock water-saturation holder assembling is finished, the tank of it being put into sealing carries out the full water of vacuum, after sample 1 is saturated, rotate two guide pin bushing nuts 6, the one-piece parts at two ends is back-outed, stay sample 1 in rubber case 2, reinstall research experiment in the equipment.
The present invention utilizes the elasticity of rubber case 2 that rubber and sample 1 table side face are close to, the water that is filled in sample table side pit like this is just relatively near state of nature, state of nature that the metering of the saturation water volume under the state is just approaching like this, thereby can improve the precision of measuring saturation degree.
The present invention has made full use of the tension force effect of water on the netted separation layer 5.Under normal pressure (standard atmospheric pressure situation), owing to be micropore on the netted separation layer 5, air can pass, but owing to water under the effect of tension force can't penetrate.Soft rock water-saturation holder is placed under the condition that vacuumizes, because the extraction of air in the sample 1, the sample 1 inside and outside pressure reduction that forms, but when pressure reduction surpasses the tension force of water on the netted separation layer 5, water just can enter sample 1 inside, fill air and take the vacancy that become away, this process is extended to till sample 1 internal and external pressure balance.
The present invention is the integrality that keeps sample 1.In the water saturation process, because the constraint of rubber case 2 and netted separation layer 5 has guaranteed that sample 1 does not expand outwardly, there is not explosion and the phenomenon generation of caving in, guaranteed the structure and the external size constancy of sample 1.
Use soft rock water-saturation holder of the present invention, after making that sample water is saturated and finishing, utilize turnover guide pin bushing nut 6, take out netted separation layer 5, keep complete water saturated sample 1 and rubber case 2, be used for other experiment tests.Operating process is, inwardly rotation turnover guide pin bushing nut 6, up to contact rubber case 2, then allow the fulcrum of rubber case 2 conducts, continue rotation turnover guide pin bushing nut 6, thereby cause passage guide pin bushing 3 outwards to move, promptly move to the opposite direction of turnover guide pin bushing nut 6 along the vias inner walls of rubber case 2, make netted separation layer 5 vertical parallel ground break away from sample 1, guarantee that the end face of sample 1 is complete.
According to the above description, those skilled in the art do any amount of change and should drop in protection scope of the present invention.
Claims (2)
1. soft rock water-saturation holder, form by rubber case, positioning and fastening spare, passing piece, it is characterized in that, described rubber case is a cylindricality pipe shape, and the two ends of described rubber case are penetrating, forms passage, in the passage of described rubber case, be provided with at least one described positioning and fastening spare, the inner outer peripheral edges of described positioning and fastening spare contact with the vias inner walls of described rubber case is moving, and seal adaptive; The outer end of described positioning and fastening spare and described passing piece are dynamically connected;
Described positioning and fastening spare is made up of passage guide pin bushing, set collar, separation layer, and wherein, the outer rim of described set collar contacts with the vias inner walls of described rubber case is moving, and seals adaptive; Be connected with described separation layer on the interior circle of described set collar, described separation layer is netted separation layer, is covered with micropore on the described netted separation layer; There is described passage guide pin bushing the outer end of described set collar, described passage guide pin bushing is a cylindricality pipe shape, described passage guide pin bushing inner chamber forms passage, and the inner of described passage guide pin bushing and described set collar, the described netted separation layer that reaches on the described set collar are suitable, and the outer end is uncovered; The inner outer peripheral edges of described passage guide pin bushing contact with the vias inner walls of described rubber case is moving, and seal adaptive; The inner diameter of described passage guide pin bushing is greater than the outer end diameter, and described rubber case is stretched out in the outer end, makes outer end portion form neck, is provided with connecting portion on the periphery wall of neck; Described connecting portion and described passing piece are dynamically connected;
During use, described soft rock water-saturation holder is placed under the condition that vacuumizes, described soft rock water-saturation holder utilizes water under the vacuum in the elastic restraint to sample of the tension force of the netted separation layer of sample end face and rubber case, solved described sample in full water process, explosion, the sample imperfection of caving in and being caused, and the inadequate problem of saturation degree have reached the complete water saturation of soft rock sample and have guaranteed the purpose of the integrality of sample; Because on the netted separation layer is micropore, air can pass, but owing to water under the effect of tension force can't penetrate, air is extracted out in the sample, and the inside and outside pressure reduction that forms of sample is when pressure reduction surpasses the tension force of water on the netted separation layer, water can enter sample interior, fills air and takes the vacancy that become away; The full water sample of soft rock is positioned at the passage of rubber case, and one or both sides closely are connected with the inner of positioning and fastening spare.
2. soft rock water-saturation holder as claimed in claim 1 is characterized in that, described connecting portion is the pin thread of described passage guide pin bushing outer end neck; Described passing piece is a turnover guide pin bushing nut; On the outer end neck of described passage guide pin bushing, overlap described turnover guide pin bushing nut, the pin thread of neck is suitable with the female screw on the turnover guide pin bushing nut inner round wall, and moving contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005101303341A CN1979118B (en) | 2005-12-09 | 2005-12-09 | Soft rock water-saturation holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005101303341A CN1979118B (en) | 2005-12-09 | 2005-12-09 | Soft rock water-saturation holder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1979118A CN1979118A (en) | 2007-06-13 |
| CN1979118B true CN1979118B (en) | 2011-02-16 |
Family
ID=38130359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005101303341A Expired - Fee Related CN1979118B (en) | 2005-12-09 | 2005-12-09 | Soft rock water-saturation holder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1979118B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102253181B (en) * | 2011-06-13 | 2013-12-25 | 中国矿业大学(北京) | Intelligent test system for hydraulic function of deep soft rock |
| CN105699157B (en) * | 2016-03-29 | 2018-10-30 | 中国电建集团成都勘测设计研究院有限公司 | Soft rock sample water installations and the full water method of satisfying |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5079948A (en) * | 1991-01-28 | 1992-01-14 | Mobil Oil Corporation | Method for conducting capillary pressure drainage and imbibition on a core sample of a porous rock |
| DE4213666A1 (en) * | 1992-04-22 | 1992-09-10 | Umwelt Und Wirtschaftsgeologie | Determining migration characteristics of pollutants in loose soil - by determining grain sizes and moisture content, saturating earth sample, determining porosity, determining filter optimum sieve mesh size and establishing throughput value |
| CN2164460Y (en) * | 1993-07-03 | 1994-05-11 | 江汉石油学院 | Rock core holder |
| CN2189744Y (en) * | 1993-11-22 | 1995-02-15 | 石油大学(华东) | Holder of unhomogeneous drill core |
| CN2204421Y (en) * | 1994-07-30 | 1995-08-02 | 中国石油天然气总公司石油勘探开发科学研究院廊坊分院 | Device for measuring diffusion-coefficient of rock |
| CN2856971Y (en) * | 2005-12-09 | 2007-01-10 | 中国科学院地质与地球物理研究所 | Soft rock water saturation retainer |
-
2005
- 2005-12-09 CN CN2005101303341A patent/CN1979118B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5079948A (en) * | 1991-01-28 | 1992-01-14 | Mobil Oil Corporation | Method for conducting capillary pressure drainage and imbibition on a core sample of a porous rock |
| DE4213666A1 (en) * | 1992-04-22 | 1992-09-10 | Umwelt Und Wirtschaftsgeologie | Determining migration characteristics of pollutants in loose soil - by determining grain sizes and moisture content, saturating earth sample, determining porosity, determining filter optimum sieve mesh size and establishing throughput value |
| CN2164460Y (en) * | 1993-07-03 | 1994-05-11 | 江汉石油学院 | Rock core holder |
| CN2189744Y (en) * | 1993-11-22 | 1995-02-15 | 石油大学(华东) | Holder of unhomogeneous drill core |
| CN2204421Y (en) * | 1994-07-30 | 1995-08-02 | 中国石油天然气总公司石油勘探开发科学研究院廊坊分院 | Device for measuring diffusion-coefficient of rock |
| CN2856971Y (en) * | 2005-12-09 | 2007-01-10 | 中国科学院地质与地球物理研究所 | Soft rock water saturation retainer |
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| Publication number | Publication date |
|---|---|
| CN1979118A (en) | 2007-06-13 |
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Granted publication date: 20110216 Termination date: 20141209 |
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