CN101762229A - Rock uniaxial compression testing device in corrosion environment - Google Patents
Rock uniaxial compression testing device in corrosion environment Download PDFInfo
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- CN101762229A CN101762229A CN200910220698A CN200910220698A CN101762229A CN 101762229 A CN101762229 A CN 101762229A CN 200910220698 A CN200910220698 A CN 200910220698A CN 200910220698 A CN200910220698 A CN 200910220698A CN 101762229 A CN101762229 A CN 101762229A
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Abstract
The invention discloses a rock uniaxial compression testing device in the corrosion environment, which is characterized by comprising a guide stand column, a piled weight, a cross-shaped pressing plate, a corrosion-resistant container and a displacement dial gauge; when in an experiment, a test piece is arranged inside the corrosion-resistant container, and a pressing block and the cross-shaped pressing plate are sequentially arranged at the upper part of the test piece; the cross-shaped pressing plate is located by the guide stand column and is ensured to move only along the vertical direction; the piled weight is positioned on the cross-shaped pressing plate and is used for providing multi-stage loading force; and the displacement dial gauge is connected with the cross-shaped pressing plate and is used for recording the displacement of the cross-shaped pressing plate. The testing device has the characteristics of simple structure, convenient operation and production and the like, is low in cost, and is suitable for being widely popularized in the rock uniaxial compression test in the corrosion environment.
Description
Technical field
The present invention relates to a kind of rock sample deformation test device, relate in particular to a kind of rock uniaxial compression testing device in corrosion environment.
Background technology
In rich pool, for example seabed tunnel, mine working and other underground workss etc., underground water is the unavoidable phenomenon of underground works, rock mass always is immersed in the aqueous solution, contains the mechanical property important influence of mordant underground water for rock mass.Be in the rock mass under certain stress condition,, thereby have the time effect of macromechanics behavior-be so-called rheological effect because the existence of underground water corrosion effect can cause the deterioration of the mechanical property of rock immanent structure.Although rock rheology is theoretical fairly perfect at present, these theories have mainly been considered the Rheology Mechanism character of rock self, and the Rheological Study that coupling causes for corrosion-stress is also quite not enough.And existing rheology equipment is also relatively expensive mostly, has restricted carrying out smoothly and carrying out of aqueous corrosion rheological test.The convenient easy-to-use corrosion rheological test device of research becomes one major issue to be solved, and wherein stability of Jia Zaiing and simplification are keys wherein.So the test of rock uniaxial compression is tested to load and stablized under a kind of etchant solution environment, the proving installation of simple structure is badly in need of being developed.
Summary of the invention
The present invention is directed to the proposition of above problem, and develop the device of the time effect of the rock sample that corrosion effect the caused distortion of solution under a kind of test loading environment that guarantees the easy to operate stability that guarantees easily loading procedure simultaneously.The technological means that the present invention adopts is as follows:
A kind of rock uniaxial compression testing device in corrosion environment, its feature comprises: guide upright post, the heavy counterweight of heap, cross-shaped pressing plate, corrosion-resistant container and displacement clock gauge;
During test test specimen is placed in the corrosion-resistant container, its top is placed briquetting and cross-shaped pressing plate successively; The described cross-shaped pressing plate of crossing positions by guide upright post, and it can only be moved along vertical direction; The heavy counterweight of described heap is placed on the cross-shaped pressing plate, is used to provide the power of multi-stage loading; Described displacement clock gauge is connected with cross-shaped pressing plate, uses and the displacement that writes down cross-shaped pressing plate.
Have with the corresponding through hole of the xsect of guide upright post on four branch plates of described cross-shaped pressing plate; The guide upright post that will lead during use be fixed on corrosion-resistant container around, by described through hole cross-shaped pressing plate is movably connected on the guide upright post.
Bottom at proving installation is provided with base, is used to carry corrosion-resistant container and guide upright post, and described base is provided with 4 supporting legs, and one of them supporting leg has the leveling that height adjustment bolt is carried out base.
Described briquetting is divided into upper holder block and lower lock block, and wherein lower lock block is white steel; Described upper holder block and lower lock block are fixed as one and are I-shaped.
Between test specimen and corrosion-resistant container, be provided with backing plate.
Owing to adopted technique scheme, proving installation provided by the invention is with the storage tank of corrosion-resistant PVC plate as solution, adopt criss-cross carrying pressing plate, pressing plate is passed by 4 guide upright posts, adding counterweight by 4 guide upright posts on pressing plate increases the weight of, thereby realize the loading to rock sample, pressing plate is pressed on the rock sample by the link block structure.The displacement clock gauge is fixed on the guide upright post, can test the rock sample distortion.Because it is simple in structure, is convenient to produce, and with low costly is suitable for extensive popularization.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention;
Fig. 2 is the structural representation of cross-shaped pressing plate in the embodiment of the invention;
The load-displacement curve of Fig. 3 for testing in the embodiment of the invention;
The time-displacement curve of Fig. 4 for testing in the embodiment of the invention;
Fig. 5 is the deformation time curve of rock under sulfuric acid and the hydrochloric acid effect in the embodiment of the invention.
Among the figure: 1, guide upright post, 2, the heavy counterweight of heap, 3, cross-shaped pressing plate, 4, corrosion-resistant container, 5, upper holder block, 6, lower lock block, 7, the displacement clock gauge, 8, base, 9, test specimen, 10, backing plate.
Embodiment
The principle of work of this proving installation is that cross-shaped pressing plate 3 mainly is pressed on the test specimen 9 by the link block structure that guide upright post 1 and upper holder block 5, lower lock block 6 are formed, and stacks the heavy counterweight 2 of heap above the cross-shaped pressing plate 3 gradually, thereby realizes the loading step by step of test specimen.In the loading procedures at different levels, test specimen is immersed in the solution, lies on the backing plate 10 of bottom surface of corrosion-resistant container 4, thereby obtains the time effect of test specimen under the corrosive attack.
In this proving installation, guide upright post 1 is used for cross-shaped pressing plate is positioned, and carries out downwards reposefully after cross-shaped pressing plate is loaded as shown in Figure 1.Pile heavy counterweight 2, be used to provide the power of multi-stage loading.Cross-shaped pressing plate 3, its top can be born the heavy counterweight of heap, and the bottom connects briquetting, and pressure is provided.Corrosion-resistant container 4 (the sharp PVC corrosion-resistant container that adopts of this enforcement) is used for storing corrosive solution, and the test specimen of pressurized is placed wherein.Briquetting is divided into upper holder block 5 and test specimen lower lock block 6, be connected between cross-shaped pressing plate and the rock sample, play the Load Transfer effect, 6 lower lock blocks adopt corrosion resistant white steel, can immerse in the solution, and upper holder block 5 is an ordinary steel, last lower lock block links into an integrated entity, be " I-shaped " and guarantee that institute adds load and test specimen Surface Vertical, so both satisfied the condition of corrosion resistance, saved material again and simplified technology.Displacement clock gauge 7 carries out the measurement of loading procedure test piece deformation.Base 8 is born entire equipment weight reposefully, and keeps the stable of entire equipment.Wherein guide upright post 1 is just guaranteed to move cross-shaped pressing plate 3 along vertical direction (present embodiment is adopted and to have with the corresponding through hole of the xsect of guide upright post 1 (as shown in Figure 2) on four branch plates of cross-shaped pressing plate 3, the guide upright post 1 that will lead during use be vertically fixed on corrosion-resistant container 4 around, by described through hole cross-shaped pressing plate 3 is movably connected in technical scheme on the guide upright post 1, can adopt also that (sliding fast or pulley promptly is set to match with the slide rail on each guide upright post 1 as: the form of slide rail on four branch plates of cross-shaped pressing plate 3, keep cross-shaped pressing plate 3 levels to move downward (not looking among the figure) because of it is a kind of fit form well known to those skilled in the art.) technical scheme.
Be implemented as follows: rock sample is placed in the corrosion-resistant container by backing plate, is immersed in corrosive solution to be measured.The load of the cross-shaped pressing plate of being come by upper and lower briquetting transmission is born on top, and cross-shaped pressing plate is by 4 guide upright post location, and the maintenance level, stacks counterweight above at 4 root post places, and load is provided.Owing to adopt cross-shaped pressing plate and 4 guide upright posts to guarantee the stability of installing preferably.The displacement clock gauge is fixed by guide upright post, and gauge head contacts with the cross-shaped pressing plate upper surface, and the displacement of actual measurement cross-shaped pressing plate is to measure the distortion of test specimen indirectly.Base adopts 4 supporting legs, and one of them has height adjustment bolt, can be used to carry out the leveling of base.The supporting leg bolt of regulating earlier base when testing makes the base level, and four guide upright posts are connected on the base by bolt, and the corrosion-resistant container of PVC is placed on the base, pours certain specific solution in container into.The rock sample (guaranteeing to be up and down the plane) of processing is placed on the white billet in the container, is immersed in the solution.Upper and lower briquetting is by being threaded, and presses on test specimen, puts cross-shaped pressing plate above, and cross-shaped pressing plate keeps level by the root guide upright post.Fixed displacement clock gauge on guide upright post, and put counterweight symmetrically at four root post positions of cross-shaped pressing plate according to load requirement.By increasing counterweight, realize applying of multistage load, every grade of load keeps the regular hour (as 10 days), records the distortion that test specimen causes because of etchant solution by displacement meter, thereby records its time effect.During off-test, unload the bottom offset clock gauge earlier, remove counterweight and cross-shaped pressing plate then, and briquetting and test specimen.Then, shift out corrosion-resistant container 4, residual solution can be outwelled.Enumerating two examples below is specifically described:
Example 1: carry out multistage load time effect test
At first the rock sample test specimen of processing and preparing band precrack to be tested is placed in the device of Fig. 1, be immersed in 5% sulfuric acid solution, by stacking counterweight test specimen is loaded, earlier load is kept being stabilized in 1Ma, 5 days at interval, increase 1Ma successively, be increased to 8Mpa. always in this process, adopt the distortion of displacement clock gauge monitoring test specimen to carry out record always.The load-displacement curve that finally obtains test as shown in Figure 3 with time-displacement curve as shown in Figure 4.
Example 2: the rock stream change effect of different etchant solutions contrast under the single-stage load
Below be a kind of rock sample under the fixing load 15MPa (single-stage load) respectively under the effect of sulfuric acid of 8% hydrochloric acid and 8%, along with the time displacement deformation is carried out record, finally obtain curve as shown in Figure 5.Curve by Fig. 5 can analyze under constant load, and rock is under the effect of sulfuric acid, along with the anamorphic effect of time is obvious; And under the hydrochloric acid effect, along with the anamorphic effect of time is not obvious.
By being shown by example 1 and example 2, the rock rheology that this device can cause corrosion effect is effectively measured.
The above; only be the preferable embodiment of the present invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, all should be encompassed within protection scope of the present invention.
Claims (5)
1. rock uniaxial compression testing device in corrosion environment, its feature comprises: guide upright post (1), the heavy counterweight (2) of heap, cross-shaped pressing plate (3), corrosion-resistant container (4) and displacement clock gauge (7);
During test test specimen (9) is placed in the corrosion-resistant container (4), its top is placed briquetting and cross-shaped pressing plate (3) successively; The described cross-shaped pressing plate (3) of crossing positions by guide upright post (1), and it can only be moved along vertical direction; The heavy counterweight of described heap (2) is placed on the cross-shaped pressing plate (3), is used to provide the power of multi-stage loading; The same cross-shaped pressing plate of described displacement clock gauge (7) (3) is connected, and uses and the displacement that writes down cross-shaped pressing plate (3).
2. rock uniaxial compression testing device in corrosion environment according to claim 1 is characterized in that having on four branch plates of described cross-shaped pressing plate (3) the corresponding through hole of xsect of same guide upright post (1); The guide upright post (1) that will lead during use be fixed on corrosion-resistant container (4) around, by described through hole cross-shaped pressing plate (3) is movably connected on the guide upright post (1).
3. rock uniaxial compression testing device in corrosion environment according to claim 1, it is characterized in that being provided with base (8) in the bottom of proving installation, be used to carry corrosion-resistant container (4) and guide upright post (1), described base (8) is provided with 4 supporting legs, and one of them supporting leg has the leveling that height adjustment bolt is carried out base.
4. rock uniaxial compression testing device in corrosion environment according to claim 1 is characterized in that described briquetting is divided into upper holder block (5) and lower lock block (6), and wherein lower lock block (6) is white steel; Described upper holder block (5) and lower lock block (6) are fixed as one and are I-shaped.
5. rock uniaxial compression testing device in corrosion environment according to claim 1 is characterized in that being provided with backing plate (10) between test specimen (9) and corrosion-resistant container (4).
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910220698A CN101762229A (en) | 2009-12-10 | 2009-12-10 | Rock uniaxial compression testing device in corrosion environment |
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| CN200910220698A CN101762229A (en) | 2009-12-10 | 2009-12-10 | Rock uniaxial compression testing device in corrosion environment |
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| CN101762229A true CN101762229A (en) | 2010-06-30 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102680322A (en) * | 2012-05-24 | 2012-09-19 | 天津英利新能源有限公司 | Silicon wafer detector |
| CN103075988A (en) * | 2013-01-24 | 2013-05-01 | 苏州凯蒂亚半导体制造设备有限公司 | Device for rapidly detecting inner diameter and height of magnetic shoe housing assembly |
| CN103925866A (en) * | 2014-03-20 | 2014-07-16 | 中冶集团武汉勘察研究院有限公司 | Method for measuring rock specimen deformation |
| CN109238921A (en) * | 2018-08-31 | 2019-01-18 | 华北科技学院 | Mineral rheology disturbance effect and step stress test device |
| CN109490092A (en) * | 2018-12-20 | 2019-03-19 | 四川正升环保科技有限公司 | A kind of sxemiquantitative unconfined compressive strength tester |
| CN110595997A (en) * | 2019-09-27 | 2019-12-20 | 广东中烟工业有限责任公司 | Adhesive strength detection device for soft cigarette package hardening cigarette case and evaluation method for adhesive performance of soft cigarette package hardening cigarette case |
| CN112730096A (en) * | 2021-01-22 | 2021-04-30 | 四川大学 | Rock rheology test system |
-
2009
- 2009-12-10 CN CN200910220698A patent/CN101762229A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102680322A (en) * | 2012-05-24 | 2012-09-19 | 天津英利新能源有限公司 | Silicon wafer detector |
| CN103075988A (en) * | 2013-01-24 | 2013-05-01 | 苏州凯蒂亚半导体制造设备有限公司 | Device for rapidly detecting inner diameter and height of magnetic shoe housing assembly |
| CN103925866A (en) * | 2014-03-20 | 2014-07-16 | 中冶集团武汉勘察研究院有限公司 | Method for measuring rock specimen deformation |
| CN103925866B (en) * | 2014-03-20 | 2016-08-17 | 中冶集团武汉勘察研究院有限公司 | A kind of measurement rock sample deformation method |
| CN109238921A (en) * | 2018-08-31 | 2019-01-18 | 华北科技学院 | Mineral rheology disturbance effect and step stress test device |
| CN109238921B (en) * | 2018-08-31 | 2021-04-23 | 华北科技学院 | Rock rheological disturbance effect and step-by-step loading test device |
| CN109490092A (en) * | 2018-12-20 | 2019-03-19 | 四川正升环保科技有限公司 | A kind of sxemiquantitative unconfined compressive strength tester |
| CN110595997A (en) * | 2019-09-27 | 2019-12-20 | 广东中烟工业有限责任公司 | Adhesive strength detection device for soft cigarette package hardening cigarette case and evaluation method for adhesive performance of soft cigarette package hardening cigarette case |
| CN112730096A (en) * | 2021-01-22 | 2021-04-30 | 四川大学 | Rock rheology test system |
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Application publication date: 20100630 |