CN103712852A - Rock lateral confinement compression resistance experiment sample clamp and experiment method - Google Patents
Rock lateral confinement compression resistance experiment sample clamp and experiment method Download PDFInfo
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- CN103712852A CN103712852A CN201310742062.5A CN201310742062A CN103712852A CN 103712852 A CN103712852 A CN 103712852A CN 201310742062 A CN201310742062 A CN 201310742062A CN 103712852 A CN103712852 A CN 103712852A
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Abstract
The invention discloses a rock lateral confinement compression resistance experiment sample clamp and an experiment method. The experiment sample clamp comprises a base, baffles and a compression block, wherein the four baffles with the same sizes are arranged above the base; the baffles are all provided with reinforcing plates and bolt through holes; the baffles can be fixedly connected with the base through bolts so as to achieve sample lateral confinement conditions; a rectangle compression block is arranged above a rectangular space defined by the baffles. An experiment sample is arranged inside the rectangular space and is compressed, different lateral confinement conditions of a rack can be effectively achieved by changing arrangement modes of the baffles on the base in the loading process, so that the damage situation of the underground engineering rack is judged. The clamp has great significance in instructing stability control on buildings and the rocks, and is simple in structure, easy to operate, small in size, low in cost and good in experiment effect.
Description
Technical field
The present invention relates to a kind of specimen holder and experimental technique, especially a kind of specimen holder and experimental technique that is applicable to compressive strength experiment under rock side limit condition.
Background technology
Underground works rock mass is generally in three-dimensional stress state; Such as narrow coal column under dam, tunnel, tunnel, coal mine etc., often there is asymmetric stress state in the border of these rock mass.Grasp the mechanical characteristic of rock under different stress, for the stability of buildings and rock mass, control and have great importance, as staying of the narrow coal column of gob-side entry driving under coal mine, establish and need in both sides, excavate respectively and support work at different times, grasp different times coal column mechanical characteristic, can be for roadway support work provides reliable basis, this just need to carry out in laboratory Rock Under Uniaxial Compression resistance to compression experiment.Compressive strength of rock experiment under Simple stress condition is that single shaft is limit without side; The experiment of compressive strength of rock under triaxial stress state is generally in side, to apply constant pressure, fixed displacement not, and be on the both direction of side simultaneously, exert pressure in couples, system complex, experimental cost are high.
Summary of the invention
Technical matters: the object of the invention is to overcome the weak point in prior art, provide a kind of simple in structure, easy to operate, be applicable to rock confined compressive strength experimental sample fixture and experimental technique.
Technical scheme: rock side limit resistance to compression experimental sample fixture of the present invention, comprise base, base is provided with four measure-alike baffle plates that surround coffin, the coffin top that baffle plate surrounds is provided with the rectangular parallelepiped briquetting of extrusion experiment sample, on baffle plate, be equipped with stiffening plate, the bottom of baffle plate is equipped with bolt hole, and described base is provided with corresponding with the bolt hole of four baffle plates respectively ladder bolt hole, is provided with the set bolt through bolt hole in ladder bolt hole.
The rock side limit resistance to compression experimental technique that uses above-mentioned experimental sample fixture, comprises the steps:
A, first prefabricated two regular cube rock samples, the coffin that specification surrounds with baffle plate is consistent, and prefabricated rock sample is wherein placed in to described base central authorities;
B, four described baffle plates are close to respectively and are placed on rock sample four sides all around, and be connected with base;
C, briquetting is placed in directly over rock sample;
D, by material experiment-machine to briquetting top imposed load, when reaching, set load and stop continuing to load, and keep setting load;
E, remove after a baffle plate in four baffle plates, continue to apply loading;
F, after rock sample destroys, stop loading, record load when now rock sample destroys;
G, observe and record rock mass damage form, the compressive strength that computing rock sample is prescribed a time limit three sides, and carry out analogy with underground works rock mass geology information parameter, judges in underground works coal and rock the destruction situation of country rock after coal mine roadway excavation with this;
The rock sample of h, taking-up destroyed, is placed in described base by another prefabricated piece regular cube rock sample central, repeating step b, c, d;
I, remove after two baffle plates relative in four baffle plates, continue to apply loading, until rock sample destroys, and the load while record destruction by material experiment-machine;
J, observe and record rock mass damage form, the compressive strength that computing rock sample is prescribed a time limit in two sides side, and carry out analogy with underground works rock mass geology information parameter, with this, judge the destruction situation of the narrow coal column of gob-side entry driving in underground works coal and rock.
Beneficial effect: owing to having adopted technique scheme, the present invention carries out simulated experiment by simple device to sample, easy and simple to handle; Specimen holder can be fixed on the arrangement form of base by baffle plate in change loading procedure, realize the different side limit forms such as rock sample one side side limit, two sides side limit, diverse in function; By recording compressive strength and the engineering rock mass analogy of rock sample under homonymy limit condition not, with this, judge the destruction situation in underground works coal and rock, to instructing the stability of buildings and rock mass to control significant; This specimen holder is simple in structure, processing ease, and small volume, cost is lower, and experiment effect is good, has in the art practicality widely.
accompanying drawing explanation:
Fig. 1 is front view of the present invention.
Fig. 2 is side view of the present invention.
Fig. 3 is baffle plate front elevation of the present invention.
Fig. 4 is base front elevation of the present invention.
Fig. 5 is briquetting vertical view of the present invention.
In figure: 1-base, 2-baffle plate, 3-briquetting, 4-stiffening plate, 5-bolt hole, 6-ladder bolt hole.
Embodiment
Below in conjunction with accompanying drawing, one embodiment of the present of invention are described further:
Rock side limit resistance to compression experimental sample fixture of the present invention, mainly consists of base 1, baffle plate 2, briquetting 3; Baffle plate 2 is four measure-alike baffle plates, is located on base 1, surrounds the coffin mould that can place experimental sample, and baffle plate 2 is connected by bolt and base 1, realizes the side limit condition of sample; The coffin top that baffle plate 2 surrounds is provided with the rectangular parallelepiped briquetting 3 of extrusion experiment sample, on baffle plate 2, be equipped with stiffening plate 4, the bottom of baffle plate 2 is equipped with bolt hole 5, described base 1 is provided with corresponding with the bolt hole 5 of four baffle plates 2 respectively ladder bolt hole 6, is provided with the set bolt through bolt hole 5 in ladder bolt hole 6.
Use the rock side limit resistance to compression experimental technique of above-mentioned experimental sample fixture:
First prefabricated two regular cube rock samples, specification is consistent with the coffin that baffle plate 2 surrounds, and a prefabricated rock sample is wherein placed in to described base 1 central authorities; Four described baffle plates 2 are close to respectively and are placed on rock sample four sides all around, with bolt and base 1, be connected; Briquetting 3 is placed in directly over rock sample; By material experiment-machine, to the briquetting 3 slow imposed loads in top, when reaching setting load, stop continuing to load, and keep setting load; Remove after a baffle plate in four baffle plates 2, continue Slow loading; After rock sample destroys, stop loading, record the load that now rock sample destroys; Observe and record rock mass damage form, the compressive strength that computing rock sample is prescribed a time limit three sides, and carry out analogy with underground works rock mass geology information parameter, with this, judge the destruction situation of the rear country rock of coal mine roadway excavation in underground works coal and rock;
The rock sample of destroyed in fixture is taken out, another prefabricated piece regular cube rock sample is placed in to described base 1 central authorities; Four described baffle plates 2 are close to respectively and are placed on rock sample four sides all around, and be connected with base 1; Briquetting 3 is placed in directly over rock sample; By material experiment-machine, to the briquetting 3 slow imposed loads in top, when reaching setting load, stop continuing to load, and keep setting load; Remove after two baffle plates relative in four baffle plates 2, continue Slow loading, until rock sample destroys; Observe and record rock mass damage form, and record failing load by material experiment-machine, the compressive strength that computing rock sample is prescribed a time limit in two sides side, and carry out analogy with underground works rock mass geology information parameter, with this, judge the destruction situation of the narrow coal column of gob-side entry driving in underground works coal and rock.
Claims (2)
1. a rock side is limit resistance to compression experimental sample fixture, it is characterized in that: it comprises base (1), base (1) is provided with four the measure-alike baffle plates (2) that surround coffin, the coffin top that baffle plate (2) surrounds is provided with the rectangular parallelepiped briquetting (3) of extrusion experiment sample, on baffle plate (2), be equipped with stiffening plate (4), the bottom of baffle plate (2) is equipped with bolt hole (5), described base (1) is provided with in corresponding with the bolt hole (5) of four baffle plates (2) respectively ladder bolt hole (6) ladder bolt hole (6) and is provided with the set bolt through bolt hole (5).
2. right to use requires a rock side limit resistance to compression experimental technique for experimental sample fixture described in 1, it is characterized in that, comprises the steps:
A, first prefabricated two regular cube rock samples, specification is consistent with the coffin that baffle plate (2) surrounds, and a prefabricated rock sample is wherein placed in to described base (1) central authorities;
B, four described baffle plates (2) are close to respectively and are placed on rock sample four sides all around, and be connected with base (1);
C, briquetting (3) is placed in directly over rock sample;
D, by material experiment-machine to briquetting (3) top imposed load, when reaching, set load and stop continuing to load, and keep setting load;
E, remove after a baffle plate in four baffle plates (2), continue to apply loading;
F, after rock sample destroys, stop loading, record load when now rock sample destroys;
G, observe and record rock mass damage form, the compressive strength that computing rock sample is prescribed a time limit three sides, and carry out analogy with underground works rock mass geology information parameter, judges in underground works coal and rock the destruction situation of country rock after coal mine roadway excavation with this;
The rock sample of h, taking-up destroyed, is placed in described base (1) central authorities, repeating step b, c, d by another prefabricated piece regular cube rock sample;
I, remove after two baffle plates relative in four baffle plates (2), continue to apply loading, until rock sample destroys, and the load while record destruction by material experiment-machine;
J, observe and record rock mass damage form, the compressive strength that computing rock sample is prescribed a time limit in two sides side, and carry out analogy with underground works rock mass geology information parameter, with this, judge the destruction situation of the narrow coal column of gob-side entry driving in underground works coal and rock.
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| CN201310742062.5A CN103712852B (en) | 2013-12-30 | 2013-12-30 | A kind of rock lateral confinement compression resistance experiment sample clamp and experimental technique |
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| CN201310742062.5A CN103712852B (en) | 2013-12-30 | 2013-12-30 | A kind of rock lateral confinement compression resistance experiment sample clamp and experimental technique |
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| CN103712852A true CN103712852A (en) | 2014-04-09 |
| CN103712852B CN103712852B (en) | 2016-03-16 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103900902A (en) * | 2014-04-16 | 2014-07-02 | 西南科技大学 | Laterally constrained rock uniaxial compression test device |
| CN106814024A (en) * | 2016-08-23 | 2017-06-09 | 中国辐射防护研究院 | One kind can absorb water lateral spacing constant volume sample box |
| CN106989995A (en) * | 2017-06-15 | 2017-07-28 | 东华理工大学 | A kind of adjustable Rock And Soil of lateral spacing condition vertically compresses ancillary test device |
| CN107957374A (en) * | 2017-12-27 | 2018-04-24 | 中国矿业大学 | Coal body loading property influences analogue experiment installation and method under a kind of constraints |
| CN109211668A (en) * | 2018-09-20 | 2019-01-15 | 中国矿业大学 | A kind of coal petrography assembly exploitation unloader test device and method |
| CN109297823A (en) * | 2018-10-31 | 2019-02-01 | 山东科技大学 | A kind of experimental rig and test method for simulating mining rock Progressive failure |
| CN109342165A (en) * | 2018-10-16 | 2019-02-15 | 浙江科技学院 | Containing weak intercalated layer and thickness is adjustable and the structural plane model of rigid constraint makes mold |
| CN109507023A (en) * | 2018-10-16 | 2019-03-22 | 浙江科技学院 | It is a kind of containing weak intercalated layer and with a variety of lateral confinement constraint types integral structure surface model production method |
| CN109520843A (en) * | 2019-01-17 | 2019-03-26 | 湖南科技大学 | A kind of device and application method measuring different depth rock crusher degree |
| CN111398037A (en) * | 2020-04-28 | 2020-07-10 | 河南理工大学 | Testing device for testing strength of single free surface of rock and using method |
| CN113092254A (en) * | 2021-04-07 | 2021-07-09 | 中国矿业大学 | Auxiliary experiment device and method for testing compressive strength of soil sample under different side limit conditions |
| CN113588412A (en) * | 2021-07-28 | 2021-11-02 | 东北大学 | Surrounding rock stability test fixture and test method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19518859A1 (en) * | 1995-05-23 | 1996-11-28 | Oldenburger Parkettwerk Gmbh | Establishing precise adhesion tensile strength of flooring pref. stone flooring prior to application of floor coating |
| DE102004055431A1 (en) * | 2004-11-15 | 2006-05-24 | Universität Kassel | Method for determining the mechanical properties of a building component made from stone or concrete comprises removing a cylindrical sample from the component, producing a testing body and further processing |
| CN101226184A (en) * | 2008-01-22 | 2008-07-23 | 重庆大学 | Terrane stress simulation clamping device |
| CN201110821Y (en) * | 2007-11-21 | 2008-09-03 | 重庆大学 | Rock plane strain instrument |
| CN201196634Y (en) * | 2007-10-30 | 2009-02-18 | 河南理工大学 | Coal rock, gas coupling osmosis bidirectional loading tester |
| CN203688351U (en) * | 2013-12-30 | 2014-07-02 | 中国矿业大学 | Rock lateral-confinement compression-resistance test sample clamp |
-
2013
- 2013-12-30 CN CN201310742062.5A patent/CN103712852B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19518859A1 (en) * | 1995-05-23 | 1996-11-28 | Oldenburger Parkettwerk Gmbh | Establishing precise adhesion tensile strength of flooring pref. stone flooring prior to application of floor coating |
| DE102004055431A1 (en) * | 2004-11-15 | 2006-05-24 | Universität Kassel | Method for determining the mechanical properties of a building component made from stone or concrete comprises removing a cylindrical sample from the component, producing a testing body and further processing |
| CN201196634Y (en) * | 2007-10-30 | 2009-02-18 | 河南理工大学 | Coal rock, gas coupling osmosis bidirectional loading tester |
| CN201110821Y (en) * | 2007-11-21 | 2008-09-03 | 重庆大学 | Rock plane strain instrument |
| CN101226184A (en) * | 2008-01-22 | 2008-07-23 | 重庆大学 | Terrane stress simulation clamping device |
| CN203688351U (en) * | 2013-12-30 | 2014-07-02 | 中国矿业大学 | Rock lateral-confinement compression-resistance test sample clamp |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103900902A (en) * | 2014-04-16 | 2014-07-02 | 西南科技大学 | Laterally constrained rock uniaxial compression test device |
| CN106814024A (en) * | 2016-08-23 | 2017-06-09 | 中国辐射防护研究院 | One kind can absorb water lateral spacing constant volume sample box |
| CN106989995A (en) * | 2017-06-15 | 2017-07-28 | 东华理工大学 | A kind of adjustable Rock And Soil of lateral spacing condition vertically compresses ancillary test device |
| CN107957374A (en) * | 2017-12-27 | 2018-04-24 | 中国矿业大学 | Coal body loading property influences analogue experiment installation and method under a kind of constraints |
| CN109211668A (en) * | 2018-09-20 | 2019-01-15 | 中国矿业大学 | A kind of coal petrography assembly exploitation unloader test device and method |
| CN109507023B (en) * | 2018-10-16 | 2021-09-17 | 浙江科技学院 | Method for manufacturing integrated structural surface sample with multiple lateral confinement constraint forms |
| CN109342165A (en) * | 2018-10-16 | 2019-02-15 | 浙江科技学院 | Containing weak intercalated layer and thickness is adjustable and the structural plane model of rigid constraint makes mold |
| CN109507023A (en) * | 2018-10-16 | 2019-03-22 | 浙江科技学院 | It is a kind of containing weak intercalated layer and with a variety of lateral confinement constraint types integral structure surface model production method |
| CN109342165B (en) * | 2018-10-16 | 2023-11-21 | 浙江科技学院 | Structure face model manufacturing mold with adjustable thickness and rigidity constraint and containing weak interlayer |
| CN109297823A (en) * | 2018-10-31 | 2019-02-01 | 山东科技大学 | A kind of experimental rig and test method for simulating mining rock Progressive failure |
| CN109520843A (en) * | 2019-01-17 | 2019-03-26 | 湖南科技大学 | A kind of device and application method measuring different depth rock crusher degree |
| CN109520843B (en) * | 2019-01-17 | 2024-03-08 | 湖南科技大学 | Device for measuring surrounding rock crushing degrees with different depths and use method |
| CN111398037B (en) * | 2020-04-28 | 2023-03-14 | 河南理工大学 | Testing device for testing strength of single free surface of rock and using method |
| CN111398037A (en) * | 2020-04-28 | 2020-07-10 | 河南理工大学 | Testing device for testing strength of single free surface of rock and using method |
| CN113092254A (en) * | 2021-04-07 | 2021-07-09 | 中国矿业大学 | Auxiliary experiment device and method for testing compressive strength of soil sample under different side limit conditions |
| CN113588412A (en) * | 2021-07-28 | 2021-11-02 | 东北大学 | Surrounding rock stability test fixture and test method |
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| CN103712852B (en) | 2016-03-16 |
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