CN103994899A - On-site coring device and method for rock true triaxial test - Google Patents
On-site coring device and method for rock true triaxial test Download PDFInfo
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- CN103994899A CN103994899A CN201410209887.5A CN201410209887A CN103994899A CN 103994899 A CN103994899 A CN 103994899A CN 201410209887 A CN201410209887 A CN 201410209887A CN 103994899 A CN103994899 A CN 103994899A
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Abstract
The invention relates to an on-site coring device and method for a rock true triaxial test. The on-site coring device comprises a fixed framework, a cutting cylinder wall, a coring cylinder, a power system and a chain type cutting system, wherein the power system is arranged on the fixed framework, the chain type cutting system is arranged on the coring cylinder, the bottom end of the fixed framework is connected with the cutting cylinder wall and then is arranged on the coring cylinder, and the power system transfers power to the chain type cutting system, thus cutting rocks by the chain type cutting system. The device is simple in structure, convenient to disassemble, and easy to core in field, thus having extremely high popularization values.
Description
Technical field
The present invention relates to rock apparatus field, be specifically related to a kind of on-the-spot coring device and method for rock true triaxial test.
Background technology
True triaxial test is the triaxial compression test making under the stress assembled state of rock sample in three principle stresses unequal (being σ 1> σ 2> σ 3).True triaxial test can be studied the impact of intermediate principal stress (σ 2) on rock deformation and strength characteristics.
For constructing tunnel, under high-ground stress condition underground engineering wall rock before excavation in triaxiality state, wherein the principle stress of certain 1～2 direction is very high, after excavation, country rock is two-dimensional state of stress by triaxiality state-transition, in the situation that rock matter is more crisp, and likely energy-producing sharply release, destruction is launched in country rock generation splitting, the rock burst that Here it is it has often been said.In addition, the excavation of periphery cavern, likely cause and excavated the concentrated aggravation of surrounding rock of chamber stress, cause excavating surrounding rock of chamber after excavation a period of time, energy release rate sharply increases and rock burst occurs, and causes great economic asset loss, therefore, fully understand the true three-axis force of rock and learn characteristic for guaranteeing safety for tunnel engineering, reduce the construction line-putting and there is important Research Significance.
At present, still immature for the experimental study of true three axles, core and difficulty thereof are got in square test specimen scene, and traditional coring device is too heavy, get core cost higher, and sampling operation is loaded down with trivial details, is difficult to meet the request for utilization of true triaxial test.
Summary of the invention
The object of the invention is to design a kind of on-the-spot coring device for rock true triaxial test, this installs convenient disassembly, is easy to carry about with one, and gets core simple to operate easy to learn, is particularly suitable for field sampling, greatly improves and gets core success ratio and operating efficiency.
The present invention adopts following technical proposals:
A kind of on-the-spot coring device for rock true triaxial test, comprise fixed frame, cutting barrel, coring tube, power system and chain-type diced system, power system is arranged on fixed frame, chain-type diced system is arranged on coring tube, fixed frame bottom is arranged on coring tube after being connected with cutting barrel, power system is passed to chain-type diced system by power, realizes the cutting of chain-type diced system to rock.
Preferably, described power system comprises the engine that is arranged at fixed frame top, and engine shaft is connected with carousel gear, carousel gear and the orthogonal gear engagement that is arranged at the middle part of fixed frame, and carousel gear is also fixedly connected with active chain pitch wheel.
Preferably, described orthogonal gear is four groups, and orthogonal gear is vertical rotational component by the power-conversion that horizontally rotates of carousel gear.
Preferably, described four groups of orthogonal gear drive by carousel gear, and the rotating speed of having realized four groups of orthogonal gear is consistent.
Preferably, described chain-type diced system comprises chain and the driven chain pitch wheel that is arranged at coring tube bottom, and chain is meshed with active chain pitch wheel and driven chain pitch wheel respectively.
Preferably, described chain-type diced system also comprises the equipment gear that is arranged at coring tube middle part, equipment gear and chain engagement.
Preferably, described fixed frame is connected with cutting barrel by cutterhead set bolt, and described cutting barrel is four groups.
Preferably, described chain is sawtooth chain.
Preferably, described coring tube is square.
Utilization is for a sampling method for the on-the-spot coring device of rock true triaxial test, and step is as follows:
(1) engine is fixed on to framework upper, orthogonal gear is arranged to fixed frame middle part, and guarantees carousel gear and orthogonal gear good engagement, then four groups of cutting barrels are fixed on to fixed frame bottom, debug this device to running well;
(2) this device is positioned over to rock surface to be got, determines behind sample position, connect generator power supply, hand-held fixed frame presses down, and carries out rock sample on-site cutting;
(3) when four groups of cutting barrels of coring tube run through sillar completely, close generator power supply, unclamp the cutterhead set bolt of cutting barrel, make fixed frame separated with cutting barrel, four groups of cutting barrels are unloaded, carefully deposit true three axle rock samples;
(4) repeat aforesaid operations, carry out the scene of other sillars and get core.
The invention has the beneficial effects as follows:
(1) this apparatus structure is simple, and convenient disassembly is easy to obtain square core at the scene.
It is vertical rotary component that (2) four groups of orthogonal gear will horizontally rotate power-conversion, drives four groups of chains synchronously to rotate, and then has realized the four sides cutting to rock.Four groups of chains synchronously cut rock, and cutting speed is consistent, have higher cutting speed.
(3) thickness of chain is less than the thickness of existing cutterhead, has reduced Cutting Drag, has improved cutting speed.
Accompanying drawing explanation:
Fig. 1 is structural drawing of the present invention;
Fig. 2 is exploded view of the present invention;
Fig. 3 is transmission schematic diagram of the present invention;
Wherein: 1, fixed frame, 2, engine, 3, carousel gear, 4, orthogonal gear rotating shaft, 5, cutterhead set bolt, 6, chain pitch wheel initiatively, 7, orthogonal gear, 8, chain, 9, equipment gear, 10, cutting barrel, 11, driven chain pitch wheel, 12, coring tube.
Embodiment:
Embodiment 1: a kind of on-the-spot coring device for rock true triaxial test, its structure is as Figure 1-3: comprise fixed frame 1, cutting barrel 10, coring tube 12, power system and chain-type diced system, power system is arranged on fixed frame 1, chain-type diced system is arranged on coring tube 12, fixed frame 1 bottom is arranged on coring tube 12 after being connected with cutting barrel 10, power system is passed to chain-type diced system by power, realizes the cutting of chain-type diced system to rock.
Described power system comprises the engine 2 that is arranged at fixed frame 1 top, and engine shaft is connected with carousel gear 3, carousel gear 3 be positioned in orthogonal gear rotating shaft 4 orthogonal gear 7 engagements, orthogonal gear rotating shaft 4 is positioned at fixed frame 1 middle part; Carousel gear 3 is also fixedly connected with active chain pitch wheel 6.
Described orthogonal gear 7 is four groups, and orthogonal gear 7 is vertical rotational component by the power-conversion that horizontally rotates of carousel gear 3.
Described four groups of orthogonal gear 7 drive by carousel gear 3, and the rotating speed of having realized four groups of orthogonal gear 7 is consistent.
Described chain-type diced system comprises chain 8 and the driven chain pitch wheel 11 that is arranged at coring tube 12 bottoms, and chain 8 is meshed with active chain pitch wheel 6 and driven chain pitch wheel 11 respectively.
Described chain-type diced system also comprises the equipment gear 9 that is arranged at coring tube middle part, equipment gear 9 and chain 8 engagements, and the impacts of extraneous factor on chain scroll-diced such as reduction is rocked, vibrations, strengthen stability.
Described fixed frame 1 is connected with cutting barrel 10 by cutterhead set bolt 5; Described cutting barrel 10 is four groups.
Described chain 8 is sawtooth chain.
Described coring tube 12 is square.
Utilization is for a sampling method for the on-the-spot coring device of rock true triaxial test, and step is as follows:
(1) engine 2 is fixed on to framework upper, orthogonal gear 7 is arranged in the orthogonal gear rotating shaft 4 of fixed frame, and guarantee carousel gear 3 and orthogonal gear 7 good engagement, then four groups of cutting barrels are arranged on to fixed frame 1 bottom, debug this device to running well;
(2) this device is positioned over to rock surface to be got, determines behind sample position, connect the power supply of generator 2, hand-held fixed frame 1 presses down, and carries out rock sample on-site cutting;
(3) when four groups of cutting barrels of coring tube run through sillar completely, close generator power supply, unclamp the cutterhead set bolt 5 of cutting barrel 10, make fixed frame 1 separated with cutting barrel 10, four groups of cutting barrels are unloaded, carefully deposit true three axle rock samples;
(4) repeat aforesaid operations, carry out the scene of other sillars and get core.
Principle of work of the present invention is:
Motor 2 drives carousel gear 3 to rotate, carousel gear 3 is meshed with orthogonal gear 7, drives orthogonal gear 7 to rotate, and orthogonal gear 7 is fixedly connected with active chain pitch wheel 6, initiatively chain pitch wheel 6 drives chain 8 to rotate, and chain 8 drives equipment gear 9 and driven chain pitch wheel 11 to rotate.
Chain 8 is sawtooth chain, conveniently rock is cut.
This apparatus structure is simple, and convenient disassembly is easy to obtain square core at the scene.
Four groups of orthogonal gear 7 are vertical rotary component by the power-conversion that horizontally rotates of carousel gear 3, drive four groups of chains 8 synchronously to rotate, and then have realized the four sides cutting to rock.Four groups of chains 8 synchronously cut rock, and cutting speed is consistent, can guarantee the integrality of square core.
The thickness of chain 8 is less than the thickness of existing cutterhead, has reduced Cutting Drag, has improved cutting speed.
Although above-mentioned, by reference to the accompanying drawings the specific embodiment of the present invention is described; but be not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection scope of the present invention.
Claims (10)
1. the on-the-spot coring device for rock true triaxial test, it is characterized in that: comprise fixed frame, cutting barrel, coring tube, power system and chain-type diced system, power system is arranged on fixed frame, chain-type diced system is arranged on coring tube, fixed frame bottom is arranged on coring tube after being connected with cutting barrel, power system is passed to chain-type diced system by power, realizes the cutting of chain-type diced system to rock.
2. the on-the-spot coring device for rock true triaxial test according to claim 1, it is characterized in that: described power system comprises the engine that is arranged at fixed frame top, engine shaft is connected with carousel gear, carousel gear and the orthogonal gear engagement that is arranged at the middle part of fixed frame, carousel gear is also fixedly connected with active chain pitch wheel.
3. the on-the-spot coring device for rock true triaxial test according to claim 2, is characterized in that: described orthogonal gear is four groups, and orthogonal gear is vertical rotational component by the power-conversion that horizontally rotates of carousel gear.
4. the on-the-spot coring device for rock true triaxial test according to claim 3, is characterized in that: described four groups of orthogonal gear drive by carousel gear, and the rotating speed of having realized four groups of orthogonal gear is consistent.
5. the on-the-spot coring device for rock true triaxial test according to claim 1, it is characterized in that: described chain-type diced system comprises chain and the driven chain pitch wheel that is arranged at coring tube bottom, and chain is meshed with active chain pitch wheel and driven chain pitch wheel respectively.
6. the on-the-spot coring device for rock true triaxial test according to claim 5, is characterized in that: described chain-type diced system also comprises the equipment gear that is arranged at coring tube middle part, equipment gear and chain engagement.
7. the on-the-spot coring device for rock true triaxial test according to claim 1, is characterized in that: described fixed frame is connected with cutting barrel by cutterhead set bolt; Described cutting barrel is four groups.
8. the on-the-spot coring device for rock true triaxial test according to claim 5, is characterized in that: described chain is sawtooth chain.
9. the on-the-spot coring device for rock true triaxial test according to claim 1, is characterized in that: described coring tube is square.
10. utilization is for a sampling method for the on-the-spot coring device of rock true triaxial test, and step is as follows:
(1) engine is fixed on to framework upper, orthogonal gear is arranged to fixed frame middle part, and guarantees carousel gear and orthogonal gear good engagement, then four groups of cutting barrels are fixed on to fixed frame bottom, debug this device to running well;
(2) this device is positioned over to rock surface to be got, determines behind sample position, connect generator power supply, hand-held fixed frame presses down, and carries out rock sample on-site cutting;
(3) when four groups of cutting barrels of coring tube run through sillar completely, close generator power supply, unclamp the cutterhead set bolt of cutting barrel, make fixed frame separated with cutting barrel, four groups of cutting barrels are unloaded, carefully deposit true three axle rock samples;
(4) repeat aforesaid operations, carry out the scene of other sillars and get core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410209887.5A CN103994899B (en) | 2014-05-16 | 2014-05-16 | A kind of on-the-spot coring device for rock true triaxial test and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410209887.5A CN103994899B (en) | 2014-05-16 | 2014-05-16 | A kind of on-the-spot coring device for rock true triaxial test and method |
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| Publication Number | Publication Date |
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| CN103994899A true CN103994899A (en) | 2014-08-20 |
| CN103994899B CN103994899B (en) | 2016-03-02 |
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| CN201410209887.5A Expired - Fee Related CN103994899B (en) | 2014-05-16 | 2014-05-16 | A kind of on-the-spot coring device for rock true triaxial test and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106198934A (en) * | 2016-09-14 | 2016-12-07 | 山东大学 | Block and the assay device of crack gushing water and test method are fallen in the landslide of a kind of crack rock |
| US11448576B2 (en) | 2016-07-06 | 2022-09-20 | Shandong University | Multifunctional true triaxial rock drilling test system and method |
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|---|---|---|---|---|
| US5189939A (en) * | 1991-12-23 | 1993-03-02 | Carbonic Reserves, Inc. | Apparatus for cutting blocks of ice |
| DE19548677A1 (en) * | 1995-12-18 | 1997-06-19 | Mannesmann Ag | Procedure for machine cutting to lengths of long workpieces |
| US20050172733A1 (en) * | 2004-02-11 | 2005-08-11 | Veris Technologies, Inc. | System and method for mobile soil sampling |
| CN102445362A (en) * | 2011-09-28 | 2012-05-09 | 中国水电顾问集团华东勘测设计研究院 | Method for sampling jointed rock mass |
| CN202853928U (en) * | 2012-10-27 | 2013-04-03 | 薛海 | Device for making mine experimental rock sample |
| CN103448148A (en) * | 2012-05-31 | 2013-12-18 | 安德烈亚斯.斯蒂尔两合公司 | Cutting chain for cutting mineral or metal materials |
| CN203881559U (en) * | 2014-05-16 | 2014-10-15 | 山东大学 | On-site coring device for true triaxial test of rocks |
-
2014
- 2014-05-16 CN CN201410209887.5A patent/CN103994899B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5189939A (en) * | 1991-12-23 | 1993-03-02 | Carbonic Reserves, Inc. | Apparatus for cutting blocks of ice |
| DE19548677A1 (en) * | 1995-12-18 | 1997-06-19 | Mannesmann Ag | Procedure for machine cutting to lengths of long workpieces |
| US20050172733A1 (en) * | 2004-02-11 | 2005-08-11 | Veris Technologies, Inc. | System and method for mobile soil sampling |
| CN102445362A (en) * | 2011-09-28 | 2012-05-09 | 中国水电顾问集团华东勘测设计研究院 | Method for sampling jointed rock mass |
| CN103448148A (en) * | 2012-05-31 | 2013-12-18 | 安德烈亚斯.斯蒂尔两合公司 | Cutting chain for cutting mineral or metal materials |
| CN202853928U (en) * | 2012-10-27 | 2013-04-03 | 薛海 | Device for making mine experimental rock sample |
| CN203881559U (en) * | 2014-05-16 | 2014-10-15 | 山东大学 | On-site coring device for true triaxial test of rocks |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11448576B2 (en) | 2016-07-06 | 2022-09-20 | Shandong University | Multifunctional true triaxial rock drilling test system and method |
| CN106198934A (en) * | 2016-09-14 | 2016-12-07 | 山东大学 | Block and the assay device of crack gushing water and test method are fallen in the landslide of a kind of crack rock |
| CN106198934B (en) * | 2016-09-14 | 2018-01-19 | 山东大学 | The experimental rig and test method of a kind of crack rock landslide chip off-falling and crack gushing water |
| US10768083B2 (en) | 2016-09-14 | 2020-09-08 | Shandong University | Test device and test method of fractured rock mass collapse and rockfall and fracture water inrush |
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| CN103994899B (en) | 2016-03-02 |
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Granted publication date: 20160302 |