CN110043210A - Rock body drilled samples stress fidelity device and method under a kind of high-ground stress - Google Patents
Rock body drilled samples stress fidelity device and method under a kind of high-ground stress Download PDFInfo
- Publication number
- CN110043210A CN110043210A CN201910369133.9A CN201910369133A CN110043210A CN 110043210 A CN110043210 A CN 110043210A CN 201910369133 A CN201910369133 A CN 201910369133A CN 110043210 A CN110043210 A CN 110043210A
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- China
- Prior art keywords
- rock
- drilling machine
- stress
- spring
- drill bit
- Prior art date
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/02—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by mechanically taking samples of the soil
Abstract
The invention patent relates to rock body drilleds under a kind of high-ground stress to sample stress fidelity device and method, it includes drill bit, and the sawtooth for Cutting Rock is provided at the top of the drill bit；The drill bit is mounted on the head of drilling machine, and threaded rod is provided through inside the drilling machine, and the drilling machine is internally provided with the high-intensitive blade for Cutting Rock, and the inside of the drilling machine is equipped with the rotating bar through high-intensitive blade；The inside of the drilling machine is simultaneously equipped with steel pole through the position of drill bit, another end of the steel pole is equipped with the first spring, the other end of first spring is connected with sphere, the other end of the sphere and the convex portion of serrated slot are engaged, the both ends of the serrated slot have been evenly arranged second spring respectively, and the other end and the fixed baffle of the second spring are engaged.The device cooperates internal blade to take out the rock mass in stress fidelity under high-ground stress state by special drilling machine.
Description
Technical field
The present invention relates to rock body drilleds under a kind of high-ground stress to sample stress fidelity device and method, belongs to rock body drilled and takes
Sample technical field.
Background technique
With the increasingly reduction of earth surface and underground shallow part resource, domestic and international mineral products are had become into underground deep exploitation
The inexorable trend of resource exploitation.The problems of rock mechanics generated in deep mining engineering is current Mining At Home And Abroad and rock power
The focus of educational circles's research, the rock-core disking phenomenon for how solving to occur in deep mining is the highly difficult class that we face
Topic.Therefore, set about research how to solve to prevent rock-core disking phenomenon in deep mining it is imperative.
Summary of the invention
Technical problem to be solved by the invention is to provide rock body drilleds under a kind of high-ground stress to sample stress fidelity device
And method, the device cooperate internal blade to take out the rock mass in stress fidelity under high-ground stress state by special drilling machine.
In order to solve the above-mentioned technical problem, the present invention proposes following technical scheme: rock body drilled takes under a kind of high-ground stress
Sample stress fidelity device, it includes drill bit, and the sawtooth for Cutting Rock is provided at the top of the drill bit；The drill bit installation
Threaded rod is provided through inside the head of drilling machine, the drilling machine, the drilling machine is internally provided with for cutting rock
The high-intensitive blade of body, the inside of the drilling machine are equipped with the rotating bar through high-intensitive blade；The inside of the drilling machine
And steel pole is installed through the position of drill bit, another end of the steel pole is equipped with the first spring, first spring it is another
One end is connected with sphere, and the other end of the sphere and the convex portion of serrated slot are engaged, the both ends point of the serrated slot
It is not evenly arranged second spring, the other end and the fixed baffle of the second spring are engaged.
The drill bit is composed using splicing structure, and can be dismantled；The drill bit has certain thickness.
The drill bit side wall is provided with threaded hole, and the threaded hole is threadedly coupled with threaded rod composition, and drill bit is removable
It unloads and is fixed on drill head.
Shape inside the drilling machine for the high-intensitive blade of Cutting Rock is rectangle, and length is equal in drilling machine
The half of diameter, width are less than the ring width of drilling machine.
The top end diameter of the steel pole is greater than the diameter at intermediate position.
Serrated slot both ends convex portion is equidistant, and initial convex portion internal diameter is less than the diameter of sphere.
The second spring uses a variety of varying strengths, and generates pressure to steel pole.
The application method of rock body drilled sampling stress fidelity device, feature exist under a kind of high-ground stress described in any one
In it the following steps are included:
Step1: choosing one piece of more smooth free face on massif, and the area of selection is greater than the face that will take out rock mass
Product, being cut away on the surface layer for choosing area by the rock of weathering with cutting machine reveals internal rock；
Step2: starting to drill with drilling machine to rock mass deep, and while drilling, the steel pole through drill resists brill
The rock mass that hole machine drill head pierces prevents from causing showing for rock-core disking due to difference unloading rebound in drilling process in boring procedure
As；
Step3: being resisted the steel pole of drilling machine end by the first spring being connected with sphere, and sphere and serrated slot convex portion are mutual
It acts on, with the increase puted forth effort in boring procedure, the second spring of serrated slot two sides can be compressed, and distance increases between convex portion
Greatly, when power is greater than a threshold values, the distance of convex portion is suitably larger than the diameter of sphere, and sphere can slide into serrated slot
Between next convex portion, successively down, until drilling machine entirely digs into rock sample；
Step4: drilling stops drilling after terminating, and connects the steel pole band cutting blade of blade to rock mass by circular bit side wall
It is cut；
Step5: taking out drilling machine from rock mass, is placed in plane, and extraction is placed in the hole of drilling machine intermediate solid part
The threaded rod of two intensity maximums, by the disassembly to each part of drilling machine, to take out the rock mass of required stress fidelity.
The method have the advantages that:
1, the certain thickness drill bit of the present invention is assembled by multiple portions, can carry out effectively spelling assembly and disassembly, and can
To select multiple points of drill bits to be spliced according to sampling demand.
2, for the threaded rod of two intensity maximums of the invention through in the hole of drill side wall, threaded rod passes through brill
The screw thread rotation of head side wall enters, and can fix all drill bits, and interior bore in boring procedure is allow to keep same with outer brill
Step rotation.Facilitate the later period to dismantle drilling machine, takes out the part of rock mass needed for us.
3, the blade strength inside drilling machine of the present invention for Cutting Rock is very big, knife will not occur because of Cutting Rock
The situation of piece breakage.
4, blade of the present invention is fixed on the steel pole of drill side wall, can pass through rotation steel pole band cutting blade
Rock is cut.
5, the disassembling part of drilling machine is mounted on inside drilling machine of the present invention for the high-intensitive blade of Cutting Rock
The position divided, head and the tail both ends relief surface are equipped with one group of two blade vis-a-vis, and intermediate relief surface is equipped with two groups of two phases
Opposite blade.And the blade distance of head end and middle section is fixed, and will not occur to slide relatively, the blade at drill bit both ends can
To give the rock mass lateral confinement of drill bit internal, prevent rock mass from rock-core disking occurs.
6, the both ends of drilling machine of the present invention and intermediate removable position are equipped with groove, for placing blade.High-intensitive blade
Shape be rectangle, length is equal to the half of drilling machine internal diameter, and width is less than the ring width of drilling machine, it is ensured that two blades carry out
Intermediate rock mass can be cut completely when cutting.
7, by the midpoint of one end when the high-intensitive blade inside drilling machine of the present invention for Cutting Rock is installed
It is fixed, it is simple to operate by rotating steel pole Cutting Rock.
8, the tip portion of the one of the present invention steel pole through drill is thicker than middle section, top end part
Point diameter is slightly less than diameter of a circle in drilling machine, for resisting the rock pierced in drilling machine, it is ensured that steel pole can resist rock mass and
It will not make rock mass pressure excessive the phenomenon that causing rock crushing because of steel pole area is smaller.
9, sphere of the present invention and special serrated slot rigidity are very big, will not be deformed in interaction.
10, the bullet of different size can be used when the spring that serrated slot two sides of the present invention are evenly arranged samples at different conditions
Spring guarantees the pressure adjustable that steel pole applies among drill bit.
11, the special serrated slot of the present invention can give one fixed pressure of steel pole by the compression of two lateral springs.
12, the distance of the special serrated slot convex portion of the present invention is less than the diameter of sphere, in interaction with putting forth effort
Increase, the spring of serrated slot two sides can be compressed, and distance increases between convex portion, when power is greater than a threshold values,
The distance of convex portion is suitably larger than the diameter of sphere, and sphere can slide between next convex portion of serrated slot, can give
Steel pole provides a fixed pressure value.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 apparatus of the present invention overall structure is as schemed.
Fig. 2 apparatus of the present invention overall structure cross-sectional view.
Fig. 3 drill detail structure chart of the present invention.
In figure: drill bit 1, threaded rod 2, high-intensitive blade 3, rotating bar 4, steel pole 5, the first spring 6, sphere 7, serrated slot 8,
Second spring 9, fixed baffle 10, sawtooth 11.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
Embodiment 1:
Such as Fig. 1-3, rock body drilled samples stress fidelity device under a kind of high-ground stress, it includes drill bit 1, the top of the drill bit 1
Portion is provided with the sawtooth 11 for Cutting Rock；The drill bit 1 is mounted on the head of drilling machine, runs through inside the drilling machine and sets
It is equipped with threaded rod 2, the drilling machine is internally provided with the high-intensitive blade 3 for Cutting Rock, the inside peace of the drilling machine
Equipped with the rotating bar 4 through high-intensitive blade 3；The inside of the drilling machine is simultaneously equipped with steel pole 5, institute through the position of drill bit 1
Another end for stating steel pole 5 is equipped with the first spring 6, and the other end of first spring 6 is connected with sphere 7, the sphere 7
The other end and the convex portion of serrated slot 8 are engaged, and the both ends of the serrated slot 8 have been evenly arranged second spring 9, institute respectively
The other end and fixed baffle 10 for stating second spring 9 are engaged.The present invention relates to rock body drilleds under a kind of high-ground stress to take
Sample stress fidelity device and method be exactly by special drilling machine under high-ground stress to rock body drilled, bored with one through drilling machine
The top thicker part of the steel pole of head point resists the rock mass in drilling machine, and drill bit bores simultaneously to squeezing into inside rock mass in boring procedure
Rock mass in front can give steel pole pressure, and power is transmitted to sphere by high strong spring after stress by steel pole, sphere be against two it is special
The great serrated slot of rigidity convex portion between give one outside power of serrated slot, the spring at serrated slot both ends is to serrated slot
The spring of inward force, serrated slot both ends can gradually reduce, and the distance between serrated slot convex portion can be gradually increased, and work as sphere
Certain threshold values is reached to the power with serrated slot, the distance between serrated slot can be greater than sphere diameter, and sphere can slide into next
In the convex portion of a serrated slot, successively down, serrated slot can successively give one fixed pressure of steel pole, finally by drilling machine
Internal high-intensitive blade cuts the rock mass inside drilling machine, is sampled.Can effectively solve in the prior art for
The mechanics problems such as the phenomenon that causing rock-core disking due to difference unloading rebound in drilling process in boring procedure under high-ground stress.
Further, the drill bit 1 is composed using splicing structure, and can be dismantled；The drill bit 1 has certain
Thickness.It can carry out effectively spelling assembly and disassembly.
Further, 1 side wall of drill bit is provided with threaded hole, and the threaded hole is threadedly coupled with the composition of threaded rod 2, and
Drill bit 1 is detachably secured on drill head.Two intensity maximums are placed through the threaded rod 2 inside drilling machine
In the hole of drill side wall, threaded rod is entered by the screw thread rotation in hole, can fix all drill bits,
All drill bits in boring procedure are allow to keep rotating synchronously.Facilitate the later period to dismantle drill 1 simultaneously, takes out our institutes
Need the part of rock mass.
Further, the shape inside the drilling machine for the high-intensitive blade 3 of Cutting Rock is rectangle, length etc.
In the half of drilling machine internal diameter, width is less than the ring width of drilling machine.High-intensitive blade 3 is consolidated the midpoint of one end when installing
It is fixed.
Further, the top end diameter of the steel pole 5 is greater than the diameter at intermediate position.
Further, the 8 both ends convex portion of serrated slot is equidistant, and initial convex portion internal diameter is less than the straight of sphere 7
Diameter.
Further, the second spring 9 uses a variety of varying strengths, and generates pressure to steel pole 5.The uniform cloth
The spring 9 set and the both ends of serrated slot 8 be connected, the spring 9 for choosing varying strength can be passed through under different large ground pressures
So as to select the pressure that steel pole 5 applies in drill bit.
Embodiment 2:
The application method of rock body drilled sampling stress fidelity device under a kind of high-ground stress described in any one, it is characterised in that it
The following steps are included:
Step1: choosing one piece of more smooth free face on massif, and the area of selection is greater than the face that will take out rock mass
Product, being cut away on the surface layer for choosing area by the rock of weathering with cutting machine reveals internal rock；
Step2: starting to drill with drilling machine to rock mass deep, and while drilling, the steel pole 5 through drill resists brill
The rock mass that hole machine drill head pierces prevents from causing showing for rock-core disking due to difference unloading rebound in drilling process in boring procedure
As；
Step3: the steel pole 5 of drilling machine end, 8 lug boss of sphere 7 and serrated slot are resisted by the first spring 6 being connected with sphere 7
Split-phase interaction, with the increase puted forth effort in boring procedure, the second spring 9 of 8 two sides of serrated slot can be compressed, between convex portion
Distance increases, and when power is greater than a threshold values, the distance of convex portion is suitably larger than the diameter of sphere 7, and sphere can slide into
Between next convex portion of serrated slot 8, successively down, until drilling machine entirely digs into rock sample；
Step4: drilling stops drilling after terminating, by the steel pole 5 of circular bit side wall connection blade with cutting blade 3 to rock
Body is cut；
Step5: taking out drilling machine from rock mass, is placed in plane, and extraction is placed in the hole of drilling machine intermediate solid part
The threaded rod 2 of two intensity maximums, by the disassembly to each part of drilling machine, to take out the rock of required stress fidelity
Body.
Claims (8)
1. rock body drilled samples stress fidelity device under a kind of high-ground stress, it is characterised in that: it includes drill bit (1), the brill
The sawtooth (11) for Cutting Rock is provided at the top of head (1)；The drill bit (1) is mounted on the head of drilling machine, the brill
It being provided through inside the machine of hole threaded rod (2), the drilling machine is internally provided with the high-intensitive blade (3) for Cutting Rock,
The inside of the drilling machine is equipped with the rotating bar (4) through high-intensitive blade (3)；Drill bit is simultaneously run through in the inside of the drilling machine
(1) position is equipped with steel pole (5), and another end of the steel pole (5) is equipped with the first spring (6), first spring (6)
The other end be connected with sphere (7), the other end of the sphere (7) and the convex portion of serrated slot (8) are engaged, the saw
The both ends of tooth socket (8) have been evenly arranged second spring (9) respectively, the other end of the second spring (9) and fixed baffle (10)
It is engaged.
2. rock body drilled samples stress fidelity device under a kind of high-ground stress according to claim 1, it is characterised in that: institute
It states drill bit (1) to be composed using splicing structure, and can dismantle；The drill bit (1) has certain thickness.
3. rock body drilled samples stress fidelity device under a kind of high-ground stress according to claim 1, it is characterised in that: institute
It states drill bit (1) side wall and is provided with threaded hole, the threaded hole is constituted with threaded rod (2) and is threadedly coupled, and drill bit (1) is detachable
It is fixed on drill head.
4. rock body drilled samples stress fidelity device under a kind of high-ground stress according to claim 1, it is characterised in that: institute
Stating the shape inside drilling machine for the high-intensitive blade (3) of Cutting Rock is rectangle, and length is equal to the one of drilling machine internal diameter
Half, width is less than the ring width of drilling machine.
5. rock body drilled samples stress fidelity device under a kind of high-ground stress according to claim 1, it is characterised in that: institute
The top end diameter for stating steel pole (5) is greater than the diameter at intermediate position.
6. rock body drilled samples stress fidelity device under a kind of high-ground stress according to claim 1, it is characterised in that: institute
State that serrated slot (8) both ends convex portion is equidistant, and initial convex portion internal diameter is less than the diameter of sphere (7).
7. rock body drilled samples stress fidelity device under a kind of high-ground stress according to claim 1, it is characterised in that: institute
It states second spring (9) and uses a variety of varying strengths, and pressure is generated to steel pole (5).
8. the user of rock body drilled sampling stress fidelity device under a kind of high-ground stress described in claim 1-7 any one
Method, it is characterised in that it the following steps are included:
Step1: choosing one piece of more smooth free face on massif, and the area of selection is greater than the face that will take out rock mass
Product, being cut away on the surface layer for choosing area by the rock of weathering with cutting machine reveals internal rock；
Step2: starting to drill with drilling machine to rock mass deep, and while drilling, the steel pole (5) through drill is resisted
The rock mass that drill pierces prevents from causing showing for rock-core disking due to difference unloading rebound in drilling process in boring procedure
As；
Step3: the steel pole (5) of drilling machine end, sphere (7) and serrated slot are resisted by the first spring (6) being connected with sphere (7)
(8) convex portion interacts, and with the increase puted forth effort in boring procedure, the second spring (9) of serrated slot (8) two sides can be pressed
It contracts, distance increases between convex portion, and when power is greater than a threshold values, the distance of convex portion is suitably larger than sphere (7)
Diameter, sphere can slide between next convex portion of serrated slot (8), successively down, until drilling machine is entire by rock sample
Until digging into；
Step4: drilling stops drilling after terminating, and steel pole (5) band cutting blade (3) of blade is connected by circular bit side wall
Rock mass is cut；
Step5: taking out drilling machine from rock mass, is placed in plane, and extraction is placed in the hole of drilling machine intermediate solid part
The threaded rod (2) of two intensity maximums, by the disassembly to each part of drilling machine, to take out the rock of required stress fidelity
Body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910369133.9A CN110043210B (en) | 2019-05-05 | 2019-05-05 | Rock mass drilling sampling stress fidelity device and method under high ground stress |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910369133.9A CN110043210B (en) | 2019-05-05 | 2019-05-05 | Rock mass drilling sampling stress fidelity device and method under high ground stress |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110043210A true CN110043210A (en) | 2019-07-23 |
| CN110043210B CN110043210B (en) | 2021-05-04 |
Family
ID=67280799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910369133.9A Active CN110043210B (en) | 2019-05-05 | 2019-05-05 | Rock mass drilling sampling stress fidelity device and method under high ground stress |
Country Status (1)
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| CN (1) | CN110043210B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454105A (en) * | 2019-08-27 | 2019-11-15 | 中煤科工集团重庆研究院有限公司 | Coal mine underground coal bed gas bearing capacity with boring in-situ test system and method |
| CN112097983A (en) * | 2020-09-17 | 2020-12-18 | 中铝国际工程股份有限公司 | Device and method for monitoring stress and particle density of fractured rock mass in tunnel engineering |
| CN112324374A (en) * | 2021-01-04 | 2021-02-05 | 成都理工大学 | Stress-preserving coring device and method |
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| CN112324374A (en) * | 2021-01-04 | 2021-02-05 | 成都理工大学 | Stress-preserving coring device and method |
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| Publication number | Publication date |
|---|---|
| CN110043210B (en) | 2021-05-04 |
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