CN110630200A - Simple and easy super-large-diameter core taking and drilling sample extraction device and core taking method - Google Patents
Simple and easy super-large-diameter core taking and drilling sample extraction device and core taking method Download PDFInfo
- Publication number
- CN110630200A CN110630200A CN201910957694.0A CN201910957694A CN110630200A CN 110630200 A CN110630200 A CN 110630200A CN 201910957694 A CN201910957694 A CN 201910957694A CN 110630200 A CN110630200 A CN 110630200A
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- Prior art keywords
- core
- pipe
- rock core
- core pipe
- rock
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- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000005553 drilling Methods 0.000 title claims abstract description 13
- 238000000605 extraction Methods 0.000 title claims description 10
- 239000011435 rock Substances 0.000 claims abstract description 63
- 238000005070 sampling Methods 0.000 claims abstract description 14
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000009434 installation Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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 or core extractors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention relates to the technical field of drilling sampling device structures, in particular to a simple and easy super-large-diameter core taking and core drilling sample extracting device and a core taking method. Comprises a rock core pipe; the rock core pipe is both ends open-ended and the upper end is fixed at the cavity tubular structure that drilling rod upper and lower extreme was provided with the cutting tooth piece, its characterized in that: the rock core pipe is provided with a limiting structure; the limiting structure comprises an in-pipe part which is positioned in the core pipe and used for limiting the core to move from top to bottom but not limiting the core to move from bottom to top, and an out-pipe part which is positioned outside the core pipe and used for fixing the in-pipe part on the core pipe. The coring device has the advantages of simple structure, convenient operation, small improvement on the original equipment, low use cost, wide application range and great popularization value, and is suitable for extracting large-diameter rock cores.
Description
Technical Field
The invention relates to the technical field of drilling sampling device structures, in particular to a simple and easy super-large-diameter core taking and coring device and a core taking method.
Background
At present, two modes are commonly used for treating unstable dangerous rock masses, one mode is blasting clearing, construction interference is high in the limited environment, safety risks are high, the other mode is reinforcement treatment, and the stability of the dangerous rock masses is enhanced by arranging anchor cables or steel rail piles to prevent the dangerous rock masses from collapsing. The latter is safe and reliable in a limited environment and is more and more widely applied. But when adopting anchor rope or rail pile reinforcement mode to deal with unstable dangerous rock mass, need to get core and bore the drill hole and get the core, provide anchor rope or rail pile installation and anchor basis, and rail pile consolidates required anchor hole aperture generally great, the combination formula rail pile reaches 300mm even, but the biggest drill hole of common coring drill is got the core diameter and is 136mm, it is too big to exceed this numerical value core appearance dead weight, draw the difficulty, common coring drill structure is comparatively complicated, it is also very troublesome to use the operation, the cost of use is comparatively high, so the conventional coring is bored the drill hole and is got the core mode and is difficult to satisfy rail pile construction requirements.
Disclosure of Invention
The invention aims to solve the defects of the background technology and provide a simple and easy device and method for extracting a core sample of a super-large-diameter core drill.
The technical scheme of the invention is as follows: a simple and easy core sample extraction element of core drill of getting of the oversize diameter, including the core barrel; the rock core pipe is both ends open-ended and the upper end is fixed at the cavity tubular structure that drilling rod upper and lower extreme was provided with the cutting tooth piece, its characterized in that: the rock core pipe is provided with a limiting structure; the limiting structure comprises an in-pipe part which is positioned in the core pipe and used for limiting the core to move from top to bottom but not limiting the core to move from bottom to top, and an out-pipe part which is positioned outside the core pipe and used for fixing the in-pipe part on the core pipe.
And furthermore, a plurality of groups of limiting structures are arranged on the side wall of the rock core pipe and are arranged at intervals along the circumferential direction of the rock core pipe.
The further in-pipe portion comprises a vertical section disposed through the core pipe; the vertical section is a rod-shaped structure with the lower end fixed on the side wall of the core barrel through the outer part of the pipe and the upper end inclined to the axis of the core barrel and with elasticity,
each group of limiting structures further comprises a plurality of vertical sections positioned in the core tube; the outer pipe part comprises an arc line segment attached to the outer side of the core barrel; the arc line segment is provided with a plurality of short rods which penetrate through the core barrel; the lower end of the vertical section is fixedly connected with the arc line section through a short rod.
A coring method of an extraction device is characterized in that: fixing the upper end of a rock core pipe on a drill rod, installing a tooth block at the lower end of the rock core pipe, extending the inner part of the rock core pipe into the rock core pipe, fixing the rock core pipe on the rock core pipe through the outer part of the rock core pipe, drilling the designed coring position, reversely rotating the rock core pipe to completely fix the rock core after the rock core enters the rock core pipe, and taking out the rock core pipe to cut off the connection between the outer part of the rock core pipe and the inner part of the rock core pipe, so that the rock core automatically falls off to finish.
The further method for taking out the core by the core barrel comprises the following steps: after the core tube is lifted out, the connection between the outer part of the tube and the inner part of the tube is cut off, and the core automatically falls off to finish sampling
The invention has the advantages that: 1. according to the invention, the limiting structure is arranged on the core barrel, so that the core is limited to be separated from the core barrel from top to bottom in the drilling process, the core can be lifted out along with the core barrel, sampling and sampling are convenient, the core is divided into an inner part and an outer part, the installation and the disassembly are convenient, the original structure is not greatly changed, and the popularization and the use in a large range are facilitated;
2. the side wall of the core tube is provided with the plurality of groups of limiting structures, and the plurality of groups of limiting structures cooperate with each other to ensure that the core in the core tube cannot fall out, so that the core with large diameter and heavy weight can be drilled;
3. the inner part of the vertical section is divided into the vertical sections which are inclined vertically, the vertical sections are filled between the rock core and the rock core pipe in the sampling process, and the upper ends of the vertical sections are clamped outside the rock core to limit the rock core to fall off in the lifting process, so that the vertical section is simple in structure, convenient to operate and extremely low in use cost, the vertical sections can bear the weight of the rock core with a large diameter, and the material taking range is extremely wide;
4. each group of limiting structures comprises a plurality of vertical sections, the plurality of vertical sections can effectively improve the sample bearing weight, a large-diameter rock core can be taken out, and the problem that the rock core falls off is solved;
5. the coring method is simple and convenient to operate, and the rock core with large diameter can be taken out by partially preventing the rock core from falling in the tube, so that the material is convenient to obtain;
6. the coring method can conveniently drop the rock core by cutting off the connection between the inner part of the pipe and the outer part of the pipe.
The coring device has the advantages of simple structure, convenient operation, small improvement on the original equipment, low use cost, wide application range and great popularization value, and is suitable for extracting large-diameter rock cores.
Drawings
FIG. 1: a front view of the sampling device of the present invention;
FIG. 2: a side view of the sampling device of the present invention;
FIG. 3: the sampling device of the invention has a perspective structure schematic diagram;
FIG. 4: a top view of the sampling device of the present invention;
FIG. 5: the vertical section, the arc line section and the short rod of the sampling device are connected with each other in a schematic structure;
wherein: 1-a core barrel; 2, drilling a drill rod; 3, a tooth block; 4-vertical section; 5, an arc segment; 6-short bar; 7-core.
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments.
Like figure 1 ~ 5, a simple and easy super large diameter core drill core appearance extraction element, including core pipe 1, the core pipe 1 of this embodiment is upper and lower both ends open-ended cavity tubular structure, and connector threaded connection is passed through to the upper end in 2 lower extremes of drilling rod, and cutting tooth piece 3 is installed to the lower extreme, realizes taking a sample through tooth piece 3 cutting core.
The rock core pipe 1 lateral wall of this embodiment is provided with multiunit limit structure, and multiunit limit structure is along 1 circumference interval arrangement of rock core pipe, and this embodiment is two sets of, two sets of limit structure symmetrical arrangement. As shown in fig. 1 to 4, a through hole is formed in a side wall of the core barrel 1, the limiting structure includes an inner pipe portion penetrating through the through hole and extending into the core barrel 1, the inner pipe portion is used for limiting the movement of the core from top to bottom but not limiting the movement of the core from bottom to top, and the inner pipe portion is fixed on the core barrel 1 through an outer pipe portion located outside the core barrel 1.
As shown in fig. 3 and 5, the inner portion of the tube includes vertical sections 4 penetrating through the core barrel 1, each group of limiting structures includes a plurality of vertical sections 4 located in the core barrel 1, and each group of limiting structures of the present embodiment includes two vertical sections 4. The vertical section 4 is a rod-shaped structure with the lower end fixed on the side wall of the rock core pipe 1 through the outer part of the pipe and the upper end inclined to the axis of the rock core pipe 1 and with elasticity,
as shown in fig. 2 to 5, the outer part of the pipe comprises an arc segment 5 attached to the outer side of the core barrel 1, the arc segment 5 is provided with a plurality of short rods 6 penetrating through the through holes, and the lower end of the vertical segment 4 is fixedly connected with the arc segment 5 through the short rods 6.
During actual sampling, fix core pipe 1 upper end on drilling rod 2 earlier, at core pipe 1 lower extreme installation tooth piece 3, stretch into core pipe 1 with vertical section 4 in, and fix on core pipe 1 through arc 5, drill the core position to the design, treat that core 7 enters into core pipe 1 back, vertical section 4 can fully strand with the core, treat that the probing is accomplished the back, reverse rotation core pipe 1 fixes core 7 completely, propose core pipe 1, cut off vertical section 4 and arc 5's being connected, core 7 drops automatically and accomplishes the sample.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A simple and easy super large diameter core drill core sample extraction element, including the core barrel (1); rock core pipe (1) is both ends open-ended and the upper end is fixed at the cavity tubular structure that drilling rod (2) upper and lower extreme was provided with cutting tooth piece (3), its characterized in that: the rock core pipe (1) is provided with a limiting structure; the limiting structure comprises an inner pipe part which is positioned in the core barrel (2) and used for limiting the movement of the core from top to bottom but not limiting the movement of the core from bottom to top, and an outer pipe part which is positioned outside the core barrel (1) and used for fixing the inner pipe part on the core barrel (1).
2. A simple extra-large diameter core-taking core sample extraction device as recited in claim 1, wherein: the rock core pipe (1) is provided with a plurality of groups of limiting structures on the side wall, and the plurality of groups of limiting structures are arranged along the circumferential direction of the rock core pipe (1) at intervals.
3. A simple extra-large diameter coring bit sample extraction device as recited in claim 2, wherein: the in-pipe part comprises a vertical section (4) penetrating through the rock core pipe (1); the vertical section (4) is of a rod-shaped structure with the lower end fixed on the side wall of the rock core pipe (1) through the outer part of the pipe and the upper end inclined towards the axis of the rock core pipe (1) and with elasticity.
4. A simple extra-large diameter coring bit sample extraction device as recited in claim 3, wherein: each group of limiting structures comprises a plurality of vertical sections (4) positioned in the rock core pipe (1); the pipe outer part comprises an arc line section (5) attached to the outer side of the core pipe (1); a plurality of short rods (6) penetrating through the core barrel (1) are arranged on the arc segment (5); the lower end of the vertical section (4) is fixedly connected with the arc line section (5) through a short rod (6).
5. A method of coring an extraction device as set forth in claim 1, wherein: the upper end of a rock core pipe (1) is fixed on a drill rod (2), a tooth block (3) is installed at the lower end of the rock core pipe (1), the interior of the rock core pipe extends into the rock core pipe (1) and is fixed on the rock core pipe (1) through the outer part of the rock core pipe, the designed coring position is drilled, after the rock core (7) enters the rock core pipe (1), the rock core (7) is completely fixed by reversely rotating the rock core pipe (1), the rock core pipe (1) is proposed to be taken out, and sampling is completed.
6. A coring method as set forth in claim 5, wherein: the method for taking out the rock core (7) from the rock core tube (1) comprises the following steps: after the core barrel (1) is lifted, the connection between the outer part of the pipe and the inner part of the pipe is cut off, and the core (7) automatically falls off to finish sampling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910957694.0A CN110630200B (en) | 2019-10-10 | 2019-10-10 | Simple and easy ultra-large diameter core drilling core sample extraction device and core taking method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910957694.0A CN110630200B (en) | 2019-10-10 | 2019-10-10 | Simple and easy ultra-large diameter core drilling core sample extraction device and core taking method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110630200A true CN110630200A (en) | 2019-12-31 |
| CN110630200B CN110630200B (en) | 2024-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910957694.0A Active CN110630200B (en) | 2019-10-10 | 2019-10-10 | Simple and easy ultra-large diameter core drilling core sample extraction device and core taking method |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113358404A (en) * | 2021-06-09 | 2021-09-07 | 东华理工大学 | Exploration nail position coring device suitable for sandstone type uranium deposit |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020033279A1 (en) * | 2000-08-25 | 2002-03-21 | Myrick Thomas M. | Core break-off mechanism |
| US20110100718A1 (en) * | 2009-11-03 | 2011-05-05 | Longyear Tm, Inc. | Core lifter |
| CN106677701A (en) * | 2017-01-23 | 2017-05-17 | 珠海市英格尔特种钻探设备有限公司 | Engineering geological drilling construction method based on thin-walled drilling tool |
| CN108661581A (en) * | 2018-04-28 | 2018-10-16 | 哈尔滨工业大学 | A kind of closing component of the coring soft bag with comb-tooth-type limiter |
| CN109681140A (en) * | 2018-12-26 | 2019-04-26 | 深圳大学 | Rock sample fidelity coring device |
| CN109779553A (en) * | 2019-03-07 | 2019-05-21 | 中国地质科学院勘探技术研究所 | A kind of totally-enclosed boring sample device |
| CN211008528U (en) * | 2019-10-10 | 2020-07-14 | 中交第二航务工程局有限公司 | Simple and easy super large diameter core drill core appearance extraction element |
-
2019
- 2019-10-10 CN CN201910957694.0A patent/CN110630200B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020033279A1 (en) * | 2000-08-25 | 2002-03-21 | Myrick Thomas M. | Core break-off mechanism |
| US20110100718A1 (en) * | 2009-11-03 | 2011-05-05 | Longyear Tm, Inc. | Core lifter |
| CN106677701A (en) * | 2017-01-23 | 2017-05-17 | 珠海市英格尔特种钻探设备有限公司 | Engineering geological drilling construction method based on thin-walled drilling tool |
| CN108661581A (en) * | 2018-04-28 | 2018-10-16 | 哈尔滨工业大学 | A kind of closing component of the coring soft bag with comb-tooth-type limiter |
| CN109681140A (en) * | 2018-12-26 | 2019-04-26 | 深圳大学 | Rock sample fidelity coring device |
| CN109779553A (en) * | 2019-03-07 | 2019-05-21 | 中国地质科学院勘探技术研究所 | A kind of totally-enclosed boring sample device |
| CN211008528U (en) * | 2019-10-10 | 2020-07-14 | 中交第二航务工程局有限公司 | Simple and easy super large diameter core drill core appearance extraction element |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113358404A (en) * | 2021-06-09 | 2021-09-07 | 东华理工大学 | Exploration nail position coring device suitable for sandstone type uranium deposit |
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| Publication number | Publication date |
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| CN110630200B (en) | 2024-06-25 |
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