CN111335836B - Geological drilling coring device for improving sampling integrity and sampling method thereof - Google Patents
Geological drilling coring device for improving sampling integrity and sampling method thereof Download PDFInfo
- Publication number
- CN111335836B CN111335836B CN202010143894.5A CN202010143894A CN111335836B CN 111335836 B CN111335836 B CN 111335836B CN 202010143894 A CN202010143894 A CN 202010143894A CN 111335836 B CN111335836 B CN 111335836B
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- drill bit
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- hole
- core
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- 238000005553 drilling Methods 0.000 title claims abstract description 36
- 238000005070 sampling Methods 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000007599 discharging Methods 0.000 claims description 14
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims 1
- 239000002689 soil Substances 0.000 abstract description 27
- 238000005527 soil sampling Methods 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
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
-
- 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
- E21B10/00—Drill bits
- E21B10/02—Core bits
-
- 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
- E21B25/10—Formed core retaining or severing means
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (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)
- Mechanical Engineering (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to a geological drilling coring device for improving sampling integrity and a sampling method thereof. The soil sampling device has the advantages that after the drill bit works, the soil sample is collected into the coring box, and after the soil is collected, workers can obtain the complete soil sample by taking out the coring box, so that the sampling integrity is good.
Description
Technical Field
The invention belongs to the technical field of geological environment monitoring, and particularly relates to a geological drilling coring device for improving sampling integrity and a sampling method thereof.
Background
The geological drilling coring device comprises a core barrel, wherein the core barrel is a section of pipe connected to the upper part of a drill bit in core drilling and used for containing and protecting a core. It also acts as a pilot drill while drilling. The common core tube is only a seamless steel tube with screw threads at two ends.
The in-process of current core pipe at the sample, because get the core difficulty, need make the appearance core drop behind the artifical hammering pipe wall, the influence that falls is received very easily to the appearance core sample of sample, causes the sample result inaccurate, and unable accurate measurement pollutes the degree of depth and the concrete distribution condition on soil horizon, consequently, we need the soil after collecting be difficult for mutual interference, the better sampling device of sample integrality.
Disclosure of Invention
In view of the shortcomings of the prior art, it is an object of the present invention to provide a coring apparatus for geological drilling that improves the integrity of the sample.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides an improve geological drilling corer of sample integrality, includes the body and the drill bit of being connected with the body, at least one core box of getting is placed in the body, it contradicts with the drill bit to get the core box, it has the through-hole to open towards the one end of drill bit to get the core box.
Through adopting above-mentioned technical scheme, make drill bit work back, collect the soil sample to getting the core box in, soil collection finishes the back, and the staff can obtain complete soil sample through getting the core box out, and sample integrality is better.
The present invention in a preferred example may be further configured to: the core taking box is formed by splicing two arc plates with semicircular sections, and one sides of the arc plates are connected through a plurality of hinges.
Through adopting above-mentioned technical scheme, make to get the core box at the in-process that takes out the soil sample, take out through the mode of the arc that opens and shuts, the sample is convenient, and is difficult for causing the destruction to the soil sample.
The present invention in a preferred example may be further configured to: the core taking box is characterized in that an annular baffle is welded at one end, back to the drill bit, of the core taking box, the annular baffle is only welded at one end of one arc-shaped plate, and a plurality of exhaust holes are formed in the annular baffle.
Through adopting above-mentioned technical scheme, the setting in exhaust hole is convenient for balance to get the atmospheric pressure in the core box, and the soil sample of being convenient for gets into to get into in the core box, and the sample is convenient.
The present invention in a preferred example may be further configured to: the position that the hinge is connected to the arc is opened there is connecting groove, the both ends of hinge are located connecting groove, the hinge is the arc surface towards one side of getting the core box central line.
Through adopting above-mentioned technical scheme, make the inner wall of getting the core box comparatively smooth, get the difficult arch of installation department of hinge in the core box and influence the collection of soil sample, soil sample integrality is better.
The present invention in a preferred example may be further configured to: the through hole is a conical opening, the larger end of the conical opening faces the direction of the drill bit, a conical boss is arranged at the end, facing the pipe body, of the drill bit, and the conical opening is clamped and embedded on the conical boss.
Through adopting above-mentioned technical scheme, make drill bit and get and be connected closely between the core box, the soil sample is difficult for revealing or disorderly, and the soil sample is easily leading-in getting the core box.
The present invention in a preferred example may be further configured to: the core taking box is characterized in that one end, back to the conical opening, of the core taking box is provided with an annular clamping groove, the annular clamping groove is located on the outer wall of the core taking box, and a circular hoop is placed in the annular clamping groove.
Through adopting above-mentioned technical scheme, make circular hoop carry on spacingly to getting the core box, prevent to get to open after the core box atress, reduce working error.
The present invention in a preferred example may be further configured to: the drill bit comprises a sampling through hole, and the minimum inner diameter of the conical opening is the same as the inner diameter of the sampling through hole.
Through adopting above-mentioned technical scheme, make soil sample follow the leading-in back of getting in the core box of sampling through-hole, the soil sample is difficult for diffusing or tightening up, and soil sample's integrality is better, and measured data is comparatively accurate.
The present invention in a preferred example may be further configured to: the pipe body one end of drill bit dorsad is opened has two corresponding rectangular channels, a ejection of compact is placed to the one end of getting the core box dorsad in the pipe body, it is equipped with a plurality of screw holes to bore on the outer wall of ejection of compact beater, threaded hole wears to be equipped with a threaded rod that runs through the rectangular channel.
Through adopting above-mentioned technical scheme, when making the staff need take out the core box, can be fixed in the threaded hole through passing the rectangular channel with the threaded rod, beat the board or the threaded rod will get out the core box through knocking the ejection of compact and shift out, the sample is convenient.
The second objective of the invention is realized by the following technical scheme:
the sampling method of the geological drilling coring device for improving the sampling integrity comprises the procedures of filling a coring box, connecting a driving device, marking and drilling, recovering the device, sampling and the like, wherein in the marking and drilling process, a worker firstly drills 1/5 circular grooves with the depth of a barrel body and the diameter 2-3 times of the diameter of a drilled hole by taking the circle center of the position of the marked drilled hole as the center at the marking position, then concrete is poured into the circular grooves, the leveling procedure is carried out on the surface of the poured concrete, and guide holes matched with a drill bit and the pipe body are reserved at the circle center of the grooves in the pouring process.
By adopting the technical scheme, because the soil with softer soil is often encountered in the geological drilling process, the drill bit applies corresponding acting force to the surrounding soil in the drilling process, the drilled drill hole is easy to slightly deform, and the drilling angle of the drill bit is influenced, so that a worker can drill downwards through the guide of the guide hole in the drilling process, and the guide hole is not easy to deform to influence the drilling angle due to the fact that concrete is poured around the guide hole; simultaneously, the process of making level on concrete surface makes the staff in the in-process of carrying out the drilling process, can fix a position through concrete surface, and when carrying out the investigation in this drilling the second time, can fix a position through concrete surface, and drilling department is difficult for producing great deformation, and the in-process of investigating the drilling once more is difficult for making the drill bit take place the skew because of the influence of original drilling hole site.
In conclusion, the invention has the following beneficial effects:
1. after the drill bit works, the soil sample is collected into the core taking box, after the soil is collected, the worker can obtain the complete soil sample by taking out the core taking box, and the sampling integrity is better.
2. When making the staff need take out the core box, can be fixed in the screw hole through passing the threaded rod rectangular channel, beat the board or the threaded rod will get the core box and shift out, the sample is convenient through strikeing the ejection of compact.
3. The in-process that makes the staff driling can be through the direction of guiding hole drilling downwards, because the guiding hole is concrete placement all around, the guiding hole is difficult for producing deformation and influences drilling angle.
Drawings
FIG. 1 is a schematic view of the overall structure of the present embodiment;
FIG. 2 is a schematic view of the overall structure of the core box in this embodiment;
FIG. 3 is a schematic view of the overall structure of the drill bit of this embodiment;
fig. 4 is a schematic view of the overall structure of the discharging striking plate in this embodiment.
Reference numerals: 1. a pipe body; 2. a drill bit; 3. taking a core box; 31. an arc-shaped plate; 311. a hinge; 4. an annular baffle; 41. an exhaust hole; 32. a conical boss; 33. an annular neck; 34. a circular hoop; 21. a sampling through hole; 11. a rectangular groove; 5. discharging and beating the plate; 51. a threaded hole; 52. a threaded rod.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the geological drilling coring device for improving sampling integrity disclosed by the invention comprises a tube body 1 with an outer diameter of 108mm, an inner diameter of 98-99mm and a wall thickness of 4.05mm, wherein one end of the tube body 1 is in threaded connection with a drill bit 2, the outer diameter of the drill bit 2 is 108mm, the inner diameter of the drill bit 2 is 96mm, and the wall thickness of the drill bit 2 is 7 mm; one end of the pipe body 1, which faces away from the drill bit 2, is provided with two corresponding rectangular grooves 11, wherein the width of the rectangular groove 11 is 16-20mm, and the length of the rectangular groove 11 is 150-200 mm.
As can be seen from fig. 1 and 2, a stainless steel coring box 3 is placed in a tube body 1, the coring box 3 is formed by splicing two arc plates 31 with semicircular sections, one sides of the arc plates 31 are connected by two hinges 311, a connecting groove is formed at a position where the arc plates 31 are connected with the hinges 311, two ends of the hinges 311 are located in the connecting groove, one side of each hinge 311, which faces a center line of the coring box 3, is an arc surface, the inner wall of the coring box 3 is a smooth curved surface, and the connecting groove is not shown in the figure; the length of the core taking box 3 is 200mm, the diameter of the outer wall of the core taking box is smaller than the inner diameter of the tube body 1, a through hole with the diameter of 96mm is formed in the core taking box 3, and the through hole is not shown in the figure.
As can be seen from fig. 1 and 2, an annular baffle 4 is welded to an end of the coring box 3 opposite to the drill bit 2, the annular baffle 4 is only welded to one end of one of the arc plates 31, and the arc plate 31 is provided with a plurality of exhaust holes 41.
As can be known by combining the figures 1 to 3, the central line of the drill bit 2 is provided with the sampling through hole 21, the drill bit 2 is provided with the conical boss 32 towards one end of the tube body 1, the smaller end of the diameter of the conical boss 32 faces the tube body 1, the through hole of the coring box 3 is provided with the conical opening matched with the conical boss 32 towards one end of the conical boss 32, the larger end of the conical opening faces the direction of the drill bit 2, the conical opening is embedded on the conical boss 32 in a clamping manner, the inner diameter of the smaller end of the conical opening is 96mm, and the inner diameter of the sampling through hole 21 is 96 mm.
As shown in fig. 2, an annular groove 33 is arranged at one end of the coring box 3 facing away from the drill 2, the annular groove 33 is located on the outer wall of the coring box 3, and a circular hoop 34 is placed in the annular groove 33.
As can be known from fig. 1 and 4, a discharging striking plate 5 is placed at one end of the pipe body 1, which faces away from the core taking box 3, the discharging striking plate 5 is attached to the inner wall of the pipe body 1, the thickness of the discharging striking plate 5 is 16-20mm, a plurality of threaded holes 51 are drilled in the outer wall of the discharging striking plate 5, a threaded rod 52 penetrating through the rectangular groove 11 is arranged in the threaded holes 51 in a penetrating manner, and the threaded rod 52 penetrates through the rectangular groove 11 to fix the discharging striking plate 5 in the pipe body 1.
The invention also provides a sampling method of the geological drilling coring device for improving the sampling integrity, when the embodiment starts to work, a worker firstly carries out the process of filling the core taking box 3, places the discharging knockout plate 5 in the pipe body 1, then places the coring box 3 with the circular hoop 34 in the pipe body 1 and props against the discharging knockout plate 5, one end of the discharging knockout plate 5 facing the core taking box 3 can also be provided with a plurality of bulges so as to form a gap between the discharging knockout plate and the core taking box 3, then installs the drill bit 2 so as to ensure that the conical boss 32 is embedded with the conical opening of the through hole on the conical boss 32, and the coring box 3 is tightly connected with the drill bit 2; connecting a driving device, connecting one end of the pipe body 1, which is opposite to the drill bit 2, with the driving device, performing a marking and drilling process in the connecting process, wherein in the marking and drilling process, a worker firstly drills 1/5 circular grooves with the depth of the barrel body and the diameter being 2-3 times of the diameter of the drilled hole at the marking position by taking the circle center of the verified drilling position as the center, then performs concrete pouring in the circular grooves, and performs a leveling process on the surface of the poured concrete, wherein guide holes matched with the drill bit 2 and the pipe body 1 are reserved at the circle center of the grooves in the pouring process; the driving device makes level with the concrete surface, drive this embodiment work, drill bit 2 works and gets into the core box 3 with the soil sample through-hole 21 in, the back is accomplished in the sample, install the recovery process, withdraw this embodiment and will get core box 3 and take out, when the staff takes out and gets core box 3, at first screw out drill bit 2, through rapping ejection of compact beater 5 or connecting threaded rod 52 in ejection of compact beater 5's screw hole 51 department, rapping threaded rod 52 will get core box 3 and take out, carry out the sample, take off and get the circular hoop 34 of core box 3, open and get core box 3, the soil sample that will obtain according to the position of getting core box 3, keep the integrality of soil sample.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (5)
1. The utility model provides an improve geological drilling corer of sample integrality which characterized in that: comprises a pipe body (1) and a drill bit (2) connected with the pipe body (1), at least one core taking box (3) is placed in the pipe body (1), the core taking box (3) is abutted to the drill bit (2), a through hole is formed in one end, facing the drill bit (2), of the core taking box (3), two corresponding rectangular grooves (11) are formed in one end, facing away from the drill bit (2), of the pipe body (1), one discharging striking plate (5) is placed at one end, facing away from the core taking box (3), of the pipe body (1), a plurality of threaded holes (51) are drilled in the outer wall of the discharging striking plate (5), a threaded rod (52) penetrating through the rectangular grooves (11) is arranged in each threaded hole (51) in a penetrating mode, the thickness of the discharging plate (5) is 16-20mm, the core taking box (3) is formed by splicing two arc plates (31) with semicircular sections, one side of each arc plate (31) is formed by connecting a plurality of hinges (311), get the welding of the one end of core box (3) drill bit (2) dorsad have ring baffle (4), ring baffle (4) only weld in the one end of one of them arc (31), it has a plurality of exhaust holes (41) to open on ring baffle (4), the position that hinge (311) is connected in arc (31) is opened there is the connecting groove, the both ends of hinge (311) are located the connecting groove, one side that core box (3) central line was got in hinge (311) orientation is the arc surface.
2. The geological drilling corer for improving sampling integrity of claim 1, wherein: the through-hole is the toper opening, the great one end of toper opening is towards drill bit (2) direction, drill bit (2) are equipped with toper boss (32) towards the one end of body (1), the toper opening inlay card is on toper boss (32).
3. The geological drilling corer for improving sampling integrity of claim 2, wherein: one end, back to the conical opening, of the core taking box (3) is provided with an annular clamping groove (33), the annular clamping groove (33) is located on the outer wall of the core taking box (3), and a circular hoop (34) is placed in the annular clamping groove (33).
4. The geological drilling corer for improving sampling integrity of claim 3, wherein: the drill (2) comprises a sampling through hole (21), and the minimum inner diameter of the conical opening is the same as the inner diameter of the sampling through hole (21).
5. A sampling method using the geological drilling coring device for improving the sampling integrity of any one of claims 1-4 comprises the steps of filling a coring box (3), connecting a driving device, marking and drilling, recovering the device and sampling, wherein in the marking and drilling process, a worker firstly drills 1/5 round grooves with the depth of a barrel body and the diameter 2-3 times of the diameter of a drilled hole at the center of the marked drilled hole, then concrete is poured into the round grooves, the surface of the poured concrete is leveled, and guide holes matched with a drill bit (2) and a pipe body (1) are reserved at the center of the round grooves in the pouring process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010143894.5A CN111335836B (en) | 2020-03-04 | 2020-03-04 | Geological drilling coring device for improving sampling integrity and sampling method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010143894.5A CN111335836B (en) | 2020-03-04 | 2020-03-04 | Geological drilling coring device for improving sampling integrity and sampling method thereof |
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| Publication Number | Publication Date |
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| CN111335836A CN111335836A (en) | 2020-06-26 |
| CN111335836B true CN111335836B (en) | 2022-02-15 |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2033440U (en) * | 1988-05-07 | 1989-03-01 | 王建民 | Rotation and plug-in type soil picker |
| US9863199B1 (en) * | 2013-10-07 | 2018-01-09 | Kejr, Inc. | Soil sampler lay flat sheet liner system |
| CN204855188U (en) * | 2015-07-31 | 2015-12-09 | 柴峰 | Get core machine drill head with core appearance ejecting device |
| CN204877343U (en) * | 2015-09-01 | 2015-12-16 | 山东东泰工程咨询有限公司 | Get core machine drill head core appearance ejecting device |
| CN208749315U (en) * | 2018-08-14 | 2019-04-16 | 重庆倬方岩土工程勘察有限责任公司 | A kind of soil sample coring device convenient for adjusting |
| CN109930994B (en) * | 2019-04-15 | 2024-05-24 | 浙江华东建设工程有限公司 | Continuous coring reverse circulation drill bit, continuous coring device and continuous coring method |
| CN110763508A (en) * | 2019-11-06 | 2020-02-07 | 北京高能时代环境技术股份有限公司 | In-situ thermal desorption soil thermal sampling device and use method |
| CN211602502U (en) * | 2020-03-04 | 2020-09-29 | 生态环境部华南环境科学研究所 | Undisturbed soil sampler capable of improving sampling integrity |
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2020
- 2020-03-04 CN CN202010143894.5A patent/CN111335836B/en active Active
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