CN109083628A - The method that a kind of pair of inspection instrument for borehole photoelectric probe is pushed - Google Patents
The method that a kind of pair of inspection instrument for borehole photoelectric probe is pushed Download PDFInfo
- Publication number
- CN109083628A CN109083628A CN201810963701.3A CN201810963701A CN109083628A CN 109083628 A CN109083628 A CN 109083628A CN 201810963701 A CN201810963701 A CN 201810963701A CN 109083628 A CN109083628 A CN 109083628A
- Authority
- CN
- China
- Prior art keywords
- push rod
- groove type
- plough groove
- type push
- cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000523 sample Substances 0.000 title claims abstract description 24
- 238000007689 inspection Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000005553 drilling Methods 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000011010 flushing procedure Methods 0.000 claims abstract description 5
- 238000012360 testing method Methods 0.000 claims abstract description 4
- 239000003245 coal Substances 0.000 description 17
- 239000011435 rock Substances 0.000 description 7
- 238000001514 detection method Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000004804 winding Methods 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
- E21B47/00—Survey of boreholes or wells
- E21B47/002—Survey of boreholes or wells by visual inspection
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses the methods that a kind of pair of inspection instrument for borehole photoelectric probe is pushed, comprising the following steps: (1) with drilling machine from the upward drilling of top plate, bore diameter is then clean to bore flushing with water；(2) it is first connect with the cylindrical thread stick of first plough groove type push rod with endoscope photoelectric probe, the cylindrical thread stick of second plough groove type push rod is connect with the threaded hole of first plough groove type push rod then, is tightened；(3) while spreading plough groove type push rod, cable hand is pressed into the cable trench of plough groove type push rod；(4) at the end of test job, pull downward on plough groove type push rod, cable is pulled out to opening side simultaneously, after a piece plough groove type push rod pulls out, rotate the plough groove type push rod, the threaded hole of the cylindrical thread stick and a upper plough groove type push rod that make this root push rod is detached from, and so on, finally lay down all plough groove type push rod, endoscope photoelectric probe and cable.
Description
Technical field
The invention belongs to technical field of coal mine, and in particular to the side that a kind of pair of inspection instrument for borehole photoelectric probe is pushed
Method.
Background technique
When coal mine carries out the work such as roadway construction, roadway support, the strata structure of accurately detecting roof is needed, including
Rock stratum attribute, rock stratum performance level and cranny development situation, to provide foundation for drift support type and parameter.
Inspection instrument for borehole is widely used in geological conditions assessment when coal production, roadway support design, is mainly used for examining
Top plate coal bed texture, geologic structure, roadway roof absciss layer, drilling quality, tunnel grouting effect etc. are surveyed, especially in bolting with wire mesh
Roadway roof absciss layer observation, the detection of face roof rock structure, can it is intuitive by display, clearly indicate.It is logical
Recording digital code instrument is crossed, deposits and is analyzed in a computer for technical staff, make objective judgement and decision in time, can both avoid thing as far as possible
Therefore generation reduce unnecessary investment but also as the support form and parameter foundation for determining tunnel, video recording, image document
It can be reserved for and do permanent record.It is a kind of reliable method and mesh for detecting roof strata geological conditions using inspection instrument for borehole
A preceding basic element task for carrying out roadway support.
Current inspection instrument for borehole device is mature, and the producer of production, model are also relatively more, but basic structure generally comprises
Several parts such as photoelectric probe, push rod, fixed device, Flameproof box, display and (or) video recorder, cable.Current coal
Mine small-bore inspection instrument for borehole can accomplish 360 degree of panorama wide viewing angle colour camera shootings around drilling.
The common inspection instrument for borehole photoelectric probe diameter of coal mine is generally φ 22mm, bore diameter φ 28mm, and push rod is straight
Diameter 20mm, push bar material are generally metal stainless steel tube, length of steel pipe 1m, and there is screw thread in both ends inside, uses between two steel pipes
Threaded screw thread steel stick connection.Drilling depth 10-20m, cable linear diameter 5mm have the electricity of photoelectric probe inside cable
Source line and the data line that signal is conveyed to host, internal battery can work 6 hours.
Since the rock strength of coal mine roof plate is generally smaller, and contain pore water, the rock very poor to some roof conditions
, often there is the problems such as roof fall, supporting is difficult in layer, pry through the intuitive observation of progress with greater need for drilling to this kind of coal mine roof plate and grind
Study carefully, to provide technical support for roadway support and coal mine roof plate management.
Carrying out the basic program that drilling is pried through to top plate is to make the brill of 10-20m upwards from top plate with anchor cable rig first
Hole, bore diameter φ 28mm is then clean to bore flushing with water, is then turned on inspection instrument for borehole, is connected with push rod handle
The photoelectric probe of cable is sent into drilling, and video recording or photo are carried out in transmission process, records the rock stratum information at different depth, after
Phase processing analysis.Since roof strata intensity is small, loose crushing, it is easy dilatancy, during push, cable and push rod
Winding, cable and push rod is drilled blocks when serious, cannot continue to push, need to pull push rod and cable up and down,
It re-operates, equipment is drawn bad when serious, influences detection operations.
Summary of the invention
When being detected using inspection instrument for borehole, especially roof condition difference when, meeting problem is encountered that survey meter pop one's head in
To when drilling conveying, cable and push rod are wound, cable and push rod is drilled blocks, and equipment is drawn bad, shadow when serious
Ring detection operations.
The present invention is namely based on problem above, provides the method that a kind of pair of inspection instrument for borehole photoelectric probe is pushed,
It is pushed using plough groove type push rod, the plough groove type push rod includes a Hollow circular beam, and the upper end of Hollow circular beam is arranged
There is a cylindrical thread stick, the bottom inner portion of Hollow circular beam is machined with a threaded hole, the internal screw thread and cylinder of threaded hole
The external screw thread of threaded bar matches；Hollow circular beam has a cable trench along being parallel to axis direction drilling, and cable trench is from sky
Heart round bar upper surface extends to lower end surface, and there are openings on Hollow circular beam side wall for cable trench；The following steps are included:
(1) with drilling machine from the upward drilling of top plate, bore diameter is then clean to bore flushing with water；
(2) plough groove type push rod for drill pry through when, first the cylindrical thread stick with first plough groove type push rod with pry through
Instrument photoelectric probe connection, then the spiral shell of the cylindrical thread stick of second plough groove type push rod and first plough groove type push rod
Pit connection, is tightened；
(3) while spreading plough groove type push rod, cable hand is pressed into the cable trench of plough groove type push rod；
(4) at the end of test job, plough groove type push rod is pulled downward on, while cable is pulled out to opening side, a ditch
After slot type push rod pulls out, the plough groove type push rod is rotated, makes the cylindrical thread stick and a upper plough groove type of this root push rod
The threaded hole of push rod is detached from, and so on, finally lay down all plough groove type push rod, endoscope photoelectric probe and cable.
Preferably, drilling depth is 20.5m, bore diameter 28mm in step (1).
Preferably, the long 1020mm of the Hollow circular beam, overall diameter 20mm, interior diameter 2mm；Cylindrical thread stick overall diameter
8mm, long 20mm；Screw thread hole depth 20mm, diameter 8mm；Cable trench diameter 6mm；Be open width 3mm.The beneficial effect that the present invention generates
Fruit is to can reduce the gross sectional area of push rod and cable using plough groove type push rod of the invention, guarantees that cable is straight,
Cable and popping one's head in pushes smooth into drilling, and guarantee pries through that everything goes well with your work completes.Very good solution survey meter is popped one's head in drilling
When conveying, cable and push rod are wound, cable and push rod drilled the problem of blocking.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the plough groove type push rod for coal mine drilling endoscope of the invention；
Fig. 2 is I-I sectional view in Fig. 1 for the plough groove type push rod of coal mine drilling endoscope；
Fig. 3 is II-II sectional view in Fig. 1 for the plough groove type push rod of coal mine drilling endoscope；
Fig. 4 is III-III sectional view in Fig. 1 for the plough groove type push rod of coal mine drilling endoscope；
Fig. 5 is the plough groove type push rod, the photoelectric probe of endoscope and cable connection schematic diagram for coal mine drilling endoscope.
In figure, 1, the photoelectric probe of endoscope；2, for the plough groove type push rod of coal mine drilling endoscope；3, cable duct
Slot；4, cable；5, coal seam；6, rock stratum；7, it drills；8, cable trench is open；201, cylindrical thread stick；202, open circles
Bar；203, threaded hole；204, Hollow circular beam centre bore；2011, cylindrical thread stick centre bore.
Specific embodiment
Embodiment 1
As shown in Figs. 1-5, a kind of plough groove type push rod for coal mine drilling endoscope, including a Hollow circular beam 202, it is empty
The upper end of heart round bar 202 is provided with a cylindrical thread stick 201, and the bottom inner portion of Hollow circular beam 202 is machined with a screw thread
The external screw thread in hole 203, the internal screw thread and cylindrical thread stick 201 of threaded hole 203 matches, so as to the company between two push rod
It connects；Hollow circular beam 202 has a cable trench 3 along being parallel to axis direction drilling, and cable trench 3 is from 202 upper end of Hollow circular beam
Face extends to lower end surface, and there are openings 8 on Hollow circular beam side wall for cable trench 3.
The long 1020mm of Hollow circular beam, overall diameter 20mm, interior diameter 2mm；Cylindrical thread stick overall diameter 8mm, it is long
20mm；Screw thread hole depth 20mm, diameter 8mm；Cable trench diameter 6mm；Be open width 3mm.
The method that the plough groove type push rod pushes inspection instrument for borehole photoelectric probe, comprising the following steps:
(1) drilling 7 of 20.5m is played upwards from top plate with drilling machine, drill 7 diameter phi 28mm, then clean to bore flushing with water；
(2) plough groove type push rod for drill pry through when, first the cylindrical thread stick with first plough groove type push rod with pry through
(there is threaded hole in endoscope photoelectric probe side to the connection of instrument photoelectric probe 1, and the external screw thread and endoscope photoelectricity of cylindrical thread stick are visited
Threaded hole on head matches), then the cylindrical thread stick of second plough groove type push rod and first plough groove type are pushed
The threaded hole of bar connects, and tightens；
(3) while spreading plough groove type push rod, the hand of cable 4 is pressed into the cable trench 3 of plough groove type push rod；By
There is certain elasticity in cable, be easy to be pushed through in cable trench under the extruding of external force, keep smooth, while reducing again
Total section of cable and push rod, it is not easy to it is drilled to block, ensure that detection operations are smooth；
(4) it at the end of test job, pulls downward on plough groove type push rod, while cable is open 8 one laybacks to cable trench
Out, after a plough groove type push rod pulls out, the plough groove type push rod is rotated, the cylindrical thread stick and upper one of this root push rod is made
The threaded hole of root plough groove type push rod is detached from, and so on, finally lay down all plough groove type push rod 2, endoscope photoelectric probe 1
With cable 4.
Drilling is carried out when prying through, allows cable to be hidden in the cable trench of plough groove type push rod, to reduce push rod
With the cross-sectional area of cable, guarantee pries through that everything goes well with your work.
Claims (3)
1. the method that a kind of pair of inspection instrument for borehole photoelectric probe is pushed is pushed using plough groove type push rod, the ditch
Slot type push rod includes a Hollow circular beam, and the upper end of Hollow circular beam is provided with a cylindrical thread stick, the bottom of Hollow circular beam
End is internal to be machined with a threaded hole, and the external screw thread of the internal screw thread and cylindrical thread stick of threaded hole matches；Hollow circular beam edge
Being parallel to axis direction drilling has a cable trench, and cable trench extends to lower end surface, cable duct from Hollow circular beam upper surface
There are openings on Hollow circular beam side wall for slot；Characterized by the following steps:
(1) with drilling machine from the upward drilling of top plate, bore diameter is then clean to bore flushing with water；
(2) plough groove type push rod for drill pry through when, first the cylindrical thread stick with first plough groove type push rod with pry through
Instrument photoelectric probe connection, then the spiral shell of the cylindrical thread stick of second plough groove type push rod and first plough groove type push rod
Pit connection, is tightened；
(3) while spreading plough groove type push rod, cable hand is pressed into the cable trench of plough groove type push rod；
(4) at the end of test job, plough groove type push rod is pulled downward on, while cable is pulled out to opening side, a ditch
After slot type push rod pulls out, the plough groove type push rod is rotated, makes the cylindrical thread stick and a upper plough groove type of this root push rod
The threaded hole of push rod is detached from, and so on, finally lay down all plough groove type push rod, endoscope photoelectric probe and cable.
2. the method pushed as described in claim 1 to inspection instrument for borehole photoelectric probe, it is characterised in that: the open circles
Bar long 1020mm, overall diameter 20mm, interior diameter 2mm；Cylindrical thread stick overall diameter 8mm, long 20mm；Screw thread hole depth 20mm, directly
Diameter 8mm；Cable trench diameter 6mm；Be open width 3mm.
3. the method pushed as described in claim 1 to inspection instrument for borehole photoelectric probe, it is characterised in that: in step (1)
Drilling depth is 20.5m, bore diameter 28mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810963701.3A CN109083628A (en) | 2018-08-23 | 2018-08-23 | The method that a kind of pair of inspection instrument for borehole photoelectric probe is pushed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810963701.3A CN109083628A (en) | 2018-08-23 | 2018-08-23 | The method that a kind of pair of inspection instrument for borehole photoelectric probe is pushed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109083628A true CN109083628A (en) | 2018-12-25 |
Family
ID=64794454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810963701.3A Pending CN109083628A (en) | 2018-08-23 | 2018-08-23 | The method that a kind of pair of inspection instrument for borehole photoelectric probe is pushed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109083628A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110318807A (en) * | 2019-06-24 | 2019-10-11 | 太原理工大学 | Determine the endoscope orientation system and its application method of crack attitude in drilling |
| CN111155983A (en) * | 2020-01-19 | 2020-05-15 | 湖南科技大学 | Hollow inclusion strain gauge mounting device and method |
| CN111361021A (en) * | 2020-04-03 | 2020-07-03 | 中国矿业大学(北京) | Circumferential peeping device for surrounding rock drilling and using method |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203347783U (en) * | 2013-05-27 | 2013-12-18 | 山东科技大学 | Mine borehole imaging device hole inlet segment structure |
| DE102012223458A1 (en) * | 2012-12-17 | 2014-06-18 | Rohöl-Aufsuchungs Aktiengesellschaft | Video probe and method for borehole inspection |
| CN203729976U (en) * | 2014-01-09 | 2014-07-23 | 中国矿业大学 | All-dimensional peeping probe and positioning device for coal mine downhole drilling |
| CN104110258A (en) * | 2014-07-07 | 2014-10-22 | 西安科技大学 | Mine downhole drilling well logging analysis meter and method |
| CN104314555A (en) * | 2014-10-16 | 2015-01-28 | 河南理工大学 | Probing method of coal mine drilling probing instrument |
| CN204163711U (en) * | 2014-10-16 | 2015-02-18 | 河南理工大学 | A kind of probe anti-fouler of coal mine drilling endoscope |
| CN104912541A (en) * | 2015-07-03 | 2015-09-16 | 中国矿业大学 | Drilling peering instrument casing device and using method thereof |
| CN205577976U (en) * | 2016-02-24 | 2016-09-14 | 四川芙蓉集团实业有限责任公司白皎煤矿 | Probe push rod and be equipped with mining imager of this probe push rod |
| CN106014382A (en) * | 2016-07-12 | 2016-10-12 | 四川大学 | Imaging system of drilling internal fracture space attitude |
| CN205743880U (en) * | 2016-07-12 | 2016-11-30 | 四川大学 | The imaging system of crevice space occurrence in boring |
| CN206319877U (en) * | 2016-12-27 | 2017-07-11 | 中国矿业大学(北京) | A kind of inspection instrument for borehole based on fluorescent effect |
| CN206655690U (en) * | 2017-04-05 | 2017-11-21 | 山东科技大学 | A kind of drilling peeping device with support guide effect |
-
2018
- 2018-08-23 CN CN201810963701.3A patent/CN109083628A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012223458A1 (en) * | 2012-12-17 | 2014-06-18 | Rohöl-Aufsuchungs Aktiengesellschaft | Video probe and method for borehole inspection |
| CN203347783U (en) * | 2013-05-27 | 2013-12-18 | 山东科技大学 | Mine borehole imaging device hole inlet segment structure |
| CN203729976U (en) * | 2014-01-09 | 2014-07-23 | 中国矿业大学 | All-dimensional peeping probe and positioning device for coal mine downhole drilling |
| CN104110258A (en) * | 2014-07-07 | 2014-10-22 | 西安科技大学 | Mine downhole drilling well logging analysis meter and method |
| CN104314555A (en) * | 2014-10-16 | 2015-01-28 | 河南理工大学 | Probing method of coal mine drilling probing instrument |
| CN204163711U (en) * | 2014-10-16 | 2015-02-18 | 河南理工大学 | A kind of probe anti-fouler of coal mine drilling endoscope |
| CN104912541A (en) * | 2015-07-03 | 2015-09-16 | 中国矿业大学 | Drilling peering instrument casing device and using method thereof |
| CN205577976U (en) * | 2016-02-24 | 2016-09-14 | 四川芙蓉集团实业有限责任公司白皎煤矿 | Probe push rod and be equipped with mining imager of this probe push rod |
| CN106014382A (en) * | 2016-07-12 | 2016-10-12 | 四川大学 | Imaging system of drilling internal fracture space attitude |
| CN205743880U (en) * | 2016-07-12 | 2016-11-30 | 四川大学 | The imaging system of crevice space occurrence in boring |
| CN206319877U (en) * | 2016-12-27 | 2017-07-11 | 中国矿业大学(北京) | A kind of inspection instrument for borehole based on fluorescent effect |
| CN206655690U (en) * | 2017-04-05 | 2017-11-21 | 山东科技大学 | A kind of drilling peeping device with support guide effect |
Non-Patent Citations (3)
| Title |
|---|
| 孙向阳等: "矿用钻孔窥视仪在煤巷掘进中的应用", 《能源技术与管理》 * |
| 张书军等: "深孔爆破切顶卸压控制沿空掘巷围岩变形技术研究", 《煤炭工程》 * |
| 阎少宏等: "《综放开采顶煤顶板活动规律及应用》", 30 September 2003, 北京：煤炭工业出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110318807A (en) * | 2019-06-24 | 2019-10-11 | 太原理工大学 | Determine the endoscope orientation system and its application method of crack attitude in drilling |
| CN111155983A (en) * | 2020-01-19 | 2020-05-15 | 湖南科技大学 | Hollow inclusion strain gauge mounting device and method |
| CN111155983B (en) * | 2020-01-19 | 2024-04-19 | 湖南科技大学 | Device and method for installing strain gauge of hollow bag body |
| CN111361021A (en) * | 2020-04-03 | 2020-07-03 | 中国矿业大学(北京) | Circumferential peeping device for surrounding rock drilling and using method |
| CN111361021B (en) * | 2020-04-03 | 2021-09-14 | 中国矿业大学(北京) | Circumferential peeping device for surrounding rock drilling and using method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109083628A (en) | The method that a kind of pair of inspection instrument for borehole photoelectric probe is pushed | |
| CN203729976U (en) | All-dimensional peeping probe and positioning device for coal mine downhole drilling | |
| Li et al. | ISRM suggested method for rock fractures observations using a borehole digital optical televiewer | |
| US9584711B2 (en) | Imaging methods and systems for controlling equipment in remote environments | |
| CN106869964B (en) | A kind of weathering shale crush roadway grouting parameter automatic monitoring system and detection of grouting effects method | |
| CN203347783U (en) | Mine borehole imaging device hole inlet segment structure | |
| CN104314555A (en) | Probing method of coal mine drilling probing instrument | |
| US8916816B2 (en) | Imaging systems and image fiber bundles for downhole measurement | |
| CN105318824B (en) | A kind of method that wall rock loosening ring is measured based on distributed resistance foil gauge | |
| CN106248672B (en) | The recognition methods of rock crack mode of extension and system in a kind of live hole based on DIC technology | |
| US9528369B2 (en) | Production logging tool and method for analyzing a produced fluid | |
| KR101294241B1 (en) | Probe drilling geotechnical evaluation system attached to tunnel boring machine for predicting forward geology and tunnel construction apparatus and method using thereof | |
| CN1710425A (en) | Wall-rock crack scanning detector | |
| CN108956768A (en) | A kind of soil antidetonation suitability monitoring device based on GIS technology | |
| CA2997155A1 (en) | Sound level meter-based tunnel roof rock protodyakonov coefficient detecting-while-drilling apparatus and method | |
| CN111852452A (en) | Drilling and pushing integrated precise drilling peeping device and method | |
| CN209179747U (en) | A kind of plough groove type push rod for coal mine drilling endoscope | |
| CN106032750B (en) | Geological logging instrument based on drilling energy spectrum | |
| Li et al. | Identifying the geological interface of the stratum of tunnel granite and classifying rock mass according to drilling energy theory | |
| CN103233686A (en) | Manual pipe bit | |
| CN204163711U (en) | A kind of probe anti-fouler of coal mine drilling endoscope | |
| JP4081499B2 (en) | Exploration device well insertion device and exploration device well insertion method | |
| CN106640064B (en) | A kind of the rock sample extraction element and rock sample extracting method of logging tool | |
| JP3262766B2 (en) | Ground environment survey method and ground environment survey device | |
| CN213956840U (en) | Soil sampling device for geological exploration |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |