CN115875032A - Geotechnical engineering probing sampling device - Google Patents
Geotechnical engineering probing sampling device Download PDFInfo
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- CN115875032A CN115875032A CN202211436365.XA CN202211436365A CN115875032A CN 115875032 A CN115875032 A CN 115875032A CN 202211436365 A CN202211436365 A CN 202211436365A CN 115875032 A CN115875032 A CN 115875032A
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- 238000005070 sampling Methods 0.000 title claims abstract description 127
- 238000005553 drilling Methods 0.000 claims abstract description 41
- 239000002689 soil Substances 0.000 claims abstract description 39
- 239000011435 rock Substances 0.000 claims abstract description 34
- 238000005192 partition Methods 0.000 claims description 69
- 238000002955 isolation Methods 0.000 claims description 39
- 230000005540 biological transmission Effects 0.000 claims description 32
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 125000006850 spacer group Chemical group 0.000 claims 4
- 238000001514 detection method Methods 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 description 11
- 239000010959 steel Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
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Abstract
The invention belongs to the technical field of geological exploration, and particularly relates to a geotechnical engineering drilling sampling device; geotechnical engineering drilling sampling device has corresponding initial condition and memory state before and after gathering geotechnical sample, and it includes: and when the storage chamber is in a storage state, the storage chamber comprises a first sub-chamber to an Nth sub-chamber which are arranged according to the sequence of rock and soil sample storage, N sub-chambers are totally formed, wherein N is more than or equal to 2, and any two sub-chambers are mutually isolated. The geotechnical engineering drilling sampling device can sample for multiple times by one-time drilling, avoids mixing geotechnical samples, separates the geotechnical samples obtained by multiple sampling into different sub-chambers, does not influence the detection result, and improves the working efficiency.
Description
Technical Field
The invention belongs to the technical field of geological exploration, and particularly relates to a geotechnical engineering drilling sampling device.
Background
In geological exploration work, underground rock-soil layers need to be sampled and analyzed, a drilling sampling device is needed to obtain rock-soil samples in the process, in the prior art, for example, chinese patent CN112326923B discloses an earth layer exploration device and an exploration method thereof, and the disclosed technical characteristics are that the earth layer exploration sampling device can only sample once, if sampling needs to be carried out for the second time, the sampling device for the first sampling needs to be taken out from an exploration hole, and then a new sampling device is replaced for sampling, so that the sampling device disclosed in the patent document can not drill for multiple times and sample once, and the working efficiency is low.
Disclosure of Invention
Based on this, it is necessary to provide a geotechnical engineering drilling sampling device to the problem that prior art exists to the sampling device among the solution prior art takes a sample inconvenient problem.
The above purpose is realized by the following technical scheme:
a geotechnical engineering drilling sampling device is provided with a corresponding initial state and a corresponding storage state before and after geotechnical engineering drilling sampling is carried out;
and comprises the following steps: and when the storage chamber is in the storage state, the storage chamber comprises a first sub-chamber to an Nth sub-chamber which are arranged according to the sequence of rock and soil sample storage, wherein N is more than or equal to 2, and any two sub-chambers are isolated from each other.
Further, it still includes:
an isolation assembly having an initial position and a storage position, the isolation assembly capable of isolating the storage chamber from at least two of the sub-chambers isolated from each other when the isolation assembly is in the storage position.
Further, the isolation assembly further comprises a first channel, the first channel is connected with the M-1 sub-chamber and the M sub-chamber, the first channel limits the rock and soil sample to flow from one sub-chamber to the other sub-chamber, and M-1 is more than 0 and less than or equal to N.
Furthermore, the isolation assembly further comprises a one-way valve, the one-way valve limits gas in the L-th sub-chamber to flow to the L-1-th sub-chamber, and L is more than 0 and less than or equal to N and more than or equal to L-1.
Further, it still includes:
an adjustment assembly to move the isolation assembly from the initial position to the storage position.
Further, the isolation assembly includes a partition that isolates two adjacent sub-cavities from each other when in the storage position.
Further, it still includes:
the first shaft body is arranged along a first direction, and the first direction is the direction from the storage chamber inlet to the bottom of the storage chamber; the first shaft body is in guiding fit with the partition plate;
the outer peripheral face of the first shaft body is provided with transmission threads, and the partition plate is in threaded transmission connection with the first shaft body through the transmission threads, so that the partition plate scrapes off rock and soil samples attached to the inner wall of the storage chamber.
Further, the first shaft body rotates in one direction.
Further, the isolation assembly further comprises a torque buckle, the first shaft body and the partition plate are in transmission connection through the torque buckle, and when the force transmitted to the partition plate by the first shaft body is larger than a preset value, the torque buckle enables the first shaft body and the partition plate to be disconnected in transmission.
Further, it still includes:
a housing including a second channel.
The sampling cutter is used for digging rock soil samples.
The driving assembly and the driving device can drive the sampling cutter to dig and take rock and soil samples.
The driving assembly can enable the second channel to be opened or closed, when the second channel is opened, the rock and soil sample dug by the sampling cutter enters the storage chamber through the second channel, and when the second channel is closed, the storage chamber is isolated from the external environment.
The invention has the beneficial effects that: the storage chamber of the sampling unit comprises at least two sub-chambers which are isolated and independent from each other, so that the geotechnical engineering drilling sampling unit can sample for many times, and the working efficiency is improved; put into different sub-chambers with the geotechnical sample isolation of baffle with sample many times, make things convenient for sample many times to the baffle can strike off the adnexed geotechnical sample of storage chamber inner wall, prevents that the geotechnical sample of sample many times from mixing each other.
Drawings
FIG. 1 is a schematic working view of an embodiment of the geotechnical drilling sampling device of the present invention;
fig. 2 is a schematic structural view of a sampling unit of one embodiment of the geotechnical drilling sampling device of the present invention;
fig. 3 is a schematic structural view of a sampling unit of one embodiment of the geotechnical drilling sampling device of the present invention;
fig. 4 is a structural schematic view of another perspective of a sampling unit of one embodiment of the geotechnical engineering drilling sampling apparatus of the present invention;
fig. 5 is a partially enlarged view of a portion a of fig. 4;
fig. 6 is a partially enlarged view of a portion B of fig. 5;
fig. 7 is a schematic structural view of an isolation assembly of one embodiment of the geotechnical engineering drilling sampling apparatus of the present invention;
FIG. 8 is a schematic structural view of one embodiment of the geotechnical drilling sampling device of the present invention;
fig. 9 is a partial enlarged view of a portion C of fig. 8;
FIG. 10 is a schematic structural view of one embodiment of the geotechnical drilling sampling device of the present invention;
wherein:
100. drilling a sample vehicle; 200. a sampling unit;
210. a connecting assembly;
220. a sampling drill bit;
230. a sampling assembly; 231. an isolation component; 2312. a first channel; 2314. a partition plate; 2316. torque buckling; 2318. a third channel; 232. sampling a cutter; 233. a first shaft body; 234. an adjustment assembly; 2341. a lower adjustment block; 2342. an upper adjusting block; 2343. a first hinge shaft; 2344. a second hinge shaft; 2345. a third hinge shaft; 2346. a fourth hinge shaft; 236. a one-way valve; 238. a sample storage tube; 2381. a storage chamber; 2382. a sub-chamber;
240. a drive assembly; 241. a motor; 242. a machine cover; 243. a first drive gear; 244. a torsion spring; 245. a one-way bearing; 246. a second gear; 247. a second shaft body;
250. a housing; 251. a second channel.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below by way of embodiments with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The numbering of the components themselves, such as "first", "second", etc., is used herein only to distinguish between the objects depicted and not to have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
The geotechnical engineering drilling sampling device is described in the specification and attached drawings.
As shown in fig. 1 to 10, an embodiment of the geotechnical engineering drilling sampling device of the present invention comprises: the drilling sampling vehicle 100 and the sampling unit 200; the geotechnical engineering drilling sampling device has corresponding initial state and storage state before and after the geotechnical sample is collected.
The drill sampling car 100 includes a power assembly (not shown in the drawings).
The sampling unit 200 includes a connection assembly 210, a sampling drill 220, and a sampling assembly 230.
The power assembly is in transmission connection with the connecting assembly 210; the sampling bit 220 is disposed below the sampling assembly 230 and is threadedly coupled to drill the geotechnical layers downward.
The sampling assembly 230 comprises a sample storage tube 238, wherein a storage chamber 2381 is arranged in the sample storage tube 238, and the storage chamber 2381 is used for storing sampled rock and soil samples.
In the initial state, the storage chamber 2381 does not store the geotechnical sample.
In a storage state, the storage chamber 2381 comprises at least two sub-chambers 2382 which are isolated from each other, the storage chamber 2381 comprises a first sub-chamber 2382 to an Nth sub-chamber 2382 which are arranged according to the sequence of rock and soil sample storage, N sub-chambers 2382 are totally formed, N is larger than or equal to 2, and any two sub-chambers 2382 are isolated from each other.
During sampling, the storage chamber 2381 of the sampling unit 200 comprises at least two sub-chambers 2382 which are isolated from each other, so that the geotechnical engineering drilling sampling unit 200 of the present invention can drill for multiple times of sampling at one time, thereby improving the working efficiency and reducing the cost of geotechnical sampling.
In one embodiment, as shown in fig. 3 to 7, the sampling unit 200 further includes an isolation component 231; the isolation assembly 231 is disposed over the sample storage tube 238; the number of insulation members 231 is at least one.
The isolation member 231 has an initial position and a storage position. With the isolation member 231 in the initial position, the isolation member 231 is stacked; when the storage position is adopted, the isolation assembly 231 can enable the storage chamber 2381 to isolate at least two sub-chambers 2382 isolated from each other, so that rock and soil samples sampled at each time are isolated, and the mixing of various rock and soil samples is prevented, and the detection result is influenced.
In one embodiment, as shown in fig. 1-7, the isolation assembly 231 further comprises a first channel 2312, the first channel 2312 connects the M-1 sub-chamber 2382 and the M sub-chamber 2382, the first channel 2312 restricts the geotechnical sample in the sub-chamber 2382 from entering the other sub-chambers 2382,0 < M-1 < M ≦ N.
When the sample storage tube 238 is used, the isolation assembly 231 is located at the storage position, the isolation assembly 231 descends along the inner wall of the sample storage tube 238, the first channel 2312 can balance the pressure between the upper sub-chamber 2382 and the lower sub-chamber 2382 which are isolated from each other of the isolation assembly 231, the isolation assembly 231 can descend more smoothly along the sample storage tube 238, and the space utilization rate of the sample storage tube 238 is improved.
In one embodiment, as shown in fig. 1-7, the isolation assembly 231 further comprises a one-way valve 236, the one-way valve 236 restricting the flow of gas within the mth sub-chamber 2382 to the M-1 sub-chamber. It is understood that the check valve 236 may be disposed within the first passage 2312 or may be disposed outside of the first passage 2312.
In one embodiment, as shown in fig. 2-7, sampling unit 200 further includes an adjustment assembly 234, adjustment assembly 234 enabling isolation assembly 231 to be moved from an initial position to a storage position. Adjusting component 234 is disposed below isolation component 231, and adjusting component 234 includes upper adjusting block 2342 and lower adjusting block 2341, and upper adjusting block 2342 is disposed above lower adjusting block 2341, and the upper and lower distances of upper adjusting block 2342 and lower adjusting block 2341 are the thickness of isolation component 231.
As shown in fig. 6, adjustment assembly 234 further includes a first hinge axis 2343, a second hinge axis 2344, a third hinge axis 2345, and a fourth hinge axis 2346.
The first hinge shaft 2343 is fixedly connected to the second shaft body 247, and the third hinge shaft 2345 is fixedly connected to the second shaft body 247; the included angle between the first hinge axis 2343 and the horizontal plane of the third hinge axis 2345 is 180 degrees; one end of the second hinge shaft 2344 is hinged to the first hinge shaft 2343, and the other end of the second hinge shaft 2344 is hinged to the lower adjusting block 2341; one end of a fourth hinge shaft 2346 is hinged to the third hinge shaft 2345, and the other end of the fourth hinge shaft 2346 is hinged to the upper adjusting block 2342.
In one embodiment, as shown in fig. 1-10, the isolation assembly 231 includes a partition 2314, the partition 2314 being a circular plate; in the storage state, the adjusting assembly 234 can switch the isolation assembly 231 to be in the storage position or the initial position, in the storage position, the isolation assembly 231 enters the sample storage tube 238 and descends along the inner wall of the sample storage tube 238, the storage chamber 2381 is divided into at least two sub-chambers 2382 by the partition boards 2314, rock and soil samples in the sub-chambers 2382 are isolated from each other, and mixing is avoided.
It further comprises a housing 250, the housing 250 being provided with a first rail (not shown in the drawings) and a second rail (not shown in the drawings).
In one embodiment, the first passage 2312 is provided in the partition 2314.
In one embodiment, the first channel 2312 is disposed on an inner wall of the sample storage tube 238.
In one embodiment, as shown in fig. 1 to 10, it further includes:
the first shaft body 233, the first shaft body 233 being disposed along a first direction, the first direction being a direction from an entrance of the storage chamber 2381 to a bottom of the storage chamber 2381.
The first shaft body 233 is in guiding fit with the partition 2314, and a third passage 2318 is formed in the partition 2314, and the third passage 2318 is a through hole; the first shaft body 233 penetrates through the third passage 2318 and is in guiding fit with the partition 2314; when the partition 2314 is dropped in the first direction, the first shaft body 233 serves as a guide.
The outer circumferential surface of the first shaft body 233 is provided with a transmission thread, and the partition 2314 is in transmission connection with the first shaft body 233 through the transmission thread.
When the isolation assembly 231 is in the storage position, the first shaft 233 is rotated, and the first shaft 233 moves the partition 2314 downward along the inner wall of the sample storage tube 238 by using the driving screw, so that the partition 2314 scrapes the geotechnical sample attached to the inner wall of the storage chamber 2381.
In one embodiment, as shown in fig. 1 to 10, the first shaft body 233 rotates in one direction.
The sampling unit 200 further comprises a driving assembly 240, the driving assembly 240 comprises a motor 241 and a cover 242, the cover 242 is disposed on the housing 250, and the motor 241 is disposed in the cover 242; the first shaft body 233 is connected with the motor 241 through the one-way bearing 245, and the motor 241 can drive the first shaft body 233 to rotate in a one-way mode, so that the partition 2314 can only move downwards and compact rock and soil samples in the storage chamber 2381, and the space utilization rate of the sample storage tube 238 is improved.
In one embodiment, as shown in fig. 1-7, isolation assembly 231 further includes a torque clip 2316.
The first shaft body 233 is in transmission connection with the partition 2314 through a torque buckle 2316; when the force transmitted by the first shaft body 233 to the partition 2314 is less than or equal to the preset value of the torque buckle 2316, the first shaft body 233 is in transmission connection with the partition 2314 through the torque buckle 2316; when the force transmitted by the first shaft body 233 to the partition 2314 is greater than the preset value of the torque buckle 2316, the torque buckle 2316 disables the transmission connection between the first shaft body 233 and the partition 2314.
As shown in fig. 7, a third channel 2318 is provided at a central position of the partition 2314, a torque buckle 2316 is provided in the third channel 2318, and the torque buckle 2316 includes a first spring (not labeled in the drawings), a second spring (not labeled in the drawings), a first steel ball (not labeled in the drawings), a second steel ball (not labeled in the drawings), a first housing (not labeled in the drawings), and a second housing (not labeled in the drawings); the first shell and the second shell are in the shape of bearing bushes and are arranged in a mirror image mode, and the two shells form a sleeve; the first steel ball is rotatably arranged on the inner wall of the first shell, half volume of the first steel ball is arranged inside the first shell, the other half volume of the first steel ball is arranged outside the first shell, one end of the first spring is fixedly connected to the outer wall of the first shell, and the other end of the first spring is fixedly connected to the inner wall of the third channel 2318; the second steel ball is arranged on the inner wall of the second shell, one half of the volume of the second steel ball is arranged inside the second shell, the other half of the volume of the second steel ball is arranged outside the second shell, one end of the second spring is fixedly connected to the outer wall of the second shell, and the other end of the second spring is fixedly connected to the inner wall of the third channel 2318. The torque buckle 2316 transmits power by sliding the first and second steel balls on the transmission thread of the first shaft body 233.
The elastic force of the first spring and the second spring are equal and are preset values, and the larger the value set by the preset values is, the larger the force that the first shaft body 233 can transmit to the partition 2314 is. When the force transmitted by the first shaft body 233 is less than or equal to a preset value, the first shaft body 233 is in transmission connection with the partition 2314, and the partition 2314 is axially moved along the first direction by the first shaft body 233; when the transmission force of the first shaft body 233 is greater than a preset value, the first steel balls and the second steel balls slide out of the transmission threads of the first shaft body 233, so that the transmission between the first shaft body 233 and the partition board 2314 fails, and the first shaft body 233 no longer transmits power to the partition board 2314; to protect the partition 2314 and the mechanical structure of the first shaft body 233 from damage after the partition 2314 is stopped by the geotechnical sample.
It will be appreciated that the second spring can be replaced by an inelastic plate (not shown in the drawings); the plate body is arranged in the third channel 2318, one end of the plate body is fixedly connected to the outer wall of the second shell, and the other end of the plate body is fixedly connected to the inner wall of the third channel 2318; this arrangement also functions to protect the partition 2314 and the mechanical structure of the first shaft body 233.
In one embodiment, as shown in fig. 1-10, the sampling assembly 230 further comprises a sampling cutter 232, the sampling cutter 232 being capable of excavating a geotechnical sample.
The housing 250 further includes a second channel 251 through which the geotechnical sample scooped by the sampling cutter 232 enters the sample storage tube 238, the sampling cutter 232 being capable of extending or retracting within the housing 250.
The driving assembly 240 further includes a torsion spring 244, a second shaft body 247, a first transmission gear 243, and a second transmission gear 246.
One end of the second shaft body 247 is fixedly connected with the sampling cutter 232, and the other end is fixedly connected with the second transmission gear 246; the first transmission gear 243 is meshed with the second transmission gear 246, and the first transmission gear 243 is fixedly connected with the output shaft of the motor 241; enabling the motor 241 to control the extension or retraction of the sampling cutter 232 into or out of the housing 250.
One end of the torsion spring 244 is fixedly connected to the second shaft body 247, and the other end is fixedly connected to the housing 250; the second transmission gear 246 is always engaged with the first transmission gear 243.
The driving assembly 240 drives the second shaft body 247 to rotate, so that when the sampling cutter 232 extends out of the housing 250, the second channel 251 is opened, the storage chamber 2381 of the sample storage tube 238 is communicated with the external space through the second channel 251, and the rock soil sample enters the storage chamber 2381 from the second channel 251; the driving assembly 240 drives the second shaft 247 to rotate, so that when the sampling tool 232 retracts into the housing 250, the second channel 251 is closed, and the storage chamber 2381 is isolated from the external environment.
When the driving assembly 240 drives the sampling cutter 232 to extend out of the housing 250, the sampling unit 200 is rotated, and the sampling cutter 232 can dig the soil sample, and the dug soil sample enters the storage chamber 2381 of the sample storage tube 238 through the second channel 251.
The partition 2314 has a first position, a second position, and a third position; partition 2314 is in a first position when in a position above upper adjustment block 2342; partition 2314 is in a second position when in position between upper and lower tabs 2342 and 2341; partition 2314 is in a third position below lower knob 2341.
Initially, the partition 2314 is in a first position, the adjustment assembly 234 is in a first state, and the storage chamber 2381 is only the first sub-chamber 2382.
At the beginning of the first sampling, adjustment assembly 234 switches to the second state and diaphragm 2314 enters the second position.
After the first sampling is finished, the adjusting assembly 234 is switched to the first state, and the partition 2314 enters the third position; after the partition 2314 enters the third position, the upper and lower adjusting blocks 2342 and 2341 are not blocked, and the partition 2314 falls into the sample storage tube 238 along the gravity direction and falls above the rock and soil sample for the first sampling;
the partitions 2314 divide the storage chamber 2381 into a first sub-chamber 2382 and a second sub-chamber 2382; the first sampling rock soil sample is in the first sub-chamber 2382; after each sampling, the adjustment assembly 234 releases a septum 2314 into the storage chamber 2381, preventing mixing of the different geotechnical samples.
For the sake of brevity, the working principle of sampling is described above only once.
The sampling procedure is as follows:
preparing for implementation: firstly, drilling a exploratory hole in a construction soil layer, wherein the depth of the exploratory hole is determined according to engineering requirements; the drilling sampling vehicle 100 is utilized to place the sampling unit 200 into the prepared exploratory hole opening, and if the sampling work needs, a worker needs to sample at three different depth positions in the rock-soil exploratory hole respectively, wherein the three depth positions are a first depth position, a second depth position and a third depth position respectively; the first partition plate 2314 and the second partition plate 2314 are stacked inside the housing 250 in this order from bottom to top with the first partition plate 2314 at the lowermost portion.
It is to be understood that the first and second partitions 2314 and 2314 are the partitions 2314 described in the above embodiments, and the two partitions 2314 have the same structure, and are referred to by the terms "first" and "second" for convenience of distinction; the number of the partitions 2314 of the present invention is not limited to the number described in the embodiment of the present invention.
(II) a first sampling stage: in the initial state of the sampling unit 200, the upper adjustment block 2342 is extended, and the lower adjustment block 2341 is retracted, i.e., the adjustment assembly 234 is in the first state; both partitions 2314 are above the upper adjustment block 2342, i.e., both partitions 2314 are in the first position; the sampling cutter 232 is within the housing 250.
The sampling unit 200 is placed into a detection hole by the drilling sampling vehicle 100 and descends to a first depth position, the motor 241 is started again, the motor 241 drives the first transmission gear 243 to rotate, the second transmission gear 246 drives the sampling cutter 232 to extend out of the shell 250 through the rotation of the second shaft body 247, the drilling sampling vehicle 100 drives the sampling unit 200 to rotate again, so that the sampling cutter 232 digs rock and soil samples on the inner wall of the detection hole, the rock and soil samples dug by the sampling cutter 232 enter the sample storage tube 238 through the first through hole, in the process, the adjusting device is switched to the second state, the first shaft body 233 drives the first partition 2314 to the second position, and the second partition 2314 is still at the third position.
After a sufficient number of rock samples are collected for the first depth position, the motor 241 drives the sampling cutter 232 to retract inside the housing 250, and in the process, the adjustment device is switched to the first state, the first shaft body 233 drives the first partition 2314 to the third position, and the second partition 2314 is in the first position.
(III) a second sampling stage: the sampling unit 200 is lowered to the second depth position using the drill sampling car 100.
The motor 241 drives the sampling cutter 232 to extend out of the housing 250, in the process, the adjusting device is switched to the second state, the second partition 2314 descends to the second position, the motor 241 drives the first shaft body 233 to rotate, the first partition 2314 compacts the rock and soil sample in the sample storage tube 238, after the rock and soil sample is compacted to a preset degree, the torque buckle 2316 disables the transmission connection between the second shaft body 247 and the first partition 2314, and the second partition 2314 no longer compresses the rock and soil sample.
After the sampling tool 232 extends out of the housing 250, the drilling and sampling vehicle 100 drives the sampling unit 200 to rotate, the sampling tool 232 scrapes the rock and soil sample on the inner wall of the exploratory hole, and the scraped rock and soil sample enters the sample storage tube 238 from the first through hole.
After a sufficient number of rock samples are collected at the second depth position, the motor 241 drives the sampling cutter 232 to retract inside the housing 250, during which the adjustment device is switched to the first state, the second barrier 2314 is lowered to the third position, and the second shaft body 247 drives the second barrier 2314 to fall.
(IV) a third sampling stage: the sampling unit 200 is lowered to the third depth position using the drill sampling car 100. The motor 241 drives the sampling cutter 232 to extend out of the housing 250, and during this process, the adjustment device is switched to the second state, the motor 241 drives the first shaft body 233 to rotate, so that the first partition 2314 and the second partition 2314 compact the rock and soil sample in the sample storage tube 238, after the rock and soil sample is compacted to a preset degree, the torque buckle 2316 disables the transmission connection between the first shaft body 233 and the second partition 2314, and the second partition 2314 no longer compresses the rock and soil sample.
After the sampling tool 232 extends out of the housing 250, the drilling and sampling vehicle 100 drives the sampling unit 200 to rotate, the sampling tool 232 scrapes the rock and soil sample on the inner wall of the exploratory hole, and the scraped rock and soil sample enters the sample storage tube 238 from the first through hole. After a sufficient number of desired geotechnical samples have been collected at the third depth position, the motor 241 drives the sampling cutter 232 to retract within the housing 250.
(V) a sample retrieval stage: after the sample is collected, the drilling and sampling vehicle 100 takes the sampling unit 200 out of the exploratory hole, unloads the sampling drill bit 220, and takes out the sampling storage cylinder.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of simplicity of description, all possible combinations of the technical features in the above embodiments are not described, however, as long as there is no contradiction between the combinations of the technical features, the technical features should be considered as the scope of description in the present specification.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent should be subject to the appended claims.
Claims (10)
1. The geotechnical engineering drilling sampling device is characterized by having corresponding initial states and storage states before and after geotechnical engineering drilling sampling devices acquire geotechnical samples;
and comprises the following steps: and when the storage chamber is in the storage state, the storage chamber comprises a first sub-chamber to an Nth sub-chamber which are arranged according to the sequence of rock and soil sample storage, wherein N is more than or equal to 2, and any two sub-chambers are isolated from each other.
2. The geotechnical engineering drilling sampling device of claim 1, further comprising:
an isolation assembly having an initial position and a storage position, the isolation assembly capable of isolating the storage chamber from at least two of the sub-chambers isolated from each other when the isolation assembly is in the storage position.
3. The geotechnical engineering drilling sampling device of claim 2, wherein the isolation assembly further comprises a first channel, the first channel connects the M-1 sub-chamber and the M sub-chamber, the first channel restricts geotechnical samples in the sub-chambers from entering other sub-chambers, and 0 < M-1 < M ≦ N.
4. The geotechnical engineering drilling sampling device of claim 2 wherein the isolation assembly further includes a one-way valve that restricts gas in the lth sub-chamber from flowing to the L-1 th sub-chamber, 0 < L-1 < L ≦ N.
5. The geotechnical engineering drilling sampling device according to claim 2, further comprising:
an adjustment assembly to move the isolation assembly from the initial position to the storage position.
6. The geotechnical engineering drilling sampling device of claim 2 wherein said isolation assembly includes a spacer which isolates adjacent two of said sub-cavities from each other when in said storage position.
7. The geotechnical engineering drilling sampling device of claim 6, further comprising:
the first shaft body is arranged along a first direction, and the first direction is the direction from the storage chamber inlet to the bottom of the storage chamber; the first shaft body is in guiding fit with the partition plate;
the outer peripheral face of the first shaft body is provided with transmission threads, and the partition plate is in threaded transmission connection with the first shaft body through the transmission threads, so that the partition plate scrapes off rock and soil samples attached to the inner wall of the storage chamber.
8. The geotechnical engineering drilling sampling device of claim 7 wherein said first shaft is unidirectional in rotation.
9. The geotechnical engineering drilling sampling device of claim 7, wherein the isolation assembly further comprises a torque buckle, the first shaft body and the spacer plate are drivingly connected by the torque buckle, and the torque buckle causes the first shaft body and the spacer plate to be disconnected from a driving connection when a force transmitted by the first shaft body to the spacer plate is greater than a preset value.
10. The geotechnical engineering drilling sampling device of claim 1, further comprising:
a housing comprising a second channel;
the sampling cutter is used for excavating rock and soil samples;
the driving device can drive the sampling cutter to dig a rock-soil sample;
the driving assembly can enable the second channel to be opened or closed, when the second channel is opened, the rock soil sample dug by the sampling cutter enters the storage chamber through the second channel, and when the second channel is closed, the storage chamber is isolated from the external environment.
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