CN117168874A - Undisturbed soil sampling device and sampling method for ecological geological survey - Google Patents
Undisturbed soil sampling device and sampling method for ecological geological survey Download PDFInfo
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- CN117168874A CN117168874A CN202311034066.8A CN202311034066A CN117168874A CN 117168874 A CN117168874 A CN 117168874A CN 202311034066 A CN202311034066 A CN 202311034066A CN 117168874 A CN117168874 A CN 117168874A
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- 238000005070 sampling Methods 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000005527 soil sampling Methods 0.000 title claims abstract description 26
- 238000005553 drilling Methods 0.000 claims abstract description 80
- 239000002689 soil Substances 0.000 claims abstract description 68
- 239000012528 membrane Substances 0.000 claims abstract description 61
- 238000011835 investigation Methods 0.000 claims abstract description 12
- 238000013461 design Methods 0.000 claims abstract description 10
- 238000001514 detection method Methods 0.000 claims abstract description 7
- 239000002390 adhesive tape Substances 0.000 claims description 13
- 239000011324 bead Substances 0.000 claims description 12
- 230000009471 action Effects 0.000 claims description 8
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 abstract description 10
- 238000012360 testing method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000019771 cognition Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229920006302 stretch film Polymers 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
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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
Abstract
The invention belongs to the technical field of geological detection sampling equipment, in particular to an ecological geological investigation undisturbed soil sampling device and a sampling method, comprising a drilling pipe with two open ends, wherein one end of the drilling pipe is in a necking design, one end of the drilling pipe is connected with a driving cover through threads, and the driving cover is externally connected with driving equipment; the soil sample cutting device comprises a drilling pipe, a soil sample cutting device and a soil sample cutting device, wherein the soil sample cutting device is used for cutting soil samples; the invention relates to a lifting assembly, which is matched with a drilling pipe and a segmented sampling assembly and is used for tightening a binding belt, the undisturbed soil is divided into a plurality of sections, and the deformation of the elastic membrane is utilized to separate the plurality of sections of undisturbed soil, so that the probability of undistorted soil is reduced, and the true reference value of the test result is enhanced.
Description
Technical Field
The invention belongs to the technical field of geological detection sampling equipment, and particularly relates to an undisturbed soil sampling device and a sampling method for ecological geological investigation.
Background
At present, china is greatly advancing ecological civilization construction, meanwhile, in order to improve interaction cognition degree of an ecological system and a geological environment, and support national soil space utilization and ecological system protection and restoration, new requirements are provided for geological investigation work, in ecological geological investigation, measurement of parameters including volume weight, water content, conductivity and the like is carried out on undisturbed soil samples by collecting undisturbed soil samples of weathered zones, air-packed zones, earth-forming parent substances and soil, and the method is one of important means for analyzing local landform changes in detail.
When carrying out undisturbed soil sample to multilayer geological environment such as weathering area, package gas area, native matrix, adopt the mode of boring into the sample generally, under the effect of external power, insert the sampler underground, utilize the inner chamber of sampler to take a sample to the soil layer, form columniform soil sample, nevertheless find in actual operation in-process, when soil layer structure is comparatively loose, the space occupation ratio is big, when non-cohesive soil content is high, at the in-process that the soil model took out, the phenomenon that very easily leads to soil sand to mix, disturbance produces, and the soil of sampler bottom drops easily, cause the sampler to take a sample the integrality relatively poor, the maintenance effect of structure between the multiple soil layers is relatively poor.
In the related art, in order to reduce disturbance to a sample in a sampling process and enhance the integrity of the sample, a sampler is usually reformed, so that the bottom of the sampler is closed after the sampler samples, and then the sample in an inner cavity of the sampler is completely taken out, but after the sample is taken out, the sample is subjected to external force action among multiple layers of soil layers on a vertical plane of the sample before detection due to lack of control over the sample, so that conditions such as soil layer mixing, water evaporation and transfer are generated, the obtained undisturbed soil sample is misaligned, and further the common trust of the sample is reduced, so that accurate analysis and local geological characteristics are not facilitated.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is known to a person skilled in the art.
Disclosure of Invention
In order to overcome the defects of the prior art and solve the technical problems, the invention provides an undisturbed soil sampling device and a sampling method for ecological geological investigation.
The technical scheme adopted for solving the technical problems is as follows: the invention relates to an ecological geological survey undisturbed soil sampling device, which comprises a drilling pipe with two open ends, wherein one open end of the drilling pipe is in a necking design, one end of the drilling pipe is connected with a driving cover through threads, and the driving cover is externally connected with driving equipment;
the soil sample cutting device comprises a drilling pipe, a soil sample cutting device and a soil sample cutting device, wherein the soil sample cutting device is used for cutting soil samples;
the sectional sampling assembly comprises a plurality of sample tubes, wherein the sample tubes are thin-wall transparent tubes with two open ends, and the diameter of each sample tube is larger than that of a necking part of a drilling tube;
elastic films are fixedly arranged on two adjacent sample tubes together, and the elastic films are made of elastic films;
the device comprises a strap and an extension tube, wherein the extension tube is fixedly arranged on the outer wall of the sample tube, the end part of the strap is positioned in the extension tube, the middle part of the strap extends to the outer side of the elastic membrane, and a sliding groove is formed in the drilling tube corresponding to the extension tube;
the tightening block is slidably arranged in the inner cavity of the extension pipe, and the binding bands are fixedly connected with the tightening block;
the intercepting channels are formed by gaps existing between the end parts of the plurality of sample tubes after the plurality of sample tubes are connected through the elastic membrane, and the middle parts of the binding bands are aligned with the intercepting channels in an initial state;
and the lifting assembly is matched with the drilling pipe and the segmented sampling assembly and is used for tightening the binding belt.
Specifically, the elastic membrane and the extension pipes are symmetrically arranged on two sides of the sample pipe, the elastic membrane and the extension pipes are alternately arranged, and two ends of the binding belt respectively extend into two adjacent extension pipes.
Specifically, the elastic membrane middle part has been seted up and has been walked the hole, it is parallel with the interception passageway to walk the hole, the band middle part runs through the hole that walks.
Specifically, the extension pipe is the same with sample tube length, draw-in groove has been seted up to extension pipe one end, and other end fixed mounting has the fixture block, and adjacent two the extension pipe passes through draw-in groove, fixture block joint connection.
Specifically, the adhesive tape is all fixed mounting at elastic membrane both ends, the adhesive tape is designed with the hole parallel that walks, and the adhesive tape surface paste has the release paper under the initial state.
Specifically, scale marks are carved on the sample tube, and the scale marks are used for assisting in pasting an elastic film.
Specifically, the lifting assembly comprises a linkage rope, and the linkage rope is fixedly connected with the tightening block;
the top cover is slidably arranged in the drilling pipe, the top cover is sleeved at the top end of the sample pipe, and the linkage rope is fixedly connected with the top cover;
the ejector rod is connected with the ejector rod in a clamping way on the top cover, the ejector rod is far away from the T-shaped design on one side of the top cover, the driving cover is provided with a one-way groove, one-way groove is designed with an inclined plane and a straight plane on one side, and one end of the ejector rod far away from the top cover is connected with the one-way groove in a clamping way.
Specifically, all set up the spread groove on the tightening block, fixed mounting has equidistant card pearl of arranging on the linkage rope, card pearl diameter is greater than the spread groove diameter, fixed mounting has the shell fragment of slope range in the extension pipe, the shell fragment is located the motion path of card pearl.
Specifically, the ejector rod is made of a spring telescopic rod and is used for matching the distance between the sample tube and the driving cover.
An ecological geological survey undisturbed soil sampling method comprises the following steps:
a1: marking a position to be sampled, then transporting sampling equipment to the position to be sampled, manually butting a plurality of sample tubes and extension tubes with each other, and inserting a clamping block into a clamping groove when butting so as to connect the plurality of sample tubes into a whole;
a2: manually tearing the isolating paper on the surface of the adhesive tape by a worker, pasting the elastic film on the sample tube, and aligning the edge of the elastic film with scales on the sample tube during pasting;
a3: sleeving the top cover at the port of the topmost sample tube, aligning a linkage rope fixedly connected to the top cover with a connecting groove on the tightening block, and manually pressing the linkage rope to press the linkage rope into the connecting groove;
a4: inserting the assembled sample tube, the top cover and the ejector rod into the inner cavity of the drilling tube, enabling the ejector rod to be far away from the necking end of the drilling tube, then connecting the drilling tube with the driving cover in a threaded manner, and inserting the drilling tube into a position to be sampled under the pushing of the driving device;
a5: when the insertion depth of the drilling pipe reaches a preset value, the driving cover is manually rotated, and the driving cover and the top cover are driven to rotate under the action of friction force between the driving cover and the top rod, so that the linkage rope, the tightening block, the binding belt and the elastic membrane are pulled, and the plurality of sample pipes are cut off;
a6: taking out the drilling pipe from the ground, loosening the connection between the driving cover and the drilling pipe, taking out the combination of the top cover and the sample pipe, and transporting to a detection station to finish the sampling operation of undisturbed soil.
The beneficial effects of the invention are as follows:
1. according to the ecological geological survey undisturbed soil sampling device and the ecological geological survey undisturbed soil sampling method, the sectional sampling assembly is arranged, after drilling is finished, soil in a plurality of sample tubes is further divided into multiple sections by virtue of movement of the binding belt and the elastic membrane, meanwhile, multiple sections of undisturbed soil are divided by virtue of deformation of the elastic membrane, in the transportation process, the existence of the elastic membrane can effectively avoid the probability that multiple sections of undisturbed soil are interacted and mixed, meanwhile, the existence of the elastic membrane can also avoid the circulation of moisture, easily evaporated and volatile substances in the undisturbed soil among the multiple sections of undisturbed soil, so that the probability of undisturbed soil distortion is reduced, and the true reference value of a test result is enhanced.
2. According to the original soil sampling device and the original soil sampling method for ecological geological investigation, the elastic membrane and the sample tube are fixedly connected in a pasting type connection mode, so that the operation is convenient and fast, meanwhile, after original soil is collected in the sample tube and conveyed to an inspection place, workers can expose the intercepting channel in a mode of uncovering the elastic membrane, and then sampling and detecting are carried out from the intercepting channel, and the convenience of equipment use is further enhanced.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a partial construction view of the present invention;
FIG. 2 is a perspective view of a sample tube of the present invention;
FIG. 3 is a partial construction view of a pull assembly;
FIG. 4 is a cross-sectional view of an extension pipe;
FIG. 5 is a perspective view of a stretch film;
FIG. 6 is an overall cross-sectional view of the present invention;
FIG. 7 is an assembly view of the ejector pin and the drive cap;
FIG. 8 is a flow chart of a method of the present invention;
in the figure: 1. drilling a pipe; 11. a driving cover; 12. a unidirectional groove; 2. a sample tube; 21. an elastic membrane; 22. a binding belt; 23. an extension tube; 24. a chute; 25. tightening the blocks; 26. intercepting a channel; 3. a pass-through hole; 4. a clamping groove; 41. a clamping block; 42. an adhesive tape; 5. a linkage rope; 51. a top cover; 52. a push rod; 53. a connecting groove; 54. clamping beads; 55. and the elastic sheet.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1 to 8, the undisturbed soil sampling device for ecological geological investigation comprises a drilling pipe 1 with two open ends, wherein the opening at one end of the drilling pipe 1 is in a necking design, one end of the drilling pipe is connected with a driving cover 11 through threads, and the driving cover 11 is externally connected with driving equipment;
the device also comprises a sectional sampling assembly, wherein the sectional sampling assembly is arranged in the drilling pipe 1 and is used for sectionally intercepting soil samples;
the sectional sampling assembly comprises a plurality of sample tubes 2, wherein the sample tubes 2 are thin-wall transparent tubes with two open ends, and the diameter of each sample tube 2 is larger than that of the necking part of the drilling tube 1;
elastic films 21 are fixedly arranged on two adjacent sample tubes 2 together, and the elastic films 21 are made of elastic films;
the device comprises a band 22 and an extension tube 23, wherein the extension tube 23 is fixedly arranged on the outer wall of the sample tube 2, the end part of the band 22 is positioned in the extension tube 23, the middle part of the band 22 extends to the outer side of the elastic membrane 21, and a sliding groove 24 is formed in the drilling tube 1 corresponding to the extension tube 23;
the tightening block 25 is slidably arranged in the inner cavity of the extension pipe 23, and the binding bands 22 are fixedly connected with the tightening block 25;
a intercepting channel 26, wherein after the plurality of sample tubes 2 are connected through the elastic membrane 21, gaps existing between the end parts of the sample tubes form the intercepting channel 26, and the middle part of the strap 22 is aligned with the intercepting channel 26 in an initial state;
a lifting assembly which is matched with the drilling pipe 1 and the segmented sampling assembly and is used for tightening the binding belt 22;
in ecological geological investigation activities, multi-point shallow drilling sampling is often required to be carried out on an investigation region, undisturbed soil is obtained and then is transported to a detection mechanism, the undisturbed soil containing multiple layers of soil such as weathered zone, air-covered zone and earth-forming matrix is detected, further reference is provided for ecological geological investigation, in the sampling process of undisturbed soil, firstly, a segmented sampling assembly is assembled, then the segmented sampling assembly is filled into a drilling pipe 1, a driving cover 11 and the drilling pipe 1 are in threaded connection, then external driving equipment is started, under the driving of the driving equipment, the driving cover 11 and the drilling pipe 1 drill into a soil layer, specifically, when the segmented sampling assembly is assembled, a plurality of sample pipes 2 are taken out, the plurality of sample pipes 2 are coaxially aligned, then, the plurality of sample pipes 2 are fixedly connected in sequence by adopting an elastic membrane 21, and in the connecting process, the same interval exists among a plurality of sample tubes 2, namely, a intercepting channel 26 is reserved, after the sample tubes 2 are assembled, the intercepting channel is filled into the inner cavity of the drilling tube 1, as one end of the drilling tube 1 is in a necking shape, the diameter of the necking position of the drilling tube 1 is smaller than that of the sample tubes 2, after filling, a driving cover 11 is connected to the end of the drilling tube 1 again, the drilling tube 1 drills deep into a soil layer under the pushing of external driving equipment, soil in an opening of the corresponding drilling tube 1 moves into the inner cavity of the drilling tube 1 and then enters the inside of the sample tube 2, and as the drilling depth increases, the soil contained in the sample tube 2 gradually increases, a depth mark exists on the outer wall of the drilling tube 1 in the invention, so when the drilling depth of the drilling tube 1 reaches the preset depth, the drilling is stopped at the moment, a lifting assembly is started, and the lifting assembly is started to operate, the tightening block 25 is driven to move in the extension pipe 23, the tightening block 25 moves to pull the strap 22, the middle of the strap 22 is located at the outer side of the elastic membrane 21, so that the strap 22 pulls the elastic membrane 21 to move towards the intercepting channel 26, in the moving process, the strap 22 and the elastic membrane 21 partition soil in the intercepting channel 26, on one hand, the soil in the sample pipes 2 is partitioned from the soil outside, on the other hand, the soil in the sample pipes 2 is partitioned, after the soil is partitioned, the drilling pipe 1 is taken out from the ground by using the driving equipment, the driving cover 11 is separated from the drilling pipe 1, the sample pipes 2 in the inner cavity of the drilling pipe 1 are taken out, and the sample pipes 2 connected into a whole are directly conveyed, namely, the sampling operation of the original soil is completed.
According to the invention, the sectional sampling assembly is arranged, after drilling is finished, soil in the plurality of sample tubes 2 is further divided by the movement of the binding belt 22 and the elastic membrane 21, so that the undisturbed soil is divided into a plurality of sections, meanwhile, the deformation of the elastic membrane 21 is utilized to separate the plurality of sections of undisturbed soil, in the transportation process, the existence of the elastic membrane 21 can effectively avoid the probability that the plurality of sections of undisturbed soil are interacted and mixed with each other, and meanwhile, the existence of the elastic membrane 21 can also avoid the circulation of moisture, easy evaporation and volatile substances in the undisturbed soil among the plurality of sections of undisturbed soil, thereby reducing the probability of undisturbed soil distortion and enhancing the real reference value of a test result.
As a preferred embodiment of the present invention, the elastic membrane 21 and the extension tube 23 are symmetrically installed at two sides of the sample tube 2, and the elastic membrane 21 and the extension tube 23 are alternately arranged, and two ends of the strap 22 respectively extend into two adjacent extension tubes 23;
through with elastic membrane 21 and extension pipe 23 symmetric distribution in sample pipe 2 both sides, and elastic membrane 21 and extension pipe 23 alternate arrangement, when the pulling assembly pulls tightening block 25 and removes, two tightening blocks 25 simultaneously pull the both ends of band 22, cause two bands 22 to remove by the both sides of intercepting passageway 26 respectively, towards sample pipe 2's middle part, in this process, elastic membrane 21 deformation, and follow band 22 and remove simultaneously, when two bands 22 meet at sample pipe 2 middle part, block up intercepting passageway 26, two bands 22 simultaneous operation on the one hand, respectively by sample pipe 2 both sides to the center motion, can accelerate the shutoff efficiency to intercepting passageway 26, and two elastic membrane 21 joint operation, block up half intercepting passageway 26 respectively, reduce the deformation degree of elastic membrane 21, on the other hand, when intercepting passageway 26 exists the stone, the great object of hardness, two elastic membrane 21 separate operation, when band 22's motion is hindered, can cut, separate passageway 26 as far as possible, the separation effect to intercepting passageway 26 both sides is strengthened to the intercepting passageway 26.
As a preferred embodiment of the present invention, a through hole 3 is formed in the middle of the elastic membrane 21, the through hole 3 is parallel to the intercepting passageway 26, and the middle of the strap 22 penetrates through the through hole 3;
through setting up through hole 3 to extend, run through hole 3 with band 22, make band 22 and elastic membrane 21 combine comparatively inseparably, when band 22 received the tensile force effect, band 22 can drive elastic membrane 21 and remove, and when equipment is assembled, extension pipe 23, tightening piece 25, band 22 and elastic membrane 21 are in connected state, after sample cell 2 dock, only need with elastic membrane 21 fix on sample cell 2 can, reduced the degree of difficulty when the equipment of sampling equipment is assembled.
As a preferred embodiment of the present invention, the length of the extension tube 23 is the same as that of the sample tube 2, one end of the extension tube 23 is provided with a clamping groove 4, the other end is fixedly provided with a clamping block 41, and two adjacent extension tubes 23 are in clamping connection through the clamping groove 4 and the clamping block 41;
when two sample tubes 2 are in butt joint, the clamping blocks 41 on the adjacent extension tubes 23 are inserted into the clamping grooves 4, so that a plurality of extension tubes 23 are clamped into a whole, the sample tubes 2 in the middle of the extension tubes 23 are fixed into a whole at equal intervals under the supporting action of the extension tubes 23, two ends of the elastic membrane 21 are respectively fixed on the two adjacent sample tubes 2 by workers conveniently, the convenience of assembling the sample tubes 2 is further enhanced, and when the sampling equipment is not assembled, the design of separating the sample tubes 2 can reduce the transportation and storage convenience of the sampling equipment components.
As a preferred embodiment of the present invention, the two ends of the elastic membrane 21 are fixedly provided with adhesive strips 42, the adhesive strips 42 are designed in parallel with the passing holes 3, and in an initial state, the surface of the adhesive strips 42 is adhered with release paper;
when assembling, tear the spacer paper on the adhesive tape 42, then press the elastic membrane 21 to the sample tube 2, under the viscidity effect of adhesive tape 42, the elastic membrane 21 is fixed on the sample tube 2, adopt the mode of connection of pasting, carry out fixed connection with the elastic membrane 21 and the sample tube 2, it is comparatively convenient, convenient not only during operation, simultaneously when collecting undisturbed soil in the sample tube 2, and after transporting to the inspection place, the staff can adopt the mode of revealing the elastic membrane 21, expose the interception passageway 26, and then take a sample from the interception passageway 26, detect, further enhancement equipment use's convenience, it is to be understood that elastic membrane 21 and adhesive tape 42 that adopts in the invention are transparent material, consequently, after gathering undisturbed soil in the sample tube 2, the staff of being convenient for directly observe.
As a preferred embodiment of the present invention, the sample tube 2 is marked with graduation marks, and the graduation marks are used for assisting the elastic film 21 to adhere;
the scale mark evenly distributed is at the both ends of sample cell 2, when needs paste elastic membrane 21 on sample cell 2, the staff aligns elastic membrane 21's edge and scale mark, later press elastic membrane 21 on sample cell 2, the existence of scale mark can effectual reinforcing elastic membrane 21's installation standard degree, simultaneously when practical application, because the soil environment that needs to take the region has the difference, therefore the staff is after rough estimation earth and surface soil's loose degree, can select by oneself to pull elastic membrane 21 when pasting, and then make elastic membrane 21's edge and different scale mark align, cause elastic membrane 21 after fixed, itself has produced elastic deformation, and then make elastic membrane 21 itself tense degree increase, after the original soil gets into sample cell 2 inner chamber, the elastic membrane 21 that tenses can prevent by intercepting passageway 26 outward flow of soil.
As a preferred embodiment of the invention, the lifting assembly comprises a linkage rope 5, and the linkage rope 5 is fixedly connected with a tightening block 25;
the top cover 51 is slidably arranged in the drilling tube 1, the top cover 51 is sleeved at the top end of the sample tube 2, and the linkage rope 5 is fixedly connected with the top cover 51;
the ejector rod 52 is connected to the top cover 51 in a clamping manner, the ejector rod 52 is in a T-shaped design at one side far away from the top cover 51, the driving cover 11 is provided with a one-way groove 12, one side inclined surface and one side straight surface of the one-way groove 12 are designed, and one end of the ejector rod 52 far away from the top cover 51 is connected with the one-way groove 12 in a clamping manner;
when the depth of the drilling pipe 1 inserted into the ground reaches the expected depth, it is required to know that the driving device adopted in the invention gives the driving force of the driving cover 11 perpendicular to the ground when working, such as a percussion drill, and the like, a worker manually rotates the driving cover 11 to rotate, when the driving cover 11 rotates, the ejector rod 52 which is in clamping connection with the driving cover 11 through the unidirectional groove 12 synchronously rotates, the top cover 51 which is in clamping connection with the bottom end of the ejector rod 52 rotates along with the driving cover 11, the linkage rope 5 is pulled when the top cover 51 rotates, and the linkage rope 5 is fixedly connected with the tightening blocks 25, so that the linkage rope 5 pulls the tightening blocks 25 to synchronously move, and further, a pulling force is formed on the binding belt 22, so that the binding belt 22 pulls the elastic film 21 to divide and separate the intercepting channel 26.
As a preferred embodiment of the present invention, the tightening blocks 25 are provided with connecting grooves 53, the linking ropes 5 are fixedly provided with clamping beads 54 arranged at equal intervals, the diameter of each clamping bead 54 is larger than that of the connecting groove 53, the extending pipe 23 is fixedly provided with spring plates 55 arranged in an inclined manner, and the spring plates 55 are positioned on the moving path of the clamping beads 54;
after the sample tube 2 is assembled, the top cover 51 is sleeved on the top end of the uppermost sample tube 2, then, the linkage rope 5 fixed on the top cover 51 is pulled into the extension tube 23, the linkage rope 5 is pressed into the connecting groove 53 on the tightening block 25, when the linkage rope 5 pulls the tightening block 25 to move, the diameter of the clamping bead 54 on the linkage rope 5 is larger than that of the connecting groove 53, so that the tightening block 25 is driven to synchronously move when the linkage rope 5 moves, meanwhile, the clamping bead 54 on the linkage rope 5 pushes the elastic sheet 55 in the moving process, the elastic sheet 55 is caused to elastically deform, the clamping bead 54 passes through the elastic sheet 55, when the band 22 and the elastic film 21 separate the intercepting channel 26, at the moment, the worker rotates the driving cover 11 again, so that the driving cover 11 is tightly connected with the drilling tube 1, then, under the driving of the driving equipment, in the process, the clamping bead 54 reversely pushes the elastic sheet 55 to close the gap when the clamping bead 54 reversely pushes the elastic sheet 55, and then the linkage rope 5 cannot reversely move, and the elastic sheet 21 maintains the force of the elastic sheet 2 to the adjacent sample tube 2 when the band 25 is separated.
As a preferred embodiment of the invention, the ejector rod 52 is made of a spring telescopic rod and is used for matching the distance between the sample tube 2 and the driving cover 11, and the diameter of the sample tube 2 is larger than that of the necking part of the drilling tube 1;
after the assembled sample tube 2 and the top cover 51 are placed in the drilling tube 1, at the moment, under the action of the necking end of the drilling tube 1, the bottom end of the sample tube 2 is limited, then the top rod 52 is clamped at the top end of the top cover 51, then the driving cover 11 is screwed on the drilling tube 1, under the action of the connection of threads, the driving cover 11 is connected with the drilling tube 1, in the process, the top rod 52 is inserted into the unidirectional groove 12 under the action of an internal spring, at the moment, the rotating direction of the driving cover 11 is opposite to the inclined plane direction of the unidirectional groove 12, so that when the driving cover 11 rotates, the top end in the unidirectional groove 12 is contacted with the inclined plane of the unidirectional groove 12, under the action of the inclined plane, the top rod 52 is compressed and separated from the unidirectional groove 12, and when the driving cover 11 rotates in the opposite direction, the driving cover 11 is contacted with the straight plane of the unidirectional groove 12, so that the driving cover 11 pushes the top rod 52 to rotate, and further plays the role of pulling the rope 5, meanwhile, the distance between the top rod 51 and the driving cover 11 is elastically adjusted, in the expansion and contraction range of the top rod 52, the quantity of the driving cover 11 can be flexibly adjusted, the quantity of the sample tube 2 can be further adjusted, and the assembled sample tube 2 can be assembled, and the length of the assembled sample tube 2 can be further assembled, and the assembled tube 2 can be adjusted, and the assembled tube 2 can be matched with the expansion and the sample tube 2 can be fixed, and the length of the assembled tube 2 can be subjected to the expansion and the tube 2 is fixed, and the pipe after the tube is assembled, and the tube is subjected to the expansion and the pipe 2.
An ecological geological survey undisturbed soil sampling method comprises the following steps:
a1: marking a position to be sampled, then transporting the sampling equipment to the position to be sampled, manually butting the plurality of sample tubes 2 and the extension tubes 23 with each other, and inserting the clamping blocks 41 into the clamping grooves 4 during butting so as to connect the plurality of sample tubes 2 into a whole;
a2: manually tearing off the isolation paper on the surface of the adhesive tape 42 by a worker, pasting the elastic film 21 on the sample tube 2, and aligning the edge of the elastic film 21 with the scale marks on the sample tube 2 during pasting;
a3: sleeving the top cover 51 at the port of the topmost sample tube 2, aligning the linkage rope 5 fixedly connected to the top cover 51 with the connecting groove 53 on the tightening block 25, and manually pressing the linkage rope 5 to press the linkage rope 5 into the connecting groove 53;
a4: the assembled sample tube 2, the top cover 51 and the ejector rod 52 are inserted into the inner cavity of the drilling tube 1, the ejector rod 52 is far away from the necking end of the drilling tube 1, then the drilling tube 1 is in threaded connection with the driving cover 11, and the drilling tube 1 is inserted into a position to be sampled under the pushing of the driving device;
a5: when the insertion depth of the drilling pipe 1 reaches a preset value, the driving cover 11 is manually rotated, and under the action of friction force between the driving cover 11 and the ejector rod 52, the ejector rod 52 and the top cover 51 are driven to rotate, so that the linkage rope 5, the tightening block 25, the binding belt 22 and the elastic membrane 21 are pulled, and the plurality of sample pipes 2 are cut off;
a6: the drilling pipe 1 is taken out from the ground, the connection between the driving cover 11 and the drilling pipe 1 is loosened, then the combination of the top cover 51 and the sample pipe 2 is taken out and transported to a detection station, and the sampling operation of undisturbed soil is completed.
The foregoing has shown and described the basic principles, principal 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, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The undisturbed soil sampling device for ecological geological investigation comprises a drilling pipe (1) with two open ends, wherein one end of the drilling pipe (1) is provided with an opening in a necking design, one end of the drilling pipe is connected with a driving cover (11) through threads, and the driving cover (11) is externally connected with driving equipment;
the method is characterized in that: the soil sampling device comprises a drilling pipe (1), a soil sample collecting assembly, a sampling assembly and a sampling assembly, wherein the drilling pipe (1) is provided with a plurality of holes;
the sectional sampling assembly comprises a plurality of sample tubes (2), wherein the sample tubes (2) are thin-wall transparent tubes with openings at two ends, and the diameter of each sample tube (2) is larger than that of a necking part of the drilling tube (1);
elastic films (21) are fixedly arranged on two adjacent sample tubes (2), and the elastic films (21) are made of elastic films;
the device comprises a binding band (22) and an extension tube (23), wherein the extension tube (23) is fixedly arranged on the outer wall of the sample tube (2), the end part of the binding band (22) is positioned in the extension tube (23), the middle part of the binding band (22) extends to the outer side of the elastic membrane (21), and a sliding groove (24) is formed in the drilling tube (1) corresponding to the extension tube (23);
the tightening block (25) is slidably arranged in the inner cavity of the extension pipe (23), and the binding bands (22) are fixedly connected with the tightening block (25);
a intercepting channel (26), wherein after a plurality of sample tubes (2) are connected through elastic films (21), gaps existing between the end parts of the sample tubes form the intercepting channel (26), and the middle part of the binding belt (22) is aligned with the intercepting channel (26) in an initial state;
and the lifting assembly is matched with the drilling pipe (1) and the segmented sampling assembly and is used for tightening the binding belt (22).
2. An ecological geological survey undisturbed soil sampling device as defined in claim 1, wherein: the elastic membrane (21) and the extension pipes (23) are symmetrically arranged on two sides of the sample pipe (2), the elastic membrane (21) and the extension pipes (23) are alternately arranged, and two ends of the binding belt (22) respectively extend into the two adjacent extension pipes (23).
3. An ecological geological survey undisturbed soil sampling device as defined in claim 2, wherein: the middle part of the elastic membrane (21) is provided with a passing hole (3), the passing hole (3) is parallel to the intercepting channel (26), and the middle part of the binding belt (22) penetrates through the passing hole (3).
4. An ecological geological survey undisturbed soil sampling device as defined in claim 3, wherein: the length of the extension tube (23) is the same as that of the sample tube (2), a clamping groove (4) is formed in one end of the extension tube (23), a clamping block (41) is arranged at the other end of the extension tube, and two adjacent extension tubes (23) are connected through the clamping groove (4) and the clamping block (41) in a clamping mode.
5. An ecological geological survey undisturbed soil sampling device as defined in claim 4, wherein: the elastic membrane (21) both ends are all fixed mounting has adhesive tape (42), adhesive tape (42) and the parallel design of hole (3) of walking, in the initial state adhesive tape (42) surface paste has the release paper.
6. An ecological geological survey undisturbed soil sampling device as defined in claim 5, wherein: scale marks are carved on the sample tube (2), and the scale marks are used for assisting the elastic film (21) to be stuck.
7. An ecological geological survey undisturbed soil sampling device as defined in claim 6, wherein: the lifting assembly comprises a linkage rope (5), and the linkage rope (5) is fixedly connected with the tightening block (25);
the top cover (51) is slidably arranged in the drilling pipe (1), the top cover (51) is sleeved at the top end of the sample pipe (2), and the linkage rope (5) is fixedly connected with the top cover (51);
ejector rod (52), the block is connected with ejector rod (52) on top cap (51), ejector rod (52) keep away from top cap (51) one side T shape design, set up unidirectional tank (12) on driving lid (11), unidirectional tank (12) one side inclined plane, one side straight face design, top cap (51) one end and unidirectional tank (12) block connection are kept away from to ejector rod (52).
8. An ecological geological survey undisturbed soil sampling device as defined in claim 7, wherein: the tightening blocks (25) are provided with connecting grooves (53), clamping beads (54) which are arranged at equal intervals are fixedly arranged on the linkage ropes (5), the diameters of the clamping beads (54) are larger than those of the connecting grooves (53), elastic pieces (55) which are obliquely arranged are fixedly arranged in the extension pipes (23), and the elastic pieces (55) are located on the moving paths of the clamping beads (54).
9. An ecological geological survey undisturbed soil sampling device as defined in claim 8, wherein: the ejector rod (52) is made of a spring telescopic rod and is used for matching the distance between the sample tube (2) and the driving cover (11).
10. The original soil sampling method for ecological geological investigation is characterized by comprising the following steps of: the ecological geological survey undisturbed soil sampling method is suitable for the ecological geological survey undisturbed soil sampling device as described in the claims 1-9, and comprises the following steps:
a1: marking a position to be sampled, then transporting sampling equipment to the position to be sampled, manually butting a plurality of sample tubes (2) and extension tubes (23) with each other, and inserting a clamping block (41) into a clamping groove (4) during butting so as to connect the plurality of sample tubes (2) into a whole;
a2: manually tearing off the isolating paper on the surface of the adhesive tape (42) by a worker, pasting the elastic film (21) on the sample tube (2), and aligning the edge of the elastic film (21) with the scale on the sample tube (2) during pasting;
a3: sleeving the top cover (51) at the port of the topmost sample tube (2), aligning the linkage rope (5) fixedly connected to the top cover (51) with the connecting groove (53) on the tightening block (25), and manually pressing the linkage rope (5) to press the linkage rope (5) into the connecting groove (53);
a4: inserting the assembled sample tube (2), the top cover (51) and the ejector rod (52) into the inner cavity of the drilling tube (1), enabling the ejector rod (52) to be far away from the necking end of the drilling tube (1), then connecting the drilling tube (1) with the driving cover (11) in a threaded manner, and inserting the drilling tube (1) into a position to be sampled under the pushing of driving equipment;
a5: when the insertion depth of the drilling pipe (1) reaches a preset value, the driving cover (11) is manually rotated, and under the action of friction force between the driving cover (11) and the ejector rod (52), the ejector rod (52) and the top cover (51) are driven to rotate, so that the linkage rope (5), the tightening block (25), the binding belt (22) and the elastic membrane (21) are pulled, and the plurality of sample pipes (2) are cut off;
a6: taking out the drilling pipe (1) from the ground, loosening the connection between the driving cover (11) and the drilling pipe (1), taking out the assembly of the top cover (51) and the sample pipe (2), and transporting to a detection station to finish the sampling operation of undisturbed soil.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117387532A (en) * | 2023-12-12 | 2024-01-12 | 哈尔滨师范大学 | Soil freezing depth measuring device and measuring method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117387532A (en) * | 2023-12-12 | 2024-01-12 | 哈尔滨师范大学 | Soil freezing depth measuring device and measuring method |
| CN117387532B (en) * | 2023-12-12 | 2024-02-23 | 哈尔滨师范大学 | Soil freezing depth measuring device and measuring method |
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