CN111220407A - Continuous undisturbed sample geotome of well shallow layer cutting ring - Google Patents

Continuous undisturbed sample geotome of well shallow layer cutting ring Download PDF

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Publication number
CN111220407A
CN111220407A CN202010237656.0A CN202010237656A CN111220407A CN 111220407 A CN111220407 A CN 111220407A CN 202010237656 A CN202010237656 A CN 202010237656A CN 111220407 A CN111220407 A CN 111220407A
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CN
China
Prior art keywords
rod
soil
transmission rod
rotating handle
soil sampling
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Pending
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CN202010237656.0A
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Chinese (zh)
Inventor
王卫华
龙振东
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Kunming University of Science and Technology
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Kunming University of Science and Technology
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Application filed by Kunming University of Science and Technology filed Critical Kunming University of Science and Technology
Priority to CN202010237656.0A priority Critical patent/CN111220407A/en
Publication of CN111220407A publication Critical patent/CN111220407A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/02Devices for withdrawing samples
    • G01N1/04Devices for withdrawing samples in the solid state, e.g. by cutting
    • G01N1/08Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit

Abstract

The invention discloses a continuous undisturbed sample soil sampler with middle and shallow layer ring cutters, which comprises an inner rod and an outer rod, wherein the outer rod is of a hollow rod-shaped structure, the inner rod is in threaded connection with the outer rod, one end of the inner rod extends out of the outer rod and is detachably connected with a soil sampling barrel base, the bottom end of the soil sampling barrel base is detachably connected with a soil sampling barrel, the bottom end of the soil sampling barrel is detachably connected with a soil sampling cutter head, a plurality of ring cutters are fixed on the inner wall of the soil sampling barrel and are arranged in a winding manner, an outer barrel is arranged outside the soil sampling barrel, the soil sampling barrel is sleeved in the outer barrel, the outer barrel is fixed on the bottom surface of the outer rod, the other end of the inner rod is detachably connected with an extension mechanism, and the top end of the extension mechanism is detachably connected with a rotating mechanism. Meanwhile, the method can realize diversity and has strong practicability.

Description

Continuous undisturbed sample geotome of well shallow layer cutting ring
Technical Field
The invention relates to the technical field of civil engineering investigation, in particular to a medium-shallow layer cutting ring continuous undisturbed sample geotome.
Background
The rock soil sample drilling method in engineering investigation is various, people often adopt a mechanical drilling coring mode aiming at deep rock soil bodies, not only can the coring efficiency be ensured, but also the integrity of the rock soil sample can be ensured, for middle and shallow rock soil bodies, if the rock soil sample is drilled by adopting the drilling machine, time and labor are wasted, the mechanical cost is wasted, and then for middle and shallow rock soil bodies, people can utilize a Luoyang shovel to drill soil.
Although the Luoyang shovel has the advantages of convenience in carrying, simplicity in operation, high soil taking efficiency and the like, the Luoyang shovel also has a plurality of defects, particularly, the Luoyang shovel has large disturbance on undisturbed soil in the using process, and meanwhile, the core taking integrity is poor, but the requirements on the core taking integrity and the disturbed state of a rock soil sample are strict in the civil engineering test process. In the agricultural water and soil science field, the soil sampling often needs to gather original state soil sample, excavates peripheral soil layer under the general condition after needing cutting ring down, not only wastes time, difficultly, and the destructiveness is big moreover.
Disclosure of Invention
The invention aims to provide a continuous undisturbed sample soil sampler with a medium-shallow cutting ring, which aims to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following scheme: the invention provides a medium-shallow layer cutting ring continuous undisturbed sample soil sampler which comprises a soil sampling mechanism, wherein the soil sampling mechanism comprises an inner rod and an outer rod, the outer rod is of a hollow rod-shaped structure, the inner rod is in threaded connection with the inner rod, one end of the inner rod extends out of the outer rod and is detachably connected with a soil sampling barrel base, the bottom end of the soil sampling barrel base is detachably connected with a soil sampling barrel, the bottom end of the soil sampling barrel is detachably connected with a soil sampling cutter head, a plurality of cutting rings are fixed on the inner wall of the soil sampling barrel, the plurality of cutting rings are arranged in a coiled mode, an outer barrel is arranged outside the soil sampling barrel, the soil sampling barrel is sleeved in the outer barrel, the outer barrel is fixed on the bottom surface of the outer rod, the other end of the inner rod is detachably connected with an extension mechanism, and the top end of the.
Preferably, an outer rod internal thread is formed in the inner wall of the bottom end of the outer rod, the outer rod internal thread is formed in the joint of the outer barrel and the outer rod, a rod body thread is formed in the inner rod, the outer rod internal thread is matched with the rod body thread, a rod head concave locking groove is formed in the top surface of the inner rod, and an outer rod external thread is formed in the outer wall of the top end of the outer rod.
Preferably, extension mechanism includes outer drive rod and interior transfer line, outer drive rod is hollow shaft-like structure, interior transfer line can be dismantled with interior pole and be connected, the transfer line internal thread has been seted up on the bottom inner wall of outer drive rod, the transfer line internal thread is seted up interior pole and interior transfer line junction, same pole body screw thread has been seted up on the interior transfer line, pole body screw thread and transfer line internal thread looks adaptation, the protruding locked groove of pole head has been seted up on the bottom surface of interior transfer line, the protruding locked groove of pole head can be dismantled with the concave locked groove of pole head and be connected, the same concave locked groove of pole head has been seted up on the top surface of interior transfer line, outer drive rod can be dismantled and be connected the top of outer pole, the transfer line external screw thread has been seted up on the outer wall.
Preferably, the rotating mechanism includes the rotating handle, the same pole body screw thread has been seted up on the pole body of rotating handle, the bottom threaded connection of rotating handle has the rotating handle cap, the upper portion of rotating handle cap is the narrow portion, and the lower part is wide portion, the narrow portion of rotating handle cap has been seted up the narrow internal thread of rotating handle cap, the wide portion of rotating handle cap has been seted up the wide internal thread of rotating handle cap, the narrow internal thread of rotating handle cap and the pole body screw thread looks adaptation, be fixed with the protruding locked groove of same pole head on the bottom surface of rotating handle, the protruding locked groove of pole head on the rotating handle can be dismantled with the concave locked groove of pole head on the interior transfer line top surface and be connected, outer transfer pole can be dismantled with rotating handle cap and be connected, the wide internal thread of rotating handle cap and the transfer line external.
Preferably, the screw threads of the rod body on the inner rod, the inner transmission rod and the rotating handle are distributed in the whole length, the length of the inner rod and the length of the outer rod are both 30cm, the diameter of the inner rod is 2cm, and the inner diameter of the outer rod is matched with the diameter of the inner rod.
Preferably, the length of the inner transmission rod is 28cm, the diameter of the inner transmission rod is 2cm, the length of the outer transmission rod is 30cm, and the inner diameter of the outer transmission rod is matched with the diameter of the inner transmission rod.
Preferably, the length of the shaft of the rotating handle is 30cm, and the diameter of the shaft of the rotating handle is 2 cm.
A method for using a medium-shallow layer cutting ring continuous undisturbed sample soil sampler comprises the steps of firstly, adopting a Luoyang shovel to vertically drill a hole towards a target soil sampling position, drilling the hole to a specified position;
connecting the soil sampling mechanism, the extension mechanism and the rotating mechanism to form a complete device, and if one extension mechanism is not long enough and cannot reach a preset target soil sampling depth specified position, overlapping one extension mechanism so that the whole device can meet the soil sampling requirement of the preset depth specified position;
inserting the integrally assembled device into the drilled probing hole, enabling the lowest end of the outer cylinder to tightly prop against the bottom of the probing hole, holding the outer wall of the outer transmission rod by one hand, keeping the integrally assembled device vertical and stable, enabling the rotating handle to be slowly screwed into a rotating handle cap by the other hand, and driving the soil sampling cylinder to be downwards screwed through the transmission action of the inner transmission rod, so that the soil sampling cylinder enters a sampling target soil body;
step four, after the soil sampling cylinder is completely screwed into the target soil body, the rotating handle is reversely rotated to drive the outer transmission rod, so that the soil sampling cylinder at the lowermost end is driven to screw out the target soil body, meanwhile, the collected soil sample is taken out and then returned to the outer cylinder, and after the soil sampling cylinder is completely screwed back into the outer cylinder, the whole device is lifted out of the exploration hole
Step five, after the whole device is completely lifted, the soil sampling cylinder is disassembled, the soil sampling tool bit and the soil sampler base on the soil sampling cylinder are all disassembled, at the moment, only the cylinder wall formed by two metal thin walls is left on the soil sampling cylinder, and the metal thin walls are opened, so that the soil column spliced by a plurality of standard cutting rings can be obtained;
and step six, cutting and separating the soil samples along the standard cutting ring interface by using a cutter to obtain a plurality of standard cutting ring soil samples, wherein the samples collected by the cutting rings are continuous in the depth of the soil layer.
The invention discloses the following technical effects: the utility model provides a well shallow cutting ring original state soil geotome of using with luoyang shovel cooperation, conveniently carry, easy and simple to handle, this geotome is when using with luoyang shovel cooperation, not only can better overcome luoyang shovel and get the relatively poor problem of core integrality, can also reduce the coring cost of well shallow ground body, the coring efficiency and the integrality of the shallow ground body in improving, can realize a section of thick bamboo various simultaneously, the practicality has stronger, and the sample of collection is continuous on the soil layer degree of depth, be convenient for deep research in the vertical direction dimension.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic structural view of the soil-taking mechanism of the present invention;
FIG. 2 is a schematic view of the extension mechanism of the present invention;
FIG. 3 is a schematic structural view of a rotating mechanism according to the present invention;
FIG. 4 is a schematic structural view of a soil sampling barrel base, a soil sampling barrel, a soil sampling cutter head and a cutting ring according to the present invention;
FIG. 5 is a top view of the soil barrel of the present invention;
FIG. 6 is a schematic structural view of a shallow cutting ring continuous undisturbed sample sampler in accordance with the present invention;
FIG. 7 is an enlarged view of a portion A of FIG. 1;
FIG. 8 is a partial enlarged view of portion B of FIG. 2;
FIG. 9 is an enlarged view of a portion C of FIG. 2;
FIG. 10 is an enlarged view of a portion D of FIG. 3;
FIG. 11 is an enlarged view of a portion E of FIG. 6;
FIG. 12 is an enlarged view of a portion F of FIG. 6;
wherein, 1 is an outer rod, 2 is an inner rod, 3 is a soil sampling barrel base, 4 is an outer rod internal thread, 5 is an outer barrel wall, 6 is a soil sampling barrel, 7 is a soil sampling cutter head, 8 is a ring cutter, 9 is an outer rod external thread, 10 is a rod head concave lock groove, 11 is a rod body thread, 12 is an inner transmission rod, 13 is an outer transmission rod, 14 is a transmission rod external thread, 15 is a rod head convex lock groove, 16 is a transmission rod internal thread, 17 is a rotating handle, 18 is a rotating handle cap wide internal thread, 19 is a rotating handle cap, and 20 is a rotating handle cap narrow internal thread.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Referring to fig. 1-12, the invention provides a medium-shallow layer cutting ring continuous undisturbed sample soil sampler, which comprises a soil sampling mechanism, wherein the soil sampling mechanism comprises an inner rod 2 and an outer rod 1, the outer rod 1 is of a hollow rod-shaped structure, the inner rod 2 is in threaded connection with the inner rod 1, the inner wall of the bottom end of the outer rod 1 is provided with an outer rod internal thread 4, the outer rod internal thread 4 is arranged at the joint of the outer cylinder 5 and the outer rod 1, the inner rod 2 is provided with a rod body thread 11, the outer rod internal thread 4 is matched with the rod body thread 11, the top surface of the inner rod 2 is provided with a rod head concave lock groove 10, the outer wall of the top end of the outer rod 1 is provided with an outer rod external thread 9, one end of the inner rod 2 extends out of the outer rod 1 and is detachably connected with a soil sampling cylinder base 3, the bottom end of the soil sampling cylinder base 3 is detachably connected with a soil sampling cylinder 6, and the, the soil sampling cylinder is of a cylindrical structure after splicing, the bottom end of the soil sampling cylinder 6 is detachably connected with a soil sampling cutter head 7, the soil sampling cylinder 6 and the soil sampling cutter head 7 are sequentially connected through threads on the inner wall and the outer wall to form a complete soil sampling cylinder cutter, small holes (not shown) are uniformly distributed on the soil sampling cylinder base 3, soil sampling and air exhaust are facilitated, the inner diameter of the outer cylinder 5 is matched with the outer diameter of the soil sampling cutter head 7, and the outer cylinder 5 is sleeved outside the soil sampling cutter head 7; the soil sampling device is characterized in that a plurality of cutting rings 8 are fixed on the inner wall of the soil sampling cylinder 6, the cutting rings 8 are wound on the inner wall of the soil sampling cylinder 6 in a threaded manner, an outer cylinder 5 is arranged outside the soil sampling cylinder 6, the soil sampling cylinder 6 is sleeved in the outer cylinder 5, the outer cylinder 5 is fixed on the bottom surface of an outer rod 1, the outer cylinder 5 and the outer rod 1 are of an integral structure, the other end of the inner rod 2 is detachably connected with an extension mechanism, the extension mechanism comprises an outer transmission rod 13 and an inner transmission rod 12, the outer transmission rod 13 is of a hollow rod-shaped structure, the inner transmission rod 12 is detachably connected with the inner rod 2, a transmission rod internal thread 16 is arranged on the inner wall of the bottom end of the outer transmission rod 13, the transmission rod internal thread 16 is arranged at the joint of the inner rod 2 and the inner transmission rod 12, the same rod body thread 11 is arranged on the inner transmission rod 12, the utility model discloses a golf club head, including interior transfer line 12, the protruding locked groove 15 of head has been seted up on the bottom surface of interior transfer line 12, the protruding locked groove 15 of head and the concave locked groove 10 of head can be dismantled and be connected, the concave locked groove 10 of head and the protruding locked groove 15 looks adaptation of head, the protruding locked groove 15 of head can block in the concave locked groove 10 of head makes can the chucking between interior transfer line 2 and interior transfer line 12 or the interior transfer line 12, and the syntropy is rotatory, set up same concave locked groove 10 of head on the top surface of interior transfer line 12, outer transfer line 13 can be dismantled the connection in the top of outer pole 1, the transfer line external screw thread 14 has been seted up on the outer wall on outer transfer line 13 top, the top of extension mechanism can be dismantled and be connected with rotating mechanism, rotating mechanism includes rotating handle 17, same pole body screw thread 11 has been seted up on rotating, the upper portion of the rotating handle cap 19 is a narrow portion, the lower portion is a wide portion, the narrow portion of the rotating handle cap 19 is provided with a narrow internal screw thread 20 of the rotating handle cap, the wide portion of the rotating handle cap 19 is provided with a wide internal screw thread 18 of the rotating handle cap, the narrow internal screw thread 20 of the rotating handle cap is matched with the screw thread 11 of the rod body, the bottom surface of the rotating handle 17 is fixed with a same convex locking groove 15 of the rod head, the convex locking groove 15 of the rod head on the rotating handle 17 is detachably connected with the concave locking groove 10 of the rod head on the top surface of the inner transmission rod 12, the outer transmission rod 13 is detachably connected with the rotating handle cap 19, and the wide internal screw thread 18 of the rotating handle cap is matched.
The outer rod 1 is connected with the outer transmission rod 13 through an outer rod external thread 9 and a transmission rod internal thread 16, the inner rod 2 is in locking connection with the inner transmission rod 12 through a rod head concave locking groove 10 and a rod head convex locking groove 15, the transmission rod external thread 14 and the transmission rod internal thread 16 of the outer transmission rod 13 are connected with the next outer transmission rod 13, the inner transmission rod 12 is in locking connection with the next inner transmission rod 12 through the rod head concave locking groove 10 and the rod head convex locking groove 15, the number of the transmission rods is freely selected according to the soil sampling depth, the transmission rod external thread 14 at the top end of the outer transmission rod 13 is matched with the rotating handle cap wide internal thread 18, the outer transmission rod 13 is connected with the rotating handle cap 19, and the inner transmission rod 12 and the rotating handle 17 are in locking connection through the rod head concave locking groove 10 and the. The two processes of forward rotation and reverse rotation can drive the rod piece to be pushed downwards into a target soil body, the inner rod 2 can be pushed upwards to return due to reverse rotation of the threads during reverse rotation, an upward force can be given to the rod piece to push against the lock catch of the upper inner rod 2 to keep clamping, a small gap can exist between the two inner rods, and the phenomenon of falling cannot occur.
Further optimization scheme, the pole body screw thread 11 on interior pole 2, interior transfer line 12, the rotating handle 17 leads to long the distribution, interior pole 2 is 30cm with the length of outer pole 1, the diameter of interior pole 2 is 2cm, the internal diameter of outer pole 1 and the diameter looks adaptation of interior pole 2, the length of interior transfer line 12 is 28cm, the diameter of interior transfer line 12 is 2cm, the length of outer transfer line 13 is 30cm, the internal diameter of outer transfer line 13 and the diameter looks adaptation of interior transfer line 12, the pole body length of rotating handle 17 is 30cm, the diameter of rotating handle 17 pole body is 2 cm.
The soil sampler of the invention is used for sampling soil samples with the depth of less than 1m and comprises the following five operation steps.
In the first step, a Luoyang shovel (not shown) is used for vertically digging a target soil taking position, a detection hole is drilled, and the detection hole is drilled to a position of 1 m. And secondly, connecting the soil taking mechanism, the extension mechanism and the rotating handle to form a complete device, and if one extension mechanism is not long enough and cannot reach the preset target soil taking depth of 1m, overlapping one extension mechanism so that the whole device can meet the soil taking requirement of the preset depth of 1 m. Thirdly, the integrally assembled device is inserted into the drilled hole, so that the lowest end of the outer cylinder 5 tightly props against the bottom of the hole of the drilled hole. One hand holds the outer wall of the outer transmission rod 13 to keep the soil sampler vertical and stable. The other hand rotates the handle 17 to slowly screw the handle 17 into the handle cap 19, and the soil sampling tube 6 is driven to screw downwards by the transmission action of the inner transmission rod 12, so that the soil sampling tube 6 enters the soil body of the sampling target. Fourthly, after all the soil sampling cylinders 6 are screwed into the target soil body, the rotating handle 17 is rotated reversely to drive the outer transmission rod 13, so that the soil sampling cylinder 6 at the lowest end is driven to be screwed out of the target soil body, and meanwhile, the collected soil sample is taken out and returned to the outer cylinder 5. At the moment, the outer cylinder wall 5 plays a role in protecting the collected undisturbed soil sample; after the soil sampling cylinder 6 is completely screwed back into the outer cylinder 5, the whole device is lifted out of the manhole. And fifthly, after the soil sampler is completely lifted, disassembling the soil sampling barrel 6, disassembling the soil sampling cutter head 7 and the soil sampler base 3 on the soil sampling barrel 6, and only two barrel walls formed by metal thin walls are left on the soil sampling barrel 6. And opening the metal thin wall to obtain the soil column spliced by a plurality of standard cutting rings 8. Finally, a cutter (not shown in the figure) is used for cutting and separating along the interface of the standard cutting ring 8, so that a plurality of soil samples of the standard cutting ring 8 can be obtained, and the samples collected by the cutting ring 8 are continuous in the depth of the soil layer.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and 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.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.

Claims (8)

1. The utility model provides a continuous undisturbed sample geotome of well shallow layer cutting ring which characterized in that: comprises a soil taking mechanism, the soil taking mechanism comprises an inner rod (2) and an outer rod (1), the outer rod (1) is of a hollow rod-shaped structure, the inner rod (2) is in threaded connection with the outer rod (1), one end of the inner rod (2) extends out of the outer rod (1) and is detachably connected with a soil taking barrel base (3), the bottom end of the soil taking barrel base (3) is detachably connected with a soil taking barrel (6), the bottom end of the soil taking barrel (6) is detachably connected with a soil taking tool bit (7), a plurality of cutting rings (8) are fixed on the inner wall of the soil taking barrel (6), the cutting rings (8) are arranged in a winding manner, an outer barrel (5) is arranged outside the soil taking barrel (6), the soil taking barrel (6) is sleeved in the outer barrel (5), the outer barrel (5) is fixed on the bottom surface of the outer rod (1), the other end of the inner rod (2) is connected with a detachable extension mechanism, the top end of the extension mechanism is detachably connected with a rotating mechanism.
2. The continuous undisturbed sample geotome of the medium and shallow cutting ring of claim 1 further comprising: outer pole internal thread (4) have been seted up on the inner wall of outer pole (1) bottom, outer pole internal thread (4) are seted up the junction of urceolus (5) and outer pole (1), pole body screw thread (11) have been seted up on interior pole (2), outer pole internal thread (4) and pole body screw thread (11) looks adaptation, pole head concave locked groove (10) have been seted up on the top surface of interior pole (2), outer pole external screw thread (9) have been seted up on the outer wall on outer pole (1) top.
3. The continuous undisturbed sample geotome of the medium and shallow cutting ring of claim 2 further comprising: the extension mechanism comprises an outer transmission rod (13) and an inner transmission rod (12), the outer transmission rod (13) is of a hollow rod-shaped structure, the inner transmission rod (12) is detachably connected with the inner rod (2), a transmission rod internal thread (16) is arranged on the inner wall of the bottom end of the outer transmission rod (13), the transmission rod internal thread (16) is arranged at the joint of the inner rod (2) and the inner transmission rod (12), the inner transmission rod (12) is provided with the same rod body thread (11), the rod body thread (11) is matched with the transmission rod internal thread (16), the bottom surface of the inner transmission rod (12) is provided with a rod head convex lock groove (15), the rod head convex lock groove (15) is detachably connected with the rod head concave lock groove (10), the top surface of the inner transmission rod (12) is provided with the same rod head concave lock groove (10), the outer transmission rod (13) is detachably connected with the top end of the outer rod (1), and the outer wall of the top end of the outer transmission rod (13) is provided with a transmission rod external thread (14).
4. The continuous undisturbed sample geotome of the medium and shallow cutting ring of claim 3 further comprising: the rotating mechanism comprises a rotating handle (17), the same shaft body thread (11) is arranged on the shaft body of the rotating handle (17), the bottom end thread of the rotating handle (17) is connected with a rotating handle cap (19), the upper part of the rotating handle cap (19) is a narrow part, the lower part of the rotating handle cap is a wide part, the narrow part of the rotating handle cap (19) is provided with a narrow rotating handle cap internal thread (20), the wide part of the rotating handle cap (19) is provided with a wide rotating handle cap internal thread (18), the narrow rotating handle cap internal thread (20) is matched with the shaft body thread (11), the bottom surface of the rotating handle (17) is fixed with the same convex club head locking groove (15), the convex club head locking groove (15) on the rotating handle (17) is detachably connected with the concave club head locking groove (10) on the top surface of the inner transmission rod (12), the outer transmission rod (13) is detachably connected with the rotating handle cap (19), the wide internal thread (18) of the rotating handle cap is matched with the external thread (14) of the transmission rod on the external transmission rod (13).
5. The continuous undisturbed sample geotome of the medium and shallow cutting ring of claim 4 further comprising: the length of the rod body threads (11) on the inner rod (2), the inner transmission rod (12) and the rotating handle (17) is distributed in a whole length mode, the length of the inner rod (2) and the length of the outer rod (1) are both 30cm, the diameter of the inner rod (2) is 2cm, and the inner diameter of the outer rod (1) is matched with the diameter of the inner rod (2).
6. The continuous undisturbed sample geotome of the medium and shallow cutting ring of claim 5, wherein: the length of the inner transmission rod (12) is 28cm, the diameter of the inner transmission rod (12) is 2cm, the length of the outer transmission rod (13) is 30cm, and the inner diameter of the outer transmission rod (13) is matched with the diameter of the inner transmission rod (12).
7. The continuous undisturbed sample geotome of the medium and shallow cutting ring of claim 6 further comprising: the length of the rod body of the rotating handle (17) is 30cm, and the diameter of the rod body of the rotating handle (17) is 2 cm.
8. A use method of a continuous undisturbed sample geotome of a medium-shallow cutting ring is characterized by comprising the following steps:
firstly, adopting a Luoyang shovel to vertically drill towards a target soil taking position, drilling a probe hole, and drilling the probe hole to a specified position;
connecting the soil sampling mechanism, the extension mechanism and the rotating mechanism to form a complete device, and if one extension mechanism is not long enough and cannot reach a preset target soil sampling depth specified position, overlapping one extension mechanism so that the whole device can meet the soil sampling requirement of the preset depth specified position;
inserting the integrally assembled device into the drilled hole, enabling the lowest end of the outer cylinder (5) to tightly prop against the bottom of the hole, holding the outer wall of the outer transmission rod (13) by one hand, keeping the integrally assembled device vertical and stable, rotating the handle (17) by the other hand, slowly screwing the rotating handle (17) into the rotating handle cap (19), and driving the soil sampling cylinder (6) to be screwed downwards through the transmission action of the inner transmission rod (12), so that the soil sampling cylinder (6) enters a soil body of a sampling target;
fourthly, after the soil sampling cylinder (6) is completely screwed into the target soil body, the rotating handle (17) is reversely rotated to drive the outer transmission rod (13), so that the soil sampling cylinder (6) at the lowest end is driven to be screwed out of the target soil body, meanwhile, the collected soil sample is taken out and then returned to the outer cylinder (5), and after the soil sampling cylinder (6) is completely screwed into the outer cylinder (5), the whole device is lifted out of the exploration hole
Step five, after the whole device is completely lifted, the soil sampling cylinder (6) is disassembled, the soil sampling tool bit (7) and the soil sampler base (3) on the soil sampling cylinder (6) are all disassembled, at the moment, only the cylinder wall formed by two metal thin walls is left on the soil sampling cylinder (6), and the metal thin walls are opened, so that the soil column spliced by a plurality of standard cutting rings (8) can be obtained;
and step six, cutting and separating the soil samples along the interface of the standard cutting ring (8) by using a cutter to obtain a plurality of standard cutting ring (8) soil samples, wherein the samples collected by the cutting rings (8) are continuous in the depth of the soil layer.
CN202010237656.0A 2020-03-30 2020-03-30 Continuous undisturbed sample geotome of well shallow layer cutting ring Pending CN111220407A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112629925A (en) * 2021-01-15 2021-04-09 郑州金创工程设计有限公司 Engineering is with device of fetching earth fast
CN113089625A (en) * 2021-05-11 2021-07-09 机械工业勘察设计研究院有限公司 Soil sampling device and method for wet collapsible soil layer in arid region
CN113720636A (en) * 2021-08-23 2021-11-30 浙江华东建设工程有限公司 Portable pit-exploring thin-wall soil sampling device and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112629925A (en) * 2021-01-15 2021-04-09 郑州金创工程设计有限公司 Engineering is with device of fetching earth fast
CN113089625A (en) * 2021-05-11 2021-07-09 机械工业勘察设计研究院有限公司 Soil sampling device and method for wet collapsible soil layer in arid region
CN113720636A (en) * 2021-08-23 2021-11-30 浙江华东建设工程有限公司 Portable pit-exploring thin-wall soil sampling device and method

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