KR102142422B1 - Uncompacted hand-hammer subaerial piston core sampler and the method - Google Patents

Abstract

Disclosed is a non-consolidated piston pillar core sample manual collecting device which can be applied to most sedimentary layers in a coastal wetland and a river in an unconsolidated state, and can collect a sample of a sedimentary layer of an exposed wetland in large amounts without changing the shape. The non-consolidated piston pillar core sample manual collecting device of the present invention comprises: a tripod having a fixing ring; a core member inserted into a sedimentary layer to collect a sample; a catcher coupled to the outside of the core member to manually insert the core member into the sediment layer; a vacuum pressure maintaining member inserted into the core member to maintain a vacuum pressure inside the core member when the core member is inserted into the sediment layer; and a position fixing line coupled between the vacuum pressure maintaining member and the fixing ring to maintain a position of the vacuum pressure maintaining member.

Description

Uncompacted hand-hammer subaerial piston core sampler and the method}

The present invention relates to a non-consolidated piston columnar core sample manual extractor and method for collecting sediment samples from most sedimentary layers such as coastal wetlands and rivers in a non-consolidation state.

In general, sediment collectors collect columnar samples of sedimentary layers from exposed wetlands such as intertidal zones and ancestral zones.

The conventional sediment harvester using vibration is composed of a pulley assembly with a pipe, a catcher, a vibrator, a tripod, and a chain. To collect columnar samples from exposed wetland sedimentary layers, install a tripod at the sediment sample collection point, and then place a pipe perpendicular to the sediment surface. And when the vibration of the vibrator is applied to the pipe, the pipe is inserted into the sediment layer by the vibrator. And when collecting the sediment sample, a pulley assembly is used to remove the pipe from the sediment layer.

The sedimentary layer sample collected by the sediment collector using such vibrations inevitably causes a consolidation phenomenon in the upper layer of the collected sedimentary layer sample. Therefore, in the collected sedimentary layer sample, part of the sedimentary layer sample is disturbed based on the upper layer. Therefore, sediment samples obtained through a sediment collector using vibration have a weakness in precise research.

Meanwhile, the existing manual columnar sampler (eg, hand hammer core) consists of an aluminum pipe, a catcher, and a hammer. To collect columnar samples of sedimentary layers using such a manual collector, a pipe is placed vertically at the collection point of the sedimentary layer, and then the pipe is hit with a hammer and inserted into the sedimentary layer. And when collecting the sample, manually raising the pipe by turning the catcher in reverse.

Such a manual collector has a problem in that it is difficult to obtain a sediment layer sample for precise research because a consolidation phenomenon occurs in the upper layer of a sediment layer sample like a vibration collector when a pipe is driven with a hammer.

In particular, there is a problem in that a sample flows down from a sand layer in a conventional manual collector, and there is a void water, interlayer water, or air layer in a tidal flat layer, making it difficult to collect a complete sediment sample even after collection.

That is, the vibration collector and the manual sedimentary layer collector have a problem in that the thickness of the columnar sample of the sediment layer and the drilling depth are distorted due to the consolidation phenomenon occurring in the drilling process.

On the other hand, a commercially available hand core sediment sampler also makes it difficult to separate the air and sediment layer in the egg shell, and consolidation occurs in the upper layer of the sediment layer sample at a certain depth based on the upper layer portion of the sediment layer sample. The sedimentary layer sample is disturbed, and it is difficult to recover the sedimentary layer sample in the collected state. In addition, such a hand-core sediment sampler has a disadvantage in that the pipe diameter is small due to the characteristic of a structure that must be inserted into the sediment layer by manpower, so that sediment samples cannot be collected in a size necessary for sediment research purposes. In other words, the existing handcore sediment sampler has a limitation in collecting sediment columnar samples of sufficient size and depth necessary for research.

On the other hand, conventional devices for collecting sedimentary layers have a disadvantage in that they are heavy in weight. Conventional sediment collectors mainly collect samples of exposed wetland sedimentary layers such as intertidal zones and ancestral zones. In addition, in the case of manufacturing lightly with a small capacity, there is a problem in that it is difficult to collect a large-capacity sedimentary sample due to the limit of the pipe diameter.

Accordingly, the present invention has been proposed to solve the above problems, and an object of the present invention is to eliminate the consolidation phenomenon occurring in the upper layer of the sediment sample to be collected and prevent the upper layer of the sediment from being disturbed, so that in the process of precise research It is to provide a non-consolidated piston columnar core sample manual collector and a method that can reduce errors in analysis.

Another object of the present invention is to provide a non-consolidated piston columnar core sample manual extractor and a method capable of collecting and recovering a sample of a complete sediment layer from a sand layer or a tidal flat layer.

Another object of the present invention is a columnar core sample that can be easily moved by manpower while collecting large-capacity samples of tidal flats used in exposed wetlands and coasts such as tidal flats, salt marshes, lakes and rivers, etc. It is to provide a sampler and a manual extractor for a non-consolidated piston columnar core sample using the same and a method thereof.

In order to achieve the object of the present invention as described above, the present invention provides a tripod having a retaining ring, a core member inserted into a sedimentary layer to collect a sample, and the core member manually sedimentary layer by coupling to the outside of the core member. A catcher for insertion into the core member, a vacuum pressure holding member that is inserted into the core member to maintain the vacuum pressure inside the core member when the core member is inserted into the deposition layer, and between the vacuum pressure holding member and the fixing ring It provides a non-consolidated piston columnar core sample manual extractor comprising a position fixing line for maintaining the position of the vacuum pressure holding member by combining.

It is preferable that the tripod is provided with a pulley for recovering the core member.

It is preferable that the core member is made of a cylindrical aluminum material, and the upper and lower portions are penetrated.

The catcher is a semi-cylindrical first member, a second member paired with the first member to form a cylindrical shape, a hinge member for coupling the first member and the second member to each other, and the first member and the second member It may include a locking member installed and fixed to the core member, and a handle member installed on the first member and the second member.

It is preferable that the handle member further includes an extension member that extends horizontally in opposite directions and is fitted.

The vacuum pressure maintaining member preferably includes a cylindrical piston member, at least one sealing member disposed on an outer circumferential surface of the piston member, and a piston fixing ring member coupled to an upper end of the piston member.

It is preferable that the piston member has a fixing groove formed along the outer circumferential surface to which the sealing member is fixed.

The position fixing line is made of a chain or wire, and is preferably connected to the piston fixing ring member installed on the upper end of the piston member and the fixing member to the fixing ring of the tripod.

The fixing member may be a carabiner.

The tripod may include an upper plate portion, a first leg member hingedly coupled to the upper plate portion, and a plurality of second leg members extending in length by being fitted to the first leg member.

In the second leg member, a plate portion supporting the tidal flat layer may be coupled to the lower portion.

The present invention is a tripod having a retaining ring, a core member inserted into the sedimentary layer to collect a sample, a catcher fixed to the outside of the core member to manually insert the core member into the sedimentary layer, and inside the core member A vacuum pressure holding member that maintains a constant position when the core member is inserted into the deposition layer to maintain a vacuum pressure inside the core member, and the vacuum pressure is maintained by being coupled between the vacuum pressure holding member and the fixing ring In the method for collecting a non-consolidated piston columnar core sample comprising a position fixing line for maintaining the position of the member,

When manually inserting the core member into the sediment layer using the catcher, the position fixing line maintains a certain length in a state in which the fixing ring and the vacuum pressure maintaining member are connected. It provides a method of collecting a non-consolidated piston columnar core sample in which a sediment sample is collected while maintaining a vacuum pressure between a pneumatic holding member.

The present invention is a consolidation phenomenon occurring in the upper layer of the collected sediment sample by maintaining a perfect vacuum pressure on the upper side of the sediment layer sample when the core member is inserted into the exposed wetland to collect the columnar core sediment and the core member is removed. It is possible to collect sediment samples that reduce errors during analysis in the process of detailed research of sediments by eliminating the saturation and preventing the upper layer of sediment from being disturbed.

The present invention maintains a vacuum pressure inside the core member even after collecting the sedimentary columnar core sample by using a core member having a strong durability and a large diameter to prevent the sample from flowing down from the sand layer, and prevents the sample from flowing down in the tidal flat layer. Even in the presence of this, there is an effect of recovering a sample while the sedimentary layer is maintained without any change in shape.

The present invention reduces the weight while maintaining the diameter of the core member to the extent necessary for the purpose of research, and reduces the weight to easily equip it with manpower in exposed wetlands such as tidal flats, salt marshes, lakes and rivers, etc. It has the effect of being able to carry large volumes of sedimentary samples while being able to transport.

In addition, the present invention can be applied to most of the sedimentary layers such as dry pressure wetlands and rivers, and thus the range of use can be broadened.

1 is a view showing the overall shape of a columnar core sample collector to explain an embodiment of the present invention.
2 is a view showing a catcher unfolded to explain an embodiment of the present invention.
3 is a view showing a state in which a catcher is coupled to describe an embodiment of the present invention.
4 is a view showing a vacuum pressure holding member for explaining an embodiment of the present invention.
5 is a view for explaining a process of coupling a vacuum pressure holding member to the core member to use the columnar core sample collector of the embodiment of the present invention.
6 is a view showing a state immediately before inserting the core member of the columnar core sample collector of the embodiment of the present invention into the tidal flat layer.
7 is a view showing a state in which the core member of the columnar core sample collector of the embodiment of the present invention is partially inserted into the tidal flat layer.
8 is a view showing a state in which the core member of the columnar core sampler according to the embodiment of the present invention is sufficiently inserted into the tidal flat layer.
9 is a view showing a state in which the core member of the columnar core sampler according to the embodiment of the present invention is withdrawn.
10 is a view showing a state in which a sample of a sediment layer is collected to illustrate an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art to which the present invention pertains may easily practice. However, the present invention may be implemented in various different forms and is not limited to the embodiments described herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and the same reference numerals are assigned to the same or similar components throughout the specification.

1 is a perspective view for explaining an embodiment of the present invention, showing a non-consolidated piston columnar core sample manual extractor.

The non-consolidated piston columnar core sample manual extractor of the embodiment of the present invention includes a tripod (1), a core member (3), a catcher (5, Catcher), a vacuum pressure holding member (7), and a position fixing line (9). do.

The tripod (1) serves as a support to maintain the vacuum pressure holding member (7) in a certain position by supporting the ground of the tidal flat, and at the same time, it supports the tidal layer when pulling out the core member (3) embedded in the sediment layer. can do.

The tripod 1 may include an upper plate portion 11, a first leg member 13, 14, 15, a second leg member 16, 17, 18, and a plate portion 19, 20, 21. .

The upper plate 11 may be formed in an approximately circular plate shape. At least one fixing ring 23 may be coupled to the upper plate part 11.

Three first leg members 13, 14, and 15 may be disposed at intervals, respectively, and may be hinged to the upper plate 11. The first leg members 13, 14, 15 are hinged to the upper plate 11 so that they can be easily collected and folded. This structure can facilitate movement by manpower in the tidal flat. The first leg members 13, 14, 15 may be formed of a cylindrical pipe.

The second leg members 16, 17, and 18 may be inserted into the first leg members 13, 14, and 15, respectively, to extend the length of the leg. That is, the second leg members 16, 17, and 18 may have a diameter smaller than the inner diameter of the first leg members 13, 14, and 15, and can be inserted into the first leg members 13, 14 and 15. In other words, the first leg members 13, 14, 15 and the second leg members 16, 17, 18 are of a separate type, and can be easily separated from an area such as a tidal flat and moved by manpower.

The plate portions 19, 20, 21 may be coupled to the lower ends of the second leg members 16, 17, 18. These plate portions 19, 20, 21 serve to support the ground, which is the upper surface of the tidal flat layer, when the columnar core sample collector of the embodiment of the present invention is used on a soft ground such as a tidal flat.

Meanwhile, the fixing ring 23 serves to fix the position fixing line 9 with a fixing member 25 such as a carabiner. In addition, the fixing ring 23 can be used by hooking a pulley 10 (see Fig. 9) when pulling out the core member 3 embedded in the sediment layer.

The core member 3 is a structure inserted into the sedimentary layer to collect a large-capacity sample. The core member 3 serves to collect a sample of the sediment layer while collecting a large-capacity sample while being inserted into the sediment layer without deforming its shape, so that the sediment layer sample is stuck inside. It is preferable that the core member 3 has a cylindrical shape in which the upper and lower portions are penetrated. The core member 3 is durable, has a large diameter, and is made of a heat-treated reinforced aluminum material, so that it can be easily moved by manpower in a soft ground such as a tidal flat by reducing weight while maintaining rigidity. In addition, since the core member 3 is made of a heat-treated reinforced aluminum material and maintains sufficient rigidity, the diameter and length can be sufficiently increased. The core member 3 of the embodiment of the present invention can drill a sample of the sediment layer to a size and depth required for research purposes. In the embodiment of the present invention, the inner diameter of the core member 3 may be 100mm or more, and the length may be made large-capacity 2000mm or more.

The catcher 5, as shown in FIGS. 1 to 3, is a device that is coupled to the outside of the core member 3 to manually insert the core member 3 into the deposition layer. The catcher 5 may include a first member 51, a second member 53, a hinge member 55, a locking member 57, and a handle member 59.

The first member 51 has a certain length and may be formed in a semi-cylindrical shape. The second member 53 may have the same shape as the first member 51. That is, the first member 51 and the second member 53 may be formed in a semi-cylindrical shape to form a pair in the same shape to form a cylindrical shape. The first member 51 and the second member 53 are coupled to each other to the hinge member 55. Accordingly, the first member 51 and the second member 53 may be coupled to each other by the hinge member 55 to have a cylindrical shape, and the opposite side of the hinge member 55 may be opened to open each other.

The locking member 57 is installed on the first member 51 and the second member 53. The locking member 57 serves to couple and fix the catcher 5 to the outer peripheral surface of the core member 3. Such locking member 57, for example, by making a locking ring (51a) on the first member (51), a locking projection (53a) on the second member (53), the first member 51 and the second member (53) can be fixed to each other. Any such locking member 57 may be used as long as it is capable of fixing the catcher 5 to the outer circumference of the core member 3 while coupling the first member 51 and the second member 53 to each other.

The handle member 59 may be fixed to the first member 51 and the second member 53 in a straight line, respectively. That is, the handle member 59 may be horizontally installed on the first member 51 and the second member 53 in opposite directions, and may be formed of a hollow pipe. Meanwhile, an extension member 61 is inserted into the handle member 59 so as to extend horizontally in opposite directions. That is, the handle member 59 and the extension member 61 are formed of a separate type, so that they can be easily moved by manpower in the tidal flat. In addition, the extension member 61 may facilitate the operation of manually inserting the core member 3 into the sediment layer by extending the handle member 59. When the catcher 5 is fixed to the outer circumferential surface of the core member 3, it is preferable that an anti-slip member 62 for preventing slipping is fitted between the core member 3 and the catcher 5.

The vacuum pressure maintaining member 7 is inserted into the core member 3 and serves to maintain a certain position when the core member 3 is inserted into the deposition layer. The vacuum pressure maintaining member 7 serves to maintain a perfect vacuum pressure within the core member 3 between the lower portion of the vacuum pressure maintaining member 7 and the upper portion of the deposition layer or within the core member 3.

The vacuum pressure maintaining member 7 may include a piston member 71, a sealing member 73 and 75, and a piston fixing ring member 77, as shown in FIGS. 4 and 5.

The piston member 71 may be made of a synthetic resin material, and has a cylindrical shape. The piston member 71 may be formed with a fixing groove (not shown) to which the sealing members 73 and 75 are fixed along the outer circumferential surface. The sealing members 73 and 75 may be installed in plural by maintaining an interval. These sealing members 73 and 75 serve to maintain a vacuum pressure inside the core member 3 or between the piston member 71 and the inner diameter of the core member 3. The piston fixing ring member 77 is preferably coupled to the upper end of the piston member 71 (a portion in the direction toward the upper plate 11 of the tripod 1 while being fitted to the core member 3). In the piston fixing ring member 77, one end of the position fixing line 9 may be fixed with another fixing member such as a carabiner.

The position fixing line 9 may be made of a chain or wire (see FIGS. 1 and 5).

One end of the position fixing line 9 is fixed to the piston fixing ring member 77 of the vacuum pressure maintaining member 7, and another part of the position fixing line 9 may be fixed to the fixing ring 23 of the tripod 1 described above. When the core member 3 is inserted into the sedimentary layer, the length of the position fixing line 9 (L, see Fig. 6) is fixed to keep the vacuum pressure maintaining member 7 in a certain position. It plays a role in making it possible. Of course, at this time, the core member 3 may be inserted into the deposition layer while moving relative to the vacuum pressure maintaining member 7. The position fixing line 9 fixes the position of the vacuum pressure holding member 7 to maintain a constant vacuum pressure and a completely changed vacuum pressure inside the core member 3.

The method and process of collecting a columnar core sample using the columnar core sample collector of the embodiment of the present invention made as described above will be described in detail as follows.

First, the operator moves to the tidal flat where the sample is to be collected in a state where the first leg members 13, 14, 15 and the second leg members 16, 17, 18 of the tripod 1 are disassembled.

Then, the first leg members 13, 14, 15 and the second leg members 16, 17, 18 of the tripod 1 are assembled. Then, the vacuum pressure holding member 7 is inserted into the core member 3. At this time, since the core member 3 is formed in a penetrating shape, a portion of the piston fixing ring member 77 of the vacuum pressure maintaining member 7 is disposed at the upper end (in the opposite direction of the tidal flat layer). Then, one end of the position fixing line 9 is fixed to the piston fixing ring member 77 with a separate fixing member. Then, one end or the middle portion of the position fixing line 9 is fixed to the fixing ring 23 of the tripod 1 using the fixing member 25 described above. Then, as shown in Fig. 6, the position fixing line 9 is in a state where the length L is maintained. That is, even if the core member 3 is inserted into the sediment layer, the length L of the position fixing line 9 can be maintained as it is.

Subsequently, the operator fixes the catcher 5 to the outer peripheral surface of the core member 3. At this time, it is preferable to insert the non-slip member 62 between the outer peripheral surface of the core member 3 and the inner surface of the first member 51 and the second member 53 of the catcher 5. The non-slip member 62 can maintain a fixed state without sliding the core member 3 and the catcher 5 to each other.

In some cases, after first performing the work of fixing the catcher 5 to the outer circumferential surface of the core member 3, the position fixing line 9 is attached to the vacuum pressure holding member 7 and the fixing ring 23 of the upper plate 11 It is also possible to fix it on.

And the operator uses the locking member 57 of the catcher 5 to firmly fix the core member 3. That is, the first member 51 and the second member 53 are firmly fixed by fitting the locking ring 51a of the locking member 57 into the locking projection 53a. And then the operator inserts the extension member 61 into the handle member 59 of the catcher (5). This can facilitate the operation of inserting the core member 3 into the tidal flat layer, and as described above, it is possible to facilitate the movement of the device in a separate type.

Subsequently, the operator holds the handle member 59 of the catcher 5 or the extension member 61 fitted in the handle member 59 with his hand and pushes the core member 3 toward the lower part of the sediment layer (Fig. 6). Arrow direction). At this time, the plate portions 19, 20, 21 of the tripod 1 support the upper portion of the tidal flat. Then, the core member 3 moves in a direction in which the core member 3 is inserted into the deposit layer (in the direction of the arrow in Fig. 6). At this time, the vacuum pressure holding member 7 maintains the vacuum pressure inside the core member 3 while still maintaining a predetermined length L in the position fixing line 9.

Through this process, while the vacuum pressure is maintained inside the core member 3, that is, between the vacuum pressure maintaining member 7 and the deposited layer sample, the unconsolidated state can be continuously maintained.

The operator sufficiently inserts the core member 3 into the sediment layer in order to collect a sample of the sediment layer at a desired level. When the operator inserts the core member 3 into the sediment layer to the desired extent, the position fixing line 9 is separated from the fixing ring 23 of the tripod 1.

Then, connect the pulley (10) to the fixing ring (23) of the tripod (1), insert another string (83), such as a chain, to the pulley (10), and catch one side of the string (83) like this chain again. It is fixed to the handle member 59 of (5) (see Fig. 9). And when pulling the string 83, such as a chain, by the action of the pulley 10, the core member 3 moves upward while the sedimentary layer sample is embedded therein.

Even at this time, since the vacuum pressure maintaining member 7 is still fixed inside the core member 3, a constant vacuum pressure is maintained between the vacuum pressure maintaining member 7 and the top of the deposition layer inside the core member 3.

Subsequently, the operator separates the position fixing line 9 from the piston fixing ring member 77 and blocks both ends of the core member 3 with protective covers 79 and 81, and moves to the laboratory. In this process, since the inside of the core member 3 is still maintaining the vacuum pressure, there is no distortion as in the case of collecting the sediment layer sample.

The present invention can minimize the distortion of the thickness and depth of the sample due to the consolidation phenomenon that occurs when collecting the drilling core sample of the exposed wetland sediment layer. That is, the present invention prevents consolidation when a columnar sample is obtained in an exposed wetland such as an intertidal zone or an ancestral zone, thereby preventing distortion of the thickness and drilling depth of the columnar sample.

In addition, according to the present invention, it is very easy to collect a sedimentary layer of 60 cm or more, and disturbance of the sample can be prevented even when the columnar sample embedded in the sedimentary layer is recovered.

Further, according to the use result of the present invention, a columnar sample having a drilling depth of more than 200 cm can be obtained without almost any disturbance of the sample due to the consolidation phenomenon or distortion of the sample thickness.

In addition, the present invention can take a sample of a sediment layer having a sufficient diameter.

Although the preferred embodiments of the present invention have been described through the above, the present invention is not limited thereto, and it is possible to carry out various modifications within the scope of the claims and detailed description of the invention and the accompanying drawings. Naturally, it is within the scope of the invention.

1. tripod, 3. core member,
5. Catcher, 7. Vacuum pressure holding member,
9. Position fixing line, 11. Top plate,
13, 14, 15. First leg member, 16, 17, 18. Second leg member,
19, 20, 21. Plate portion,
23. fixing ring, 25. fixing member,
51. First member, 51a. Hook,
53. Second member, 53a. Jaw,
55. hinge member, 57. locking member,
59. Handle member, 61. Extension member,
71. Piston member, 73, 75. Sealing member,
77. Piston retaining ring member, 79, 81. Protective cover,
83. Joule

Claims (12)

Tripod with retaining ring,
A cylindrical core member inserted into the sedimentary layer and penetrated to collect samples,
A catcher for manually inserting the core member into the sediment layer by being coupled to the outside of the core member,
A vacuum pressure holding member inserted into the core member to maintain a vacuum pressure inside the core member when the core member is inserted into the deposition layer, and
Position fixing line that is coupled between the vacuum pressure maintaining member and the fixing ring to maintain the position of the vacuum pressure maintaining member
It includes,
The tripod is
Top,
A first leg member hinged to each of three to the upper plate,
A plurality of second leg members that are fitted to the first leg member and extend in length,
It includes a plate portion independently coupled to the lower end of the second leg member to support the tidal flat layer,
The above catcher
When viewed in the longitudinal direction of the core member, it is formed in a shape penetrating in the longitudinal direction and is coupled to the middle portion of the outer peripheral surface of the core member,
A semi-cylindrical first member,
A second member that is paired with the first member to form a cylindrical shape,
A hinge member coupling the first member and the second member to each other,
A locking member installed on the first member and the second member and fixed to the core member, and
A handle member installed on the first member and the second member
Including,
A non-consolidation piston columnar core sample manual collecting machine which is disposed between the core member and the catcher and is equipped with a non-slip member that maintains frictional force between the core member and the catcher to maintain a fixed state when the catcher is manually pressed . The method according to claim 1,
The tripod is
A non-consolidated piston columnar core sample manual collecting machine provided with a pulley for recovering the core member. The method according to claim 1,
The core member
A non-consolidated piston columnar core sample manual collector made of a cylindrical aluminum material and through the top and bottom. delete The method according to claim 1,
The handle member
A non-consolidated piston columnar core sample manual extractor further comprising an extension member that extends horizontally in opposite directions and is fitted. The method according to claim 1,
The vacuum pressure maintaining member
Cylindrical piston member,
At least one sealing member disposed on the outer circumferential surface of the piston member,
Piston fixing ring member coupled to the upper end of the piston member
Non-condensing piston columnar core sample manual collecting device comprising a. The method according to claim 6,
The piston member
A non-consolidated piston columnar core sample manual collecting device having a fixing groove to which the sealing member is fixed along an outer circumferential surface. The method according to claim 1,
The position fixing line is
It is made of chains or wires,
A non-consolidated piston columnar core sample manual extractor in which a lower end is connected to a piston fixing ring member installed on an upper end of the piston member, and an intermediate part is connected to the fixing ring of the tripod by a fixing member. The method according to claim 8,
The fixing member
Carabiner, non-consolidated piston columnar core sample manual collector. delete delete Tripod with retaining ring,
A cylindrical core member inserted into the sedimentary layer and penetrated to collect samples,
A catcher fixed to the outside of the core member to manually insert the core member into the sediment layer,
A vacuum pressure holding member inserted into the core member to maintain a vacuum pressure inside the core member when the core member is inserted into the deposition layer, and
Position fixing line that is coupled between the vacuum pressure maintaining member and the fixing ring to maintain the position of the vacuum pressure maintaining member
It includes,
The tripod is
Top,
A first leg member hinged to each of three to the upper plate,
A plurality of second leg members that are fitted to the first leg member and extend in length,
It includes a plate portion independently coupled to the lower end of the second leg member to support the tidal flat layer,
The above catcher
When viewed in the longitudinal direction of the core member, it is formed in a shape penetrating in the longitudinal direction and is coupled to the middle portion of the outer peripheral surface of the core member,
A semi-cylindrical first member,
A second member that is paired with the first member to form a cylindrical shape,
A hinge member coupling the first member and the second member to each other,
A locking member installed on the first member and the second member and fixed to the core member, and
A handle member installed on the first member and the second member
Including,
A columnar core using a columnar core sampler disposed between the core member and the catcher and provided with an anti-slip member for maintaining a fixed state by maintaining frictional force between the core member and the catcher when the catcher is manually pressed In the sampling method,
When manually inserting the core member into the sediment layer using the catcher,
The position fixing line is
A non-consolidated piston columnar core that collects sediment samples while maintaining a constant length while the fixing ring and the vacuum pressure maintaining member are connected to maintain a vacuum pressure between the upper part of the sediment layer and the vacuum pressure maintaining member inside the core member Sample collection method.

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