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WO2018155749A1 - Pénétromètre à cône du type à chute libre comprenant un fût variable - Google Patents

Pénétromètre à cône du type à chute libre comprenant un fût variable Download PDF

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Publication number
WO2018155749A1
WO2018155749A1 PCT/KR2017/002149 KR2017002149W WO2018155749A1 WO 2018155749 A1 WO2018155749 A1 WO 2018155749A1 KR 2017002149 W KR2017002149 W KR 2017002149W WO 2018155749 A1 WO2018155749 A1 WO 2018155749A1
Authority
WO
WIPO (PCT)
Prior art keywords
strut
cone
seabed
thickness
module
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2017/002149
Other languages
English (en)
Korean (ko)
Inventor
김지훈
권오순
신창주
강현
서정민
박혜주
정무혜
백원대
최재호
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Korea Institute of Ocean Science and Technology KIOST
Original Assignee
Korea Institute of Ocean Science and Technology KIOST
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Korea Institute of Ocean Science and Technology KIOST filed Critical Korea Institute of Ocean Science and Technology KIOST
Priority to PCT/KR2017/002149 priority Critical patent/WO2018155749A1/fr
Publication of WO2018155749A1 publication Critical patent/WO2018155749A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
    • G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
    • G01N3/303—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated only by free-falling weight
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/24—Earth materials

Definitions

  • the present invention relates to a cone injector for acquiring ground information, and more particularly, to a free-falling cone injector configured to be used by changing the thickness and length of a strut part according to the type of ground.
  • Subsea soils have a variety of environments. Some subsurfaces are very soft, but for others it can be very hard. In addition, some seabeds may be introduced into the soil, which may change the degree of solidity.
  • Conventional cone intruder has a configuration that does not take into account that the different degree of softness of the seabed ground, there is a limit to perform the cone penetration test in an optimal state according to the type of seabed ground.
  • the present invention was developed to overcome the limitations of the prior art as described above, and the strut portion existing between the sensor portion and the payload portion of the cone intruder can be modified to fit the degree of softening of the seabed. It is an object to provide a cone injector having a configuration.
  • the bottom is provided with a sensor unit with a sensor built-in, Has a payload section for receiving and recording signals, and a strut section is formed between the sensor section and the payload section;
  • the strut portion has a structure in which a plurality of strut modules are continuously arranged and assembled in a disassembled state;
  • a cone intruder is provided, which can be formed by replacing the strut part with a strut module having a thickness and vertical length promoted in accordance with the softness of the sea bed to be inserted.
  • the plurality of strut modules constituting the strut portion has a shape in which the thickness becomes smaller and the vertical length becomes longer as it goes to the end in the seabed ground direction, so that the strut goes to the end in the seabed ground direction.
  • the thickness of the part becomes smaller step by step;
  • a connection adapter may be provided at a position where the thickness and vertical length of the strut module are changed.
  • the strut portion is formed by assembling a plurality of strut modules, the thickness and length of the strut portion can be made to the optimum state according to the softness of the seabed to be inserted, accordingly, It is possible to minimize the risk of buckling and breaking of the cone intruder during penetration into the seabed, and to effectively inject the cone intruder into the seabed to the desired depth, thereby providing more rich and useful seabed information. It has the advantage of being able to be acquired.
  • FIG. 1 is a schematic side view showing a cone intruder according to the present invention.
  • FIGS. 2 to 4 are schematic side views showing various embodiments of cone injectors, respectively, according to the present invention.
  • FIG. 5 is a schematic side view showing the cone intruder in an exploded state according to the present invention.
  • Figure 1 is a schematic side view showing a cone injector according to the present invention
  • the cone injector 100 according to the present invention is a sensor unit 1, payload (2) and a strut (strut) It consists of a part (3).
  • the sensor unit 1 is provided at one end of the cone intruder 100
  • the payload unit 2 is provided at the other end of the cone intruder 100
  • the strut part 3 is provided at the sensor unit 1.
  • the cone injector 100 is freely dropped in a state in which the sensor unit 1 is below and the payload unit 2 is positioned vertically so as to penetrate into the seabed. Information).
  • the sensor unit 1 is a member having a conical shape with a sharp point in the direction toward the sea bed, and various sensors are embedded therein.
  • the payload unit 2 is a member that receives and records signals from the sensors embedded in the sensor unit 1, and a power source (battery) may be embedded therein as necessary.
  • the strut portion 3 is a portion connecting the sensor portion 1 and the payload portion 2 to each other.
  • the seabed ground to which the cone intruder 100 is to be penetrated may vary depending on the test location. In order to enable the cone intruder 100 to effectively penetrate into the seabed ground, according to the softness of the seabed ground, It is preferable to change the thickness (thickness) and the vertical length of the strut portion. In order to acquire information up to the depth of the seabed, it is preferable that the sensor part 1 is deeply penetrated into the seabed.
  • the length of the strut portion 3 is preferably long. On the other hand, the longer the vertical length of the strut portion 3, the greater the risk that deformation such as buckling, fracture, etc. occurs in the process of injecting the cone injector 100 into the seabed.
  • FIG. 2 to 4 show a schematic shape of the cone indenter 100 according to the present invention, in which the thickness and the vertical length of the strut portion are respectively changed according to the softness of the sea bed.
  • FIG. 2 is a cone injector 100 suitable when the sea bed is soft
  • FIG. 3 is a cone intruder 100 suitable when the sea bed is hard
  • FIG. 4 is a combination of those shown in FIGS. It is the cone injector 100 of a structure.
  • the cone injector 100 can easily penetrate the sea bed and there is less possibility of deformation such as buckling, so that the strut portion 3 is as long as necessary in the vertical direction as shown in FIG. It may have a relatively small thickness.
  • the thickness of the sturt portion 3 may be configured to gradually decrease in steps (stepwise) while going vertically downward.
  • Cone injector 100 as shown in Figures 2 to 4 above, has a structure in which the strut portion 3 can change the thickness and vertical length in accordance with the softness of the seabed ground. .
  • the strut part 3 consists of the assembly of a plurality of strut modules in the vertical direction. That is, the strut part 3 is formed by assembling the plurality of strut modules 30 in a state that can be disassembled with each other.
  • the uppermost strut module and the lowermost strut module located on the vertical and vertical sides of the strut part 3 are assembled with the payload part 2 and the sensor part 1 in a state where they can be disassembled.
  • the strut module 30 is composed of a pipe-like shell cell 31, and both ends in the longitudinal direction of the shell shell 31 have a configuration in which they are assembled by screwing with neighboring strut modules.
  • the upper end of the outer shell cell 31 is thus inserted into the outer shell of the strut module located above and screwed together, and the lower end of the outer shell cell 31 is positioned below the shell.
  • the outer shell of the strut module is inserted and screwed in.
  • the upper end of the outer shell 31 is formed with a threaded portion on its inner surface, and the threaded portion may be formed on the outer surface of the lower end.
  • the strut module 30 is screwed with a neighboring strut module, so that the strut module 3 is assembled to be disassembled with each other.
  • the strut module 30 is disposed between the sensor unit 1 and the payload unit 2, for smooth connection of various signal lines, power lines, etc., between the sensor unit 1 and the payload unit 2,
  • the inside of the strut module 30 may be provided with a slip ring for preventing the twisting of various lines (signal lines, power lines, etc.) despite the rotation of the strut module 30.
  • the screw coupling described above can also be used for assembling the upper strut module with the payload portion 2, and the screw coupling can also be used for assembling the lower strut module with the sensor portion 1 in a disassembled state. Can be.
  • the cone injector 100 has a configuration in which the plurality of strut modules 30 are assembled with each other in the vertical direction to form the strut portion 3. Since there is less risk of buckling or breaking when penetrating the seabed, as shown in FIG. 2, the strut portion 3 having a long vertical length as a whole using a plurality of strut modules 30 having a relatively thin thickness and a long vertical length To configure the cone injector 100 to have it can be used for seabed ground exploration in the field.
  • a plurality of strut modules 30 having a thick thickness and a relatively short vertical length are assembled to the strut.
  • the part 3 is formed, and the payload part 2 and the sensor part 1 are assembled to the upper and lower ends of the strut part 3, respectively, and can be used for seabed ground exploration.
  • the strut part 3 is formed by easy disassembly and assembly of the strut module 30, according to the sea floor exploration site situation, whether to configure a thin strut and a long vertical length strut part or have a thick thickness.
  • the vertical length can be used to determine whether to construct a short strut.
  • the connection adapter 32 is provided at a position where the thickness or vertical length changes.
  • the screw coupling described above may be used.
  • the cone injector 100 by assembling a plurality of strut module 30 to form a strut portion 3, according to the thickness of the strut portion 3 in accordance with the softness of the sea bed to be inserted
  • the length can be made to an optimum state according to the needs, and thus the cone injector 100 can minimize the risk of deformation such as buckling and breaking during the penetration of the cone intruder into the seabed, and effectively It is possible to inject the dressing 100 into the seabed, and thus, there is an advantage in that richer and more useful seabed information can be obtained.

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Remote Sensing (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

La présente invention concerne un pénétromètre à cône (100), qui chute librement dans un état dressé perpendiculairement et pénètre dans un sol de fond marin de façon à collecter des informations du sol de fond marin, et qui comprend : une partie capteur (1), qui est disposée au niveau de l'extrémité inférieure de celui-ci et comprend un capteur intégré dans celle-ci ; une partie charge utile (2), qui est disposée au niveau de l'extrémité supérieure de celui-ci et reçoit un signal et l'enregistre ; et une partie fût (3) formée entre la partie capteur (1) et la partie charge utile (2), la partie fût (3) présentant une structure dans laquelle une pluralité de modules train de tiges (30) est agencée de façon continue et assemblée à partit d'un état démonté, de telle sorte que la partie fût (3) peut être formée par remplacement avec le module train de tiges (30) possédant une épaisseur et une longueur perpendiculaire sélectionnées pour être appropriées à la souplesse du sol de fond marin destiné à être pénétré par le pénétromètre à cône (100).
PCT/KR2017/002149 2017-02-27 2017-02-27 Pénétromètre à cône du type à chute libre comprenant un fût variable Ceased WO2018155749A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/KR2017/002149 WO2018155749A1 (fr) 2017-02-27 2017-02-27 Pénétromètre à cône du type à chute libre comprenant un fût variable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2017/002149 WO2018155749A1 (fr) 2017-02-27 2017-02-27 Pénétromètre à cône du type à chute libre comprenant un fût variable

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WO2018155749A1 true WO2018155749A1 (fr) 2018-08-30

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220016722A (ko) * 2020-08-03 2022-02-10 한국해양과학기술원 자유낙하식 수중 관입시험기

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5209129A (en) * 1991-07-05 1993-05-11 Iowa State University Research Foundation, Inc. Subsurface sampler
KR20100113010A (ko) * 2009-04-10 2010-10-20 고려대학교 산학협력단 지반 임피던스 측정용 콘 관입시험기
US20110242530A1 (en) * 2007-11-09 2011-10-06 The Regents Of The University Of California In-situ soil nitrate ion concentration sensor
KR20140128720A (ko) * 2013-04-29 2014-11-06 고려대학교 산학협력단 동적 콘관입기를 이용한 계측 시스템 및 이를 이용한 전달 에너지 보정 방법
US20160209309A1 (en) * 2013-09-03 2016-07-21 Dotocean Nv Sediment sounding pole and handheld density profiler

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5209129A (en) * 1991-07-05 1993-05-11 Iowa State University Research Foundation, Inc. Subsurface sampler
US20110242530A1 (en) * 2007-11-09 2011-10-06 The Regents Of The University Of California In-situ soil nitrate ion concentration sensor
KR20100113010A (ko) * 2009-04-10 2010-10-20 고려대학교 산학협력단 지반 임피던스 측정용 콘 관입시험기
KR20140128720A (ko) * 2013-04-29 2014-11-06 고려대학교 산학협력단 동적 콘관입기를 이용한 계측 시스템 및 이를 이용한 전달 에너지 보정 방법
US20160209309A1 (en) * 2013-09-03 2016-07-21 Dotocean Nv Sediment sounding pole and handheld density profiler

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220016722A (ko) * 2020-08-03 2022-02-10 한국해양과학기술원 자유낙하식 수중 관입시험기
KR102446377B1 (ko) * 2020-08-03 2022-09-21 한국해양과학기술원 자유낙하식 수중 관입시험기

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