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Deep-sea shallow sandy sediment sampler and its sampling method

A sediment and sampler technology, applied in the field of deep-sea sediment sampling, can solve the problems of inability to obtain deep-sea sandy sediments and use in deep-sea areas, and achieve the effects of saving observation costs, strong reusability, and simple structure

Active Publication Date: 2022-03-22
OCEAN UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional samplers can obtain seabed fine-grained muddy sediments to varying degrees, but deep-sea sandy sediments cannot be obtained
Some samplers can obtain sandy sediments in coastal areas, but cannot be used in deep sea areas

Method used

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  • Deep-sea shallow sandy sediment sampler and its sampling method
  • Deep-sea shallow sandy sediment sampler and its sampling method
  • Deep-sea shallow sandy sediment sampler and its sampling method

Examples

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Embodiment Construction

[0029] Such as Figure 1-5 A deep-sea shallow sandy sediment sampler is characterized in that it includes a vibrating part I and a sampling part II located below the vibrating part I, and the vibrating part I includes a sealed cabin 3, a counterweight 2 above the sealed cabin 3 and The lifting ring 1 on the top of the counterweight 2, the sealed cabin 3 is provided with an acceleration sensor 4, a controller 5, a battery 6 and a driving motor 7;

[0030] The sampling part II includes a box with an open bottom, the side of the box is a side plate 11, and the top is a top plate 14. The top plate 14 and the side plate 11 are connected to each other by a fixing bolt 13, and the side plate 11 is provided with a plurality of Pressure relief hole 10; ensure that the pressure inside and outside the box is always consistent;

[0031] A plurality of vertical plates 15 parallel to the left and right side plates 11 are arranged inside the box body, and the upper edge of the vertical plat...

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Abstract

The deep-sea shallow sandy sediment sampler and its sampling method include a vibrating part and a sampling part connected by bolts, and the two can be separated freely. The vibrating part includes a suspension ring, a counterweight, and a sealed cabin, and the sealed cabin includes a battery, an acceleration sensor, a drive motor and a controller. The top cover of the sampling part is detachable, the side wall and the top cover are embedded together, and freely detachable steel sheets are distributed in the side wall. The steel sheet can ensure the free bending of the sampling part when it is inserted into the seabed, and almost does not hinder the insertion. When the sampler is pulled out, the steel sheet prevents the internal sandy sediment from sliding down. A number of pressure relief holes are distributed on the top cover and side wall of the sampling part to ensure that the pressure inside and outside the sampling box is consistent. The invention is simple in structure, easy to operate, can increase or decrease the number of side walls according to needs, can tightly seal the bottom of the sampling device during the process of pulling out the sediment, effectively prevent the loss of loose sediment samples, and have consistent internal and external pressure differences, reducing the difficulty of sampling. Improve sampling efficiency.

Description

technical field [0001] The invention belongs to the technical field of deep-sea sediment sampling, and in particular relates to a deep-sea shallow sandy sediment sampler and a sampling method thereof. Background technique [0002] A large number of seabed sediments are distributed on the seabed. From the continental shelf to the deep-sea basin, the particles of the seabed sediments vary greatly, mainly including coarse sand, fine sand, silt, silty clay and deep-sea clay and other types of sediments. Seabeds are developed in some areas Sand wave, especially in the northern shelf and shelf break area of ​​the South China Sea. Seabed sampling is the use of samplers to obtain seabed sediment or rock samples. It is an important means of marine research. At present, the commonly used seabed sediment samplers include grab type, gravity type, piston type, hammer type and vibration type, etc. , and the vibrating sampler has the highest sampling efficiency. Conventional samplers can...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/08G01N1/02
CPCG01N1/02G01N1/08G01N2001/021
Inventor 田壮才贾永刚任子茵季春生郑晓泉杜奇智张少同
Owner OCEAN UNIV OF CHINA