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An in-situ test device for deep seabed shallow sediments

A technology for in-situ testing and sedimentation, applied in measuring devices, surveying and navigation, open-air water source surveying, etc., can solve problems such as saturated looseness, large thickness, and reduced engineering application value of soil parameters

Active Publication Date: 2017-12-08
OCEAN UNIV OF CHINA
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  • Abstract
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Problems solved by technology

In the process of conventional marine survey, because the seabed soil is generally high in water content, thick, saturated and loose, and easily disturbed, it is difficult for conventional drilling sampling and laboratory tests to truly reflect the in-situ parameters of the shallow seabed soil, which greatly reduces the Engineering application value of soil parameters

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  • An in-situ test device for deep seabed shallow sediments
  • An in-situ test device for deep seabed shallow sediments
  • An in-situ test device for deep seabed shallow sediments

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Embodiment Construction

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, the drawings only show some but not all structures related to the present invention.

[0023] figure 1 A schematic structural diagram of an in-situ testing device for deep-sea bottom sediments provided by the embodiment of the present invention, figure 2 A schematic diagram of the internal structure of a sealed cabin of a deep-sea subsea shallow sediment in-situ testing device provided by the embodiment of the present invention, image 3 A schematic cross-sectional view of a disc composed of a counterweight of an in-situ testing device for deep-sea bottom sediments provided by the embodiment of the present inventi...

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Abstract

The invention discloses a deep sea floor shallow sediment in-situ testing device which comprises penetration equipment and release equipment. The penetration equipment is sequentially provided with a probe, a probing rod, a balance weight and a flow guide sleeve from bottom to top. A conical tip is arranged at the lower end of the probe. A pore water pressure sensor and a resistance sensor are arranged in the probe. A sealed cabin is arranged in the flow guide sleeve. A data collecting and storing system and an acceleration sensor are arranged in the sealed cabin. The acceleration sensor is electrically connected with the data collecting and storing system. The pore water pressure sensor and the resistance sensor are electrically connected with the data collecting and storing system through a water tight cable. The device has the advantage of being capable of obtaining sea floor shallow in-situ soil mass properties of different depths fast and accurately.

Description

technical field [0001] The invention relates to the field of marine survey equipment, in particular to an in-situ testing device for deep-sea bottom sediments. Background technique [0002] The physical and mechanical properties testing of seabed sediments is an indispensable link in the design of submarine cables and oil pipelines, the stability evaluation of seabed sediments and the evaluation of marine fishery resources. [0003] In recent years, with my country's increasing efforts in the exploration and development of oil and gas resources, the demand for testing the mechanical properties of sediments in shallow seabed has been increasing. In the process of conventional marine exploration, because the seabed soil is generally high in water content, thick, saturated, loose and easily disturbed, it is difficult for conventional drilling sampling and laboratory tests to truly reflect the in-situ parameters of the shallow seabed soil, which greatly reduces the The engineer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C13/00
CPCG01C13/00
Inventor 张民生贾永刚季福东王秀海
Owner OCEAN UNIV OF CHINA
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