In-situ detector for deposit on marine-bottom surface physical-property parameter

A technology for surface sediment, in situ detection

Inactive Publication Date: 2007-04-04
OCEAN UNIV OF CHINA
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  • Abstract
  • Description
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Problems solved by technology

The test of these physical property parameters is currently obtained through laboratory tests. However, from sampling to transporting the sediment to the laboratory, it is very easy to generate water loss disturbance, resulting in deviations between the indoor test results and the actual results.

Method used

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  • In-situ detector for deposit on marine-bottom surface physical-property parameter

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Embodiment Construction

[0010] As shown in Fig. 1, the feature of the present invention is that it comprises a water content probe 2 vertically or axially fixed on a metal cylinder 1, and is connected with a data acquisition and processing device 5 via an armored cable 4 at the top, and the water content The detection end of the probe 2 extends out of the metal cylinder 1 . The above-mentioned moisture content probe 2 is selected from the ML2x type soil moisture meter. If there is only the water content probe 2, it can be axially embedded in the metal cylinder 1.

[0011] As shown in Fig. 1, the feature of the present invention is that a density probe 3 connected with an armored cable 4 and a data acquisition and processing device 5 can also be vertically fixed in the above-mentioned metal cylinder 1, and the detection end of the density probe 3 stretches out of the metal Outside the cylinder 1. The above-mentioned density probe 3 is selected from an existing nuclear density meter.

[0012] As sho...

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Abstract

An original-position detecting device used for obtaining physical property parameter of deposit on surface of sea-bottom is prepared as fixing a water content probe on metal cylinder vertically or axially and connecting said probe to data collection and treatment unit by armoured cable as well as making probe head be extended out from said cylinder, considering to measure natural density of surface soil body simultaneously than also fixing a density probe being connected to data collection and treatment unit through armoured cable on said metal cylinder.

Description

technical field [0001] The invention relates to a device for in-situ testing the physical property parameters of seabed surface soil sediments, in particular to an in-situ detection device for the physical property parameters of seabed surface sediments. Background technique [0002] The physical property parameters of seabed surface sediments, such as the natural water content and natural density of sediments, are indispensable and important parameters for the design and construction of submarine pipelines, cables and other engineering structures directly located on the seabed surface. The test of these physical property parameters is currently obtained through laboratory tests. However, from sampling to transporting the sediment to the laboratory, it is very easy to generate water loss disturbance, resulting in deviations between the indoor test results and the actual results. Obviously, only in-situ testing can avoid measurement errors caused by such disturbances, and can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00G01N35/00
Inventor 林霖冯秀丽李安龙刘冬雁
Owner OCEAN UNIV OF CHINA
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