Seabed surface settlement observation device and measurement method
A technology for subsidence observation and seabed surface, which is applied in the directions of measuring devices, height/horizontal measurement, surveying and navigation, etc. It can solve the problems of poor accuracy, time-consuming and laborious, etc., and achieve the effect of improving measurement accuracy and improving measurement accuracy
Active Publication Date: 2019-10-15
OCEAN UNIV OF CHINA +1
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Problems solved by technology
[0004] The object of the present invention is to provide a seabed surface subsidence observation device and measurement method, which are used for long-term observation of seabed deformation, so as to solve the problem in the prior art of analyzing and studying the subsidence of the seabed surface by comparing water depth changes, which is time-consuming and labor-intensive. poor technical problem
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[0043] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0044] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two compo...
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The invention discloses a seabed surface settlement observation device and a measurement method, and belongs to the technical field of seabed observation. The seabed surface settlement observation device comprises a pressure resistance cabin, a reference pressure cabin, a pressure relief end cap and a pressure difference sensor, wherein one end of the pressure resistance cabin is communicated withthe outside; the reference pressure cabin is communicated with the other end of the pressure resistance cabin; the reference pressure cabin is provided with a pressure relief hole; the pressure relief end cap is arranged on the pressure relief hole to carry out sealing and pressure relief on the reference pressure cabin; and the pressure difference sensor is positioned in the pressure resistancecabin and seals two ends of the pressure resistance cabin to detect a pressure difference between the interior of the reference pressure cabin and the outside. By use of the seabed surface settlementmeasurement method, the above seabed surface settlement observation device is adopted for measurement. Initial pressure in the reference pressure cabin and the pressure of the measurement point underan initial state are the same, pressure measured by the pressure difference sensor is a pressure difference generated by a seabed surface sinking distance, the measuring range of the pressure difference sensor is reduced, and a measurement result is accurate.
Description
technical field [0001] The invention relates to the technical field of seabed observation, in particular to a seabed surface subsidence observation device and measurement method. Background technique [0002] The seabed refers to the crustal surface composed of oceanic plates. The deformation and subsidence of seabed sediments are important features of seabed geological disasters, erosion and structural instability. [0003] At present, the sounding technology is mainly used to analyze and study the subsidence of the seabed by conducting multiple soundings on the monitoring points, and then comparing the changes in water depth. This method needs to measure the pressure of deep seawater, which requires a high range of pressure sensors, consumes huge financial resources, and is greatly affected by sea conditions, so the accuracy cannot be guaranteed. At present, there is no effective device that can accurately observe the subsidence of the seabed, especially the deep sea. C...
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Login to View More IPC IPC(8): G01C5/00
CPCG01C5/00
Inventor 张民生魏志明季念迎高冬梅
Owner OCEAN UNIV OF CHINA