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A fixed warning device for a seabed surveying instrument and its throwing recovery method

A technology of measuring instrument and recovery method, applied in the field of fixed warning equipment of seabed measuring instrument and its throwing recovery, can solve the problems of insignificant warning effect, destruction, poor stability of fixation, etc., and achieve easy identification and avoidance, avoid damage, and warn The effect is obvious and striking

Inactive Publication Date: 2015-12-02
浙江省河海测绘院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The technical problem to be solved by the present invention is: the fixed stability of the seabed measuring instrument is poor when it is working on the seabed, and it is easy to drift and lose; and its warning effect on the sea surface is not obvious, and it is easy to be damaged by passing ships

Method used

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  • A fixed warning device for a seabed surveying instrument and its throwing recovery method

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Experimental program
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Effect test

Embodiment 1

[0025] The throwing point of the measuring instrument is the coastal waters near Ningbo, Zhejiang. First, the water depth H of the low and flat tide at the throwing point of the measuring instrument is 10m; the difference between high and low tide Δh is 4m; the maximum water velocity V of the rising and falling tide is 1.5m / s; and the direction of the tide; then according to the above data, determine the anchor rope, The length of the bottom rope and the weight of the anchor; the specific method is: the calculation method of the length of the anchor rope: Among them, λ is the wind and wave influence coefficient of the ocean, and its empirical value is 0.1; after calculation, the length of the anchor rope is 32.6m. The calculation method for the length of the bottom rope is: After calculation, the length of the bottom rope is 29.4m; the formula for calculating the weight of the anchor is: After calculation, the weight of the iron anchor is 61.5kg; then, determine the throw...

Embodiment 2

[0031] The throwing point of the measuring instrument is the Qiantang River strong tide area. First, the water depth H of the low and flat tide at the throwing point of the measuring instrument is 3m; the difference between high and low tide Δh is 7m; the maximum water velocity V of the rising and falling tide is 6m / s; The length of the rope and the weight of the anchor; the specific method is: the calculation method of the length of the anchor rope: Among them, λ is the wind and wave influence coefficient of the ocean, and its empirical value is 0.1; after calculation, the length of the anchor rope is 35.5m. The calculation method for the length of the bottom rope is: After calculation, the length of the bottom rope is 34m; the formula for calculating the weight of the anchor is: After calculation, the weight of the iron anchor is 122.5kg; then, determine the throwing point of the iron anchor Ⅰ4 and the iron anchor Ⅱ5; the throwing point of the iron anchor Ⅰ4 is the ...

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Abstract

The invention discloses fixing and warning equipment of an undersea measuring instrument. The equipment comprises a water surface platform, an anchor line I, an anchor line II, an iron anchor I, an iron anchor II, a bottom rope I, a bottom rope II and an instrument rack, wherein a warning device is arranged on the water surface platform; one ends of the anchor line I and the anchor line II are respectively connected with the water surface platform, and the connecting points of the anchor lines I and II with the water surface platform are uniformly distributed on the water surface platform; the other end of the anchor line I is connected with one ends of the iron anchor I and the bottom rope I; the other end of the anchor line II is connected with one ends of the iron anchor II and the bottom rope II; the other ends of the bottom ropes I and II are connected with the instrument rack, and the connecting points of the bottom ropes I and II with the instrument rack are uniformly distributed on the instrument rack. The invention also discloses a tossing and withdrawing method of the equipment. Due to the adoption of the equipment and the method, the measuring instrument can be stably fixed undersea and is not affected by ocean currents and bad weather so as to avoid drift. Moreover, the warning effect on the water surface is obvious and striking, so that passing ships can easily identify and yield, and accordingly the instrument can not be damaged by the ships.

Description

technical field [0001] The invention relates to the field of marine surveying and mapping, in particular to a fixed warning device for a seabed measuring instrument and a throwing and recycling method thereof. Background technique [0002] During the construction of marine engineering, the preliminary scientific research stage and the seabed topographic survey and channel water depth monitoring during the construction stage, it is usually necessary to collect relevant hydrological data such as offshore tidal levels and tidal currents. When there are no islands in the offshore offshore area or temporary tide level stations or current measuring stations need to be set up in the offshore engineering area, it is often necessary to throw tide level gauges or tidal current gauges and other measuring instruments on the seabed of the operation point. At the same time, there are many fishing boats trawling, and the discarded instruments are often damaged by passing ships due to unobv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C13/00
Inventor 南胜陆波叶小凡
Owner 浙江省河海测绘院