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Floating seabed base

A seabed-based, floating technology, applied in the direction of anchors, ship construction, ships, etc., can solve the unavoidable problems such as trawling damage, and achieve the effects of saving observation funds, high reliability, and reducing costs

Pending Publication Date: 2021-02-05
GUANGDONG OCEAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

CN201910659491.3 can prevent sediment layer coverage but cannot avoid damage to it by trawl nets

Method used

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  • Floating seabed base
  • Floating seabed base
  • Floating seabed base

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Embodiment 1: as figure 1 As shown, a floating seabed foundation includes a seabed foundation box 140, a release cable 126, and a gravity anchor 134. The seabed foundation box 140 is connected to the gravity anchor 134 through the release cable 126, separated The board 141 divides the seabed base box 140 into an upper box 139 and a lower box 136, the upper box 139 is fixedly installed with an underwater acoustic communication machine 105 and a release device 128, and the signal cable 106 is connected to the water Acoustic communicator 105 and the release device 128, the release device 128 is connected to the partition 141 using connecting bolts 508, and various self-contained observation instruments such as ADCP 107 and CTD 101 can be carried inside the seabed base box , and other optional observation instruments 112, such as OBS (undersea seismograph), suspended sediment collector; fixedly installed with a cable winding device in the lower box 136, the cable winding de...

Embodiment 2

[0050] Embodiment 2, embodiment 2 is to further limit embodiment 1; the release device 128 includes a bolt 501, a release device frame 502, an electromagnet 503, a signal cable 106, a ferromagnetic disc 504, a connecting rod 505, Corrosion-resistant spring 506, release cable 126, slider 507 and connecting bolt 508; the electromagnet 503 is fixed on the frame 502 of the release device using the bolt 501, and the connecting rod 505 is covered with the corrosion-resistant spring 506, the right end is threaded to the slider 507, passing through the hole on the frame 502, the left end is threaded to the ferromagnetic disc 504, and the ferromagnetic disc 504 is installed on the right side of the electromagnet 503, The release cable 126 is sleeved on the slider 507 . A felt pad 509 is arranged between the release device frame 502 and the partition 141, and the connecting bolt 508 connects the release device frame 502, the partition 141 and the felt pad 509 as one; the underwater acou...

Embodiment 3

[0051] Embodiment 3. Embodiment 3 is to further limit Embodiment 1 or 2; the gravity anchor 134 includes a reinforced concrete block 120 and a barb 122, and the barb 122 is welded with the steel bar in the reinforced concrete block 120 as a whole. The barb 122 is welded under the reinforced concrete block 120; the steel bar and the barb 122 are made of corrosion-resistant stainless steel; the barb 122 is inserted into the soft and hard transitional sediment layer 133 to prevent the seabed foundation from sliding on the seabed under force, and the gravity anchor A suspension ring 127 is arranged at the center of 134 , and the release cable 126 is fixedly connected to the suspension ring 127 . The deployment cable 135 is attached to unmarked lifting eyes on both sides.

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Abstract

The invention relates to the technical field of fixed-point ocean observation, and particularly relates to a floating seabed base which comprises a seabed base box body and a gravity anchor. The seabed base box body is connected with the gravity anchor through a release cable, a release device is installed on a partition plate arranged in the seabed base box body, and the partition plate divides the seabed base box body into an upper box body and a lower box body. The upper box body is provided with an underwater acoustic communication machine, an ADCP, a CTD, an optional observation instrument and a floating ball; and the lower box body is provided with a cable winding device with a friction disc. In a releasing process, when the partition plate is located on an interface of the soft sediment layer and seawater, a torque generated by a release cable is larger than the maximum static friction torque of the friction disc of the cable winding device, a cable winding roller rotates, the release cable is lengthened, the seabed base box body is prevented from continuously sinking, and the releasing point soft sediment layer thickness is adapted. Technical problems that the seabed base release cable is too short, the seabed base may be buried in the soft sediment layer to be lost, and the seabed base release cable is too long and may be dragged away by a fishing net to be lost are solved, and an instrument loss rate and unit observation data cost are greatly reduced.

Description

technical field [0001] The invention relates to the technical field of fixed-point ocean observation, in particular to a floating seabed foundation. Background technique [0002] The seabed base is an unattended marine element measurement platform system that is stationary on the seabed. The deployment of the sea area is mainly concentrated in the ocean coast and near-shore shallow sea area. It is a node of the three-dimensional monitoring network. The seabed-based box is equipped with a variety of self-contained observation instruments such as ADCP (Acoustic Doppler Current Profiler), CTD (Temperature Salt Depth Instrument), OBS (Ocean Sea Seismograph), suspended sediment collector and other optional Instruments, such as OBS (undersea seismograph) and suspended sediment collectors, after being deployed on the seabed, can conduct long-term continuous observation of marine elements, such as suspended sediment parameters, flow velocity profiles, water temperature, water level,...

Claims

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Application Information

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IPC IPC(8): G01C13/00G01H3/00G01N9/36B63B21/16B63B21/29
CPCG01C13/00G01H3/00G01N9/36B63B21/16B63B21/29
Inventor 王淑青雷桂斌彭银桥施旭东邱丽瑶
Owner GUANGDONG OCEAN UNIVERSITY
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