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Placing and recycling method for self-drilling cableless type seabed deformation long-time observation device

An observation device and cable-type technology, which is applied in surveying devices, surveying and navigation, open-air water source surveying, etc., can solve problems such as complex processes, lack of in-situ deployment devices and methods, and long time

Active Publication Date: 2017-06-27
QINGDAO INST OF MARINE GEOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is stable and reliable, but the cost is high, the time is long, and the fit between the injection body and the sediment is very poor
For the deployment at a depth of 5m generally used for deformation measurement cables, the traditional ship-borne drilling rig drilling deployment method is complicated and the hole utilization rate is extremely low, which makes the deployment cost unbearable
[0008] At present, there is a lack of effective in-situ deployment devices and methods for flexible deformation measurement cables
Severely restricts scholars' research on the process mechanism of major geological disasters such as submarine landslides, and also poses serious potential hazards to marine engineering construction and offshore production that cannot realize early warning and monitoring

Method used

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  • Placing and recycling method for self-drilling cableless type seabed deformation long-time observation device
  • Placing and recycling method for self-drilling cableless type seabed deformation long-time observation device
  • Placing and recycling method for self-drilling cableless type seabed deformation long-time observation device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0075] Such as figure 1 The deployment method of the shown self-drilling cable-free submarine deformation long-term observation device includes the following steps:

[0076] Step 1: The assembly is completed as Figure 4 The shown self-drilling and cable-free long-term observation device for seabed deformation includes a drill bit part, a deformation measurement cable 9 and a deployment and recovery part connected sequentially from bottom to top. The deployment and recovery part includes a retention part and a recovery part.

[0077] Such as Figure 5The drill bit part shown includes micro-drill bit 20, support tube 23 and micro-control cabin 19 from bottom to top, and support tube 23 and micro-control cabin 19 are connected through, and micro-control cabin 19 is provided with micro-motor, micro-control circuit and battery, The micro-motor is connected to the micro-control circuit, and the battery supplies power to the micro-motor and the micro-control circuit. The rotating ...

Embodiment 2

[0115] The difference with embodiment 1 is:

[0116] A spring protection cover 7 is arranged below the spring buckle through hole 21 , and one end of the spring protection cover 7 is fixed on the support plate 17 . Two ends are respectively fixed on the watertight connector protective cover 14 on the main control cabin 12 and the support plate 17 in the support frame, and the watertight connector protective cover 14 is facing the watertight connector through hole 22 on the support plate 17 .

[0117] The indwelling part is connected with the recovery part in the following way: the watertight connector II 13 is connected to the watertight connector I 16 through the watertight connector through hole 22 from below, and the watertight connector II 13 and the watertight connector I 16 are all located in the watertight connector protection. In the cover 14 , the spring buckle 6 passes through the spring buckle through hole 21 from below to connect with the hook lock 5 of the underwa...

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Abstract

The invention relates to a placing and recycling method for a self-drilling cableless type seabed deformation long-time observation device. The method comprises the steps that (1) an observation device is assembled; (2) a research vessel reaches the placing position, and the observation device is placed in a body free falling manner; (3) the sharp point of a micro bit is in contact with the bottom, and a micro motor is started for drilling; (4) the micro motor is preset to work for 2-4 minutes and stops automatically, a deformation measurement cable fully perpendicularly enters sediment, a seabed base box body is clamped on the surface of the seabed, and field placing is completed; (5) the research vessel reaches the placing position, signals are sent by a deck unit of a water sound releaser, a water sound releaser hook lock of the observation device is opened, and a spring buckle of the water sound releaser is released; (6) after the spring buckle is released, a spring jacks a support plate upwards, at the same time, a waterproof connector is separated, at the moment, a recycling part and a reserving part of the observation device are separated; (7) the recycling part floats to the sea surface and is recycled. According to the placing and recycling method for the self-drilling cableless type seabed deformation long time observation device, the working efficiency is improved, the scientific research cost is reduced, and the operation difficulty of field observation work is reduced.

Description

technical field [0001] The invention relates to a deployment and recovery method of a self-drilling and cable-free long-term observation device for seabed deformation, belonging to the technical field of ocean observation. Background technique [0002] In the coastal zone, sediments are rapidly settled and accumulated through long-distance transport by rivers, and a series of dynamic changes occur under the influence of ocean hydrodynamics (waves, currents, tides, etc.), soil weight, and bioturbation, including sediment Consolidation and compaction process, liquefaction rheological process, erosion and resuspension migration process, in these processes, the composition, structure, physical and mechanical properties and engineering geological properties of sediments undergo dynamic changes, which in turn lead to coastal erosion and port siltation. , submarine landslides, turbidity currents and other marine geological disasters, thus causing huge damage to offshore platforms, ...

Claims

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Application Information

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IPC IPC(8): G01C13/00
CPCG01C13/00
Inventor 郭磊叶思源袁红明赵广明裴绍峰王锦
Owner QINGDAO INST OF MARINE GEOLOGY
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