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Original-space detector and detection method for beach shallow sea sediment strength

An in-situ detection and deposition technology, applied in the direction of applying stable tension/pressure to test material strength, transportation and packaging, ships, etc., to achieve the effect of reducing the total cost of work, improving work efficiency, and simple and effective test accuracy

Inactive Publication Date: 2013-06-12
OCEAN UNIV OF CHINA
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Problems solved by technology

Therefore, in terms of in-situ testing technology for the strength of shallow sea sediments, my country still does not have the technology and equipment with its own independent intellectual property rights. Bottleneck technical problems in engineering construction such as coastal infrastructure

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  • Original-space detector and detection method for beach shallow sea sediment strength
  • Original-space detector and detection method for beach shallow sea sediment strength
  • Original-space detector and detection method for beach shallow sea sediment strength

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Embodiment Construction

[0043] as attached figure 1 As shown, the in-situ detection device for the strength of shallow sea sediments of the present invention mainly includes:

[0044] A control boat 6 is used to control the underwater part of the whole device, and the control boat 6 is equipped with a control device 5, an inflation device 7 and a vacuum generating device 8;

[0045] The underwater part includes a frame device 1, which is used to provide a reaction force for the in-situ detection device of the shallow sea sediment strength and is towed by the hull in the water; an air pressure chamber 2 is arranged in the frame device 1, and is connected with the The inflatable device 7 is connected with the vacuum generating device 8, which is used to provide and eliminate buoyancy for the frame device 1, so that the entire underwater part can float from the bottom to the water surface; the penetrating device 3 is arranged in the frame device 1 for The in-situ penetration test is performed on the stre...

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Abstract

The invention discloses an original-space detector and a detection method for beach shallow sea sediment strength. The original-space detector for the beach shallow sea sediment strength comprises a control ship and a frame device, wherein the control ship is provided with an air charging device and a vacuum generator and the frame device is provided with an injection device and a hydraulic device. An air pressure chamber on the frame device is connected with the air charging device and the vacuum generator. The air pressure chamber is a cylindrical leather bag with cross section being circular and vertically arranged. A protection cylinder is further arranged outside the leather bag. Water discharge holes are formed in the surface of the protection cylinder. The water discharge holes are in an oval shape, a V shape or a U shape. The method comprises the steps that the frame device is pulled to a target point through a ship and sinks to the seabed through self weight, strength of sediment under the seabed is detected through a hydraulic injection manner, contacting probe strength testing parameters are obtained, test points stratums are divided according to strength values of various layers of soil, names are chosen for the stratums, and bearing force and modulus on beach shallow sea foundation sole are confirmed. According to the original-space detector and the detection method for the beach shallow sea sediment strength, the defect that a large-scale research vessel can not be driven to a beach shallow sea range to conduct original-space strength detection for the seabed sediment is overcome, geological exploration can be repeatedly conducted in different seabed areas, cost is greatly reduced, and efficiency is improved.

Description

technical field [0001] The invention belongs to the field of marine geological survey, and in particular relates to an in-situ detection device and method for shallow sea sediment strength. Background technique [0002] Shallow sea areas mainly refer to coastal tidal flats, intertidal zones, and shallow sea areas. The water depth ranges mainly from 0 to 10 meters. It has important scientific research and economic value, and has become an important position for China's oil exploration and development. In-situ testing of the sediment strength in shallow seas can greatly reduce the number of boreholes in marine engineering surveys, improve the quality and accuracy of engineering surveys, and have obvious economic benefits, greatly shortening the survey cycle for marine engineering geological evaluation. As the development of offshore oil and gas resources continues, the in-situ testing technology for sediment strength will be widely used in engineering geological surveys in sha...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63C11/52G01N3/10
Inventor 贾永刚刘晓磊郑杰文单红仙郭磊郭腾飞
Owner OCEAN UNIV OF CHINA
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