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公开(公告)号：US20210364290A1
公开(公告)日：2021-11-25
申请号：US16608632
申请日：2019-05-22
Applicant: OCEAN UNIVERSITY OF CHINA
Inventor： Yonggang Jia , Chaogqi Zhu , Xiujun Guo , Qingsheng Meng , Tao Liu , Lanjun Liu , Haibo Xu , Minsheng Zhang , Xiaclei Liu , Dong Wang , Hongxian Shan
Abstract: A long-term in-situ observation device for the deep sea bottom supported engineering geological environment is provided, including: a sediment acoustic probe, a sediment pore water pressure probe, a three-dimensional resistivity probe, a water observation instrument, a long-term observation power supply system, a probe hydraulic penetration system, a general control and data storage transmission system, an acoustic releaser, an underwater acoustic communication apparatus, and an instrument platform. The observations include the engineering properties, physical properties, mechanical properties, and biochemical properties of a seawater-seabed interface-sediment. The engineering properties and the physical and mechanical indexes of seafloor sediments are comprehensively determined by three-dimensional measurement of seafloor resistivity and acoustic wave measurements. The physical and biochemical properties of seawater are expected to be acquired by sensors. The observation probe penetrates into the sediments following the hydraulic method. Powered by seawater dissolved oxygen batteries; data transmission is achieved through sea surface relay buoys and satellite communications. The present invention provides an effective integrated, in situ and long-term observation device and method for the deep sea engineering geological environment.
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公开(公告)号：US20220206182A1
公开(公告)日：2022-06-30
申请号：US17689928
申请日：2022-03-08
Applicant: OCEAN UNIVERSITY OF CHINA
Inventor： Yonggang Jia , Zhihan Fan , Chunsheng Ji , Xiaoshuai Song , Hailong Shan
Abstract: The present invention relates to the technical field of long-term in-situ monitoring of sediment disturbance in deep-sea surface mineral mining, and more particularly to a device for monitoring deep-sea sediment environment in mining polymetallic nodules. The monitoring system comprises: acoustic Doppler flow profilers, a spontaneous potential probe, a turbidity meter and an underwater camera. The invention can realize long-term in-situ observation of sediment disturbance, and can realize the mechanical recovery of probe rod-type equipment without large-scale mechanical devices, thereby reducing the overall weight of the recovery equipment and increasing the probability of successful equipment recovery. Compared with the existing long-term in-situ observation equipment on the seabed, it is more environmentally friendly, efficient, energy-saving and reliable.
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公开(公告)号：US11110997B2
公开(公告)日：2021-09-07
申请号：US16632509
申请日：2019-04-01
Applicant: OCEAN UNIVERSITY OF CHINA
Inventor： Yonggang Jia , Hong Zhang , Xiaolei Liu , Hongxian Shan
IPC: B63B35/00 , A47B91/02 , B63B1/30 , B63B22/00 , E02D1/02 , E02D1/04 , E21B15/02 , E21B25/16 , E21B25/18 , E21B49/00 , F16M7/00 , G01L7/00 , G01N3/30 , G01N3/42 , G01N11/12 , G01N11/14 , G01N33/24 , G01S1/70 , G01V1/38 , G01V9/00 , H04B11/00 , H04B13/02
Abstract: The present invention discloses a system for measuring the mechanical properties of sea floor sediments at full ocean depth. The system includes an overwater monitoring unit and an underwater measurement device, where the underwater measurement device includes an observation platform and a measuring mechanism; the observation platform includes a frame-type body and a floating body, a wing panel, a floating ball cabin, a leveling mechanism, a counterweight, and a release mechanism mounted on the frame-type body; the floating ball cabin seals a circuit system; the leveling mechanism adjusts the underwater measurement device horizontally on the sea floor when the frame-type body reaches the sea floor; the release mechanism discards the counterweight for recovery of the unit after the underwater measurement device completes the underwater operation; the measuring mechanism includes at least one of a cone penetration measuring mechanism, a spherical penetration measuring mechanism, and a vane shear measuring mechanism, or a sampling mechanism.
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Patent Agency Ranking
公开(公告)号：US20200284709A1
公开(公告)日：2020-09-10
申请号：US16777757
申请日：2020-01-30
Applicant: Ocean University of China
Inventor： Xiaolei Liu , Hong Zhang , Yonggang Jia , Jiewen Zheng , Hongxian Shan
Abstract: The present invention discloses a second-generation in-situ test device for strength of a shallow water sediment, including a workboat and a static cone penetration test unit carried by the workboat, where the static cone penetration unit includes a mounting frame, a penetration unit, a control cabin and a hydraulic unit; the penetration unit and the hydraulic unit are both electrically connected to the control cabin. In this solution, the workboat is used to carry the test equipment, and the static cone penetration test unit is carried on the workboat with a special structure. Based on a double-cable lifting frame, the equipment is launched and recovered through a moon pool in the center of a hull. This significantly improves the efficiency and safety of the sediment strength test operation in a shallow water environment.
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公开(公告)号：US12061304B2
公开(公告)日：2024-08-13
申请号：US17689928
申请日：2022-03-08
Applicant: OCEAN UNIVERSITY OF CHINA
Inventor： Yonggang Jia , Zhihan Fan , Chunsheng Ji , Xiaoshuai Song , Hailong Shan
CPC classification number: G01V11/002 , E21C39/00 , G01V1/3852 , G01V3/082 , G01V8/02 , B63B27/10 , E21C50/00
Abstract: A device for monitoring deep-sea sediment environment in mining polymetallic nodules is provided. The monitoring system includes: acoustic Doppler flow profilers, a self-potential probe, a turbidity meter and an underwater camera. The invention can realize long-term in-situ observation of sediment disturbance, and can realize the mechanical recovery of probe rod-type equipment without large-scale mechanical devices, thereby reducing the overall weight of the recovery equipment and increasing the probability of successful equipment recovery. Compared with the existing long-term in-situ observation equipment on the seabed, it is more environmentally friendly, efficient, energy-saving and reliable.
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公开(公告)号：US11499826B2
公开(公告)日：2022-11-15
申请号：US16608632
申请日：2019-05-22
Applicant: OCEAN UNIVERSITY OF CHINA
Inventor： Yonggang Jia , Chaoqi Zhu , Xiujun Guo , Qingsheng Meng , Tao Liu , Lanjun Liu , Haibo Xu , Minsheng Zhang , Xiaolei Liu , Dong Wang , Hongxian Shan
Abstract: A long-term in-situ observation device for the deep sea bottom supported engineering geological environment is provided, including: a sediment acoustic probe, a sediment pore water pressure probe, a three-dimensional resistivity probe, a water observation instrument, a long-term observation power supply system, a probe hydraulic penetration system, a general control and data storage transmission system, an acoustic releaser, an underwater acoustic communication apparatus, and an instrument platform. The observations include the engineering properties, physical properties, mechanical properties, and biochemical properties of a seawater-seabed interface-sediment. The engineering properties and the physical and mechanical indexes of seafloor sediments are comprehensively determined by three-dimensional measurement of seafloor resistivity and acoustic wave measurements. The physical and biochemical properties of seawater are expected to be acquired by sensors. The observation probe penetrates into the sediments following the hydraulic method.
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公开(公告)号：US11448577B2
公开(公告)日：2022-09-20
申请号：US16777757
申请日：2020-01-30
Applicant: Ocean University of China
Inventor： Xiaolei Liu , Hong Zhang , Yonggang Jia , Jiewen Zheng , Hongxian Shan
Abstract: The present invention discloses a second-generation in-situ test device for strength of a shallow water sediment, including a workboat and a static cone penetration test unit carried by the workboat, where the static cone penetration unit includes a mounting frame, a penetration unit, a control cabin and a hydraulic unit; the penetration unit and the hydraulic unit are both electrically connected to the control cabin. In this solution, the workboat is used to carry the test equipment, and the static cone penetration test unit is carried on the workboat with a special structure. Based on a double-cable lifting frame, the equipment is launched and recovered through a moon pool in the center of a hull. This significantly improves the efficiency and safety of the sediment strength test operation in a shallow water environment.
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公开(公告)号：US10302471B1
公开(公告)日：2019-05-28
申请号：US16265979
申请日：2019-02-01
Applicant: Ocean University of China
Inventor： Tao Liu , Guanli Wei , Lei Guo , Xiuqing Yang , Xiujun Guo , Dong Wang , Yonggang Jia , Minsheng Zhang , Qingsheng Meng , Xiaolei Liu , Yongmao Zhu , Jia Xin
Abstract: A device for observing the changes in abyssal flow based on differential pressure measurement, includes differential pressure sensing chamber and base connected through communicating portion, controller provided inside communicating portion, floating body and releasing device. Floating body is located on differential pressure sensing chamber and retracted through releasing device. Sensing chamber includes ambient water pressure chamber in communication with hydrostatic pressure chamber. Communicating portion is blocked by spring sheet. The spring sheet is provided with optical fiber sensor. Hydrostatic pressure chamber is always in communication with seawater, and ambient water pressure chamber is always in communication with water in abyssal sedimentary layer. Releasing device includes electric winch provided with acoustic signal device. Base is provided with earth pressure sensor and weight member. Optical fiber sensor, acoustic signal device, and earth pressure sensor are connected with controller. Differential pressure at a position can be measured by feedback from each sensor.
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