Patents Assigned to CCCC FIRST HARBOR ENGINEERING CO., LTD.
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Patent number: 11821885Abstract: The disclosure discloses a test method for simulating sediment pollutant release under the effect of river channel erosion, which comprises preparing a test device, presetting a water depth and a flow velocity in a test water tank, and calculating a flow rate in the test water tank; paving the sediment in a sediment storage box, and covering an upper surface of the sediment with a water baffle; adding water into the test water tank until a preset water depth, starting a variable speed motor to drive a flow-making propeller to run to make the flow rate reach the required flow rate and keep the flow velocity constant; after the water flow becomes constant, the water baffle retracting to expose the surface of the sediment; opening sampling ports for layered sampling; measuring water; and respectively measuring concentration variation and vertical distribution features of sediment pollutant under different simulated power conditions.Type: GrantFiled: February 8, 2023Date of Patent: November 21, 2023Assignees: TIANJIN PORT ENGINEERING INSTITUTE CO., LTD. OF CCCC FIRST HARBOR ENGINEERING CO., LTD, CCCC FIRST HARBOR ENGINEERING CO., LTD., TIANJIN PORT ENGINEERING QUALITY TESTING CENTER CO., LTD., CHANGJIANG WUHAN WATERWAY ENGINEERING COMPANYInventors: Zhichao Dong, Danzhong Liu, Jinfang Hou, Aimin Liu, Binbin Xu
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Publication number: 20230184735Abstract: The disclosure discloses a test method for simulating sediment pollutant release under the effect of river channel erosion, which comprises preparing a test device, presetting a water depth and a flow velocity in a test water tank, and calculating a flow rate in the test water tank; paving the sediment in a sediment storage box, and covering an upper surface of the sediment with a water baffle; adding water into the test water tank until a preset water depth, starting a variable speed motor to drive a flow-making propeller to run to make the flow rate reach the required flow rate and keep the flow velocity constant; after the water flow becomes constant, the water baffle retracting to expose the surface of the sediment; opening sampling ports for layered sampling; measuring water; and respectively measuring concentration variation and vertical distribution features of sediment pollutant under different simulated power conditions.Type: ApplicationFiled: February 8, 2023Publication date: June 15, 2023Applicants: TIANJIN PORT ENGINEERING INSTITUTE CO., LTD. OF CCCC FIRST HARBOR ENGINEERING CO., LTD., CCCC FIRST HARBOR ENGINEERING CO., LTD., TIANJIN PORT ENGINEERING QUALITY TESTING CENTER CO., LTD., CHANGJIANG WUHAN WATERWAY ENGINEERING COMPANYInventors: Zhichao DONG, Danzhong LIU, Jinfang HOU, Aimin LIU, Binbin XU
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Patent number: 11674283Abstract: The present application provides a semi-submersible immersed tube transportation and installation integrated ship and a construction process; the integrated ship includes: a deck structure; two floating structures, ballast water being able to be injected therein; and upper portions or top surfaces of the two floating structures are connected by the deck structure; and two support mechanisms, disposed on opposite sides of the two floating structures respectively; and each support mechanism is disposed at a lower portion or a bottom of the floating structure. The integrated ship can reduce the draught of the integrated ship carrying an immersed tube and realize the transportation requirements of shallow waterway.Type: GrantFiled: September 15, 2022Date of Patent: June 13, 2023Assignee: CCCC FIRST HARBOR ENGINEERING CO., LTD.Inventors: Yiyong Li, Naishou Zhang, Chuang Du, Zengjun Li, Yuanping Fu, Yuxi Feng, Jianning Zhang
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Patent number: 11655608Abstract: The present application provides a water stopping device of suspension and sliding type, including: a water stop; a first end thereof is connected with a first joint segment and a second end thereof is connected with a second joint segment to form a water stopping cavity; at least one first rod; a first end thereof is connected with the first joint segment and a second end thereof is movably connected with the second joint segment; and at least one first hanging structure, connected with the water stop and the corresponding first rod, and slidably provided on the corresponding first rod. The water stopping device can be applied in joint construction of an immersed tunnel.Type: GrantFiled: December 6, 2022Date of Patent: May 23, 2023Assignee: CCCC FIRST HARBOR ENGINEERING CO., LTD.Inventors: Zengjun Li, Naishou Zhang, Wei Pan, Yiyong Li, Qiang Wang, Jinjin Ning, Chuang Du
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Patent number: 10836459Abstract: A self-propelled integrated ship for transporting and installing immersed tubes of an underwater tunnel comprises a first ship body and a second ship body which are parallel with each other, a connection structure is arranged between the first ship body and the second ship body; the first ship body, the second ship body and the connection structure are provided with hauling and hoisting devices, a loading space is formed between the first ship body and the second ship body and below the connection structure; a to-be-installed member is arranged in the loading space and is connected with the ship; and the first ship body and the second ship body are provided with propelling power devices and positioning devices. The loading space is provided in a lower part of the integrated ship, and a member to be transported is placed in the loading space and floated in the water, so that most of the weight of the member is shared by buoyancy. The member is transported to a designated site and installed precisely.Type: GrantFiled: May 14, 2019Date of Patent: November 17, 2020Assignee: CCCC FIRST HARBOR ENGINEERING CO., LTD.Inventors: Yiyong Li, Qiang Guo, Zengjun Li
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Patent number: 10781567Abstract: A foundation treatment method for piling a foundation structure by penetrating a hardpan layer, i.e., a Deep Slurry Mixing method, comprising following steps: disturbing, by a mechanical device, a location where the foundation structure is to be piled, so that the mechanical device penetrates the hardpan layer of a natural foundation; then injecting clay slurry into the hardpan layer of the natural foundation by a pumping device, an improved foundation is formed after mixing; and piling the foundation structure. The method can change soil property of the original natural foundation, break the hardpan layer, reduce piling resistance of the steel plate cylinder or similar foundation structure, reduce uneven force during the piling process and improve driveability.Type: GrantFiled: October 9, 2019Date of Patent: September 22, 2020Assignee: CCCC FIRST HARBOR ENGINEERING CO., LTD.Inventors: Yiyong Li, Naishou Zhang, Chao Gao, Zengjun Li, Bingchuan Guo
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Patent number: 10689828Abstract: The present application discloses a dredging system for a pre-paved gravel foundation bed surface in open sea deep water, including a dredging mechanism, which includes a dredging suction head, a power component and a dredging pipeline, wherein the dredging suction head is connected with the dredging pipeline; the dredging pipeline is communicated with the power component; the dredging suction head includes at least one ridge surface suction port and at least one furrow suction port; the openings of all the furrow suction ports are lower than those of all the ridge surface suction ports; a lifting mechanism, which is connected with the dredging suction head and is used for lifting the dredging suction head to the gravel foundation bed surface; a moving mechanism, which is connected with the lifting mechanism and is used for driving the dredging suction head to move within a dredging range of the gravel foundation bed surface.Type: GrantFiled: January 12, 2018Date of Patent: June 23, 2020Assignees: Shanghai Zhenhua Heavy Industries Co., Ltd., No. 2 Engineering Co. of CCCC First Harbor Engineering Co., Ltd.Inventors: Ming Lin, Xuejun Wang, Gang Yin, Linlin Yuan, Faqiang Su, Hong Xiang, Bin Xie, Dejin Liu, Bo Meng, Wei Xu, Zengjun Li, Jianjun Zhang, Jinbao Liu, Xiangwei Zhang, Xiangrong Zhou, Mingxiang Wang, Hongbo Wei, Chunfeng Zhu, Ziyang Bi, Jiangwei Song, Zhenjie Tao, Ling Zhu