Patents by Inventor Zhigang Du

Zhigang Du has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11959888
    Abstract: A device for testing overall anchorage performance of a basalt fiber reinforced plastic (BFRP) anchor cable includes an anchor cable anchoring system and a data acquisition system. The anchor cable anchoring system includes a test bed, BFRP arranged over the test bed, and a distributed optical fiber bonded to a surface of the BFRP, the test bed being provided with an anchoring section at one end and an outer anchoring section at the other end, the anchoring section anchors one end of the BFRP, and the outer anchoring section anchors the other end of the BFRP. The data acquisition system includes a modem and a grating connected to two ends of the distributed optical fiber in series, and a center hole jack and a dynamometer arranged between the outer anchoring section and an end of the test bed, and the BFRP penetrates the center hole jack and the dynamometer.
    Type: Grant
    Filed: December 5, 2021
    Date of Patent: April 16, 2024
    Assignee: Wuhan Center, China Geological Survey (Central South China Innovation Center for Geosciences)
    Inventors: Zhenwei Dai, Yanjun Zhang, Xiaolin Fu, Runqing Ye, Jinjun Guo, Zhigang Du
  • Patent number: 11773558
    Abstract: A rapid construction device for a prestressed basalt fiber anchor rod, includes a sleeve drill rod and a drill bit; the sleeve drill rod includes an inner and an outer cylinders; a middle of the drill bit is connected to a lower end of the inner cylinder, an edge of the drill is connected to a lower end of the outer cylinder, a constraint hole is defined in the middle of the drill bit for allowing a basalt fiber reinforced plastic (BFRP) penetrating therethrough, a magnetic baffle is arranged at a lower end of the constraint hole to shield the constraint hole, and a plurality of through holes are defined in the drill bit; and the BFRP is pushed to push off the magnetic baffle to lower the BFRP to a set position, and then a space between the inner and outer cylinders is grouted.
    Type: Grant
    Filed: January 26, 2022
    Date of Patent: October 3, 2023
    Assignee: Wuhan Center, China Geological Survey (Central South China Innovation Center for Geosciences)
    Inventors: Zhenwei Dai, Anle Zhang, Shengtao Zhou, Yanjun Zhang, Xiaolin Fu, Runqing Ye, Jinjun Guo, Zhigang Du
  • Patent number: 11733135
    Abstract: An integral tension test system for a large-tonnage basalt fiber anchor cable includes: a plurality of basalt fiber anchoring bars each comprising a basalt fiber reinforced plastic (BFRP) bundle, a steel strand, a first and a second steel casing pipes, the BFRP bundle including a plurality of BFRPs, and a grating array temperature, stress and vibration sensing optical cables bonded in the BFRP; a vibration table and a reaction frame arranged thereon, wherein the first steel casing pipe of the basalt fiber anchoring bar is located in the reaction frame, the steel strand penetrates one end of the reaction frame to be connected to a center hole jack, and the second steel casing pipe of each basalt fiber anchor cable is located outside the reaction frame to be anchored; and a data acquisition module connected to all of the grating array temperature, stress and vibration sensing optical cables.
    Type: Grant
    Filed: November 10, 2021
    Date of Patent: August 22, 2023
    Assignee: Wuhan Center, China Geological Survey (Central South China Innovation Center for Geosciences)
    Inventors: Zhenwei Dai, Shengtao Zhou, Xiaolin Fu, Yanjun Zhang, Anle Zhang, Runqing Ye, Jinjun Guo, Zhigang Du
  • Publication number: 20230151575
    Abstract: A rapid construction device for a prestressed basalt fiber anchor rod, includes a sleeve drill rod and a drill bit; the sleeve drill rod includes an inner and an outer cylinders; a middle of the drill bit is connected to a lower end of the inner cylinder, an edge of the drill is connected to a lower end of the outer cylinder, a constraint hole is defined in the middle of the drill bit for allowing a basalt fiber reinforced plastic (BFRP) penetrating therethrough, a magnetic baffle is arranged at a lower end of the constraint hole to shield the constraint hole, and a plurality of through holes are defined in the drill bit; and the BFRP is pushed to push off the magnetic baffle to lower the BFRP to a set position, and then a space between the inner and outer cylinders is grouted.
    Type: Application
    Filed: January 26, 2022
    Publication date: May 18, 2023
    Applicant: Wuhan Center, China Geological Survey (Central South China Innovation Center for Geosciences)
    Inventors: Zhenwei Dai, Anle Zhang, Shengtao Zhou, Yanjun Zhang, Xiaolin Fu, Runqing Ye, Jinjun Guo, Zhigang Du
  • Publication number: 20230064403
    Abstract: An integral tension test system for a large-tonnage basalt fiber anchor cable includes: a plurality of basalt fiber anchoring bars each comprising a basalt fiber reinforced plastic (BFRP) bundle, a steel strand, a first and a second steel casing pipes, the BFRP bundle including a plurality of BFRPs, and a grating array temperature, stress and vibration sensing optical cables bonded in the BFRP; a vibration table and a reaction frame arranged thereon, wherein the first steel casing pipe of the basalt fiber anchoring bar is located in the reaction frame, the steel strand penetrates one end of the reaction frame to be connected to a center hole jack, and the second steel casing pipe of each basalt fiber anchor cable is located outside the reaction frame to be anchored; and a data acquisition module connected to all of the grating array temperature, stress and vibration sensing optical cables.
    Type: Application
    Filed: November 10, 2021
    Publication date: March 2, 2023
    Applicant: Wuhan Center, China Geological Survey (Central South China Innovation Center for Geosciences)
    Inventors: Zhenwei DAI, Shengtao ZHOU, Xiaolin FU, Yanjun ZHANG, Anle ZHANG, Runqing YE, Jinjun GUO, Zhigang DU
  • Publication number: 20230025436
    Abstract: An integrated anchoring structure of basalt fiber reinforced plastic (BFRP) bars for a reservoir bank slope includes: a plurality of BFRP anchoring bars, where each of the BFRP anchoring bars includes a plurality of BFRP bars bonded to one another, a lower steel casing pipe, an upper steel casing pipe and a steel strand bonded to an upper portion of the upper steel casing pipe and aligned with the BFRP bars, and a grating array temperature sensing optical cable, a grating array stress sensing optical cable and a grating array vibration sensing optical cable are bonded in each of the BFRP bars; a plurality of shear-resistant bricks distributed on structural planes; a pouring base arranged at a bottom of the anchoring borehole; and an anchoring section arranged at an upper portion of the pouring base.
    Type: Application
    Filed: November 8, 2021
    Publication date: January 26, 2023
    Applicant: Wuhan Center, China Geological Survey (Central South China Innovation Center for Geosciences)
    Inventors: Zhenwei DAI, Shengtao ZHOU, Yanjun ZHANG, Xiaolin FU, Runqing YE, Jinjun GUO, Zhigang DU
  • Publication number: 20220404248
    Abstract: A device for testing overall anchorage performance of a basalt fiber reinforced plastic (BFRP) anchor cable includes an anchor cable anchoring system and a data acquisition system. The anchor cable anchoring system includes a test bed, BFRP arranged over the test bed, and a distributed optical fiber bonded to a surface of the BFRP, the test bed being provided with an anchoring section at one end and an outer anchoring section at the other end, the anchoring section anchors one end of the BFRP, and the outer anchoring section anchors the other end of the BFRP. The data acquisition system includes a modem and a grating connected to two ends of the distributed optical fiber in series, and a center hole jack and a dynamometer arranged between the outer anchoring section and an end of the test bed, and the BFRP penetrates the center hole jack and the dynamometer.
    Type: Application
    Filed: December 5, 2021
    Publication date: December 22, 2022
    Applicant: Wuhan Center, China Geological Survey (Central South China Innovation Center for Geosciences)
    Inventors: Zhenwei DAI, Yanjun ZHANG, Xiaolin FU, Runqing YE, Jinjun GUO, Zhigang DU
  • Patent number: D932586
    Type: Grant
    Filed: March 23, 2020
    Date of Patent: October 5, 2021
    Inventor: Zhigang Du
  • Patent number: D932587
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: October 5, 2021
    Inventor: Zhigang Du
  • Patent number: D932588
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: October 5, 2021
    Inventor: Zhigang Du
  • Patent number: D932590
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: October 5, 2021
    Inventor: Zhigang Du
  • Patent number: D938006
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: December 7, 2021
    Inventor: Zhigang Du
  • Patent number: D938567
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: December 14, 2021
    Inventor: Zhigang Du
  • Patent number: D943707
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: February 15, 2022
    Inventor: Zhigang Du
  • Patent number: D946704
    Type: Grant
    Filed: March 23, 2020
    Date of Patent: March 22, 2022
    Assignee: Tianjin Bright Sight Commerce Co., Ltd
    Inventor: Zhigang Du
  • Patent number: D947318
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: March 29, 2022
    Assignee: Tianjin Bright Sight Commerce Co., Ltd
    Inventor: Zhigang Du
  • Patent number: D947987
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: April 5, 2022
    Inventor: Zhigang Du
  • Patent number: D952793
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: May 24, 2022
    Inventor: Zhigang Du
  • Patent number: D952794
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: May 24, 2022
    Inventor: Zhigang Du
  • Patent number: D958933
    Type: Grant
    Filed: December 18, 2020
    Date of Patent: July 26, 2022
    Assignee: Tianjin Bright Sight Commerce Co., Ltd
    Inventor: Zhigang Du