Patents by Inventor Hengchang YU

Hengchang YU 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).

  • High-strength confined concrete support system for underground tunnel
    Patent number: 10415387
    Abstract: A high-strength confined concrete support system for an underground tunnel. The support system includes multiple confined concrete arches, bolts and cables, and a prestressed steel strand backfilling system. The confined concrete arches all support the surrounding rock of the tunnel and are sequentially arranged along the tunnel. Every two adjacent confined concrete arches are connected by a longitudinal connection structure. The support system is provided with a plurality of layers of steel bar meshes on the surrounding rock side and the tunnel side, and shotcrete layers are sprayed on the support system and the steel bar meshes. The prestressed steel strand backfilling system comprises a prestressed steel strand system and a filling material. The filling material fills the space between each confined concrete arch and the surrounding rock to equalize a load on the confined concrete arch and generate prestress.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: September 17, 2019
    Assignees: SHANDONG UNIVERSITY, SHANDONG TIANQIN MINING MACHINERY EQUIPMENT CO. LTD.
    Inventors: Shucai Li, Qi Wang, Bei Jiang, Yingcheng Luan, Qian Qin, Huibin Sun, Hengchang Yu, Zhaonan Zeng
  • HIGH-STRENGTH CONFINED CONCRETE SUPPORT SYSTEM FOR UNDERGROUND TUNNEL
    Publication number: 20180291736
    Abstract: A high-strength confined concrete support system for an underground tunnel. The support system includes multiple confined concrete arches, bolts and cables, and a prestressed steel strand backfilling system. The confined concrete arches all support the surrounding rock of the tunnel and are sequentially arranged along the tunnel. Every two adjacent confined concrete arches are connected by a longitudinal connection structure. The support system is provided with a plurality of layers of steel bar meshes on the surrounding rock side and the tunnel side, and shotcrete layers are sprayed on the support system and the steel bar meshes. The prestressed steel strand backfilling system comprises a prestressed steel strand system and a filling material. The filling material fills the space between each confined concrete arch and the surrounding rock to equalize a load on the confined concrete arch and generate prestress.
    Type: Application
    Filed: December 22, 2016
    Publication date: October 11, 2018
    Applicants: SHANDONG UNIVERSITY, SHANDONG TIANQIN MINING MACHINERY EQUIPMENT CO. LTD.
    Inventors: Shucai LI, Qi WANG, Bei JIANG, Yingcheng LUAN, Qian QIN, Huibin SUN, Hengchang YU, Zhaonan ZENG