Patents by Inventor Malin Dong

Malin Dong 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).

  • Method for calculating diameter of annular non-full formwork support for circular shaft
    Patent number: 12618668
    Abstract: The present invention relates to the technical field of tunnel shield construction, specifically to a method for calculating diameter of an annular non-full formwork support for a circular shaft. By calculating and designing an inner diameter of a formwork support, sufficient space left inside a shaft can be ensured, and the thickness of secondary lining can be ensured at the same time, thereby preventing from affecting the structural stability of the shaft.
    Type: Grant
    Filed: December 8, 2023
    Date of Patent: May 5, 2026
    Assignee: China RAILWAY No. 8 Engineering Group Co., Ltd.
    Inventors: Jian Hu, Fei Zhang, Zilong Zhang, Zhengwei Fu, Sihong Zhu, Quansheng Ran, Zeyu Wang, Malin Dong, Yue Lin, Xuejian Yang
  • METHOD FOR CALCULATING DIAMETER OF ANNULAR NON-FULL FORMWORK SUPPORT FOR CIRCULAR SHAFT
    Publication number: 20250155240
    Abstract: The present invention relates to the technical field of tunnel shield construction, specifically to a method for calculating diameter of an annular non-full formwork support for a circular shaft. By calculating and designing an inner diameter of a formwork support, sufficient space left inside a shaft can be ensured, and the thickness of secondary lining can be ensured at the same time, thereby preventing from affecting the structural stability of the shaft.
    Type: Application
    Filed: December 8, 2023
    Publication date: May 15, 2025
    Inventors: Jian Hu, Fei Zhang, Zilong Zhang, Zhengwei Fu, Sihong Zhu, Quansheng Ran, Zeyu Wang, Malin Dong, Yue Lin, Xuejian Yang