Patents by Inventor Myeung-Jong Yi

Myeung-Jong Yi 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 evaluation of the ground reinforcement effect using 4-D electrical resistivity monitoring
    Patent number: 8217668
    Abstract: Disclosed is a method of evaluating a ground reinforcement effect using 4-D electrical resistivity monitoring, wherein the ground reinforcement is made up on an underground cavity through cement mortar grouting, the method including: (a) installing a survey line for measuring electrical resistivity in a ground reinforcement zone; (b) measuring the electrical resistivity of the ground reinforcement zone through the survey line before grouting mortar, and imaging three-dimensional electrical resistivity distribution in the ground reinforcement zone by applying a three-dimensional electrical resistivity inversion to the measured results; (c) measuring the electrical resistivity of the ground reinforcement zone through the survey line while or after grouting the mortar, and imaging the three-dimensional electrical resistivity distribution in the ground reinforcement zone by applying the three-dimensional electrical resistivity inversion to the measured results; and (d) calculating a change ratio of the electrical
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: July 10, 2012
    Assignee: Korea Institute of Geoscience & Mineral Resources
    Inventors: Sam-Gyu Park, Jung-Ho Kim, Myeung-Jong Yi, Seong-Jun Cho