Patents by Inventor Shuangjie Wang

Shuangjie Wang 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 and pavement structure for protecting highway subgrade in frozen soil area
    Patent number: 8303211
    Abstract: The present invention provides a method and pavement structure for protecting highway subgrade in frozen soil areas. The pavement structure has two or more pavement layers having gradient thermal conductivity; the thermal conductivity is layered among the pavement layers and is lowered from top to bottom, so that the pavement forms a uni-directional thermal conducting tunnel from the subgrade to the air. Heat can be easily released from the subgrade into the air, and is prevented from being transferred from the air to the subgrade. In this way, the frozen soil layer beneath the subgrade is cooled, so that the frozen soil table is made stable, and the highway subgrade in frozen soil areas is protected.
    Type: Grant
    Filed: December 31, 2009
    Date of Patent: November 6, 2012
    Assignees: CCCC First Highway Consultants Co., Ltd, Southeast University
    Inventors: Shuangjie Wang, Shengyue Wang, Jianbing Chen, Xiaofeng Zhou, Juan Zhang, Qiyang Zhu
  • METHOD AND PAVEMENT STRUCTURE FOR PROTECTING HIGHWAY SUBGRADE IN FROZEN SOIL AREA
    Publication number: 20110243659
    Abstract: The present invention provides a method and pavement structure for protecting highway subgrade in frozen soil areas. The pavement structure has two or more pavement layers having gradient thermal conductivity; the thermal conductivity is layered among the pavement layers and is lowered from top to bottom, so that the pavement forms a uni-directional thermal conducting tunnel from the subgrade to the air. Heat can be easily released from the subgrade into the air, and is prevented from being transferred from the air to the subgrade. In this way, the frozen soil layer beneath the subgrade is cooled, so that the frozen soil table is made stable, and the highway subgrade in frozen soil areas is protected.
    Type: Application
    Filed: December 31, 2009
    Publication date: October 6, 2011
    Inventors: Shuangjie Wang, Shengyue Wang, Jianbing Chen, Xiaofeng Zhou, Juan Zhang, Qiyang Zhu