The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 06, 2012
Filed:
Dec. 31, 2009
Shuangjie Wang, Xi'an, CN;
Shengyue Wang, Nanjing, CN;
Jianbing Chen, Xi'an, CN;
Xiaofeng Zhou, Nanjing, CN;
Juan Zhang, Xi'an, CN;
Qiyang Zhu, Nanjing, CN;
Shuangjie Wang, Xi'an, CN;
Shengyue Wang, Nanjing, CN;
Jianbing Chen, Xi'an, CN;
Xiaofeng Zhou, Nanjing, CN;
Juan Zhang, Xi'an, CN;
Qiyang Zhu, Nanjing, CN;
CCCC First Highway Consultants Co., Ltd, Xi'an, Shaanxi Province, CN;
Southeast University, Nanjing, Jiangsu Province, CN;
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.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile