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:
May. 07, 2019
Filed:
Jan. 12, 2018
Applicant:
Chang'an University, Xi'an, CN;
Inventors:
Jianxun Chen, Xi'an, CN;
Lijun Chen, Xi'an, CN;
Yanbin Luo, Xi'an, CN;
Pei Huang, Xi'an, CN;
Chaoxuan Zhang, Xi'an, CN;
Mengen Qin, Xi'an, CN;
Assignee:
CHANG'AN UNIVERISTY, Xi'An, Shaanxi, CN;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21D 11/10 (2006.01); E21D 9/14 (2006.01); E21D 11/18 (2006.01);
U.S. Cl.
CPC ...
E21D 11/107 (2013.01); E21D 11/18 (2013.01); E21D 9/14 (2013.01);
Abstract
A method for deformation control of large-span tunnel in chlorite schist stratum. The method divides the large deformation of large-span tunnel in chlorite schist stratum into five deformation grades according to the surrounding rock conditions of the tunnel. In response to each deformation grade, the deformation control of large-span tunnel is determined so as to ensure the safety and stability of the tunnel support structure and to avoid the clearance intrusion caused by tunnel deformation.