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, 2024
Filed:
Sep. 20, 2023
University of Science and Technology Beijing, Beijing, CN;
China University of Mining and Technology, Beijing, Beijing, CN;
Renshu Yang, Beijing, CN;
Yanbing Wang, Beijing, CN;
Chengxiao Li, Beijing, CN;
Zhaoran Zhang, Beijing, CN;
Xinmin Ma, Beijing, CN;
Hang Zhang, Beijing, CN;
Zhouqi Bao, Beijing, CN;
University of Science and Technology Beijing, Beijing, CN;
China University of Mining and Technology, Beijing, Beijing, CN;
Abstract
An efficient blasting method for similar cutting in a rock tunnel is provided, which relates to the technical field of rock tunneling. The method includes the following steps: drilling: drilling central holes, lower cutting holes, upper cutting holes, auxiliary holes and peripheral holes in a cross section area for tunnel construction; filling explosives: filling explosives into the central holes, the lower cutting holes, the upper cutting holes, the auxiliary holes and the peripheral holes; and blasting: blasting following blast holes in turn to complete full-face one-time blasting in a millisecond delay blasting mode. The method is applicable for construction scenes of drilling and blasting methods.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile