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. 07, 2023
Filed:
Feb. 02, 2023
Shijiazhuang Tiedao University, Shijiazhuang, CN;
China State Railway Group Co., Ltd., Beijing, CN;
Lijie Du, Shijiazhuang, CN;
Qingwei Li, Shijiazhuang, CN;
Yalei Yang, Shijiazhuang, CN;
Yong Zhao, Shijiazhuang, CN;
Siming Tian, Shijiazhuang, CN;
SHIJIAZHUANG TIEDAO UNIVERSITY, Shijiazhuang, CN;
CHINA STATE RAILWAY GROUP CO., LTD., Beijing, CN;
Abstract
A method for real-time strength estimation, grading, and early warning of rock mass in tunnel boring machine (TBM) tunneling, and belongs to the technical field of TBM tunnel construction. The method includes the following steps: establishing a general relation model of equivalent strength Rof the TBM boring rock mass and a field penetration index (FPI); and applying the model to TBM boring construction, estimating an integrity coefficient Kof the TBM boring rock mass in real time according to boring parameters acquired by a TBM in real time, and performing grading and early warning on the TBM boring rock mass according to a given grading standard and early warning values.