Method for real-time strength estimation, grading, and early warning of rock mass in tunnel boring machine (TBM) tunneling

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United States of America Patent

PATENT NO 11808152
APP PUB NO 20230258087A1
SERIAL NO

18104831

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Abstract

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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 Rec of the TBM boring rock mass and a field penetration index (FPI); and applying the model to TBM boring construction, estimating an integrity coefficient Kv of 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.

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Patent Owner(s)

Patent OwnerAddress
SHIJIAZHUANG TIEDAO UNIVERSITY050043 NO 17 NORTH SECOND RING ROAD HEBEI SHIJIAZHUANG SHIJIAZHUANG CITY HEBEI PROVINCE 050043
CHINA STATE RAILWAY GROUP CO LTDNO 10 FUXING ROAD HAIDIAN DISTRICT BEIJING 100038

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Du, Lijie Shijiazhuang, CN 3 0
Li, Qingwei Shijiazhuang, CN 8 17
Tian, Siming Shijiazhuang, CN 3 0
Yang, Yalei Shijiazhuang, CN 3 0
Zhao, Yong Shijiazhuang, CN 330 5418

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