Patent ID: 11920474
Assignee: CHINA RAILWAY 16TH BUREAU GROUP BEIJING JIANGONG MACHINERY CO., LTD.
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 8:
9. The construction method of rock burst prewarning protection system in non-contact tunnel construction according to claim 8, wherein there are three middle long rods, and each end of the middle long rod is fixed on a top of one bottom vertical rod, there are ten middle short rods, which are uniformly distributed between two gaps formed by three middle long rods, so as to form a net frame structure, the middle long rod is I-shaped, and the middle long rod is fixedly connected with a middle connecting block inside the groove in the position connected with the middle short rod, the middle connecting block is in a fixed connection with the middle short rod.