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 6:
7. The construction method of rock burst prewarning protection system in non-contact tunnel construction according to claim 6, wherein the framework comprises six vertically disposed bottom vertical rods, the six bottom vertical rods are arranged symmetrically in a group of three, the bottom vertical rod is a vertically disposed I-beam, the six bottom vertical rods are distributed on two corresponding sides of a rectangle, in a group of three bottom vertical rods, the bottom vertical rods on two sides are both fixed with an inclinedly disposed bottom reinforcing rod, the bottom end of the bottom reinforcing rod is flushed with the bottom end of the bottom vertical rod, two bottom reinforcing rods on the same bottom vertical rod is arranged as a V shape with an opening downward, the I-shaped bottom vertical rod is fixedly connected with a bottom reinforcing block inside a groove in the position connected with the bottom reinforcing rod, and the bottom reinforcing block is fixed on one side of the bottom reinforcing rod;
an inclinedly disposed middle reinforcing rod is in fixed connection on a sidewall of the bottom vertical rod, a sidewall of the bottom vertical rod connected with the middle reinforcing rod is perpendicular to a sidewall thereof connected with the bottom reinforcing rod, the bottom end of the middle reinforcing rod is positioned between a top end of the bottom reinforcing rod and the bottom vertical rod, a horizontally disposed middle connecting frame is in fixed connection with the top end of the middle reinforcing rod, the middle connecting frame comprises a middle long rod connected on the top of the bottom vertical rod and a middle short rod fixed between two adjacent middle long rods.