一种TBM隧道附属洞室爆破开挖防护装置及其使用方法
By designing a targeted protective structure and using adjustment and buffering mechanisms to control the deployment and tension of the blast curtain, the problems of shock wave and rock debris damage during the excavation of the auxiliary chambers of the TBM tunnel were solved, achieving the effects of reducing maintenance costs and improving construction efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CCCC SECOND HIGHWAY ENG CO LTD
- Filing Date
- 2023-12-12
- Publication Date
- 2026-07-17
AI Technical Summary
Existing blast protection devices are easily deformed by shock waves and damaged by flying rock debris during the excavation of auxiliary chambers in TBM tunnels, resulting in high maintenance costs and frequent disassembly and installation.
A protective device was designed, comprising a tunnel body, cross passage, sidewalls, frame, blast curtain, buffer mechanism, and adjustment mechanism. The adjustment mechanism controls the deployment and tension of the blast curtain, while the buffer mechanism absorbs the impact force and reduces damage to the facility.
It effectively counteracts the shock wave during blasting, reduces damage to facilities from flying debris, decreases equipment maintenance frequency and costs, and improves blasting and excavation efficiency.
Smart Images
Figure CN117780420B_ABST