Three2dimensional finite element analysis and reinforcement calculation of segment l ining structure of TBM excavation tunnel
- Article
- Figures
- Metrics
- Preview PDF
- Reference
- Related
- Cited by
- Materials
Abstract:
In this paper, the pr oblems w hether the segment lining of TBM ex cavation tunnel can sustain the internal pressur e and st ructur e st reng th can meet the desig n requirements under high int ernal water pressure w ere investig ated, and t he effects of seg2 ment lining structure jo int on the over all stress of lining w ere analy zed. , Finite element method was used to dev elo p the thr ee2 dimensional model o f a lo ng2dist ance tunnel at a hy dr opow er st ation. T he results showed that under the internal water pressure, the str ess o f block segment lining is different fr om that o f conventio nal cast2concrete lining, str ess is concent rated at the bo lt co nnection of segment, stress r eleases at t he seam to cause t he decreasing str ess in ot her parts of segment, and the reinfo rcement co ncr ete volume is g reat ly reduced com par ed w ith that of the ov erall cast2in2place co ncr et e.
Keywords:
Project Supported:
Clc Number:
Mobile website
