LIAO Ding-jia,YUAN Ming-dao,TAN Cai,et al.Effect of Corrosion and Erosion on Stability of Intermittently Operating Water Supply Tunnel[J].China Water & Wastewater,2021,37(5 5):51-56.
Effect of Corrosion and Erosion on Stability of Intermittently Operating Water Supply Tunnel
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第37卷
Number:
5 5
Page:
51-56
Column:
Date of publication:
2021-03-01
- Keywords:
- water supply tunnel; intermittent operation; corrosion; erosion; Spearman correlation analysis
- Abstract:
- Field investigation, sampling analysis and non-destructive detection were used to explore the effect of corrosion and erosion on intermittently operating water supply tunnel. The compressive strength of tunnel concrete was negatively correlated with corrosion, and cavity of the tunnel was positively correlated with erosion. The decrease of the concrete strength at the corrosion site was the main reason for spatial variability of concrete compressive strength in the tunnel. At present, the loss of concrete strength and tunnel voids caused by corrosion and erosion was not enough to affect the structural stability of water supply tunnel. However, water supply tunnels might be damaged with the aggravation of corrosion and erosion.
Last Update:
2021-03-01