STUDY ON THE TUNNEL SECONDARY LINING CONCRETE CRACKING PERFORMANCE DURING SERVICE PERIOD OF WU-GUANG PASSENGER DEDICATED LINE

摘要：

This paper is based on the research on the cracking control of the tunnel secondary liningof Wu-Guang passenger dedicated line (Wu-Guang PDL) during service period and providesa new method for evaluating the concrete cracking performance of the tunnel secondary liningduring service period. Firstly, research and modeling of the load-bearing mechanism of tunnelsecondary lining are made. Then the secondary lining concrete permeability under cyclicloading is tested and the crack extension of the micro crack in concrete of tunnel secondarylining is shown by air permeability coefficient. The test shows that cellulose fibers canimprove the anti-cracking performance of tunnel secondary lining concrete during serviceperiod.

作者: Yan Liu Xian Liu Lei Huang Guoping Liu

作者单位: School of Material Science and Engineering,Tongji University,Shanghai 200092,China Department of Geotechnical Engineering,Tongji University,Shanghai 200092,China Shanghai Royang Innovative Material Technologies Co.,Ltd,Shanghai 200092,China

会议类型: 国际会议

会议名称: 1st International Conference on Microstructure Related Durability of Cementitious Composites(首届与水泥基复合材料耐久性相关的微观结构国际会议)

会议地点: 南京

会议语种:英文

页码: 785-793

在线出版日期: 2008-10-13（万方平台首次上网日期，不代表论文的发表时间）