【作者】 魏新江； 金立乔； 张苑竹；

【Author】 Wei Xinjiang;Jin Liqiao;Zhang Yuanzhu;Department of Civil Engineering,City College,Zhejiang University;College of Civil Engineering and Architecture,Zhejiang University;

【机构】 浙江大学城市学院土木工程系； 浙江大学建筑工程学院；

【摘要】 文章基于带裂缝工作的水下隧道混凝土处于非饱和状态,总结了水分和氯离子在非饱和隧道混凝土中的迁移研究现状,提出了需要进一步研究的影响因素。分析认为,氯离子在水下隧道混凝土中迁移的过程是扩散和渗透的耦合;水下隧道裂缝检测宜采用目测—无损结合法,地质雷达探测法和红外成像法是比较适合隧道无损检测的方法;水下隧道裂缝修补需要根据其开裂情况选择合适的方法,注浆法较适宜使用。更多还原

【Abstract】 Since the cracked concrete of underwater tunnel appears in unsaturated condition,the study findings about water molecules and chloride ions migrating in unsaturated tunnel concrete are summarized and the influential factors needed to be further studied are presented in this paper.Analysis results show that the migrating process of chloride ions in underwater tunnel concrete is coupling of diffusion and penetration;the visual inspection-non-destructive inspection combined method is suitable for detecting the cracks in underwater tunnel and the appropriate non-destructive detection method is the geological radar detecting method and the infrared imaging method;the appropriate method shall be selected according to cracking condition for remediation of underwater tunnel cracks,especially the grouting method.更多还原