Application of ultra high toughness cementitious composites to tunnel lining

被引：2
作者：
Han, Tongchun [1 ]
Wang, Fujian [1 ]
Dou, Hongqiang [1 ]
机构：
[1] Zhejiang Univ, Coll Civil Engn & Architecture, Hangzhou 310003, Zhejiang, Peoples R China
来源：
ADVANCES IN CIVIL ENGINEERING II, PTS 1-4 | 2013年 / 256-259卷
关键词：
Tunnel lining; UHTCC; Load structure method;
D O I：
10.4028/www.scientific.net/AMM.256-259.1226
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Ultra high toughness cementitious composites (UHTCC) demonstrates the properties of non-linear and harden under load. Its tensile strain may reach over 3%, whereas its average fracture width is only about 60 mu m which shows excellent ability in controlling crack. Tunnel lining is usually made of moulded concrete. One way it endure all the pressures from surrounding rock to guarantee tunnel stability, on the other hand also has low permeability to resist groundwater seepage, while UHTCC has the special advantages in this respect. By analyzing the pressures applied to tunnel lining in one tunnel section, discussion of how UHTCC is applied to lining is done, and some related questions about its application are explained by calculation.
引用
收藏
页码：1226 / 1229
页数：4
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