期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：304
期号：5
页码：1-7
DOI：10.1088/1755-1315/304/5/052075
出版社：IOP Publishing
摘要：The causes of cracks in concrete slab from the aspects of structural stress and nonstructural stress are summarized firstly. And then, based on the relationship between the stress intensity factor and the fracture toughness, a 3D finite element model of a concrete face rock fill dam, with concrete slab under partial cracking, is established to study effects of rockfill body deformation, water level and temperature change on the stress distribution. On the basis, the stability and expansion trend of a typical crack are evaluated by numerical simulation of different sizes in depth, especially the influence of the cold-air outbreak.
