Analysis on damage causes of built-in corridor in core rock-fill dam on thick overburden:A case study
作者机构：College of Water Conservancy and Hydropower EngineeringHohai UniversityNanjing 210024China State Key Laboratory of Hydrology-Water Resources and Hydraulic EngineeringHohai UniversityNanjing 210024China
出 版 物：《Frontiers of Structural and Civil Engineering》 (结构与土木工程前沿（英文版）)
年 卷 期：2022年第16卷第6期
页 面：762-780页
核心收录：
学科分类：080702[工学-热能工程] 08[工学] 0807[工学-动力工程及工程热物理] 0814[工学-土木工程]
基 金：This work reported here was supported by the National Natural Science Foundation of China/Yalong River Joint Fund Project(Grant No.U1765205) Jiangsu Colleges and Universities Advantageous Discipline Construction Project(Water Conservancy Project)(No.YS11001)
主 题：thick overburden built-in corridor stress deformation causes for damage concrete damaged plasticity
摘 要：The stress state of the built-in corridor in core rock-fill dam on thick overburden is extremely complex,which may produce cracking and *** purpose of this paper was to investigate the effect of thick overburden on the stress and deformation of the built-in corridor in a rock-fill dam,and ascertain the damage causes of the *** rationality of the analysis method for corridor with similar structure is another *** approach is based on finiteelement method and the calculation result accuracy is verified by the field monitoring *** improved analysis method for corridors with similar structure is proposed by comparing various corridor load calculation methods and concrete constitutive *** demonstrate that the damage causes of the corridor are the deformability difference between the overburden and concrete and the special structural *** the calculation model considering dam construction process,contact between concrete and surrounding soil,and concrete damage plasticity can reasonably reflect the mechanical behavior of the *** research conclusions may have a reference significance for the analysis of tunnels similar to built-in corridors.
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