摘要
结合某长距离输水工程,对跨活断层管段采用地面钢衬钢筋混凝土管道布置,管线中布置若干复式波纹管伸缩节以适应活断层的错动位移,并采用有限元方法研究了该方案对活断层错动位移的适应性及抗震性能。结果表明:采用钢衬钢筋混凝土管道、沿线设置一定数量的伸缩节能够较好适应活断层的蠕滑变形,并且管道抗震性较好。对于黏滑错动,主断层范围内的管道发生破坏的可能性很大,可在主断层边缘布置伸缩节,以控制管道破坏范围在主断层范围内,并采取相关工程措施防止产生次生灾害。
Based on a long-distance water transmission project, an aboveground steel lined reinforced concrete penstock is designed to cross an active fault. Several double bellows expansion joints are arranged in the pipeline to adapt to the fault movement, and the adaptability to fault movement and seismic behaviors of the penstock are studied by using the finite element method. The results show that the use of steel lined reinforced concrete penstock and a certain number of expansion joints in the pipeline can adapt to the creep displacement of active faults well. The steel lined reinforced concrete penstock also has a good seismic performance. For stick-slip deformation, there is a great possibility of serious damage to the penstock segment laid on the main fault. However, expansion joints can be arranged on the edge of main fault to control the damage within the main fault region, and relevant engineering measures should be taken to prevent secondary disasters.
作者
张彪
石长征
伍鹤皋
苏凯
张荣斌
ZHANG Biao;SHI Chang-zheng;WU He-gao;SU Kai;ZHANG Rong-bin(State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University,Wuhan 430072,China)
出处
《中国农村水利水电》
北大核心
2019年第5期149-154,164,共7页
China Rural Water and Hydropower
基金
国家重点研发计划项目(2016YFC0401803)
国家自然科学基金项目(51409194)
关键词
活断层
钢衬钢筋混凝土管道
断层错动
波纹管伸缩节
抗震性
有限单元法
active fault
steel lined reinforced concrete penstock
fault movement
bellows expansion joint
seismic resistance
finite element method
