摘要
基于压力电阻技术对混凝土坝结构安全进行监测,为混凝土坝构建损伤评估体系。利用压力电阻坝体监测电导信号,完成对坝体动力反应参数的评价。在碾压式坝体损伤监测中,该技术能准确对坝头、坝踵部位的损伤进行监测。同时,采用该技术对改进的加气式坝体进行监测,碾压式最大水平位移60.64mm,气压式比碾压式减少0.86,加气式具有更好的抗震缓冲能力。研究表明,压电技术可为混凝土坝的安全监测以及坝体维护提供技术参考。
The structural safety of concrete dam is monitored based on pressure resistance technology,and the damage assessment system for concrete dam is built through real-time analysis of seismic performance of gravity dam.The evaluation of dam dynamic response parameters is completed by using the pressure resistance dam body monitoring conductivity signal.In the damage monitoring of roller compacted dam,this technology can accurately monitor the damage of dam head and dam heel.At the same time,this technology is used to monitor the improved aerated dam body.The maximum horizontal displacement of the rolling type is 60.64mm,which is 0.86 less than that of the rolling type.The aerated type has better seismic buffering capacity.It can be seen that piezoelectric technology can provide technical reference for safety monitoring and dam body maintenance of concrete dams.
作者
杨猛
郭林林
YANG Meng;GUO Lin-lin(Zhujiang Water Conservancy Committee of Ministry of Water Resources Zhujiang Water Conservan-cy Comprehensive Technology Center,Guangzhou 510000,China)
出处
《水利科技与经济》
2023年第8期101-106,共6页
Water Conservancy Science and Technology and Economy
关键词
混凝土坝
地震
压力电阻
电导信号
评估
concrete dam
earthquake
pressure resistance
conductivity signal
assessment
