摘要
混凝土大坝的渗漏是影响大坝安全运行的重要因素,在渗漏早期具有渗漏范围窄、渗流量小的特点,同时又处于复杂的背景流场中,传统的方法受分辨率以及抗干扰能力的限制,很难有效准确地检测渗漏部位。本文以龚嘴电站拦河坝渗漏入口部位检测为例,利用伪随机电流场拟合渗漏场,通过检测电流场的分布达到检测渗漏入口部位的目的。
Leakage in concrete dams is the essential factors concerning the dam safety. Early leakage, which stands in the background of the complicated flow field, has narrow area and small flux leaking. Due to the limitation of the resolution and distinguish ability, the conventional methods cannot well detect leakage. A new method to detect leakage in concrete dams, which is named as psuedorandom flow-field method, has been put forward, and its application for detecting leakage in Gongzui hydropower station dam is introduced. The results show that the new method is a fast and effective method to detect the leakage in concrete dams.
出处
《水力发电学报》
EI
CSCD
北大核心
2006年第3期88-90,83,共4页
Journal of Hydroelectric Engineering
基金
国家自然科学基金重大项目(50099620-03-02)
关键词
水利管理
渗漏探测
伪随机流场法
混凝土坝
water conservancy management
leakage detecting
psuedorandom flow-field method
concrete dam
