长江科学院院报2016，Vol.33Issue(2)：42-47,6.DOI:10.11988/ckyyb.20140833
基于熵理论的锦屏一级拱坝空间变形预警指标拟定研究
Determination of Prewarning Index for Spatial Deformation of High Arch Dam in Jinping I Hydropower Station Based on Entropy Theory
摘要
Abstract
Jinping I high arch dam has been constructed and is in the first impoundment period. But the persistent slope deformation at the left bank is affecting the chord length of the dam. In order to guarantee safe operation of the project, we determine space deformation about chord length as prewarning index. First of all, we calculate the en⁃tropy weight of each measured point by modified entropy method. Then we give the expression of deformation entro⁃py of single measured point based on information entropy. On the basis of this, we establish the entropy of space de⁃formation of each measured point. At last, we use the maximum entropy theory to generate the probability density function of space deformation entropy of chord length , and determine the prewarning index of the entropy. The re⁃sults indicate that this method is highly effective and practicable, and provides reference for the safe operation of dam.关键词
熵理论/弦长值法/左岸边坡/锦屏一级拱坝/预警指标Key words
entropy theory/chord length method/slope at left bank/arch dam of Jinping I/prewarning index分类
建筑与水利引用本文复制引用
殷详详,周钟,赵二峰..基于熵理论的锦屏一级拱坝空间变形预警指标拟定研究[J].长江科学院院报,2016,33(2):42-47,6.基金项目
国家自然科学基金项目（51209077，51139001）；中央高校基本科研业务费项目（2012B07214）；新世纪优秀人才支持计划资助（NCET－11－0628）；高等学校博士学科点专项科研基金 （）
