CAJ | 학술논문

大坝变形监控指标不仅是监控大坝安全运行的重要指标,也是评价大坝工作状态的标准之一.目前常用的典型小概率法拟定指标时采用传统的正态分布,该分布的参数没有联系坝体的物理材料特性因而存在不足.由于威布尔分布能够拟合产品的寿命和强度等随机现象,用于大坝变形监控指标的拟定时,其参数能够反映大坝的坝体材料特性,不仅具有统计意义而且能在一定程度上体现大坝的工作状态,较采用传统的正态分布更加科学合理,且具有较强的适应性,能广泛运用于其他监控指标的拟定.
대패변형감공지표불부시감공대패안전운행적중요지표,야시평개대패공작상태적표준지일.목전상용적전형소개솔법의정지표시채용전통적정태분포,해분포적삼수몰유련계패체적물리재료특성인이존재불족.유우위포이분포능구의합산품적수명화강도등수궤현상,용우대패변형감공지표적의정시,기삼수능구반영대패적패체재료특성,불부구유통계의의이차능재일정정도상체현대패적공작상태,교채용전통적정태분포경가과학합리,차구유교강적괄응성,능엄범운용우기타감공지표적의정.
The monitoring indexes of dam deformation are not only a significant criterion for the dam safe operation, but also one of the standards for evaluating dam states. The traditional normal distribution is used in the course of monitoring indexes calculation by typical small probability at present. But the parameters of normal distribution are not related to the physical characteristics of dam materials so that it is in short. Wcibull distribution has been applied in fitting random phenomenon like product strength and life. When used in the indexes calculation, it is shown that the parameters of weibull distribution have some physical meaning,they can be related to the material characteristics. So this method has not only statistical meaning, but also can reflect the working states of dam in some way. As a result, it is more scientific reasonable and strong adaptable than the traditional normal distribution and can widely apply to other monitoring indexes.