摘要
为更加准确地评估水工建筑物混凝土耐久性影响因素之间的作用关系,科学地分析结构服役状态及各要素影响程度,文章以某灌区渡槽工程为例,从人为、材料、环境3个方面探讨耐久性影响因素,从而建立多指标、多层次评价体系。然后基于FAHP法构建综合模型,将定性指标采用模糊数学理论作定量化处理,对多级指标体系各要素权重采用可拓区间判断进行计算,根据模糊综合法逐级评估计算值定量描述了结构耐久性状态。研究表明:灌区渡槽混凝土耐久性综合评分为66.82,属于Ⅱ级基本正常水平;基于FAHP法的评价模型能够较为客观、准确的反映渡槽服役运行的真实状态和耐久性等级,在水利工程结构安全评价中具有广泛的应用前景。
In order to evaluate accurately the relationship between the influence factors of concrete durability of the hydraulic buildings and analyze scientifically the structural service status and effect degree of each factor, taking the aqueduct project of an irrigation area as the example, this paper discussed durability influence factors from three aspects of human, material and environment to construct the multi-index and multi-level evaluation system. Subsequently, the comprehensive model was established based on FAHP method in this study, and the fuzzy mathematics theory was adopted to deal with quantitatively the qualitative index, the extension section judgment was used to calculate the weight of each factor in multi-index system, the structural durability status was described quantitatively in accordance with the calculation value evaluated step by step with the fuzzy comprehensive method. The study shows that the concrete durability comprehensive score of the aqueduct in the irrigated area is 66.82, belonging to grade Ⅱ, which is basically normal;the evaluation model based on FAHP method can reflect objectively and accurately the actual state and durability grade of aqueduct service operation, which will have a broad application prospect in structural safety evaluation of water conservancy projects.
作者
黄春霞
HUANG Chun-xia(Nanchang County Xianghu Lake Lianwei Management Station,Jiangxi Province,Nanchang 330025,China)
出处
《黑龙江水利科技》
2019年第9期39-44,共6页
Heilongjiang Hydraulic Science and Technology
关键词
FAHP法
可拓判断矩阵
耐久性评估
渡槽工程
FAHP method
extension judgment matrix
durability evaluation
aqueduct project
