五强溪船闸裂缝稳定性非线性模型分析  

Crack stability analysis of Wuqiangxi navigation lock by nonlinear model

作　　者：张磊[1] 付清潭 张国新[1] 彭校初[1] 

机构地区：[1]中国水利水电科学研究院结构材料研究所,北京100038 [2]南水北调中线水源有限责任公司,湖北武汉442700

出　　处：《中国水利水电科学研究院学报》2014年第2期211-215,共5页Journal of China Institute of Water Resources and Hydropower Research

基　　金：水利部行业公益专项(201201050);973项目(2013CB036406;2013CB035904);十二五科技支撑项目(SQ2013BAJY4138);中国水利水电科学研究院科研专项(1118;1208;1361;1353)

摘　　要：本文通过多非线性优化方法,对五强溪船闸的裂缝开度监测资料进行统计分析,着重讨论了水位和温度效应对船闸开度的影响机理,并且建立了开度的统计模型,通过非线性拟合的方法分离了水位效应和温度效应对开度的影响度,明确了运行水位是影响船闸开度的首要因素,且温度变化也会影响缝开度变化,进而影响水压作用效果。最后结合对监测资料的分析,指出五强溪船闸在EL.108 m水位以下运行是安全的,但应加强观测,一旦观测结果出现异常或趋势发生变化,应限制运行,进行分析并考虑加固。This paper adopts nonlinear optimization methods to statistically analyze the crack opening moni-toring data of Wuqiangxi navigation lock. It focuses on the influence mechanism of water level and tempera-ture effects on the navigation lock crack opening, and establishes a statistical model for it. Through using the non-linear fitting method it isolates the impact of water level and temperature effects on crack opening and makes it explicit that the running water level is the primary factor affecting the crack opening of navi-gation lock, and the temperature changes may also affect the changes of crack opening, thereby affecting the effect of water pressure. Finally, combined with the analysis of monitoring data, it indicates that Wuq-iangxi navigation lock is running safely below the water level of EL.108m, and it also emphasizes that ob-servation shall be intensified so that the operations should be limited, analyzed and the navigation lock should be reinforced once exceptions appear in observations or changes happen in trend.

关 键 词：船闸 统计模型 非线性优化 裂缝开度 

分 类 号：TV698.1[水利工程—水利水电工程]