基于因子分析法的某大坝导流洞堵头处裂缝成因分析  

Cause Analysis of Cracks in Dam Diversion Tunnel Plug Based on Factor Analysis Method

作　　者：李星[1,2] 储冬冬 冯树荣 冯龙龙[1,2] 

机构地区：[1]河海大学水文水资源号水利工程科学国家重点实验室,江苏南京210098 [2]河海大学水利水电学院,江苏南京210098 [3]江苏省水利科学研究院,江苏南京210017 [4]中国水电顾问集团中南勘测设计研究院有限公司,湖南长沙410014

出　　处：《水电能源科学》2015年第3期64-67,共4页Water Resources and Power

基　　金：高等学校博士学科点专项科研基金项目(20130094110010);国家自然科学基金项目(51179066,41323001);江苏省杰出青年基金项目(BK2012036);水利部公益性行业科研专项经费项目(201301061,201201038);中国水电顾问集团科技项目(CHC-KJ-2007-02)

摘　　要：针对传统大坝安全监控中监测效应量与应变量之间相关性不足且应变量间的非线性相关关系问题,通过因子分析法,揭示了裂缝开合度与各影响因素的关系。实例应用表明,因子分析法应用于大坝导流洞堵头的裂缝成因分析中,通过因子载荷阵和因子旋转阵寻找裂缝监测资料的公共因子,确定影响大坝裂缝开合度的主要因素及其影响程度,与实测结果较吻合。Traditional model of dam safety monitoring has shortcomings of the correlation between monitoring variables and dependent variables as well as the nonlinear relationship between dependent variables.Factor analysis method is used to determine the relationship between cracks opening and influencing factors.Application example shows that the application of cause analysis of cracks in dam diversion tunnel plug based on factor analysis,the common factor of the crack monitoring data is sought through factor loading matrix and factor rotation matrix of the calculation results,and the main factors and its influence degree of dam crack opening are determined;the results fit well with the measured values.

关 键 词：大坝 裂缝 成因分析 实测资料 因子分析法 

分 类 号：TV698.11[水利工程—水利水电工程]