基于结构方程模型的施工安全潜变量相关分析  

Structural equation model based correlation analysis on latent variables of construction safety

作　　者：李昆[1] 孙开畅[1] 孙志禹 周剑岚[3] 

机构地区：[1]三峡大学土木与建筑学院,湖北宜昌443002 [2]中国长江三峡集团科技环保部,北京100038 [3]华中科技大学系统工程研究所,湖北武汉430074

出　　处：《水利水电技术》2013年第2期59-61,共3页Water Resources and Hydropower Engineering

基　　金：国家自然科学基金项目(51079078);国家自然科学基金项目(50909045)

摘　　要：采用结构方程模型分析了水电工程施工安全影响因素中的企业影响、安全管理、现场作业相关因素和施工人员的安全相关因素这四个潜变量的相互关系。首先采取现场问卷调查搜集了原始数据,并通过SPSS软件对数据进行信度和效度分析检验。以此为基础,按照不同的假设关系建立了三个结构方程模型,分别计算了其系数估计值和常用拟合指数。经综合对比分析,确定了最优化的模型,并联系工程实际意义,增加相关性路径,对该模型进行了进一步修正,最后得出其各项参数取值。模型计算结果显示了4个潜变量以及相对应的20个显变量之间的相关关系。The correlativity among the four latent variables, i. e. enterprise influence, safety management, in-situ working related factors and construction personnel safety related factors, is analyzed herein based on structural equation model. Firstly, the origi- nal data are collected by the questionnaire survey ; for which rehability and validity are analyzed with SPSS. On the basis of this, three models are established in accordance with different correlativities, and then the estimated values and normal fit indices are calculated as well. The optimized model is selected through a comprehensive comparative analysis and it is further corrected with the increase of the correlation paths in consideration of the practical engineering significance. Thus, the values of the parameters of the model are finally obtained. The results show the correlativity among the four latent variables and 20 corresponding manifest variables.

关 键 词：结构方程模型 工程施工 安全管理 潜变量 相关分析 

分 类 号：TV51[水利工程—水利水电工程]