基于SEM的沙漠公路路基工程施工风险研究

Research on Construction Risk of Desert Highway Subgrade Engineering Based on SEM

在沙漠地区进行公路建设对完善交通网络节点、发展偏远地区经济具有重要意义。为有效探究沙漠公路路基工程施工风险,该文从人员风险、技术风险、材料风险、机械风险和环境风险5个方面出发,通过文献研究法筛选出影响沙漠公路路基工程施工风险的23项指标;基于问卷调查收集到的有效数据,构建沙漠公路路基工程施工风险的结构方程模型(Structural Equation Modeling,简称SEM);分析施工风险关键影响因素。结果表明:沙漠公路路基工程施工风险受恶劣气候、人员三违行为、风积沙质量、机械维修与保养、技术交底完整性的影响较大。提出具有针对性的控制措施,可为沙漠公路可持续发展提供参考。

Highway construction in desert areas is of great significance to improving the nodes of transportation networks and developing the economy of remote areas.In order to effectively explore the construction risks of desert highway subgrade engineering,the five aspects of personnel risk,technical risk,material risk,mechanical risk,and environmental risk were analyzed,and 23 indicators affecting the construction risk of desert highway subgrade engineering were screened out by literature research method.Based on the effective data collected by questionnaire survey,a structural equation model(SEM)of the construction risk of desert highway subgrade engineering was constructed,and the key influencing factors of the construction risk were analyzed.The results show that the construction risk of desert highway subgrade engineering is mainly affected by bad weather,violations of personnel in three aspects,quality of aeolian sand,mechanical repair and maintenance,and technical integrity.Targeted control measures are also proposed to provide a reference for the sustainable development of desert highways.