工程现场作业中风险控制的向量模型  

A Vector Model of Risk Control in Engineering Site Operation

作　　者：江新[1,2] 袁轩 袁国常[3] JIANG Xing1,2, YUAN Xuan1,2, YUAN Guo-chang3(1. Hubei Provincial Key Laboratory of Hydropower Engineering Construction and Management, Yichang 443002, China） （2. Water Conservancy ＆ Environment College of Three Gorges University, Yichang 443002, China） （3. Hubei Three Gorges Tourism Vocational and Technical College, Yichang 443100, China)

机构地区：[1]三峡大学水利与环境学院,湖北宜昌443000 [2]湖北省水电工程施工与管理重点实验室,湖北宜昌443002 [3]三峡旅游职业技术学院基础部,湖北宜昌443100

出　　处：《数学的实践与认识》2018年第17期26-32,共7页Mathematics in Practice and Theory

摘　　要：将工程施工现场作业各风险因素按照主体因素、客体因素、控制因素进行分类,借助于单位球体,建立起向量模型.借此推导出控制向量γ与各风险向量的合向量ω间所夹锐角的余弦值的计算公式;将这个余弦值视为控制向量γ对ω的控制强度,又确定出γ对ω的控制强度的最小临界值,给出控制向量有效性的判断,并以此得到检验SEM模型适用性的方法.作为向量模型实际应用的例子,对袁轩等所建立的SEM模型进行了适用性检验.同时指出,向量模型具有清晰、直观的优点,为工程施工现场作业中的安全管理者提供了可操作性的理论工具.In this paper, the risk factors of engineering construction site are classified according to the main factors, object factors and control factors, and with the help of the unit sphere, the vector model is established. The formula for calculating the cosine of the sharp angle between the control vector γ and the vector of the risk vector ω is deduced, and the minimum critical value of the control intensity of γ to ω is determined, givedthe judgment of the validity of the control vector, and thus the method of checking the applicability of SEM models. As an example of the practical application of the vector model, theapplicabilityof SEM model established by Yuan Xuan was been tested.At the same time, it is pointed out that the vector model has clear and intuitive advantages, for the construction of the construction site operations in the safety of managers to provide a theoretical tool for the operability.

关 键 词：现场作业风险 SEM模型 向量模型 风险控制 

分 类 号：F426.92[经济管理—产业经济] F272.3