基于空间单元分析的装配式建筑施工安全预警模型

Safety early-warning model of prefabricated construction based on spatial cell analysis

为提高装配式建筑施工的安全绩效,针对装配式建筑施工安全监测与预警问题,分析施工现场人的不安全行为、物的不安全状态以及不安全的环境及这3类危险源交叉关联情境;以单元空间为对象,提取各类危险源的动态信息,构建空间单元危险特征向量;采用支持向量机(SVM)分类算法建立装配式建筑施工空间单元安全预警模型。研究结果表明:空间单元安全监测与预警模型具有良好的泛化能力,可识别实际工程项目空间单元的安全风险。

In order to improve safety performance of prefabricated construction,targeting at monitoring and early warning problems,analysis was conducted on unsafe behaviors,states and environment as well as cross correlation of these three hazard sources.Then,with unit space as research object,dynamic information of various hazard sources was extracted to construct hazard feature vector of spatial cell.Finally,a safety early warning model of spatial cells in prefabricated construction was constructed by using SVM classification algorithm.The results show that the model has good generalization ability,which can identify safety risks of space cells in practical construction sites.