关键词: 深基坑, 知识图谱, 建筑信息模型, 风险识别, 安全监管

Abstract: With the continuous expansion of the development and application scale of urban underground space,the safety risk control related to the construction and operation management of underground space projects has attracted more and more attention from the government and relevant departments. The efficient and intelligent safety risk identification of deep foundation pit has increasingly become an urgent need for professionals. According to the practical needs of deep foundation pit safety supervision,this paper constructs the overall architecture of deep foundation pit intelligent supervision based on IOT,BIM and GIS technology. A deep foundation pit safety risk identification method integrating Building Information Model ( BIM) and knowledge map is designed. This method constructs the deep foundation pit safety risk identification knowledge graph based on the deep foundation pit construction requirements,safety specifications and accident experience summary,and focuses on the knowledge discovery,knowledge extraction and knowledge construction of construction objects and related objects based on BIM model,to fully and quickly mine the entity relationships of different types of deep foundation pit construction,So as to assist in the intelligent identification of the safety risk of deep foundation pit. The example verification shows that this method can greatly improve the work efficiency of professionals,solve the problems of manual dependence and professional dependence in the process of safety identification to a certain extent,and provide some support for the rapid,efficient and accurate identification of deep foundation pit safety risks.

Key words: deep foundation pit,knowledge graph,Building Information Model (BIM),risk identification,safety supervision