Safety Management System Prototype/Framework of Deep Foundation Pit Based on BIM and IoT

Table 1

Classification of hazardous areas in deep foundation pit construction site.

Type of accident		Hazardous area
Collapse	Pit edge	1.2 m from foundation pit edge
	Foundation pit support	The inspection is qualified, and the lack of the latest safety inspection record is regarded as a hazardous area
	Scaffold	The inspection is qualified, and the lack of the latest safety inspection record is regarded as a hazardous area
Falling from a height	Manual digging pile hole	1 m from the edge of the orifice
	The edge of the hole	0.6 m from the edge of the hole
	Scaffolding formwork	Coverage of formwork collapse
	Tower crane use	The range of the circle is centred on the hanging object, and the instantaneous reaction distance of the person is the radius
Object strike	Support erection	The inspection is qualified, and the lack of the latest safety inspection record is regarded as a hazardous area
	Scaffolding	The inspection is qualified, and the lack of the latest safety inspection record is regarded as a hazardous area
	Tower crane use	Plane projection area
	Tower crane	Detecting tower crane speed, with overspeed being considered unsafe area
	Formwork	Demolishing area
Mechanical injury	Crane	Plane projection area
	Concrete pumps	Work area and moving route
	Other moving equipment or machine	Work area and moving route
Adjacent environment damage	Crane	The maximum range of the circle centred on the hanging object
	Support system	Retaining structure or other support element