Research on Lean Planning and Optimization for Precast Component Production Based on Discrete Event Simulation

Table 3

Name, activity, number, and time of each workstation used for semiprecast slabs.

Code	Name	Activities	Number	Time (minute)
				Min	Most likely	Max
1	Cleaning workstation	Mold preparing, including mod cleaning, mold platen cleaning, and antiadherent brushing	1	10	12	15
2	Steel installation workstation	Steel installing, including steel into mold and binding, as well as embedded part laying	6	20	25	30
3	Checking workstation before concrete pouring	Checking work, namely, whether steel and embedded part and others meet the design requirements	2	10	12	15
4	Concrete pouring and vibrating workstation	Concrete pouring and vibrating	2	10	12	15
5	Resting workstation	Initial setting and scratching	4	5	7.5	10
		Resting		10	15	20
6	Stacking crane	Transport to curing kiln	1	5	7.5	10
7	Curing kiln	Steam curing	1	480	480	480
8	Mold releasing workstation	Mold releasing	6	15	17.5	20
9	Buffer area for end face cleaning	End face cleaning	1	5	5	5
10	Temporary stacking area	Temporary stacking	1	5	5	5