Risk Identification and Assessment during the Excavation of the Deep Foundation Pit

Table 7

Initial decision matrix.

	U11	U12	U21	…	U45	U51	U52
E1	61.2	56.7	67.5	…	61.2	67.5	72
E2	52.8	52	60	…	52	62.4	64
E3	46.8	44.64	51.84	…	47.52	57.6	56.16
E4	52.65	55.08	56.7	…	52.65	60.75	63.18
E5	51.2	48	56	…	52	60.8	60