Predictive Analysis of Settlement Risk in Tunnel Construction: A Bow-Tie-Bayesian Network Approach

Table 3

Partial construction log of the “normal excavation speed” in the XWS.

n = 1–10	n = 11–20	n = 21–30	n = 31–40	n = 41–50	n = 51–60	n = 61–70	n = 71–80	n = 81–90	n = 91–100
30.3–50.6	25–32	27.6–42.4	7.8–42.5	25–35	18–39	27–43	20–41	30–47	20–54
32.4–38.8	26–34	23.2–47.6	8.3–41.7	28–46	20–35	24–40	10–40	30–61	32–63
28.4–39.6	27–42	23.3–44.5	20.2–47.6	17–35	15–42	27–47	20–35	20–61	32–58
30.3–38.8	23–36	20.5–42.7	24.2–42.5	28–37	27–41	20–33	17–32	30–60	20–37
30.3–36.3	12.3–34.8	28.2–45.6	28.7–52.6	17–36	21–37	22–34	8–40	14–58	24–40
32–44	17.8–32.5	18.2–42.6	19–32	20–37	31–41	27–48	8–40	27–74	25–48
31–42	19.8–37.4	13.7–37.5	22–45	20–35	30–40	30–42	20–50	15–55	24–51
31–39	13.5–32.6	15.6–32.6	21–44	21–37	30–35	25–43	20–50	25–45	32–46
30–42	13.4–32.6	20–37	19–42	20–35	20–40	28–36	20–46	28–52	25–40
31–38	15.6–36.4	15–40	20–41	20–37	25–40	22.5–37	31–42	31–47	20–35