Field Measurement and Numerical Modelling Study on Mining-Induced Subsidence in a Typical Underground Mining Area of Northwestern China

Table 7

Subsidence velocity of point Q32.

Monitoring time	Subsidence value with respect to survey of last time (mm)	Days from last survey (days)	Rate (mm/d)	Total subsidence (m)	Monitoring time
2019/7/27	−2.028	84	−24.143	84	−2.028
2019/8/29	0.008	33	0.242	117	−2.02
2020/2/29	−0.21	184	−1.141	301	−2.23
2020/4/2	−0.096	33	−2.909	334	−2.326
2020/4/29	−0.12	27	−4.444	361	−2.446
2020/5/13	−0.185	14	−13.214	375	−2.631
2020/6/3	−0.007	21	−0.333	396	−2.638
2020/6/17	−0.059	14	−4.214	410	−2.697
2020/7/3	0.05	16	3.125	426	−2.647