Modified Rheological Model for Deep-Buried Silty Mudstone and Support Time Analysis Application

Table 1

Actual geo-stress measurement results.

Number	Depth of measuring section (m)	Main stress value (MPa)
		JDZK3	237.85–238.75	18.43	11.43	6.55
431.55–432.45	30.48		17.88	11.90
JDZK4	297.00–297.60	20.55	13.83	7.74
	315.86–316.46	20.53	12.76	8.24
JDZK8	437.80–438.60	24.79	15.79	11.38
	593.82–594.62	29.32	18.32	15.43
	711.92–712.72	33.98	20.78	18.50
JDZK9	150.49–151.34	11.32	7.51	4.07
	428.42–429.27	19.10	12.29	11.58

Note. is the maximum horizontal principal stress, is the minimum horizontal principal stress, and is the vertical principal stress.