Mining-Induced Damage Characteristics of Floors during Fully Mechanized Caving Mining: A Case Study

Table 2

Failure and damage characteristics of the floor rocks at the buried locations of each probe sensor.

Mining face	Probe sensor	Buried depth (m)	Failure or not	Mutation type	Failure depth (m)
100502-80	1	4.93	Y	Pull-pressure strain mutation	12.5–14.65
	2	7.93	Y	Abnormal mutation
	5	9.5	Y	Pull-pressure strain mutation
	3	10.93	Y	Abnormal mutation
	6	12.5	Y	Pull-pressure strain mutation
	4	14.65	N	—
	7	15.5	N	—
	8	17.5	N	—
	9	19.5	N	—
100502-180	10	12.2	Y	Pull-pressure strain mutation	17.5–19.2
	15	13.5	Y	Pull-pressure strain mutation
	11	15.2	Y	Pull-pressure strain mutation
	12	17.2	Probe damaged	—
	16	17.5	Y	Pull-pressure strain mutation
	13	19.2	N	—
	17	20	N	—
	14	22	N	—